[Kernel-packages] [Bug 1795857] Re: enable CONFIG_DRM_BOCHS
I've send a patch for the kernel part of this request: https://lists.ubuntu.com/archives/kernel-team/2019-March/099704.html Additionally to it the kmod's "blacklist bochs-drm" entry from it's /etc/modprobe.d/blacklist-framebuffer.conf file it ships would need to get removed. With this I can successfully start VMs wit stdvga as display under QEMU and/or QEMU/KVM again. Without this it's completely broken, but note that the installation itself works, you'll only see the issues after you boot in the fresh installed system. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1795857 Title: enable CONFIG_DRM_BOCHS Status in kmod package in Ubuntu: New Status in linux package in Ubuntu: Confirmed Bug description: CONFIG_DRM_BOCHS got disabled for https://bugs.launchpad.net/ubuntu/+source/kmod/+bug/1378648 but doing so regressed running qemu with the 'std' VGA driver, where it'd fail to start X after install, as mentioned on bug 1794280 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kmod/+bug/1795857/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1861147] Re: No fc connect after update from 4.15.0-72 to 4.15.0-76
** Package changed: ubuntu => linux (Ubuntu) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1861147 Title: No fc connect after update from 4.15.0-72 to 4.15.0-76 Status in linux package in Ubuntu: Confirmed Bug description: No fc connect after update from 4.15.0-72-generic to 4.15.0-76-generic. rescan-scsi-bus no found luns. HP BL-460c G7 06:00.0 Fibre Channel: QLogic Corp. ISP2532-based 8Gb Fibre Channel to PCI Express HBA (rev 02) 06:00.1 Fibre Channel: QLogic Corp. ISP2532-based 8Gb Fibre Channel to PCI Express HBA (rev 02) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1861147/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1851709] [NEW] Ubuntu-5.0.0-33.35 introduces KVM regression with old Intel CPUs and Linux guests
Public bug reported:
Mostly the same info as on a related kernel.org bugzilla entr[0].
[0]: https://bugzilla.kernel.org/show_bug.cgi?id=205441
We got issues reported with old Intel CPUs and Linux guest run with
QEMU/KVM after a recent kernel update which is based on
Ubuntu-5.0.0-33.35.
I bisected this here, with following result:
git bisect log
# bad: [3b931173c97b0d73f80ea55b72bb2966a246167f] UBUNTU: Ubuntu-5.0.0-33.35
# good: [5d5a6b36e94909962297fae609bff487de3cc43a] UBUNTU: Ubuntu-5.0.0-30.32
git bisect start '3b931173c97b0d73f80ea55b72bb2966a246167f'
'5d5a6b36e94909962297fae609bff487de3cc43a'
# good: [7b4f844b33969ab166800f8936beef153fab736e] net/ibmvnic: free reset work
of removed device from queue
git bisect good 7b4f844b33969ab166800f8936beef153fab736e
# bad: [6c1fc88702a4f33886b44ce5b6f374893b95e369] arm64: tlb: Ensure we execute
an ISB following walk cache invalidation
git bisect bad 6c1fc88702a4f33886b44ce5b6f374893b95e369
# good: [e627a027b54eccc95f9e374d69aead7f1498877b] loop: Add LOOP_SET_DIRECT_IO
to compat ioctl
git bisect good e627a027b54eccc95f9e374d69aead7f1498877b
# good: [29919eff6333bc67ec580b454afdd8b49883df2f] libata/ahci: Drop PCS quirk
for Denverton and beyond
git bisect good 29919eff6333bc67ec580b454afdd8b49883df2f
# good: [cb44193f94af73928f8df049ffbb6b4a0be136ae] PM / devfreq: passive: fix
compiler warning
git bisect good cb44193f94af73928f8df049ffbb6b4a0be136ae
# good: [b1d479b27b26966aea931094b31864979d7f8102] scsi: implement .cleanup_rq
callback
git bisect good b1d479b27b26966aea931094b31864979d7f8102
# bad: [ec15813844b05d8cbd4352c65a20e57d16f9f936] media: sn9c20x: Add MSI
MS-1039 laptop to flip_dmi_table
git bisect bad ec15813844b05d8cbd4352c65a20e57d16f9f936
# good: [e83601f51a90d9739ced9ff42b6f202f8f802c72] parisc: Disable HP HSC-PCI
Cards to prevent kernel crash
git bisect good e83601f51a90d9739ced9ff42b6f202f8f802c72
# good: [6d393bdf3b3f4b629070329488d3c6a3e142602b] KVM: x86: set
ctxt->have_exception in x86_decode_insn()
git bisect good 6d393bdf3b3f4b629070329488d3c6a3e142602b
# bad: [208007519a7385a57b0c0a3c180142a521594876] KVM: x86: Manually calculate
reserved bits when loading PDPTRS
git bisect bad 208007519a7385a57b0c0a3c180142a521594876
# first bad commit: [208007519a7385a57b0c0a3c180142a521594876] KVM: x86:
Manually calculate reserved bits when loading PDPTRS
Which is:
KVM: x86: Manually calculate reserved bits when loading PDPTRS
BugLink: https://bugs.launchpad.net/bugs/1848367
commit 16cfacc8085782dab8e365979356ce1ca87fd6cc upstream.
Manually generate the PDPTR reserved bit mask when explicitly loading
PDPTRs. The reserved bits that are being tracked by the MMU reflect the
current paging mode, which is unlikely to be PAE paging in the vast
majority of flows that use load_pdptrs(), e.g. CR0 and CR4 emulation,
__set_sregs(), etc... This can cause KVM to incorrectly signal a bad
PDPTR, or more likely, miss a reserved bit check and subsequently fail
a VM-Enter due to a bad VMCS.GUEST_PDPTR.
Add a one off helper to generate the reserved bits instead of sharing
code across the MMU's calculations and the PDPTR emulation. The PDPTR
reserved bits are basically set in stone, and pushing a helper into
the MMU's calculation adds unnecessary complexity without improving
readability.
Oppurtunistically fix/update the comment for load_pdptrs().
Note, the buggy commit also introduced a deliberate functional change,
"Also remove bit 5-6 from rsvd_bits_mask per latest SDM.", which was
effectively (and correctly) reverted by commit cd9ae5fe47df ("KVM: x86:
Fix page-tables reserved bits"). A bit of SDM archaeology shows that
the SDM from late 2008 had a bug (likely a copy+paste error) where it
listed bits 6:5 as AVL and A for PDPTEs used for 4k entries but reserved
for 2mb entries. I.e. the SDM contradicted itself, and bits 6:5 are and
always have been reserved.
Fixes: 20c466b56168d ("KVM: Use rsvd_bits_mask in load_pdptrs()")
Cc: sta...@vger.kernel.org
Cc: Nadav Amit
Reported-by: Doug Reiland
Signed-off-by: Sean Christopherson
Reviewed-by: Peter Xu
Signed-off-by: Paolo Bonzini
Signed-off-by: Greg Kroah-Hartman
Signed-off-by: Kamal Mostafa
Signed-off-by: Kleber Sacilotto de Souza
This one is also included in the 4.19.81 (or more correctly, it's there since
v4.19.77) with commit 496cf984a60edb5534118a596613cc9971e406e8 [0] or
upstream commit 16cfacc8085782dab8e365979356ce1ca87fd6cc [1].
[0]:
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/commit/?h=v4.19.82&id=496cf984a60edb5534118a596613cc9971e406e8
[1]: https://git.kernel.org/torvalds/c/16cfacc8085782dab8e365979356ce1ca87fd6cc
Funny thing is: I cannot reproduce this with a 5.3.7 (Eoan) kernel, which _also_
includes above commit. So possible another patch is missing in the backport,
did not find anything obvious though...
So summary for r
[Kernel-packages] [Bug 1851709] Re: Ubuntu-5.0.0-33.35 introduces KVM regression with old Intel CPUs and Linux guests
Thanks Mr. Kernel Bot but I really do not think that this bug misses
logs :)
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1851709
Title:
Ubuntu-5.0.0-33.35 introduces KVM regression with old Intel CPUs and
Linux guests
Status in linux package in Ubuntu:
Confirmed
Bug description:
Mostly the same info as on a related kernel.org bugzilla entr[0].
[0]: https://bugzilla.kernel.org/show_bug.cgi?id=205441
We got issues reported with old Intel CPUs and Linux guest run with
QEMU/KVM after a recent kernel update which is based on
Ubuntu-5.0.0-33.35.
I bisected this here, with following result:
git bisect log
# bad: [3b931173c97b0d73f80ea55b72bb2966a246167f] UBUNTU: Ubuntu-5.0.0-33.35
# good: [5d5a6b36e94909962297fae609bff487de3cc43a] UBUNTU: Ubuntu-5.0.0-30.32
git bisect start '3b931173c97b0d73f80ea55b72bb2966a246167f'
'5d5a6b36e94909962297fae609bff487de3cc43a'
# good: [7b4f844b33969ab166800f8936beef153fab736e] net/ibmvnic: free reset
work
of removed device from queue
git bisect good 7b4f844b33969ab166800f8936beef153fab736e
# bad: [6c1fc88702a4f33886b44ce5b6f374893b95e369] arm64: tlb: Ensure we
execute
an ISB following walk cache invalidation
git bisect bad 6c1fc88702a4f33886b44ce5b6f374893b95e369
# good: [e627a027b54eccc95f9e374d69aead7f1498877b] loop: Add
LOOP_SET_DIRECT_IO
to compat ioctl
git bisect good e627a027b54eccc95f9e374d69aead7f1498877b
# good: [29919eff6333bc67ec580b454afdd8b49883df2f] libata/ahci: Drop PCS quirk
for Denverton and beyond
git bisect good 29919eff6333bc67ec580b454afdd8b49883df2f
# good: [cb44193f94af73928f8df049ffbb6b4a0be136ae] PM / devfreq: passive: fix
compiler warning
git bisect good cb44193f94af73928f8df049ffbb6b4a0be136ae
# good: [b1d479b27b26966aea931094b31864979d7f8102] scsi: implement .cleanup_rq
callback
git bisect good b1d479b27b26966aea931094b31864979d7f8102
# bad: [ec15813844b05d8cbd4352c65a20e57d16f9f936] media: sn9c20x: Add MSI
MS-1039 laptop to flip_dmi_table
git bisect bad ec15813844b05d8cbd4352c65a20e57d16f9f936
# good: [e83601f51a90d9739ced9ff42b6f202f8f802c72] parisc: Disable HP HSC-PCI
Cards to prevent kernel crash
git bisect good e83601f51a90d9739ced9ff42b6f202f8f802c72
# good: [6d393bdf3b3f4b629070329488d3c6a3e142602b] KVM: x86: set
ctxt->have_exception in x86_decode_insn()
git bisect good 6d393bdf3b3f4b629070329488d3c6a3e142602b
# bad: [208007519a7385a57b0c0a3c180142a521594876] KVM: x86: Manually calculate
reserved bits when loading PDPTRS
git bisect bad 208007519a7385a57b0c0a3c180142a521594876
# first bad commit: [208007519a7385a57b0c0a3c180142a521594876] KVM: x86:
Manually calculate reserved bits when loading PDPTRS
Which is:
KVM: x86: Manually calculate reserved bits when loading PDPTRS
BugLink: https://bugs.launchpad.net/bugs/1848367
commit 16cfacc8085782dab8e365979356ce1ca87fd6cc upstream.
Manually generate the PDPTR reserved bit mask when explicitly loading
PDPTRs. The reserved bits that are being tracked by the MMU reflect the
current paging mode, which is unlikely to be PAE paging in the vast
majority of flows that use load_pdptrs(), e.g. CR0 and CR4 emulation,
__set_sregs(), etc... This can cause KVM to incorrectly signal a bad
PDPTR, or more likely, miss a reserved bit check and subsequently fail
a VM-Enter due to a bad VMCS.GUEST_PDPTR.
Add a one off helper to generate the reserved bits instead of sharing
code across the MMU's calculations and the PDPTR emulation. The PDPTR
reserved bits are basically set in stone, and pushing a helper into
the MMU's calculation adds unnecessary complexity without improving
readability.
Oppurtunistically fix/update the comment for load_pdptrs().
Note, the buggy commit also introduced a deliberate functional change,
"Also remove bit 5-6 from rsvd_bits_mask per latest SDM.", which was
effectively (and correctly) reverted by commit cd9ae5fe47df ("KVM: x86:
Fix page-tables reserved bits"). A bit of SDM archaeology shows that
the SDM from late 2008 had a bug (likely a copy+paste error) where it
listed bits 6:5 as AVL and A for PDPTEs used for 4k entries but reserved
for 2mb entries. I.e. the SDM contradicted itself, and bits 6:5 are and
always have been reserved.
Fixes: 20c466b56168d ("KVM: Use rsvd_bits_mask in load_pdptrs()")
Cc: sta...@vger.kernel.org
Cc: Nadav Amit
Reported-by: Doug Reiland
Signed-off-by: Sean Christopherson
Reviewed-by: Peter Xu
Signed-off-by: Paolo Bonzini
Signed-off-by: Greg Kroah-Hartman
Signed-off-by: Kamal Mostafa
Signed-off-by: Kleber Sacilotto de Souza
This one is also included in the 4.19.
[Kernel-packages] [Bug 1552592] Re: KVM/QEMU live migration fails with Ubuntu wily kernel 4.2.0-30.35
** Tags removed: verification-needed-wily ** Tags added: verification-done-wily -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1552592 Title: KVM/QEMU live migration fails with Ubuntu wily kernel 4.2.0-30.35 Status in linux package in Ubuntu: Invalid Status in linux-lts-wily package in Ubuntu: In Progress Status in linux-lts-wily source package in Trusty: Triaged Status in linux source package in Wily: Fix Committed Bug description: commit 3f11933efc9ef55ecb2ac7e6d626e8d05a99a4b1 - "KVM: x86: expose MSR_TSC_AUX to userspace" from ubuntu-wily master git tree breaks KVM/QEMU live migration of host with a graphical user interface. == Reproduction == Install kernel with 3f11933efc9ef55ecb2ac7e6d626e8d05a99a4b1 included (Ubuntu-4.2.0-30.35) Start VM with GUI Start migration (no post copy, same migration as you'd in qemu 2.4) When migration has finished and you switch the VNC over to the migration target the VM running but frozen showing the last frame buffer, its also not ping-able (so you ssh session is dead if you used that) This is independent of (x86_64) Hardware and Guest OS used and also the QEMU cpu type (I used mainly kvm64). == Backport Solution == After a reverse bisect on the working 4.4 xenial kernel (where it's working with the patch from above) I found the missing part. While those two KVM patches listed above were backported/added another on was not, namely: 81b1b9ca6d5ca5f3ce91c0095402def657cf5db3 (from upstream linus) KVM: VMX: Fix host initiated access to guest MSR_TSC_AUX https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=81b1b9ca6d5ca5f3ce91c0095402def657cf5db3 As there was a API change I made the rather trivial backport to the 4.2 kernel and tested it successfully. The backported patch is attached to this report. Some further information and earlier posts from myself about this issue by can be found here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1540532 https://lists.ubuntu.com/archives/kernel-team/2016-March/072356.html To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1552592/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1540532] Re: Wily update to v4.2.8-ckt3 stable release
** Attachment added: "backtrace.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1540532/+attachment/4581592/+files/backtrace.log -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1540532 Title: Wily update to v4.2.8-ckt3 stable release Status in linux package in Ubuntu: Confirmed Status in linux source package in Wily: Fix Released Bug description: SRU Justification Impact: The upstream process for stable tree updates is quite similar in scope to the Ubuntu SRU process, e.g., each patch has to demonstrably fix a bug, and each patch is vetted by upstream by originating either directly from a mainline/stable Linux tree or a minimally backported form of that patch. The v4.2.8-ckt3 upstream stable patch set is now available. It should be included in the Ubuntu kernel as well. git://kernel.ubuntu.com/ubuntu/linux.git TEST CASE: TBD The following patches from the v4.2.8-ckt3 stable release shall be applied: Linux 4.2.8-ckt3 ipv6: update skb->csum when CE mark is propagated vxlan: fix test which detect duplicate vxlan iface batman-adv: Drop immediate batadv_hard_iface free function net: bpf: reject invalid shifts phonet: properly unshare skbs in phonet_rcv() net: preserve IP control block during GSO segmentation udp: disallow UFO for sockets with SO_NO_CHECK option sched,cls_flower: set key address type when present tcp_yeah: don't set ssthresh below 2 bridge: Only call /sbin/bridge-stp for the initial network namespace unix: properly account for FDs passed over unix sockets af_unix: Fix splice-bind deadlock connector: bump skb->users before callback invocation sctp: sctp should release assoc when sctp_make_abort_user return NULL in sctp_close net: cdc_ncm: avoid changing RX/TX buffers on MTU changes veth: don’t modify ip_summed; doing so treats packets with bad checksums as good. NFS: Ensure we revalidate attributes before using execute_ok() NFSv4: Don't perform cached access checks before we've OPENed the file net/mlx4: Remove unused macro IB/mlx4: Initialize hop_limit when creating address handle mmc: debugfs: correct wrong voltage value team: Replace rcu_read_lock with a mutex in team_vlan_rx_kill_vid ARM: dts: armadillo800eva Correct extal1 frequency to 24 MHz printk: help pr_debug and pr_devel to optimize out arguments batman-adv: Drop immediate orig_node free function batman-adv: Drop immediate neigh_ifinfo free function batman-adv: Drop immediate batadv_neigh_node free function batman-adv: Drop immediate batadv_orig_ifinfo free function batman-adv: Avoid recursive call_rcu for batadv_nc_node batman-adv: Avoid recursive call_rcu for batadv_bla_claim bridge: fix lockdep addr_list_lock false positive splat btrfs: initialize the seq counter in struct btrfs_device Btrfs: clean up an error code in btrfs_init_space_info() include/linux/memblock.h: fix ordering of 'flags' argument in comments vmstat: make vmstat_updater deferrable again and shut down on idle net: tcp_memcontrol: properly detect ancestor socket pressure mmc: sd: limit SD card power limit according to cards capabilities kbuild: Demote 'sign-compare' warning to W=2 bonding: Prevent IPv6 link local address on enslaved devices ipv6: tcp: add rcu locking in tcp_v6_send_synack() net: sctp: prevent writes to cookie_hmac_alg from accessing invalid memory um: Fix build error and kconfig for i386 m68k/atari, m68k/sun3: Fix SCSI platform device registration when driver is modular phy: micrel: Fix finding PHY properties in MAC node for KSZ9031. target: Fix a memory leak in target_dev_lba_map_store() firmware: actually return NULL on failed request_firmware_nowait() power: test_power: correctly handle empty writes perf/x86: fix PEBS issues on Intel Atom/Core2 perf/x86: Fix filter_events() bug with event mappings kconfig: return 'false' instead of 'no' in bool function sysrq: Fix warning in sysrq generated crash. x86/LDT: Print the real LDT base address mmc: sdhci: restore behavior when setting VDD via external regulator pinctrl: bcm2835: Fix memory leak in error path ALSA: fm801: detect FM-only card earlier ALSA: fm801: propagate TUNER_ONLY bit when autodetected ARM: imx: select SRC for i.MX7 ALSA: fm801: explicitly free IRQ line tpm_tis: Use devm_free_irq not free_irq Drivers: hv: utils: use memdup_user in hvt_op_write Drivers: hv: util: catch allocation errors mtd: nand: denali: add missing nand_release() call in denali_remove() Revert "ACPI / LPSS: allow to use specific PM domain during ->probe()" mac80211: fix mgmt-tx abort cookie and leak mtd: nand: fix ONFI parameter page layout ASoC: tegra_alc5632: check return value ath9k_htc: check for underflow in ath9k_htc_rx_msg() PCI/MSI: Initiali
[Kernel-packages] [Bug 1540532] Re: Wily update to v4.2.8-ckt3 stable release
Hi, commit 3f11933efc9ef55ecb2ac7e6d626e8d05a99a4b1 - KVM: x86: expose MSR_TSC_AUX to userspace breaks KVM/QEMU live migration of host with a graphical user interface. == Software Versions: == Kenel: this one, namely: Ubuntu-4.2.0-30.35 kvm-qemu: 2.5.0 == Reproduction == Install kernel with 3f11933efc9ef55ecb2ac7e6d626e8d05a99a4b1 included (Ubuntu-4.2.0-30.35) Start VM with GUI Start migration (no post copy, same migration as you'd in qemu 2.4) When migration has finished snf you switch the vnc over to the migration target the VM running but frozen showing the last frame buffer, its also not ping-able == VMs tested == Linux Mint Live ISO elementaryOS Live ISO Windows 7 VMs tested with minimal configuration. No disks on live cds, no network (but also with both enabled tested, same result) == Hardware Used == Two Nested VMs on an Intel(R) Core(TM) i7-4790K CPU @ 4.00GHz Two physical supermicro servers with Intel(R) Xeon(R) CPU E5-2620 v3 @ 2.40GHz NFS for storage (for the live ISOs and diskes) == If I revert 3f11933efc9ef55ecb2ac7e6d626e8d05a99a4b1 and install the kernel on _both_ hosts the freeze does not happen anymore. But this commit is also included in the ubuntu-xenial kernel (master and master-next tested) and there I have no such problem, thus its a side effect from some other (missing?) commit. I'm currently trying to break the problem further down and try find the real culprit (or get closer to it). Backtrace of the hung Linux Mint ISO follows in next comment. ** Attachment added: "Log of the git bisect made" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1540532/+attachment/4581591/+files/bisect.log -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1540532 Title: Wily update to v4.2.8-ckt3 stable release Status in linux package in Ubuntu: Confirmed Status in linux source package in Wily: Fix Released Bug description: SRU Justification Impact: The upstream process for stable tree updates is quite similar in scope to the Ubuntu SRU process, e.g., each patch has to demonstrably fix a bug, and each patch is vetted by upstream by originating either directly from a mainline/stable Linux tree or a minimally backported form of that patch. The v4.2.8-ckt3 upstream stable patch set is now available. It should be included in the Ubuntu kernel as well. git://kernel.ubuntu.com/ubuntu/linux.git TEST CASE: TBD The following patches from the v4.2.8-ckt3 stable release shall be applied: Linux 4.2.8-ckt3 ipv6: update skb->csum when CE mark is propagated vxlan: fix test which detect duplicate vxlan iface batman-adv: Drop immediate batadv_hard_iface free function net: bpf: reject invalid shifts phonet: properly unshare skbs in phonet_rcv() net: preserve IP control block during GSO segmentation udp: disallow UFO for sockets with SO_NO_CHECK option sched,cls_flower: set key address type when present tcp_yeah: don't set ssthresh below 2 bridge: Only call /sbin/bridge-stp for the initial network namespace unix: properly account for FDs passed over unix sockets af_unix: Fix splice-bind deadlock connector: bump skb->users before callback invocation sctp: sctp should release assoc when sctp_make_abort_user return NULL in sctp_close net: cdc_ncm: avoid changing RX/TX buffers on MTU changes veth: don’t modify ip_summed; doing so treats packets with bad checksums as good. NFS: Ensure we revalidate attributes before using execute_ok() NFSv4: Don't perform cached access checks before we've OPENed the file net/mlx4: Remove unused macro IB/mlx4: Initialize hop_limit when creating address handle mmc: debugfs: correct wrong voltage value team: Replace rcu_read_lock with a mutex in team_vlan_rx_kill_vid ARM: dts: armadillo800eva Correct extal1 frequency to 24 MHz printk: help pr_debug and pr_devel to optimize out arguments batman-adv: Drop immediate orig_node free function batman-adv: Drop immediate neigh_ifinfo free function batman-adv: Drop immediate batadv_neigh_node free function batman-adv: Drop immediate batadv_orig_ifinfo free function batman-adv: Avoid recursive call_rcu for batadv_nc_node batman-adv: Avoid recursive call_rcu for batadv_bla_claim bridge: fix lockdep addr_list_lock false positive splat btrfs: initialize the seq counter in struct btrfs_device Btrfs: clean up an error code in btrfs_init_space_info() include/linux/memblock.h: fix ordering of 'flags' argument in comments vmstat: make vmstat_updater deferrable again and shut down on idle net: tcp_memcontrol: properly detect ancestor socket pressure mmc: sd: limit SD card power limit according to cards capabilities kbuild: Demote 'sign-compare' warning to W=2 bonding: Prevent IPv6 link local address on enslaved devices ipv6: tcp: add rcu l
[Kernel-packages] [Bug 1540532] Re: Wily update to v4.2.8-ckt3 stable release
Follow up, I tried it with a Ubuntu Server and Alpine Linux without any gui and it frozed also, same backtrace. Sorry I could swear Alpine Linux did not froze when I first tested it in a nested VM. ** Attachment added: "backtrace-qemu-migration-hang.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1540532/+attachment/4581648/+files/backtrace-qemu-migration-hang.log -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1540532 Title: Wily update to v4.2.8-ckt3 stable release Status in linux package in Ubuntu: Confirmed Status in linux source package in Wily: Fix Released Bug description: SRU Justification Impact: The upstream process for stable tree updates is quite similar in scope to the Ubuntu SRU process, e.g., each patch has to demonstrably fix a bug, and each patch is vetted by upstream by originating either directly from a mainline/stable Linux tree or a minimally backported form of that patch. The v4.2.8-ckt3 upstream stable patch set is now available. It should be included in the Ubuntu kernel as well. git://kernel.ubuntu.com/ubuntu/linux.git TEST CASE: TBD The following patches from the v4.2.8-ckt3 stable release shall be applied: Linux 4.2.8-ckt3 ipv6: update skb->csum when CE mark is propagated vxlan: fix test which detect duplicate vxlan iface batman-adv: Drop immediate batadv_hard_iface free function net: bpf: reject invalid shifts phonet: properly unshare skbs in phonet_rcv() net: preserve IP control block during GSO segmentation udp: disallow UFO for sockets with SO_NO_CHECK option sched,cls_flower: set key address type when present tcp_yeah: don't set ssthresh below 2 bridge: Only call /sbin/bridge-stp for the initial network namespace unix: properly account for FDs passed over unix sockets af_unix: Fix splice-bind deadlock connector: bump skb->users before callback invocation sctp: sctp should release assoc when sctp_make_abort_user return NULL in sctp_close net: cdc_ncm: avoid changing RX/TX buffers on MTU changes veth: don’t modify ip_summed; doing so treats packets with bad checksums as good. NFS: Ensure we revalidate attributes before using execute_ok() NFSv4: Don't perform cached access checks before we've OPENed the file net/mlx4: Remove unused macro IB/mlx4: Initialize hop_limit when creating address handle mmc: debugfs: correct wrong voltage value team: Replace rcu_read_lock with a mutex in team_vlan_rx_kill_vid ARM: dts: armadillo800eva Correct extal1 frequency to 24 MHz printk: help pr_debug and pr_devel to optimize out arguments batman-adv: Drop immediate orig_node free function batman-adv: Drop immediate neigh_ifinfo free function batman-adv: Drop immediate batadv_neigh_node free function batman-adv: Drop immediate batadv_orig_ifinfo free function batman-adv: Avoid recursive call_rcu for batadv_nc_node batman-adv: Avoid recursive call_rcu for batadv_bla_claim bridge: fix lockdep addr_list_lock false positive splat btrfs: initialize the seq counter in struct btrfs_device Btrfs: clean up an error code in btrfs_init_space_info() include/linux/memblock.h: fix ordering of 'flags' argument in comments vmstat: make vmstat_updater deferrable again and shut down on idle net: tcp_memcontrol: properly detect ancestor socket pressure mmc: sd: limit SD card power limit according to cards capabilities kbuild: Demote 'sign-compare' warning to W=2 bonding: Prevent IPv6 link local address on enslaved devices ipv6: tcp: add rcu locking in tcp_v6_send_synack() net: sctp: prevent writes to cookie_hmac_alg from accessing invalid memory um: Fix build error and kconfig for i386 m68k/atari, m68k/sun3: Fix SCSI platform device registration when driver is modular phy: micrel: Fix finding PHY properties in MAC node for KSZ9031. target: Fix a memory leak in target_dev_lba_map_store() firmware: actually return NULL on failed request_firmware_nowait() power: test_power: correctly handle empty writes perf/x86: fix PEBS issues on Intel Atom/Core2 perf/x86: Fix filter_events() bug with event mappings kconfig: return 'false' instead of 'no' in bool function sysrq: Fix warning in sysrq generated crash. x86/LDT: Print the real LDT base address mmc: sdhci: restore behavior when setting VDD via external regulator pinctrl: bcm2835: Fix memory leak in error path ALSA: fm801: detect FM-only card earlier ALSA: fm801: propagate TUNER_ONLY bit when autodetected ARM: imx: select SRC for i.MX7 ALSA: fm801: explicitly free IRQ line tpm_tis: Use devm_free_irq not free_irq Drivers: hv: utils: use memdup_user in hvt_op_write Drivers: hv: util: catch allocation errors mtd: nand: denali: add missing nand_release() call in denali_remove() Revert "ACPI / LPSS: allow to use spe
[Kernel-packages] [Bug 1540532] Re: Wily update to v4.2.8-ckt3 stable release
Soo, after some digging I found the root cause, while those two KVM patches listed above were backported/added another on was not, namely: 81b1b9ca6d5ca5f3ce91c0095402def657cf5db3 KVM: VMX: Fix host initiated access to guest MSR_TSC_AUX I backported it to this Ubuntu-4.2.0-30.35 kernel and tested it successfully. ** Patch added: "0001-KVM-VMX-Fix-host-initiated-access-to-guest-MSR_TSC_A.patch" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1540532/+attachment/4581866/+files/0001-KVM-VMX-Fix-host-initiated-access-to-guest-MSR_TSC_A.patch -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1540532 Title: Wily update to v4.2.8-ckt3 stable release Status in linux package in Ubuntu: Confirmed Status in linux source package in Wily: Fix Released Bug description: SRU Justification Impact: The upstream process for stable tree updates is quite similar in scope to the Ubuntu SRU process, e.g., each patch has to demonstrably fix a bug, and each patch is vetted by upstream by originating either directly from a mainline/stable Linux tree or a minimally backported form of that patch. The v4.2.8-ckt3 upstream stable patch set is now available. It should be included in the Ubuntu kernel as well. git://kernel.ubuntu.com/ubuntu/linux.git TEST CASE: TBD The following patches from the v4.2.8-ckt3 stable release shall be applied: Linux 4.2.8-ckt3 ipv6: update skb->csum when CE mark is propagated vxlan: fix test which detect duplicate vxlan iface batman-adv: Drop immediate batadv_hard_iface free function net: bpf: reject invalid shifts phonet: properly unshare skbs in phonet_rcv() net: preserve IP control block during GSO segmentation udp: disallow UFO for sockets with SO_NO_CHECK option sched,cls_flower: set key address type when present tcp_yeah: don't set ssthresh below 2 bridge: Only call /sbin/bridge-stp for the initial network namespace unix: properly account for FDs passed over unix sockets af_unix: Fix splice-bind deadlock connector: bump skb->users before callback invocation sctp: sctp should release assoc when sctp_make_abort_user return NULL in sctp_close net: cdc_ncm: avoid changing RX/TX buffers on MTU changes veth: don’t modify ip_summed; doing so treats packets with bad checksums as good. NFS: Ensure we revalidate attributes before using execute_ok() NFSv4: Don't perform cached access checks before we've OPENed the file net/mlx4: Remove unused macro IB/mlx4: Initialize hop_limit when creating address handle mmc: debugfs: correct wrong voltage value team: Replace rcu_read_lock with a mutex in team_vlan_rx_kill_vid ARM: dts: armadillo800eva Correct extal1 frequency to 24 MHz printk: help pr_debug and pr_devel to optimize out arguments batman-adv: Drop immediate orig_node free function batman-adv: Drop immediate neigh_ifinfo free function batman-adv: Drop immediate batadv_neigh_node free function batman-adv: Drop immediate batadv_orig_ifinfo free function batman-adv: Avoid recursive call_rcu for batadv_nc_node batman-adv: Avoid recursive call_rcu for batadv_bla_claim bridge: fix lockdep addr_list_lock false positive splat btrfs: initialize the seq counter in struct btrfs_device Btrfs: clean up an error code in btrfs_init_space_info() include/linux/memblock.h: fix ordering of 'flags' argument in comments vmstat: make vmstat_updater deferrable again and shut down on idle net: tcp_memcontrol: properly detect ancestor socket pressure mmc: sd: limit SD card power limit according to cards capabilities kbuild: Demote 'sign-compare' warning to W=2 bonding: Prevent IPv6 link local address on enslaved devices ipv6: tcp: add rcu locking in tcp_v6_send_synack() net: sctp: prevent writes to cookie_hmac_alg from accessing invalid memory um: Fix build error and kconfig for i386 m68k/atari, m68k/sun3: Fix SCSI platform device registration when driver is modular phy: micrel: Fix finding PHY properties in MAC node for KSZ9031. target: Fix a memory leak in target_dev_lba_map_store() firmware: actually return NULL on failed request_firmware_nowait() power: test_power: correctly handle empty writes perf/x86: fix PEBS issues on Intel Atom/Core2 perf/x86: Fix filter_events() bug with event mappings kconfig: return 'false' instead of 'no' in bool function sysrq: Fix warning in sysrq generated crash. x86/LDT: Print the real LDT base address mmc: sdhci: restore behavior when setting VDD via external regulator pinctrl: bcm2835: Fix memory leak in error path ALSA: fm801: detect FM-only card earlier ALSA: fm801: propagate TUNER_ONLY bit when autodetected ARM: imx: select SRC for i.MX7 ALSA: fm801: explicitly free IRQ line tpm_tis: Use devm_free_irq not free_irq Drivers: hv: utils: use memdup_us
[Kernel-packages] [Bug 1540532] Re: Wily update to v4.2.8-ckt3 stable release
For easy access, upstream patch is here (and also already included in ubuntu-xenial 4.4 kernel (git master repo)) https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=81b1b9ca6d5ca5f3ce91c0095402def657cf5db3 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1540532 Title: Wily update to v4.2.8-ckt3 stable release Status in linux package in Ubuntu: Confirmed Status in linux source package in Wily: Fix Released Bug description: SRU Justification Impact: The upstream process for stable tree updates is quite similar in scope to the Ubuntu SRU process, e.g., each patch has to demonstrably fix a bug, and each patch is vetted by upstream by originating either directly from a mainline/stable Linux tree or a minimally backported form of that patch. The v4.2.8-ckt3 upstream stable patch set is now available. It should be included in the Ubuntu kernel as well. git://kernel.ubuntu.com/ubuntu/linux.git TEST CASE: TBD The following patches from the v4.2.8-ckt3 stable release shall be applied: Linux 4.2.8-ckt3 ipv6: update skb->csum when CE mark is propagated vxlan: fix test which detect duplicate vxlan iface batman-adv: Drop immediate batadv_hard_iface free function net: bpf: reject invalid shifts phonet: properly unshare skbs in phonet_rcv() net: preserve IP control block during GSO segmentation udp: disallow UFO for sockets with SO_NO_CHECK option sched,cls_flower: set key address type when present tcp_yeah: don't set ssthresh below 2 bridge: Only call /sbin/bridge-stp for the initial network namespace unix: properly account for FDs passed over unix sockets af_unix: Fix splice-bind deadlock connector: bump skb->users before callback invocation sctp: sctp should release assoc when sctp_make_abort_user return NULL in sctp_close net: cdc_ncm: avoid changing RX/TX buffers on MTU changes veth: don’t modify ip_summed; doing so treats packets with bad checksums as good. NFS: Ensure we revalidate attributes before using execute_ok() NFSv4: Don't perform cached access checks before we've OPENed the file net/mlx4: Remove unused macro IB/mlx4: Initialize hop_limit when creating address handle mmc: debugfs: correct wrong voltage value team: Replace rcu_read_lock with a mutex in team_vlan_rx_kill_vid ARM: dts: armadillo800eva Correct extal1 frequency to 24 MHz printk: help pr_debug and pr_devel to optimize out arguments batman-adv: Drop immediate orig_node free function batman-adv: Drop immediate neigh_ifinfo free function batman-adv: Drop immediate batadv_neigh_node free function batman-adv: Drop immediate batadv_orig_ifinfo free function batman-adv: Avoid recursive call_rcu for batadv_nc_node batman-adv: Avoid recursive call_rcu for batadv_bla_claim bridge: fix lockdep addr_list_lock false positive splat btrfs: initialize the seq counter in struct btrfs_device Btrfs: clean up an error code in btrfs_init_space_info() include/linux/memblock.h: fix ordering of 'flags' argument in comments vmstat: make vmstat_updater deferrable again and shut down on idle net: tcp_memcontrol: properly detect ancestor socket pressure mmc: sd: limit SD card power limit according to cards capabilities kbuild: Demote 'sign-compare' warning to W=2 bonding: Prevent IPv6 link local address on enslaved devices ipv6: tcp: add rcu locking in tcp_v6_send_synack() net: sctp: prevent writes to cookie_hmac_alg from accessing invalid memory um: Fix build error and kconfig for i386 m68k/atari, m68k/sun3: Fix SCSI platform device registration when driver is modular phy: micrel: Fix finding PHY properties in MAC node for KSZ9031. target: Fix a memory leak in target_dev_lba_map_store() firmware: actually return NULL on failed request_firmware_nowait() power: test_power: correctly handle empty writes perf/x86: fix PEBS issues on Intel Atom/Core2 perf/x86: Fix filter_events() bug with event mappings kconfig: return 'false' instead of 'no' in bool function sysrq: Fix warning in sysrq generated crash. x86/LDT: Print the real LDT base address mmc: sdhci: restore behavior when setting VDD via external regulator pinctrl: bcm2835: Fix memory leak in error path ALSA: fm801: detect FM-only card earlier ALSA: fm801: propagate TUNER_ONLY bit when autodetected ARM: imx: select SRC for i.MX7 ALSA: fm801: explicitly free IRQ line tpm_tis: Use devm_free_irq not free_irq Drivers: hv: utils: use memdup_user in hvt_op_write Drivers: hv: util: catch allocation errors mtd: nand: denali: add missing nand_release() call in denali_remove() Revert "ACPI / LPSS: allow to use specific PM domain during ->probe()" mac80211: fix mgmt-tx abort cookie and leak mtd: nand: fix ONFI parameter page layout ASoC: tegra_alc5632: check
[Kernel-packages] [Bug 1552592] [NEW] KVM/QEMU live migration fails with Ubuntu wily kernel 4.2.0-30.35
Public bug reported: commit 3f11933efc9ef55ecb2ac7e6d626e8d05a99a4b1 - "KVM: x86: expose MSR_TSC_AUX to userspace" from ubuntu-wily master git tree breaks KVM/QEMU live migration of host with a graphical user interface. == Reproduction == Install kernel with 3f11933efc9ef55ecb2ac7e6d626e8d05a99a4b1 included (Ubuntu-4.2.0-30.35) Start VM with GUI Start migration (no post copy, same migration as you'd in qemu 2.4) When migration has finished and you switch the VNC over to the migration target the VM running but frozen showing the last frame buffer, its also not ping-able (so you ssh session is dead if you used that) This is independent of (x86_64) Hardware and Guest OS used and also the QEMU cpu type (I used mainly kvm64). == Backport Solution == After a reverse bisect on the working 4.4 xenial kernel (where it's working with the patch from above) I found the missing part. While those two KVM patches listed above were backported/added another on was not, namely: 81b1b9ca6d5ca5f3ce91c0095402def657cf5db3 (from upstream linus) KVM: VMX: Fix host initiated access to guest MSR_TSC_AUX https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=81b1b9ca6d5ca5f3ce91c0095402def657cf5db3 As there was a API change I made the rather trivial backport to the 4.2 kernel and tested it successfully. The backported patch is attached to this report. Some further information and earlier posts from myself about this issue by can be found here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1540532 https://lists.ubuntu.com/archives/kernel-team/2016-March/072356.html ** Affects: linux (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1552592 Title: KVM/QEMU live migration fails with Ubuntu wily kernel 4.2.0-30.35 Status in linux package in Ubuntu: New Bug description: commit 3f11933efc9ef55ecb2ac7e6d626e8d05a99a4b1 - "KVM: x86: expose MSR_TSC_AUX to userspace" from ubuntu-wily master git tree breaks KVM/QEMU live migration of host with a graphical user interface. == Reproduction == Install kernel with 3f11933efc9ef55ecb2ac7e6d626e8d05a99a4b1 included (Ubuntu-4.2.0-30.35) Start VM with GUI Start migration (no post copy, same migration as you'd in qemu 2.4) When migration has finished and you switch the VNC over to the migration target the VM running but frozen showing the last frame buffer, its also not ping-able (so you ssh session is dead if you used that) This is independent of (x86_64) Hardware and Guest OS used and also the QEMU cpu type (I used mainly kvm64). == Backport Solution == After a reverse bisect on the working 4.4 xenial kernel (where it's working with the patch from above) I found the missing part. While those two KVM patches listed above were backported/added another on was not, namely: 81b1b9ca6d5ca5f3ce91c0095402def657cf5db3 (from upstream linus) KVM: VMX: Fix host initiated access to guest MSR_TSC_AUX https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=81b1b9ca6d5ca5f3ce91c0095402def657cf5db3 As there was a API change I made the rather trivial backport to the 4.2 kernel and tested it successfully. The backported patch is attached to this report. Some further information and earlier posts from myself about this issue by can be found here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1540532 https://lists.ubuntu.com/archives/kernel-team/2016-March/072356.html To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1552592/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1552592] Re: KVM/QEMU live migration fails with Ubuntu wily kernel 4.2.0-30.35
** Patch added: "0001-KVM-VMX-Fix-host-initiated-access-to-guest-MSR_TSC_A.patch" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1552592/+attachment/4587316/+files/0001-KVM-VMX-Fix-host-initiated-access-to-guest-MSR_TSC_A.patch -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1552592 Title: KVM/QEMU live migration fails with Ubuntu wily kernel 4.2.0-30.35 Status in linux package in Ubuntu: New Bug description: commit 3f11933efc9ef55ecb2ac7e6d626e8d05a99a4b1 - "KVM: x86: expose MSR_TSC_AUX to userspace" from ubuntu-wily master git tree breaks KVM/QEMU live migration of host with a graphical user interface. == Reproduction == Install kernel with 3f11933efc9ef55ecb2ac7e6d626e8d05a99a4b1 included (Ubuntu-4.2.0-30.35) Start VM with GUI Start migration (no post copy, same migration as you'd in qemu 2.4) When migration has finished and you switch the VNC over to the migration target the VM running but frozen showing the last frame buffer, its also not ping-able (so you ssh session is dead if you used that) This is independent of (x86_64) Hardware and Guest OS used and also the QEMU cpu type (I used mainly kvm64). == Backport Solution == After a reverse bisect on the working 4.4 xenial kernel (where it's working with the patch from above) I found the missing part. While those two KVM patches listed above were backported/added another on was not, namely: 81b1b9ca6d5ca5f3ce91c0095402def657cf5db3 (from upstream linus) KVM: VMX: Fix host initiated access to guest MSR_TSC_AUX https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=81b1b9ca6d5ca5f3ce91c0095402def657cf5db3 As there was a API change I made the rather trivial backport to the 4.2 kernel and tested it successfully. The backported patch is attached to this report. Some further information and earlier posts from myself about this issue by can be found here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1540532 https://lists.ubuntu.com/archives/kernel-team/2016-March/072356.html To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1552592/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1552592] Re: KVM/QEMU live migration fails with Ubuntu wily kernel 4.2.0-30.35
> This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run: As this cannot be tracked through the hosts (log) and I posted this bug report here at a request at the kernel ML from Kamal to track this issue (and the patch is already queued and ACKed by some kernel team members) I think it does not bring any additional value to add those logs here and I'm currently not easily able to do so as I'm off work. But if needed I can naturally fulfill the request. ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1552592 Title: KVM/QEMU live migration fails with Ubuntu wily kernel 4.2.0-30.35 Status in linux package in Ubuntu: Confirmed Bug description: commit 3f11933efc9ef55ecb2ac7e6d626e8d05a99a4b1 - "KVM: x86: expose MSR_TSC_AUX to userspace" from ubuntu-wily master git tree breaks KVM/QEMU live migration of host with a graphical user interface. == Reproduction == Install kernel with 3f11933efc9ef55ecb2ac7e6d626e8d05a99a4b1 included (Ubuntu-4.2.0-30.35) Start VM with GUI Start migration (no post copy, same migration as you'd in qemu 2.4) When migration has finished and you switch the VNC over to the migration target the VM running but frozen showing the last frame buffer, its also not ping-able (so you ssh session is dead if you used that) This is independent of (x86_64) Hardware and Guest OS used and also the QEMU cpu type (I used mainly kvm64). == Backport Solution == After a reverse bisect on the working 4.4 xenial kernel (where it's working with the patch from above) I found the missing part. While those two KVM patches listed above were backported/added another on was not, namely: 81b1b9ca6d5ca5f3ce91c0095402def657cf5db3 (from upstream linus) KVM: VMX: Fix host initiated access to guest MSR_TSC_AUX https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=81b1b9ca6d5ca5f3ce91c0095402def657cf5db3 As there was a API change I made the rather trivial backport to the 4.2 kernel and tested it successfully. The backported patch is attached to this report. Some further information and earlier posts from myself about this issue by can be found here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1540532 https://lists.ubuntu.com/archives/kernel-team/2016-March/072356.html To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1552592/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 2037214] Re: evict_inodes inode xxx, i_count = 1, was skipped!
This came indeed in via a cherry-pick made by Ubuntu [0], that was an
early attempt to fix a bug that was actually present in the ceph layer,
as confirmed by the original patch author[1], and fixed actually there
now [2].
[0]: https://git.launchpad.net/~ubuntu-
kernel/ubuntu/+source/linux/+git/mantic/commit/?h=master-
prep&id=a53dba9297be9597eac7b17738723bd44bac97ea
[1]:
https://lore.kernel.org/all/8443166a-7182--a489-14b5dab20...@redhat.com/
[2]: https://patchwork.kernel.org/project/ceph-
devel/patch/20221221093031.132792-1-xiu...@redhat.com/
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https://bugs.launchpad.net/bugs/2037214
Title:
evict_inodes inode xxx, i_count = 1, was skipped!
Status in linux package in Ubuntu:
Confirmed
Status in linux-oem-6.5 package in Ubuntu:
Confirmed
Bug description:
Hi,
during boot the kernel logs the following messages:
# dmesg | grep evict_inodes
[ 12.784805] evict_inodes inode d69da69b, i_count = 1, was skipped!
[ 12.784810] evict_inodes inode 8b9a7c55, i_count = 1, was skipped!
[ 12.784811] evict_inodes inode 8ff8e64c, i_count = 1, was skipped!
[ 12.784811] evict_inodes inode 194d080e, i_count = 1, was skipped!
[ 12.784812] evict_inodes inode 09b77b7b, i_count = 1, was skipped!
[ 12.811217] evict_inodes inode ec873c71, i_count = 1, was skipped!
[ 12.811222] evict_inodes inode 72bf501d, i_count = 1, was skipped!
[ 12.811223] evict_inodes inode b42b829a, i_count = 1, was skipped!
[ 12.811224] evict_inodes inode c7c5b4ef, i_count = 1, was skipped!
[ 13.412667] evict_inodes inode 61a23a39, i_count = 1, was skipped!
[ 13.412671] evict_inodes inode b42b829a, i_count = 1, was skipped!
[ 13.412671] evict_inodes inode 72bf501d, i_count = 1, was skipped!
[ 13.412672] evict_inodes inode c7c5b4ef, i_count = 1, was skipped!
[ 13.412673] evict_inodes inode ec873c71, i_count = 1, was skipped!
Those messages are not displayed when I boot my system with a mainline Linux
kernel.
Moreover, in the mainline Linux source code, I do not find the lines where
such a message could be printed.
Therefore, those messages are probably caused by an Ubuntu patch.
ProblemType: Bug
DistroRelease: Ubuntu 23.10
Package: linux-image-6.5.0-5-generic 6.5.0-5.5
ProcVersionSignature: Ubuntu 6.5.0-5.5-generic 6.5.0
Uname: Linux 6.5.0-5-generic x86_64
ApportVersion: 2.27.0-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
USERPID ACCESS COMMAND
/dev/snd/controlC0: bonnaudl 4827 F wireplumber
/dev/snd/seq:bonnaudl 4808 F pipewire
CasperMD5CheckResult: unknown
CurrentDesktop: KDE
Date: Sun Sep 24 14:39:10 2023
MachineType: {report['dmi.sys.vendor']} {report['dmi.product.name']}
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.5.0-5-generic
root=/dev/mapper/MonVolume2-UbuntuRacine ro vsyscall=none security=apparmor
tpm_tis.interrupts=0 preempt=full split_lock_detect=off quiet splash
vt.handoff=7
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-6.5.0-5-generic N/A
linux-backports-modules-6.5.0-5-generic N/A
linux-firmware 20230919.git3672ccab-0ubuntu2
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/26/2022
dmi.bios.release: 7.16
dmi.bios.vendor: INSYDE Corp.
dmi.bios.version: 1.07.16NRTR4
dmi.board.asset.tag: Tag 12345
dmi.board.name: NS50_70MU
dmi.board.vendor: TUXEDO
dmi.board.version: Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Notebook
dmi.chassis.version: N/A
dmi.ec.firmware.release: 7.7
dmi.modalias:
dmi:bvnINSYDECorp.:bvr1.07.16NRTR4:bd05/26/2022:br7.16:efr7.7:svnTUXEDO:pnTUXEDOInfinityBookS15Gen6:pvrNotApplicable:rvnTUXEDO:rnNS50_70MU:rvrApplicable:cvnNotebook:ct10:cvrN/A:skuNotApplicable:
dmi.product.family: Not Applicable
dmi.product.name: TUXEDO InfinityBook S 15 Gen6
dmi.product.sku: Not Applicable
dmi.product.version: Not Applicable
dmi.sys.vendor: TUXEDO
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[Kernel-packages] [Bug 2036675] Re: 5.15.0-85 live migration regression
FYI, we solved a similar sounding issue by clearing the PKRU bit if it was set in the to-be-restored XSAVE blob, but not available in the current vCPU feature flags: https://git.proxmox.com/?p=pve- kernel.git;a=blob;f=patches/kernel/0008-kvm-xsave-set-mask-out-PKRU-bit- in-xfeatures-if- vCPU.patch;h=dda75b87de9a18ecb3a51d01d487727db77825e7;hb=1559d22f3510d8532aa756fe5d69c74c76211e1e -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2036675 Title: 5.15.0-85 live migration regression Status in linux package in Ubuntu: Incomplete Status in linux source package in Jammy: Fix Committed Bug description: Fixes added for LP 2032164 [0] to resolve an issue in live migration have unfortunately introduced a regression, causing a previously working live migration pattern to fail when tested with the 5.15.0-85 kernel from -proposed. Specifically, live migration from a PKRU-enabled host running a kernel older than 5.15.0-85 to a host running the 5.15.0-85 kernel will fail. The destination can be either with or without PKRU; both cases fail, although in different ways (one hangs, the other fails due to a PCID flag issue). The commits in question are commit fa9225d64f215e8109de10f6b6c7a08f033d0ec0 Author: Dr. David Alan Gilbert Date: Mon Aug 21 14:47:28 2023 +0800 KVM: x86: Always enable legacy FP/SSE in allowed user XFEATURES commit 27a189b881278c8ad9c16b0ee05668d724352733 Author: Leonardo Bras Date: Mon Aug 21 14:47:27 2023 +0800 x86/kvm/fpu: Limit guest user_xfeatures to supported bits of XCR0 [0] https://bugs.launchpad.net/bugs/2032164 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2036675/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
