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 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: Initialize MSI capability for all architectures ASoC: Intel: pass correct parameter in sst_alloc_stream_mrfld() MAINTAINERS: gpio-brcmstb: Remove stray '>' clk: st: avoid uninitialized variable use clk: xgene: Fix divider with non-zero shift value SCSI: initio: remove duplicate module device table [media] lirc_imon: do not leave imon_probe() with mutex held [media] rc: allow rc modules to be loaded if rc-main is not a module drm/i915: On fb alloc failure, unref gem object where it gets refed ideapad-laptop: Add Lenovo Yoga 700 to no_hw_rfkill dmi list MIPS: Fix some missing CONFIG_CPU_MIPSR6 #ifdefs MAINTAINERS: return arch/sh to maintained state, with new maintainers make sure that freeing shmem fast symlinks is RCU-delayed pNFS/flexfiles: Fix an XDR encoding bug in layoutreturn ocfs2: NFS hangs in __ocfs2_cluster_lock due to race with ocfs2_unblock_lock MIPS: hpet: Choose a safe value for the ETIME check MIPS: Loongson-3: Fix SMP_ASK_C0COUNT IPI handler libceph: fix ceph_msg_revoke() ALSA: timer: Handle disconnection more safely prctl: take mmap sem for writing to protect against others zsmalloc: fix migrate_zspage-zs_free race condition ALSA: hda - Flush the pending probe work at remove crypto: algif_skcipher - sendmsg SG marking is off by one iscsi-target: Fix potential dead-lock during node acl delete Btrfs: fix deadlock running delayed iputs at transaction commit time ideapad-laptop: Add Lenovo ideapad Y700-17ISK to no_hw_rfkill dmi list IB/cm: Fix a recently introduced deadlock IB/mlx5: Expose correct maximum number of CQE capacity IB/qib: Support creating qps with GFP_NOIO flag IB/qib: fix mcast detach when qp not attached crypto: crc32c - Fix crc32c soft dependency crypto: algif_skcipher - Load TX SG list after waiting xfs: log mount failures don't wait for buffers to be released ARM: debug-ll: fix BCM63xx entry for multiplatform ALSA: control: Avoid kernel warnings from tlv ioctl with numid 0 ALSA: seq: Fix snd_seq_call_port_info_ioctl in compat mode ALSA: pcm: Fix snd_pcm_hw_params struct copy in compat mode dmaengine: at_xdmac: fix resume for cyclic transfers ALSA: hrtimer: Fix stall by hrtimer_cancel() crypto: algif_skcipher - Fix race condition in skcipher_check_key crypto: algif_hash - Fix race condition in hash_check_key lib: sw842: select crc32 crypto: af_alg - Forbid bind(2) when nokey child sockets are present crypto: algif_skcipher - Remove custom release parent function crypto: algif_hash - Remove custom release parent function crypto: af_alg - Allow af_af_alg_release_parent to be called on nokey path crypto: algif_hash - Require setkey before accept(2) crypto: hash - Add crypto_ahash_has_setkey crypto: algif_skcipher - Add nokey compatibility path crypto: af_alg - Add nokey compatibility path crypto: af_alg - Fix socket double-free when accept fails crypto: af_alg - Disallow bind/setkey/... after accept(2) crypto: algif_skcipher - Require setkey before accept(2) ALSA: hda - Fix bass pin fixup for ASUS N550JX printk: do cond_resched() between lines while outputting to consoles kernel/panic.c: turn off locks debug before releasing console lock panic: release stale console lock to always get the logbuf printed out memcg: only free spare array when readers are done zram: don't call idr_remove() from zram_remove() mm: soft-offline: check return value in second __get_any_page() call ACPI / video: Add disable_backlight_sysfs_if quirk for the Toshiba Satellite R830 ACPI / video: Add disable_backlight_sysfs_if quirk for the Toshiba Portege R700 zram: try vmalloc() after kmalloc() zram/zcomp: use GFP_NOIO to allocate streams ALSA: timer: Harden slave timer list handling ALSA: hda - Add fixup for Dell Latitidue E6540 ocfs2/dlm: ignore cleaning the migration mle that is inuse scripts/bloat-o-meter: fix python3 syntax error dma-debug: switch check from _text to _stext m32r: fix m32104ut_defconfig build fail cifs_dbg() outputs an uninitialized buffer in cifs_readdir() cifs: fix race between call_async() and reconnect() cifs: Ratelimit kernel log messages sparc64: fix incorrect sign extension in sys_sparc64_personality ALSA: timer: Fix race among timer ioctls mmc: mmci: fix an ages old detection error dmaengine: dw: fix cyclic transfer callbacks dmaengine: dw: fix cyclic transfer setup ALSA: timer: Fix double unlink of active_list x86/mm: Improve switch_mm() barrier comments drm/i915: intel_hpd_init(): Fix suspend/resume reprobing drm/i915: Restore inhibiting the load of the default context ALSA: usb-audio: Fix mixer ctl regression of Native Instrument devices ALSA: hda - fix the headset mic detection problem for a Dell laptop powerpc/module: Handle R_PPC64_ENTRY relocations scripts/recordmcount.pl: support data in text section on powerpc parisc: Fix __ARCH_SI_PREAMBLE_SIZE ALSA: hda - Fix white noise on Dell Latitude E5550 virtio_balloon: fix race between migration and ballooning virtio_balloon: fix race by fill and leak ALSA: seq: Fix race at timer setup and close ALSA: seq: Fix missing NULL check at remove_events ioctl x86/reboot/quirks: Add iMac10,1 to pci_reboot_dmi_table[] Input: elantech - mark protocols v2 and v3 as semi-mt clocksource/drivers/vt8500: Increase the minimum delta xfs: handle dquot buffer readahead in log recovery correctly xfs: inode recovery readahead can race with inode buffer creation s390: fix normalization bug in exception table sorting x86/boot: Double BOOT_HEAP_SIZE to 64KB x86/mm: Add barriers and document switch_mm()-vs-flush synchronization ALSA: hda - Fixup inverted internal mic for Lenovo E50-80 ALSA: usb: Add native DSD support for Oppo HA-1 drm/nouveau/kms: take mode_config mutex in connector hotplug path uml: flush stdout before forking uml: fix hostfs mknod() dm snapshot: fix hung bios when copy error occurs ASoC: compress: Fix compress device direction check scsi: add Synology to 1024 sector blacklist locks: fix unlock when fcntl_setlk races with a close iwlwifi: pcie: properly configure the debug buffer size for 8000 iwlwifi: update and fix 7265 series PCI IDs btrfs: handle invalid num_stripes in sys_array PCI: host: Mark PCIe/PCI (MSI) IRQ cascade handlers as IRQF_NO_THREAD PCI: Fix minimum allocation address overwrite drm/dp/mst: fix in RAD element access drm/dp/mst: fix in MSTB RAD initialization drm/dp/mst: always send reply for UP request drm/dp/mst: process broadcast messages correctly udf: Check output buffer length when converting name to CS0 udf: Prevent buffer overrun with multi-byte characters x86/xen: don't reset vcpu_info on a cancelled suspend libxfs: pack the agfl header structure so XFS_AGFL_SIZE is correct Input: i8042 - add Fujitsu Lifebook U745 to the nomux list wlcore/wl12xx: spi: fix NULL pointer dereference (Oops) bcache: Change refill_dirty() to always scan entire disk if necessary bcache: allows use of register in udev to avoid "device_busy" error. bcache: unregister reboot notifier if bcache fails to unregister device bcache: fix a leak in bch_cached_dev_run() bcache: clear BCACHE_DEV_UNLINK_DONE flag when attaching a backing device bcache: Add a cond_resched() call to gc bcache: fix a livelock when we cause a huge number of cache misses rtlwifi: rtl_pci: Fix kernel panic NFS: Fix attribute cache revalidation rtlwifi: rtl8192cu: Add missing parameter setup rtlwifi: rtl8192ce: Fix handling of module parameters rtlwifi: rtl8192se: Fix module parameter initialization rtlwifi: rtl8192de: Fix incorrect module parameter descriptions rtlwifi: rtl8188ee: Fix module parameter initialization rtlwifi: rtl8821ae: Fix errors in parameter initialization rtlwifi: rtl8723ae: Fix initialization of module parameters rtlwifi: rtl8723be: Fix module parameter initialization posix-clock: Fix return code on the poll method's error path Thermal: do thermal zone update after a cooling device registered Thermal: handle thermal zone device properly during system sleep Thermal: initialize thermal zone device correctly USB: cp210x: add ID for ELV Marble Sound Board 1 nfs: Fix race in __update_open_stateid() [media] rc: sunxi-cir: Initialize the spinlock properly udf: limit the maximum number of indirect extents in a row regulator: axp20x: Fix GPIO LDO enable value for AXP22x mmc: sdhci: Fix sdhci_runtime_pm_bus_on/off() mmc: sdhci: Fix DMA descriptor with zero data length mmc: sdio: Fix invalid vdd in voltage switch power cycle mmc: sdhci-pci: Do not default to 33 Ohm driver strength for Intel SPT mmc: mmc: Fix incorrect use of driver strength switching HS200 and HS400 drm/radeon: clean up fujitsu quirks drm/amdgpu: Fix off-by-one errors in amdgpu_vm_bo_map drm/radeon: Fix off-by-one errors in radeon_vm_bo_set_addr coresight: checking for NULL string in coresight_name_match() arm64: kernel: enforce pmuserenr_el0 initialization and restore arm64: mdscr_el1: avoid exposing DCC to userspace futex: Drop refcount if requeue_pi() acquired the rtmutex drm/radeon: Fix "slow" audio over DP on DCE8+ dm thin: fix race condition when destroying thin pool workqueue iommu/io-pgtable-arm: Ensure we free the final level on teardown clk: exynos: use irqsave version of spin_lock to avoid deadlock with irqs tools: hv: vss: fix the write()'s argument: error -> vss_msg Drivers: hv: vmbus: Fix a Host signaling bug dm space map metadata: remove unused variable in brb_pop() powerpc: Make {cmp}xchg* and their atomic_ versions fully ordered powerpc: Make value-returning atomics fully ordered arm64: mm: ensure that the zero page is visible to the page table walker EDAC: Robustify workqueues destruction EDAC, mc_sysfs: Fix freeing bus' name ovl: check dentry positiveness in ovl_cleanup_whiteouts() ovl: setattr: check permissions before copy-up wlcore/wl12xx: spi: fix oops on firmware load rtlwifi: fix memory leak for USB device ext4 crypto: add missing locking for keyring_key access ext4 crypto: exit cleanly if ext4_derive_key_aes() fails Bluetooth: Add support of Toshiba Broadcom based devices ovl: root: copy attr time: Avoid signed overflow in timekeeping_get_ns() arm64: Clear out any singlestep state on a ptrace detach operation ARM: mvebu: remove duplicated regulator definition in Armada 388 GP xhci: refuse loading if nousb is used drm/radeon: call hpd_irq_event on resume drm/amdgpu: call hpd_irq_event on resume KVM: x86: correctly print #AC in traces KVM: x86: expose MSR_TSC_AUX to userspace cxl: use correct operator when writing pcie config space values tools lib traceevent: Fix output of %llu for 64 bit values read on 32 bit machines [media] si2157: return -EINVAL if firmware blob is too big [media] media: dvb-core: Don't force CAN_INVERSION_AUTO in oneshot mode [media] gspca: ov534/topro: prevent a division by 0 [media] vb2: fix a regression in poll() behavior for output,streams ovl: use a minimal buffer in ovl_copy_xattr ovl: allow zero size xattr drm/nouveau/nv46: Change mc subdev oclass from nv44 to nv4c To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1540532/+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
