This bug was fixed in the package linux - 4.4.0-31.50
---------------
linux (4.4.0-31.50) xenial; urgency=low
[ Kamal Mostafa ]
* Release Tracking Bug
- LP: #1602449
* nouveau: boot hangs at blank screen with unsupported graphics cards
(LP: #1602340)
- SAUCE: drm: check for supported chipset before booting fbdev off the hw
linux (4.4.0-30.49) xenial; urgency=low
[ Kamal Mostafa ]
* Release Tracking Bug
- LP: #1597897
* FCP devices are not detected correctly nor deterministically (LP: #1567602)
- scsi_dh_alua: Disable ALUA handling for non-disk devices
- scsi_dh_alua: Use vpd_pg83 information
- scsi_dh_alua: improved logging
- scsi_dh_alua: sanitze sense code handling
- scsi_dh_alua: use standard logging functions
- scsi_dh_alua: return standard SCSI return codes in submit_rtpg
- scsi_dh_alua: fixup description of stpg_endio()
- scsi_dh_alua: use flag for RTPG extended header
- scsi_dh_alua: use unaligned access macros
- scsi_dh_alua: rework alua_check_tpgs() to return the tpgs mode
- scsi_dh_alua: simplify sense code handling
- scsi: Add scsi_vpd_lun_id()
- scsi: Add scsi_vpd_tpg_id()
- scsi_dh_alua: use scsi_vpd_tpg_id()
- scsi_dh_alua: Remove stale variables
- scsi_dh_alua: Pass buffer as function argument
- scsi_dh_alua: separate out alua_stpg()
- scsi_dh_alua: Make stpg synchronous
- scsi_dh_alua: call alua_rtpg() if stpg fails
- scsi_dh_alua: switch to scsi_execute_req_flags()
- scsi_dh_alua: allocate RTPG buffer separately
- scsi_dh_alua: Use separate alua_port_group structure
- scsi_dh_alua: use unique device id
- scsi_dh_alua: simplify alua_initialize()
- revert commit a8e5a2d593cb ("[SCSI] scsi_dh_alua: ALUA handler attach
should
succeed while TPG is transitioning")
- scsi_dh_alua: move optimize_stpg evaluation
- scsi_dh_alua: remove 'rel_port' from alua_dh_data structure
- scsi_dh_alua: Use workqueue for RTPG
- scsi_dh_alua: Allow workqueue to run synchronously
- scsi_dh_alua: Add new blacklist flag 'BLIST_SYNC_ALUA'
- scsi_dh_alua: Recheck state on unit attention
- scsi_dh_alua: update all port states
- scsi_dh_alua: Send TEST UNIT READY to poll for transitioning
- scsi_dh_alua: do not fail for unknown VPD identification
linux (4.4.0-29.48) xenial; urgency=low
[ Kamal Mostafa ]
* Release Tracking Bug
- LP: #1597015
* Wireless hotkey fails on Dell XPS 15 9550 (LP: #1589886)
- intel-hid: new hid event driver for hotkeys
- intel-hid: fix incorrect entries in intel_hid_keymap
- intel-hid: allocate correct amount of memory for private struct
- intel-hid: add a workaround to ignore an event after waking up from S4.
- [Config] CONFIG_INTEL_HID_EVENT=m
* cgroupfs mounts can hang (LP: #1588056)
- Revert "UBUNTU: SAUCE: (namespace) mqueue: Super blocks must be owned by
the
user ns which owns the ipc ns"
- Revert "UBUNTU: SAUCE: kernfs: Do not match superblock in another user
namespace when mounting"
- Revert "UBUNTU: SAUCE: cgroup: Use a new super block when mounting in a
cgroup namespace"
- (namespace) bpf: Use mount_nodev not mount_ns to mount the bpf filesystem
- (namespace) bpf, inode: disallow userns mounts
- (namespace) ipc: Initialize ipc_namespace->user_ns early.
- (namespace) vfs: Pass data, ns, and ns->userns to mount_ns
- SAUCE: (namespace) Sync with upstream s_user_ns patches
- (namespace) kernfs: The cgroup filesystem also benefits from SB_I_NOEXEC
- (namespace) ipc/mqueue: The mqueue filesystem should never contain
executables
* KVM system crashes after starting guest (LP: #1596635)
- xhci: Cleanup only when releasing primary hcd
* Upstream patch "crypto: vmx - IV size failing on skcipher API" for Ubuntu
16.04 (LP: #1596557)
- crypto: vmx - IV size failing on skcipher API
* [Bug]tpm initialization fails on x86 (LP: #1596469)
- tpm_crb: drop struct resource res from struct crb_priv
- tpm_crb: fix mapping of the buffers
* Device shutdown notification for CAPI Flash cards (LP: #1592114)
- cxlflash: Fix regression issue with re-ordering patch
- cxlflash: Fix to drain operations from previous reset
- cxlflash: Add device dependent flags
- cxlflash: Shutdown notify support for CXL Flash cards
* scsi-modules udeb should include pm80xx (LP: #1595628)
- [Config] Add pm80xx scsi driver to d-i
* Sync up latest relevant upstream bug fixes (LP: #1594871)
- SAUCE: (noup) Update zfs to 0.6.5.6-0ubuntu10
* Cannot compile module tda10071 (LP: #1592531)
- [media] tda10071: Fix dependency to REGMAP_I2C
* lsvpd doesn't show correct location code for devices attached to a CAPI card
(LP: #1594847)
- cxl: Make vPHB device node match adapter's
* enable CRC32 and AES ARM64 by default or as module (LP: #1594455)
- [Config] Enable arm64 AES and CRC32 crypto
* VMX kernel crypto module exhibits poor performance in Ubuntu 16.04
(LP: #1592481)
- crypto: vmx - comply with ABIs that specify vrsave as reserved.
- crypto: vmx - Fix ABI detection
- crypto: vmx - Increase priority of aes-cbc cipher
* build squashfs into xenial kernels by default (LP: #1593134)
- [Config] CONFIG_SQUASHFS=y
* Restore irqfd fast path for PPC (LP: #1592809)
- KVM: PPC: Book3S HV: Re-enable XICS fast path for irqfd-generated
interrupts
* Unable to start guests with memballoon default. (LP: #1592042)
- virtio_balloon: fix PFN format for virtio-1
* Key 5 automatically pressed on some Logitech wireless keyboards
(LP: #1579190)
- HID: core: prevent out-of-bound readings
* ZFS: Running ztest repeatedly for long periods of time eventually results in
"zdb: can't open 'ztest': No such file or directory" (LP: #1587686)
- Fix ztest truncated cache file
* STC840.20:Alpine:alp7fp1:Ubuntu 16.04, BlueFin (SAN) EEH 6 times during boot
then disabled SRC BA188002:b0314a_1612.840 (LP: #1587316)
- lpfc: Fix DMA faults observed upon plugging loopback connector
-- Kamal Mostafa <ka...@canonical.com> Tue, 12 Jul 2016 16:28:12 -0700
** Changed in: linux (Ubuntu Xenial)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1596635
Title:
KVM system crashes after starting guest
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Xenial:
Fix Released
Bug description:
== Comment: #0 - Chanh H. Nguyen - 2016-06-25 00:24:28 ==
We have Ubuntun 16.04.1 version on our SuperMicro system and some of the
virtual packages installed. Define a guest with a pci passthrough is fine but
then system crashes at xhci_irq+0x1bc/0xf50 after we start the guest....
7c:mon> e
cpu 0x7c: Vector: 300 (Data Access) at [c000001e1b80f760]
pc: c00000000088217c: xhci_irq+0x1bc/0xf50
lr: c000000000882050: xhci_irq+0x90/0xf50
sp: c000001e1b80f9e0
msr: 9000000102009033
dar: 28
dsisr: 40000000
current = 0xc000001e1bc82a20
paca = 0xc000000007b89a00 softe: 0 irq_happened: 0x01
pid = 4026, comm = libvirtd
7c:mon> t
[c000001e1b80fb00] c00000000080ebb0 usb_hcd_irq+0x50/0xa0
[c000001e1b80fb30] c00000000082af58 usb_hcd_pci_remove+0x68/0x1c0
[c000001e1b80fb70] c00000000088a118 xhci_pci_remove+0x78/0xb0
[c000001e1b80fba0] c0000000005e54b0 pci_device_remove+0x70/0x110
[c000001e1b80fbe0] c0000000006d1550 __device_release_driver+0xc0/0x190
[c000001e1b80fc10] c0000000006d1660 device_release_driver+0x40/0x70
[c000001e1b80fc40] c0000000006cf860 unbind_store+0x170/0x1b0
[c000001e1b80fc80] c0000000006ce1d4 drv_attr_store+0x64/0xa0
[c000001e1b80fcc0] c0000000003978d0 sysfs_kf_write+0x80/0xb0
[c000001e1b80fd00] c0000000003967e8 kernfs_fop_write+0x188/0x200
[c000001e1b80fd50] c0000000002e126c __vfs_write+0x6c/0xe0
[c000001e1b80fd90] c0000000002e1fa0 vfs_write+0xc0/0x230
[c000001e1b80fde0] c0000000002e2fdc SyS_write+0x6c/0x110
[c000001e1b80fe30] c000000000009204 system_call+0x38/0xb4
--- Exception: c01 (System Call) at 00003fff7f6e6708
SP (3fff7abfd520) is in userspace
7c:mon> r
R00 = c000000000882050 R16 = 00003fff7a400000
R01 = c000001e1b80f9e0 R17 = c000000000df4200
R02 = c0000000015b4200 R18 = c000000000b84200
R03 = d000080081560024 R19 = c000000000de4200
R04 = c000000004880000 R20 = 0000000000000001
R05 = c000000004884000 R21 = 00003fff5400565d
R06 = c000000004884000 R22 = 00003fff5875aa80
R07 = 000000000000003e R23 = 00003fff7fa914e0
R08 = 0000000000000000 R24 = 00003fff7fa90b90
R09 = 0000000000000006 R25 = c000000000df4200
R10 = 0000000000000000 R26 = c000001e1b80fe00
R11 = 0000000000000006 R27 = c000001e3a2d1698
R12 = c000000000881fc0 R28 = c000000001550f98
R13 = c000000007b89a00 R29 = c000000004880260
R14 = 0000000000000000 R30 = c0000000048802ac
R15 = 0000000000000000 R31 = c000000004880000
pc = c00000000088217c xhci_irq+0x1bc/0xf50
cfar= c000000000008468 slb_miss_realmode+0x50/0x78
lr = c000000000882050 xhci_irq+0x90/0xf50
msr = 9000000102009033 cr = 28028882
ctr = c000000000881fc0 xer = 0000000000000000 trap = 300
dar = 0000000000000028 dsisr = 40000000
7c:mon> d c000000000b000f0
c000000000b000f0 4c696e7578207665 7273696f6e20342e |Linux version 4.|
c000000000b00100 342e302d32342d67 656e657269632028 |4.0-24-generic (|
c000000000b00110 6275696c64644062 6f7330312d707063 |buildd@bos01-ppc|
c000000000b00120 3634656c2d303233 2920286763632076 |64el-023) (gcc v|
== Comment: #9 - Gabriel Krisman Bertazi - 2016-06-27 08:43:33 ==
(In reply to comment #0)
> We have Ubuntun 16.04.1 version on our SuperMicro system and some of the
> virtual packages installed. Define a guest with a pci passthrough is fine
> but then system crashes at xhci_irq+0x1bc/0xf50 after we start the guest....
>
> 7c:mon> e
> cpu 0x7c: Vector: 300 (Data Access) at [c000001e1b80f760]
> pc: c00000000088217c: xhci_irq+0x1bc/0xf50
> lr: c000000000882050: xhci_irq+0x90/0xf50
> sp: c000001e1b80f9e0
> msr: 9000000102009033
> dar: 28
> dsisr: 40000000
> current = 0xc000001e1bc82a20
> paca = 0xc000000007b89a00 softe: 0 irq_happened: 0x01
> pid = 4026, comm = libvirtd
Hi,
From a quick look, it seems you are missing this commit:
commit 27a41a83ec54d0edfcaf079310244e7f013a7701
Author: Gabriel Krisman Bertazi <kris...@linux.vnet.ibm.com>
Date: Wed Jun 1 18:09:07 2016 +0300
xhci: Cleanup only when releasing primary hcd
==
Canonical,
Please backport to 16.04.01
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