This bug was fixed in the package linux - 4.8.0-27.29
---------------
linux (4.8.0-27.29) yakkety; urgency=low
[ Seth Forshee ]
* Release Tracking Bug
- LP: #1635377
* proc_keys_show crash when reading /proc/keys (LP: #1634496)
- SAUCE: KEYS: ensure xbuf is large enough to fix buffer overflow in
proc_keys_show (LP: #1634496)
* Revert "If zone is so small that watermarks are the same, stop zone balance"
in yakkety (LP: #1632894)
- Revert "UBUNTU: SAUCE: (no-up) If zone is so small that watermarks are the
same, stop zone balance."
* lts-yakkety 4.8 cannot mount lvm raid1 (LP: #1631298)
- SAUCE: (no-up) dm raid: fix compat_features validation
* kswapd0 100% CPU usage (LP: #1518457)
- SAUCE: (no-up) If zone is so small that watermarks are the same, stop zone
balance.
* [Trusty->Yakkety] powerpc/64: Fix incorrect return value from
__copy_tofrom_user (LP: #1632462)
- SAUCE: (no-up) powerpc/64: Fix incorrect return value from
__copy_tofrom_user
* Ubuntu 16.10: Oops panic in move_page_tables/page_remove_rmap after running
memory_stress_ng. (LP: #1628976)
- SAUCE: (no-up) powerpc/pseries: Fix stack corruption in htpe code
* Paths not failed properly when unmapping virtual FC ports in VIOS (using
ibmvfc) (LP: #1632116)
- scsi: ibmvfc: Fix I/O hang when port is not mapped
* [Ubuntu16.10]KV4.8: kernel livepatch config options are not set
(LP: #1626983)
- [Config] Enable live patching on powerpc/ppc64el
* CONFIG_AUFS_XATTR is not set (LP: #1557776)
- [Config] CONFIG_AUFS_XATTR=y
* Yakkety update to 4.8.1 stable release (LP: #1632445)
- arm64: debug: avoid resetting stepping state machine when TIF_SINGLESTEP
- Using BUG_ON() as an assert() is _never_ acceptable
- usb: misc: legousbtower: Fix NULL pointer deference
- Staging: fbtft: Fix bug in fbtft-core
- usb: usbip: vudc: fix left shift overflow
- USB: serial: cp210x: Add ID for a Juniper console
- Revert "usbtmc: convert to devm_kzalloc"
- ALSA: hda - Adding one more ALC255 pin definition for headset problem
- ALSA: hda - Fix headset mic detection problem for several Dell laptops
- ALSA: hda - Add the top speaker pin config for HP Spectre x360
- Linux 4.8.1
* PSL data cache should be flushed before resetting CAPI adapter
(LP: #1632049)
- cxl: Flush PSL cache before resetting the adapter
* thunder nic: avoid link delays due to RX_PACKET_DIS (LP: #1630038)
- net: thunderx: Don't set RX_PACKET_DIS while initializing
* crypto/vmx/p8_ghash memory corruption (LP: #1630970)
- crypto: ghash-generic - move common definitions to a new header file
- crypto: vmx - Fix memory corruption caused by p8_ghash
- crypto: vmx - Ensure ghash-generic is enabled
* arm64: SPCR console not autodetected (LP: #1630311)
- of/serial: move earlycon early_param handling to serial
- [Config] CONFIG_ACPI_SPCR_TABLE=y
- ACPI: parse SPCR and enable matching console
- ARM64: ACPI: enable ACPI_SPCR_TABLE
- serial: pl011: add console matching function
* include/linux/security.h header syntax error with !CONFIG_SECURITYFS
(LP: #1630990)
- SAUCE: (no-up) include/linux/security.h -- fix syntax error with
CONFIG_SECURITYFS=n
* sha1-powerpc returning wrong results (LP: #1629977)
- crypto: sha1-powerpc - little-endian support
-- Seth Forshee <seth.fors...@canonical.com> Thu, 20 Oct 2016 14:09:37
-0500
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https://bugs.launchpad.net/bugs/1628976
Title:
Ubuntu 16.10: Oops panic in move_page_tables/page_remove_rmap after
running memory_stress_ng.
Status in linux package in Ubuntu:
Fix Committed
Status in linux source package in Trusty:
Fix Released
Status in linux source package in Xenial:
Fix Released
Status in linux source package in Yakkety:
Fix Released
Bug description:
FYI Canonical:
We have been seeing various page handling issues during memory stress
in the 4.8 kernels. The following is the most recent issue resulting
in system panics on this host after the 4.8.0-17 update:
== Comment: #17 - PAVITHRA R. PRAKASH - 2016-09-28 06:26:21 ==
Hi,
Tried running on 4.8.0-17-generic kernel. Getting below call trace and
system crashes. Attaching logs.
[ 2959.364333] Unable to handle kernel paging request for data at address
0xf000000002fe4020
[ 2959.364345] Faulting instruction address: 0xc0000000002bb2a0
[ 2959.364356] Oops: Kernel access of bad area, sig: 11 [#1]
[ 2959.364364] SMP NR_CPUS=2048 NUMA pSeries
[ 2959.364377] Modules linked in: rpadlpar_io rpaphp dccp_diag dccp tcp_diag
udp_diag inet_diag unix_diag af_packet_diag netlink_diag bnx2x mdio libcrc32c
pseries_rng vmx_crypto binfmt_misc ip_tables x_tables autofs4 ibmvscsi
crc32c_vpmsum
[ 2959.364441] CPU: 13 PID: 108 Comm: oom_reaper Not tainted 4.8.0-17-generic
#19-Ubuntu
[ 2959.364452] task: c0000004fbdf9c00 task.stack: c0000004fbe00000
[ 2959.364461] NIP: c0000000002bb2a0 LR: c000000000300618 CTR:
c00000000009ca40
[ 2959.364471] REGS: c0000004fbe036e0 TRAP: 0300 Not tainted
(4.8.0-17-generic)
[ 2959.364481] MSR: 800000010280b033 <SF,VEC,VSX,EE,FP,ME,IR,DR,RI,LE,TM[E]>
CR: 24028844 XER: 2000000c
[ 2959.364526] CFAR: c000000000300614 DAR: f000000002fe4020 DSISR: 40000000
SOFTE: 1
GPR00: c000000000300618 c0000004fbe03960 c0000000014e5e00
f000000002fe4000
GPR04: 0000000000000001 0000000000000800 0000000000000000
c000000001665e00
GPR08: 00000000f900a196 0000000000000001 0000000002fe4000
0000000000000000
GPR12: 0000000000008800 c000000001b37500 0008000000000000
c1ffffffffffe7ff
GPR16: c0000004f62a55f0 00003fff9a000000 00003fff99000000
0000000000000000
GPR20: c0000004fbe03b80 c0000004e0713800 8e017c33020000c0
0000000000010000
GPR24: c0000000fb3614c8 c0000000fce9d990 c0000000fce9d6e4
96a100f90b000040
GPR28: f000000002fe4000 c0000000fb3614c8 0000000000000001
f000000002fe4000
[ 2959.364673] NIP [c0000000002bb2a0] page_remove_rmap+0x30/0x4b0
[ 2959.364685] LR [c000000000300618] zap_huge_pmd+0xf8/0x480
[ 2959.364692] Call Trace:
[ 2959.364699] [c0000004fbe03960] [c0000004fbe039a0] 0xc0000004fbe039a0
(unreliable)
[ 2959.364714] [c0000004fbe039a0] [c000000000300618] zap_huge_pmd+0xf8/0x480
[ 2959.364726] [c0000004fbe039f0] [c0000000002a68d8]
unmap_page_range+0xd08/0xee0
[ 2959.364740] [c0000004fbe03b20] [c00000000025c474]
__oom_reap_task+0x204/0x2c0
[ 2959.364752] [c0000004fbe03c80] [c00000000025cda8] oom_reaper+0x1e8/0x300
[ 2959.364765] [c0000004fbe03d80] [c0000000000fd120] kthread+0x110/0x130
[ 2959.364778] [c0000004fbe03e30] [c0000000000098f0]
ret_from_kernel_thread+0x5c/0x6c
[ 2959.364788] Instruction dump:
[ 2959.364796] 3c4c0123 3842ab90 7c0802a6 fba1ffe8 fbc1fff0 fbe1fff8 f8010010
f821ffc1
[ 2959.364821] 7c7f1b78 7c9e2378 60000000 60000000 <e95f0020> 71480001
392affff 40820008
[ 2959.364871] ---[ end trace 178b14c6911b70dc ]---
[ 2959.372762]
[ 2959.372798] Sending IPI to other CPUs
[ 2959.373834] IPI complete
Thanks,
Pavithra
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