[4.9-rc5] kernel BUG at kernel/sched/rt.c:764!

2016-11-16 Thread CAI Qian
Occasionally, this machine hit it during boot with this config. http://people.redhat.com/qcai/tmp/config-god-4.9rc2 [ 18.125103] x2apic enabled [ 18.128182] Switched APIC routing to cluster x2apic. [ 18.137063] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 18.153805] smpboot: CPU

local DoS - systemd hang or timeout with cgroup traces

2016-10-27 Thread CAI Qian
So this can still be reproduced in 4.9-rc2 by running trinity as a non-root user within 30-minute on this machine on either ext4 or xfs. Below is the trace on ext4 and the sysrq-w report. http://people.redhat.com/qcai/tmp/dmesg-ext4-cgroup-hang CAI Qian - Original Message - > F

Re: [PATCH] perf: Protect pmu device removal with pmu_bus_running check CONFIG_DEBUG_TEST_DRIVER_REMOVE kernel panic

2016-10-20 Thread CAI Qian
> CAI Qian reported crash [1] in uncore device removal related > to CONFIG_DEBUG_TEST_DRIVER_REMOVE option. > > The reason for crash is that perf_pmu_unregister tries to remove > pmu device which is not added at this point. We add pmu devices > only after pmu_bus is registere

Re: [4.9-rc1+] intel_uncore builtin + CONFIG_DEBUG_TEST_DRIVER_REMOVE kernel panic

2016-10-19 Thread CAI Qian
> I think the reason here is that presume pmu devices are always added, > but we add them only if pmu_bus_running (in perf_event_sysfs_init) > is set which might happen after uncore initcall > > attached patch fixes the issue for me Tested-by: CAI Qian > > jirka >

[4.9-rc1+] intel_uncore builtin + CONFIG_DEBUG_TEST_DRIVER_REMOVE kernel panic

2016-10-19 Thread CAI Qian
- not syncing: Fatal exception - Original Message - > From: "Rob Herring" > To: "Greg Kroah-Hartman" > Cc: "CAI Qian" , "linux-kernel" > > Sent: Monday, October 10, 2016 2:15:29 PM > Subject: Re: kasan inline + CONFIG_DEBUG_TE

Re: [4.9-rc1] kernel panic from `cat /proc/driver/rtc`

2016-10-18 Thread CAI Qian
> Is that fixed by http://patchwork.ozlabs.org/patch/683728/ ? Yup.

Re: [4.9-rc1] kernel panic from `cat /proc/driver/rtc`

2016-10-18 Thread CAI Qian
IRQ frequency: 64 24hr: yes periodic_IRQ: no update_IRQ: no HPET_emulated: yes BCD: yes DST_enable: no periodic_freq: 1024 batt_status: okay    CAI Qian - Original Message - > From: "CAI Qia

[4.9-rc1] kernel panic from `cat /proc/driver/rtc`

2016-10-18 Thread CAI Qian
This looks like new introduced in the 4.9 merge window. I have never saw any of those while testing v4.8. CAI Qian $ cat /proc/driver/rtc [ 7890.728704] UBSAN: Undefined behaviour in drivers/rtc/rtc-cmos.c:433:10 [ 7890.736088] member access within null pointer of type 'struct cmo

Re: [PATCH] mm: kmemleak: Ensure that the task stack is not freed during scanning

2016-10-12 Thread CAI Qian
- Original Message - > From: "Catalin Marinas" > To: linux...@kvack.org > Cc: linux-kernel@vger.kernel.org, "Andrew Morton" > , "Andy Lutomirski" , > "CAI Qian" > Sent: Wednesday, October 12, 2016 5:57:03 AM > Subject:

Re: kasan inline + CONFIG_DEBUG_TEST_DRIVER_REMOVE kernel panic

2016-10-10 Thread CAI Qian
> Is the backtrace the same in that case? Very close. I saw "intel" there, and here is the list those modules on the system. # lsmod | grep intel intel_rapl 20480 0 intel_powerclamp 16384 0 kvm_intel 208896 0 kvm 630784 1 kvm_intel ghash_clm

Re: kasan inline + CONFIG_DEBUG_TEST_DRIVER_REMOVE kernel panic

2016-10-10 Thread CAI Qian
- Original Message - > From: "Rob Herring" > To: "CAI Qian" > Cc: "linux-kernel" , "Greg Kroah-Hartman" > > Sent: Monday, October 10, 2016 1:09:43 PM > Subject: Re: kasan inline + CONFIG_DEBUG_TEST_DRIVER_REMOVE kernel pa

Re: kasan inline + CONFIG_DEBUG_TEST_DRIVER_REMOVE kernel panic

2016-10-10 Thread CAI Qian
- Original Message - > From: "Rob Herring" > To: "Greg Kroah-Hartman" > Cc: "CAI Qian" , "linux-kernel" > > Sent: Monday, October 10, 2016 2:15:29 PM > Subject: Re: kasan inline + CONFIG_DEBUG_TEST_DRIVER_REMOVE kernel panic

KASAN (inline) + CONFIG_KPROBES_SANITY_TEST failures and kernel panic

2016-10-10 Thread CAI Qian
It usually report failures when enabled KASAN (inline) and CONFIG_KPROBES_SANITY_TEST on today's mainline HEAD. Occasionally, kernel panic with trace at the bottom. [   52.973247] Kprobe smoke test: started [   53.078585] == [   53.

kasan inline + CONFIG_DEBUG_TEST_DRIVER_REMOVE kernel panic

2016-10-10 Thread CAI Qian
Not sure if anyone reported this before. With this kernel config, it is 100% kernel panic so far with today's mainline master HEAD. http://people.redhat.com/qcai/tmp/config-kasan-remove [ 36.318420] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 36.325626] software IO TLB [mem 0

Re: [RFC] autokdump - automated kdump testsuite

2014-09-22 Thread CAI Qian
- Original Message - > From: "Vivek Goyal" > To: "CAI Qian" > Cc: "ltp-list" sourceforge.net>, "kexec kdump redhat mailing list" > , > "kexec" , "linux-kernel" vger.kernel.org>, > "crash-

Re: [RFC] autokdump - automated kdump testsuite

2014-09-22 Thread CAI Qian
- Original Message - > From: "Vivek Goyal" > To: "CAI Qian" > Cc: "linux-kernel" , "ltp-list" > , "crash-utility" > , "kexec" , "kexec kdump > redhat mailing list" > > Sent: Friday, Septem

[RFC] autokdump - automated kdump testsuite

2014-09-19 Thread CAI Qian
back into the 1st kernel. implementation: It will setup a daemon to handle reboots. plan: I might also to test the makedumpfile all together later. CAI Qian -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kerne

Re: [ 00/19] 3.10.1-stable review

2013-07-17 Thread CAI Qian
- 原始邮件 - > 发件人: "H. Peter Anvin" > 收件人: "CAI Qian" > 抄送: "Steven Rostedt" , "Thomas Gleixner" > , "Sarah Sharp" > , "Linus Torvalds" > , "Ingo Molnar" , > "Guenter Roeck" , &q

Re: [ 00/19] 3.10.1-stable review

2013-07-17 Thread CAI Qian
- Original Message - > From: "Steven Rostedt" > To: "CAI Qian" > Cc: "Thomas Gleixner" , "Sarah Sharp" > , "Linus Torvalds" > , "Ingo Molnar" , "Guenter > Roeck" , "Greg > Kroah-Hartma

Re: [ 00/19] 3.10.1-stable review

2013-07-17 Thread CAI Qian
- Original Message - > From: "Steven Rostedt" > To: "CAI Qian" > Cc: "Thomas Gleixner" , "Sarah Sharp" > , "Linus Torvalds" > , "Ingo Molnar" , "Guenter > Roeck" , "Greg > Kroah-Hartma

Re: [ 00/19] 3.10.1-stable review

2013-07-17 Thread CAI Qian
- Original Message - > From: "Thomas Gleixner" > To: "Sarah Sharp" > Cc: "Linus Torvalds" , "Ingo Molnar" > , "Guenter Roeck" > , "Greg Kroah-Hartman" , > "Steven Rostedt" , > "Dave Jones" , "Linux Kernel Mailing List" > , "Andrew Morton" > , "stable" , "Darren Hart" > > Sent: Thur

Re: [Ksummit-2013-discuss] [ATTEND] How to act on LKML

2013-07-17 Thread CAI Qian
- Original Message - > From: "Sarah Sharp" > To: "CAI Qian" > Cc: "Trond Myklebust" , "Ric Wheeler" > , "David Lang" > , ksummit-2013-disc...@lists.linuxfoundation.org, "Greg > Kroah-Hartman" , > &qu

Re: [Ksummit-2013-discuss] [ATTEND] How to act on LKML

2013-07-17 Thread CAI Qian
- Original Message - > From: "Trond Myklebust" > To: "Ric Wheeler" > Cc: "Sarah Sharp" , "David Lang" > , > ksummit-2013-disc...@lists.linuxfoundation.org, "Greg Kroah-Hartman" > , "Darren Hart" > , "Ingo Molnar" , "Olivier > Galibert" , "Linux Kernel > Mailing List" , "stable" > ,

Re: [ 00/19] 3.10.1-stable review

2013-07-17 Thread CAI Qian
- Original Message - > From: "Joe Perches" > To: "NeilBrown" > Cc: "Steven Rostedt" , "J. Bruce Fields" > , "Linus Torvalds" > , "Sarah Sharp" > , "Ingo Molnar" , > "Guenter Roeck" , "Greg Kroah-Hartman" > , "Dave Jones" > , "Linux Kernel Mailing List" > , "Andrew Morton" > , "stabl

kernel BUG at mm/slub.c:3352!

2013-06-06 Thread CAI Qian
070008 7fc9502a e9270010 2fbe 41de0088 2fa9 3b20 [ 1104.320329] 419e007c e95c0022 e93c 79290720 <7f1e502a> 0b09 0b19 3920 [ 1104.320342] ---[ end trace c320e07d73bae693 ]--- [ 1104.329423] CAI Qian -- To unsubscribe from this list: send the line "unsub

Re: 3.9.4 Oops running xfstests (WAS Re: 3.9.3: Oops running xfstests)

2013-06-03 Thread CAI Qian
dev/mapper/rhel_hp--z210--01-home MOUNT_OPTIONS -- -o context=system_u:object_r:nfs_t:s0 /dev/mapper/rhel_hp--z210--01-home /mnt/testarea/scratch 020 CAI Qian -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/

Re: 3.9.4 Oops running xfstests (WAS Re: 3.9.3: Oops running xfstests)

2013-06-03 Thread CAI Qian
- Original Message - > From: "Dave Chinner" > To: "CAI Qian" > Cc: x...@oss.sgi.com, sta...@vger.kernel.org, "LKML" > , "linux-mm" > Sent: Monday, June 3, 2013 12:00:38 PM > Subject: Re: 3.9.4 Oops running xfstests (WAS Re:

Re: 3.9.4 Oops running xfstests (WAS Re: 3.9.3: Oops running xfstests)

2013-06-02 Thread CAI Qian
yncing: Watchdog detected hard LOCKUP on cpu 3 [ 7288.185689] Shutting down cpus with NMI [ 7288.189526] drm_kms_helper: panic occurred, switching back to text console CAI Qian -- To unsubscribe from this list: sen

Re: 3.9.2/3.9.3: stack overrun on s390x and ppc64 (WAS Re: 3.9.2: xfstests triggered panic)

2013-05-23 Thread CAI Qian
OK, here is clearer stack output from the run. CAI Qian + ./check FSTYP -- xfs (non-debug) PLATFORM -- Linux/s390x ibm-z10-23 3.9.3 001 29s 002 3s 003 2s 004 [not run] this test requires a valid $SCRATCH_DEV 005 2s 006 9s 007 10s 008 7s 009

3.9.2/3.9.3: stack overrun on s390x and ppc64 (WAS Re: 3.9.2: xfstests triggered panic)

2013-05-22 Thread CAI Qian
Original report: http://oss.sgi.com/archives/xfs/2013-05/msg00683.html Also seen on Power7: http://marc.info/?l=linux-kernel&m=136927904900692&w=2 CAI Qian - Original Message - > From: "Dave Chinner" > To: "CAI Qian" > Cc: "LKML" , sta

Re: 3.9.2: xfstests triggered panic

2013-05-22 Thread CAI Qian
- Original Message - > From: "Dave Chinner" > To: "CAI Qian" > Cc: "LKML" , sta...@vger.kernel.org, > x...@oss.sgi.com > Sent: Thursday, May 23, 2013 11:46:11 AM > Subject: Re: 3.9.2: xfstests triggered panic > > On

Re: 3.9.2: trinity triggered oops

2013-05-22 Thread CAI Qian
- Original Message - > From: "Greg KH" > To: "CAI Qian" > Cc: "Li Zefan" , "LKML" , > "Dave Jones" , > sta...@vger.kernel.org > Sent: Wednesday, May 22, 2013 11:30:24 PM > Subject: Re: 3.9.2: trinity triggered oop

Re: 3.9.2: xfstests triggered panic

2013-05-22 Thread CAI Qian
- Original Message - > From: "Dave Chinner" > To: "CAI Qian" > Cc: "LKML" , sta...@vger.kernel.org, > x...@oss.sgi.com > Sent: Wednesday, May 22, 2013 5:53:00 PM > Subject: Re: 3.9.2: xfstests triggered panic > > On

3.9.2: xfstests triggered panic

2013-05-22 Thread CAI Qian
000141d8 001a9fe6 0044 000 141d8 15320.366550¨3743 0063df78 00634f24 000 14028 15320.366557¨ Krnl Code: 0063678a: b9040082 lgr %r8,%r2 15320.366560¨0063678e: a729ffbf

3.9.2: trinity triggered oops

2013-05-22 Thread CAI Qian
Reproduced on a few systems. CAI Qian created 375 sockets Generating file descriptors Added 45 filenames from /dev Added 19858 filenames from /proc Added 11816 filenames from /sys [1143] Random reseed: 1433907474 trinity(1143): Randomness reseeded to 0x5577b112 trinity: trinity(1143

Re: 3.9.0: WARNING: at drivers/base/core.c:575

2013-05-09 Thread CAI Qian
- Original Message - > From: "Borislav Petkov" > To: "CAI Qian" > Cc: "Srivatsa S. Bhat" , "LKML" > , mche...@redhat.com, > "Greg KH" , ba...@ti.com > Sent: Tuesday, May 7, 2013 9:28:29 PM > Subject: Re: 3.9.0:

Re: 3.9.0: WARNING: at drivers/base/core.c:575

2013-05-07 Thread CAI Qian
2308] ---[ end trace 3eb6a6f51fb8cafb ]--- [ 18.402406] [ cut here ] - Original Message ----- > From: "CAI Qian" > To: "LKML" > Sent: Tuesday, May 7, 2013 3:25:58 PM > Subject: 3.9.0: WARNING: at drivers/base/core.c:575 > > Neve

3.9.0: WARNING: at drivers/base/core.c:575

2013-05-07 Thread CAI Qian
0 4829c2f1 6000 0fe0 e8810070 4bb0 6000 3c62ff8c [0.359211] f8810070 3863e5e8 4829c2cd 6000 <0fe0> e8810070 a1240008 4b80 [0.359241] ---[ end trace c949de754c984735 ]--- CAI Qian -- To unsubscribe from this list: send the line "unsubscribe linux-k

3.9.0: system deadlock at semctl running selinux testsuite

2013-05-06 Thread CAI Qian
x5e [ 3242.675012] [] x86_64_start_reservations+0x2a/0x2c [ 3242.675012] [] x86_64_start_kernel+0xce/0xd2 [ 3242.675012] Code: 89 e5 e8 48 eb 06 00 5d c3 66 0f 1f 44 00 00 0f 1f 44 00 00 55 48 89 e5 41 54 65 44 8b 24 25 1c b0 00 00 53 0f 1f 44 00 00 fb f4 <65> 44 8b 24 25 1c b0 00 00 0f 1f 44 00 00 5b 41 5c 5d c3

3.9.0: panic during boot at tick_do_broadcast

2013-05-06 Thread CAI Qian
e29222d88d06c928 ]--- [2.567755] Kernel panic - not syncing: Fatal exception in interrupt [3.600013] Shutting down cpus with NMI CAI Qian -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo inf

3.9.0: panic during boot - kernel BUG at include/linux/gfp.h:323!

2013-05-06 Thread CAI Qian
+0x2ad/0x340 [2.194238] RSP [2.198982] ---[ end trace 43bf8bb0334e5135 ]--- [2.205097] Kernel panic - not syncing: Attempted to kill init! exitcode=0x000b CAI Qian -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a m

Re: [PATCH] ext4: fix a big-endian bug when an extent is zeroed out

2013-04-21 Thread CAI Qian
Hi Ted, - Original Message - > From: "Theodore Ts'o" > To: "CAI Qian" > Cc: "Eric Whitney" , "Dmitry Monakhov" > , "Christian Kujau" > nerdbynature.de>, "LKML" , "linux-s390" > , "

[BUG] Fatal exception in interrupt - nf_nat_cleanup_conntrack during IPv6 tests

2013-04-09 Thread CAI Qian
f1b47d35f6 ]--- [ 3603.181234] Kernel panic - not syncing: Fatal exception in interrupt CAI Qian -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordom

Re: [PATCH] ext4: fix a big-endian bug when an extent is zeroed out

2013-04-08 Thread CAI Qian
Hello Ted, - Original Message - > From: "Theodore Ts'o" > To: "Eric Whitney" > Cc: "Dmitry Monakhov" , "Christian Kujau" > , "CAI Qian" > , "LKML" , "linux-s390" > , "Steve Best"

Re: bisected! (WAS Re: s390x: kernel BUG at fs/ext4/inode.c:1591!)

2013-04-03 Thread CAI Qian
> > [Text Documents:disable-es_lookup_extent.patch] With this patch, I cannot reproduce it any more. CAI Qian -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kern

Re: NULL pointer at kset_find_obj

2013-04-02 Thread CAI Qian
- Original Message - > From: "David Howells" > To: "CAI Qian" , ru...@rustcorp.com.au > Cc: dhowe...@redhat.com, "LKML" > Sent: Wednesday, April 3, 2013 1:38:50 AM > Subject: Re: NULL pointer at kset_find_obj > > CAI

Re: Loopback device hung [was Re: xfs deadlock on 3.9-rc5 running xfstests case #78]

2013-04-02 Thread CAI Qian
- Original Message - > From: "Jens Axboe" > To: "CAI Qian" > Cc: "Dave Chinner" , x...@oss.sgi.com, "LKML" > > Sent: Tuesday, April 2, 2013 5:00:47 PM > Subject: Re: Loopback device hung [was Re: xfs deadlock on 3.9-rc5 runnin

Re: Loopback device hung [was Re: xfs deadlock on 3.9-rc5 running xfstests case #78]

2013-04-02 Thread CAI Qian
- Original Message - > From: "Jens Axboe" > To: "Dave Chinner" > Cc: "CAI Qian" , x...@oss.sgi.com, "LKML" > > Sent: Tuesday, April 2, 2013 3:30:35 PM > Subject: Re: Loopback device hung [was Re: xfs deadlock on 3.9-rc5 ru

NULL pointer at kset_find_obj

2013-04-01 Thread CAI Qian
le+0xd7/0x120 [ 60.200012] [] system_call_fastpath+0x16/0x1b CAI Qian -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/

xfs deadlock on 3.9-rc5 running xfstests case #78

2013-04-01 Thread CAI Qian
Saw on almost all the servers range from x64, ppc64 and s390x with kernel 3.9-rc5 and xfsprogs-3.1.10. Never caught this in 3.9-rc4, so looks like something new broke this. Log is here with sysrq debug info. http://people.redhat.com/qcai/stable/log CAI Qian -- To unsubscribe from this list: send

bisected! (WAS Re: s390x: kernel BUG at fs/ext4/inode.c:1591!)

2013-04-01 Thread CAI Qian
Bisect indicated this is the culprit, 0e401101db49959f5783f6ee9e676124b5a183ac ext4: fix memory leakage in mext_check_coverage This following with Dmitry's debug patch applied, CAI Qian Ý 101.408610¨ ES cache assertation failed for inode: 753 es_cached ex Ý56/5/744 81/20¨ != found ex

Re: s390x: kernel BUG at fs/ext4/inode.c:1591!

2013-03-31 Thread CAI Qian
- Original Message - > From: "Dmitry Monakhov" > To: "CAI Qian" , "Theodore Ts'o" > Cc: "LKML" , "linux-s390" > , "Steve Best" > , linux-e...@vger.kernel.org > Sent: Monday, April 1, 2013 2:07:35 PM &g

Re: s390x: kernel BUG at fs/ext4/inode.c:1591!

2013-03-29 Thread CAI Qian
- Original Message - > From: "Theodore Ts'o" > To: "CAI Qian" > Cc: "LKML" , "linux-s390" > , "Steve Best" > , linux-e...@vger.kernel.org > Sent: Thursday, March 28, 2013 8:05:17 PM > Subject: Re: s390x: kerne

Re: s390x: kernel BUG at fs/ext4/inode.c:1591!

2013-03-29 Thread CAI Qian
- Original Message - > From: "Dmitry Monakhov" > To: "Theodore Ts'o" , "CAI Qian" > Cc: "LKML" , "linux-s390" > , "Steve Best" > , linux-e...@vger.kernel.org > Sent: Thursday, March 28, 2013 10:56:37 PM

Re: s390x: kernel BUG at fs/ext4/inode.c:1591!

2013-03-28 Thread CAI Qian
- Original Message - > From: "CAI Qian" > To: "LKML" > Cc: "linux-s390" , "Steve Best" > , "Theodore Ts'o" , > linux-e...@vger.kernel.org > Sent: Thursday, March 28, 2013 2:40:33 PM > Subject: s390x: kernel

Re: BUG at kmem_cache_alloc

2013-03-28 Thread CAI Qian
- Original Message - > From: "Dave Jones" > To: "CAI Qian" > Cc: "Christoph Lameter" , "David Rientjes" > , "linux-mm" , > linux-kernel@vger.kernel.org, "Oleg Nesterov" > Sent: Wednesday, March 27, 2013 3:5

s390x: kernel BUG at fs/ext4/inode.c:1591!

2013-03-27 Thread CAI Qian
System hung when running xfstests-dev 013 test case on an s390x guest. Never saw this on 3.9-rc3 before but need to double-check. Any idea? CAI Qian Ý 1113.795759¨ Ý cut here ¨ Ý 1113.795771¨ kernel BUG at fs/ext4/inode.c:1591! Ý 1113.795845¨ illegal operation: 0001 Ý#1

Re: BUG at kmem_cache_alloc

2013-03-26 Thread CAI Qian
- Original Message - > From: "Christoph Lameter" > To: "CAI Qian" > Cc: "David Rientjes" , "linux-mm" , > linux-kernel@vger.kernel.org, "Oleg > Nesterov" > Sent: Tuesday, March 26, 2013 2:00:16 AM > Subject: Re

Re: BUG at kmem_cache_alloc

2013-03-25 Thread CAI Qian
- Original Message - > From: "CAI Qian" > To: "David Rientjes" > Cc: "linux-mm" , linux-kernel@vger.kernel.org, "Oleg > Nesterov" > Sent: Monday, March 25, 2013 1:37:50 PM > Subject: Re: BUG at kmem_cache_alloc > &

Re: BUG at kmem_cache_alloc

2013-03-24 Thread CAI Qian
- Original Message - > From: "David Rientjes" > To: "CAI Qian" > Cc: "linux-mm" kvack.org>, linux-kernel@vger.kernel.org, "Oleg Nesterov" > > Sent: Friday, March 22, 2013 5:35:34 PM > Subject: Re: BUG at kmem_cache_alloc

BUG at kmem_cache_alloc

2013-03-21 Thread CAI Qian
ed+0x14/0x30 [12137.502332] [] ? kmem_alloc+0x67/0xf0 [xfs] [12137.537843] [] ? down_read+0x24/ Any idea? CAI Qian -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kern

Re: be2net failed to initialize regression

2013-03-10 Thread CAI Qian
- Original Message - > From: "Sathya Perla" > To: "CAI Qian" , net...@vger.kernel.org > Cc: "Ivan Vecera" , "LKML" > Sent: Friday, March 8, 2013 6:22:24 PM > Subject: RE: be2net failed to initialize regression > > > -

be2net failed to initialize regression

2013-03-08 Thread CAI Qian
FlexFabric 10Gb Adapter Confirmed no such problem using 3.7 kernel. Reproduced every time and still bisecting. Just want to give an early head-up to see if anyone saw sometime obvious. CAI Qian -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a

Re: 3.9-rc1: crash kernel panic - not syncing: Can not allocate SWIOTLB buffer earlier and can't now provide you with the DMA bounce buffer

2013-03-07 Thread CAI Qian
again... CAI Qian - Original Message - > From: "WANG Chao" > To: "LKML" vger.kernel.org> > Cc: "CAI Qian" > Sent: Friday, March 8, 2013 1:54:37 PM > Subject: 3.9-rc1: crash kernel panic - not syncing: Can not allocate SWIOTLB > buffer earlie

Re: change of behavior for madvise in 3.9-rc1

2013-03-07 Thread CAI Qian
- Original Message - > From: "Hugh Dickins" > To: "Shaohua Li" > Cc: "CAI Qian" , "linux-mm" , > "linux-kernel" , > "Rik van Riel" , "Sasha Levin" , > "Andrew Morton" > , "Linu

3.9-rc1 NULL pointer crash at find_pid_ns

2013-03-07 Thread CAI Qian
Just came across this during LTP run on a ppc64 system. Still trying to reproduce and possible bisect, but want to give an early head-up to see if anyone see anything obvious. CAI Qian [ 6476.040024] Unable to handle kernel paging request for data at address 0xfff0 [ 6476.040051

change of behavior for madvise in 3.9-rc1

2013-03-06 Thread CAI Qian
argument madvise024 TPASS : failed as expected: TEST_ERRNO=ENOMEM(12): Cannot allocate memory madvise025 TPASS : failed as expected: TEST_ERRNO=EBADF(9): Bad file descriptor CAI Qian -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a

Re: 3.8-rc5 xfs corruption

2013-01-31 Thread CAI Qian
- Original Message - > From: "Dave Chinner" > To: "CAI Qian" > Cc: x...@oss.sgi.com, linux-...@vger.kernel.org, "linux-kernel" > > Sent: Thursday, January 31, 2013 12:07:48 PM > Subject: Re: 3.8-rc5 xfs corruption > > On

3.8-rc5 xfs corruption

2013-01-30 Thread CAI Qian
address = 0xa0197411 Does this ring any bell? Regards, CAI Qian -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FA

Re: oom caused disk corruption on 3.7.1

2013-01-29 Thread CAI Qian
- Original Message - > From: "CAI Qian" > To: "linux-mm" kvack.org> > Cc: sta...@vger.kernel.org, "linux-kernel" vger.kernel.org> > Sent: Wednesday, January 9, 2013 5:50:53 PM > Subject: oom caused disk corruption on 3.7.1 > >

Re: [PATCH] slub: assign refcount for kmalloc_caches

2013-01-24 Thread CAI Qian
- Original Message - > From: "Greg Kroah-Hartman" > To: "Joonsoo Kim" > Cc: "Paul Hargrove" , "Pekka Enberg" > , linux-kernel@vger.kernel.org, > linux...@kvack.org, "Christoph Lameter" > Sent: Tuesday, January 15, 2013 3:23:36 AM > Subject: Re: [PATCH] slub: assign refcount for kmallo

Re: mmap regression on power7?

2013-01-09 Thread CAI Qian
- Original Message - > From: "CAI Qian" > To: "linux-mm" > Cc: "linux-kernel" > Sent: Tuesday, January 8, 2013 5:46:32 PM > Subject: mmap regression on power7? > > Noticed that this test is failing at the moment up to v3.8.0-r

mmap regression on power7?

2013-01-08 Thread CAI Qian
swap cache Swap cache stats: add 538, delete 482, find 127/141 Free swap = 5161024kB Total swap = 5177280kB 81920 pages RAM 900 pages reserved 47062 pages shared 39873 pages non-shared sd 0:0:1:0: Can't allocate memory for indirect table sd 0:0:1:0: couldn't convert cmd to srp_cmd CAI

Re: [PATCH 1/2] signals: sys_ssetmask() uses uninitialized newmask

2013-01-05 Thread CAI Qian
- Original Message - > From: "Oleg Nesterov" > To: "CAI Qian" , "Andrew Morton" > , "Linus Torvalds" > > Cc: "Linda Wang" , "Matt Zywusko" , > "Al Viro" , > linux-kernel@vger.kernel.org >

Re: load/unload dccp module caused oops

2013-01-04 Thread CAI Qian
- Original Message - > From: "Christoph Lameter" > To: "CAI Qian" > Cc: net...@vger.kernel.org, "Dave Miller" , > sta...@vger.kernel.org, "linux-kernel" > , "Pekka Enberg" , "Glauber > Costa" > Sent:

Re: load/unload dccp module caused oops

2013-01-03 Thread CAI Qian
uired to fix this. Keep digging... The kernel config used the SLUB, http://people.redhat.com/qcai/stable/.config CAI Qian - Original Message - > From: "CAI Qian" > To: net...@vger.kernel.org > Cc: "Dave Miller" , sta...@vger.kernel.org > Sent: Friday, Jan

Re: kernel compilation failure on power7 system

2012-12-30 Thread CAI Qian
Please ignore this as this turned out some unclean bits rendered the result unstable. It is now passed the complication testing. - Original Message - > From: "CAI Qian" > To: "Mihai Caraman" , "Benjamin Herrenschmidt" > > Cc: sta...@vger.

kernel compilation failure on power7 system

2012-12-30 Thread CAI Qian
powerpc64 architectures. - Used this config - http://people.redhat.com/qcai/stable/config-ppc system information here, # cat /proc/device-tree/model IBM,8231-E2B CAI Qian -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@

Re: boot panic regression introduced in 3.5-rc7

2012-07-30 Thread CAI Qian
- Original Message - > On 07/29/2012 08:51 PM, CAI Qian wrote: > > The bisecting pointed out this patch caused one of dell servers > > boot panic. > > > >5baefd6d84163443215f4a99f6a20f054ef11236 > >hrtimer: Update hrtimer base offsets each hrtime

boot panic regression introduced in 3.5-rc7

2012-07-29 Thread CAI Qian
808927] [] x86_64_start_reservations+0x131/0x135 [ 19.808927] [] x86_64_start_kernel+0x100/0x10f Kernel config and full dmesg are here. http://people.redhat.com/qcai/config http://people.redhat.com/qcai/dmesg CAI Qian -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body

Re: kernel panic - help!?

2007-12-28 Thread Cai Qian
Hi, From: Oliver Falk <[EMAIL PROTECTED]> Subject: Re: kernel panic - help!? Date: Fri, 28 Dec 2007 08:36:20 +0100 > On 12/12/2007 03:24 PM, Justin Banks wrote: > > Dave Young wrote > >> On Dec 12, 2007 5:17 PM, Oliver Falk <[EMAIL PROTECTED]> wrote: > >>> Can someone explain me that? > >>> > >>>