On Mon, 07 Sep 2015 11:41:17 +0300, Nikolay Borisov wrote:
> Hello,
>
> On one of our servers I've observed the a kernel pannic
> happening with the following backtrace:
>
> [654405.527070] BUG: unable to handle kernel paging request at
> 0000000000028001
> [654405.527076] IP: [<ffffffff81182a59>] kmem_cache_alloc_node+0x99/0x1e0
> [654405.527085] PGD 14bef58067 PUD 2ab358067 PMD 0
Interesting! I can't offer much help but had a similar panic just the other day
for no apparent reason while running a bunch of compiles. First time I've seen
this with 4.1.6:
Sep 5 20:42:02 ragnarok kernel: BUG: unable to handle kernel paging request at
ffff8800e789b740
Sep 5 20:42:02 ragnarok kernel: IP: [<ffffffff8115bd4d>]
kmem_cache_alloc+0x6d/0x160
Sep 5 20:42:02 ragnarok kernel: PGD 1aa2067 PUD 61f7fd067 PMD 0
Sep 5 20:42:02 ragnarok kernel: Oops: 0000 [#1] SMP
Sep 5 20:42:02 ragnarok kernel: Modules linked in: auth_rpcgss oid_registry
nfsv4 nfs lockd grace fscache sunrpc autofs4 sch_fq_codel snd_hda_codec_realtek
x86_pkg_temp_thermal coretemp snd_hda_codec_generic crc32_pclmul crc32c_intel
aesni_intel radeon aes_x86_64 glue_helper snd_hda_codec_hdmi lrw gf128mul
ablk_helper cryptd i2c_algo_bit snd_usb_audio uvcvideo snd_hda_intel
drm_kms_helper snd_hda_controller snd_hwdep videobuf2_vmalloc snd_usbmidi_lib
videobuf2_memops snd_hda_codec videobuf2_core snd_rawmidi i2c_i801 ttm
snd_hda_core v4l2_common snd_seq_device videodev snd_pcm usbhid drm snd_timer
r8169 snd i2c_core mii soundcore parport_pc parport
Sep 5 20:42:02 ragnarok kernel: CPU: 0 PID: 32755 Comm: sh Not tainted 4.1.6 #1
Sep 5 20:42:02 ragnarok kernel: Hardware name: Gigabyte Technology Co., Ltd.
P67-DS3-B3/P67-DS3-B3, BIOS F1 05/06/2011
Sep 5 20:42:02 ragnarok kernel: task: ffff880569712e20 ti: ffff8804e4d90000
task.ti: ffff8804e4d90000
Sep 5 20:42:02 ragnarok kernel: RIP: 0010:[<ffffffff8115bd4d>]
[<ffffffff8115bd4d>] kmem_cache_alloc+0x6d/0x160
Sep 5 20:42:02 ragnarok kernel: RSP: 0018:ffff8804e4d93d88 EFLAGS: 00010282
Sep 5 20:42:02 ragnarok kernel: RAX: 0000000000000000 RBX: ffff8805e7eacce0
RCX: 000000000001f7e8
Sep 5 20:42:02 ragnarok kernel: RDX: 000000000001f7e7 RSI: 00000000000000d0
RDI: 0000000000018c70
Sep 5 20:42:02 ragnarok kernel: RBP: ffff8804e4d93dc8 R08: ffff88061f418c70
R09: 0000000000000000
Sep 5 20:42:02 ragnarok kernel: R10: ffffffff81748318 R11: ffffea00139bb500
R12: 00000000000000d0
Sep 5 20:42:02 ragnarok kernel: R13: ffff880606890600 R14: ffffffff8100d039
R15: ffff8800e789b740
Sep 5 20:42:02 ragnarok kernel: FS: 00007f9c1d2f2700(0000)
GS:ffff88061f400000(0000) knlGS:0000000000000000
Sep 5 20:42:02 ragnarok kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
Sep 5 20:42:02 ragnarok kernel: CR2: ffff8800e789b740 CR3: 00000005f68ce000
CR4: 00000000000406f0
Sep 5 20:42:02 ragnarok kernel: Stack:
Sep 5 20:42:02 ragnarok kernel: 0000000000000000 ffff88061f7e6c00
0000000000000002 ffff8805e7eacce0
Sep 5 20:42:02 ragnarok kernel: ffff880569712e20 0000000001200011
ffff8805e7eacce0 ffff880569712e20
Sep 5 20:42:02 ragnarok kernel: ffff8804e4d93de8 ffffffff8100d039
0000000000000000 00007f9c1d2f29d0
Sep 5 20:42:02 ragnarok kernel: Call Trace:
Sep 5 20:42:02 ragnarok kernel: [<ffffffff8100d039>]
arch_dup_task_struct+0x69/0x170
Sep 5 20:42:02 ragnarok kernel: [<ffffffff8104de8f>]
copy_process.part.8+0x14f/0x1760
Sep 5 20:42:02 ragnarok kernel: [<ffffffff8113909f>] ?
handle_mm_fault+0xd0f/0x13a0
Sep 5 20:42:02 ragnarok kernel: [<ffffffff81171c14>] ?
get_empty_filp+0xd4/0x1c0
Sep 5 20:42:02 ragnarok kernel: [<ffffffff8105b63f>] ?
recalc_sigpending+0x1f/0x60
Sep 5 20:42:02 ragnarok kernel: [<ffffffff8104f657>] do_fork+0xd7/0x370
Sep 5 20:42:02 ragnarok kernel: [<ffffffff8105ed07>] ? sigprocmask+0x57/0x90
Sep 5 20:42:02 ragnarok kernel: [<ffffffff8104f976>] SyS_clone+0x16/0x20
Sep 5 20:42:02 ragnarok kernel: [<ffffffff81571d17>]
system_call_fastpath+0x12/0x6a
Sep 5 20:42:02 ragnarok kernel: Code: 65 4c 03 05 ee e3 ea 7e 49 83 78 10 00
4d 8b 38 0f 84 b0 00 00 00 4d 85 ff 0f 84 a7 00 00 00 49 63 45 20 48 8d 4a 01
49 8b 7d 00 <49> 8b 1c 07 4c 89 f8 65 48 0f c7 0f 0f 94 c0 84 c0 74 b9 49 63
Sep 5 20:42:02 ragnarok kernel: RIP [<ffffffff8115bd4d>]
kmem_cache_alloc+0x6d/0x160
Sep 5 20:42:02 ragnarok kernel: RSP <ffff8804e4d93d88>
Sep 5 20:42:02 ragnarok kernel: CR2: ffff8800e789b740
Sep 5 20:42:02 ragnarok kernel: ---[ end trace e4478715791f5752 ]---
Sep 5 20:42:02 ragnarok kernel: BUG: unable to handle kernel paging request at
ffff8800e789b740
Sep 5 20:42:02 ragnarok kernel: IP: [<ffffffff8115bd4d>]
kmem_cache_alloc+0x6d/0x160
Sep 5 20:42:02 ragnarok kernel: PGD 1aa2067 PUD 61f7fd067 PMD 0
Sep 5 20:42:02 ragnarok kernel: Oops: 0000 [#2] SMP
Sep 5 20:42:02 ragnarok kernel: Modules linked in: auth_rpcgss oid_registry
nfsv4 nfs lockd grace fscache sunrpc autofs4 sch_fq_codel snd_hda_codec_realtek
x86_pkg_temp_thermal coretemp snd_hda_codec_generic crc32_pclmul crc32c_intel
aesni_intel radeon aes_x86_64 glue_helper snd_hda_codec_hdmi lrw gf128mul
ablk_helper cryptd i2c_algo_bit snd_usb_audio uvcvideo snd_hda_intel
drm_kms_helper snd_hda_controller snd_hwdep videobuf2_vmalloc snd_usbmidi_lib
videobuf2_memops snd_hda_codec videobuf2_core snd_rawmidi i2c_i801 ttm
snd_hda_core v4l2_common snd_seq_device videodev snd_pcm usbhid drm snd_timer
r8169 snd i2c_core mii soundcore parport_pc parport
Sep 5 20:42:02 ragnarok kernel: CPU: 0 PID: 32550 Comm: sh Tainted: G D
4.1.6 #1
Sep 5 20:42:02 ragnarok kernel: Hardware name: Gigabyte Technology Co., Ltd.
P67-DS3-B3/P67-DS3-B3, BIOS F1 05/06/2011
Sep 5 20:42:02 ragnarok kernel: task: ffff880602cd1ec0 ti: ffff8805b26ac000
task.ti: ffff8805b26ac000
Sep 5 20:42:02 ragnarok kernel: RIP: 0010:[<ffffffff8115bd4d>]
[<ffffffff8115bd4d>] kmem_cache_alloc+0x6d/0x160
Sep 5 20:42:02 ragnarok kernel: RSP: 0018:ffff8805b26afd88 EFLAGS: 00010282
Sep 5 20:42:02 ragnarok kernel: RAX: 0000000000000000 RBX: ffff8805e7ea8f60
RCX: 000000000001f7e8
Sep 5 20:42:02 ragnarok kernel: RDX: 000000000001f7e7 RSI: 00000000000000d0
RDI: 0000000000018c70
Sep 5 20:42:02 ragnarok kernel: RBP: ffff8805b26afdc8 R08: ffff88061f418c70
R09: 0000000000000000
Sep 5 20:42:02 ragnarok kernel: R10: ffffffff81748318 R11: ffffea0015a2ec00
R12: 00000000000000d0
Sep 5 20:42:02 ragnarok kernel: R13: ffff880606890600 R14: ffffffff8100d039
R15: ffff8800e789b740
Sep 5 20:42:02 ragnarok kernel: FS: 00007f9c1d2f2700(0000)
GS:ffff88061f400000(0000) knlGS:0000000000000000
Sep 5 20:42:02 ragnarok kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
Sep 5 20:42:02 ragnarok kernel: CR2: ffff8800e789b740 CR3: 00000005e3b76000
CR4: 00000000000406f0
Sep 5 20:42:02 ragnarok kernel: Stack:
Sep 5 20:42:02 ragnarok kernel: 0000000000000000 ffff88061f7e6c00
0000000000000002 ffff8805e7ea8f60
Sep 5 20:42:02 ragnarok kernel: ffff880602cd1ec0 0000000001200011
ffff8805e7ea8f60 ffff880602cd1ec0
Sep 5 20:42:02 ragnarok kernel: ffff8805b26afde8 ffffffff8100d039
0000000000000000 00007f9c1d2f29d0
Sep 5 20:42:02 ragnarok kernel: Call Trace:
Sep 5 20:42:02 ragnarok kernel: [<ffffffff8100d039>]
arch_dup_task_struct+0x69/0x170
Sep 5 20:42:02 ragnarok kernel: [<ffffffff8104de8f>]
copy_process.part.8+0x14f/0x1760
Sep 5 20:42:02 ragnarok kernel: [<ffffffff8126a936>] ?
security_file_alloc+0x16/0x20
Sep 5 20:42:02 ragnarok kernel: [<ffffffff81171c14>] ?
get_empty_filp+0xd4/0x1c0
Sep 5 20:42:02 ragnarok kernel: [<ffffffff81185966>] ?
__d_instantiate+0x96/0xf0
Sep 5 20:42:02 ragnarok kernel: [<ffffffff812c6b1a>] ?
find_next_zero_bit+0x1a/0x30
Sep 5 20:42:02 ragnarok kernel: [<ffffffff8105b63f>] ?
recalc_sigpending+0x1f/0x60
Sep 5 20:42:02 ragnarok kernel: [<ffffffff8104f657>] do_fork+0xd7/0x370
Sep 5 20:42:02 ragnarok kernel: [<ffffffff8105ed07>] ? sigprocmask+0x57/0x90
Sep 5 20:42:02 ragnarok kernel: [<ffffffff8104f976>] SyS_clone+0x16/0x20
Sep 5 20:42:02 ragnarok kernel: [<ffffffff81571d17>]
system_call_fastpath+0x12/0x6a
Sep 5 20:42:02 ragnarok kernel: Code: 65 4c 03 05 ee e3 ea 7e 49 83 78 10 00
4d 8b 38 0f 84 b0 00 00 00 4d 85 ff 0f 84 a7 00 00 00 49 63 45 20 48 8d 4a 01
49 8b 7d 00 <49> 8b 1c 07 4c 89 f8 65 48 0f c7 0f 0f 94 c0 84 c0 74 b9 49 63
Sep 5 20:42:02 ragnarok kernel: RIP [<ffffffff8115bd4d>]
kmem_cache_alloc+0x6d/0x160
Sep 5 20:42:02 ragnarok kernel: RSP <ffff8805b26afd88>
Sep 5 20:42:02 ragnarok kernel: CR2: ffff8800e789b740
Sep 5 20:42:02 ragnarok kernel: ---[ end trace e4478715791f5753 ]---
..etc.
I also have all of
CONFIG_SLUB_DEBUG=y
CONFIG_SLUB=y
CONFIG_SLUB_CPU_PARTIAL=y
set.
Hope this helps somewhat.
Holger
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