Hi, If you have the vmlinux image for the kernel you were running at the time, the crash occured, could you post the output of addr2line -f -e path/to/vmlinux ffffffff8115bd4d to see if it also fails in get_freepointer.
Regards, Nikolay On 09/07/2015 01:37 PM, Holger Hoffstätte wrote: > 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 > > -- > 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/ > -- 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/
