Discussion:
Kernel Oops 3.15.8-44
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bruce
2014-08-17 01:49:41 UTC
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Can anyone suggest what I might do to troubleshoot the issue below?

Aug 16 18:38:28 myhost myhost kernel: [ 1088.683384] BUG: unable to
handle kernel paging request at 000020000000001c
Aug 16 18:38:28 myhost myhost kernel: [ 1088.700663] IP:
[<ffffffff81140438>] find_get_entry+0x38/0xa0
Aug 16 18:38:28 myhost myhost kernel: [ 1088.718420] PGD 0
Aug 16 18:38:28 myhost myhost kernel: [ 1088.736230] Oops: 0000 [#1]
PREEMPT SMP
Aug 16 18:38:28 myhost myhost kernel: [ 1088.754186] Modules linked in:
joydev fuse bnep bluetooth 6lowpan_iphc rfkill iTCO_wdt
iTCO_vendor_support snd_hda_codec_hdmi snd_hda_c
odec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_controller
snd_hda_codec x86_pkg_temp_thermal intel_powerclamp r8169 sr_mod
coretemp snd_hwdep cdrom kvm_intel kvm crct10dif_pclmul
crc32_pclmul crc32c_intel ghash_clmulni_intel aesni_intel aes_x86_64 lrw
gf128mul glue_helper ablk_helper cryptd snd_pcm pcspkr i2c_i801 lpc_ich
mfd_core snd_seq snd_seq_device snd_timer sn
d firewire_ohci firewire_core crc_itu_t soundcore mii shpchp mei_me mei
battery sg dm_mod xhci_hcd i915 i2c_algo_bit drm_kms_helper drm fan
thermal button video processor scsi_dh_rdac scsi_
dh_hp_sw scsi_dh_alua scsi_dh_emc scsi_dh
Aug 16 18:38:28 myhost myhost kernel: [ 1088.843637] CPU: 0 PID: 3263
Comm: rsync Not tainted 3.15.8-44.g258e3b0-desktop #1
Aug 16 18:38:28 myhost myhost kernel: [ 1088.867519] Hardware name:
Shuttle Inc. SH67H/FH67H, BIOS 2.02 05/07/2012
Aug 16 18:38:28 myhost myhost kernel: [ 1088.891478] task:
ffff8807f3456210 ti: ffff8800d5130000 task.ti: ffff8800d5130000
Aug 16 18:38:28 myhost myhost kernel: [ 1088.915968] RIP:
0010:[<ffffffff81140438>] [<ffffffff81140438>] find_get_entry+0x38/0xa0
Aug 16 18:38:28 myhost myhost kernel: [ 1088.940933] RSP:
0018:ffff8800d5133bf0 EFLAGS: 00010246
Aug 16 18:38:28 myhost myhost kernel: [ 1088.966009] RAX:
ffff88027f5dc590 RBX: 0000200000000000 RCX: 00000000fffffffa
Aug 16 18:38:28 myhost myhost kernel: [ 1088.991279] RDX:
ffff88027f5dc590 RSI: 0000000000010c1c RDI: 0000000000000020
Aug 16 18:38:28 myhost myhost kernel: [ 1089.016320] RBP:
ffff880031056dc0 R08: ffff88027f5dc590 R09: ffff88027f5dc488
Aug 16 18:38:28 myhost myhost kernel: [ 1089.041668] R10:
ffff8800d5133be0 R11: ffff8800d54193c0 R12: 0000000000010c1c
Aug 16 18:38:28 myhost myhost kernel: [ 1089.067211] R13:
0000000000010c1c R14: 00000000000000d0 R15: ffff880031056db8
Aug 16 18:38:28 myhost myhost kernel: [ 1089.092686] FS:
00007f92f8bb6700(0000) GS:ffff88081f200000(0000) knlGS:0000000000000000
Aug 16 18:38:28 myhost myhost kernel: [ 1089.118417] CS: 0010 DS: 0000
ES: 0000 CR0: 0000000080050033
Aug 16 18:38:28 myhost myhost kernel: [ 1089.144077] CR2:
000020000000001c CR3: 00000000d5337000 CR4: 00000000000407f0
Aug 16 18:38:28 myhost myhost kernel: [ 1089.169884] Stack:
Aug 16 18:38:28 myhost myhost kernel: [ 1089.195729] ffff880031056db8
0000000000010c1c 00000000010200da ffffffff81140e2c
Aug 16 18:38:28 myhost myhost kernel: [ 1089.222377] ffffffff81833eb0
ffff8807f3644500 ffff880031056db8 ffffffff81140f8d
Aug 16 18:38:28 myhost myhost kernel: [ 1089.249189] 0000000010c1c000
ffff8807f3644500 ffff880031056c68 ffff8800d5133d10
Aug 16 18:38:28 myhost myhost kernel: [ 1089.276017] Call Trace:
Aug 16 18:38:28 myhost myhost kernel: [ 1089.302773]
[<ffffffff81140e2c>] find_lock_entry+0x1c/0x70
Aug 16 18:38:28 myhost myhost kernel: [ 1089.329991]
[<ffffffff81140f8d>] grab_cache_page_write_begin+0x5d/0xd0
Aug 16 18:38:28 myhost myhost kernel: [ 1089.357577]
[<ffffffff81232814>] ext4_da_write_begin+0x94/0x2e0
Aug 16 18:38:28 myhost myhost kernel: [ 1089.385249]
[<ffffffff81140681>] generic_perform_write+0xc1/0x1c0
Aug 16 18:38:28 myhost myhost kernel: [ 1089.413046]
[<ffffffff811426f3>] __generic_file_aio_write+0x1d3/0x3e0
Aug 16 18:38:28 myhost myhost kernel: [ 1089.440808]
[<ffffffff8114294b>] generic_file_aio_write+0x4b/0xc0
Aug 16 18:38:28 myhost myhost kernel: [ 1089.468481]
[<ffffffff81228932>] ext4_file_write+0x92/0x3b0
Aug 16 18:38:28 myhost myhost kernel: [ 1089.496385]
[<ffffffff811acdec>] do_sync_write+0x5c/0x90
Aug 16 18:38:28 myhost myhost kernel: [ 1089.524203]
[<ffffffff811ad525>] vfs_write+0xb5/0x1e0
Aug 16 18:38:28 myhost myhost kernel: [ 1089.551934]
[<ffffffff811ae022>] SyS_write+0x42/0xa0
Aug 16 18:38:28 myhost myhost kernel: [ 1089.579429]
[<ffffffff81614bad>] system_call_fastpath+0x1a/0x1f
Aug 16 18:38:28 myhost myhost kernel: [ 1089.606914]
[<00007f92f80d29e0>] 0x7f92f80d29df
Aug 16 18:38:28 myhost myhost kernel: [ 1089.634622] Code: fd 48 83 c5
08 53 e8 b8 88 f7 ff 4c 89 e6 48 89 ef e8 7d db 1c 00 48 85 c0 49 89 c0
74 3d 48 8b 18 48 85 db 74 25 f6 c
3 03 75 49 <8b> 53 1c 85 d2 74 d9 8d 72 01 48 8d 7b 1c 89 d0 3e 0f b1 73 1c
Aug 16 18:38:28 myhost myhost kernel: [ 1089.665058] RIP
[<ffffffff81140438>] find_get_entry+0x38/0xa0
Aug 16 18:38:28 myhost myhost kernel: [ 1089.694371] RSP <ffff8800d5133bf0>
Aug 16 18:38:28 myhost myhost kernel: [ 1089.723570] CR2: 000020000000001c
Aug 16 18:38:28 myhost myhost kernel: [ 1089.759887] ---[ end trace
a3b65352af4cb807 ]---
Jeff Mahoney
2014-08-18 12:56:29 UTC
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Post by bruce
Can anyone suggest what I might do to troubleshoot the issue below?
Aug 16 18:38:28 myhost myhost kernel: [ 1088.683384] BUG: unable to
handle kernel paging request at 000020000000001c
^-- this
makes me think you have bad memory.

I'd suggest running memtest86 for a while.

- -Jeff
Post by bruce
[<ffffffff81140438>] find_get_entry+0x38/0xa0
Aug 16 18:38:28 myhost myhost kernel: [ 1088.718420] PGD 0
Aug 16 18:38:28 myhost myhost kernel: [ 1088.736230] Oops: 0000 [#1]
PREEMPT SMP
Aug 16 18:38:28 myhost myhost kernel: [ 1088.754186] Modules linked
in: joydev fuse bnep bluetooth 6lowpan_iphc rfkill iTCO_wdt
iTCO_vendor_support snd_hda_codec_hdmi snd_hda_c
odec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_controller
snd_hda_codec x86_pkg_temp_thermal intel_powerclamp r8169 sr_mod
coretemp snd_hwdep cdrom kvm_intel kvm crct10dif_pclmul
crc32_pclmul crc32c_intel ghash_clmulni_intel aesni_intel aes_x86_64
lrw gf128mul glue_helper ablk_helper cryptd snd_pcm pcspkr i2c_i801
lpc_ich mfd_core snd_seq snd_seq_device snd_timer sn
d firewire_ohci firewire_core crc_itu_t soundcore mii shpchp mei_me
mei battery sg dm_mod xhci_hcd i915 i2c_algo_bit drm_kms_helper drm
fan thermal button video processor scsi_dh_rdac scsi_
dh_hp_sw scsi_dh_alua scsi_dh_emc scsi_dh
Aug 16 18:38:28 myhost myhost kernel: [ 1088.843637] CPU: 0 PID: 3263
Comm: rsync Not tainted 3.15.8-44.g258e3b0-desktop #1
Shuttle Inc. SH67H/FH67H, BIOS 2.02 05/07/2012
ffff8807f3456210 ti: ffff8800d5130000 task.ti: ffff8800d5130000
0010:[<ffffffff81140438>] [<ffffffff81140438>] find_get_entry+0x38/0xa0
0018:ffff8800d5133bf0 EFLAGS: 00010246
ffff88027f5dc590 RBX: 0000200000000000 RCX: 00000000fffffffa
ffff88027f5dc590 RSI: 0000000000010c1c RDI: 0000000000000020
ffff880031056dc0 R08: ffff88027f5dc590 R09: ffff88027f5dc488
ffff8800d5133be0 R11: ffff8800d54193c0 R12: 0000000000010c1c
0000000000010c1c R14: 00000000000000d0 R15: ffff880031056db8
00007f92f8bb6700(0000) GS:ffff88081f200000(0000) knlGS:0000000000000000
0000 ES: 0000 CR0: 0000000080050033
000020000000001c CR3: 00000000d5337000 CR4: 00000000000407f0
Aug 16 18:38:28 myhost myhost kernel: [ 1089.195729] ffff880031056db8
0000000000010c1c 00000000010200da ffffffff81140e2c
Aug 16 18:38:28 myhost myhost kernel: [ 1089.222377] ffffffff81833eb0
ffff8807f3644500 ffff880031056db8 ffffffff81140f8d
Aug 16 18:38:28 myhost myhost kernel: [ 1089.249189] 0000000010c1c000
ffff8807f3644500 ffff880031056c68 ffff8800d5133d10
Aug 16 18:38:28 myhost myhost kernel: [ 1089.302773]
[<ffffffff81140e2c>] find_lock_entry+0x1c/0x70
Aug 16 18:38:28 myhost myhost kernel: [ 1089.329991]
[<ffffffff81140f8d>] grab_cache_page_write_begin+0x5d/0xd0
Aug 16 18:38:28 myhost myhost kernel: [ 1089.357577]
[<ffffffff81232814>] ext4_da_write_begin+0x94/0x2e0
Aug 16 18:38:28 myhost myhost kernel: [ 1089.385249]
[<ffffffff81140681>] generic_perform_write+0xc1/0x1c0
Aug 16 18:38:28 myhost myhost kernel: [ 1089.413046]
[<ffffffff811426f3>] __generic_file_aio_write+0x1d3/0x3e0
Aug 16 18:38:28 myhost myhost kernel: [ 1089.440808]
[<ffffffff8114294b>] generic_file_aio_write+0x4b/0xc0
Aug 16 18:38:28 myhost myhost kernel: [ 1089.468481]
[<ffffffff81228932>] ext4_file_write+0x92/0x3b0
Aug 16 18:38:28 myhost myhost kernel: [ 1089.496385]
[<ffffffff811acdec>] do_sync_write+0x5c/0x90
Aug 16 18:38:28 myhost myhost kernel: [ 1089.524203]
[<ffffffff811ad525>] vfs_write+0xb5/0x1e0
Aug 16 18:38:28 myhost myhost kernel: [ 1089.551934]
[<ffffffff811ae022>] SyS_write+0x42/0xa0
Aug 16 18:38:28 myhost myhost kernel: [ 1089.579429]
[<ffffffff81614bad>] system_call_fastpath+0x1a/0x1f
Aug 16 18:38:28 myhost myhost kernel: [ 1089.606914]
[<00007f92f80d29e0>] 0x7f92f80d29df
Aug 16 18:38:28 myhost myhost kernel: [ 1089.634622] Code: fd 48 83 c5
08 53 e8 b8 88 f7 ff 4c 89 e6 48 89 ef e8 7d db 1c 00 48 85 c0 49 89
c0 74 3d 48 8b 18 48 85 db 74 25 f6 c
3 03 75 49 <8b> 53 1c 85 d2 74 d9 8d 72 01 48 8d 7b 1c 89 d0 3e 0f b1 73 1c
Aug 16 18:38:28 myhost myhost kernel: [ 1089.665058] RIP
[<ffffffff81140438>] find_get_entry+0x38/0xa0
Aug 16 18:38:28 myhost myhost kernel: [ 1089.694371] RSP
<ffff8800d5133bf0>
000020000000001c
Aug 16 18:38:28 myhost myhost kernel: [ 1089.759887] ---[ end trace
a3b65352af4cb807 ]---
- --
Jeff Mahoney
SUSE Labs

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