From mboxrd@z Thu Jan  1 00:00:00 1970
From: =?UTF-8?B?SsOpcsO0bWUgUG91bGlu?= <jeromepoulin-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Subject: Re: Kernel Bug: unable to handle kernel paging request
Date: Fri, 12 Jul 2013 14:58:55 -0400
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To: linux-nilfs <linux-nilfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>

The problem happened again today after resume, it seems to be more
frequent since last week. Here is a pastebin of the traceback +
sysrq+W.

http://pastebin.ca/2426059

On Fri, Jul 12, 2013 at 1:24 AM, J=C3=A9r=C3=B4me Poulin <jeromepoulin@=
gmail.com> wrote:
> In response to Vyacheslav Dubeyko, here is the problem I encounter,
> I'm not sure how to reproduce it now, but before deleting
> /var/cache/apt, I was able to reproduce it by issuing apt-get update.
> Now, it triggers when Ubuntu launches the apt daemon. Afterward, the
> whole system is frozen, not even SysRq+I would return me to the
> console.
>
> After setting the log in another partition, here is what I have in sy=
slog:
>
> Jul 12 01:08:43 bluetoothd[635]: Stopping discovery
> Jul 12 01:10:43 dbus[622]: [system] Activating service
> name=3D'org.freedesktop.PackageKit' (using servicehelper)
> Jul 12 01:10:43 AptDaemon: INFO: Initializing daemon
> Jul 12 01:10:43 AptDaemon.PackageKit: INFO: Initializing PackageKit c=
ompat layer
> Jul 12 01:10:43 dbus[622]: [system] Successfully activated service
> 'org.freedesktop.PackageKit'
> [ 1677.310656] BUG: unable to handle kernel paging request at 0000000=
000004c83
> [ 1677.310683] IP: [<ffffffffa024d0f2>] nilfs_end_page_io+0x12/0xd0 [=
nilfs2]
> [ 1677.310708] PGD 0
> [ 1677.310715] Oops: 0000 [#1] SMP
> [ 1677.310726] Modules linked in: pci_stub vboxpci(OF) vboxnetadp(OF)
> vboxnetflt(OF) vboxdrv(OF) nfsd(F) auth_rpcgss(F) nfs_acl(F) lockd(F)
> sunrpc(F) dm_crypt(F) bbswitch(OF) zram(C) intel_powerclamp kvm_intel
> kvm parport_pc(F) ppdev(F) lp(F) uvcvideo parport(F) crc32_pclmul(F)
> ghash_clmulni_intel(F) aesni_intel(F) snd_hda_codec_realtek
> snd_hda_intel snd_hda_codec aes_x86_64(F) asus_wmi lrw(F)
> sparse_keymap gf128mul(F) snd_hwdep(F) glue_helper(F) ablk_helper(F)
> arc4(F) snd_pcm(F) cryptd(F) joydev(F) videobuf2_vmalloc
> videobuf2_memops videobuf2_core mxm_wmi iwldvm snd_page_alloc(F) bnep
> snd_seq_midi(F) videodev snd_seq_midi_event(F) snd_rawmidi(F) mac8021=
1
> snd_seq(F) snd_seq_device(F) btusb snd_timer(F) iwlwifi snd(F)
> soundcore(F) microcode(F) psmouse(F) rfcomm bluetooth serio_raw(F)
> cfg80211 lpc_ich mei_me wmi mei mac_hid coretemp binfmt_misc(F) nilfs=
2
> btrfs(F) xor(F) zlib_deflate(F) raid6_pq(F) libcrc32c(F) nbd(F) i915
> i2c_algo_bit drm_kms_helper drm alx mdio ahci(F) libahci(F) vi
> deo(F) [last unloaded: ipmi_msghandler]
> [ 1677.311066] CPU: 7 PID: 414 Comm: segctord Tainted: GF        C O
> 3.10.0-2-generic #10-Ubuntu
> [ 1677.311096] Hardware name: ASUSTeK COMPUTER INC. N56VZ/N56VZ, BIOS
> N56VZ.216 12/06/2012
> [ 1677.311124] task: ffff88021c484650 ti: ffff88021eaa2000 task.ti:
> ffff88021eaa2000
> [ 1677.311155] RIP: 0010:[<ffffffffa024d0f2>]  [<ffffffffa024d0f2>]
> nilfs_end_page_io+0x12/0xd0 [nilfs2]
> [ 1677.311199] RSP: 0000:ffff88021eaa3d00  EFLAGS: 00010202
> [ 1677.311218] RAX: ffff880167625180 RBX: 0000000000004c83 RCX: 00000=
00000000034
> [ 1677.311248] RDX: 000000000000000d RSI: 0000000000000000 RDI: 00000=
00000004c83
> [ 1677.311277] RBP: ffff88021eaa3d08 R08: 7800000000000000 R09: a8001=
fa0bc000000
> [ 1677.311305] R10: 57ffca5f4be82f00 R11: 0000000000000019 R12: ffff8=
80213f46288
> [ 1677.311328] R13: 0000000000000000 R14: ffffea0007321f80 R15: ffff8=
80167625138
> [ 1677.311353] FS:  0000000000000000(0000) GS:ffff88022efc0000(0000)
> knlGS:0000000000000000
> [ 1677.311383] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 1677.311403] CR2: 0000000000004c83 CR3: 0000000001c0e000 CR4: 00000=
000001407e0
> [ 1677.311428] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 00000=
00000000000
> [ 1677.311455] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 00000=
00000000400
> [ 1677.311478] Stack:
> [ 1677.311487]  ffff880213f461e0 ffff88021eaa3e00 ffffffffa024e4c5
> ffffffff81019d09
> [ 1677.311520]  ffff88021c484650 ffff88021c484650 ffff88021c484650
> ffff880221282270
> [ 1677.311541]  ffff88021e691f58 ffff88021e691e00 ffff880221282260
> 000000031c484650
> [ 1677.311562] Call Trace:
> [ 1677.311575]  [<ffffffffa024e4c5>]
> nilfs_segctor_do_construct+0xf25/0x1b20 [nilfs2]
> [ 1677.311596]  [<ffffffff81019d09>] ? sched_clock+0x9/0x10
> [ 1677.311614]  [<ffffffffa024f3ab>]
> nilfs_segctor_construct+0x17b/0x290 [nilfs2]
> [ 1677.311636]  [<ffffffffa024f5e2>] nilfs_segctor_thread+0x122/0x3b0=
 [nilfs2]
> [ 1677.311657]  [<ffffffffa024f4c0>] ?
> nilfs_segctor_construct+0x290/0x290 [nilfs2]
> [ 1677.311677]  [<ffffffff8107cae0>] kthread+0xc0/0xd0
> [ 1677.311690]  [<ffffffff8107ca20>] ? kthread_create_on_node+0x120/0=
x120
> [ 1677.311709]  [<ffffffff816dd16c>] ret_from_fork+0x7c/0xb0
> [ 1677.311724]  [<ffffffff8107ca20>] ? kthread_create_on_node+0x120/0=
x120
> [ 1677.311740] Code: 2d ee e0 5b 5d c3 48 89 df e8 fb 25 ee e0 eb db
> 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48 85 ff 48 89 e5 53 48
> 89 fb 74 29 <48> 8b 07 f6 c4 08 0f 84 9c 00 00 00 48 8b 47 30 48 8b 0=
0
> a9 00
> [ 1677.311821] RIP  [<ffffffffa024d0f2>] nilfs_end_page_io+0x12/0xd0 =
[nilfs2]
> [ 1677.311841]  RSP <ffff88021eaa3d00>
> [ 1677.311850] CR2: 0000000000004c83
> [ 1677.320046] ---[ end trace 0e7c8d51bd66cbe6 ]---
> Jul 12 01:11:50 kernel: [ 1741.418989] SysRq : Emergency Sync
> Jul 12 01:11:53 kernel: [ 1744.788020] SysRq : Terminate All Tasks
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