Re: Btrfs fails randomly

["Lex \"x-demon\" Rivera" <x-demon@x-demon.org>]

Patched, installed, running. (After some sex with vermagic, but in work=
s)
Will report after 6-7 hours of running without failures.


Best regards, Lex "x-demon" Rivera
|| ICQ 625558 | Jabber x-demon@x-demon.org | http://x-demon.org ||




On Mon, Dec 28, 2009 at 8:01 AM, Yan, Zheng <yanzheng@21cn.com> wrote:
> On Sun, Dec 27, 2009 at 3:34 PM, Lex "x-demon" Rivera
> <x-demon@x-demon.org> wrote:
>> Btrfs fails randomly, after this error in dmesg i can't exec any app=
s,
>> but can read/write to disc. Log attached, it's always the same, exce=
pt
>> process that caused this.
>>
>> t fs/btrfs/ordered-data.c:672!
>> invalid opcode: 0000 [#1] PREEMPT SMP
>> last sysfs file: /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_fr=
eq
>> Modules linked in: ipv6 fuse aes_i586 aes_generic rfcomm sco bridge
>> stp llc bnep l2cap crc16 ext3 jbd mbcache arc4 ecb b43 btusb
>> snd_hda_codec_analog bluetooth snd_seq_dummy pciehp uvcvideo mac8021=
1
>> pci_hotplug videodev v4l1_compat cfg80211 snd_seq_oss rfkill
>> snd_seq_midi_event cpufreq_conservative snd_hda_intel iTCO_wdt ssb
>> snd_seq iTCO_vendor_support snd_hda_codec snd_seq_device joydev
>> snd_hwdep snd_pcm_oss snd_mixer_oss hp_accel snd_pcm mmc_core
>> lis3lv02d acpi_cpufreq snd_timer uhci_hcd snd ehci_hcd fan
>> input_polldev pcmcia soundcore sky2 usbcore led_class wmi
>> snd_page_alloc pcmcia_core evdev psmouse ac thermal battery serio_ra=
w
>> pcspkr sg freq_table processor rtc_cmos rtc_core rtc_lib sd_mod
>> ata_piix ahci libata scsi_mod btrfs crc32c libcrc32c zlib_deflate lz=
o
>> lzo_decompress lzo_compress i915 drm_kms_helper drm i2c_algo_bit
>> button i2c_core video output intel_agp agpgart
>>
>> Pid: 15778, comm: iron Not tainted (2.6.32-ZEN #1) HP 2140
>> EIP: 0060:[<f85bd96b>] EFLAGS: 00210287 CPU: 1
>> EIP is at btrfs_ordered_update_i_size+0x40b/0x750 [btrfs]
>> EAX: 00006000 EBX: 00005e7d ECX: a40e8f80 EDX: 00000000
>> ESI: 00000000 EDI: b2dc5684 EBP: 00000000 ESP: a3157e74
>> =C2=A0DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
>> =C2=A0Process iron (pid: 15778, ti=3Da3156000 task=3Db68e6bd0 task.t=
i=3Da3156000)
>> =C2=A0Stack:
>> =C2=A000005e7c 00000000 00000020 00000000 00000000 22222222 22222222=
 b2dc5570
>> =C2=A0<0> b2dc5550 00000000 b2dc55cc f858cd75 f6983000 00000000 0000=
5e7d fffff000
>> =C2=A0<0> b2dc5570 0000d000 00000000 a3157f34 00000000 b2dc5684 0000=
0000 f85ac3f7
>> =C2=A0Call Trace:
>> [<f858cd75>] ? __find_space_info+0x55/0x60 [btrfs]
>> [<f85ac3f7>] ? btrfs_setattr+0x1e7/0x310 [btrfs]
>> [<810f7324>] ? notify_change+0x134/0x320
>> [<812b144c>] ? __mutex_lock_slowpath+0x1ec/0x2c0
>> [<810e1721>] ? do_truncate+0x61/0x90
>> [<810cf186>] ? mmap_region+0x1b6/0x450
>> [<810e1842>] ? do_sys_ftruncate+0xf2/0x150
>> [<810e18cd>] ? sys_ftruncate64+0x2d/0x40
>> [<810039f3>] ? sysenter_do_call+0x12/0x28
>> Code: 9c 00 00 00 85 c0 74 30 8b 50 bc 8d 48 b8 8b 40 b8 39 d6 72 23
>> 77 04 39 c3 72 1d 03 41 10 13 51 14 39 d6 72 06 77 11 39 c3 73 0d <0=
f>
>> 0b 8d 76 00 eb fb 8d b6 00 00 00 00 8b 44 24 20 8b 88 98 00
>> EIP: [<f85bd96b>] btrfs_ordered_update_i_size+0x40b/0x750 [btrfs]
>> SS:ESP 0068:a3157e74
>> ---[ end trace 1adab407699b39c3 ]---
>>
>>
> Thank you for reporting this. Please try patch attached below.
>
> Yan, Zheng
>
> ---
> diff -urp 1/fs/btrfs/ordered-data.c 2/fs/btrfs/ordered-data.c
> --- 1/fs/btrfs/ordered-data.c =C2=A0 2009-12-28 12:23:42.088546898 +0=
800
> +++ 2/fs/btrfs/ordered-data.c =C2=A0 2009-12-28 12:57:24.250542741 +0=
800
> @@ -626,6 +626,8 @@ int btrfs_ordered_update_i_size(struct i
>
> =C2=A0 =C2=A0 =C2=A0 =C2=A0if (ordered)
> =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0offset =3D ent=
ry_end(ordered);
> + =C2=A0 =C2=A0 =C2=A0 else
> + =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 offset =3D ALIGN(o=
ffset, BTRFS_I(inode)->root->sectorsize);
>
> =C2=A0 =C2=A0 =C2=A0 =C2=A0mutex_lock(&tree->mutex);
> =C2=A0 =C2=A0 =C2=A0 =C2=A0disk_i_size =3D BTRFS_I(inode)->disk_i_siz=
e;
> ---
>
--
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