Re: linux-2.6.20-rc4-mm1 Reiser4 filesystem freeze and corruption

[Vince]

Zan Lynx wrote:
> I have been running 2.6.20-rc2-mm1 without problems, but both rc3-mm1
> and rc4-mm1 have been giving me these freezes.  They were happening
> inside X and without external console it was impossible to get anything,
> plus I was reluctant to test it since the freeze sometimes requires a
> full fsck.reiser4 --build-fs to recover the filesystem.
> [...]

Hi,

I don't know if it is related, but I've had the following BUG on 
2.6.20-rc4-mm1 (+ hot-fixes patches applied) :

-------------------
kernel BUG at fs/reiser4/plugin/item/extent_file_ops.c:973!
invalid opcode: 0000 [#1]
PREEMPT
last sysfs file: /devices/pci0000:00/0000:00:13.0/eth0/statistics/collisions
Modules linked in: binfmt_misc nfs lockd sunrpc radeon drm reiser4 
ati_remote fuse usbhid snd_via82xx snd_ac97_codec ac97_bus snd_pcm_oss 
snd_mixer_oss snd_pcm snd_page_alloc snd_mpu401_uart snd_seq_oss 
snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer 
snd_seq_device ohci1394 ieee1394 psmouse sr_mod cdrom sg ehci_hcd 
via_agp agpgart uhci_hcd usbcore i2c_viapro snd soundcore
CPU:    0
EIP:    0060:[<f9b8a2e0>]    Not tainted VLI
EFLAGS: 00010282   (2.6.20-rc4-mm1 #1)
EIP is at reiser4_write_extent+0xd5/0x626 [reiser4]
eax: ccca139c   ebx: 00000200   ecx: f5bec400   edx: ffffffe4
esi: 00000000   edi: f5bec414   ebp: da6ff274   esp: e17d7e34
ds: 007b   es: 007b   fs: 00d8  gs: 0033  ss: 0068
Process sstrip (pid: 23858, ti=e17d6000 task=d8ffc570 task.ti=e17d6000)
Stack: 00000000 00100100 00200200 00100100 00000034 bf826a50 e083ff00 
00000000
       c0000000 da6ff2c8 dccba4c0 00000005 000001ff 0000021e 00000000 
00000000
       00000000 00000000 00000004 f9b6cdad 00000000 00000004 00000004 
00000001
Call Trace:
 [<f9b6cdad>] reiser4_update_sd+0x22/0x28 [reiser4]
 [<c0162459>] notify_change+0x200/0x20f
 [<c01b89ed>] vsscanf+0x1e2/0x3ff
 [<f9b75c80>] write_unix_file+0x0/0x495 [reiser4]
 [<c013630d>] __remove_suid+0x10/0x14
 [<c013d847>] mark_page_accessed+0x1c/0x2e
 [<f9b5fbc2>] reiser4_txn_begin+0x1c/0x2e [reiser4]
 [<f9b8a20b>] reiser4_write_extent+0x0/0x626 [reiser4]
 [<f9b75eda>] write_unix_file+0x25a/0x495 [reiser4]
 [<c0142601>] __handle_mm_fault+0x2bd/0x79b
 [<f9b75c80>] write_unix_file+0x0/0x495 [reiser4]
 [<c01514e9>] vfs_write+0x8a/0x136
 [<c0151a27>] sys_write+0x41/0x67
 [<c0103c86>] sysenter_past_esp+0x5f/0x85
 =======================
Code: 04 89 0c 24 31 c9 89 5c 24 04 e8 52 fc ff ff 31 d2 e9 59 05 00 00 
64 a1 08 00 00 00 8b 80 b4 04 00 00 8b 40 38 83 78 08 00 74 04 <0f> 0b 
eb fe 8b 8c 24 e0 00 00 00 31 db 8b 01 8b 51 04 89 c1 0f
EIP: [<f9b8a2e0>] reiser4_write_extent+0xd5/0x626 [reiser4] SS:ESP 
0068:e17d7e34
 <4>reiser4[sstrip(23858)]: release_unix_file 
(fs/reiser4/plugin/file/file.c:2417)[vs-44]:
WARNING: out of memory?
reiser4[sstrip(23858)]: release_unix_file 
(fs/reiser4/plugin/file/file.c:2417)[vs-44]:
WARNING: out of memory?

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