Jørgen P. Tjernø wrote:
I'm not 100% certain what caused this, but as I mounted my samba-shares
(which is an exported aufs) and tried accessing them, I got the following:
ls: reading directory /home/daxxar/samba/videos.datamania: Input/output
error
So I tried checking on datamania if I could find the problem, and I
found the following in my dmesg:
I've changed my kernel, and the bug still happens, see attached
aufs.log. I'm running the newest cvs from 18th march (i.e. not the one
you just released), and vanilla 2.6.20.3-kernel. unmodified aufs.
compiled using make -f local.mk, INOTIFY support enabled - but not
mounted with it.
Relevant /proc/mounts:
/dev/mapper/main-storage /vault/lvm ext3 rw,data=ordered 0 0
/dev/disk/by-uuid/d61a06e4-2830-44e6-95ba-5e54e64a9736 /vault/disk1
ext3 rw,data=ordered 0 0
/dev/disk/by-uuid/e2bd2748-1050-4fd2-8c98-e90a6dc863e2 /vault/disk2
xfs rw 0 0
/dev/disk/by-uuid/2e35bd30-8879-4127-8ec0-1a2dcbdceca8 /vault/disk3
xfs rw 0 0
none /storage aufs
rw,xino=/vault/disk3/.aufs.xino,br:/vault/disk3=rw:/vault/disk2=rw:/vault/disk1=rw:/vault/lvm=rw
0 0
To my knowledge there wasn't much activity on the system at the time,
the closest sign of activity (the kernel BUG happened at 6.25AM
according to syslog) was the following in a sambalog:
write_data: write failure in writing to client 192.168.0.21. Error
Broken pipe
I have no other ideas as to what could've triggered it. :-(
Kindest regards, Jørgen.
[26065.464684] ------------[ cut here ]------------
[26065.467726] kernel BUG at /root/aufs.wcvs/aufs/fs/aufs/iinfo.c:62!
[26065.470901] invalid opcode: 0000 [#1]
[26065.473979] SMP
[26065.477012] Modules linked in: aufs
[26065.480125] CPU: 0
[26065.480130] EIP: 0060:[<d0c3264f>] Not tainted VLI
[26065.480137] EFLAGS: 00010206 (2.6.20.3 #5)
[26065.489349] EIP is at h_iptr_i+0x3f/0x80 [aufs]
[26065.492461] eax: 00000000 ebx: c0fa7638 ecx: ffff0001 edx: 00000003
[26065.495672] esi: 00000003 edi: c0fa7638 ebp: cef90760 esp: c20d5e74
[26065.498885] ds: 007b es: 007b ss: 0068
[26065.501833] Process find (pid: 6100, ti=c20d4000 task=c239f580 task.ti=c20d4000)
[26065.505103] Stack: 00000000 00000003 d0c32c52 cedc0800 ce738c5c cd8ca254 d0c2a80b 00018800
[26065.511459] cd8cae54 00000003 cef90778 00000003 00000003 c2fa0640 cd8cae54 d0c2c569
[26065.517713] 00000000 00018800 00000000 0300257e 00000000 cdfc661c cd8cae54 ce726a24
[26065.524023] Call Trace:
[26065.529968] [<d0c32c52>] test_ro+0x32/0x60 [aufs]
[26065.533167] [<d0c2a80b>] hidden_open+0x7b/0x110 [aufs]
[26065.536229] [<d0c2c569>] do_open_dir+0xa9/0x120 [aufs]
[26065.539439] [<d0c2b026>] do_open+0x96/0x110 [aufs]
[26065.542631] [<d0c2c4c0>] do_open_dir+0x0/0x120 [aufs]
[26065.545836] [<d0c2c4b0>] aufs_open_dir+0x0/0x10 [aufs]
[26065.549042] [<c016364a>] __dentry_open+0xba/0x1c0
[26065.552054] [<c0163805>] nameidata_to_filp+0x35/0x40
[26065.555221] [<c016385b>] do_filp_open+0x4b/0x60
[26065.558372] [<c01638ba>] do_sys_open+0x4a/0xe0
[26065.561516] [<c016398c>] sys_open+0x1c/0x20
[26065.564647] [<c0103050>] sysenter_past_esp+0x5d/0x81
[26065.567726] =======================
[26065.570761] Code: 50 ef 85 c0 75 2d 89 d8 e8 bf fc ff ff e8 1a 46 50 ef 85 c0 75 19 89 f0 84 c0 89 f6 78 0d 89 d8 e8 07 ff ff ff 89 f2 38 c2 7e 0c <0f> 0b eb fe 0f 0b eb fe 0f 0b eb fe 89 d8 e8 8e fc ff ff 89 f1
[26065.581338] EIP: [<d0c3264f>] h_iptr_i+0x3f/0x80 [aufs] SS:ESP 0068:c20d5e74
[26065.593937]
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