[Unionfs] Device or resource busy
Sebastian Harl
sh at tokkee.org
Thu Mar 23 04:16:26 EST 2006
> > I'm using unionfs 1.1.3 with a 2.6.14.3 kernel (including the vserver patch).
> > I did the following unionfs mount
> >
> > mount -t unionfs -o dirs=/path1/dir1,ro none /path2/dir2
> >
> > After unmounting /path2/dir2, I tried to remove /path2/dir2 but I keep getting
> > the following error message:
> >
> > rmdir: cannot remove directory `/path2/dir2': Device or resource busy
> >
> > A while before that, I did an unionfs mount like the one above, did an umount
> > after that and mounted it again - a couple of seconds (minutes?) after that I
> > got a kernel oops.
>
> I'm not sure I follow the sequence of events...you do:
>
> 1) mount
> 2) unmount
> 3) rmdir (fails)
> ...
Yes, that's what I did. To get the kernel oops I did a mount again instead of
the rmdir. Btw. I tried but failed to reproduce the kernel oops...
> Can you post the Oops here?
Registering unionfs 1.1.3
unionfs_read_super: error while parsing options (err = -22)
unionfs_read_super: error while parsing options (err = -22)
Unable to handle kernel paging request at virtual address 2e8d0390
printing eip:
c0112736
*pde = 00000000
Oops: 0002 [#1]
Modules linked in: unionfs iptable_filter ip_tables tun sg 8250 serial_core usbcore intel_agp agpgart eeprom w83627hf hwmon_vid i2c_is
CPU: 0
EIP: 0060:[pgd_dtor+38/48] Not tainted VLI
EFLAGS: 00010006 (2.6.14.3-vs2.0.1)
EIP is at pgd_dtor+0x26/0x30
eax: d35c237b ebx: effeff80 ecx: 00000246 edx: 2e8d0384
esi: 00000001 edi: c3a35c20 ebp: 00000006 esp: eff89efc
ds: 007b es: 007b ss: 0068
Process events/0 (pid: 3, threadinfo=eff88000 task=c16d9030)
Stack: c0143ad9 00000006 effeff80 00000000 effede40 00000005 effeff80 effeffcc
c014524f effeff80 c3a35c20 00000000 00000000 effede50 c16d9158 00000293
00000000 c04b3ea4 c0145150 c0126f3d 00000000 eff89f6c 00000000 effeb798
Call Trace:
[slab_destroy+73/176] slab_destroy+0x49/0xb0
[cache_reap+255/384] cache_reap+0xff/0x180
[cache_reap+0/384] cache_reap+0x0/0x180
[worker_thread+429/592] worker_thread+0x1ad/0x250
[default_wake_function+0/32] default_wake_function+0x0/0x20
[default_wake_function+0/32] default_wake_function+0x0/0x20
[worker_thread+0/592] worker_thread+0x0/0x250
[kthread+170/176] kthread+0xaa/0xb0
[kthread+0/176] kthread+0x0/0xb0
[kernel_thread_helper+5/12] kernel_thread_helper+0x5/0xc
Code: c3 8d 74 26 00 9c 59 fa 8b 44 24 04 8b 15 b0 3f 4b c0 05 00 00 00 40 c1 e8 0c c1 e0 05 01 d0 8b 50 14 8b 40 0c 85 d2 89 10 74 03
<89> 42 0c 51 9d c3 8d 74 26 00 83 ec 08 b9 d0 00 00 00 a1 f4 b9
Thanks for your help.
Cheers,
Sebastian
--
Sebastian "tokkee" Harl
GnuPG-ID: 0x8501C7FC
http://tokkee.org/
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