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Assertion failure in ext3_put_super() at fs/ext3/super.c:412



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hi,

today i re-organized my data, lots of "mv" and "cp".
then, upon unmounting a ext3 partition the following was shown on the
console:

(the leading "Mar 22 02:40:04 sheep kernel:" is cut here)
- -------------------------------
~ sb orphan head is 940994
~ sb_info orphan list:
~ inode sdd4:940994 at cf852874: mode 40755, nlink 0, next 486721
~ inode sdd4:486721 at cfce8674: mode 40755, nlink 0, next 551857
~ inode sdd4:551857 at cfce80d4: mode 40755, nlink 0, next 0
~ Assertion failure in ext3_put_super() at fs/ext3/super.c:412:
"list_empty(&sbi->s_orphan)"
~ ------------[ cut here ]------------
~ kernel BUG at fs/ext3/super.c:412!
~ invalid operand: 0000 [#1]
~ PREEMPT
~ CPU:    0
~ EIP:    0060:[<c0190de7>]    Not tainted
~ EFLAGS: 00010286
~ EIP is at ext3_put_super+0x137/0x1a0
~ eax: 0000005e   ebx: c138d364   ecx: 00000001   edx: c03255b8
~ esi: c138d2e0   edi: cf8e5400   ebp: c1fb6000   esp: c1fb7f10
~ ds: 007b   es: 007b   ss: 0068
~ Process umount (pid: 21926, threadinfo=c1fb6000 task=cfa20c00)
~ Stack: c02f9d80 c02e82eb c02f702e 0000019c c02f7013 cf8e544c cf8e5400
c0329ca0
~ c0157526 cf8e5400 cf8e5400 cf824060 c0329e20 c015811d cf8e5400 0804d218
~ cf8e5400 c1fb6000 c015725f cf8e5400 c03bfee0 00000000 c1fb7f7c 0804d218
~ Call Trace:
~ [<c0157526>] generic_shutdown_super+0x176/0x190
~ [<c015811d>] kill_block_super+0x1d/0x40
~ [<c015725f>] deactivate_super+0x5f/0xc0
~ [<c016d4af>] sys_umount+0x3f/0xa0
~ [<c016d525>] sys_oldumount+0x15/0x20
~ [<c010908b>] syscall_call+0x7/0xb

~ Code: 0f 0b 9c 01 2e 70 2f c0 e9 60 ff ff ff 89 74 24 04 89 3c 24
- -------------------------------

the filesystem here was existing for a year now, passed regular checks
and did not show any corruptions. it has never shown anything similar in
the logs and i was not able to reproduce it. i have to add, that i did
something strange before unmounting. the partition was mounted under
"/data", but "umount /data" failed (busy). "lsof" has shown some files
locked by the apache webserver marked "deleted". it was true, i mv'ed
files to another place, apache was still running and apparently locking
files. i then killed the apache process, no locked files any more, so i
was able to "umount /data" --> then the error shown above happened.
after the error i was not able to "/bin/sync" nor to SYSRQ+S, i had to
reboot.

probably not a bug, but i found it worth to report.

this all happend with a vanilla 2.6.4 (not tainted), compiled with
gcc-3.3.3 on i386 (Pentium3), IBM-ESXS disks.

Thanks,
Christian.
- --
BOFH excuse #87:

Password is too complex to decrypt
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