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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:
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