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SubjectRe: ext3 umount hangs
Andrew Morton wrote:

>Steven Pratt <slpratt@austin.ibm.com> wrote:
>
>
>>Has anyone else seen hangs trying to umount ext3 volumes?
>>
>>
>Could you please debug it a bit? sysrq-T, etc?
>
Here is the trace of the hung process:

umount D 00000001 290213268 18747 18746 (NOTLB)
Call Trace:
[<c01a1ae8>] journal_kill_thread+0xa8/0xe0
[<c011c780>] default_wake_function+0x0/0x30
[<c016d8c5>] destroy_inode+0x35/0x60
[<c01a2b80>] journal_destroy+0x10/0x1c0
[<c019a97e>] ext3_xattr_put_super+0x1e/0x30
[<c0196209>] ext3_put_super+0x29/0x1a0
[<c015b64b>] generic_shutdown_super+0x16b/0x180
[<c015c03d>] kill_block_super+0x1d/0x50
[<c015b3fd>] deactivate_super+0x5d/0x90
[<c0170fef>] sys_umount+0x3f/0xa0
[<c0171067>] sys_oldumount+0x17/0x20
[<c010afaf>] syscall_call+0x7/0xb


Here is a link to the console log with full sysrq trace:

http://www-124.ibm.com/developerworks/opensource/linuxperf/logs/ext3umount

Steve

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