On Wed, 2007-09-19 at 13:44 +0200, Oliver Neukum wrote:
> Am Donnerstag 13 September 2007 schrieb Dave Kleikamp:
> > On Wed, 2007-09-12 at 18:58 +0200, Michal Piotrowski wrote:
> >
> > > Subject : umount triggers a warning in jfs and takes almost a minute
> > > References : http://lkml.org/lkml/2007/9/4/73
> > > Last known good : ?
> > > Submitter : Oliver Neukum <[email protected]>
> > > Caused-By : ?
> > > Handled-By : ?
> > > Status : unknown
> >
> > I'm still waiting to hear from Oliver whether or not this is actually a
> > regression.
>
> OK, I've done test. On 2.6.22 I was unable to trigger the warning.
> On 2.6.23-rc6 I get the following warning in about 3/4 of all unmounts:
>
> Sep 19 13:08:04 oenone kernel: WARNING: at fs/jfs/jfs_logmgr.c:1643 jfs_flush_journal()
> Sep 19 13:08:04 oenone kernel:
> Sep 19 13:08:04 oenone kernel: Call Trace:
> Sep 19 13:08:04 oenone kernel: [<ffffffff8860f962>] :jfs:jfs_flush_journal+0x26a/0x27d
> Sep 19 13:08:04 oenone kernel: [<ffffffff8029fca1>] dispose_list+0xde/0xf7
> Sep 19 13:08:04 oenone kernel: [<ffffffff885fd003>] :jfs:jfs_umount+0x30/0xe5
> Sep 19 13:08:04 oenone kernel: [<ffffffff885f9a31>] :jfs:jfs_put_super+0xd/0x5e
> Sep 19 13:08:04 oenone kernel: [<ffffffff8028ef8f>] generic_shutdown_super+0x60/0xf0
> Sep 19 13:08:04 oenone kernel: [<ffffffff8028f02c>] kill_block_super+0xd/0x1e
> Sep 19 13:08:04 oenone kernel: [<ffffffff8028f0f7>] deactivate_super+0x6a/0x82
> Sep 19 13:08:04 oenone kernel: [<ffffffff802a2184>] sys_umount+0x249/0x25a
> Sep 19 13:08:04 oenone kernel: [<ffffffff802616ff>] audit_syscall_entry+0x141/0x174
> Sep 19 13:08:04 oenone kernel: [<ffffffff8020be8c>] tracesys+0xdc/0xe1
> Sep 19 13:08:04 oenone kernel:
>
> This is on a partition of a usb mass storage device with 2K sector size.
> IMHO it is a regression. I am recompiling with CONFIG_JFS_DEBUG.
Looks like a regression then. I'll take a look at the debug output and get back to you.
Shaggy
--
David Kleikamp
IBM Linux Technology Center
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