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SubjectRe: endless sync on bdi_sched_wait()? 2.6.33.1
Date
> > SUPERPROXY ~ # cat /proc/1753/stack
> > [<c019a93c>] bdi_sched_wait+0x8/0xc
> > [<c019a807>] wait_on_bit+0x20/0x2c
> > [<c019a9af>] sync_inodes_sb+0x6f/0x10a
> > [<c019dd53>] __sync_filesystem+0x28/0x49
> > [<c019ddf3>] sync_filesystems+0x7f/0xc0
> > [<c019de7a>] sys_sync+0x1b/0x2d
> > [<c02f7a25>] syscall_call+0x7/0xb
> > [<ffffffff>] 0xffffffff
>
> Hmm, I guess you are observing the problem reported in
> https://bugzilla.kernel.org/show_bug.cgi?id=14830
> There seem to be several issues in the per-bdi writeback code that
> cause sync on a busy filesystem to last almost forever. To that bug are
> attached two patches that fix two issues but apparently it's not all.
> I'm still looking into it...
>
> Honza
>
Hi

Thanks for info, i will try to test them as soon as i finish with my current
issues, and kernel will reach at least rc5, because servers where i test -
loaded and production.


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