Well, aio-stress seems to run better with your patch (no Oops) but
I think we still have a problem in AIO. It looks like aio-stress
is stuck (unable to kill it).
Here is the sysrq-t output:
aio-stress D ffff8101be224970 0 15430 1 15429
(NOTLB)
ffff8101be21bd58 0000000000000082 ffff8101be21be18 0000000000010000
ffff8101be2248b0 ffff810100000074 000000000000007a
ffff810198868e90
ffff8101d6daaf50 ffff8101d6dab160
Call Trace:<ffffffff804013c8>{__down+152}
<ffffffff80132750>{default_wake_function+0}
<ffffffff80402d39>{__down_failed+53}
<ffffffff80161f13>{.text.lock.filemap+65}
<ffffffff801a23c0>{aio_pwrite+0}
<ffffffff801a23e1>{aio_pwrite+33}
<ffffffff801a35d0>{__aio_run_iocbs+384}
<ffffffff801a401e>{io_submit_one+494}
<ffffffff801a4149>{sys_io_submit+217}
<ffffffff8010e5ce>{system_call+126}
Top shows:
top - 12:22:33 up 2:57, 2 users, load average: 5.08, 5.08, 5.01
Tasks: 79 total, 1 running, 77 sleeping, 0 stopped, 1 zombie
Cpu(s): 0.0% us, 25.0% sy, 0.0% ni, 75.0% id, 0.0% wa, 0.0% hi,
0.0% si
Mem: 7148100k total, 176708k used, 6971392k free, 18600k buffers
Swap: 1048784k total, 0k used, 1048784k free, 44708k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
15425 root 16 0 0 0 0 Z 99.8 0.0 172:17.98 aio-stress
<defunct>
15803 root 16 0 4048 1116 820 R 0.3 0.0 0:00.51 top
Thanks,
Badari
On Wed, 2005-03-09 at 09:35, Badari Pulavarty wrote:
> Your patch seems to have helped. I don't see the Oops anymore - my
> tests are still running (past 1 hour - it used to panic in 10 min).
>
> Thanks,
> Badari
>
> On Wed, 2005-03-09 at 04:12, David Howells wrote:
> > The attached patch makes read/write semaphores use interrupt disabling
> > spinlocks, thus rendering the up functions and trylock functions available
> > for
> > use in interrupt context.
> >
> > I've assumed that the normal down functions must be called with interrupts
> > enabled (since they might schedule), and used the irq-disabling spinlock
> > variants that don't save the flags.
> >
> > Signed-Off-By: David Howells <[EMAIL PROTECTED]>
> > ---
> > warthog>diffstat -p1 rwsem-irqspin-2611mm2.diff
>
>
> --
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> see: http://www.kvack.org/aio/
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