[email protected] wrote on 22/11/2007 16:28:22:
> [email protected] wrote on 22/11/2007 16:34:01:
>
> > On Thursday, 22 of November 2007, Tvrtko A. Ursulin wrote:
> > >
> > > Hi all,
> > >
> > > So as the subject says - pdflush is stuck i D state which means
> > constant load
> > > average of at least one:
> > >
> > > root 151 0.0 0.0 0 0 ? D Nov20 0:33
> [pdflush]
> >
> > Hm, this is supposed to be fixed. Please see:
> > http://bugzilla.kernel.org/show_bug.cgi?id=9323
>
> Doesn't look like the same bug to me - I have only ever seen pdflush get
> stuck in D, not random processes.
>
> Also, I can confirm that -rc3 I am running contains the patch referenced
> in your bugzilla link above.
Here is a trace for good and bad pdflush processes:
Nov 22 16:35:09 oxygene kernel: =======================
Nov 22 16:35:09 oxygene kernel: pdflush S c014fe4e 0 150 2
Nov 22 16:35:09 oxygene kernel: 00000000 00000046 00000000 c014fe4e
f7c30fa4 c014f9c6 f7ce8560 f7ce869c
Nov 22 16:35:09 oxygene kernel: c201e100 00000001 fffffffc 00000002
00000000 00000000 00000000 00000000
Nov 22 16:35:09 oxygene kernel: 00000021 f7c30fc8 c014fe4e 00000000
00000000 c014ff09 00000202 f7ce8560
Nov 22 16:35:09 oxygene kernel: Call Trace:
Nov 22 16:35:09 oxygene kernel: [pdflush+0/434] pdflush+0x0/0x1b2
Nov 22 16:35:09 oxygene kernel: [background_writeout+125/173]
background_writeout+0x7d/0xad
Nov 22 16:35:09 oxygene kernel: [pdflush+0/434] pdflush+0x0/0x1b2
Nov 22 16:35:09 oxygene kernel: [pdflush+187/434] pdflush+0xbb/0x1b2
Nov 22 16:35:09 oxygene kernel: [kthread+56/96] kthread+0x38/0x60
Nov 22 16:35:09 oxygene kernel: [kthread+0/96] kthread+0x0/0x60
Nov 22 16:35:09 oxygene kernel: [kernel_thread_helper+7/16]
kernel_thread_helper+0x7/0x10
Nov 22 16:35:09 oxygene kernel: =======================
Nov 22 16:35:09 oxygene kernel: pdflush D f7c3aef4 0 151 2
Nov 22 16:35:09 oxygene kernel: 0b83b953 00000046 00000002 f7c3aef4
f7c3aeec 00000000 f7ce8ac0 f7ce8bfc
Nov 22 16:35:09 oxygene kernel: c201e100 00000001 f7c3af18 0b83b9cc
f7c3af18 00000003 00000000 00000001
Nov 22 16:35:09 oxygene kernel: 00000000 f7c3af18 0b83b9cc f7c3af70
00000000 c027ddb7 f781e000 c010490c
Nov 22 16:35:09 oxygene kernel: Call Trace:
Nov 22 16:35:09 oxygene kernel: [schedule_timeout+112/141]
schedule_timeout+0x70/0x8d
Nov 22 16:35:09 oxygene kernel: [apic_timer_interrupt+40/48]
apic_timer_interrupt+0x28/0x30
Nov 22 16:35:09 oxygene kernel: [process_timeout+0/5]
process_timeout+0x0/0x5
Nov 22 16:35:09 oxygene kernel: [schedule_timeout+107/141]
schedule_timeout+0x6b/0x8d
Nov 22 16:35:09 oxygene kernel: [io_schedule_timeout+27/36]
io_schedule_timeout+0x1b/0x24
Nov 22 16:35:09 oxygene kernel: [congestion_wait+80/100]
congestion_wait+0x50/0x64
Nov 22 16:35:09 oxygene kernel: [autoremove_wake_function+0/53]
autoremove_wake_function+0x0/0x35
Nov 22 16:35:09 oxygene kernel: [pdflush+0/434] pdflush+0x0/0x1b2
Nov 22 16:35:09 oxygene kernel: [wb_kupdate+152/219] wb_kupdate+0x98/0xdb
Nov 22 16:35:09 oxygene kernel: [pdflush+282/434] pdflush+0x11a/0x1b2
Nov 22 16:35:09 oxygene kernel: [wb_kupdate+0/219] wb_kupdate+0x0/0xdb
Nov 22 16:35:09 oxygene kernel: [kthread+56/96] kthread+0x38/0x60
Nov 22 16:35:09 oxygene kernel: [kthread+0/96] kthread+0x0/0x60
Nov 22 16:35:09 oxygene kernel: [kernel_thread_helper+7/16]
kernel_thread_helper+0x7/0x10
Nov 22 16:35:09 oxygene kernel: =======================
Tvrtko
Sophos Plc, The Pentagon, Abingdon Science Park, Abingdon,
OX14 3YP, United Kingdom.
Company Reg No 2096520. VAT Reg No GB 348 3873 20.
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