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Date: Sat, 28 Apr 2007 20:03:07 +0200
From: Thomas Meyer <thomas@...3r.de>
To: Michal Piotrowski <michal.k.k.piotrowski@...il.com>
CC: stable@...nel.org, Andrew Morton <akpm@...ux-foundation.org>,
Linus Torvalds <torvalds@...ux-foundation.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
linux-acpi@...r.kernel.org,
Riccardo Ricci <rricci@...vanetmore.it>,
"Udo A. Steinberg" <us15@...inf.tu-dresden.de>,
Len Brown <len.brown@...el.com>,
David Brownell <david-b@...bell.net>,
Jeff Mahoney <jeffm@...e.com>, reiserfs-dev@...esys.com,
Jeff Chua <jeff.chua.linux@...il.com>,
Francois SIMOND <curio@...e.fr>,
Stephen Hemminger <shemminger@...ux-foundation.org>,
netdev@...r.kernel.org,
Håkan Lindqvist <lindqvist@...star.se>,
Vincent Frentzel <zcecc22@....ac.uk>,
François Valenduc <francois.valenduc@...net.be>,
Thomas Meyer <thomas.mey@....de>,
Giorgio Lando <patroclo7@...il.com>,
Dave Jones <davej@...hat.com>,
Thomas Gleixner <tglx@...utronix.de>
Subject: Re: 2.6.21 known regressions (v2) (for -stable team)
Michal Piotrowski schrieb:
> Subject : Bad interaction between dynticks and amarok?
> References : http://lkml.org/lkml/2007/4/26/307
> Submitter : Thomas Meyer <thomas.mey@....de>
> Status : Unknow
>
>
Please remove this from the regression list. This seems to be an
userspace only problem and is not related to any kernel driver:
amarok and/or audacious seems to repeatedly read/write to the X socket:
tail of the strace of audacious:
gettimeofday({1177782978, 24491}, NULL) = 0
clock_gettime(CLOCK_MONOTONIC, {224, 581502867}) = 0
clock_gettime(CLOCK_MONOTONIC, {224, 581614815}) = 0
select(4, [3], [3], NULL, NULL) = 1 (out [3])
writev(3,
[{"\221\3\n\0\3\0\200\2#\0\200\2\0\6@\0\240\4\20\0L\0\20\0"..., 40}], 1)
= 40
read(3, 0x80da6c8, 4096) = -1 EAGAIN (Resource
temporarily unavailable)
gettimeofday({1177782978, 25286}, NULL) = 0
poll([{fd=4, events=POLLIN}, {fd=3, events=POLLIN}], 2, 9) = 0
gettimeofday({1177782978, 33242}, NULL) = 0
read(3, 0x80da6c8, 4096) = -1 EAGAIN (Resource
temporarily unavailable)
gettimeofday({1177782978, 33475}, NULL) = 0
poll([{fd=4, events=POLLIN}, {fd=3, events=POLLIN}], 2, 1) = 0
gettimeofday({1177782978, 36548}, NULL) = 0
clock_gettime(CLOCK_MONOTONIC, {224, 593554129}) = 0
read(3, 0x80da6c8, 4096) = -1 EAGAIN (Resource
temporarily unavailable)
gettimeofday({1177782978, 36921}, NULL) = 0
poll([{fd=4, events=POLLIN}, {fd=3, events=POLLIN}], 2, 9) = 0
gettimeofday({1177782978, 46572}, NULL) = 0
clock_gettime(CLOCK_MONOTONIC, {224, 603578038}) = 0
clock_gettime(CLOCK_MONOTONIC, {224, 603689148}) = 0
select(4, [3], [3], NULL, NULL) = 1 (out [3])
writev(3, [{"\221\3\n\0\3\0\200\2#\0\200\2\0\6@\0\0\4 \0L\0\20\0\23"...,
40}], 1) = 40
read(3, 0x80da6c8, 4096) = -1 EAGAIN (Resource
temporarily unavailable)
gettimeofday({1177782978, 47341}, NULL) = 0
poll([{fd=4, events=POLLIN}, {fd=3, events=POLLIN}], 2, 9) = 0
gettimeofday({1177782978, 56566}, NULL) = 0
read(3, 0x80da6c8, 4096) = -1 EAGAIN (Resource
temporarily unavailable)
gettimeofday({1177782978, 56799}, NULL) = 0
poll([{fd=4, events=POLLIN}, {fd=3, events=POLLIN}], 2, 0) = 0
clock_gettime(CLOCK_MONOTONIC, {224, 613921380}) = 0
read(3, 0x80da6c8, 4096) = -1 EAGAIN (Resource
temporarily unavailable)
gettimeofday({1177782978, 57282}, NULL) = 0
poll([{fd=4, events=POLLIN}, {fd=3, events=POLLIN}], 2, 9) = 0
gettimeofday({1177782978, 67696}, NULL) = 0
clock_gettime(CLOCK_MONOTONIC, {224, 624704202}) = 0
clock_gettime(CLOCK_MONOTONIC, {224, 624817966}) = 0
select(4, [3], [3], NULL, NULL) = 1 (out [3])
writev(3, [{"\221\3\n\0\3\0\200\2#\0\200\2\0\6@\0P\4
\0L\0\20\0\23\0"..., 40}], 1) = 40
read(3, 0x80da6c8, 4096) = -1 EAGAIN (Resource
temporarily unavailable)
gettimeofday({1177782978, 68476}, NULL) = 0
poll([{fd=4, events=POLLIN}, {fd=3, events=POLLIN}], 2, 9) = 0
gettimeofday({1177782978, 76564}, NULL) = 0
read(3, 0x80da6c8, 4096) = -1 EAGAIN (Resource
temporarily unavailable)
gettimeofday({1177782978, 76796}, NULL) = 0
poll([{fd=4, events=POLLIN}, {fd=3, events=POLLIN}], 2, 0) = 0
clock_gettime(CLOCK_MONOTONIC, {224, 633919963}) = 0
read(3, 0x80da6c8, 4096) = -1 EAGAIN (Resource
temporarily unavailable)
gettimeofday({1177782978, 77280}, NULL) = 0
poll([{fd=4, events=POLLIN}, {fd=3, events=POLLIN}], 2, 9) = 0
gettimeofday({1177782978, 86898}, NULL) = 0
clock_gettime(CLOCK_MONOTONIC, {224, 643911329}) = 0
clock_gettime(CLOCK_MONOTONIC, {224, 644025581}) = 0
select(4, [3], [3], NULL, NULL) = 1 (out [3])
writev(3, [{"\221\3\n\0\3\0\200\2#\0\200\2\0\6@\0\240\4
\0L\0\20\0\23"..., 40}], 1) = 40
read(3, 0x80da6c8, 4096) = -1 EAGAIN (Resource
temporarily unavailable)
gettimeofday({1177782978, 87702}, NULL) = 0
poll([{fd=4, events=POLLIN}, {fd=3, events=POLLIN, revents=POLLIN}], 2,
9) = 1
read(3, "\n\3P\v\4\0\200\2\0\0\0\0\210v\274\277r\300\10\10x\35!"...,
4096) = 96
read(3, 0x80da6c8, 4096) = -1 EAGAIN (Resource
temporarily unavailable)
read(3, 0x80da6c8, 4096) = -1 EAGAIN (Resource
temporarily unavailable)
read(3, 0x80da6c8, 4096) = -1 EAGAIN (Resource
temporarily unavailable)
gettimeofday({1177782978, 90108}, NULL) = 0
gettimeofday({1177782978, 90163}, NULL) = 0
But i didn't have a look at what is going on here. But running amarok
and/or audacious (without playing a song!) adds 50-70 more interrupts to
the timer interrupt.
with kind regards
thomas
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