I have been running 2.6.38-11 for 6 weeks now, and there have been no more
occurrences of the problem.
(kernel is 2.6.38-11-generic #50-Ubuntu SMP Mon Sep 12 21:17:25 UTC 2011
x86_64 x86_64 x86_64 GNU/Linux)
The cx88 driver patches have fixed the problem for me.
** Changed in: linux (Ubuntu)
I have no way to reproduce this. It always just occured randomly every
3-6 days. But I don't think I has happened for the last two weeks or so,
even with 2.6.38-10-server (now upgrading to 2.6.38-11).
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julianw,
I have just installed 2.6.38-11.48 and the problems seem to be gone.
I will post another comment after some more extensive use of the new kernel.
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steveb,
is this still an issue after the last kernel update (2.6.38-11.48)?
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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T
The kernel in -proposed (2.6.38-11.47) has several patches for the cx88
driver; see https://wiki.ubuntu.com/Testing/EnableProposed in case you
want to give it a try.
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Looking into the changes from 2.6.25 to 2.6.38 there were many locking
changes, which could be the problem:
--- linux-source-2.6.35/drivers/media/video/cx88/cx88-blackbird.c
2010-08-02 08:11:14.0 +1000
+++ linux-source-2.6.38/drivers/media/video/cx88/cx88-blackbird.c
2011-03-
After reviewing the dmesg files I posted, I can see a common call path to the
problem:
v4l2_open -> video_open -> mutex_lock
The path is always related to the cx88xx drivers, for a DVB card.
Is it the DVB card drivers?
To test this I added a blacklist-tmp.conf file into /etc/modprobe.d containi
This same problem just happened to me while playing back a video file
with vlc. After a few seconds into playback sound suddenly stopped and
video got really choppy until it stopped completely and a lot of disk
activity started happening for no apparent reason. After 5 minutes of
unsuccessful attem
Ah, and some files (like /var/log/messages) show 0 bytes after the fact.
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Title:
Multiple Tasks - "blocked for more than 120 seconds" INFO message
I get only this in dmesg:
[63120.440058] INFO: task sync:24237 blocked for more than 120 seconds.
[63120.440061] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[63120.440064] syncD 0 24237 4972 0x
[63120.440069] 880100579c
The same problem here. Which system files may be relevant?
It mostly happens when vim tries to overwrite a file it edited.
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Title:
Multiple Tasks
** Changed in: linux (Ubuntu)
Status: New => Confirmed
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Title:
Multiple Tasks - "blocked for more than 120 seconds" INFO message
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The system is functional using the 2.6.35 kernel, so I can gather more data as
necessary by starting up the 2.6.38 kernels.
Thanks.
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Title:
Multi
** Attachment added: "dmesg for 2.6.38-02063804 kernel"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/774773/+attachment/2102575/+files/dmesg.errors-2.6.38-02063804.log
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** Attachment added: "dmesg for 2.6.38-8-server kernel"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/774773/+attachment/2102572/+files/dmesg.errors-2.6.38-8-server.log
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** Attachment added: "dmesg for s.6.38-8-generic kernel"
https://bugs.launchpad.net/bugs/774773/+attachment/2102550/+files/dmesg.errors-2.6.38-8-generic.log
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