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Tasklist

FS#7221 - BUG: soft lockup detected on CPU#0 & 1 !

Attached to Project: Arch Linux
Opened by Xavier (in-ferno) - Sunday, 20 May 2007, 15:26 GMT
Last edited by Tobias Powalowski (tpowa) - Friday, 17 August 2007, 18:00 GMT
Task Type Bug Report
Category Kernel
Status Closed
Assigned To Tobias Powalowski (tpowa)
Architecture i686
Severity High
Priority Normal
Reported Version 2007.05 Duke
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

Hi there... For my first bug report, I hope I selected the good options for submission.

On my laptop (Acer Aspire 5683WLMi) I have got a very annoying crash under X which appears very oftenly.
About 10 minutes after I booted, all the applications freeze (Audacious, Firefox, etc...) and the ipw3945 signal falls down to 0. The crash appears every 10 minutes but seems to disappear as the computer remains powered on.

I think it's ipw3945 since the signal goes down to 0 when the bug appears, but not sure at all. Look at this dmesg...

Thanks in advance !

This task depends upon

Closed by  Tobias Powalowski (tpowa)
Friday, 17 August 2007, 18:00 GMT
Reason for closing:  Won't fix
Comment by Xavier (in-ferno) - Sunday, 20 May 2007, 18:01 GMT
I'm now pretty sure it comes from ipw3945: With the module unloaded, the laptop doesn't crash at all for a long time.
In fact, I tried to upgrade ipw3945 to 1.2.1 (home-made package) as I saw some lockup problems were fixed in this version. But it didn't change anything.

I use the 2.6.21-ARCH kernel. And the problem was already there with 0.8 Voodoo.

(Please help, I'm really getting mad with this ****ing ipw3945 and I really need wireless connection for now)
Comment by Xavier (in-ferno) - Monday, 21 May 2007, 18:05 GMT
Even without the module loaded, the system crashes like described above...
To explain the crash:
Audacious stops playing. Firefox stops loading pages. Wireless signal is at 0: For 1 or 2 minutes, then the computer continues running normally. And 2-3 minutes after, it crashes...and so on.

Is this an ACPI problem ?

If you want further information on my system, I'll give you...
Comment by Xavier (in-ferno) - Monday, 21 May 2007, 19:06 GMT
Quite funny now... I've got new error. Look at the error log in dmesg.

The word is rather "hangs" than "crashes". It hangs during 2 minutes exactly.

I know there is iwlwifi which is nearly ready for 2.6.22.. but do I have to run a completely crashed laptop before new kernel is out ?
Is it ipw3945 which makes trouble ?
Comment by Tobias Powalowski (tpowa) - Sunday, 27 May 2007, 08:12 GMT
difficult to say, probably a bad combination of acpi and kernel
Comment by Xavier (in-ferno) - Sunday, 27 May 2007, 12:16 GMT
It may be ACPI indeed...Or something like Timer Frequency which is too low... don't know really

I'll wait the 2.6.22-ARCH and try again...

Anyway, at the moment, I'm running a customized kernel (2.6.22-rc2) and it works perfectly ! I set the Timer Frequency @ 250
Comment by Juan Carlos Valero (eb3dgz) - Friday, 01 June 2007, 11:28 GMT
I have the same problem, but with ipw3945 banned persist. In my case appear with "append" document in Evolution to a email.

Comment by Tobias Powalowski (tpowa) - Sunday, 24 June 2007, 07:24 GMT
please try this kernel and stuff:
[kernel]
http://www.archlinux.org/~tpowa/rc-kernel/

thanks
Comment by Xavier (in-ferno) - Wednesday, 27 June 2007, 18:28 GMT
Same problem with your kernel Tobias :(
For a moment I was running customized 2.6.22-rc5, and there were no problems.
Then I gave another try to 2.6.21-ARCH (I thought the crash has been fixed in recent versions)
But crashes came again... Then I tried your kernel, and exactly same crashes...
Unfortunately I lost my customized .config and I gave up the customized kernel.. I hope you'll fix this one day !
Comment by Tobias Powalowski (tpowa) - Wednesday, 27 June 2007, 18:59 GMT
i cannot fix it, im not a kernel developer :(
Comment by Xavier (in-ferno) - Thursday, 28 June 2007, 08:38 GMT
I'm sure it's Archlinux related, not kernel:
I tried again a customized 2.6.22-rc6 and all seems to be OK.

When I say "you", I meant "arch developers" ! :p
Comment by Tobias Powalowski (tpowa) - Thursday, 28 June 2007, 18:55 GMT
well you have an other config, thats the point --> kernel related
dont you think ;)

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