From: Romit Dasgupta <romit@myrealbox.com>
To: akpm@osdl.org
Cc: linux-kernel@vger.kernel.org
Subject: Re : Re: Debug: sleeping function called from invalid context
Date: Sun, 27 Jul 2003 16:42:25 +0800 [thread overview]
Message-ID: <3F239071.7000905@myrealbox.com> (raw)
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/>> /
/>> Just found some debug messages like the subject above, from /
/>> the latest kernel compiled with debug options. Attached are the dmesg /
/>> output and the .config file. Not sure if anyone has seen this. /
>Probably some initcall has more spin_lock()s than spin_unlock()s and the
>init process's preempt count ended up permanently out of whack.
>Please boot with "initcall_debug=1" on the boot command line and if
you see
>a line of the form:
>error in initcall at 0xXXXXXXXX: returned with preemption imbalance
>then please look up 0xXXXXXXXX in System.map and let us know.
Hello Andrew,
Thanks for your help. The problem does not show
up on every boot. I really dont know, what causes it to trigger.
Nevertheless, I booted with the options you suggested. I kept executing
dmesg often, and this time i was lucky to get those errors back again!
So I am attaching the output of dmesg. Unfortunately, I can't see any
message like ".....: returned with preemption imbalance".
Regards,
-Romit
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reply other threads:[~2003-07-27 8:27 UTC|newest]
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