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Message-ID: <3C912977.2030604@mandrakesoft.com>
Date: Thu, 14 Mar 2002 17:51:35 -0500
From: Jeff Garzik <jgarzik@mandrakesoft.com>
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To: Juan Quintela <quintela@mandrakesoft.com>
CC: Richard Gooch <rgooch@ras.ucalgary.ca>, Andrew Morton <akpm@zip.com.au>,
        kernel <kernel@linux-mandrake.com>, linux-kernel@vger.kernel.org,
        dhinds@sonic.net
Subject: Re: pcmcia oops (with ksymoops output this time)
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With oops tracing in IRC, we narrowed the problem in 2.4.x down to, 
serial_cs and ide_cs drivers, and other 16-bit pcmcia drivers possibly, 
call their release functions from a timer when ejected.  The 
per-subsystem release functions then proceed to do all manner of 
in-process-context type work, including calling devfs_unregister, whose 
call path can eventually cause a schedule()

Suggested fix, call schedule_task() in each timer-based release 
function, to queue a task in process context to do the actual work. 
 This is how 32-bit cardbus gets such things done...

    Jeff





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