linux-kernel - Re: [Bug #13522] BUG: scheduling while atomic

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Date:	Mon, 29 Jun 2009 15:41:19 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Kernel Testers List <kernel-testers@...r.kernel.org>,
	"Alan Cox" <alan@...ux.intel.com>,
	"Sergey Senozhatsky" <sergey.senozhatsky@...l.by>
Subject: Re: [Bug #13522] BUG: scheduling while atomic

On Mon, 29 Jun 2009 01:51:09 +0200 (CEST)
"Rafael J. Wysocki" <rjw@...k.pl> wrote:

> This message has been generated automatically as a part of a report
> of recent regressions.
> 
> The following bug entry is on the current list of known regressions
> from 2.6.30.  Please verify if it still should be listed and let me know
> (either way).

Yes although getting people seeing to test with might_sleep() checks in
the tty layer demonstrate the tty layer isn't calling into ppp with irqs
disabled when it shouldn't so I'm at a loss as to whether this is a
network bug, a scheduler bug or something else.

The schedule error in __tasklet_schedule() is itself rather peicular.
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