linux-kernel - Re: [2.6.24 REGRESSION] BUG: Soft lockup

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Date:	Tue, 5 Feb 2008 23:35:40 +0100
From:	"Oliver Pinter" <oliver.pntr@...il.com>
To:	"Pete Zaitcev" <zaitcev@...hat.com>
Cc:	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Linux Kernel" <linux-kernel@...r.kernel.org>, linux-mm@...ck.org,
	linux-fsdevel@...r.kernel.org, "James Morris" <jmorris@...ei.org>,
	linux-usb@...r.kernel.org
Subject: Re: [2.6.24 REGRESSION] BUG: Soft lockup - with VFS

/usr/data/source/git/linux-2.6/drivers/block/ub.c: In function 'ub_end_rq':
/usr/data/source/git/linux-2.6/drivers/block/ub.c:819: error: implicit
declaration of function 'end_that_request_first'
/usr/data/source/git/linux-2.6/drivers/block/ub.c:820: error: implicit
declaration of function 'end_that_request_last'
make[7]: *** [drivers/block/ub.o] Error 1
make[6]: *** [drivers/block] Error 2
make[5]: *** [drivers] Error 2
make[5]: *** Waiting for unfinished jobs....


On 2/5/08, Oliver Pinter <oliver.pntr@...il.com> wrote:
> i reverted this commit 7d699bafe258ebd8f9b4ec182c554200b369a504 , and
> now compile ...
>
> On 2/5/08, Pete Zaitcev <zaitcev@...hat.com> wrote:
> > On Tue, 5 Feb 2008 14:05:06 -0800, Andrew Morton
> <akpm@...ux-foundation.org>
> > wrote:
> >
> > > Looks like you deadlocked in ub_request_fn().  I assume that you were
> > using
> > > ub.c in 2.6.23 and that it worked OK?  If so, we broke it, possibly via
> > > changes to the core block layer.
> > >
> > > I think ub.c is basically abandoned in favour of usb-storage.  If so,
> > > perhaps we should remove or disble ub.c?
> >
> > Actually I think it may be an argument for keeping ub, if ub exposes
> > a bug in the __blk_end_request. I'll look at the head of the thread
> > and see if Mr. Pinter has hit anything related to Mr. Ueda's work.
> >
> > -- Pete
> >
>
>
> --
> Thanks,
> Oliver
>


-- 
Thanks,
Oliver
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