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SubjectRe: Slab corruption in 2.6.16-rc5-mm2
Nick Piggin <nickpiggin@yahoo.com.au> wrote:
>
> Chuck Ebbert wrote:
> > In-Reply-To: <Pine.LNX.4.64.0603061917330.3573@g5.osdl.org>
> >
> > On Mon, 6 Mar 2006 19:20:13 -0800, Linus Torvalds wrote:
> >
> >
> >>>When someone converted the *buffer* allocation to kzalloc they
> >>>also removed the the memset for the *packet_cmmand* struct.
> >>>
> >>>The
> >>>
> >>>memset(&cgc, 0, sizeof(struct packet_command));
> >>>
> >>>should be added back I think.
> >>
> >>Good eyes. I bet that's it.
> >
> >
> > Heh. This exact fix was posted to linux-kernel by Lee Schermerhorn
> > three weeks ago:
> >
> > Date: Wed, 15 Feb 2006 14:07:37 -0500
> > From: Lee Schermerhorn <lee.schermerhorn@hp.com>
> > Subject: [PATCH] 2.6.16-rc3-mm1 - restore zeroing of packet_command
> > struct in sr_ioctl.c
> > To: linux-kernel <linux-kernel@vger.kernel.org>
> > Cc: Andrew Morton <akpm@osdl.org>
> > Message-ID: <1140030457.6619.3.camel@localhost.localdomain>
> >
> >
>
> It isn't Andrew's job to make sure a patch gets to the right place
> until it is safely in -mm, and even then he's not always going to
> know the severity and importance unless he's told.

Is too!

> If it was a patch to "restore" a regression in behaviour, CCs should
> at least have gone to the author of the patch that broke it, and the
> subsystem maintainers / list / etc as well.

I actually merged Lee's patch into -mm, copied James on it and then I
dropped it when I saw that it spat rejects against an updated version of
James's tree, assuming that it had been merged.

Often I'll check that a patch reverts successfully from the upstream tree
before dropping it, but for an obvious one like that I guess I didn't
bother, and assumed that James had taken it. Only he hadn't - instead he'd
gone and merged something else, hence the rejects. Oh well.
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