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SubjectRe: kernel BUG with 2.6.23-rc3-mm1: skb_over_panic
On Fri, Aug 24, 2007 at 05:44:50PM -0700, Andrew Morton wrote:
> On Fri, 24 Aug 2007 20:16:38 -0400
> Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> wrote:
>
> > * Andrew Morton (akpm@linux-foundation.org) wrote:
> > > On Fri, 24 Aug 2007 18:47:07 -0400
> > > Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> wrote:
> > >
> > > > Hi Andrew,
> > > >
> > > > I get the following BUG when booting 2.6.23-rc3-mm1 on i386. I wonder if
> > > > you would have some ideas about what is causing this problem. I'll start
> > > > bissecting it soon. I seems to be caused by an buggy skb_put call in
> > > > kobject_uevent_env.
> > > >
> > > > Thanks,
> > > >
> > > > Mathieu
> > > >
> > > >
> > >
> > > hm, don't know, sorry. Kay fixed a few things in there, but iirc pretty
> > > much all of the fixes were in rc3-mm1 anyway.
> > >
> > > I doubt if bisection will tell us a lot: it'll probably point at
> > > gregkh-driver-driver-core-change-add_uevent_var-to-use-a-struct.patch.
> > >
> > > What we _would_ like to know is which sysfs file is being written to. We
> > > used to have a debug patch to exactly address this problem but it got
> > > transferred into Greg's tree from whence it mysteriously disappeared.
> > >
> >
> > Ok, here it is:
> >
> > filename :
> >
> > /devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/rev
>
> Bah. I've never found a sane way of going from a sysfs pathname back to the
> code which implements that pathname :(
>
> <greps the tree for '"rev"'>
>
> <comes up with zilch>

It's a scsi file, as the above is a scsi device. It's created in the
drivers/scsi/scsi_sysfs.c file.

Kay, did you miss this set of attributes somehow?

thanks,

greg k-h
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