From: Trond Myklebust <trond.myklebust@fys.uio.no>
To: Andrew Morton <akpm@osdl.org>
Cc: grievre@gmail.com, linux-kernel@vger.kernel.org
Subject: Re: NFS bug?
Date: Fri, 21 Apr 2006 15:34:47 -0400 [thread overview]
Message-ID: <1145648087.8165.23.camel@lade.trondhjem.org> (raw)
In-Reply-To: <20060421113156.35c626dc.akpm@osdl.org>
On Fri, 2006-04-21 at 11:31 -0700, Andrew Morton wrote:
> Trond Myklebust <trond.myklebust@fys.uio.no> wrote:
> >
> > > I'd be guessing that filldir64() was passed a negative namlen.
> >
> > Why would that trigger a bug in __copy_from_user_ll()? I could see it
> > triggering errors in copy_to_user(), but not copy_from_*...
>
> Ah. No, I cannot see why getdents wold run copy_from_user().
>
> I wonder why that stack trace didn't come out. Perhaps running `dmesg -n
> 7' prior to triggerng the crash will help. (It shouldn't, but we might
> have broken it).
>
Also, please check that the kernel was compiled with
CONFIG_FRAME_POINTER and CONFIG_KALLSYMS.
Cheers,
Trond
next prev parent reply other threads:[~2006-04-21 19:34 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-20 16:37 Robert Merrill
2006-04-20 16:41 ` Trond Myklebust
[not found] ` <b3be17f30604200953i652e14a2n908f1a066ffe4e7f@mail.gmail.com>
[not found] ` <1145555789.8136.13.camel@lade.trondhjem.org>
2006-04-20 18:02 ` Robert Merrill
2006-04-20 18:10 ` Trond Myklebust
2006-04-20 18:14 ` Robert Merrill
2006-04-20 19:20 ` Trond Myklebust
2006-04-20 20:29 ` Robert Merrill
2006-04-21 7:55 ` Andrew Morton
2006-04-21 14:07 ` Trond Myklebust
2006-04-21 16:43 ` Joshua Hudson
2006-04-21 18:31 ` Andrew Morton
2006-04-21 19:34 ` Trond Myklebust [this message]
2006-04-23 7:29 ` Robert Merrill
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