From: Dave Jones <davej@redhat.com>
To: Linux Kernel <linux-kernel@vger.kernel.org>, laredo@gnu.org
Cc: xslaby@fi.muni.cz
Subject: Re: stradis oopses on modprobe.
Date: Tue, 24 Jan 2006 01:17:21 -0500 [thread overview]
Message-ID: <20060124061721.GA6861@redhat.com> (raw)
In-Reply-To: <20060124060103.GA3532@redhat.com>
On Tue, Jan 24, 2006 at 01:01:03AM -0500, Dave Jones wrote:
> The backtrace is a bit of a mess, but what seems to happen is that we're oopsing
> on the saawrite(0xffff0000, SAA7146_MC1) in init_saa7146
> saawrite does a writel((dat), saa->saa7146_mem+(adr)), and as we've already
> dereferenced 'saa' a few lines above, the oops is due to saa7146_mem being NULL
> however that should be set up by configure_saa7146, which gets called in stradis_probe()
> prior to calling init_saa7146.
>
> *puzzled*.
This came from Jiri's PCI probing cleanups in 9ae82293ff3a3057d939b4f56d57eeea2f91bbec
There's a memset in init_saa7146 now, which wipes out the whole struct,
so we lose track of saa7146_mem
Jiri ?
Dave
next prev parent reply other threads:[~2006-01-24 6:17 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-24 6:01 stradis oopses on modprobe Dave Jones
2006-01-24 6:17 ` Dave Jones [this message]
2006-01-24 11:25 ` [PATCH] media video stradis memory fix Jiri Slaby
2006-01-26 6:53 ` Mauro Carvalho Chehab
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