From: Gerd Knorr <kraxel@bytesex.org>
To: Andrew Morton <akpm@osdl.org>
Cc: caszonyi@rdslink.ro, linux-kernel@vger.kernel.org
Subject: Re: Fw: Slab coruption and oops with 2.6.1-mm4
Date: Mon, 19 Jan 2004 17:05:12 +0100 [thread overview]
Message-ID: <20040119160512.GB8321@bytesex.org> (raw)
In-Reply-To: <20040119121546.GD5498@bytesex.org>
> > CONFIG_PREEMPT=y
>
> Bug reproducable with this one turned off?
Hmm, running -mm4 with CONFIG_PREEMPT now, box loaded with bttv capture
+ parallel kernel builds, no problems so far ...
> > Slab corruption: start=c57c2000, len=4096
^^^^^^^^
> > 000: 6e 72 6d 71 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> > bttv0: skipped frame. no signal? high irq latency? [main=b030000,o_vbi=b030018,o_field=5378000,rc=537801c]
Who is this? Is this allocated by bttv? Or someone else corrupts
memory here?
btcx-risc and video-buf have a "debug=1" insmod option, bttv has
"bttv_debug=1". Those make bttv verbose (*plenty* of log, so better
don't try all three at the same time ...) and also log addresses of
(some) allocated memory blocks.
btcx-risc calls pci_alloc_consistent() and thus does PAGE_SIZE
allocations, that one likely is a good candidate to start with.
Gerd
next prev parent reply other threads:[~2004-01-19 16:25 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20040118220051.3f3d8420.akpm@osdl.org>
2004-01-19 12:15 ` Fw: Slab coruption and oops with 2.6.1-mm4 Gerd Knorr
2004-01-19 16:05 ` Gerd Knorr [this message]
2004-01-20 0:27 ` caszonyi
2004-01-20 1:22 ` Mike Fedyk
2004-01-20 11:51 ` Fw: " Gerd Knorr
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