From: Manfred Spraul <manfred@colorfullife.com>
To: pinotj@club-internet.fr
Cc: torvalds@osdl.org, akpm@osdl.org, linux-kernel@vger.kernel.org
Subject: Re: [Oops] i386 mm/slab.c (cache_flusharray)
Date: Sat, 22 Nov 2003 11:55:27 +0100 [thread overview]
Message-ID: <3FBF409F.7070405@colorfullife.com> (raw)
In-Reply-To: <mnet1.1069487254.8717.pinotj@club-internet.fr>
pinotj@club-internet.fr wrote:
>c6fd7870: redzone 1: 0x170fc2a5, redzone 2: 0x160fc2a5.
>
Single bit error: redzone 2 must be 0x170fc2a5.
>---
>System looks OK, I tried a second compilation just after and this time I got an oops:
>---
>slab: double free detected in cache 'buffer_head', objp cc3f9798, objnr 26, slabp cc3f9000, s_mem cc3f9180 bufctl f7ffffff.
>
>
Good.
+#define BUFCTL_END 0xfeffFFFF
+#define BUFCTL_FREE 0xf7ffFFFE
+#define SLAB_LIMIT 0xf0ffFFFD
f7ffffff is not a valid value, slab never writes that into a bufctl.
Someone did a ++ or "|= 1", or a hw bug.
I think the Athlon cpus have ECC for the L2 cache - could you check in
the bios that ECC checking is enabled?
--
Manfred
next prev parent reply other threads:[~2003-11-22 10:55 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-22 7:47 Re: Re: [Oops] i386 mm/slab.c (cache_flusharray) pinotj
2003-11-22 10:55 ` Manfred Spraul [this message]
-- strict thread matches above, loose matches on Subject: below --
2003-12-09 0:57 pinotj
2003-12-09 2:03 ` Nathan Scott
2003-12-09 7:21 ` Christoph Hellwig
2003-12-09 23:58 ` Nathan Scott
2003-12-12 19:00 ` Christoph Hellwig
2003-12-12 20:07 ` Manfred Spraul
2003-12-04 18:27 pinotj
2003-12-04 18:49 ` Linus Torvalds
2003-12-04 19:09 ` Linus Torvalds
2003-12-04 21:21 ` Nathan Scott
2003-12-05 7:14 ` Christoph Hellwig
2003-12-05 9:34 ` Nathan Scott
2003-12-05 14:22 ` Christoph Hellwig
2003-12-05 3:00 ` Nathan Scott
2003-12-05 6:40 ` Linus Torvalds
2003-12-04 19:19 ` Manfred Spraul
2003-12-04 21:26 ` Nathan Scott
2003-12-03 23:06 pinotj
2003-12-03 23:26 ` Linus Torvalds
2003-11-29 17:41 pinotj
2003-12-02 0:36 ` Linus Torvalds
2003-12-02 1:37 ` Nathan Scott
2003-12-02 6:44 ` Nathan Scott
2003-12-02 18:05 ` Mike Fedyk
2003-12-02 20:05 ` Nathan Scott
2003-11-27 18:42 pinotj
2003-11-27 18:55 ` Manfred Spraul
2003-12-02 1:03 ` Mike Fedyk
2003-11-25 17:30 pinotj
2003-11-25 22:51 ` Linus Torvalds
2003-11-27 18:07 ` Manfred Spraul
2003-11-21 18:12 pinotj
2003-11-21 18:58 ` Manfred Spraul
2003-11-20 1:50 pinotj
2003-11-20 2:09 ` Andrew Morton
2003-11-19 18:19 pinotj
2003-11-20 1:07 ` Andrew Morton
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