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Date: Wed, 30 May 2007 09:00:34 +0300 (EEST) From: Tero Roponen <teanropo@....fi> To: Pekka Enberg <penberg@...helsinki.fi> cc: linux-kernel@...r.kernel.org, akpm@...ux-foundation.org, Alan Cox <alan@...rguk.ukuu.org.uk>, Andy Whitcroft <apw@...dowen.org> Subject: Re: tty-related oops in latest kernel(s)? On Wed, 30 May 2007, Pekka Enberg wrote: > On 5/30/07, Tero Roponen <teanropo@....fi> wrote: > > Hmmm, I just found something interesting. In 2.6.21.3 the /sbin/init > > gets corrupted when I watch the video! > > > > $ cp /sbin/init init.before > > $ mplayer kiwi.flv > > $ cp /sbin/init init.after > > > > The sha1sums are here: > > > > 52c8d643057619cbe137b8e69d4709ce3bdd832d init.after > > 8efc7864a5b535a9e336fa82e9d7f112f3d956c1 init.before > > > > It seems that something corrupts memory somewhere... > > To debug this a bit further: > > $ od -a -t x1 -v init.after > init.after.dump > $ od -a -t x1 -v init.before > init.before.dump > $ diff -u init.before.dump init.after.dump | less > > -0011340 nul nul nul e9 f0 fe ff ff ff % < soh enq bs h 80 > - 00 00 00 e9 f0 fe ff ff ff 25 3c 01 05 08 68 80 > +0010000 y ack nul nul y ack nul nul y ack nul nul y ack nul nul > + 79 06 00 00 79 06 00 00 79 06 00 00 79 06 00 00 > +0010020 y ack nul nul y ack nul nul y ack nul nul y ack nul nul > + 79 06 00 00 79 06 00 00 79 06 00 00 79 06 00 00 > +0011340 y ack nul nul y ack nul nul ff % < soh enq bs h 80 > + 79 06 00 00 79 06 00 00 ff 25 3c 01 05 08 68 80 > > The file at offset 0010000 - 0011348 is overwritten with the byte > pattern 79 06 00 00. > > Do you see anything in the logs or is this a silent corruption? Did > you see this corruption with 2.6.19 or 2.6.22-rc3? 2.6.19.2 has been very stable for me. 2.6.21.3 has this silent corruption (nothing in logs) 2.6.22-rc3 oopses when watching videos. -- Tero Roponen - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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