linux-kernel - Re: Lock-up on PPC64

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Message-ID: <20081222233223.GA6688@joi>
Date:	Tue, 23 Dec 2008 00:32:24 +0100
From:	Marcin Slusarz <marcin.slusarz@...il.com>
To:	malc <av1474@...tv.ru>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Lock-up on PPC64

On Sun, Dec 21, 2008 at 09:18:07PM +0300, malc wrote:
> Plain/non-root userspace application which doesn't interface with
> any weird out-of/in-tree drivers manages to lock-up a PS3 machine
> running Linux.
>
> The application in question is Mono VM running mcs.exe (C# compiler)
> which tries to compile particular file, distribution is Yellow Dog Linux
> 6.0 with either stock (2.6.23.x) or custom compiled (2.6.27) 64bit kernel.
>
>
> Symptoms are as follows (interaction is done via ssh from another
> machine):
>
> $ make
> ... lots of stdout/err messages
> ... eventually an error message
>
> Eventually the ssh session terminates, PS3 is still pingable but
> impossible to connect to, attaching keyboard and trying magic SysRq
> doesn't work, typing keys into login: prompt works (as in - the terminal
> shows keys that were pressed, but after hittiing enter the carret is
> advanced and nothing happens, hitting random keys doesn't yield anything
> either)

Check your RAM first (memtest). If it won't find anything please post your
config and dmesg. You can enable some debugging options ("Kernel hacking"
in menuconfig), setup netconsole and see if it can catch anything.
(see Documentation/networking/netconsole.txt)

Marcin
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