Re: 3.0-rc1: powerpc hangs at Kernel virtual memory layout
From: Christian Kujau <hidden>
Date: 2011-06-02 06:17:03
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On Thu, 2 Jun 2011 at 08:07, Rafał Miłecki wrote:
1) You didn't see (like Andres): Machine check in kernel mode. Caused by (from SRR1=149030): Transfer error ack signal Oops: Machine check, sig: 7 [#1] But, OK, maybe machine check requires something additional in kernel, I don't know... 2) You didn't see SSB messages This is confusing. You should see SSB messages that appear before my invalid read happens. Did you somehow disable most of the important logs, or sth? Having ssb messages and the end of hung boot would directly point you to ssb module.
BenH advised to boot with udbg-immortal and out came: http://nerdbynature.de/bits/3.0-rc1/linux-3.0_powerpc_2.jpg http://nerdbynature.de/bits/3.0-rc1/linux-3.0_powerpc_2.mp4 (watch it at very slow speed, as it's only 3sec long) I've enabled[0] FB_NVIDIA and during normal booting the screen flickers after the "... : fixmap" message and the screen clears and is filled again from the top - maybe the messages would've been there if booted w/o the framebuffer enabled. Right now I'm happy that Ben's fix helped to get past this message, but the system remains unsuable[1] with the latest -git, but more debugging has to wait until tomorrow... Thanks, Christian. [0] http://nerdbynature.de/bits/3.0-rc1/config-2.6.39.txt [1] https://lkml.org/lkml/2011/6/2/6 -- BOFH excuse #230: Lusers learning curve appears to be fractal