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Re: 4.2.0-rc6+: Boot crash on IBM X346

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  Re: 4.2.0-rc6+: Boot crash on IBM X346 Meelis Roos <mroos@linux.ee> - 2015-08-17 11:50 +0200
    Re: 4.2.0-rc6+: Boot crash on IBM X346 Meelis Roos <mroos@linux.ee> - 2015-08-18 20:50 +0200

#1208504 — Re: 4.2.0-rc6+: Boot crash on IBM X346

> IBM Xseries 346, 2x Xeon 3.2 HT 64-bit (4 threads total, P4 era Xeon), 
> 5G RAM. All kernels so far worked fine, last working one was 
> 4.2.0-rc2-00077-gf760b87. First kernel tested after that was 
> v4.2-rc6-20-g7a834ba and that one crashes on boot.

Same crash happens in 4.2.0-rc7.

> Screenshot at http://kodu.ut.ee/~mroos/x346-crash.jpg
> 
> Config and dmesg from working 4.2.0-rc2-00077-gf760b87 are below. I can 
> not bisect until next week.

Will try to bisect, slowly as I have no remote management on that 
server.

-- 
Meelis Roos (mroos@linux.ee)      http://www.cs.ut.ee/~mroos/
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#1209429

> > IBM Xseries 346, 2x Xeon 3.2 HT 64-bit (4 threads total, P4 era Xeon), 
> > 5G RAM. All kernels so far worked fine, last working one was 
> > 4.2.0-rc2-00077-gf760b87. First kernel tested after that was 
> > v4.2-rc6-20-g7a834ba and that one crashes on boot.
> 
> Same crash happens in 4.2.0-rc7.
[...]
> Will try to bisect, slowly as I have no remote management on that 
> server.

Good news - the problem was local, some file was corrupted after a power 
failure and it persisted over compilations (kallsyms finding no 
symbols). bisect pointed me to the start and even recompiled known good 
version was broken, so I tried make mrproper and it cured the problem.

-- 
Meelis Roos (mroos@linux.ee)
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