Re: unaligned accesses in SLAB etc.

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From: Meelis Roos <mroos@xxxxxxxx>
Date: Wed, 15 Oct 2014 11:04:49 +0300 (EEST)

>> > My only other current sparc64 problems that I am seeing - V210/V440 die 
>> > during bootup if compiled with gcc 4.9 and V480 dies with FATAL 
>> > exceptions during bootups since previous kernel release. Maybe also 
>> > exit_mmap warning - I do not know if they have been fixed, I see them 
>> > rarely.
>> 
>> The gcc-4.9 case is interesting, are you saying that a gcc-4.9 compiled
>> kernel works fine on other systems?
> 
> Yes, all USII based systems work fine with Debian gcc-4.9, as does 
> T2000. Of USIII* systems, V210 and V440 exhibit the boot hang with 
> gcc-4.9 and V480 crashes wit FATAL exception during boot that is 
> probably earlier than the gcc boot hang so I do not know about V480 and 
> gcc-4.9. V240 not tested because of fan failures, V245 is in the queue 
> for setup but not tested so far.

Ok, on the V210/V440 can you boot with "-p" on the kernel boot command
line and post the log?  Let's start by seeing how far it gets, maybe
we can figure out roughly where it dies.

A boot hang should be relatively easy to diagnose and pinpoint.

Thanks.

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