Re: Fwd: sparc32 SMP under 2.6?

I read that Debian is dropping Sparc32 support for kernel 2.6.

El Sáb 03 Sep 2005 13:41, Christian Joensson escribió:
> Do you guys have any additional comments?
> 
> ---------- Forwarded message ----------
> From: Bob Breuer <[email protected]>
> Date: Sep 3, 2005 6:21 PM
> Subject: Re: sparc32 SMP under 2.6?
> To: Christian Joensson <[email protected]>
> Cc: sparclinux <[email protected]>
> 
> 
> Christian Joensson wrote:
> > I'd just like to ask what the status is of sparc32 and SMP under the 2.6 
kernel?
> >
> 
> Not much progress here.  I've only ported my SMP patch up to 2.6.12.
> Supersparc seems to be as stable under SMP as UP, but hypersparcs keep
> giving me problems.
> 
> I've tried an experiment of setting the cache mode to write-through on
> hypersparc and now it crashes early on.  Maybe someone might have some
> insight into what's happening:
> 
> 
> Starting CPU 2 at f01e0960
> Unable to handle kernel NULL pointer dereference
> tsk->{mm,active_mm}->context = ffffffff
> tsk->{mm,active_mm}->pgd = fc000000
>                \|/ ____ \|/
>                "@'/ ,. \`@"
>                /_| \__/ |_\
>                   \__U_/
> swapper(0): Oops [#1]
> PSR: 1e900fc5 PC: f0182b48 NPC: f0182b4c Y: 00000000    Not tainted
> PC: <schedule+0x240/0x398>
> %G: f1302000 f05f61b4  0000008c 0000000c  0001312c 00000001  fbf14000
> 000003a
> %O: f05f58a0 f018ba38  00000000 00002000  00000000 ffff8b0f  fbf15ec8
> f0182a00
> RPC: <schedule+0xf8/0x398>
> %L: 1e0000c6 00000002  0000006c f071c7c0  f05f5d54 f05f58a0  0098963a
> 4c285180
> %I: 00000004 f01a91d0  0000005b 000b7000  0c845880 f071c8e8  fbf15f38
> f00188f4
> Caller[f00188f4]: cpu_idle+0x20/0x38
> Caller[f001f05c]: smp_do_cpu_idle+0x0/0x10
> Caller[00000000]: start+0xfffc000/0x10
> Instruction DUMP: 82050001  c4006018  a400bfe0 <c204a018> 80a06063
> 2480001f  c024a048  c204a048  80a06000
> Kernel panic - not syncing: Attempted to kill the idle task!
>   <0>Press Stop-A (L1-A) to return to the boot prom
> 
> 
> -- 
> Cheers,
> 
> /ChJ
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Martín Marqués          |   Programador, DBA
Centro de Telemática	|     Administrador
               Universidad Nacional
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