[parisc-linux] 2.4.20-pa27 64bits smp problem!

[Joel Soete]

>
>>-- Original Message --
>>From: Matthew Wilcox <willy@debian.org>
>>To: Joel Soete <jsoe0708@tiscali.be>
>>Cc: parisc-linux@parisc-linux.org
>>Subject: Re: [parisc-linux] 2.4.20-pa27 64bits smp problem!
>>Date: Mon, 24 Feb 2003 17:50:13 +0000
>>
>>
>>On Mon, Feb 24, 2003 at 06:42:39PM +0100, Joel Soete wrote:
>>> sched.c:93: initializer element is not constant
>>> sched.c:93: (near initialization for `tasklist_lock')
>>> sched.c:93: initializer element is not constant
>>[...]
>>> which is precompile as:
>>> rwlock_t tasklist_lock __attribute__((__aligned__(64))) = (rwlock_t)
{
>>(spinlock_t)
>>> {1}, 0 };
>>> 
>>> What's wrong?
>>
>>looks like gcc broke this again.  for the moment, you can try taking
>>out the casts.
As struct spinlock_t is defined like:

typedef struct {
#ifdef CONFIG_PA20
        volatile unsigned int lock;
#else
        volatile unsigned int __attribute__((aligned(16))) lock;
#endif
#ifdef CONFIG_DEBUG_SPINLOCK
        volatile unsigned long owner_pc;
        volatile unsigned long owner_cpu;
#endif
} spinlock_t;

I take care to unset CONFIG_DEBUG_SPINLOCK (make menu) and so change in sched.c

#define RW_LOCK_UNLOCKED (rwlock_t) { { 1 } , 0 }

The good news was that I reach to compile the kernel :)
The bad one was that this kernel failled to boot :(

(As this N stand in a computer room, it is not easy to access the console
to grab more info :( , sorry)

Well, doesn't matter, I am already enough happy to be able to boot and work
with a N (even in up).

Thanks again for advises,
    Joel

>>
>Yes :(( 
>
>This errors also occurs with 32bits gcc-3.2 as well as for gcc-3.3 (gcc-snapshot)
>(but was not with gcc-3.0)
>
>Thanks,
>    Joel
>
>PS: daya think a bg is required?
>
>>-- 
>>"It's not Hollywood.  War is real, war is primarily not about defeat or
>>victory, it is about death.  I've seen thousands and thousands of dead
bodies.
>>Do you think I want to have an academic debate on this subject?" -- Robert
>>Fisk
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>
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