Re: 2.4.0-test8: Ooops in soundcore

From: Peter Steiner (p.steiner@t-online.de)
Date: Sat Sep 09 2000 - 13:58:15 EST


Harald Dunkel <harri@synopsys.COM> wrote:

>>>EIP; c885844d <[soundcore]soundcore_open+49/184> <=====
>Trace; c0128394 <chrdev_open+40/54>
>Trace; c01276a9 <dentry_open+bd/150>
>Trace; c01275e3 <filp_open+43/4c>
>Trace; c01278d9 <sys_open+35/b4>
>Trace; c0108d23 <system_call+33/40>

drivers/sound/sound_core.c:soundcore_open:

        spin_lock(&sound_loader_lock);
        if (s)
0x51d <soundcore_open+77>: testl %ebx,%ebx
0x51f <soundcore_open+79>: je 0x554 <soundcore_open+132>

                new_fops = fops_get(s->unit_fops);
0x521 <soundcore_open+81>: movl 0x4(%ebx),%eax

#define fops_get(fops) \
        (((fops) && (fops)->owner) \
                ? ( try_inc_mod_count((fops)->owner) ? (fops) : NULL ) \
                : (fops))
                                       ^^^^^^^^^^^^ Bang!
0x524 <soundcore_open+84>: testl %eax,%eax
0x526 <soundcore_open+86>: je 0x550 <soundcore_open+128>
0x528 <soundcore_open+88>: movl (%eax),%edx <=====
0x52a <soundcore_open+90>: testl %edx,%edx
0x52c <soundcore_open+92>: je 0x550 <soundcore_open+128>

Peter

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  _   x    ___   p.steiner@t-online.de (Peter Steiner)
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