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SubjectRe: General protection fault when unloading snd_hda_intel on 2.6.30-rc1+
On Sat 11.Apr'09 at 13:20:33 -0700, Arjan van de Ven wrote:
>
> if you happen to have CONFIG_DEBUG_INFO enabled, then you can run the
> oops through scripts/markup_oops.pl to get the source code of the exact
> line that is oopsing.. makes diagnosing it even easier!

I did not have CONFIG_DEBUG_INFO enabled back then, but now I have.

The script gives me this output:

No vmlinux specified, assuming /lib/modules/2.6.30-rc1-00191-gd848223/build/vmlinux
add_input_randomness(type, code, value);
input_handle_event(dev, type, code, value);
spin_unlock_irqrestore(&dev->event_lock, flags);
}
}
ffffffff8044bf7a: 48 8b 5d d8 mov -0x28(%rbp),%rbx | %ebx => 3
ffffffff8044bf7e: 4c 8b 65 e0 mov -0x20(%rbp),%r12 | %r12 => ffffffff805bb97c
ffffffff8044bf82: 4c 8b 6d e8 mov -0x18(%rbp),%r13 | %r13 => 5
ffffffff8044bf86: 4c 8b 75 f0 mov -0x10(%rbp),%r14 | %r14 => 697665646632785c
ffffffff8044bf8a: 4c 8b 7d f8 mov -0x8(%rbp),%r15 | %r15 => 0
ffffffff8044bf8e: c9 leaveq
ffffffff8044bf8f: c3 retq
static inline int variable_test_bit(int nr, volatile const unsigned long *addr)
{
int oldbit;
asm volatile("bt %2,%1\n\t"
*ffffffff8044bf90: 0f a3 77 20 bt %esi,0x20(%rdi) | %edi = 697665646632785c %esi = 5 <--- faulting instruction
ffffffff8044bf94: 19 c0 sbb %eax,%eax
static struct input_handler *input_table[8];
static inline int is_event_supported(unsigned int code,
unsigned long *bm, unsigned int max)
{
return code <= max && test_bit(code, bm);
ffffffff8044bf96: 85 c0 test %eax,%eax
ffffffff8044bf98: 74 e0 je ffffffff8044bf7a <input_event+0x2a>
{
unsigned long flags;
if (is_event_supported(type, dev->evbit, EV_MAX)) {


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