On Wed, 18 Feb 2004 14:31:15 -0500 (EST)
Alan Stern <[EMAIL PROTECTED]> wrote:
> On Wed, 18 Feb 2004, Stephen Hemminger wrote:
>
> > Got this running with my irda driver that does lots of unlinks
> > with 2.6.3.
> > Looks like another race between the interrupt and unlink.
>
> My compiled code is different from yours. Can you either tell me which
> source line in uhci_unlink_generic() is at offset 0xe4 or else post a
> disassembled listing of the routine?
0000360c <uhci_unlink_generic>:
360c: 55 push %ebp
360d: 89 e5 mov %esp,%ebp
360f: 57 push %edi
3610: 56 push %esi
3611: 53 push %ebx
3612: 83 ec 24 sub $0x24,%esp
3615: 8b 45 0c mov 0xc(%ebp),%eax
3618: 8b 40 08 mov 0x8(%eax),%eax
361b: c7 45 e8 01 00 00 00 movl $0x1,0xffffffe8(%ebp)
3622: 85 c0 test %eax,%eax
3624: 89 45 ec mov %eax,0xffffffec(%ebp)
3627: 0f 84 6a 01 00 00 je 3797 <uhci_unlink_generic+0x18b>
362d: 8b 55 0c mov 0xc(%ebp),%edx
3630: 89 54 24 04 mov %edx,0x4(%esp,1)
3634: 8b 4d 08 mov 0x8(%ebp),%ecx
3637: 89 0c 24 mov %ecx,(%esp,1)
363a: e8 23 ed ff ff call 2362 <uhci_dec_fsbr>
363f: 8b 55 ec mov 0xffffffec(%ebp),%edx
3642: 8b 45 ec mov 0xffffffec(%ebp),%eax
3645: 83 c0 10 add $0x10,%eax
3648: 89 45 f0 mov %eax,0xfffffff0(%ebp)
364b: 8b 72 10 mov 0x10(%edx),%esi
364e: 39 c6 cmp %eax,%esi
3650: 3e 0f 85 93 00 00 00 jne,pt 36ea <uhci_unlink_generic+0xde>
3657: e9 0a 01 00 00 jmp 3766 <uhci_unlink_generic+0x15a>
365c: 8b 45 e4 mov 0xffffffe4(%ebp),%eax
365f: 8d 53 01 lea 0x1(%ebx),%edx
3662: 8b 78 08 mov 0x8(%eax),%edi
3665: 81 e2 ff 07 00 00 and $0x7ff,%edx
366b: 89 f8 mov %edi,%eax
366d: c1 e8 15 shr $0x15,%eax
3670: 83 c0 01 add $0x1,%eax
3673: 25 ff 07 00 00 and $0x7ff,%eax
3678: 39 c2 cmp %eax,%edx
367a: 0f 92 c2 setb %dl
367d: 3b 75 f0 cmp 0xfffffff0(%ebp),%esi
3680: 0f 94 c0 sete %al
3683: 09 d0 or %edx,%eax
3685: a8 01 test $0x1,%al
3687: 74 7a je 3703 <uhci_unlink_generic+0xf7>
3689: 89 f8 mov %edi,%eax
368b: 31 c9 xor %ecx,%ecx
368d: 8b 55 0c mov 0xc(%ebp),%edx
3690: 25 ff 00 00 00 and $0xff,%eax
3695: 8b 52 18 mov 0x18(%edx),%edx
3698: 83 f8 69 cmp $0x69,%eax
369b: 89 55 dc mov %edx,0xffffffdc(%ebp)
369e: b8 01 00 00 00 mov $0x1,%eax
36a3: 0f 95 c1 setne %cl
36a6: c1 ef 0f shr $0xf,%edi
36a9: 89 fb mov %edi,%ebx
36ab: 89 4d d8 mov %ecx,0xffffffd8(%ebp)
36ae: 89 ca mov %ecx,%edx
36b0: 83 e3 0f and $0xf,%ebx
36b3: c1 ef 04 shr $0x4,%edi
36b6: 89 d9 mov %ebx,%ecx
36b8: 83 e7 01 and $0x1,%edi
36bb: d3 e0 shl %cl,%eax
36bd: 83 f7 01 xor $0x1,%edi
36c0: 8b 4d dc mov 0xffffffdc(%ebp),%ecx
36c3: f7 d0 not %eax
36c5: 23 44 91 38 and 0x38(%ecx,%edx,4),%eax
36c9: 89 d9 mov %ebx,%ecx
36cb: d3 e7 shl %cl,%edi
36cd: 8b 4d dc mov 0xffffffdc(%ebp),%ecx
36d0: 09 f8 or %edi,%eax
36d2: 89 44 91 38 mov %eax,0x38(%ecx,%edx,4)
36d6: 8b 45 e4 mov 0xffffffe4(%ebp),%eax
36d9: 8b 58 04 mov 0x4(%eax),%ebx
36dc: 81 e3 00 00 80 00 and $0x800000,%ebx
36e2: 3b 75 f0 cmp 0xfffffff0(%ebp),%esi
36e5: 89 5d e8 mov %ebx,0xffffffe8(%ebp)
36e8: 74 7c je 3766 <uhci_unlink_generic+0x15a>
36ea: 8d 4e e4 lea 0xffffffe4(%esi),%ecx
36ed: 89 4d e4 mov %ecx,0xffffffe4(%ebp)
36f0: 8b 59 04 mov 0x4(%ecx),%ebx
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