[linux-dvb] swfilter bug

[Emard <emard@softhome.net>]

HI

in dvb-kernel I catched the oops that crashed the machine,
it's in dmx swfilter (and it happens also on the version
I considered stable)

Emard

ksymoops 2.4.5 on i686 2.4.20.  Options used
     -V (default)
     -k /proc/ksyms (default)
     -l /proc/modules (default)
     -o /lib/modules/2.4.20/ (default)
     -m /boot/2.4.20/System.map (specified)

Unable to handle kernel paging request at virtual address f89b4000
f895fe33
*pde = 019ce067
Oops: 0000
CPU:    0
EIP:    0010:[<f895fe33>]    Tainted: PF
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00210203
eax: ffffffe2   ebx: 000000da   ecx: 3fffa22f   edx: f1cd0e88
esi: f89b3ffe   edi: f89d9820   ebp: ffffffe2   esp: edb5bef8
ds: 0018   es: 0018   ss: 0018
Process gqview (pid: 1185, stackpage=edb5b000)
Stack: f89c20e8 f89c210e f89601d7 f89c20e8 f89c20fc f899c8da ffffffe2 f89c20e8 
       f899c800 f1cd0e88 00000200 000000da f1cd0e88 f8960452 f89c20e8 f899c800 
       00000200 f899c800 f89604ae f1cd0e88 f899c800 f1cd0000 00000000 f8985000 
Call Trace:    [<f89601d7>] [<f8960452>] [<f89604ae>] [<f898039e>] [<c01183ee>]
  [<c011827a>] [<c010804d>] [<c010a208>]
Code: f3 a5 a8 02 74 02 66 a5 a8 01 74 01 a4 5e 5f c3 90 83 ec 04 


>>EIP; f895fe33 <[dvb-core]dvb_dmx_memcopy+13/24>   <=====

>>eax; ffffffe2 <END_OF_CODE+767e3a3/????>
>>ecx; 3fffa22f Before first symbol
>>edx; f1cd0e88 <_end+319cc0ec/385af264>
>>esi; f89b3ffe <END_OF_CODE+323bf/????>
>>edi; f89d9820 <END_OF_CODE+57be1/????>
>>ebp; ffffffe2 <END_OF_CODE+767e3a3/????>
>>esp; edb5bef8 <_end+2d85715c/385af264>

Trace; f89601d7 <[dvb-core]dvb_dmx_swfilter_section_packet+31f/49c>
Trace; f8960452 <[dvb-core]dvb_dmx_swfilter_packet+fe/11c>
Trace; f89604ae <[dvb-core]dvb_dmx_swfilter_packets+3e/50>
Trace; f898039e <[dvb-ttpci-budget]fidbirq+9e/cc>
Trace; c01183ee <tasklet_action+46/64>
Trace; c011827a <do_softirq+5a/a4>
Trace; c010804d <do_IRQ+c1/d4>
Trace; c010a208 <call_do_IRQ+5/d>

Code;  f895fe33 <[dvb-core]dvb_dmx_memcopy+13/24>
00000000 <_EIP>:
Code;  f895fe33 <[dvb-core]dvb_dmx_memcopy+13/24>   <=====
   0:   f3 a5                     repz movsl %ds:(%esi),%es:(%edi)   <=====
Code;  f895fe35 <[dvb-core]dvb_dmx_memcopy+15/24>
   2:   a8 02                     test   $0x2,%al
Code;  f895fe37 <[dvb-core]dvb_dmx_memcopy+17/24>
   4:   74 02                     je     8 <_EIP+0x8> f895fe3b <[dvb-core]dvb_dmx_memcopy+1b/24>
Code;  f895fe39 <[dvb-core]dvb_dmx_memcopy+19/24>
   6:   66 a5                     movsw  %ds:(%esi),%es:(%edi)
Code;  f895fe3b <[dvb-core]dvb_dmx_memcopy+1b/24>
   8:   a8 01                     test   $0x1,%al
Code;  f895fe3d <[dvb-core]dvb_dmx_memcopy+1d/24>
   a:   74 01                     je     d <_EIP+0xd> f895fe40 <[dvb-core]dvb_dmx_memcopy+20/24>
Code;  f895fe3f <[dvb-core]dvb_dmx_memcopy+1f/24>
   c:   a4                        movsb  %ds:(%esi),%es:(%edi)
Code;  f895fe40 <[dvb-core]dvb_dmx_memcopy+20/24>
   d:   5e                        pop    %esi
Code;  f895fe41 <[dvb-core]dvb_dmx_memcopy+21/24>
   e:   5f                        pop    %edi
Code;  f895fe42 <[dvb-core]dvb_dmx_memcopy+22/24>
   f:   c3                        ret    
Code;  f895fe43 <[dvb-core]dvb_dmx_memcopy+23/24>
  10:   90                        nop    
Code;  f895fe44 <[dvb-core]dvb_dmx_swfilter_sectionfilter+0/74>
  11:   83 ec 04                  sub    $0x4,%esp

 <0>Kernel panic: Aiee, killing interrupt handler!


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