[mythtv-users] Kernel Oops on mythfrontend

[James Tyson]

> Hi All.
>
> When I select LiveTV on my mythbox I get a kernel oops.
>
> My hardware is a Via C3 on an EPIA MII 10000 motherboard, with 512MB 
> of RAM.  Kernel is 2.6.8.1-epia1.  The video capture card in question 
> is a bt878 based card.
>
> I'm hoping someone on this list has an idea what's going on, otherwise 
> I'm screwed :)
>

Sorry.  I didn't run it through ksymoops :/

ksymoops 2.4.9 on i686 2.6.8.1-epia1.  Options used
      -V (default)
      -k /proc/ksyms (default)
      -l /proc/modules (default)
      -o /lib/modules/2.6.8.1-epia1/ (default)
      -m /boot/System.map-2.6.8.1-epia1 (default)

Warning: You did not tell me where to find symbol information.  I will
assume that the log matches the kernel and modules that are running
right now and I'll use the default options above for symbol resolution.
If the current kernel and/or modules do not match the log, you can get
more accurate output by telling me the kernel version and where to find
map, modules, ksyms etc.  ksymoops -h explains the options.

Error (regular_file): read_ksyms stat /proc/ksyms failed
No modules in ksyms, skipping objects
No ksyms, skipping lsmod
Sep 14 17:23:36 localhost kernel: Unable to handle kernel NULL pointer 
dereference at virtual address 00000004
Sep 14 17:23:36 localhost kernel: c0115485
Sep 14 17:23:36 localhost kernel: *pde = 00000000
Sep 14 17:23:36 localhost kernel: Oops: 0002 [#1]
Sep 14 17:23:36 localhost kernel: CPU:    0
Sep 14 17:23:36 localhost kernel: EIP:    0060:[add_wait_queue+21/48]   
  Not tainted
Sep 14 17:23:36 localhost kernel: EFLAGS: 00210046   (2.6.8.1-epia1)
Sep 14 17:23:36 localhost kernel: eax: dec50618   ebx: 00000000   ecx: 
d012defc   edx: d012def0
Sep 14 17:23:36 localhost kernel: esi: 00200246   edi: c01146f0   ebp: 
dec50400   esp: d012deac
Sep 14 17:23:36 localhost kernel: ds: 007b   es: 007b   ss: 0068
Sep 14 17:23:36 localhost kernel: Stack: d012c000 fffe04bd dec4315e 
00000000 00000000 00000001 dec50618 00000000
Sep 14 17:23:36 localhost kernel:        d939b26c 00000000 d2d66eb0 
c01146f0 00000000 00000000 d1ba4ce0 d939b26c
Sep 14 17:23:36 localhost kernel:        ffffffed 00000000 d2d66eb0 
c01146f0 00000000 00000000 c01b3dc2 d012df44
Sep 14 17:23:36 localhost kernel: Call Trace:
Warning (Oops_read): Code line not seen, dumping what data is available


 >>eax; dec50618 <__crc_generic_file_aio_write+17664c/3589f2>
 >>ecx; d012defc <__crc_isapnp_read_dword+536cb5/55145c>
 >>edx; d012def0 <__crc_isapnp_read_dword+536ca9/55145c>
 >>esi; 00200246 <__crc_blk_execute_rq+1ddda/40f127>
 >>edi; c01146f0 <default_wake_function+0/20>
 >>ebp; dec50400 <__crc_generic_file_aio_write+176434/3589f2>
 >>esp; d012deac <__crc_isapnp_read_dword+536c65/55145c>

Sep 14 17:23:36 localhost kernel: Code: 89 4b 04 89 5a 0c 89 41 04 89 
08 56 9d 8b 1c 24 8b 74 24 04
Using defaults from ksymoops -t elf32-i386 -a i386


Code;  00000000 Before first symbol
00000000 <_EIP>:
Code;  00000000 Before first symbol
    0:   89 4b 04                  mov    %ecx,0x4(%ebx)
Code;  00000003 Before first symbol
    3:   89 5a 0c                  mov    %ebx,0xc(%edx)
Code;  00000006 Before first symbol
    6:   89 41 04                  mov    %eax,0x4(%ecx)
Code;  00000009 Before first symbol
    9:   89 08                     mov    %ecx,(%eax)
Code;  0000000b Before first symbol
    b:   56                        push   %esi
Code;  0000000c Before first symbol
    c:   9d                        popf
Code;  0000000d Before first symbol
    d:   8b 1c 24                  mov    (%esp,1),%ebx
Code;  00000010 Before first symbol
   10:   8b 74 24 04               mov    0x4(%esp,1),%esi


2 warnings and 1 error issued.  Results may not be reliable.


---
James Tyson
If it's gigantic, it's probably something to do with us.
Giant Robot Ltd, http://www.giantrobot.co.nz/
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