I hope all of the kernel patching has been done right. Mandrake's
latest kernel from their development branch has v4l2 all patched in.
Woohoo!
They have:
o 2.4.18 +
o patch-2.4.19-pre6.bz2 +
o v4l2-01-add-api-2.4.19-pre8.diff.gz
(the fact that the v4l2 patch says 2.4.19-pre8 and the kernel is only
2.4.19-pre6 worries me).
So I built bttv 0.8.38 and installed it into the kernel modules
directory but when I try to use it, I get an oops:
ksymoops 2.4.5 on i686 2.4.18-13mdk. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.4.18-13mdk/ (default)
-m /boot/System.map-2.4.18-13mdk (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.
Warning (compare_ksyms_lsmod): module ext3 is in lsmod but not in ksyms, probably no symbols exported
May 5 15:35:17 pc kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000004
May 5 15:35:17 pc kernel: c0118b01
May 5 15:35:17 pc kernel: *pde = 13b00067
May 5 15:35:17 pc kernel: Oops: 0002
May 5 15:35:17 pc kernel: CPU: 0
May 5 15:35:17 pc kernel: EIP: 0010:[add_wait_queue+17/48] Tainted: P
May 5 15:35:17 pc kernel: EIP: 0010:[<c0118b01>] Tainted: P
Using defaults from ksymoops -t elf32-i386 -a i386
May 5 15:35:17 pc kernel: EFLAGS: 00013046
May 5 15:35:17 pc kernel: eax: d528d544 ebx: 00000000 ecx: d3fa1f18 edx: d3fa1f10
May 5 15:35:17 pc kernel: esi: 00003246 edi: d528d4ec ebp: 00000000 esp: d3fa1ef4
May 5 15:35:17 pc kernel: ds: 0018 es: 0018 ss: 0018
May 5 15:35:17 pc kernel: Process X (pid: 2277, stackpage=d3fa1000)
May 5 15:35:17 pc kernel: Stack: d528d508 00000000 d89be5d3 00000000 d3fa0000 00000000 00000000 00000000
May 5 15:35:17 pc kernel: d3fa0000 00000000 00000000 d528d508 d528d4ec d89d18e0 d43d79c0 d89c8a21
May 5 15:35:17 pc kernel: d528d4ec 00000000 00000000 d528d400 d89d18e0 d446c560 d89c4a9a d89d18e0
May 5 15:35:17 pc kernel: Call Trace: [<d89be5d3>] [<d89d18e0>] [<d89c8a21>] [<d89d18e0>] [<d89c4a9a>]
May 5 15:35:17 pc kernel: [<d89d18e0>] [fput+77/224] [<d89c458e>] [filp_close+63/96] [sys_close+67/80] [system_call+51/64]
May 5 15:35:17 pc kernel: [<d89d18e0>] [<c013926d>] [<d89c458e>] [<c013817f>] [<c01381e3>] [<c0108b73>]
May 5 15:35:17 pc kernel: Code: 89 4b 04 89 5a 08 89 41 04 89 08 56 9d 5b 5e c3 eb 0d 90 90
>>EIP; c0118b01 <add_wait_queue+11/30> <=====
>>eax; d528d544 <_end+14f846f0/184fb1fc>
>>ecx; d3fa1f18 <_end+13c990c4/184fb1fc>
>>edx; d3fa1f10 <_end+13c990bc/184fb1fc>
>>esi; 00003246 Before first symbol
>>edi; d528d4ec <_end+14f84698/184fb1fc>
>>esp; d3fa1ef4 <_end+13c990a0/184fb1fc>
Trace; d89be5d3 <[video-buf]videobuf_waiton+63/f0>
Trace; d89d18e0 <[bttv]bttvs+0/1c30>
Trace; d89c8a21 <[bttv]bttv_dma_free+31/70>
Trace; d89d18e0 <[bttv]bttvs+0/1c30>
Trace; d89c4a9a <[bttv]bttv_release+4a/60>
Trace; d89d18e0 <[bttv]bttvs+0/1c30>
Trace; d89d18e0 <[bttv]bttvs+0/1c30>
Trace; c013926d <fput+4d/e0>
Trace; d89c458e <[bttv]bttv_ioctl+1e/30>
Trace; c013817f <filp_close+3f/60>
Trace; c01381e3 <sys_close+43/50>
Trace; c0108b73 <system_call+33/40>
Code; c0118b01 <add_wait_queue+11/30>
00000000 <_EIP>:
Code; c0118b01 <add_wait_queue+11/30> <=====
0: 89 4b 04 mov %ecx,0x4(%ebx) <=====
Code; c0118b04 <add_wait_queue+14/30>
3: 89 5a 08 mov %ebx,0x8(%edx)
Code; c0118b07 <add_wait_queue+17/30>
6: 89 41 04 mov %eax,0x4(%ecx)
Code; c0118b0a <add_wait_queue+1a/30>
9: 89 08 mov %ecx,(%eax)
Code; c0118b0c <add_wait_queue+1c/30>
b: 56 push %esi
Code; c0118b0d <add_wait_queue+1d/30>
c: 9d popf
Code; c0118b0e <add_wait_queue+1e/30>
d: 5b pop %ebx
Code; c0118b0f <add_wait_queue+1f/30>
e: 5e pop %esi
Code; c0118b10 <add_wait_queue+20/30>
f: c3 ret
Code; c0118b11 <add_wait_queue+21/30>
10: eb 0d jmp 1f <_EIP+0x1f> c0118b20 <add_wait_queue_exclusive+0/30>
Code; c0118b13 <add_wait_queue+23/30>
12: 90 nop
Code; c0118b14 <add_wait_queue+24/30>
13: 90 nop
2 warnings issued. Results may not be reliable.
Is 2.4.19-pre6 too early for the v4l2 patch they applied?
Thanx,
b.
--
Brian J. Murrell
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