Messages in this thread | | | Date | Sun, 17 Oct 1999 18:37:06 +0300 (EET DST) | From | "Rus V. Brushkoff" <> | Subject | Oops in 2.3.22 while doing 'cat /dev/sndstat' |
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Hi.
I have a CS4236 card. It has to be initialized from msdos program, when it is initialized I have 'Permission denied' (from root) while catting /dev/sndstat, when it is not initialized I've got :
ksymoops 0.7c on i586 2.3.22. Options used -V (default) -k /proc/ksyms (default) -l /proc/modules (default) -o /lib/modules/2.3.22/ (default) -m /System.map (specified)
Unable to handle kernel NULL pointer dereference at virtual address 000000a8 c01a3083 *pde = 00000000 Oops: 0000 CPU: 0 EIP: 0010:[<c01a3083>] Using defaults from ksymoops -t elf32-i386 -a i386 EFLAGS: 00010246 eax: c01f4460 ebx: 00000000 ecx: 0000025e edx: 00000000 esi: 00001000 edi: 00000000 ebp: 00000000 esp: c0abdf68 ds: 0018 es: 0018 ss: 0018 Process cat (pid: 151, stackpage=c0abd000) Stack: c0a1e0e0 08003528 c097b000 c097b000 c01ac10b 00000006 c0a1e0e0 08003528 00001000 c0a1e0e0 ffffffea 00000000 c0a1e0e0 c0124af1 c0a1e0e0 08003528 00001000 c0a1e0fc c0abc000 08003528 00000003 bffff970 c0107d24 00000003 Call Trace: [<c01ac10b>] [<c0124af1>] [<c0107d24>] Code: f6 82 a8 00 00 00 01 75 0a b8 ff ff ff ff e9 18 01 00 00 f6
>>EIP; c01a3083 <audio_read+23/158> <===== Trace; c01ac10b <sound_read+4b/78> Trace; c0124af1 <sys_read+bd/dc> Trace; c0107d24 <system_call+34/40> Code; c01a3083 <audio_read+23/158> 00000000 <_EIP>: Code; c01a3083 <audio_read+23/158> <===== 0: f6 82 a8 00 00 00 01 testb $0x1,0xa8(%edx) <===== Code; c01a308a <audio_read+2a/158> 7: 75 0a jne 13 <_EIP+0x13> c01a3096 <audio_read+36/158> Code; c01a308c <audio_read+2c/158> 9: b8 ff ff ff ff mov $0xffffffff,%eax Code; c01a3091 <audio_read+31/158> e: e9 18 01 00 00 jmp 12b <_EIP+0x12b> c01a31ae <audio_read+14e/158> Code; c01a3096 <audio_read+36/158> 13: f6 00 00 testb $0x0,(%eax)
Oct 16 16:32:03 localhost kernel: Unable to handle kernel NULL pointer Oct 16 16:32:03 localhost kernel: *pde = 00000000
................
Also the card is not detected if the ISA PNP option enabled in the kernel.
Rus
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