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Subject2.4.20 Kernel panic in IDE-SCSI with CDROM drive
Date
I recieved the appened kernel oops while attempting to mount a cdrom, as well 
as to dd the CDROM into a file. This as occured under 2.4.19 as well as
2.4.20 (reason why I tried upgrading). The drive is bootable and works fine
under Win98.

The oops in question locks the system up completely and causes Caps+Scroll
lock lights to blink.

The drive in question is an HP CD-RW drive, attached via IDE using IDE-SCSI.
I have also attached information on my drive, should it be useful.

Thank you for all of yuor hard work. Let me know if you need more info.
Garrett Kajmowicz
gkajmowi@tbayel.net



Output from ksymoops (kernel was NOT tainted):

Unable to handle kernel NULL pointer dereference at virtual address 00000018
Oops: 0
CPU: 0
EIP: 0010:[<c01e702b>]
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010286
eax: e7de5b40 ebx: c02df488 ecx: db5ef8c0 edx: db5ef8c0
esi: 00000000 edi: c02df488 ebp: 00000000 esp: c029fe90
ds: 00000018 es: 00000018 ss: 00000018
c01cda7c 000005dc e758ff7c 00000046 e7de5b40 00000000 00000000 c02df488
c02df444 c01cde6a c02df488 00000000 00000000 00000088 00000003 00000000
c026f414 c029ff00 00000000 aca424e9 c02df488 e7f46280 c02df444 db5ef8c0
Call trace: [<c01cda7c>] [<c01cde6a>] [<c01ce065>] [<c01ce345>] [<c01ce260>]
[<c011c3fe>] [<c0118842>] [<c0118756>] [<c0118594>] [<c0108a3e>] [<c01053a0>]
[<c010af98>] [<c01053a0>] [<c01053c3>] [<c0105432>] [<c0105000>]
Code: 8b 56 18 89 70 04 8b 46 1c 8b 7e 0c c7 46 10 00 00 00 00 89


>>EIP; c01e702b <idescsi_issue_pc+1b/1b0> <=====

>>eax; e7de5b40 <_end+27b01428/28566968>
>>ebx; c02df488 <ide_hwifs+388/20a8>
>>ecx; db5ef8c0 <_end+1b30b1a8/28566968>
>>edx; db5ef8c0 <_end+1b30b1a8/28566968>
>>edi; c02df488 <ide_hwifs+388/20a8>
>>esp; c029fe90 <init_task_union+1e90/2000>

Trace; c01cda7c <ide_wait_stat+bc/130>
Trace; c01cde6a <start_request+1ba/260>
Trace; c01ce065 <ide_do_request+c5/1c0>
Trace; c01ce345 <ide_timer_expiry+e5/1c0>
Trace; c01ce260 <ide_timer_expiry+0/1c0>
Trace; c011c3fe <run_timer_list+ee/160>
Trace; c0118842 <bh_action+22/40>
Trace; c0118756 <tasklet_hi_action+46/70>
Trace; c0118594 <do_softirq+94/a0>
Trace; c0108a3e <do_IRQ+9e/a0>
Trace; c01053a0 <default_idle+0/30>
Trace; c010af98 <call_do_IRQ+5/d>
Trace; c01053a0 <default_idle+0/30>
Trace; c01053c3 <default_idle+23/30>
Trace; c0105432 <cpu_idle+42/60>
Trace; c0105000 <_stext+0/0>

Code; c01e702b <idescsi_issue_pc+1b/1b0>
00000000 <_EIP>:
Code; c01e702b <idescsi_issue_pc+1b/1b0> <=====
0: 8b 56 18 mov 0x18(%esi),%edx <=====
Code; c01e702e <idescsi_issue_pc+1e/1b0>
3: 89 70 04 mov %esi,0x4(%eax)
Code; c01e7031 <idescsi_issue_pc+21/1b0>
6: 8b 46 1c mov 0x1c(%esi),%eax
Code; c01e7034 <idescsi_issue_pc+24/1b0>
9: 8b 7e 0c mov 0xc(%esi),%edi
Code; c01e7037 <idescsi_issue_pc+27/1b0>
c: c7 46 10 00 00 00 00 movl $0x0,0x10(%esi)
Code; c01e703e <idescsi_issue_pc+2e/1b0>
13: 89 00 mov %eax,(%eax)

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

--------------------Enf od ksymoops output----------------------------
Panic message ended with: In interupt handler - not syncing.

cat /proc/ide/drivers
ide-scsi version 0.9
ide-disk version 1.12

cat /proc/ide/ide1/config
pci bus 00 device 39 vid 1106 did 0571 channel 1
06 11 71 05 07 00 90 02 06 8a 01 01 00 20 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
01 d4 00 00 00 00 00 00 00 00 00 00 06 11 71 05
00 00 00 00 c0 00 00 00 00 00 00 00 ff 00 00 00
0b 52 09 3a 10 10 c0 00 a8 20 a8 20 11 00 20 20
07 07 07 e0 14 00 00 00 a8 a8 a8 a8 00 00 00 00
00 02 00 00 00 00 00 00 00 02 00 00 00 00 00 00
02 01 00 00 00 00 00 00 02 01 00 00 00 00 00 00
00 60 df 27 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
01 00 02 00 00 00 00 00 00 00 00 00 00 00 00 00
06 00 71 05 06 11 71 05 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

cat /proc/ide/ide1/hdc/settings
name value min max mode
---- ----- --- --- ----
bios_cyl 0 0 1023 rw
bios_head 0 0 255 rw
bios_sect 0 0 63 rw
current_speed 34 0 69 rw
ide_scsi 0 0 1 rw
init_speed 12 0 69 rw
io_32bit 1 0 3 rw
keepsettings 0 0 1 rw
log 0 0 1 rw
nice1 1 0 1 rw
number 2 0 3 rw
pio_mode write-only 0 255 w
slow 0 0 1 rw
transform 1 0 3 rw
unmaskirq 1 0 1 rw
using_dma 1 0 1 rw

cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 6
model : 6
model name : AMD Athlon(tm) XP 1800+
stepping : 2
cpu MHz : 1529.036
cache size : 256 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat
pse36 mmx fxsr sse syscall mmxext 3dnowext 3dnow
bogomips : 3047.42

Using version:
GNU assembler 2.13.2
gcc (GCC) 3.2.2
/lib/libc-2.3.1.so



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