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SubjectRe: Oops on 2.4.7-ac7 / ac11 in ide-scsi
  Hello,

I tried again with 2.4.8-ac4, figured it would better than ac2 ...

I get the same trap (see attached ksymoops)
(I was lazy so the register values are not correct)


Trace; d0979621 <[scsi_mod]scsi_old_done+281/620>
Trace; d0983455 <[ide-scsi]idescsi_end_request+205/260>
Trace; d09837a5 <[ide-scsi]idescsi_transfer_pc+a5/c0>
Trace; d0983536 <[ide-scsi]idescsi_pc_intr+86/250>
Trace; c0186288 <ide_set_handler+58/60>
Trace; c0107b00 <do_segment_not_present+30/a0>
Trace; d09834b0 <[ide-scsi]idescsi_pc_intr+0/250>
Trace; c01084aa <handle_IRQ_event+3a/70>
Code; 00000000 Before first symbol
00000000 <_EIP>:
Code; 00000000 Before first symbol
0: f3 ab repz stos %eax,%es:(%edi)
Code; 00000002 Before first symbol
2: 8b 43 0c mov 0xc(%ebx),%eax
Code; 00000005 Before first symbol
5: 80 b8 d9 00 00 00 03 cmpb $0x3,0xd9(%eax)
Code; 0000000c Before first symbol
c: 7f 0a jg 18 <_EIP+0x18> 00000018 Before
first symbol
Code; 0000000e Before first symbol
e: 0f b6 43 4c movzbl 0x4c(%ebx),%eax
Code; 00000012 Before first symbol
12: c0 e0 00 shl $0x0,%al

I'll keep trying ...


Francois


Alan Cox wrote:

>> I can trigger this oops from a user program running from a non
>>priviledged account : dos -A (dosemu). It kills the kernel in an
>>interrupt routine so I have to transcribe the oops from the dump
>>on-screen :-)
>>
>
> Does this still happen on 2.4.8ac2. I backed out a change in the scsi
> code that seemed to make things very unhappy for several ide-scsi users.
>
> .
>
>


ksymoops 2.4.0 on i686 2.4.8-ac4. Options used
-v ./work/linux/linux-2.4.8/vmlinux (specified)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.4.8-ac4/ (default)
-m /boot/System.map-2.4.8-ac4 (default)

Warning (compare_maps): mismatch on symbol packet_socks_nr , af_packet says d09a5e64, /lib/modules/2.4.8-ac4/kernel/net/packet/af_packet.o says d09a5c44. Ignoring /lib/modules/2.4.8-ac4/kernel/net/packet/af_packet.o entry
Warning (compare_maps): mismatch on symbol proc_scsi , scsi_mod says d09811ac, /lib/modules/2.4.8-ac4/kernel/drivers/scsi/scsi_mod.o says d0980c50. Ignoring /lib/modules/2.4.8-ac4/kernel/drivers/scsi/scsi_mod.o entry
Warning (compare_maps): mismatch on symbol scsi_devicelist , scsi_mod says d09811d8, /lib/modules/2.4.8-ac4/kernel/drivers/scsi/scsi_mod.o says d0980c7c. Ignoring /lib/modules/2.4.8-ac4/kernel/drivers/scsi/scsi_mod.o entry
Warning (compare_maps): mismatch on symbol scsi_hostlist , scsi_mod says d09811d4, /lib/modules/2.4.8-ac4/kernel/drivers/scsi/scsi_mod.o says d0980c78. Ignoring /lib/modules/2.4.8-ac4/kernel/drivers/scsi/scsi_mod.o entry
Warning (compare_maps): mismatch on symbol scsi_hosts , scsi_mod says d09811dc, /lib/modules/2.4.8-ac4/kernel/drivers/scsi/scsi_mod.o says d0980c80. Ignoring /lib/modules/2.4.8-ac4/kernel/drivers/scsi/scsi_mod.o entry
Warning (compare_maps): mismatch on symbol scsi_logging_level , scsi_mod says d09811a8, /lib/modules/2.4.8-ac4/kernel/drivers/scsi/scsi_mod.o says d0980c4c. Ignoring /lib/modules/2.4.8-ac4/kernel/drivers/scsi/scsi_mod.o entry
Warning (compare_maps): mismatch on symbol md_size , md says d0888120, /lib/modules/2.4.8-ac4/kernel/drivers/md/md.o says d0887f40. Ignoring /lib/modules/2.4.8-ac4/kernel/drivers/md/md.o entry
Warning (compare_maps): mismatch on symbol mddev_map , md says d0887920, /lib/modules/2.4.8-ac4/kernel/drivers/md/md.o says d0887740. Ignoring /lib/modules/2.4.8-ac4/kernel/drivers/md/md.o entry
Warning (compare_maps): mismatch on symbol usb_devfs_handle , usbcore says d086da80, /lib/modules/2.4.8-ac4/kernel/drivers/usb/usbcore.o says d086d5a0. Ignoring /lib/modules/2.4.8-ac4/kernel/drivers/usb/usbcore.o entry
Warning (compare_maps): mismatch on symbol unix_socket_table , unix says d0803200, /lib/modules/2.4.8-ac4/kernel/net/unix/unix.o says d0802e60. Ignoring /lib/modules/2.4.8-ac4/kernel/net/unix/unix.o entry
CPU: 0
EIP: 0010:d09792a9
EFLAGS: 00010046
eax: 00000000 ebx: 00000000 ecx: 00000010 edx: c970e104
esi: 00000bb8 edi: c870c104 ebp: 00000004 esp: c776fdc0
ds: 0018 es: 0000 ss: 0018
Process dos (pid: 1778, stackpage=c776f000)
Stack: c9e4e800 c9e4e800 d0979621 c9e4e800 00000002 cccbc000 00000000 00000000
Call Trace: d0979621 d0983455 d09837a5 d0983536 c0186288 c0107b00 d09834b0 c01084aa
Code: f3 ab 8b 43 0c 80 b8 d9 00 00 00 03 7f 0a 0f b6 43 4c c0 e0
Using defaults from ksymoops -t elf32-i386 -a i386

Trace; d0979621 <[scsi_mod]scsi_old_done+281/620>
Trace; d0983455 <[ide-scsi]idescsi_end_request+205/260>
Trace; d09837a5 <[ide-scsi]idescsi_transfer_pc+a5/c0>
Trace; d0983536 <[ide-scsi]idescsi_pc_intr+86/250>
Trace; c0186288 <ide_set_handler+58/60>
Trace; c0107b00 <do_segment_not_present+30/a0>
Trace; d09834b0 <[ide-scsi]idescsi_pc_intr+0/250>
Trace; c01084aa <handle_IRQ_event+3a/70>
Code; 00000000 Before first symbol
00000000 <_EIP>:
Code; 00000000 Before first symbol
0: f3 ab repz stos %eax,%es:(%edi)
Code; 00000002 Before first symbol
2: 8b 43 0c mov 0xc(%ebx),%eax
Code; 00000005 Before first symbol
5: 80 b8 d9 00 00 00 03 cmpb $0x3,0xd9(%eax)
Code; 0000000c Before first symbol
c: 7f 0a jg 18 <_EIP+0x18> 00000018 Before first symbol
Code; 0000000e Before first symbol
e: 0f b6 43 4c movzbl 0x4c(%ebx),%eax
Code; 00000012 Before first symbol
12: c0 e0 00 shl $0x0,%al


10 warnings issued. Results may not be reliable.
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