PROBLEM: Atapi IDE CD/DVD Driver - Ooops, Unable to handle kernel NULL pointer dere....

Quoted 1 line

EIP; c018c91a <ide_revalidate_disk+da/110> <=====

Currently running Redhat 7.2 (uname = 'Linux corona 2.4.7-10 #1 Thu Sep 6 16:46:36 EDT 2001 i686 unknown'). AMD 1600, Asus AV333 Motherboard,

Keywords: Modules Ooops CD-ROM DVD

Hi,

Currently running Redhat 7.2 (uname = 'Linux corona 2.4.7-10 #1 Thu Sep 6 16:46:36 EDT 2001 i686 unknown'). AMD 1600, Asus AV333 Motherboard, MATSHITADVD-ROM SR-8587, ATAPI CD/DVD-ROM drive. I get the following Ooops on booting (output below). The CD-Rom will become unusable and the ide-cd module will remain in the initalising state (judging by the output from lsmod). It occurs intermittantly, a reboot has so far fixed the problem. It has occured twice in the last 6 or so boots of my machine. If you need any more info let me know. I am not on the lkml so if you could cc me in the reply that would be appreciated.

Thanks,
Michael Barker
[email protected]

Ooops message (from ksysoops thingy):

Error (expand_objects): cannot stat(/lib/aic7xxx.o) for aic7xxx Error (expand_objects): cannot stat(/lib/sd_mod.o) for sd_mod Error (expand_objects): cannot stat(/lib/scsi_mod.o) for scsi_mod Error (pclose_local): find_objects pclose failed 0x100 Warning (compare_maps): mismatch on symbol partition_name , ksyms_base says c01b30d0, System.map says c0154d30. Ignoring ksyms_base entry Warning (compare_maps): mismatch on symbol usb_devfs_handle , usbcore says d0966a00, /lib/modules/2.4.7-10/kernel/drivers/usb/usbcore.o says d0966520. Ignoring /lib/modules/2.4.7-10/kernel/drivers/usb/usbcore.o entry
Warning (map_ksym_to_module): cannot match loaded module ext3 to a unique module object. Trace may not be reliable.
Warning (compare_maps): mismatch on symbol sd , sd_mod says d081bce4, /lib/modules/2.4.7-10/kernel/drivers/scsi/sd_mod.o says d081bba0. Ignoring /lib/modules/2.4.7-10/kernel/drivers/scsi/sd_mod.o entry Warning (compare_maps): mismatch on symbol proc_scsi , scsi_mod says d08175c8, /lib/modules/2.4.7-10/kernel/drivers/scsi/scsi_mod.o says d0815e50. Ignoring /lib/modules/2.4.7-10/kernel/drivers/scsi/scsi_mod.o entry
Warning (compare_maps): mismatch on symbol scsi_devicelist , scsi_mod says d08175f4, /lib/modules/2.4.7-10/kernel/drivers/scsi/scsi_mod.o says d0815e7c. Ignoring /lib/modules/2.4.7-10/kernel/drivers/scsi/scsi_mod.o entry
Warning (compare_maps): mismatch on symbol scsi_hostlist , scsi_mod says d08175f0, /lib/modules/2.4.7-10/kernel/drivers/scsi/scsi_mod.o says d0815e78. Ignoring /lib/modules/2.4.7-10/kernel/drivers/scsi/scsi_mod.o entry
Warning (compare_maps): mismatch on symbol scsi_hosts , scsi_mod says d08175f8, /lib/modules/2.4.7-10/kernel/drivers/scsi/scsi_mod.o says d0815e80. Ignoring /lib/modules/2.4.7-10/kernel/drivers/scsi/scsi_mod.o entry
Warning (compare_maps): mismatch on symbol scsi_logging_level , scsi_mod says d08175c4, /lib/modules/2.4.7-10/kernel/drivers/scsi/scsi_mod.o says d0815e4c. Ignoring /lib/modules/2.4.7-10/kernel/drivers/scsi/scsi_mod.o entry 3c59x: Donald Becker and others. www.scyld.com/network/vortex.html

Unable to handle kernel NULL pointer dereference at virtual address
00000028
c018c91a
*pde = 00000000
Oops: 0000
CPU:    0
EIP:    0010:[<c018c91a>]

Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00210212
eax: 00000000 ebx: 00001600 ecx: 00000000 edx: 00000000
esi: c02e1e50 edi: 00001100 ebp: 00000040 esp: cae83edc
ds: 0018 es: 0018 ss: 0018
Process modprobe (pid: 1299, stackpage=cae83000)

Stack: 00001600 00000000 00000330 00000000 c02e2118 00000330 c018c9b1
00001600 
       00000001 cc221e00 00000000 cc221f44 00000002 c018eed5 d1b08a57
d1b0b980 
       d1b05000 00000001 00000001 00000001 c0117795 d1b0b87c ca961000
00006778 
Call Trace: [<c018c9b1>] [<c018eed5>] [<d1b08a57>] [<d1b0b980>]
[<d1b05000>] 
   [<c0117795>] [<d1b0b87c>] [<d1afd000>] [<d1b05060>] [<c0106f2b>] 
Code: 8b 40 28 85 c0 74 04 56 ff d0 5a 80 a6 ae 00 00 00 fb 8d 86 

Quoted 1 line

Quoted 1 line

EIP; c018c91a <ide_revalidate_disk+da/110> <=====

Trace; c018c9b1 <revalidate_drives+61/90> Trace; c018eed5 <ide_register_module+35/40> Trace; d1b08a57 <[ide-cd]init_module+187/19f> Trace; d1b0b980 <[ide-cd]ide_cdrom_module+0/10> Trace; d1b05000 <[ide-cd]__module_kernel_version+0/18> Trace; c0117795 <sys_init_module+535/5f0> Trace; d1b0b87c <[ide-cd].LC76+1c/40>
Trace; d1afd000 <[cmpci]__module_description+1c00/1c60> Trace; d1b05060 <[ide-cd]cdrom_saw_media_change+0/30> Trace; c0106f2b <system_call+33/38>
Code; c018c91a <ide_revalidate_disk+da/110> 00000000 <_EIP>:
Code; c018c91a <ide_revalidate_disk+da/110> <=====
0: 8b 40 28 mov 0x28(%eax),%eax <=====
Code; c018c91d <ide_revalidate_disk+dd/110>
3: 85 c0 test %eax,%eax
Code; c018c91f <ide_revalidate_disk+df/110>
5: 74 04 je b <_EIP+0xb> c018c925
<ide_revalidate_disk+e5/110>
Code; c018c921 <ide_revalidate_disk+e1/110>
7: 56 push %esi
Code; c018c922 <ide_revalidate_disk+e2/110>
8: ff d0 call *%eax
Code; c018c924 <ide_revalidate_disk+e4/110>
a: 5a pop %edx
Code; c018c925 <ide_revalidate_disk+e5/110>
b: 80 a6 ae 00 00 00 fb andb $0xfb,0xae(%esi)
Code; c018c92c <ide_revalidate_disk+ec/110>
12: 8d 86 00 00 00 00 lea 0x0(%esi),%eax

10 warnings and 6 errors issued. Results may not be reliable.

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