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

From: Samuel Flory (sflory@rackable.com)
Date: Tue May 28 2002 - 16:30:56 EST


  This is really a better question asked at on the red hat mailing
lists. Now if it occured on 2.4.18 or 2.4.19pre8 from kernel.org this
would be the place.

http://www.redhat.com/mailing-lists/

On Tue, 2002-05-28 at 14:10, Michael Barker wrote:
> 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
> mbarker@dsl.pipex.com
>
> 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
>
> >>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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