In Kernel 2.5.1-pre3, I receive a kernal panic whenever I execute the
following two commands. This panic does not occur in 2.5.1-pre1. The
stock kernel has been patched with Alan Cox's pc_keyb.c patch and with
the early_printk patch.
I don't have time tonite to revert the early_printk patch and see if the
panic still happens. If anyone thinks it is relevant, I will try this
tomorrow without the early_printk patch.
If anyone would like more information, please let me know.
Mark Moss
kc8dei@softhome.net
The commands which generate the panic are:
losetup /dev/loop0 /dev/scd0
cat /dev/loop0
/dev/scd0 contains a CD-RW burned using the text "This is a test." as
the image.
Here is my transcription of the panic message: (Apologies for any
write-p's, it was transcribed by hand).
--- Unable to handle kernel NULL pointer dereference at virtual address 00000000.printing eip C01865F7 *pde=00000000 Oops: 0002 CPU: 0 EIP: 0010:[<C01865f7>] EEFlags: 00010046 eax: 00000000 ebx: 00000200 ecx:00000400 edx: 00000170 esi: C0283158 edi: 00000000 ebp:C0283158 esp: C022bcc4 dsi: 0018 esi:0018 ss:0018
Process Swapper CPU:0 Stackpage (022b0000)
Stack: 0000000C 00000003 00000801 C0283158 00000000 C0283158 C018671E C0283158 00000000 00000200 00000800 C0CD16E0 00000000 C886D12C C0283158 00000000 00000800 C0CD16C0 00000800 00000800 C0283158 C886D66D C0283158 C0CD1600
Call Trace: C018671E C886D12E C886D66D C8825730 C886D4B0 C0188078 C0181FA0 C0108378 C01053B0 C010A3E9 C01053B0 C01053D3 C0105452 C0105000
Code: F3 66 6D 5B 5E 5B 5E 5F 5D C3 EB 0D 90 90 90 90 90 90 90 90
<0> Kernel Panic: Proc Killing Interrupt Handler! In Interrupt Handler - not syncing ---
Modules Loaded: sg ide-scsi sr_mod cdrom smbfs 3c95x usb-uhci nls-iso8859-1 nls-cp437 msdos fat
Dump of SCSI Bus: Attached Devices Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: MITSUMI Model: CR-4804-TE Rev: 2.4C Type: CD-ROM ANSI SCSI revision 02.
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This archive was generated by hypermail 2b29 : Fri Nov 30 2001 - 21:00:33 EST