[Bug 741] New: [2.5.69-bk14] Unable to handle kernel null pointer

Martin J. Bligh (mbligh@aracnet.com)
Fri, 23 May 2003 07:33:25 -0700


Summary: [2.5.69-bk14] Unable to handle kernel null pointer
Kernel Version: 2.5.69-bk14
Status: NEW
Severity: normal
Owner: jsimmons@infradead.org
Submitter: s.rivoir@gts.it

Distribution: Debian sid
Hardware Environment: HP Omnibook XE3l
Software Environment: kernel 2.5.69-bk14
Problem Description:

I get this everytime I run SVGATextMode with a resolution with more than 43
rows; I'm not sure that this failure it's a kernel bug, but I suppose it
should not give this error anyway...

Steps to reproduce:

# SVGATextMode "80x50x9"
<1>Unable to handle kernel NULL pointer dereference at virtual address
00000010
printing eip:
c01be43c
*pde = 00000000
Oops: 0002 [#9]
CPU: 0
EIP: 0060:[<c01be43c>] Not tainted
EFLAGS: 00013202
EIP is at vt_ioctl+0x1b3c/0x1d30
eax: 00000000 ebx: 000001e0 ecx: 00000000 edx: 00000000
esi: 00000006 edi: 0000000c ebp: 00000050 esp: c642fea8
ds: 007b es: 007b ss: 0068
Process SVGATextMode (pid: 342, threadinfo=c642e000 task=c6af0d00)
Stack: 00000005 00000050 00000028 00000001 c01c6b90 00000009 00000028
c7113000
c66e7540 c642fedc c7639ca0 c71eb940 00000101 c7113000 00000001
00000000
c71eb940 c11e67bc 00000001 c6f95000 000003e8 c015630c 000003e8
c11e67bc
Call Trace:
[<c01c6b90>] con_open+0x0/0x90
[<c015630c>] vfs_permission+0x7c/0x120
[<c015223d>] get_chrfops+0x2d/0x90
[<c015258a>] chrdev_open+0x6a/0xc0
[<c0148b7a>] dentry_open+0x1ea/0x220
[<c01bc900>] vt_ioctl+0x0/0x1d30
[<c01b5e6c>] tty_ioctl+0x45c/0x570
[<c015ada0>] sys_ioctl+0x100/0x280
[<c010922b>] syscall_call+0x7/0xb

Code: 89 58 10 66 85 ff 74 0a 8b 04 b5 60 7a 2f c0 89 78 68 89 34
Segmentation fault

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/