http://bugzilla.kernel.org/show_bug.cgi?id=7107
Summary: Kernel Oops on drm modules unload
Kernel Version: 2.6.17.11
Status: NEW
Severity: normal
Owner: [EMAIL PROTECTED]
Submitter: [EMAIL PROTECTED]
Most recent kernel where this bug did not occur:
I have the most recent stable kernel
Distribution:
Gentoo
Hardware Environment:
Laptop with P4 "prescott" 3200MHz, 1024MB of RAM, matherboard Sis 648FX, Ati
mobility radeon 9700 with 128MB
Software Environment:
Kernel 2.6.17.11 #1 SMP PREEMPT Fri Aug 25 00:18:56 CEST 2006 i686 Intel(R)
Pentium(R) 4 CPU 3.20GHz GenuineIntel GNU/Linux
gcc version 4.1.1 (Gentoo 4.1.1) and Thread model: posix
Problem Description:
I have unloaded radeon module and then drm with the command modprobe -r radeon
drm. This is what I found later on screen: (this was happened 2 times)
First:
BUG: unable to handle kernel NULL pointer dereference at virtual address
00000000
printing eip:
f989bfda
*pde = 00000000
Oops: 0000 [#1]
PREEMPT SMP
Modules linked in: radeon drm usbhid
CPU: 0
EIP: 0060:[pg0+960786394/1069192192] Not tainted VLI
EIP: 0060:[<f989bfda>] Not tainted VLI
EFLAGS: 00010293 (2.6.17.11 #1)
EIP is at drm_lastclose+0xb3/0x36b [drm]
eax: 00000000 ebx: f721a400 ecx: 00000000 edx: 00000000
esi: f721a400 edi: fffffff4 ebp: 00000000 esp: e8127f08
ds: 007b es: 007b ss: 0068
Process modprobe (pid: 19630, threadinfo=e8126000 task=c1a33540)
Stack: 00000000 e8126000 00000202 f721a41c f721a400 00000000 f9a1c7a0 00000000
f98a21b3 00100100 00200200 f6c96030 f721a400 00000000 f98a2369 c012c917
00000001 00000080 f9a1d900 e8126000 c0133979 65646172 00006e6f f72abc7c
Call Trace:
<f98a21b3> drm_cleanup+0x24/0x16f [drm] <f98a2369> drm_exit+0x6b/0xb9 [drm]
<c012c917> kthread_stop_sem+0xa1/0xb3 <c0133979>
sys_delete_module+0x13d/0x19a
<c0145513> remove_vma+0x31/0x36 <c0145ebf> do_munmap+0x16e/0x1c3
<c0102b63> sysenter_past_esp+0x54/0x75
Code: 74 20 31 c0 b9 ff ff ff ff f2 ae f7 d1 49 8b 06 e8 be 37 8b c6 c7 06 00
00 00 00 c7 46 04 00 00 00 00 8b be dc 00 00 00 83 ef 0c <8b> 47 0c 8d 4f 0c 8d
96 dc 00 00 00 89 54 24 08 39 ca 74 45 8d
EIP: [pg0+960786394/1069192192] drm_lastclose+0xb3/0x36b [drm] SS:ESP
0068:e8127f08
EIP: [<f989bfda>] drm_lastclose+0xb3/0x36b [drm] SS:ESP 0068:e8127f08
Second:
BUG: unable to handle kernel NULL pointer dereference at virtual address
00000000
printing eip:
f9884fda
*pde = 00000000
Oops: 0000 [#1]
PREEMPT SMP
Modules linked in: radeon drm usbhid
CPU: 0
EIP: 0060:[pg0+960692186/1069192192] Not tainted VLI
EIP: 0060:[<f9884fda>] Not tainted VLI
EFLAGS: 00010293 (2.6.17.11 #1)
EIP is at drm_lastclose+0xb3/0x36b [drm]
eax: 00000000 ebx: f797c800 ecx: 00000000 edx: 00000000
esi: f797c800 edi: fffffff4 ebp: 00000000 esp: f7091f08
ds: 007b es: 007b ss: 0068
Process modprobe (pid: 5742, threadinfo=f7090000 task=c1a61030)
Stack: 00000000 f7090000 00000202 f797c81c f797c800 00000000 f98a97a0 00000000
f988b1b3 00100100 00200200 c19c9070 f797c800 00000000 f988b369 c012c917
00000001 00000080 f98aa900 f7090000 c0133979 65646172 00006e6f f798fbcc
Call Trace:
<f988b1b3> drm_cleanup+0x24/0x16f [drm] <f988b369> drm_exit+0x6b/0xb9 [drm]
<c012c917> kthread_stop_sem+0xa1/0xb3 <c0133979> sys_delete_module+0x13d/0x19a
<c0145513> remove_vma+0x31/0x36 <c0145ebf> do_munmap+0x16e/0x1c3
<c0102b63> sysenter_past_esp+0x54/0x75
Code: 74 20 31 c0 b9 ff ff ff ff f2 ae f7 d1 49 8b 06 e8 be a7 8c c6 c7 06 00 00
00 00 c7 46 04 00 00 00 00 8b be dc 00 00 00 83 ef 0c <8b> 47 0c 8d 4f 0c 8d 96
dc 00 00 00 89 54 24 08 39 ca 74 45 8d
EIP: [pg0+960692186/1069192192] drm_lastclose+0xb3/0x36b [drm] SS:ESP
0068:f7091f08
EIP: [<f9884fda>] drm_lastclose+0xb3/0x36b [drm] SS:ESP 0068:f7091f08
Steps to reproduce:
On my machine, just unload the drm driver :-)
------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.
-------------------------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
--
_______________________________________________
Dri-devel mailing list
Dri-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/dri-devel
