Bug 158372 - modprobe -r snd-intel8x0 oopses the kernel
Summary: modprobe -r snd-intel8x0 oopses the kernel
Keywords:
Status: CLOSED RAWHIDE
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: rawhide
Hardware: x86_64
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Dave Jones
QA Contact: Brian Brock
URL:
Whiteboard:
Depends On:
Blocks: FC4Target
TreeView+ depends on / blocked
 
Reported: 2005-05-21 02:18 UTC by Bill Nottingham
Modified: 2015-01-04 22:19 UTC (History)
3 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2005-05-23 16:29:48 UTC
Type: ---
Embargoed:

Attachments (Terms of Use)

Description Bill Nottingham 2005-05-21 02:18:40 UTC 
Description of problem:

SSIA

Version-Release number of selected component (if applicable):

2.6.11-1.1323_FC4

How reproducible:

Just happened on the box at work (remotely)

Steps to Reproduce:
1. Check sound levels with alsamixer
2. Run modprobe -r snd-intel8x0
  
Actual results:

Box hung.

Expected results:

Box responsive.
Comment 1 Dave Jones 2005-05-21 07:47:07 UTC 
no nice oops msgs ?

what chipset ?
Comment 2 Bill Nottingham 2005-05-23 04:21:35 UTC 
Did it remotely on the box at work, will get messages on Monday, hopefully. It's
E75xx.
Comment 3 Bill Nottingham 2005-05-23 15:52:50 UTC 
The trace still on the screen says:

__call_usermodehelper
posion_obj
error_exit
__change_page_attr
init_level4_pgt
flat_send_IP_allbutself
__down_write
do_flush_tlb_all
change_page_attr_addr
iounmap
:snd_intel8x0:snd_intel8x0_free
:snd:snd_device_free
:snd:snd_device_free_all
:snd:snd_card_free
:snd_intel8x0:snd_intel8x0_remove
pci_device_remove
device_release_driver
bus_remove_driver
driver_unregister
pci_unregister_driver
sys_delete_module
Comment 4 Bill Nottingham 2005-05-23 16:21:53 UTC 
OK, reproduced it. The *top* of the oops is:

Kernel BUG at "arch/x86_64/mm/pageattr.c":154
Invalid operand: 0000 [1] SMP
RIP :.... __change_page_attr+706

It hung printing the tombstone; there's no trace this time.
Comment 5 Bill Nottingham 2005-05-23 16:29:48 UTC 
Works in 1341. Woohoo!
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