Bug 91981 - OOPS ipw2100_down+0x8f/0x200 on every reboot/shutdown
Summary: OOPS ipw2100_down+0x8f/0x200 on every reboot/shutdown
Status: NEW
Alias: None
Product: Drivers
Classification: Unclassified
Component: network-wireless (show other bugs)
Hardware: i386 Linux
: P1 high
Assignee: drivers_network-wireless@kernel-bugs.osdl.org
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2015-01-24 21:26 UTC by Chris Murphy
Modified: 2015-01-24 21:26 UTC (History)
0 users

See Also:
Kernel Version: 3.19.0-0.rc5.git2.1.fc22.i686
Subsystem:
Regression: Yes
Bisected commit-id:

Attachments
dmesg (75.55 KB, text/plain)
2015-01-24 21:26 UTC, Chris Murphy 		Details
Add an attachment (proposed patch, testcase, etc.)

Description Chris Murphy 2015-01-24 21:26:41 UTC 
Created attachment 164581 [details]
dmesg

On each reboot or shutdown, there is an oops. This is a regression from rc4 on which this problem did not occur.

The first problem appears to occur well before the restart and oops.

[   14.788643] WARNING: CPU: 0 PID: 306 at lib/dma-debug.c:1153 check_unmap+0x4e6/0x9b0()
[   14.788647] ipw2100 0000:02:03.0: DMA-API: device driver failed to check map error


And then the oops on reboot


[  137.024547] BUG: unable to handle kernel paging request at 00001398
[  137.024639] IP: [<f7df573f>] ipw2100_down+0x8f/0x200 [ipw2100]
[  137.024717] *pde = 00000000 
[  137.024760] Oops: 0000 [#1] SMP 
[  137.024812] Modules linked in: ##snipped
[  137.025524] CPU: 0 PID: 809 Comm: reboot Tainted: G        W      3.19.0-0.rc5.git2.1.fc22.i686 #1
[  137.025524] Hardware name: Dell Computer Corporation Latitude D600                   /0G5152, BIOS A16 06/29/2005
[  137.025524] task: f0376d80 ti: ee90c000 task.ti: ee90c000
[  137.025524] EIP: 0060:[<f7df573f>] EFLAGS: 00010002 CPU: 0
[  137.025524] EIP is at ipw2100_down+0x8f/0x200 [ipw2100]
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