Bug 110751

Summary: asus_laptop module causes kernel panic if built-in, and faults if used as module
Product: Drivers Reporter: Derk te Bokkel (derk.tebokkel)
Component: Platform_x86Assignee: drivers_platform_x86 (drivers_platform_x86)
Status: NEW ---    
Severity: normal CC: derk.tebokkel, dz1125.bug.tracker, htd, htd, tero.roponen
Priority: P1    
Hardware: All   
OS: Linux   
Kernel Version: 4.4.0 Subsystem:
Regression: No Bisected commit-id:
Attachments: dmesg using asus_laptop as module

Description Derk te Bokkel 2016-01-13 11:05:24 UTC
Created attachment 199501 [details]
dmesg using asus_laptop as module

after upgrading from kernel 4.3.3 to 4.4.0 had kernel panic issues

Previous versions of kernel (4.3.3 and earlier) with  asus_laptop and i915 built-in had no known issues

required loading i915 as module to trouble shoot .. on lenova SL500 .. 
discovered kernel panic could be mitigated by building asus_laptop as a module


have attached dmesg

determined that asus_laptop module now errors .. but will boot asus_laptop is a module .. of course  functions managed by this module .. e.g. laptop lid switch no longer function properly
Comment 1 Tero Roponen 2016-01-14 15:23:41 UTC
I have the same problem. The patch at https://patchwork.ozlabs.org/patch/552082/ fixes it for me.
Comment 2 Derk te Bokkel 2016-01-14 17:38:34 UTC
yes patching kernel source for 4.4.0 fixes the issue for me as well ..
how soon will this be applied to kernel sources?
Comment 3 dz1125.bug.tracker 2016-01-17 10:53:51 UTC
Related:https://bbs.archlinux.org/viewtopic.php?id=207658
Comment 4 dz1125.bug.tracker 2016-01-20 00:14:37 UTC
@Derk te Bokkel
Please see: https://lkml.org/lkml/2016/1/19/511
Comment 5 Heinz Diehl 2016-01-25 16:03:24 UTC
The same problem here, with an Asus U45JC laptop. Affecting both linux-4.4.0 and 4.5-rc1. 4.3 and below are fine.