Bug 50771 - Disabling NMI watchdog make asus ux31a hangs on reboot
Summary: Disabling NMI watchdog make asus ux31a hangs on reboot
Status: CLOSED INSUFFICIENT_DATA
Alias: None
Product: ACPI
Classification: Unclassified
Component: Power-Off (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: acpi_power-off
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2012-11-20 07:27 UTC by wolfram
Modified: 2013-08-06 08:55 UTC (History)
6 users (show)

See Also:
Kernel Version: 3.7rc6
Subsystem:
Regression: No
Bisected commit-id:

Attachments
lspci output (18.25 KB, text/plain)
2012-11-20 07:27 UTC, wolfram 		Details
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Description wolfram 2012-11-20 07:27:13 UTC 
Created attachment 86681 [details]
lspci output

I've ASUS UX31A unit. Intel's powertop advices to disable NMI watchdog to improve power consumption. 

But disabling of it makes kernel hanging during system reboot/shutdown when openrc tries to "remount / as readonly"
Comment 1 Len Brown 2013-01-29 03:55:38 UTC 
What distro are you running?
Ubuntu uses kexec for reboot, which can be problematic.
Comment 2 wolfram 2013-01-29 05:17:16 UTC 
Gentoo with gentoo-sources kernel built with genkernel.
Comment 3 Lan Tianyu 2013-06-09 14:09:32 UTC 
hi, Could you check whether the bug exist in the v3.10-rc4 and provide some logs during hang?
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