lkml.org 
[lkml]   [2011]   [Nov]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: intel_idle causing 3.0.8 system reboot (was: if nolapic not used then system reboots after loading first module (possibly first irq using module))
Date
On Sunday 13 of November 2011, Len Brown wrote:
> > intel_idle.max_cstate=2 also makes the problem go away.
>
> Is the system running with BIOS SETUP defaults?

Tried also with "safe defaults (F8)" but that didn't help.

> Are there any BIOS SETUP options related to CPU idle states?

Yes, there are

"C state package limit setting" with values possible: Auto, C1, C3, C6, C7
(set to "Auto" here)
"Intel EIST technology" -> Enabled
"C1E support" -> Enabled
"Intel C-STATE tech" -> Enabled
"C1 Auto Demotion" -> Enabled
"C3 Auto Demotion" -> Enabled

> please boot with intel_idle.max_cstate=0
> and send the output of these two commands:
>
> dmesg |grep idle
> grep . /sys/devices/system/cpu/cpu0/cpuidle/*/*

[root@berta ~]# dmesg |grep idle
[ 0.000000] Command line: auto BOOT_IMAGE=pld3.0.8test ro root=812
console=tty0 console=ttyS2,38400n81 panic=60 selinux=0 intel_idle.max_cstate=0
[ 0.000000] Kernel command line: auto BOOT_IMAGE=pld3.0.8test ro root=812
console=tty0 console=ttyS2,38400n81 panic=60 selinux=0 intel_idle.max_cstate=0
[ 0.000000] RCU dyntick-idle grace-period acceleration is enabled.
[ 0.278494] using mwait in idle threads.
[ 4.330321] intel_idle: disabled
[ 5.794456] cpuidle: using governor ladder
[ 5.806755] cpuidle: using governor menu
[root@berta ~]# LC_ALL=C grep . /sys/devices/system/cpu/cpu0/cpuidle/*/*
grep: /sys/devices/system/cpu/cpu0/cpuidle/*/*: No such file or directory

There are only:
[root@berta ~]# LC_ALL=C grep . /sys/devices/system/cpu/cpuidle/*
/sys/devices/system/cpu/cpuidle/current_driver:none
/sys/devices/system/cpu/cpuidle/current_governor_ro:menu

>
> thanks,
> Len Brown, Intel Open Source Technology Center
>
> >> # cat /proc/cpuinfo
> >> processor : 0
> >> vendor_id : GenuineIntel
> >> cpu family : 6
> >> model : 30
> >> model name : Intel(R) Xeon(R) CPU X3430 @ 2.40GHz
> >> stepping : 5


--
Arkadiusz Miśkiewicz PLD/Linux Team
arekm / maven.pl http://ftp.pld-linux.org/
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2011-11-13 08:57    [W:0.097 / U:0.060 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site