Re: hrtimer: interrupt took 6742 ns, then RT throttling and hung machine for nearly 2 seconds

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On 15.04.2013 14:22, Thomas Gleixner wrote:

> Yes, we decoded that problem a week ago. Patch is available here:
> 
> http://www.spinics.net/lists/linux-tip-commits/msg19100.html
> 
> It's on the way to Linus tree, so it will come via the stable updates
> to RT soon.

Hmm, this is a uniprocessor. Could this still happen via some interrupt
or something?

# cat /proc/cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 13
model name      : Intel(R) Celeron(R) M processor         1.00GHz
stepping        : 8
cpu MHz         : 999.993
cache size      : 512 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 2
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov clflush dts acpi mmx fxsr sse sse2 ss tm pbe nx bts
bogomips        : 1999.98
clflush size    : 64
cache_alignment : 64
address sizes   : 32 bits physical, 32 bits virtual
power management:


Thanks
-- 
                                              Stano

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