[vdr] PANIC: watchdog timer expired - exiting

Anssi Hannula anssi.hannula at gmail.com
Mon Dec 3 15:05:10 CET 2007


Ville Skyttä wrote:
> On Sunday 02 December 2007, Darren Salt wrote:
>> I demand that Klaus Schmidinger may or may not have written...
>>
>>> On 12/02/07 14:34, Darren Salt wrote:
>>>> I demand that Klaus Schmidinger may or may not have written...
>>> I'll make it a 5 ms limit then, to allow default kernels to work.
>> Valid HZ options are 100, 250, 300 and 1000, unless overridden by an
>> arch-specific Kconfig file. (AFAICS, only mips does this, offering 48, 100,
>> 128, 250, 256, 1000 and 1024.)
> 
> Not that I really know much at all about this, but how would this change 
> behave with NOHZ kernels?

Apparently resolution is reported as 1 ns regardless of HZ when NO_HZ is 
used:

$ ./hz
cTimeMs: using monotonic clock (resolution is 1 ns)
$ zcat /proc/config.gz | grep "_HZ="
CONFIG_NO_HZ=y
CONFIG_HZ=100

-- 
Anssi Hannula



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