Re: [PATCH] disable softlockup detection at boottime


* Dimitri Sivanich <sivanich@xxxxxxx> wrote:

On Mon, Apr 28, 2008 at 06:55:44PM +0200, Ingo Molnar wrote:

good idea - but why dont you set softlockup_thresh to 0, which is the
"off" switch already? (and that way it can be turned back on later as
well, by the sysadmin.)


I'm getting unaligned access errors trying to set it to anything, so
it's not working for me currently (2.6.25):

It's tripping up on the address of 'one', which is an int that is not
properly aligned for the unsigned long comparison in
proc_doulongvec_minmax on my 64 bit machine. Also, the value '0' is
invalid for softlockup_thresh, correct?

I temporarily got around these issues with the following hack.

ah, sorry. But ... perhaps using threshold -1 would be the most
intuitive setting? (for 'infinite timeout' ==> softlockup detector
turned off) That way it all becomes configurable as part of the
threshold? No strong opinion though.

Ingo
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