Re: frequent lockups in 3.18rc4

From: Sasha Levin
Date: Mon Dec 08 2014 - 10:29:13 EST

On 12/08/2014 09:33 AM, Sasha Levin wrote:
> On 12/08/2014 12:20 AM, Paul E. McKenney wrote:
>> > I have seen this caused by lost IPIs, but you have to lose two of them,
>> > which seems less than fully likely.
> It does seem that it can cause full blown stalls as well, just pretty
> rarely (notice the lack of any prints before):

Forgot to mentioned, I cranked the rcu lockup timeout to 300 seconds and got
that stall.

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