Messages in this thread | | | Date | Thu, 4 Dec 2014 22:38:28 -0800 | Subject | Re: frequent lockups in 3.18rc4 | From | Linus Torvalds <> |
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On Thu, Dec 4, 2014 at 9:00 PM, Sasha Levin <sasha.levin@oracle.com> wrote: > > Just to add to this: I've enabled the simplest level of verbosity in the fault > injection options, and RCU stalls are again easy to trigger:
Where do you log to?
In particular, do you have some serial line logging enabled (perhaps even without anybody listening)? Or network logging?
We've definitely had cases where logging itself is so slow that it triggers watchdogs etc. Logging to a serial line can take for*ever* in modern terms..
Linus
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