On 12/05/2014 01:38 AM, Linus Torvalds wrote: > On Thu, Dec 4, 2014 at 9:00 PM, Sasha Levin <sasha.le...@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..
Yes, it's going to a serial line, but it's only about 100 lines/second on average. I wouldn't expect it to cause anything to hang! Thanks, Sasha -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
