Re: Random server crashes every few weeks (smp_invltlb: endless loop […] retrysmp_invltlb: ipi sent)

[Matthew Dillon]

On this issue, we've made a bunch of fixes in just the last few days, you
will definitely want to update to the latest master.  Things are looking a
lot more stable now.  We are continuing to life test three server
configurations this week to locate any remaining low-hanging fruit.

-Matt

On Mon, Jul 18, 2016 at 1:34 AM, Stefan Unterweger <
232.20711 at chiffre.aleturo.com> wrote:

> * Matthew Dillon on Sun, Jul 17, 2016 at 10:21:04AM -0700:
> > The smp_invltlb() issue should hopefully be fixed in the latest master
> but
> > the code has not been well-tested yet.
> >
> > The cause of the original issue you reported is not entirely known (its
> an
> > issue with one of the other cpu cores, not the one that generated the
> > message and backtrace), but it is usually able to self-recover from it.
> > The new code should work a lot better.
> >
> > -Matt
>
> Right now I’m running edca023af (plus or minus two commits) and at least
> it feels as if there are already some slight improvements there.
> Before, with the release kernel, after such a backtrace parts of the
> network stack would just stop responding with just pings going through.
> Now, I at least get a day’s worth of forewarning.
>
> I’ll try out the latest master as soon as I can get the downtime
> scheduled.  Thanks yet again for all the work you are doing for this
> weird problem, it is very much appreciated. :o)
>
>
>     Stefan
>
>
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