Hi Gustaf,
The crashes we are seeing are not during shutdown, but during normal server
operation which is why we are concerned about them. The system recovers
quickly due to daemontools, but the scheduled tasks running at the time of
the crash are aborted.
There is nothing in the syslog to indicate a memory problem or oom killer
being invoked.
As for a Tcl bug, we might potentially be able to upgrade the version of
Tcl use to 8.5.17 from the Debian testing distribution (currently we use
8.5.11). But I wouldn't like to do that on the production system unless
there was very good reason.
Do you know more about the Tcl bug that caused your last crash?
On 26 March 2015 at 11:18, Gustaf Neumann <neum...@wu.ac.at> wrote:
> Hi David,
>
> We have this issue of shutdown in test-cases and during server shutdown
> since
> several years. It is annoying, but mostly harmless. The last time i looked
> into
> the problem, i got the impression that it depends on a not fully
> predictable
> shutdown order, which is not completely in our hands due to tcl
> interactions.
>
> i would be alert, if you see this problem in other situations. For our
> production
> system, i saw the last crash months ago (happend due to a Tcl-bug with
> doubling the size of a dstring over 2gb). Another "crash" on a different
> system
> turned out to be due to linux's oom killer.
>
> -g
>
>
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