Re: Recent SIGSEGV failures in buildfarm HEAD - Mailing list pgsql-hackers

From Tom Lane
Subject Re: Recent SIGSEGV failures in buildfarm HEAD
Date
Msg-id 7154.1167319494@sss.pgh.pa.us
Whole thread Raw
In response to Re: Recent SIGSEGV failures in buildfarm HEAD  (Stefan Kaltenbrunner <stefan@kaltenbrunner.cc>)
Responses Re: Recent SIGSEGV failures in buildfarm HEAD
List pgsql-hackers
Stefan Kaltenbrunner <stefan@kaltenbrunner.cc> writes:
> Tom Lane wrote:
>> Several of the buildfarm machines are exhibiting repeatable signal 11
>> crashes in what seem perfectly ordinary queries.

> no stack trace yet however impala at least seems to be running out of
> memory (!) with 380MB of RAM and some 800MB of swap(and no other tasks)
> during the regression run. Maybe something is causing a dramatic
> increase in memory usage that is causing the random failures (in impalas
> case the OOM-killer actually decides to terminate the postmaster) ?

No, most all the failures I've looked at are sig11 not sig9.

It is interesting that the failures are not as consistent as I first
thought --- the machines that are showing failures actually fail maybe
one time in two.
        regards, tom lane


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