Re: [sqlsmith] Parallel worker executor crash on master

2017-12-17 Thread Thomas Munro
On Sun, Dec 17, 2017 at 12:26 PM, Andreas Seltenreich wrote: > Thomas Munro writes: > >> On Sat, Dec 16, 2017 at 10:13 PM, Andreas Seltenreich >> wrote: >>> Core was generated by `postgres: smith regression [local] SELECT >>> '. >>> Program terminated with signal SIGSEGV,

Re: [sqlsmith] Parallel worker executor crash on master

2017-12-16 Thread Andreas Seltenreich
Thomas Munro writes: > On Sat, Dec 16, 2017 at 10:13 PM, Andreas Seltenreich > wrote: >> Core was generated by `postgres: smith regression [local] SELECT >>'. >> Program terminated with signal SIGSEGV, Segmentation fault. >> #0 gather_getnext (gatherstate=0x555a5fff1350)

Re: [sqlsmith] Parallel worker executor crash on master

2017-12-16 Thread Thomas Munro
On Sat, Dec 16, 2017 at 10:13 PM, Andreas Seltenreich wrote: > Amit Kapila writes: > >> This seems to be another symptom of the problem related to >> es_query_dsa for which Thomas has sent a patch on a different thread >> [1]. After applying that patch, I am not able to see the problem. I >> thi

Re: [sqlsmith] Parallel worker executor crash on master

2017-12-16 Thread Andreas Seltenreich
Amit Kapila writes: > This seems to be another symptom of the problem related to > es_query_dsa for which Thomas has sent a patch on a different thread > [1]. After applying that patch, I am not able to see the problem. I > think due to the wrong usage of dsa across nodes, it can lead to > sendi

Re: [sqlsmith] Parallel worker executor crash on master

2017-12-15 Thread Amit Kapila
On Sat, Dec 16, 2017 at 12:57 AM, Andreas Seltenreich wrote: > Hi, > > sqlsmith just crashed a parallel worker while testing master at > 699bf7d05c. I can reproduce it with the following recipe on a fresh > regression database. Backtrace and query plan below as well. > This seems to be another

[sqlsmith] Parallel worker executor crash on master

2017-12-15 Thread Andreas Seltenreich
Hi, sqlsmith just crashed a parallel worker while testing master at 699bf7d05c. I can reproduce it with the following recipe on a fresh regression database. Backtrace and query plan below as well. regards, Andreas --8<---cut here---start->8--- set min_parall