RE: Segmentation fault with parallelism PG 10.4

From: "Heinemann, Manfred (IMS)" <HeinemannM(at)imsweb(dot)com>
To: "Heinemann, Manfred (IMS)" <HeinemannM(at)imsweb(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: "pgsql-admin(at)lists(dot)postgresql(dot)org" <pgsql-admin(at)lists(dot)postgresql(dot)org>
Subject: RE: Segmentation fault with parallelism PG 10.4
Date: 2018-06-19 14:49:53
Message-ID: 44f8d9c203124535b497f2a79ceac59d@THALASSA.omni.imsweb.com
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Is this stack trace helpful at all?
Is there anything else I could do to investigate?

Thanks,
Manfred

>This is what I see in a stack trace
>
>Program received signal SIGSEGV, Segmentation fault.
>0x000000000084dcf3 in pglz_decompress ()
>
>>-----Original Message-----
>>From: Tom Lane [mailto:tgl(at)sss(dot)pgh(dot)pa(dot)us]
>>Sent: Tuesday, June 12, 2018 1:45 PM
>>To: Heinemann, Manfred (IMS) <HeinemannM(at)imsweb(dot)com>
>>Cc: pgsql-admin(at)lists(dot)postgresql(dot)org
>>Subject: Re: Segmentation fault with parallelism PG 10.4
>>
>>"Heinemann, Manfred (IMS)" <HeinemannM(at)imsweb(dot)com> writes:
>>> We allow some user querying against the database and a user wrote sql that would repeatedly cause a segmentation fault. We can't share the data but I will show what I can.
>>
>>The info you've provided is not of much help, but if you could show a stack trace from the point of the segfault, that might narrow things down.
>>
>>https://wiki.postgresql.org/wiki/Generating_a_stack_trace_of_a_PostgreSQL_backend
>>
>>regards, tom lane
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