| From: | Michael Paquier <michael(at)paquier(dot)xyz> |
|---|---|
| To: | Thomas Munro <thomas(dot)munro(at)gmail(dot)com> |
| Cc: | Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com>, tgl(at)sss(dot)pgh(dot)pa(dot)us, pg(at)bowt(dot)ie, pgsql-hackers(at)lists(dot)postgresql(dot)org, craig(dot)ringer(at)enterprisedb(dot)com, robertmhaas(at)gmail(dot)com |
| Subject: | Re: 011_crash_recovery.pl intermittently fails |
| Date: | 2023-01-25 00:02:46 |
| Message-ID: | Y9BxphkLcwxKT5W/@paquier.xyz |
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| Lists: | pgsql-hackers |
On Wed, Jan 25, 2023 at 12:40:02PM +1300, Thomas Munro wrote:
> I remembered this thread after seeing the failure of Michael's new
> build farm animal "tanager". I think we need to solve this somehow...
Well, this host has a problem, for what looks like a kernel issue, I
guess.. This is repeatable across all the branches, randomly, with
various errors with the POSIX DSM implementation:
# [63cf68b7.5e5a:1] ERROR: could not open shared memory segment "/PostgreSQL.543738922": No such file or directory
# [63cf68b7.5e58:6] ERROR: could not open shared memory segment "/PostgreSQL.543738922": No such file or directory
https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=tanager&dt=2023-01-24%2004%3A23%3A53
dynamic_shared_memory_type should be using posix in this case.
Switching to mmap may help, perhaps.. I need to test it.
Anyway, sorry for the noise on this one.
--
Michael
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