| From: | Thomas Munro <tmunro(at)postgresql(dot)org> |
|---|---|
| To: | pgsql-committers(at)lists(dot)postgresql(dot)org |
| Subject: | pgsql: Make WL_POSTMASTER_DEATH level-triggered on kqueue builds. |
| Date: | 2020-10-14 22:43:49 |
| Message-ID: | E1kSpUr-0004Az-KN@gemulon.postgresql.org |
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| Thread: | |
| Lists: | pgsql-committers |
Make WL_POSTMASTER_DEATH level-triggered on kqueue builds.
If WaitEventSetWait() reports that the postmaster has gone away, later
calls to WaitEventSetWait() should continue to report that. Otherwise
further waits that occur in the proc_exit() path after we already
noticed the postmaster's demise could block forever.
Back-patch to 13, where the kqueue support landed.
Reported-by: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Discussion: https://postgr.es/m/3624029.1602701929%40sss.pgh.pa.us
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/b94109ce375b137f235149bfba3559c69f4573e7
Modified Files
--------------
src/backend/storage/ipc/latch.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
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