1berry/postgres
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Trust signalfd on illumos, again.

Browse Source 
Commit 3ab4fc5d avoided choosing signalfd by default on illumos, because
it triggered kernel panics.  That was fixed, so we can remove a kludge
from our code.  Users/packagers can still override the default choice at
compile time if desired, and we'll leave the back-branches unchanged so
they keep choosing self-pipe by default, but we'll default to signalfd
(like we do for Linux) in 17.  Fixed kernels should be everywhere by the
time 17 ships.

The illumos issues were:

 * https://www.illumos.org/issues/13700
 * https://www.illumos.org/issues/14892

Discussion: https://postgr.es/m/CA+hUKG+NK-K_G_i1H3OpDTwYPEsiwQi_jw58PGcW2H+-N2eVCA@mail.gmail.com
This commit is contained in:
Thomas Munro 2023-07-02 15:23:28 +12:00
parent 01d56eecee
commit 4f49b3f849
1 changed files with 2 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
src/backend/storage/ipc/latch.c
View File

@ -86,14 +86,12 @@
/*
* By default, we use a self-pipe with poll() and a signalfd with epoll(), if
* available. We avoid signalfd on illumos for now based on problem reports.
* For testing the choice can also be manually specified.
* available. For testing the choice can also be manually specified.
*/
#if defined(WAIT_USE_POLL) || defined(WAIT_USE_EPOLL)
#if defined(WAIT_USE_SELF_PIPE) || defined(WAIT_USE_SIGNALFD)
/* don't overwrite manual choice */
#elif defined(WAIT_USE_EPOLL) && defined(HAVE_SYS_SIGNALFD_H) && \
!defined(__illumos__)
#elif defined(WAIT_USE_EPOLL) && defined(HAVE_SYS_SIGNALFD_H)
#define WAIT_USE_SIGNALFD
#else
#define WAIT_USE_SELF_PIPE