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authorThomas Munro <tmunro@postgresql.org>2023-07-02 15:23:28 +1200
committerThomas Munro <tmunro@postgresql.org>2023-07-02 15:28:48 +1200
commit4f49b3f8497d5c8c3cc06eb32942c13b8ee7209e (patch)
tree708c78b97463d9a6ef1291d39f7ebb0cd8d6f435
parent01d56eecee4cfa0f796c4ee3e2e0ac615b9350bb (diff)
Trust signalfd on illumos, again.
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
-rw-r--r--src/backend/storage/ipc/latch.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/src/backend/storage/ipc/latch.c b/src/backend/storage/ipc/latch.c
index cdb95c1931a..db889385b77 100644
--- a/src/backend/storage/ipc/latch.c
+++ b/src/backend/storage/ipc/latch.c
@@ -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