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Merge branch '3051-missing-destroy-for-pthread-primitives' into 'main'

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Stop leaking mutex in nmworker and cond in nm socket

Closes #3051

See merge request isc-projects/bind9!5622
This commit is contained in:
Ondřej Surý 2021-12-08 17:17:17 +00:00
commit 0059433106
3 changed files with 10 additions and 1 deletions
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4
CHANGES
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@ -1,3 +1,7 @@
5776. [bug] Add a missing isc_condition_destroy() for nmsocket
condition variable and add missing isc_mutex_destroy()
for nmworker lock. [GL #3051]
5775. [bug] Added a timer in the resolver to kill fetches that
have deadlocked as a result of dependency loops
with the ADB or the validator. This condition is

3
doc/notes/notes-current.rst
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@ -79,3 +79,6 @@ Bug Fixes
- The resolver could hang on shutdown due to dispatch resources not being
cleaned up when a TCP connection was reset. This has been fixed. :gl:`#3026`
- On FreeBSD, a TCP connection would leak a small amount of heap memory leading
to out-of-memory problem in a long run. This has been fixed. :gl:`#3051`

4
lib/isc/netmgr/netmgr.c
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@ -379,6 +379,7 @@ nm_destroy(isc_nm_t **mgr0) {
isc_mem_put(mgr->mctx, ievent, sizeof(*ievent));
}
isc_condition_destroy(&worker->cond_prio);
isc_mutex_destroy(&worker->lock);
r = uv_loop_close(&worker->loop);
INSIST(r == 0);
@ -1271,8 +1272,9 @@ nmsocket_cleanup(isc_nmsocket_t *sock, bool dofree FLARG) {
sock->ah_size * sizeof(sock->ah_frees[0]));
isc_mem_put(sock->mgr->mctx, sock->ah_handles,
sock->ah_size * sizeof(sock->ah_handles[0]));
isc_mutex_destroy(&sock->lock);
isc_condition_destroy(&sock->scond);
isc_condition_destroy(&sock->cond);
isc_mutex_destroy(&sock->lock);
#if HAVE_LIBNGHTTP2
isc__nm_tls_cleanup_data(sock);
isc__nm_http_cleanup_data(sock);