diff options
Diffstat (limited to 'src/backend/storage/ipc/procsignal.c')
| -rw-r--r-- | src/backend/storage/ipc/procsignal.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/backend/storage/ipc/procsignal.c b/src/backend/storage/ipc/procsignal.c index 28bcaa7e1ea..f4a3133e12c 100644 --- a/src/backend/storage/ipc/procsignal.c +++ b/src/backend/storage/ipc/procsignal.c @@ -143,6 +143,13 @@ CleanupProcSignalState(int status, Datum arg) slot = &ProcSignalSlots[pss_idx - 1]; Assert(slot == MyProcSignalSlot); + /* + * Clear MyProcSignalSlot, so that a SIGUSR1 received after this point + * won't try to access it after it's no longer ours (and perhaps even + * after we've unmapped the shared memory segment). + */ + MyProcSignalSlot = NULL; + /* sanity check */ if (slot->pss_pid != MyProcPid) { |