On Windows, retry process creation if we fail to reserve shared memory. We've heard occasional reports of backend launch failing because pgwin32_ReserveSharedMemoryRegion() fails, indicating that something has already used that address space in the child process. It's not very clear what, given that we disable ASLR in Windows builds, but suspicion falls on antivirus products. It'd be better if we didn't have to disable ASLR, anyway. So let's try to ameliorate the problem by retrying the process launch after such a failure, up to 100 times.
Patch by me, based on previous work by Amit Kapila and others. This is a longstanding issue, so back-patch to all supported branches. Discussion: https://postgr.es/m/caa4ek1+r6hsx6t_yvwtx+nrznevp+mrqxadgjzchcau8uij...@mail.gmail.com Branch ------ REL9_4_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/bc0f76e7ad3704cc5ed3caf7923ef0d94c2b69b1 Modified Files -------------- src/backend/postmaster/postmaster.c | 22 +++++++++++++++------- 1 file changed, 15 insertions(+), 7 deletions(-) -- Sent via pgsql-committers mailing list (pgsql-committers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-committers
