The test did fail when the virtual memory already had a hard limit != unlimited.
Committed as r12-57-gfaf7d413a3f3337be1a3ac5cdf33e0e3b87b426e Tobias ----------------- Mentor Graphics (Deutschland) GmbH, Arnulfstrasse 201, 80634 München Registergericht München HRB 106955, Geschäftsführer: Thomas Heurung, Frank Thürauf
commit faf7d413a3f3337be1a3ac5cdf33e0e3b87b426e Author: Tobias Burnus <tob...@codesourcery.com> Date: Thu Apr 22 11:05:17 2021 +0200 gfortran.dg/pr68078.f90: Avoid increasing RLIMIT_AS pr68078.f90 tests out-of-memory handling and calls set_vm_limit to set the soft limit. However, setrlimit was then called with hard limit RLIM_INFINITY, which failed when the current hard limit was lower. gcc/testsuite/ * gfortran.dg/set_vm_limit.c (set_vm_limit): Call getrlimit, use obtained hard limit, and only call setrlimit if new softlimit is lower. diff --git a/gcc/testsuite/gfortran.dg/set_vm_limit.c b/gcc/testsuite/gfortran.dg/set_vm_limit.c index 30c4b43e0ed..8344f6fd079 100644 --- a/gcc/testsuite/gfortran.dg/set_vm_limit.c +++ b/gcc/testsuite/gfortran.dg/set_vm_limit.c @@ -8,9 +8,20 @@ void set_vm_limit (int vm_limit) { - struct rlimit rl = { vm_limit, RLIM_INFINITY }; + struct rlimit rl; int r; + r = getrlimit (RLIMIT_AS, &rl); + if (r) + { + perror ("get_vm_limit"); + exit (1); + } + + if (vm_limit >= rl.rlim_cur) + return; + + rl.rlim_cur = vm_limit; r = setrlimit (RLIMIT_AS, &rl); if (r) {