https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86404
Bug ID: 86404
Summary: UNSUPPORTED gcov test results due to Permission error
mapping pages
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: gcov-profile
Assignee: unassigned at gcc dot gnu.org
Reporter: msebor at gcc dot gnu.org
CC: marxin at gcc dot gnu.org
Target Milestone: ---
I've been noticing a number of unexpected UNRESOLVED results in my heavily
parallel builds (make -j96) on x86_64-linux running Fedora 25 that don't appear
in results reported on gcc-testresults:
UNRESOLVED: gcc.dg/tree-prof/20050826-2.c scan-tree-dump-times pre "Eliminated:
1" 1
UNRESOLVED: gcc.dg/tree-prof/pr66295.c scan-tree-dump-times optimized " \\* " 6
UNRESOLVED: gcc.dg/tree-prof/wcoverage-mismatch.c scan-tree-dump-times vrp1
"Folding predicate" 1
UNRESOLVED: gcc.dg/tree-prof/pr34999.c scan-tree-dump-not optimized "return 1;"
UNRESOLVED: gcc.dg/tree-prof/val-prof-1.c scan-tree-dump-not fre1 "= [dbc];"
UNRESOLVED: gcc.dg/tree-prof/switch-case-2.c scan-tree-dump-times vect
"consider run-time aliasing" 1
UNRESOLVED: gcc.dg/tree-prof/switch-case-2.c scan-tree-dump-times vect
"improved number of alias checks from 1 to 0" 1
UNRESOLVED: gcc.dg/tree-prof/switch-case-2.c scan-tree-dump-times vect "LOOP
VECTORIZED" 1
The relevant portion of the build log around some of the failures is below:
spawn create_gcov --binary
/opt/notnfs/msebor/build/gcc-86274/gcc/testsuite/gcc1/20050826-2.x01
--profile=/opt/notnfs/msebor/build/gcc-86274/gcc/testsuite/gcc1/20050826-2.perf.data
-gcov_version=1
--gcov=/opt/notnfs/msebor/build/gcc-86274/gcc/testsuite/gcc1/afdo.20050826-2.gcda
spawn of create_gcov --binary
/opt/notnfs/msebor/build/gcc-86274/gcc/testsuite/gcc1/20050826-2.x01
--profile=/opt/notnfs/msebor/build/gcc-86274/gcc/testsuite/gcc1/20050826-2.perf.data
-gcov_version=1
--gcov=/opt/notnfs/msebor/build/gcc-86274/gcc/testsuite/gcc1/afdo.20050826-2.gcda
failed
UNSUPPORTED: gcc.dg/tree-prof/20050826-2.c -fauto-profile: cannot run
create_gcov
Executing on host:
/opt/notnfs/msebor/src/gcc/86274/gcc/testsuite/../config/i386/gcc-auto-profile
true -v >/dev/null (timeout = 300)
spawn -ignore SIGHUP
/opt/notnfs/msebor/src/gcc/86274/gcc/testsuite/../config/i386/gcc-auto-profile
true -v >/dev/null
Permission error mapping pages.
Consider increasing /proc/sys/kernel/perf_event_mlock_kb,
or try again with a smaller value of -m/--mmap_pages.
(current value: 4294967295,0)
UNSUPPORTED: gcc.dg/tree-prof/bb-reorg.c -fauto-profile
Executing on host:
/opt/notnfs/msebor/src/gcc/86274/gcc/testsuite/../config/i386/gcc-auto-profile
true -v >/dev/null (timeout = 300)
spawn -ignore SIGHUP
/opt/notnfs/msebor/src/gcc/86274/gcc/testsuite/../config/i386/gcc-auto-profile
true -v >/dev/null
Permission error mapping pages.
Consider increasing /proc/sys/kernel/perf_event_mlock_kb,
or try again with a smaller value of -m/--mmap_pages.
(current value: 4294967295,0)
UNSUPPORTED: gcc.dg/tree-prof/cmpsf-1.c -fauto-profile
Executing on host:
/opt/notnfs/msebor/src/gcc/86274/gcc/testsuite/../config/i386/gcc-auto-profile
true -v >/dev/null (timeout = 300)
spawn -ignore SIGHUP
/opt/notnfs/msebor/src/gcc/86274/gcc/testsuite/../config/i386/gcc-auto-profile
true -v >/dev/null
Permission error mapping pages.
Consider increasing /proc/sys/kernel/perf_event_mlock_kb,
or try again with a smaller value of -m/--mmap_pages.
(current value: 4294967295,0)
