[Bug testsuite/113238] New: [14] RISC-V: gcc.dg vect-tsvc flakey test timeouts when under heavy workload

[Bug testsuite/113238] New: [14] RISC-V: gcc.dg vect-tsvc flakey test timeouts when under heavy workload

[ewlu at rivosinc dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113238

            Bug ID: 113238
           Summary: [14] RISC-V: gcc.dg vect-tsvc flakey test timeouts
                    when under heavy workload
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: testsuite
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ewlu at rivosinc dot com
  Target Milestone: ---

The following tests are flakey on our post-commit ci
https://github.com/patrick-rivos/gcc-postcommit-ci/ for various vector targets. 

FAIL: gcc.dg/vect/tsvc/vect-tsvc-vpv.c 
FAIL: gcc.dg/vect/tsvc/vect-tsvc-vtv.c
FAIL: gcc.dg/vect/tsvc/vect-tsvc-s176.c
FAIL: gcc.dg/vect/tsvc/vect-tsvc-s351.c
FAIL: gcc.dg/vect/tsvc/vect-tsvc-s431.c
FAIL: gcc.dg/vect/tsvc/vect-tsvc-s1281.c


The test FAIL: gcc.dg/vect/tsvc/vect-tsvc-s1351.c might also be flakey as it
appeared several times but not as frequently as the rest.

[Bug testsuite/113238] [14] RISC-V: gcc.dg vect-tsvc flakey test timeouts when under heavy workload

[ewlu at rivosinc dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113238

--- Comment #1 from Edwin Lu <ewlu at rivosinc dot com> ---
Debug log for one of the flakey tests

spawn -ignore SIGHUP
/github/patrick-postcommit-runner-2/_work/gcc-postcommit-ci/gcc-postcommit-ci/riscv-gnu-toolchain/build/build-gcc-linux-stage2/gcc/xgcc
-B/github/patrick-postcommit-runner-2/_work/gcc-postcommit-ci/gcc-postcommit-ci/riscv-gnu-toolchain/build/build-gcc-linux-stage2/gcc/
/github/patrick-postcommit-runner-2/_work/gcc-postcommit-ci/gcc-postcommit-ci/riscv-gnu-toolchain/gcc/gcc/testsuite/gcc.dg/vect/tsvc/vect-tsvc-s351.c
-march=rv64gcv -mabi=lp64d -mtune=rocket -mcmodel=medlow
-fdiagnostics-plain-output -flto -ffat-lto-objects --param riscv-vector-abi
-ftree-vectorize -fno-tree-loop-distribute-patterns -fno-vect-cost-model
-fno-common -O2 -fdump-tree-vect-details --param vect-epilogues-nomask=0 -lm -o
./vect-tsvc-s351.exe
PASS: gcc.dg/vect/tsvc/vect-tsvc-s351.c -flto -ffat-lto-objects (test for
excess errors)
spawn riscv64-unknown-linux-gnu-run ./vect-tsvc-s351.exe
WARNING: program timed out.
FAIL: gcc.dg/vect/tsvc/vect-tsvc-s351.c -flto -ffat-lto-objects execution test

[Bug testsuite/113238] [14] RISC-V: gcc.dg vect-tsvc flakey test timeouts when under heavy workload

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113238

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pinskia at gcc dot gnu.org

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I see PR 112890 was already linked and yes I see some of these are failing some
of the time but those runs are with qemu and I have not seen them fail on real
HW yet though.