[Bug testsuite/31166] New: [gdb/testsuite] FAIL: gdb.base/vfork-follow-parent.exp: resolution_method=schedule-multiple: inferior 1 (timeout)

[Bug testsuite/31166] New: [gdb/testsuite] FAIL: gdb.base/vfork-follow-parent.exp: resolution_method=schedule-multiple: inferior 1 (timeout)

[vries at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=31166

            Bug ID: 31166
           Summary: [gdb/testsuite] FAIL:
                    gdb.base/vfork-follow-parent.exp:
                    resolution_method=schedule-multiple: inferior 1
                    (timeout)
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: testsuite
          Assignee: unassigned at sourceware dot org
          Reporter: vries at gcc dot gnu.org
  Target Milestone: ---

With a 13.2 based package I run into:
...
(gdb) PASS: gdb.base/vfork-follow-parent.exp:
resolution_method=schedule-multiple: continue to end of inferior 2
inferior 1^M
[Switching to inferior 1 [process 24968]
(/home/abuild/rpmbuild/BUILD/gdb-13.2/build-x86_64-suse-linux/gdb/testsuite.unix.-m64.-fno-PIE.-no-pie/outputs/gdb.base/vfork-follow-parent/vfork-follow-parent)]^M
[Switching to thread 1.1 (Thread 0x7ffff7fbbb80 (LWP 24968))]^M
#0  0x00007ffff7cda937 in clock_nanosleep@GLIBC_2.2.5 () from
/lib64/libc.so.6^M
(gdb) Reading symbols from
/home/abuild/rpmbuild/BUILD/gdb-13.2/build-x86_64-suse-linux/gdb/testsuite.unix.-m64.-fno-PIE.-no-pie/outputs/gdb.base/vfork-follow-parent/vfork-follow-parent...^M
FAIL: gdb.base/vfork-follow-parent.exp: resolution_method=schedule-multiple:
inferior 1 (timeout)
...

I suppose this could be fixed by using -no-prompt-anchor on:
...
        gdb_test "inferior 1" ".*Switching to inferior 1.*"
...

I have not been able to reproduce this outside of OBS yet.

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[Bug testsuite/31166] [gdb/testsuite] FAIL: gdb.base/vfork-follow-parent.exp: resolution_method=schedule-multiple: inferior 1 (timeout)

[vries at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=31166

Tom de Vries <vries at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|HEAD                        |13.1

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[Bug testsuite/31166] [gdb/testsuite] FAIL: gdb.base/vfork-follow-parent.exp: resolution_method=schedule-multiple: inferior 1 (timeout)

[vries at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=31166

Tom de Vries <vries at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|13.1                        |HEAD

--- Comment #1 from Tom de Vries <vries at gcc dot gnu.org> ---
(In reply to Tom de Vries from comment #0)
> I have not been able to reproduce this outside of OBS yet.

Managed to reproduce using taskset -c 0:
...
FAIL: gdb.base/vfork-follow-parent.exp: exec_file=vfork-follow-parent-exit:
target-non-stop=on: non-stop=off: resolution_method=schedule-multiple: inferior
1 (timeout)
FAIL: gdb.base/vfork-follow-parent.exp: exec_file=vfork-follow-parent-exit:
target-non-stop=off: non-stop=off: resolution_method=schedule-multiple:
inferior 1 (timeout)
...

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[Bug testsuite/31166] [gdb/testsuite] FAIL: gdb.base/vfork-follow-parent.exp: resolution_method=schedule-multiple: inferior 1 (timeout)

[cvs-commit at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=31166

--- Comment #2 from Sourceware Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Tom de Vries <vries@sourceware.org>:

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=6ccc6caf4906036f8d5778fd5a412a199621745e

commit 6ccc6caf4906036f8d5778fd5a412a199621745e
Author: Tom de Vries <tdevries@suse.de>
Date:   Mon Jan 8 13:01:50 2024 +0100

    [gdb/testsuite] Add missing -no-prompt-anchor in
gdb.base/vfork-follow-parent.exp

    When running test-case gdb.base/vfork-follow-parent.exp it passes fine, but
    when running it with "taskset -c 0" I run into:
    ...
    (gdb) inferior 1^M
    [Switching to inferior 1 [process 26606] (vfork-follow-parent-exit)]^M
    [Switching to thread 1.1 (process 26606)]^M
    (gdb) Reading symbols from vfork-follow-parent-exit...^M
    FAIL: $exp: exec_file=vfork-follow-parent-exit: target-non-stop=on: \
      non-stop=off: resolution_method=schedule-multiple: inferior 1 (timeout)
    ...

    Fix this by using -no-prompt-anchor.

    Tested on x86_64-linux.

    PR testsuite/31166
    Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=31166

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[Bug testsuite/31166] [gdb/testsuite] FAIL: gdb.base/vfork-follow-parent.exp: resolution_method=schedule-multiple: inferior 1 (timeout)

[vries at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=31166

Tom de Vries <vries at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|NEW                         |RESOLVED
   Target Milestone|---                         |15.1

--- Comment #3 from Tom de Vries <vries at gcc dot gnu.org> ---
Fixed.

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