[Bug testsuite/31633] New: [gdb/testsuite] FAIL: gdb.server/server-kill-python.exp: ensure inferior is running

["vries at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=31633

            Bug ID: 31633
           Summary: [gdb/testsuite] FAIL:
                    gdb.server/server-kill-python.exp: ensure inferior is
                    running
           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: ---

While looking into PR31632, I did the following experiment.

In the sources:
...
$ cd gdb/testsuite
$ mkdir backup
$ mv gdb.*/backup
$ mv backup/gdb.server backup/gdb.xml .
...

In the build dir:
...
$ make -j 16 \
  check//unix/-m64 \
  check//unix/-m64/-fPIE/-pie\
  check//unix/-m32 \
  check//unix/-m32/-fPIE/-pie
...

I reproducibly run into a FAIL in gdb.server/server-kill-python:
...
$ grep ^FAIL: build/gdb/testsuite.*/gdb.sum
build/gdb/testsuite.unix.-m32.-fPIE.-pie/gdb.sum:FAIL:
gdb.server/server-kill-python.exp: ensure inferior is running
build/gdb/testsuite.unix.-m32/gdb.sum:FAIL: gdb.server/server-kill-python.exp:
ensure inferior is running
...

In more detail:
...
spawn
/data/vries/gdb/leap-15-5/build/gdb/testsuite.unix.-m32/../../gdb/gdbserver/gdbserver
--once localhost:2346
/data/vries/gdb/leap-15-5/build/gdb/testsuite.unix.-m32/outputs/gdb.server/server-kill-python/server-kill-python^M
Process
/data/vries/gdb/leap-15-5/build/gdb/testsuite.unix.-m32/outputs/gdb.server/server-kill-python/server-kill-python
created; pid = 3817^M
Listening on port 2346^M
spawn /data/vries/gdb/leap-15-5/build/gdb/testsuite.unix.-m32/../../gdb/gdb -nw
-nx -data-directory
/data/vries/gdb/leap-15-5/build/gdb/testsuite.unix.-m32/../data-directory
-quiet -iex set height 0 -iex set width 0 -ex source
/data/vries/gdb/leap-15-5/build/gdb/testsuite.unix.-m32/outputs/gdb.server/server-kill-python/file1.py^M
Remote debugging from host ::1, port 38736^M
FAIL: gdb.server/server-kill-python.exp: ensure inferior is running
...

I.m able to reproduce this with plain target board unix/-m32 at the originating
commit.

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