[Bug testsuite/29669] New: [gdb/testsuite] silent timeout with host board local-remote-host-notty

[Bug testsuite/29669] New: [gdb/testsuite] silent timeout with host board local-remote-host-notty

[vries at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=29669

            Bug ID: 29669
           Summary: [gdb/testsuite] silent timeout with host board
                    local-remote-host-notty
           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: ---

I tried to run the gdb testsuite, test-cases gdb.server/*.exp using host board
local-remote-host-notty and noticed in the first test-case
gdb.server/stop-reply-no-thread-multi.exp a silent timeout on:
...
(gdb) kill^M
(gdb) The program is not being run.^M
...

I can reproduce this standalone using this command, which usually produces the
expected:
...
$ /usr/bin/ssh -l vries 127.0.0.1 ~/gdb_versions/devel/gdb.sh -ex \"maint set
target-non-stop off\" -ex kill 
The program is not being run.
(gdb) q
$
...

But sometimes:
...
$ /usr/bin/ssh -l vries 127.0.0.1 ~/gdb_versions/devel/gdb.sh -ex \"maint set
target-non-stop off\" -ex kill 
(gdb) The program is not being run.
q
$
...

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[Bug testsuite/29669] [gdb/testsuite] silent timeout with host board local-remote-host-notty

[vries at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=29669

--- Comment #1 from Tom de Vries <vries at gcc dot gnu.org> ---
Now also reproduced without -ex \"maint set target-non-stop off\".

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[Bug testsuite/29669] [gdb/testsuite] silent timeout with host board local-remote-host-notty

[vries at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=29669

--- Comment #2 from Tom de Vries <vries at gcc dot gnu.org> ---
hmm, this sounds a lot like
https://stackoverflow.com/questions/63238934/problems-with-ssh-buffering-of-stderr-without-tt

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[Bug testsuite/29669] [gdb/testsuite] silent timeout with host board local-remote-host-notty

[vries at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=29669

--- Comment #3 from Tom de Vries <vries at gcc dot gnu.org> ---
I think we should use ssh -t, like local-remote-host.

The only mentioned difference between the two seems to be that editing is on in
local-remote-host and off in local-remote-host-notty, and we can achieve this
by adding -iex "set editing off" to GDBFLAGS.

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[Bug testsuite/29669] [gdb/testsuite] silent timeout with host board local-remote-host-notty

[vries at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=29669

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED
   Target Milestone|---                         |13.1

--- Comment #4 from Tom de Vries <vries at gcc dot gnu.org> ---
https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=c4c8c27263d2dd25647314f4897bd01ad1a78847

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