public inbox for gdb-prs@sourceware.org
help / color / mirror / Atom feed
* [Bug threads/28375] New: Cannot find user-level thread for LWP: generic error
@ 2021-09-22 12:38 vries at gcc dot gnu.org
  2024-07-29 11:52 ` [Bug threads/28375] " luis.machado at arm dot com
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: vries at gcc dot gnu.org @ 2021-09-22 12:38 UTC (permalink / raw)
  To: gdb-prs

https://sourceware.org/bugzilla/show_bug.cgi?id=28375

            Bug ID: 28375
           Summary: Cannot find user-level thread for LWP: generic error
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: threads
          Assignee: unassigned at sourceware dot org
          Reporter: vries at gcc dot gnu.org
  Target Milestone: ---

With patch:
...
diff --git a/gdb/testsuite/gdb.threads/process-dies-while-detaching.exp
b/gdb/testsuite/gdb
.threads/process-dies-while-detaching.exp
index ac1aad26ec5..3b59afb2fcf 100644
--- a/gdb/testsuite/gdb.threads/process-dies-while-detaching.exp
+++ b/gdb/testsuite/gdb.threads/process-dies-while-detaching.exp
@@ -240,6 +240,7 @@ proc test_detach_watch {multi_process cmd} {
        global binfile decimal

        clean_restart ${binfile}
+       gdb_test_no_output "set can-use-hw-watchpoints 0"

        if ![runto_main] {
            fail "can't run to main"
@@ -255,14 +256,16 @@ proc test_detach_watch {multi_process cmd} {
        }

        # Set a watchpoint in the child.
-       gdb_test "watch globalvar" ".* watchpoint $decimal: globalvar"
+       gdb_test "watch globalvar" "Watchpoint $decimal: globalvar"

        # Continue to the _exit breakpoint.  This arms the watchpoint
        # registers in all threads.  Detaching will thus need to clear
        # them out, and handle the case of the thread disappearing
        # while doing that (on targets that need to detach from each
        # thread individually).
-       continue_to_exit_bp
+       with_timeout_factor 100 {
+           continue_to_exit_bp
+       }

        do_detach $multi_process $cmd "normal"
     }
...
we run into:
...
(gdb) PASS: gdb.threads/process-dies-while-detaching.exp: single-process:
continue: watchpoint: continue to breakpoint: _exit
continue^M
Continuing.^M
Cannot find user-level thread for LWP 10324: generic error^M
(gdb) FAIL: gdb.threads/process-dies-while-detaching.exp: single-process:
continue: watchpoint: continue
...

-- 
You are receiving this mail because:
You are on the CC list for the bug.

^ permalink raw reply	[flat|nested] 4+ messages in thread

* [Bug threads/28375] Cannot find user-level thread for LWP: generic error
  2021-09-22 12:38 [Bug threads/28375] New: Cannot find user-level thread for LWP: generic error vries at gcc dot gnu.org
@ 2024-07-29 11:52 ` luis.machado at arm dot com
  2024-07-29 13:27 ` vries at gcc dot gnu.org
  2024-07-29 14:08 ` luis.machado at arm dot com
  2 siblings, 0 replies; 4+ messages in thread
From: luis.machado at arm dot com @ 2024-07-29 11:52 UTC (permalink / raw)
  To: gdb-prs

https://sourceware.org/bugzilla/show_bug.cgi?id=28375

Luis Machado <luis.machado at arm dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |luis.machado at arm dot com

--- Comment #1 from Luis Machado <luis.machado at arm dot com> ---
Is this still the case after the following commit?

https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=122373f7f25946cfc51de9e19ba1d173195f9910

Just wondering if this was within range of the problematic versions reported.
Someone ran into this today on my end (unknown versions at this point) and I
was doing some research.

-- 
You are receiving this mail because:
You are on the CC list for the bug.

^ permalink raw reply	[flat|nested] 4+ messages in thread

* [Bug threads/28375] Cannot find user-level thread for LWP: generic error
  2021-09-22 12:38 [Bug threads/28375] New: Cannot find user-level thread for LWP: generic error vries at gcc dot gnu.org
  2024-07-29 11:52 ` [Bug threads/28375] " luis.machado at arm dot com
@ 2024-07-29 13:27 ` vries at gcc dot gnu.org
  2024-07-29 14:08 ` luis.machado at arm dot com
  2 siblings, 0 replies; 4+ messages in thread
From: vries at gcc dot gnu.org @ 2024-07-29 13:27 UTC (permalink / raw)
  To: gdb-prs

https://sourceware.org/bugzilla/show_bug.cgi?id=28375

--- Comment #2 from Tom de Vries <vries at gcc dot gnu.org> ---
(In reply to Luis Machado from comment #1)
> Is this still the case after the following commit?
> 
> https://sourceware.org/git/?p=binutils-gdb.git;a=commit;
> h=122373f7f25946cfc51de9e19ba1d173195f9910
> 
> Just wondering if this was within range of the problematic versions
> reported. Someone ran into this today on my end (unknown versions at this
> point) and I was doing some research.

The KFAIL still reproduces for me with current trunk:
...
(gdb) PASS: gdb.threads/process-dies-while-detaching.exp: single-process:
continue: watchpoint:sw: watch globalvar
continue^M
Continuing.^M
Cannot find user-level thread for LWP 13033: generic error^M
(gdb) KFAIL: gdb.threads/process-dies-while-detaching.exp: single-process:
continue: watchpoint:sw: continue (PRMS: g\
db/28375)
...

-- 
You are receiving this mail because:
You are on the CC list for the bug.

^ permalink raw reply	[flat|nested] 4+ messages in thread

* [Bug threads/28375] Cannot find user-level thread for LWP: generic error
  2021-09-22 12:38 [Bug threads/28375] New: Cannot find user-level thread for LWP: generic error vries at gcc dot gnu.org
  2024-07-29 11:52 ` [Bug threads/28375] " luis.machado at arm dot com
  2024-07-29 13:27 ` vries at gcc dot gnu.org
@ 2024-07-29 14:08 ` luis.machado at arm dot com
  2 siblings, 0 replies; 4+ messages in thread
From: luis.machado at arm dot com @ 2024-07-29 14:08 UTC (permalink / raw)
  To: gdb-prs

https://sourceware.org/bugzilla/show_bug.cgi?id=28375

--- Comment #3 from Luis Machado <luis.machado at arm dot com> ---
Thanks for confirming it. Looks like we still have something off that triggers
this.

-- 
You are receiving this mail because:
You are on the CC list for the bug.

^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2024-07-29 14:08 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-09-22 12:38 [Bug threads/28375] New: Cannot find user-level thread for LWP: generic error vries at gcc dot gnu.org
2024-07-29 11:52 ` [Bug threads/28375] " luis.machado at arm dot com
2024-07-29 13:27 ` vries at gcc dot gnu.org
2024-07-29 14:08 ` luis.machado at arm dot com

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).