From: Oleg Nesterov <oleg@redhat.com>
To: Jan Kratochvil <jan.kratochvil@redhat.com>
Cc: archer@sourceware.org
Subject: BUG? gdb, non-stop && c -a
Date: Tue, 20 Jul 2010 14:04:00 -0000 [thread overview]
Message-ID: <20100720140136.GA18643@redhat.com> (raw)
In-Reply-To: <20100720131615.GA17450@redhat.com>
On 07/20, Oleg Nesterov wrote:
>
> Using the same test-case, I did
Another oddity. Again, the same test-case but I guess any mt program
can be used.
(gdb) set non-stop
(gdb) file test1
(gdb) target extended-remote :2000
(gdb) attach 18245
(gdb) info threads
2 Thread 18245.18246 0x000000375fad65cb in read () from /lib64/libc.so.6
* 1 Thread 18245.18245 0x00000033af60e57d in pause () from /lib64/libpthread.so.0
So far everything is OK. But,
(gdb) help c
...
To continue all stopped threads in non-stop mode, use the -a option.
(gdb) c -a
Continuing.
this sends "vCont;c:p4745.4746" but not "vCont;c:p4745.-1" as I'd expect.
More, it resumes thread 2 while thread 1 is selected.
gdbserver resumes 18246 (sub-thread) correctly. Let's press ^C,
^CQuit
(gdb)
gdb sends "Hgp4745.4745, this selects the main thread 1. It was already
stopped, the sub-thread continues to run.
(gdb) c -a
Continuing.
Now it sends "vCont;c:p4745.4745" and resumes the main thread. But
now gdb doesn't react to ^C and "hangs". (no, SIGINT is not blocked).
Bug?
Oleg.
next prev parent reply other threads:[~2010-07-20 14:04 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-16 20:54 Q: mutlithreaded tracees && clone/exit Oleg Nesterov
2010-07-16 21:40 ` Roland McGrath
2010-07-18 17:51 ` Oleg Nesterov
2010-07-18 18:04 ` Oleg Nesterov
2010-07-18 20:22 ` Roland McGrath
2010-07-19 13:44 ` BUG: add_thread_silent()->switch_to_thread(minus_one_ptid) is wrong Oleg Nesterov
2010-07-19 15:36 ` Oleg Nesterov
2010-07-19 16:01 ` Q: mutlithreaded tracees && clone/exit Jan Kratochvil
2010-07-19 22:57 ` Roland McGrath
2010-07-20 13:18 ` Oleg Nesterov
2010-07-20 14:04 ` Oleg Nesterov [this message]
2010-07-20 14:12 ` BUG? gdb, non-stop && c -a Jan Kratochvil
2010-07-20 14:49 ` Oleg Nesterov
2010-07-20 15:08 ` Jan Kratochvil
2010-07-20 15:28 ` Oleg Nesterov
2010-07-20 19:43 ` Roland McGrath
2010-07-21 7:59 ` Oleg Nesterov
2010-07-21 8:10 ` Jan Kratochvil
2010-07-21 11:12 ` Oleg Nesterov
2010-07-20 14:21 ` Q: mutlithreaded tracees && clone/exit Jan Kratochvil
2010-07-20 15:09 ` Oleg Nesterov
2010-07-20 19:41 ` Roland McGrath
2010-07-21 8:32 ` Oleg Nesterov
2010-07-20 14:43 ` Q: who maintains the STOPPED/RUNNING state? Oleg Nesterov
[not found] ` <y0mk4ophmvn.fsf@fche.csb>
2010-07-21 10:20 ` Oleg Nesterov
2010-07-21 10:51 ` Oleg Nesterov
2010-07-21 17:06 ` Q: multiple inferiors, all-stop && vCont Oleg Nesterov
2010-07-21 20:42 ` Roland McGrath
2010-07-23 17:33 ` Oleg Nesterov
2010-07-26 14:30 ` Oleg Nesterov
2010-07-26 16:06 ` Oleg Nesterov
2010-07-28 18:19 ` gdbstub initial code, another approach Oleg Nesterov
2010-07-29 21:38 ` Frank Ch. Eigler
2010-07-30 13:00 ` Oleg Nesterov
2010-07-30 13:16 ` Frank Ch. Eigler
2010-07-30 15:01 ` Oleg Nesterov
2010-07-30 13:25 ` Jan Kratochvil
2010-07-30 14:44 ` Oleg Nesterov
2010-07-30 15:20 ` Jan Kratochvil
2010-08-02 12:54 ` Oleg Nesterov
2010-08-03 13:55 ` Jan Kratochvil
2010-07-30 17:59 ` Tom Tromey
2010-08-02 18:25 ` Oleg Nesterov
2010-08-02 23:54 ` Jan Kratochvil
2010-08-03 12:27 ` Q: %Stop && gdb crash Oleg Nesterov
2010-08-03 13:17 ` Oleg Nesterov
2010-08-03 19:57 ` Kevin Buettner
2010-08-04 19:42 ` Oleg Nesterov
2010-08-04 23:32 ` Kevin Buettner
2010-08-05 18:24 ` Oleg Nesterov
2010-08-03 13:36 ` Jan Kratochvil
2010-08-03 15:09 ` Oleg Nesterov
2010-08-03 12:39 ` Q: multiple inferiors, all-stop && vCont Jan Kratochvil
2010-08-03 14:32 ` Oleg Nesterov
2010-08-03 15:55 ` Jan Kratochvil
2010-08-03 16:56 ` Oleg Nesterov
2010-08-03 18:37 ` Jan Kratochvil
2010-08-18 17:07 ` Jan Kratochvil
2010-08-18 19:22 ` Roland McGrath
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