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* [Bug threads/10227] GDB resumes inferior unexpectedly when receiving ignored signal; step/next behave as continue
[not found] <bug-10227-4717@http.sourceware.org/bugzilla/>
@ 2012-07-04 17:02 ` palves at redhat dot com
2012-10-24 15:54 ` palves at redhat dot com
2012-10-24 16:02 ` ppluzhnikov at google dot com
2 siblings, 0 replies; 4+ messages in thread
From: palves at redhat dot com @ 2012-07-04 17:02 UTC (permalink / raw)
To: gdb-prs
http://sourceware.org/bugzilla/show_bug.cgi?id=10227
Pedro Alves <palves at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |WAITING
Last reconfirmed| |2012-07-04
CC| |palves at redhat dot com
Target Milestone|6.8 |7.5
Ever Confirmed|0 |1
--- Comment #2 from Pedro Alves <palves at redhat dot com> 2012-07-04 17:02:24 UTC ---
Hi Paul,
This recent patch should have fixed this:
2012-06-28 Jan Kratochvil <jan.kratochvil@redhat.com>
Pedro Alves <palves@redhat.com>
* gdbthread.h (ALL_THREADS): New macro.
(thread_list): Declare.
* infrun.c (handle_inferior_event) <spurious signal>: Don't keep
going, but instead fall through to the stepping handling.
* linux-nat.c (resume_lwp): New parameter 'signo'. Resume with
the passed in signal. Adjust debug output.
(resume_callback): Rename to ...
(linux_nat_resume_callback): ... this. Pass the thread's last
stop signal, if in "pass" state.
(linux_nat_resume): Adjust to rename.
(stop_wait_callback): New assertion. Don't respawn signals;
instead let the LWP remain with SIGNALLED set.
(linux_nat_wait_1): Remove flushing of pending SIGSTOPs.
* remote.c (append_pending_thread_resumptions): New.
(remote_vcont_resume): Call it.
* target.h (target_resume): Extend comment.
I tried both your tests with current mainline, and didn't see anything wrong.
I checkout a gdb from just before that patch, and tries your first test, and
indeed it broke.
Can you confirm?
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* [Bug threads/10227] GDB resumes inferior unexpectedly when receiving ignored signal; step/next behave as continue
[not found] <bug-10227-4717@http.sourceware.org/bugzilla/>
2012-07-04 17:02 ` [Bug threads/10227] GDB resumes inferior unexpectedly when receiving ignored signal; step/next behave as continue palves at redhat dot com
@ 2012-10-24 15:54 ` palves at redhat dot com
2012-10-24 16:02 ` ppluzhnikov at google dot com
2 siblings, 0 replies; 4+ messages in thread
From: palves at redhat dot com @ 2012-10-24 15:54 UTC (permalink / raw)
To: gdb-prs
http://sourceware.org/bugzilla/show_bug.cgi?id=10227
Pedro Alves <palves at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |RESOLVED
Resolution| |FIXED
--- Comment #3 from Pedro Alves <palves at redhat dot com> 2012-10-24 15:54:38 UTC ---
Paul, I'm quite confident the issue is now fixed, so I'm closing it.
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* [Bug threads/10227] GDB resumes inferior unexpectedly when receiving ignored signal; step/next behave as continue
[not found] <bug-10227-4717@http.sourceware.org/bugzilla/>
2012-07-04 17:02 ` [Bug threads/10227] GDB resumes inferior unexpectedly when receiving ignored signal; step/next behave as continue palves at redhat dot com
2012-10-24 15:54 ` palves at redhat dot com
@ 2012-10-24 16:02 ` ppluzhnikov at google dot com
2 siblings, 0 replies; 4+ messages in thread
From: ppluzhnikov at google dot com @ 2012-10-24 16:02 UTC (permalink / raw)
To: gdb-prs
http://sourceware.org/bugzilla/show_bug.cgi?id=10227
Paul Pluzhnikov <ppluzhnikov at google dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |VERIFIED
--- Comment #4 from Paul Pluzhnikov <ppluzhnikov at google dot com> 2012-10-24 16:02:31 UTC ---
Manually confirmed fix on the original test case.
Thanks!
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* [Bug threads/10227] GDB resumes inferior unexpectedly when receiving ignored signal; step/next behave as continue
2009-06-02 6:15 [Bug threads/10227] New: " ppluzhnikov at google dot com
@ 2009-06-02 6:36 ` ppluzhnikov at google dot com
0 siblings, 0 replies; 4+ messages in thread
From: ppluzhnikov at google dot com @ 2009-06-02 6:36 UTC (permalink / raw)
To: gdb-prs
------- Additional Comments From ppluzhnikov at google dot com 2009-06-02 06:36 -------
Smaller/simpler test case:
/* compile with "gcc -pthread -g t.c"
* Test program generates an endless stream of SIGPIPE in second thread. */
#include <unistd.h>
#include <signal.h>
#include <pthread.h>
void *fn(void *p)
{
int fd = *(int*)p;
while (1) {
int x = 1;
x++;
x++;
write(fd, &x, sizeof(x));
}
}
int foo()
{
return 42;
}
int main()
{
int fd[2];
pthread_t tid;
signal(SIGPIPE, SIG_IGN);
if (pipe(fd) == -1)
return 1;
close(fd[0]);
pthread_create(&tid, 0, fn, &fd[1]);
while (1) {
int x = foo();
}
return 0;
}
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end of thread, other threads:[~2012-10-24 16:02 UTC | newest]
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[not found] <bug-10227-4717@http.sourceware.org/bugzilla/>
2012-07-04 17:02 ` [Bug threads/10227] GDB resumes inferior unexpectedly when receiving ignored signal; step/next behave as continue palves at redhat dot com
2012-10-24 15:54 ` palves at redhat dot com
2012-10-24 16:02 ` ppluzhnikov at google dot com
2009-06-02 6:15 [Bug threads/10227] New: " ppluzhnikov at google dot com
2009-06-02 6:36 ` [Bug threads/10227] " ppluzhnikov at google dot com
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