* gdb 7.0.1 - non-stop and/or detach-on-fork not working
@ 2009-12-22 21:07 Nenad Vukicevic
2009-12-22 22:28 ` Nenad Vukicevic
0 siblings, 1 reply; 2+ messages in thread
From: Nenad Vukicevic @ 2009-12-22 21:07 UTC (permalink / raw)
To: gdb
Has there been any change in this area since 7.0.50 12/02/09 snapshot?
I am using these options:
set target-async on
set non-stop on
set detach-on-fork off
and have a simple app that forks two processes. 7.0.1 fails to break on
already established breakpoints.
Any idea what might went wrong?
Nenad
Here are the logs from 7.0.50 and 7.0.1 runs:
-------------------------------------------------------------------------------
gdb-7.0.50.20091202
Breakpoint 1 at 0x4006c3: file t.c, line 55.
Breakpoint 2 at 0x40062c: file t.c, line 11.
Breakpoint 3 at 0x400653: file t.c, line 25.
Breakpoint 4 at 0x4006af: file t.c, line 48.
(gdb) r
Starting program: /a/gdb-7.0.50.20091202/wrk/gdb/test/t
Breakpoint 1, main () at t.c:55
55 int cnt = 0;
(gdb) c
Continuing.
Start...
[New process 5719]
Created 5719
Breakpoint 2, child_proc1 () at t.c:11
11 int cnt = 0;
(gdb) [New process 5720]
Created 5720
Breakpoint 3, child_proc2 () at t.c:25
25 int cnt = 0;
Breakpoint 4, main_proc () at t.c:48
48 sleep(1000);
info threads
3 process 5720 child_proc2 () at t.c:25
2 process 5719 child_proc1 () at t.c:11
* 1 process 5689 main_proc () at t.c:48
(gdb) info breakpoints
Num Type Disp Enb Address What
1 breakpoint keep y <MULTIPLE>
breakpoint already hit 1 time
1.1 y 0x00000000004006c3 in main at t.c:55 inf 3
1.2 y 0x00000000004006c3 in main at t.c:55 inf 2
1.3 y 0x00000000004006c3 in main at t.c:55 inf 1
2 breakpoint keep y <MULTIPLE>
breakpoint already hit 1 time
2.1 y 0x000000000040062c in child_proc1 at
t.c:11 inf 3
2.2 y 0x000000000040062c in child_proc1 at
t.c:11 inf 2
2.3 y 0x000000000040062c in child_proc1 at
t.c:11 inf 1
3 breakpoint keep y <MULTIPLE>
breakpoint already hit 1 time
3.1 y 0x0000000000400653 in child_proc2 at
t.c:25 inf 3
3.2 y 0x0000000000400653 in child_proc2 at
t.c:25 inf 2
3.3 y 0x0000000000400653 in child_proc2 at
t.c:25 inf 1
4 breakpoint keep y <MULTIPLE>
breakpoint already hit 1 time
4.1 y 0x00000000004006af in main_proc at
t.c:48 inf 3
4.2 y 0x00000000004006af in main_proc at
t.c:48 inf 2
4.3 y 0x00000000004006af in main_proc at
t.c:48 inf
------------------------------------------------------------------------------
gdb-7.0.1
Breakpoint 1 at 0x4006c3: file t.c, line 55.
Breakpoint 2 at 0x40062c: file t.c, line 11.
Breakpoint 3 at 0x400653: file t.c, line 25.
Breakpoint 4 at 0x4006af: file t.c, line 48.
(gdb) r
Starting program: /a/gdb-7.0.1/wrk/gdb/test/t
Breakpoint 1, main () at t.c:55
55 int cnt = 0;
(gdb) c&
Continuing.
(gdb) Start...
[New process 10321]
Created 10321
[New process 10322]
Created 10322
Breakpoint 4, main_proc () at t.c:48
48 sleep(1000);
info threads
3 process 10322 0x0000003db44a42d6 in fork () from /lib64/libc.so.6
2 process 10321 0x0000003db44a42d6 in fork () from /lib64/libc.so.6
* 1 process 10291 main_proc () at t.c:48
(gdb) info break
Num Type Disp Enb Address What
1 breakpoint keep y 0x00000000004006c3 in main at t.c:55
breakpoint already hit 1 time
2 breakpoint keep y 0x000000000040062c in child_proc1 at t.c:11
3 breakpoint keep y 0x0000000000400653 in child_proc2 at t.c:25
4 breakpoint keep y 0x00000000004006af in main_proc at t.c:48
breakpoint already hit 1 time
(gdb) thread apply all c
Thread 3 (process 10322):
Continuing.
Thread 2 (process 10321):
Continuing.
Thread 1 (process 10291):
Continuing.
^C
Program received signal SIGINT, Interrupt.
0x0000003db44a41b0 in __nanosleep_nocancel () from /lib64/libc.so.6
(gdb)
Program received signal SIGINT, Interrupt.
0x0000003db44a41b0 in __nanosleep_nocancel () from /lib64/libc.so.6
Program received signal SIGINT, Interrupt.
0x0000003db44a41b0 in __nanosleep_nocancel () from /lib64/libc.so.6
info thread
3 process 10322 0x0000003db44a41b0 in __nanosleep_nocancel () from
/lib64/libc.so.6
2 process 10321 0x0000003db44a41b0 in __nanosleep_nocancel () from
/lib64/libc.so.6
* 1 process 10291 0x0000003db44a41b0 in __nanosleep_nocancel () from
/lib64/libc.so.6
(gdb) info break
Num Type Disp Enb Address What
1 breakpoint keep y 0x00000000004006c3 in main at t.c:55
breakpoint already hit 1 time
2 breakpoint keep y 0x000000000040062c in child_proc1 at t.c:11
3 breakpoint keep y 0x0000000000400653 in child_proc2 at t.c:25
4 breakpoint keep y 0x00000000004006af in main_proc at t.c:48
breakpoint already hit 1 time
(gdb)
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: gdb 7.0.1 - non-stop and/or detach-on-fork not working
2009-12-22 21:07 gdb 7.0.1 - non-stop and/or detach-on-fork not working Nenad Vukicevic
@ 2009-12-22 22:28 ` Nenad Vukicevic
0 siblings, 0 replies; 2+ messages in thread
From: Nenad Vukicevic @ 2009-12-22 22:28 UTC (permalink / raw)
To: gdb
Sorry for the mistake. I upgraded instead to the latest snapshot and
everything is in
order.
Nenad
On 12/22/2009 1:06 PM, Nenad Vukicevic wrote:
> Has there been any change in this area since 7.0.50 12/02/09 snapshot?
>
> I am using these options:
>
> set target-async on
> set non-stop on
> set detach-on-fork off
>
> and have a simple app that forks two processes. 7.0.1 fails to break on
> already established breakpoints.
>
> Any idea what might went wrong?
>
> Nenad
>
> Here are the logs from 7.0.50 and 7.0.1 runs:
>
>
> -------------------------------------------------------------------------------
>
> gdb-7.0.50.20091202
>
> Breakpoint 1 at 0x4006c3: file t.c, line 55.
> Breakpoint 2 at 0x40062c: file t.c, line 11.
> Breakpoint 3 at 0x400653: file t.c, line 25.
> Breakpoint 4 at 0x4006af: file t.c, line 48.
> (gdb) r
> Starting program: /a/gdb-7.0.50.20091202/wrk/gdb/test/t
>
> Breakpoint 1, main () at t.c:55
> 55 int cnt = 0;
> (gdb) c
> Continuing.
> Start...
> [New process 5719]
> Created 5719
>
> Breakpoint 2, child_proc1 () at t.c:11
> 11 int cnt = 0;
> (gdb) [New process 5720]
> Created 5720
>
> Breakpoint 3, child_proc2 () at t.c:25
> 25 int cnt = 0;
>
> Breakpoint 4, main_proc () at t.c:48
> 48 sleep(1000);
> info threads
> 3 process 5720 child_proc2 () at t.c:25
> 2 process 5719 child_proc1 () at t.c:11
> * 1 process 5689 main_proc () at t.c:48
> (gdb) info breakpoints
> Num Type Disp Enb Address What
> 1 breakpoint keep y <MULTIPLE>
> breakpoint already hit 1 time
> 1.1 y 0x00000000004006c3 in main at t.c:55
> inf 3
> 1.2 y 0x00000000004006c3 in main at t.c:55
> inf 2
> 1.3 y 0x00000000004006c3 in main at t.c:55
> inf 1
> 2 breakpoint keep y <MULTIPLE>
> breakpoint already hit 1 time
> 2.1 y 0x000000000040062c in child_proc1 at
> t.c:11 inf 3
> 2.2 y 0x000000000040062c in child_proc1 at
> t.c:11 inf 2
> 2.3 y 0x000000000040062c in child_proc1 at
> t.c:11 inf 1
> 3 breakpoint keep y <MULTIPLE>
> breakpoint already hit 1 time
> 3.1 y 0x0000000000400653 in child_proc2 at
> t.c:25 inf 3
> 3.2 y 0x0000000000400653 in child_proc2 at
> t.c:25 inf 2
> 3.3 y 0x0000000000400653 in child_proc2 at
> t.c:25 inf 1
> 4 breakpoint keep y <MULTIPLE>
> breakpoint already hit 1 time
> 4.1 y 0x00000000004006af in main_proc at
> t.c:48 inf 3
> 4.2 y 0x00000000004006af in main_proc at
> t.c:48 inf 2
> 4.3 y 0x00000000004006af in main_proc at
> t.c:48 inf
>
> ------------------------------------------------------------------------------
>
> gdb-7.0.1
>
> Breakpoint 1 at 0x4006c3: file t.c, line 55.
> Breakpoint 2 at 0x40062c: file t.c, line 11.
> Breakpoint 3 at 0x400653: file t.c, line 25.
> Breakpoint 4 at 0x4006af: file t.c, line 48.
> (gdb) r
> Starting program: /a/gdb-7.0.1/wrk/gdb/test/t
>
> Breakpoint 1, main () at t.c:55
> 55 int cnt = 0;
> (gdb) c&
> Continuing.
> (gdb) Start...
> [New process 10321]
> Created 10321
> [New process 10322]
> Created 10322
>
> Breakpoint 4, main_proc () at t.c:48
> 48 sleep(1000);
> info threads
> 3 process 10322 0x0000003db44a42d6 in fork () from /lib64/libc.so.6
> 2 process 10321 0x0000003db44a42d6 in fork () from /lib64/libc.so.6
> * 1 process 10291 main_proc () at t.c:48
> (gdb) info break
> Num Type Disp Enb Address What
> 1 breakpoint keep y 0x00000000004006c3 in main at t.c:55
> breakpoint already hit 1 time
> 2 breakpoint keep y 0x000000000040062c in child_proc1 at
> t.c:11
> 3 breakpoint keep y 0x0000000000400653 in child_proc2 at
> t.c:25
> 4 breakpoint keep y 0x00000000004006af in main_proc at t.c:48
> breakpoint already hit 1 time
> (gdb) thread apply all c
>
> Thread 3 (process 10322):
> Continuing.
>
> Thread 2 (process 10321):
> Continuing.
>
> Thread 1 (process 10291):
> Continuing.
> ^C
> Program received signal SIGINT, Interrupt.
> 0x0000003db44a41b0 in __nanosleep_nocancel () from /lib64/libc.so.6
> (gdb)
> Program received signal SIGINT, Interrupt.
> 0x0000003db44a41b0 in __nanosleep_nocancel () from /lib64/libc.so.6
>
> Program received signal SIGINT, Interrupt.
> 0x0000003db44a41b0 in __nanosleep_nocancel () from /lib64/libc.so.6
> info thread
> 3 process 10322 0x0000003db44a41b0 in __nanosleep_nocancel () from
> /lib64/libc.so.6
> 2 process 10321 0x0000003db44a41b0 in __nanosleep_nocancel () from
> /lib64/libc.so.6
> * 1 process 10291 0x0000003db44a41b0 in __nanosleep_nocancel () from
> /lib64/libc.so.6
> (gdb) info break
> Num Type Disp Enb Address What
> 1 breakpoint keep y 0x00000000004006c3 in main at t.c:55
> breakpoint already hit 1 time
> 2 breakpoint keep y 0x000000000040062c in child_proc1 at
> t.c:11
> 3 breakpoint keep y 0x0000000000400653 in child_proc2 at
> t.c:25
> 4 breakpoint keep y 0x00000000004006af in main_proc at t.c:48
> breakpoint already hit 1 time
> (gdb)
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