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bug#20843: 24.5; Profiler error: "Invalid sampling interval"
From: |
Eli Zaretskii |
Subject: |
bug#20843: 24.5; Profiler error: "Invalid sampling interval" |
Date: |
Fri, 19 Jun 2015 20:42:31 +0300 |
> From: Sebastien Vauban <sva-news@mygooglest.com>
> Date: Fri, 19 Jun 2015 15:38:32 +0200
>
> >> Can you step with GDB into setup_cpu_timer, and see what goes wrong
> >> there? I suspect this portions:
> >>
> >> if (! RANGED_INTEGERP (1, sampling_interval,
> >> (TYPE_MAXIMUM (time_t) < EMACS_INT_MAX / billion
> >> ? ((EMACS_INT) TYPE_MAXIMUM (time_t) * billion
> >> + (billion - 1))
> >> : EMACS_INT_MAX)))
> >> return NOT_RUNNING;
> >>
> >> If so, what does TYPE_MAXIMUM(time_t) return in your build?
> >
> > Sorry, I can't -- lack of time, and (moreover) of knowledge...
>
> Eli, if you can give me a couple of instructions on how to step into
> that function ("when I should type what?"), I'm willing to give it
> a try, as this is reproducible over different Emacs sessions...
Like this:
$ cd /path/to/emacs/src
$ gdb ./emacs.exe
(gdb) break setup_cpu_timer
(gdb) run -Q
Inside Emacs, type:
M-x profiler-start RET RET
Then GDB will get control, because profiler-start calls
setup_cpu_timer. Then type at GDB prompt:
(gdb) next
(gdb) p TYPE_MAXIMUM(time_t)
(gdb) p EMACS_INT_MAX
(gdb) p EMACS_INT_MAX/billion
(gdb) p sampling_interval
(gdb) next
(gdb) next
and continue stepping until it returns. Then post here everything you
see during this session.
Thanks.
- bug#20843: 24.5; Profiler error: "Invalid sampling interval", Sebastien Vauban, 2015/06/18
- bug#20843: 24.5; Profiler error: "Invalid sampling interval", Eli Zaretskii, 2015/06/18
- bug#20843: 24.5; Profiler error: "Invalid sampling interval", Ken Brown, 2015/06/20
- bug#20843: 24.5; Profiler error: "Invalid sampling interval", Eli Zaretskii, 2015/06/20
- bug#20843: 24.5; Profiler error: "Invalid sampling interval", Ken Brown, 2015/06/20
- bug#20843: 24.5; Profiler error: "Invalid sampling interval", Eli Zaretskii, 2015/06/21
- bug#20843: 24.5; Profiler error: "Invalid sampling interval", Ken Brown, 2015/06/21
- bug#20843: 24.5; Profiler error: "Invalid sampling interval", Sebastien Vauban, 2015/06/22
- bug#20843: 24.5; Profiler error: "Invalid sampling interval", Ken Brown, 2015/06/22
- bug#20843: 24.5; Profiler error: "Invalid sampling interval", Eli Zaretskii, 2015/06/22
- bug#20843: 24.5; Profiler error: "Invalid sampling interval", Ken Brown, 2015/06/22
- bug#20843: 24.5; Profiler error: "Invalid sampling interval", Ken Brown, 2015/06/22