* debugging core dump
@ 2017-04-11 13:16 Phillip Lord
2017-04-11 13:28 ` Eli Zaretskii
2017-04-11 13:32 ` Stefan Monnier
0 siblings, 2 replies; 4+ messages in thread
From: Phillip Lord @ 2017-04-11 13:16 UTC (permalink / raw)
To: emacs-devel
I'm trying to build emacs-25.1 from tagged version in repo. But I am
getting a core dump during generation of bootstrap-emacs. This seems
entirely repeatable.
I have both emacs-25 head and master building. I have also had
emacs-25.1 building on other machines. Not sure how to debug this;
advice welcome.
Phil
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: debugging core dump
2017-04-11 13:16 debugging core dump Phillip Lord
@ 2017-04-11 13:28 ` Eli Zaretskii
2017-04-11 13:32 ` Stefan Monnier
1 sibling, 0 replies; 4+ messages in thread
From: Eli Zaretskii @ 2017-04-11 13:28 UTC (permalink / raw)
To: Phillip Lord; +Cc: emacs-devel
> From: phillip.lord@russet.org.uk (Phillip Lord)
> Date: Tue, 11 Apr 2017 14:16:54 +0100
>
> I'm trying to build emacs-25.1 from tagged version in repo. But I am
> getting a core dump during generation of bootstrap-emacs. This seems
> entirely repeatable.
>
> I have both emacs-25 head and master building. I have also had
> emacs-25.1 building on other machines. Not sure how to debug this;
> advice welcome.
Can you show the backtrace from the core dump?
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: debugging core dump
2017-04-11 13:16 debugging core dump Phillip Lord
2017-04-11 13:28 ` Eli Zaretskii
@ 2017-04-11 13:32 ` Stefan Monnier
2017-04-11 17:11 ` Phillip Lord
1 sibling, 1 reply; 4+ messages in thread
From: Stefan Monnier @ 2017-04-11 13:32 UTC (permalink / raw)
To: emacs-devel
> I have both emacs-25 head and master building. I have also had
> emacs-25.1 building on other machines. Not sure how to debug this;
> advice welcome.
Here's what I do, in those cases:
M-x cd .../emacs/src
M-x gud-gdb RET gdb ... temacs RET
b maybe_call_debugger
r -batch -l loadup dump
[...crash...]
bt
the `r` line may need to be adjusted depending on whether the crash
happens for the generation of src/bootstrap-emacs or src/emacs: I just
copy&paste it from the failed build.
Stefan
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: debugging core dump
2017-04-11 13:32 ` Stefan Monnier
@ 2017-04-11 17:11 ` Phillip Lord
0 siblings, 0 replies; 4+ messages in thread
From: Phillip Lord @ 2017-04-11 17:11 UTC (permalink / raw)
To: Stefan Monnier; +Cc: emacs-devel
Stefan Monnier <monnier@iro.umontreal.ca> writes:
>> I have both emacs-25 head and master building. I have also had
>> emacs-25.1 building on other machines. Not sure how to debug this;
>> advice welcome.
>
> Here's what I do, in those cases:
>
> M-x cd .../emacs/src
> M-x gud-gdb RET gdb ... temacs RET
> b maybe_call_debugger
> r -batch -l loadup dump
> [...crash...]
> bt
>
> the `r` line may need to be adjusted depending on whether the crash
> happens for the generation of src/bootstrap-emacs or src/emacs: I just
> copy&paste it from the failed build.
I bisected instead. It's the "-no-pie" problem that Paul fixed in
99892eeec. Guess this is the first time I've tried to compile other than
head on this version.
Phil
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2017-04-11 17:11 UTC | newest]
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2017-04-11 13:16 debugging core dump Phillip Lord
2017-04-11 13:28 ` Eli Zaretskii
2017-04-11 13:32 ` Stefan Monnier
2017-04-11 17:11 ` Phillip Lord
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