* Race condition on make?
@ 2022-11-14 8:53 Juanma Barranquero
2022-11-15 3:36 ` Eli Zaretskii
0 siblings, 1 reply; 8+ messages in thread
From: Juanma Barranquero @ 2022-11-14 8:53 UTC (permalink / raw)
To: Emacs developers
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$ make
ELC+ELN ../lisp/simple.elc
ELC+ELN ../lisp/minibuffer.elc
Reloading Rstealloading se tsailmpele .eslimp
le.el
LoadinLg d:o/ading
d:/Devel/emacs/repo/truDnekvel/emacs/repo/trunk/lisp/l/isp/simple.el
(source)...simp
le.el (source)...
Reloading stale minibuffer.el
Is this the result of a race condition with a -jN make?
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^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Race condition on make?
2022-11-14 8:53 Race condition on make? Juanma Barranquero
@ 2022-11-15 3:36 ` Eli Zaretskii
2022-11-15 4:23 ` Juanma Barranquero
0 siblings, 1 reply; 8+ messages in thread
From: Eli Zaretskii @ 2022-11-15 3:36 UTC (permalink / raw)
To: Juanma Barranquero; +Cc: emacs-devel
> From: Juanma Barranquero <lekktu@gmail.com>
> Date: Mon, 14 Nov 2022 09:53:15 +0100
>
> $ make
> ELC+ELN ../lisp/simple.elc
> ELC+ELN ../lisp/minibuffer.elc
> Reloading Rstealloading se tsailmpele .eslimp
> le.el
> LoadinLg d:o/ading d:/Devel/emacs/repo/truDnekvel/emacs/repo/trunk/lisp/l/isp/simple.el (source)...simp
> le.el (source)...
> Reloading stale minibuffer.el
>
> Is this the result of a race condition with a -jN make?
Where do you see a race condition?
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Race condition on make?
2022-11-15 3:36 ` Eli Zaretskii
@ 2022-11-15 4:23 ` Juanma Barranquero
2022-11-15 7:06 ` Gerd Möllmann
2022-11-15 13:49 ` Eli Zaretskii
0 siblings, 2 replies; 8+ messages in thread
From: Juanma Barranquero @ 2022-11-15 4:23 UTC (permalink / raw)
To: Eli Zaretskii; +Cc: emacs-devel
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I see the output of several parallel instances of make (run with a single
"make -j4") intermixed.
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^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Race condition on make?
2022-11-15 4:23 ` Juanma Barranquero
@ 2022-11-15 7:06 ` Gerd Möllmann
2022-11-15 18:58 ` Juanma Barranquero
2022-11-15 13:49 ` Eli Zaretskii
1 sibling, 1 reply; 8+ messages in thread
From: Gerd Möllmann @ 2022-11-15 7:06 UTC (permalink / raw)
To: lekktu; +Cc: eliz, emacs-devel
I think you are seeing bug#58653 (not a bug in Emacs, I guess).
I'm now using MAKEFLAGS="-j8 --output-sync=line", with gmake 4.4. Older
versions, for instance 3.81 which comes with Xcode, don't seem to
support --output-sync. If not syncing is a feature, I'm kind of in
doubt, but hey...
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Race condition on make?
2022-11-15 4:23 ` Juanma Barranquero
2022-11-15 7:06 ` Gerd Möllmann
@ 2022-11-15 13:49 ` Eli Zaretskii
2022-11-15 19:00 ` Juanma Barranquero
1 sibling, 1 reply; 8+ messages in thread
From: Eli Zaretskii @ 2022-11-15 13:49 UTC (permalink / raw)
To: Juanma Barranquero; +Cc: emacs-devel
> From: Juanma Barranquero <lekktu@gmail.com>
> Date: Tue, 15 Nov 2022 05:23:56 +0100
> Cc: emacs-devel@gnu.org
>
> I see the output of several parallel instances of make (run with a single "make -j4") intermixed.
That's because 4 programs are writing at the same time to the same
device. The OS in most cases succeeds in separating the outputs, but
that is not guaranteed.
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Race condition on make?
2022-11-15 13:49 ` Eli Zaretskii
@ 2022-11-15 19:00 ` Juanma Barranquero
2022-11-15 20:11 ` Eli Zaretskii
0 siblings, 1 reply; 8+ messages in thread
From: Juanma Barranquero @ 2022-11-15 19:00 UTC (permalink / raw)
To: Eli Zaretskii; +Cc: emacs-devel
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On Tue, Nov 15, 2022 at 2:49 PM Eli Zaretskii <eliz@gnu.org> wrote:
> That's because 4 programs are writing at the same time to the same
> device. The OS in most cases succeeds in separating the outputs, but
> that is not guaranteed.
Ok, though I had never seen such a thing before in many, many emacs
compilations and bootstrappings.
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^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Race condition on make?
2022-11-15 19:00 ` Juanma Barranquero
@ 2022-11-15 20:11 ` Eli Zaretskii
0 siblings, 0 replies; 8+ messages in thread
From: Eli Zaretskii @ 2022-11-15 20:11 UTC (permalink / raw)
To: Juanma Barranquero; +Cc: emacs-devel
> From: Juanma Barranquero <lekktu@gmail.com>
> Date: Tue, 15 Nov 2022 20:00:27 +0100
> Cc: emacs-devel@gnu.org
>
> On Tue, Nov 15, 2022 at 2:49 PM Eli Zaretskii <eliz@gnu.org> wrote:
>
> > That's because 4 programs are writing at the same time to the same
> > device. The OS in most cases succeeds in separating the outputs, but
> > that is not guaranteed.
>
> Ok, though I had never seen such a thing before in many, many emacs compilations and bootstrappings.
It's very rare on MS-Windows, at least IME.
^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2022-11-15 20:11 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
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2022-11-14 8:53 Race condition on make? Juanma Barranquero
2022-11-15 3:36 ` Eli Zaretskii
2022-11-15 4:23 ` Juanma Barranquero
2022-11-15 7:06 ` Gerd Möllmann
2022-11-15 18:58 ` Juanma Barranquero
2022-11-15 13:49 ` Eli Zaretskii
2022-11-15 19:00 ` Juanma Barranquero
2022-11-15 20:11 ` Eli Zaretskii
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