From: Paul Eggert <eggert@cs.ucla.edu>
To: Philipp Stephani <p.stephani2@gmail.com>
Cc: 30350@debbugs.gnu.org, Alan Third <alan@idiocy.org>,
Sam Steingold <sds@podval.org>
Subject: bug#30350: 27.0.50; Newest master can't run processes on macOS
Date: Mon, 5 Feb 2018 16:36:13 -0800 [thread overview]
Message-ID: <59f3f90b-f19d-71be-6cf9-de8a020db174@cs.ucla.edu> (raw)
In-Reply-To: <CAArVCkR7C0u1OiA0Ht4AgBoYo47NsXdnZys5vzrDM4CrcDLSCQ@mail.gmail.com>
On 02/05/2018 04:26 PM, Philipp Stephani wrote:
> It succeeds and prints nothing (i.e. the error is ENOTDIR in all cases).
> So this is even more mysterious than I thought.
Very strange. I installed the workaround into Emacs master, so at least
the symptoms should be fixed now. But I don't know why the fix worked,
and this doesn't inspire warm feelings.
The Gnulib manual says that macOS faccessat (..., "FILE/", ...)
incorrectly succeeds when FILE is a regular file, and Gnulib has code to
work around that bug that should be in effect for Emacs. However, the
Gnulib manual doesn't say that faccessat (..., "FILE/.", ...)
incorrectly succeeds in this situation, nor that faccessat (...,
"FILE/./", ...) does the right thing; and the test program I gave you
didn't illustrate any bugs in this area so I'm not sure what's going on.
It may require digging around in the FreeBSD source code to puzzle this
one out, assuming FreeBSD has the same bug that macOS does.
next prev parent reply other threads:[~2018-02-06 0:36 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-04 20:15 bug#30350: 27.0.50; Newest master can't run processes on macOS Philipp
2018-02-04 20:20 ` Philipp Stephani
2018-02-04 21:06 ` Alan Third
2018-02-04 21:12 ` Alan Third
2018-02-04 21:28 ` Philipp Stephani
2018-02-04 22:49 ` Alan Third
2018-02-04 23:16 ` Philipp Stephani
2018-02-10 10:47 ` Eli Zaretskii
2018-02-04 20:24 ` Eli Zaretskii
2018-02-05 19:13 ` Paul Eggert
2018-02-05 19:18 ` Alan Third
2018-02-05 23:56 ` Paul Eggert
2018-02-06 0:26 ` Philipp Stephani
2018-02-06 0:36 ` Paul Eggert [this message]
2018-02-06 0:43 ` Philipp Stephani
2018-02-06 23:38 ` Paul Eggert
2018-02-06 8:28 ` Alan Third
2018-02-06 22:07 ` Philipp Stephani
2018-02-06 22:10 ` Philipp Stephani
2018-02-11 15:56 ` Philipp Stephani
2018-02-06 22:44 ` Alan Third
2018-02-06 22:53 ` Noam Postavsky
2018-02-11 16:01 ` Philipp Stephani
2018-02-11 21:15 ` Alan Third
2020-08-16 16:53 ` Lars Ingebrigtsen
2020-10-02 4:54 ` Lars Ingebrigtsen
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