From: Ken Brown <kbrown@cornell.edu>
To: Eli Zaretskii <eliz@gnu.org>
Cc: yamaoka@jpl.org, 70415@debbugs.gnu.org
Subject: bug#70415: 30.0.50; [Cygwin] `lock-file' creates a symlink with funny name
Date: Sat, 4 May 2024 13:15:19 -0400 [thread overview]
Message-ID: <fa5ab0b0-3803-4b4c-8ff6-b3aa447473ef@cornell.edu> (raw)
In-Reply-To: <618931e0-ad26-4d07-b9c6-8563831a9fb8@cornell.edu>
On 5/2/2024 10:26 AM, Ken Brown wrote:
> On 5/2/2024 2:21 AM, Eli Zaretskii wrote:
>>> Date: Wed, 1 May 2024 17:20:20 -0400
>>> Cc: yamaoka@jpl.org, 70415@debbugs.gnu.org
>>> From: Ken Brown <kbrown@cornell.edu>
>>>
>>>> char const *lock_info_fmt = (boot
>>>> ? "%s@%s.%"PRIdMAX":%"PRIdMAX
>>>> : "%s@%s.%"PRIdMAX);
>>>> int len = snprintf (lock_info_str, sizeof lock_info_str,
>>>> lock_info_fmt, user_name, host_name, pid, boot);
>>>>
>>>> get_boot_sec calls get_boot_time, which is a Gnulib function (see
>>>> lib/boot-time.c). So I guess the key to unlock this puzzle is
>>>> somewhere there.
>>>
>>> I took a quick look at get_boot_time and found a bug, which may explain
>>> why some Cygwin systems behave differently from others. I've reported
>>> it here:
>>>
>>> https://lists.gnu.org/archive/html/bug-gnulib/2024-05/msg00008.html
>>
>> Thanks. This probably explains why the ":-NNNN" part sometimes
>> appears and sometimes doesn't appear in Cygwin builds of Emacs, but
>> AFAIU it does NOT explain why unlinking the symlink (when the file is
>> unlocked) fails when the lock file name includes the ":-NNNN" part.
>> Right?
>
> Yes, that's right. I still need to look into that.
It turns out that there was a Cygwin bug (already fixed in the Cygwin
development sources) that affected only version 3.5.3, and Bruno added a
workaround to Gnulib. I now see the ":NNNN" part on my system, without
a minus sign, and the lock file is deleted properly.
Katsumi, can you apply Bruno's two patches and confirm that the bug is
fixed?
Ken
next prev parent reply other threads:[~2024-05-04 17:15 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-16 12:33 bug#70415: 30.0.50; [Cygwin] `lock-file' creates a symlink with funny name Katsumi Yamaoka
2024-04-16 13:32 ` Eli Zaretskii
2024-04-16 18:01 ` Pierre Téchoueyres
2024-04-16 22:57 ` Ken Brown
2024-04-17 12:08 ` Eli Zaretskii
2024-04-16 23:58 ` Katsumi Yamaoka
2024-04-17 12:21 ` Eli Zaretskii
2024-04-22 16:15 ` Ken Brown
2024-04-29 23:05 ` Ken Brown
2024-04-30 2:34 ` Eli Zaretskii
2024-04-30 6:45 ` Katsumi Yamaoka
2024-04-30 15:23 ` Ken Brown
2024-04-30 16:20 ` Eli Zaretskii
2024-05-01 21:20 ` Ken Brown
2024-05-02 6:21 ` Eli Zaretskii
2024-05-02 14:26 ` Ken Brown
2024-05-04 17:15 ` Ken Brown [this message]
2024-05-04 17:25 ` Eli Zaretskii
2024-05-04 17:46 ` Ken Brown
2024-05-04 22:01 ` Ken Brown
2024-05-05 5:40 ` Eli Zaretskii
2024-05-05 16:21 ` Ken Brown
2024-05-05 16:32 ` Eli Zaretskii
2024-05-05 17:02 ` Ken Brown
2024-05-05 18:00 ` Michael Albinus via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-05-07 0:07 ` Katsumi Yamaoka
2024-05-04 17:30 ` Ken Brown
2024-05-04 17:37 ` Eli Zaretskii
2024-05-04 18:46 ` Ken Brown
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