2020年1月20日(月) 15:17 Marco Atzeri <marco.atz...@gmail.com>:
>
> I can not replicate with latest snapshot
>
> $ uname -a
> CYGWIN_NT-10.0 LAPTOP-82F08ILC 3.1.2s(0.340/5/3) 2020-01-14 16:33 x86_64
> Cygwin
>
> $ mintty --version
> mintty 3.1.0 (x86_64-pc-cygwin)
> ...
>
> $ for i in {0..99}; do date; done | uniq -c
> 6 Mon, Jan 20, 2020 8:15:49 AM
> 18 Mon, Jan 20, 2020 8:15:50 AM
> 19 Mon, Jan 20, 2020 8:15:51 AM
> 16 Mon, Jan 20, 2020 8:15:52 AM
> 20 Mon, Jan 20, 2020 8:15:53 AM
> 21 Mon, Jan 20, 2020 8:15:54 AM
Thank you for the information. I found that the locale also matters.
The problem is not yet fixed in the snapshot and also the latest
commit of the git repository.
Repeat-By:
I update the steps to reproduce the problem:
1. Open Cygwin Terminal
2. Run the following commands
$ LANG=ja_JP.UTF-8
$ mintty --version
$ for a in {0..99}; do date; done | uniq -c
Locale:
I found that the problem is reproduced when LANG=ja_JP.UTF-8. I
tried LANG=C and LANG=en_US.UTF-8, but the problem was not present
with these locales. I tried several locales as follows. It appears
it is related to multi-byte character sets, and also the problem
does not occur if UTF-8 is not specified.
* Not reproduced with: en_US.UTF-8, en_GB.UTF-8, de_DE.UTF-8,
fr_FR.UTF-8, ru_RU.UTF-8, ja_JP
* Reproduced with: ja_JP.UTF-8, ja_JP.utf8, zh_CN.UTF-8,
zh_TW.UTF-8, ko_KR.UTF-8
Next I tried to find out which locale category causes the problem,
but the problem is not reproduced by just specifying a locale for
one locale category. I tried the following, but none reproduced the
problem.
$ LANG=en_US.UTF-8 LC_CTYPE=ja_JP.UTF-8; mintty --version
$ for a in {0..99}; do date; done | uniq -c
$ LANG=en_US.UTF-8 LC_COLLATE=ja_JP.UTF-8; mintty --version
$ for a in {0..99}; do date; done | uniq -c
$ LANG=en_US.UTF-8 LC_MESSAGES=ja_JP.UTF-8; mintty --version
$ for a in {0..99}; do date; done | uniq -c
$ LANG=en_US.UTF-8 LC_NUMERIC=ja_JP.UTF-8; mintty --version
$ for a in {0..99}; do date; done | uniq -c
$ LANG=en_US.UTF-8 LC_TIME=ja_JP.UTF-8; mintty --version
$ for a in {0..99}; do date; done | uniq -c
$ LANG=en_US.UTF-8 LC_MONETARY=ja_JP.UTF-8; mintty --version
$ for a in {0..99}; do date; done | uniq -c
Other interesting observations are
1. To reproduce the problem, LANG needs not be set to
ja_JP.UTF-8 when "mintty --version" runs, i.e., it can be
reproduced with:
$ mintty --version
$ LANG=ja_JP.UTF-8
$ for a in {0..99}; do date; done | uniq -c
2. Once the exec starts to create a console window, the problem
persists even after resetting LANG to a non-problematic one:
$ mintty --version
$ LANG=en_US.UTF-8
$ for a in {0..99}; do date; done | uniq -c
<No problems>
$ LANG=ja_JP.UTF-8
$ for a in {0..99}; do date; done | uniq -c
<Many flashing console windows>
$ LANG=en_US.UTF-8
$ for a in {0..99}; do date; done | uniq -c
<Still there are many console windows>
Cygwin Versions:
In my environments, it is reproduced with the latest snapshot as
well. I also tried the latest version of the git repository, but
the problem has not yet fixed. I tried the following versions, but
with all the versions the same problem occurs:
1. Cygwin 3.1.2
$ uname -a
CYGWIN_NT-10.0 letsnote2019 3.1.2(0.340/5/3) 2019-12-21 15:25 x86_64
Cygwin
2. Snapshot 2020-01-14 from https://cygwin.com/snapshots/
$ uname -a
CYGWIN_NT-10.0 letsnote2019 3.1.2s(0.340/5/3) 2020-01-14 16:33 x86_64
Cygwin
3. Commit 85aff2830 from git://sourceware.org/git/newlib-cygwin.git
$ uname -a
CYGWIN_NT-10.0 letsnote2019 3.1.2(0.340/5/3) 2020-01-19 15:12 x86_64
Cygwin
4. Commit 4261a8f5c from git://sourceware.org/git/newlib-cygwin.git
$ uname -a
CYGWIN_NT-10.0 letsnote2019 3.1.2(0.340/5/3) 2020-01-21 00:57 x86_64
Cygwin
Also, this is not a specific problem of one computer because I tried
with two laptops and both reproduce the same problem.
Best,
Koichi
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