From: Takashi Yano <takashi.yano@nifty.ne.jp>
To: cygwin@cygwin.com
Cc: Orgad Shaneh <orgads@gmail.com>
Subject: Re: mintty crashes on Windows 7
Date: Wed, 4 May 2022 20:16:10 +0900 [thread overview]
Message-ID: <20220504201610.125888f234ffe063fa6773c0@nifty.ne.jp> (raw)
In-Reply-To: <CAGHpTB+tZX+z0ZkCNG-42bp4Pw+YKUXkccnnNqwN_tHRekk=UA@mail.gmail.com>
On Wed, 4 May 2022 12:46:28 +0300
Orgad Shaneh wrote:
> On Wed, May 4, 2022 at 12:33 PM Orgad Shaneh <orgads@gmail.com> wrote:
> >
> > On Tue, May 3, 2022 at 7:10 PM Takashi Yano <takashi.yano@nifty.ne.jp> wrote:
> > >
> > > On Tue, 3 May 2022 18:52:28 +0300
> > > Orgad Shaneh wrote:
> > > > On Tue, May 3, 2022 at 6:23 PM Takashi Yano <takashi.yano@nifty.ne.jp> wrote:
> > > > >
> > > > > On Tue, 3 May 2022 14:47:17 +0300
> > > > > Orgad Shaneh wrote:
> > > > > > Hi,
> > > > > >
> > > > > > Running `mintty ./bash` crashes on Windows 7 on cygwin-3_3-branch.
> > > > > >
> > > > > > Tested in MSYS2 on merge-3.3 branch from
> > > > > > https://github.com/orgads/msys2-runtime-1. It includes the tip of
> > > > > > cygwin-3_3-branch as of today (05827d2df8).
> > > > > >
> > > > > I cannot reproduce this with cygwin git head of cygwin-3_3-branch.
> > > > > Is this MSYS2 specific problem?
> > > >
> > > > You're right. I can't reproduce either. Only in my MSYS branch.
> > > >
> > > > Can you give me some guidance how to debug it?
> > >
> > > If you could identify which commit causes the issue, It would help.
> >
> > 0e1847fb87f5306cda6c022540560c5926627ae1 is the first bad commit
> > commit 0e1847fb87f5306cda6c022540560c5926627ae1
> > Author: Takashi Yano <takashi.yano@nifty.ne.jp>
> > Date: Mon Feb 28 20:25:09 2022 +0900
> >
> > Cygwin: pty: Isolate CTRL_C_EVENTs between ptys.
> >
> > - With this patch, unique invisible consoles are created for each pty
> > to isolate CTRL_C_EVENTs between ptys. This is necessary by Ctrl-C
> > handling in fhandler_termios::process_sigs() for non-cygwin apps
> > started in pty if the pseudo console is disabled.
> >
> > winsup/cygwin/fhandler_termios.cc | 6 ++----
> > winsup/cygwin/fhandler_tty.cc | 17 +++++++++++++++++
> > winsup/cygwin/tty.cc | 2 ++
> > 3 files changed, 21 insertions(+), 4 deletions(-)
> >
> > I tried reverting this commit, and it fixed the crash indeed.
> >
> > - Orgad
>
> Reduced the revert to this:
> @@ -979,16 +979,10 @@ fhandler_pty_slave::open (int flags, mode_t)
> code does not work as expected because it calls Win32
> API directly rather than cygwin read()/write(). Due to
> this behaviour, protection based on attach_mutex does
> not take effect. */
> get_ttyp ()->need_invisible_console = true;
> - else if (_major (myself->ctty) != DEV_CONS_MAJOR
> - && (!get_ttyp ()->invisible_console_pid
> - || !pinfo (get_ttyp ()->invisible_console_pid)))
> - /* Create a new invisible console for each pty to isolate
> - CTRL_C_EVENTs between ptys. */
> - get_ttyp ()->need_invisible_console = true;
> else
> {
> acquire_attach_mutex (mutex_timeout);
> fhandler_console::need_invisible ();
> release_attach_mutex ();
A few things about this.
1) bash exits with exit code 127 for 'mintty bash'
2) 'mintty bash' does not work, but 'mintty ash' and 'mintty tcsh' work.
--
Takashi Yano <takashi.yano@nifty.ne.jp>
next prev parent reply other threads:[~2022-05-04 11:16 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-03 11:47 Orgad Shaneh
2022-05-03 15:23 ` Takashi Yano
2022-05-03 15:52 ` Orgad Shaneh
2022-05-03 16:10 ` Takashi Yano
2022-05-04 9:33 ` Orgad Shaneh
2022-05-04 9:46 ` Orgad Shaneh
2022-05-04 11:16 ` Takashi Yano [this message]
2022-05-04 13:27 ` Orgad Shaneh
2022-05-05 1:20 ` Takashi Yano
2022-05-05 1:27 ` Takashi Yano
2022-05-05 1:59 ` Takashi Yano
2022-05-05 3:33 ` Takashi Yano
2022-05-05 4:41 ` Takashi Yano
2022-05-05 6:44 ` Takashi Yano
2022-05-05 22:48 ` Takashi Yano
2022-05-06 14:05 ` Orgad Shaneh
2022-05-06 17:22 ` Brian Inglis
2022-05-06 19:02 ` Takashi Yano
2022-05-06 19:16 ` Johannes Schindelin
2022-05-06 20:13 ` Takashi Yano
2022-05-07 0:20 ` Takashi Yano
2022-05-08 11:08 ` Takashi Yano
2022-05-08 11:22 ` Orgad Shaneh
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