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bug#39118: Segfault while building on 64-bit Cygwin
From: |
szgyg |
Subject: |
bug#39118: Segfault while building on 64-bit Cygwin |
Date: |
Wed, 5 Feb 2020 23:42:50 +0100 |
User-agent: |
Mutt/1.9.0 (2017-09-02) |
On Wed, Feb 05, 2020 at 04:11:04PM -0500, John Cowan wrote:
> On Mon, Feb 3, 2020 at 5:11 PM szgyg <address@hidden> wrote:
>
> On Fri, Jan 31, 2020 at 09:23:19AM -0500, John Cowan wrote:
> > > Aaaand... Cygwin doesn't do core dumps. Under the skin it's WIndows,
> > after
> > > all. This is what I get when I specify ulimit -c unlimited and rebuild:
> > > [...]
> >
> > Please see my previous mail on how to get a real core dump on cygwin
> > https://debbugs.gnu.org/cgi/bugreport.cgi?bug=39118#28
>
>
> Okay, I looked at that page. However, Cygwin's dumper requires you to know
> the Windows PID of the process to dump. Clearly it is intended for a
> long-running process such as a server process, which you can force to core
> dump, as if by "/bin/kill -SIGSEGV pid"; it is not suitable for a process
> that gets a segmentation violation for internal reasons. In any case, when
> building, I have no idea of the pid of the process which is dumping; it
> starts up and then dumps immediately.
| One common way to use dumper is to plug it into cygwin's Just-In-Time
| debugging facility by adding
| error_start=x:\path\to\dumper.exe
| to the CYGWIN environment variable. Please note that x:\path\to\dumper.exe
| is Windows-style and not cygwin path. If error_start is set this way, then
| dumper will be started whenever some program encounters a fatal error.
s
- bug#39118: Segfault while building on 64-bit Cygwin, szgyg, 2020/02/03
- bug#39118: Segfault while building on 64-bit Cygwin, Andy Wingo, 2020/02/06
- bug#39118: Segfault while building on 64-bit Cygwin, Charles Stanhope, 2020/02/07
- bug#39118: Segfault while building on 64-bit Cygwin, Charles Stanhope, 2020/02/14
- bug#39118: Segfault while building on 64-bit Cygwin, Mike Gran, 2020/02/16
- bug#39118: Segfault while building on 64-bit Cygwin, John Cowan, 2020/02/16
- bug#39118: Segfault while building on 64-bit Cygwin, Charles Stanhope, 2020/02/16
- bug#39118: Segfault while building on 64-bit Cygwin, Charles Stanhope, 2020/02/17
- bug#39118: Segfault while building on 64-bit Cygwin, Andy Wingo, 2020/02/17