From: Alexey Izbyshev <izbyshev@ispras.ru>
To: cygwin@cygwin.com
Subject: Re: Deadlock of the process tree when running make
Date: Fri, 08 Apr 2022 11:42:29 +0300 [thread overview]
Message-ID: <5c00c0cd21bac6b4564fe5d2721520f1@ispras.ru> (raw)
In-Reply-To: <23e627a3-39a7-e22f-6372-65d50f1a63d6@SystematicSw.ab.ca>
On 2022-04-08 02:54, Brian Inglis wrote:
> I've seen infinite loops with readlink in build scripts under Cygwin.
> Seeing that readlink in a process tree makes me suspicious that
> something in a shell script is looping because two paths never match
> or always match under Cygwin.
> Often there is one constant path and a varying path which is subjected
> to readlink in a loop.
> Under Cygwin, you may have to pass the first path through readlink and
> compare that resulting path against the varying value.
Thanks, but I don't think I have such loops in this project. Also, other
processes hang in independent make jobs, so a hang around readlink
wouldn't explain that.
There is also an additional detail that I forgot to mention: in the
stack trace of all leaf processes as displayed by ProcessHacker, it
seems that the executable entry point is not reached yet. The only
non-Windows-DLL location is in cygwin1.dll, so I suspect that all
processes hang at early initialization in Cygwin's DLL entry point.
Thanks,
Alexey
next prev parent reply other threads:[~2022-04-08 8:42 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-07 21:53 Alexey Izbyshev
2022-04-07 23:54 ` Brian Inglis
2022-04-08 8:42 ` Alexey Izbyshev [this message]
2022-04-08 17:04 ` Brian Inglis
2022-04-11 13:27 ` Alexey Izbyshev
2022-04-09 10:17 ` Takashi Yano
2022-04-09 11:00 ` Alexey Izbyshev
2022-04-09 11:02 ` Alexey Izbyshev
2022-04-09 11:46 ` Takashi Yano
2022-04-09 16:07 ` Alexey Izbyshev
2022-04-09 16:57 ` Takashi Yano
2022-04-09 17:23 ` Alexey Izbyshev
2022-04-09 17:54 ` Takashi Yano
2022-04-09 19:35 ` Alexey Izbyshev
2022-04-09 20:26 ` Alexey Izbyshev
2022-04-10 7:34 ` Takashi Yano
2022-04-10 12:13 ` Alexey Izbyshev
2022-04-10 20:49 ` Alexey Izbyshev
2022-04-11 8:35 ` Takashi Yano
2022-04-11 10:10 ` Alexey Izbyshev
2022-04-13 16:48 ` Alexey Izbyshev
2022-04-13 17:22 ` Takashi Yano
2022-04-13 17:27 ` Alexey Izbyshev
2022-04-13 23:17 ` Alexey Izbyshev
2022-04-16 9:39 ` Takashi Yano
2022-04-16 13:21 ` Alexey Izbyshev
2022-04-27 11:22 ` Takashi Yano
2022-04-27 12:19 ` Alexey Izbyshev
2022-04-11 5:23 ` Jeremy Drake
2022-04-11 8:36 ` Takashi Yano
2022-04-11 15:28 ` Alexey Izbyshev
2022-04-11 17:02 ` Jeremy Drake
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