Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sources.redhat.com/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sources.redhat.com/ml/#faqs>
Sender: cygwin-owner AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
Delivered-To: mailing list cygwin AT cygwin DOT com
To: cygwin AT cygwin DOT com
From: Rolf Campbell <Endlisnis AT mailc DOT net>
Subject: Re: Snapshot 20040306: make hangs
Date: Mon, 08 Mar 2004 18:34:24 -0500
Lines: 29
Message-ID: <c2ivu1$a5m$1@sea.gmane.org>
References: <40451E42 DOT 4070806 AT scytek DOT de> <4044B845 DOT 7000003 AT scytek DOT de> <20040303033617 DOT GA5325 AT redhat DOT com> <c25p18$tn3$1 AT sea DOT gmane DOT org> <20040304021428 DOT GA5815 AT redhat DOT com> <20040304155948 DOT GA21030 AT redhat DOT com> <20040305193352 DOT GA4324 AT redhat DOT com> <20040305193801 DOT GA4500 AT redhat DOT com> <20040305224218 DOT GA9347 AT redhat DOT com> <c2i7gs$bts$1 AT sea DOT gmane DOT org> <20040308165246 DOT GA27926 AT redhat DOT com>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit
X-Complaints-To: usenet AT sea DOT gmane DOT org
X-Gmane-NNTP-Posting-Host: ottgw.tropicnetworks.com
User-Agent: Mozilla Thunderbird 0.5 (Windows/20040207)
In-Reply-To: <20040308165246.GA27926@redhat.com>

Christopher Faylor wrote:
> If you want to analyze the strace yourself and offer comment, then
> please do so.  Sending strace snippets is normally useless.  99% of the
> time, people send the equivalent of a photo of an accident scene with
> the thought that the picture will show why the accident occurred, i.e.,
> the strace snippet is worthless.  I gave up trying to inspect
> unsolicited strace output a long time ago.
> cgf

I did notice one pattern after stairing blindly at strace output for a 
while.  Every time it freezes, there is a:

    43 4628798 [sig] make 2064 setup_handler: signal 20 not delivered
    47 4628845 [sig] make 2064 sigpacket::process: returning 0

very near the end of strace output (last 10 lines).  And on every 
successful run that I've looked at, I see:

    43 6057447 [sig] make 3768 setup_handler: signal 20 delivered
    41 6057488 [sig] make 3768 sigpacket::process: returning 1

in the last 150 lines of stace output.

What is signal 20 anyway?

I see it get 'not delivered' in the success runs too, but never so close 
to the end (1000's of lines up from the end).

-Rolf


--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Problem reports:       http://cygwin.com/problems.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/