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Date: Thu, 27 Oct 2005 13:18:35 -0400
From: Christopher Faylor <cgf-no-personal-reply-please AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: Hang with 20051018 (3rd version) snapshot while building OOo
Message-ID: <20051027171835.GA24332@trixie.casa.cgf.cx>
Reply-To: cygwin AT cygwin DOT com
References: <4356A25A DOT 4080204 AT scytek DOT de> <20051019205011 DOT GA22512 AT trixie DOT casa DOT cgf DOT cx> <4356BF11 DOT 1090101 AT scytek DOT de> <43579205 DOT 1090801 AT scytek DOT de> <20051023205044 DOT GA3648 AT trixie DOT casa DOT cgf DOT cx> <435E5839 DOT 4070902 AT scytek DOT de> <20051025184057 DOT GB19220 AT trixie DOT casa DOT cgf DOT cx> <43610899 DOT 8010102 AT scytek DOT de>
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On Thu, Oct 27, 2005 at 01:04:25PM -0400, Volker Quetschke wrote:
>(BIG-SNIP)
>>>I only paste/attach the 20051024 info, if there is interest I can also send
>>>the 20051023 info.
>>>(snip)
>> 
>> I would like to see the old strace and any other straces you have to see
>> if there's any pattern to something I'm noticing.
>I got a few more, but before spamming this list with straces I have
>some news. "We" managed to reproduce the hangs on that particular
>machine more easily now, but I didn't have the time yet to try
>to reproduce it on my machines. I hope tonight ...
>
>But I can relay the answers to the following questions:
>> I don't see any large times being reported at the beginning of the strace.
>> I'd expect that if you notice the hang, attach to the process, and then
>> do the "ls /proc/<hangpid>/fd".  Can you give me a feel for times of:
>
>First reproducibility: Initially the 20051024 hung every ~ 10 minutes,
>but "now" (At the time I got the email) it is running for more than
>15 hours.
>> 
>> - noticed the problem
>1 min - several hours, then doing ps and cygcheck.
>
>> - attached to process with strace
>5-10 minutes after noticing (max)
>
>> - performed ls
> < 1 min (right after...)

Are you sure that attaching to the process with strace isn't what actually
what caused the process to start up?  I don't see any 1 minute delays in
the strace log.

However, if you could wait for a couple minutes between attaching via
strace and doing the "ls" that might be instructive.

cgf

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