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Date:	Thu, 11 Dec 2014 13:05:04 +0000
Message-ID:	<CAOSUUSpLD+5=yC5XfuRLN4CenHiYKSWdp_3nHEDUUMdotYgq_g@mail.gmail.com>
Subject:	Re: proc_retry question
From:	xmoon 2000 <xmoon2000 AT googlemail DOT com>
To:	cygwin <cygwin AT cygwin DOT com>
X-IsSubscribed:	yes

On 11 December 2014 at 10:33, Corinna Vinschen
<corinna-cygwin AT cygwin DOT com> wrote:
> On Dec 11 09:02, xmoon 2000 wrote:
>> On 8 December 2014 at 16:27, Corinna Vinschen <corinna-cygwin AT cygwin DOT com> wrote:
>> > On Dec  8 16:03, xmoon 2000 wrote:
>> >> On 8 December 2014 at 15:50, Corinna Vinschen <> wrote:
>> >> > On Dec  8 14:48, xmoon 2000 wrote:
>> >> >> On 8 December 2014 at 14:40, Corinna Vinschen <> wrote:
>> >> >> > On Dec  8 12:40, xmoon 2000 wrote:
>> >> >> >> I have set proc_retry = 10.
>> >> >> >>
>> >> >> >> I still get the following error message but showing rety 10:
>> >> >> >>
>> >> >> >>
>> >> >> >>       0 [main] sh 35392 fork: child -1 - forked process 35736 died
>> >> >> >> unexpectedly, retry 10, exit code 0xC0000005, errno 11
>> >> >> >> /q/onlyPastEnd.sh: fork: retry: Resource temporarily unavailable
>> >> >> >>
>> >> >> >> Does this mean it got an error and cygwin will now retry 10 times?
>> >> >> >>
>> >> >> >> OR does it mean it retry-ed 10 and failed?
>> >> >> >
>> >> >> > It tried 10 times and failed.
>> >> >>
>> >> >> Are you certain about that?
>> >> >
>> >> > No.  Sorry, it's the other way around.  If retry is 10, no retry
>> >> > occured.  AFAICS that's because you get an C000005 status code, which is
>> >> > STATUS_ACCESS_VIOLATION.  In case of this error code, Cygwin does
>> >> > explicitely not retry.
>> >>
>> >> Do this suggest that I need to do the rebaseall - as documented in:
>> >> http://x.cygwin.com/docs/faq/cygwin-x-faq.html#q-fork-failures
>> >
>> > You can try, but this looks a bit different.  A SEGV at fork time could
>> > be a bug in Cygwin or a result of having another Cygwin DLL in the path
>> > for some reason.
>>
>> I tried "rebasing" but with no luck.
>>
>> The problem appears when I am running 60 scripts in parallel on a 32
>> core machine. Plus, each script runs subscripts with several pipes.
>> So, I think this is a "too many processes" type of issue.
>
> It's a SEGV.  It's probably not related to having too many processes.
> Cygwin processes only care for their immediate child processes usually
> and there's a restriction to 256 or so.
>
>> Usually, windows handle my "over-coring" well and my machine just
>> works through what it needs to do. But when I try this from Cygwin, it
>> seems to cause issues.
>>
>> Any thoughts or suggest for how I could get around this?
>
> Apart from BLODA influence, or apart from debugging what causes the
> SEGV, no.  If you can provide a simple testcase, stripped to the bare
> minimum of code to reproduce the issue, it may help.
>
>
> Corinna
>
> --
> Corinna Vinschen                  Please, send mails regarding Cygwin to
> Cygwin Maintainer                 cygwin AT cygwin DOT com
> Red Hat


Corinna,

I can't do a SCSE because it relies on files and a whole data structure here.

Any chance you could RemoteView my system?

Moon

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