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From: Achim Gratz <Stromeko@nexgo.de>
To: cygwin@cygwin.com
Subject: Re: top exits spuriously on R2016
References: <876032xpj6.fsf@Rainer.invalid>
Date: Thu, 16 Aug 2018 21:19:52 +0200
In-Reply-To: <876032xpj6.fsf@Rainer.invalid> (Achim Gratz's message of "Fri,	01 Jun 2018 21:41:49 +0200")
Message-ID: <87ftzei0fb.fsf@Rainer.invalid>
User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux)
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Achim Gratz writes:
> I've got my new R2016 server re-configured to only have a single
> processor group instead of two (and HT switched off to match the
> available memory better to my median memory usage per core).
>
> However, top still spuriously exits (I originally thought it had to do
> with top not being processor group aware).  When starting it in an RDP
> session in mintty, it will most of the time exit without any output at
> all or after clearing the screen.  Running it remotely via ssh through
> screen / tmux it'll typically exit while in the middle the first refresh
> (after the initial display) partially emitted.  Piping stdout and stderr
> through less or into a file will often show the error message
>
> top: failed openproc: Bad address
>
> before the exit.  Running it via strace in a separate window it keeps
> working just fine.  I think it may be hitting a race condition, but I'm
> running out of ideas with this Heisenbug.
>
> Is anyone seeing something similar and/ or having suggestion for a
> workaround?

The issue seems to be solved with the test version of Cygwin 2.11.0 as
well as a different problem I've had with GNU parallel on the same
machine.


Regards,
Achim.
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