Date: Thu, 9 Feb 2017 17:06:04 -0700 From: The Doctor <doctor@doctor.nl2k.ab.ca> To: Polytropon <freebsd@edvax.de> Cc: freebsd-questions@freebsd.org Subject: Re: Hung server Message-ID: <20170210000604.GA15497@doctor.nl2k.ab.ca> In-Reply-To: <20170210004658.8d24fd54.freebsd@edvax.de> References: <20170209232150.GA11245@doctor.nl2k.ab.ca> <20170210004658.8d24fd54.freebsd@edvax.de>
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On Fri, Feb 10, 2017 at 12:46:58AM +0100, Polytropon wrote: > On Thu, 9 Feb 2017 16:21:50 -0700, The Doctor wrote: > > Question? I s there a way of detecting why a server > > hangs? > > Can you be more specific? > > > > > Within the last month my Primary Server > > has been going into infinity mood as like to > > call it for about 2 hours at a time. > > > > No signal can get through. > > So you're observing the "networking aspect" of that server? > Do you have a non-network connection (direct console, serial > line, IPMI or something like that) that you can examine? > USB only. I could adapt a serail but mostly USB. > > > > Is this a kernel or app issue? > > Could be even more, for example a firewall issue. A system > completely hanging often indicates a lower level problem, > for example related to the kernel or a device driver, but > without proper diagnostics, it's really hard to tell. As I > said, if everything you can observe happens on the "network > aspect", it could as well be a firewall (of the server, or > _infront of_ the server) that just blocks traffic while the > programs the server runs keep working as intended... > Hmm!! Ahead of the server is L3 Switch. > > > -- > Polytropon > Magdeburg, Germany > Happy FreeBSD user since 4.0 > Andra moi ennepe, Mousa, ... -- Member - Liberal International This is doctor@@nl2k.ab.ca Ici doctor@@nl2k.ab.ca Yahweh, Queen & country!Never Satan President Republic!Beware AntiChrist rising! http://www.fullyfollow.me/rootnl2k Look at Psalms 14 and 53 on Atheism God is dead! Yahweh lives! Jesus his only begotten Son is the Risen Saviour!!home | help
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