From: Nix <nix@esperi.org.uk>
To: Nick Craig-Wood <nick@memset.com>
Cc: Jeff Dike <jdike@addtoit.com>,
user-mode-linux-devel@lists.sourceforge.net
Subject: Re: [uml-devel] uml-patch-2.4.26-2
Date: Fri, 30 Jul 2004 13:08:15 +0100 [thread overview]
Message-ID: <878yd1itow.fsf@amaterasu.srvr.nix> (raw)
In-Reply-To: <20040730074833.GA22488@craig-wood.com> (Nick Craig-Wood's message of "Fri, 30 Jul 2004 08:48:33 +0100")
On Fri, 30 Jul 2004, Nick Craig-Wood said:
> I'm having trouble getting this to run stably. On a Fedora core 2
> image it locks up with 100% CPU after about 12 hours
> normally.
I think this is caused the patch to use gettimeofday(), which breaks if
time ever moves backwards. Lots of other things break if time moves
backwards, too, but most don't care if it moves backwards by only a
second or so. UML does care.
To work around it, avoid moving time backwards (ntpd and ntpdate both
have switches to avoid this and always use adjtimex() instead.)
--
`The copyright file is for everyone. That we make it available in
plain-text, uncompressed form rather than in spinning, throbbing
OpenGL-rendered 3D text over a thumping dance music soundtrack is a
feature, not a bug.' --- Branden Robinson
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next prev parent reply other threads:[~2004-07-30 12:08 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-16 20:19 [uml-devel] uml-patch-2.4.26-2 Jeff Dike
2004-07-30 7:48 ` Nick Craig-Wood
2004-07-30 12:08 ` Nix [this message]
2004-07-30 14:46 ` Nick Craig-Wood
2004-07-30 17:02 ` Adam Heath
2004-07-30 18:49 ` Jeff Dike
2004-07-30 19:14 ` Adam Heath
2004-07-30 17:36 ` Jeff Dike
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