Date: Thu, 14 Jun 2007 14:15:41 +0200 From: Michal Mertl <mime@traveller.cz> To: gary.jennejohn@freenet.de Cc: current@freebsd.org Subject: Re: Disappearing userland output with -current Message-ID: <1181823341.28712.0.camel@genius.i.cz> In-Reply-To: <20070614131437.b6affce3.garyj@jennejohn.org> References: <20070614131437.b6affce3.garyj@jennejohn.org>
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Gary Jennejohn píše v čt 14. 06. 2007 v 13:14 +0200: > I'm observing a strange problem with a -current i386 box (with SMP) > built on Wed Jun 13 20:34:11 CEST 2007 after a cvsup and haven't seen > anyone else reporting it. > > The problem occurs whenever the output from the boot phase is garbled, > almost always because this output: > SMP: AP CPU #1 Launched! > messes up this output (or similar): > cd0: cd present [2222160 x 2048 byte records] > > The symptom is that _all_ userland output disappears, which makes it > rather difficult to do anything. I'm forced to reboot the box until > the boot output isn't trashed. > > If I break into ddb then all the output becomes visible, but leaving > ddb then results in no userland output appearing again. > > I noticed this problem for the very first time after gcc42 was imported. > In all the years I've been using FreeBSD (since 1993) I've never seen > any behavior like this before. This leads me to strongly suspect some > fallout from gcc42. > > Has anyone else seen this? > > --- > Gary Jennejohn / garyjATjennejohnDOTorg gjATfreebsdDOTorg > garyjATdenxDOTde > Just a "me too" on amd64 SMP.
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