Date: Tue, 24 Dec 2013 23:19:21 +0100 From: Marc Santhoff <M.Santhoff@web.de> To: FreeBSD Stable Mailing List <freebsd-stable@freebsd.org> Subject: Re: Graphical console in stable/10 stuck on heavy writing Message-ID: <1387923561.4135.5.camel@puma.das.netz> In-Reply-To: <CAJ-Vmo=ZpBO10z_Ugea3LDDzcf0oj3xxjGNaoGKBw2DOXX9FSQ@mail.gmail.com> References: <52B78808.1090802@ijs.si> <CAJ-Vmo=ZpBO10z_Ugea3LDDzcf0oj3xxjGNaoGKBw2DOXX9FSQ@mail.gmail.com>
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On So, 2013-12-22 at 21:29 -0800, Adrian Chadd wrote: > I see this when the kernel is outputting debugging .. the console can > quickly lock up exactly how you describe. I've never figured out why > though. :( > > > -a > > On 22 December 2013 16:47, Mark Martinec <Mark.Martinec+freebsd@ijs.si> wrote: > > FreeBSD amd64, recent stable/10: > > > > When running some task on a graphical console window > > and that task writes lots of output to a console, the > > console gets stuck after some time (like 20 minutes), > > output stops, keyboard appears unresponsive, alt-ctrl-Fn > > is unable to switch consoles - but the machine seems > > otherwise sane: I can log in over ssh, file system and > > processes are healthy, CPU not busy. Long ago I had to fight a similar problem when using FreePascal on FreeBSD - must have been a stable OS version of 2004 or so. The solution was to switch the file descriptor in use from non blocking to blocking i/o. IIRC this held true for stdout and stderr. I have no idea what was going on and if that was a freebsd or fpc issue, though. HTH anyhow, Marc -- Marc Santhoff <M.Santhoff@web.de>
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