Date: Thu, 04 Feb 1999 11:04:59 -0800 From: "Reginald S. Perry" <perry@zso.dec.com> To: Alfred Perlstein <bright@hotjobs.com> Cc: "Reginald S. Perry" <perry@rust.zso.dec.com>, Jeroen Ruigrok/Asmodai <asmodai@wxs.nl>, Andrew Gordon <arg@arg1.demon.co.uk>, current@FreeBSD.ORG, Matthew Dillon <dillon@apollo.backplane.com> Subject: Re: 4.0-Current, netscape halts system Message-ID: <199902041905.LAA10608@yakko.zso.dec.com> In-Reply-To: Message from Alfred Perlstein <bright@hotjobs.com> of "Tue, 26 Jan 1999 03:07:33 EST." <Pine.BSF.4.05.9901260259530.55154-100000@bright.fx.genx.net>
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I finally got everything set up as far as having my vt220 being my
console and being able to drop into DDB by hitting the break key.
It turns out that as part of my setup I was using MFS for /tmp. When I
did a CVSup and make world on the 29th, I decided to comment out the
MFS mount point. I have not had a hang since then.
So the question is are there known problems with MFS?
-Reggie
>"Alfred" == Alfred Perlstein <bright@hotjobs.com> writes:
> On Mon, 25 Jan 1999, Reginald S. Perry wrote: I have been having
> these X lockups with the linux netscape 4.5 running. I may have
> exacerbated it when I installed the linux realplayer and macromedia
> flash plugins.
>
> I would like to have a methodology to help debug this, but I have
> just this one system to use as the debug system. I do also have a
> vt220 which I could set up if that would help.
>
> The key here is that for me it locks the system up completely. I
> cannot telnet in remotely and the ctrl-alt-esc key sequence does not
> work so its unclear to me how to debug this. Tell me what I would
> need to help debug it, and I will try to be of some help. Ill attach
> my dmesg output.
>
> -Reggie
>
> options DDB options BREAK_TO_DEBUGGER #a BREAK on a comconsole goes
> to options INVARIANTS options INVARIANT_SUPPORT
> device sio0 at isa? port "IO_COM1" tty irq 4 vector siointr device
> sio1 at isa? port "IO_COM2" flags 0x30 tty irq 3 vector siointr
> my 'sio2' is setup with special flags to make it always be the
> consol. look in lint for more hints.
> when the machine locks: send a break: if on vt220: F5 using tip/cu:
> ~%
> take a look at 'ps' and copy it down to see what's up.
> you may also want to enable crash dumps, look in rc.conf and set
> your 'dumpdevice' to your swap partition. then you can type 'panic'
> and get a core image of the system to look at.
> on the next reboot you can 'kdb' the kernel and then type 'bt' to
> get a backtrace.
> i have a vt320 for vanity purposes :), but i suggest you use a
> serial line into an xterm on another box if you can, ddb isn't the
> nicest interface and being able to cut and paste in and out of ddb
> in an xterm is nice.
> -Alfred
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