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Date:      Mon, 16 Nov 1998 12:14:46 -0800 (PST)
From:      Doug White <dwhite@resnet.uoregon.edu>
To:        Kevin Day <toasty@home.dragondata.com>
Cc:        questions@FreeBSD.ORG
Subject:   Re: MediaGX and calcru: negative time
Message-ID:  <Pine.BSF.4.03.9811161212540.17775-100000@resnet.uoregon.edu>
In-Reply-To: <199811161830.MAA16210@home.dragondata.com>

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This probably belongs on -questions since it's not related to -current ..

On Mon, 16 Nov 1998, Kevin Day wrote:

> FreeBSD 2.2.7-RELEASE #0: Wed Oct 21 16:22:35 CDT 1998
>     devel@kevin1.touchmaster:/usr/src/sys/compile/DEVEL
> CPU: Cyrix GXm (0.00-MHz 586-class CPU)
>   Origin = "CyrixInstead"  Id = 0x540  DIR=0x3346  Stepping=3  Revision=3
> real memory  = 63963136 (62464K bytes)
> avail memory = 60252160 (58840K bytes)

okay...

> wdc0: unit 0 (wd0): <QUANTUM FIREBALL SE3.2A>, multi-block-16
> wd0: 3079MB (6306048 sectors), 6256 cyls, 16 heads, 63 S/T, 512 B/S
> wdc1 at 0x170-0x177 irq 15 on isa
> wdc1: unit 0 (atapi): <FX320S/q01>, removable, intr, dma, iordis
> wcd0: 5512Kb/sec, 256Kb cache, audio play, 255 volume levels, ejectable tray
> wcd0: no disc inside, unlocked

Nothing out of the ordinary there...

> calcru: negative time: -6644 usec
> pid 8197 (dl), uid 0: exited on signal 11 (core dumped)

dl is one of your programs?  Backtrace the core dump and see what made it
fall over.

> calcru: negative time: -6644 usec
> pid 8211 (dl), uid 0: exited on signal 11 (core dumped)
> calcru: negative time: -6644 usec
> pid 8211 (dl), uid 0: exited on signal 11 (core dumped)
> calcru: negative time: -6644 usec
> pid 8211 (dl), uid 0: exited on signal 11 (core dumped)
> /kernel: file: table is full   
> syslogd: /var/run/utmp: Too many open files in system

dl was probably leaking file descriptors ...

> Now, since Cyrix is supporting us with this product, are there any questions
> I can ask them that may shed some light?

The calcru is probably related, but I doubt your crashes are.  You'll have
to analyse the core.

> It appears that the problem is brought out by lots of IDE access. The IDE
> interface is done internaly, in the CPU. Could timeouts/delays in the IDE
> side be slowing the clock somehow?

Most likely ..

Doug White                               
Internet:  dwhite@resnet.uoregon.edu    | FreeBSD: The Power to Serve
http://gladstone.uoregon.edu/~dwhite    | www.freebsd.org


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