On Fri, Jan 07, 2005 at 03:02:19PM -0500, Michael wrote:
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> Hello,
> 
> I'm running 2.99.12 on an Ultra 10, my problem is this:
> The box was compiling Mozilla while running XFree, xscreensaver, 
> gkrellm and gcvs, I left it unattended for a while ( 1 hour or so ), 
> when I moved the mouse to exit the screensaver it exited just fine and 
> the Xserver started redrawing everything, rather slowly, with gkrellm 
> showing high paging activity. When it tried to redraw gcvs ( which 
> happened to be the biggest window, took up almost the whole screen ) I 
> got a deadlock. Probably a kernel panic since the machine stopped 
> responding to pings and the disk activity ended after a couple of 
> seconds.
> First I thought it's a problem in the Xserver ( like the recently fixed 
> one where pages containing code weren't marked executable ) but it's 
> not only the Xserver crashing, it's the whole thing. Are there any 
> known problems in NetBSD's memory management on sparc64? It only 
> happens when there's a big window to redraw ( xterms and other smallish 
> windows don't seem to trigger the problem ) and a lot of paging going 
> on while doing so. Apparently the window content or the process 
> responsible for it has was swapped out to disk, the problem doesn't 
> occur when the screensaver ran for only a minute or so. Or when there's 
> nothing memory-intensive going on.

Might fit to 24648/27023. Do you have anything multi-threaded among your
long-running applications?

> The crash seemed to be caused by very high paging activity, although I 
> couldn't reproduce it without X yet.
> 

Time for serial console? Or someone needs to fix kernel coredump.

	Andrey