On 10/24/2011 5:26 PM, A C wrote:
On 10/24/2011 14:11, Chuck Swiger wrote:
On Oct 24, 2011, at 1:58 PM, A C wrote:
It has 16 MB of RAM right now (one stick). It had 64 at one point
while I was trying to diagnose this issue. I thought I might have a
bad stick of RAM so I was testing them one by one (one stick in the
machine at a time). I didn't reinsert the other three yet. But it
doesn't matter, even with 64 MB ntpd still crashes which is what
started this whole debugging game in the first place.
If ntpd crashes, you should get a coredump which you can debug
(assuming you've setup the coredumpsize limit to permit this) and
perhaps a syslog message about a SIGSEGV, SIGBUS, or whatever.
Not if it locks the system up entirely (as in I couldn't even break out
of the kernel) which is what had been happening. Turning off the
priority on ntpd (eliminating the use of the -N flag) seems to avoid the
system lock up issue but doesn't eliminate the ntpd lockup. The process
just sat there yesterday not doing anything and bogging the machine
down. The process itself doesn't die, there's no core to dump (yet), it
just sits and sits and sits...
Besides, I wouldn't call an Xterm and Xclock anything significant in
the way of X11 clients. I'm certainly not intending to run anything
beyond those. The Xterm is for a console and the Xclock I was using
to keep an eye on the machine so I'd know if the system locked up.
If you had 64MB of RAM, then the two clients wouldn't or shouldn't
cause your system to swap. With only 16MB, however, you're sure to be
paging, and more likely to be swapping entire processes out to disk
Again, the amount of memory is a distraction from the issue because even
with the 64 MB ntpd was having problems. But, I'll install the other
three sticks this week when I have an opportunity which will mostly
eliminate swapping issues.
64MB is not a lot of RAM by today's standards. Can you install more for
testing purposes?
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