I've adjusted MAXUSERS to 128 on my heavily loaded PIIs and the crashes
have not re-occurred for 24 hours now. (Had to adjust NMBCLUSTERS up,
though)
The panics were happening every 5-8 hours like clockwork prior to this.
I believe that these crashes are caused by heavy network traffic, not
-Original Message-
From: Matthew Dillon [mailto:dil...@apollo.backplane.com]
:What's the chance that our kernel adaptations for PIIs
:is partly at fault?
:
:-Troy Cobb
: Circle Net, Inc.
: http://www.circle.net
With what config? Have you tried reducing
I'm seeing different responses depending on hardware.
On regular Pentium 166 machines, I almost NEVER get
a panic. On brand-new Pentium II 350s, I get a panic
every 6-9 hours. This happens when both kernels are
configured the same for maxusers. It happens when
both machines are under the same
I've been trying to track down a regular, but not
manually reproducible crash in 3.0-BETA (19990205).
I can't get a crashdump due to a DSCHECK negative
number bug. I think my swap space of 3+GB is
too large for it. So, I've been having it send
me the output of vmstat -m every 15 minutes to
try
Bill,
Your patch worked perfectly. THANK YOU!
By the way, I'd be happy to fedex a 3c905B to
you for your use in testing these sorts of things
if that would be helpful. We have a fairly large
commitment to this card now (40+) and I'd do this
happily to facilitate continuing performance
Can someone please give me a short guide
on how to track down a fatal double fault?
System is 3.0-19990205-STABLE, and I've written
down the fault info.
Thanks,
-Troy Cobb
Circle Net, Inc.
http://www.circle.net
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The machine is running a custom kernel, but nothing
very unusual. My instinct is that it may be related to
something with the 3c905B 3COM cards that I reported
earlier, I'm trying with Intel EtherExpresses right now
and getting no fault problems.
The double-fault does not occur consistently,
So a double-fault is always a kernel stack problem?
I find it suspicious that this same machine
also had trouble with the 3c905B flaking out --
dropping packets during an ifconfig alias, and
sometimes never reactivating the interface
according to what tcpdump shows.
The 3c905B problem repeates
This happens in -current and -stable.
Machine:
CPU: Pentium II (quarter-micron) (350.80-MHz 686-class CPU)
Origin = GenuineIntel Id = 0x652 Stepping=2
Features=0x183fbffFPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,
CM
OV,PAT,PSE36,MMX,b24
real memory = 402653184 (393216K bytes)
