LiveCD Problems
Matthew Dillon
dillon at apollo.backplane.com
Sat Jul 3 10:41:26 PDT 2004
:Additionally, I noticed a get a livelock message quite frequently on
:'intr 5' limiting it to 20000hz because it's usually at 96xxxhz.
What's on interrupt 5? vmstat -i and/or the saved dmesg output
(/var/run/dmesg.boot) should tell you.
It's quite possible for firewire or GigE to generate more then
50,000 interrupts/sec. I definitely need to adjust the
default based on available cpu power or perhaps even on % cpu
use by the interrupt in question. The code in there now is a
stopgap to 'save' the machine from interrupt related lockups.
The limits can be increased with a sysctl but you should first
make sure that the interrupt rate is legitimate.
:Additionally, I have two CD drives and noticed that I can only boot from
:the 1st once successfully. Trying to boot from the second one causes a
:panic trying to mount the root file system.
:
:Any way I can help you figure out why the first problem is occurring?
I will add a second CD on my secondary slave and try to reproduce
the problem.
-Matt
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