[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]
NetBSD domU crashing Debian5 dom0 with NMBCLUSTERS=4096
I tested running Nagios in a NetBSD5 domU on a Debian5 dom0 (this is
because our dom0s have to have bonded nics for redundance and this seems
still to be a problem with NetBSD 5, as I understood).
We run several NetBSD 5 domUs on Debian5 dom0s, that is working fine so
far with the standard NetBSD domU kernel.
But with the Nagios VM I ran into problems with "No buffer space
available", so I recompiled the NetBSD domU kernel with NMBCLUSTERS = 4096.
This kernel repeatedly crashed the Debian dom0 kernel; I tested that on
2 different servers (one dual PIII, where the crash happened within an
hour, and one Dual Xeon 3.2 GHz, where the crashes took a few hours to
At the moment this is simply a coincidence (as the Debian dom0 kernels
crash every few weeks anyway), but in the case of the self built domU
kernel the dom0 kernel crashes looked different: no error output, just a
After disabling the self compiled kernel everything went back to normal.
First question of course is: Is it technically possible that the dom0
kernel crashes are related to the NMBCLUSTERS parameter in the domU kernel?
Next one of course: Is this a known problem? Is there a workaround? I
would very much love to test NetBSD as domU for high load use.
Main Index |
Thread Index |