system slowdown - vnode related
mvh at ix.netcom.com
Wed May 21 10:19:43 PDT 2003
I woke up to a frozen box this morning - it froze up a few more times
before I got a handle on it.
Basically, the box runs idle but refuses to do disk IO, or does it
Top shows processes stuck in 'ffsvget', 'inode', and 'vlruwk' state.
I can get the box responsive again by setting sysctl
kern.maxvnods=100000. It starts up with kern.maxnodes=36079. I don't
know yet if this is a 'fix' - I wanted to send this mail out before
the box froze again.
I can reliably get the box in to this state by doing 'find /'. I do
have a lot of files on the disk, and a things like squid and postgres
that do a lot of file i/o, but I don't recall this happening before
this week. I don't find anything in 'tuning' about bumping up vnodes,
but I do see sporadic reports on a google group search - searching for
Anybody run into this before?
- Mike H.
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