I've just done my first CVSup since the 3-Stable split, using RELENG_3.
This was after Matt D. committed a couple of VM fixes back to the 3-S branch.
I have also enabled 32-bit DMA on my drive at the same time (amazing
what you can learn from reading LINT - and read speed went from 3Mb/s to
12Mb/s).
Whatever it was, it has seemingly fixed the problem I was having with
softupdates-related system hangs. Previously, if I enabled softupdates on
/usr/src, it would hang within a few seconds doing "cd /usr/src/games; make".
Now I have done two entire "make buildworld"s with /usr/src and /usr/obj
on the same softupdates partition with no hangs.
It's still not perfect, because every so often when I reboot I get
something like
syncing disks: 13 9 4 4 4 4 4 4 4 4 4 4 4 4 4 giving up
and I have had a panic when shutting down (something about freeing vnodes).
I'm now running with DDB and INVARIANTS so I'll try and catch something
more useful. And I'll try removing the flags from wd0 in the kernel
and see if that is the problem....
Greg,
still not quite brave enough to run softupdates on /usr or /var....
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