Subject: Re: PR kern/20191, plea for fix in 1.6.2!
To: Nicolai Stevens <email@example.com>
From: Greg Oster <firstname.lastname@example.org>
Date: 11/16/2003 13:01:00
Nicolai Stevens writes:
> > Assuming you need the RAID more than you need
> > softdeps, a workaround is to just turn off softdeps.
> I would if I knew for certain it would work. The
> audit-trail of the PR suggests that it also crashes
> with softdeps disabled.
> Is there anything else tunable (sysctl's, etc..) that
> might make this problem less frequent?
Others have had luck with turning off softdeps and patching
sys/uvm/uvm_page.c so that it has:
uvmexp.reserve_kernel = 128;
uvmexp.reserve_kernel = 5;
Each case is going to be slightly different, based on RAID params,
etc., but if you're seeing lots of panics, it's probably worth the
effort to try it.