Date: Mon, 30 Apr 2007 13:36:41 -0400 From: John Baldwin <jhb@freebsd.org> To: Lars Engels <lars.engels@0x20.net> Cc: freebsd-current@freebsd.org Subject: Re: cardbus not powered when ACPI is enabled Message-ID: <200704301336.41897.jhb@freebsd.org> In-Reply-To: <20070430170204.GA88409@e.0x20.net> References: <20070423193112.GU46992@e.0x20.net> <200704301208.59312.jhb@freebsd.org> <20070430170204.GA88409@e.0x20.net>
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On Monday 30 April 2007 01:02:04 pm Lars Engels wrote:
> On Mon, Apr 30, 2007 at 12:08:58PM -0400, John Baldwin wrote:
> > On Friday 27 April 2007 04:57:52 pm Lars Engels wrote:
> > > On Thu, Apr 26, 2007 at 05:45:50PM -0400, John Baldwin wrote:
> > >
> > > I also encountered occasional "Panic: failed to create swap zone" when
> > > CPU #1 was launched just before the disks get mounted. Could that be
> > > related?
> >
> > Ok, so for the default setup, the only problem is that panic? That sounds
> > like running out of kvm possibly as the swapzone is preallocated from
kmem.
> > The system may be allocating too much for the swapzone, in which case you
can
> > explicitly set the size via the 'kern.maxswzone' tunable. One possible
> > formula for this is:
> >
> > maxswzone = (swap + 1024) * 1024 * 9 / 2
> >
> > Where 'swap' is the amount of swap in megabytes.
>
> I added kern.maxswzone=13953024 (2004 MB swap) to loader.conf but after
> a reboot the oid is still unknown. Do I need to set it somewhere else?
Unfortunately, it's just a tunable, there isn't a sysctl to see the current
setting. You can, however, look at the 'vmstat -z' output. You can figure
out the current swap zone size by multiplying the size and limit columns
for 'SWAPMETA'. Something like this:
vmstat -z | awk '/^SWAPMETA/ { printf "%d\n", $2 * $3 }' | bc
--
John Baldwin
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