On Sun, Apr 21, 2013 at 01:57:03PM +0800, Ganbold Tsagaankhuu wrote: > On Sat, Apr 20, 2013 at 11:21 PM, Konstantin Belousov > <kostik...@gmail.com>wrote: > > > On Sat, Apr 20, 2013 at 10:52:35PM +0800, Ganbold Tsagaankhuu wrote: > > > Hi, > > > > > > I'm trying to boot HEAD after updating, but unfortunately it panics with > > > following message: > > > > > > panic: kmem_suballoc: bad status return of 3. > > > > > > I was only able to get image of the panic. > > > > > > http://www.mnbsd.org/ganbold/IMG_20130420_222353-2.jpg > > > > > > Does anybody see same panic booting on i386 lately? > > > Tried clang, and it panics also. > > > > How much memory do you have ? > > Do you have any tunables in the loader.conf ? > > > > Following settings caused the panic: > > vm.kmem_size="999M" > vm.kmem_size_max="999M" I cannot imagine how this could work earlier as well, except by chance.
> > Whether it is regression or not in previous version of kernel (r244046) it > didn't panic on boot. > Seems no information on UPDATING either. Do you propose to enumerate all non-working or panic-provoking settings in loader.conf ? Why did you set this value at all ? KVA on i386 is limited to slightly less then 1GB, where all the kernel maps must be instantiated. Kernel uses the value of the tunable vm.kmem_size literally, except it makes a mild attempt to prevent foot-shooting by capping kmem_size to 2 * physical memory size. You neglected to answer how much memory is installed on your machine, but I suspect you have enough so that overblown kmem_map cannot coexists with other kernel VA consumers.
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