On Wed, Jun 12, 2013 at 1:39 PM, Dimitry Andric <dim_at_freebsd.org> wrote: > On Jun 12, 2013, at 22:30, Alexander Leidinger <Alexander_at_Leidinger.net> wrote: >> I try to update from a pre-clang world (r242511M) to "now" (r251618M). >> The resulting kernel boots, but while starting some jails (with ezjail >> from ports, so fairly late in the boot process) I get a kernel panic >> (IIRC zfs trying to access page 0). > > If you are running on i386, it might be a stack overflow? Try > increasing the stack a little, it might help in that case. > For i386 I'd be more inclined to suspect KVA exhaustion. For non-PAE, as a shot in the dark, increase options KVA_PAGES=384 .. the default is 256 for PAE. that increases kernel KVA from 1GB to 1.5GB. For a PAE system, this number is multipled by 2, so a corresponding change is 512 -> 768. This is just a shot in the dark. If this is amd64, then never mind, KVA_PAGES is meaningless there. -- Peter Wemm - peter_at_wemm.org; peter_at_FreeBSD.org; peter_at_yahoo-inc.com; KI6FJV On IRC, talking about C++: <BigKnife> I think that it is a good thing I will never meet Bjarne on a street <BigKnife> cause really, I don't want to end up in prison or anythingReceived on Wed Jun 12 2013 - 20:11:00 UTC
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