Date: Fri, 21 Dec 2012 17:38:08 +0100 From: Hans Petter Selasky <hselasky@c2i.net> To: freebsd-current@freebsd.org Cc: Volodymyr Kostyrko <c.kworr@gmail.com>, Dimitry Andric <dim@freebsd.org>, Andriy Gapon <avg@freebsd.org> Subject: Re: clang compiled kernel panic when mounting zfs root on i386 Message-ID: <201212211738.08781.hselasky@c2i.net> In-Reply-To: <50D2F3FE.1000509@gmail.com> References: <50b37d46.8584440a.735c.ffffb4e6@mx.google.com> <50CF9AA9.1030808__28729.3355250315$1355782864$gmane$org@FreeBSD.org> <50D2F3FE.1000509@gmail.com>
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On Thursday 20 December 2012 12:18:22 Volodymyr Kostyrko wrote: > 18.12.2012 00:20, Andriy Gapon: > > It's been already mentioned many times that ZFS works much better on > > amd64. It's up to a (potential) user to understand limitations of i386 > > and to decide whether to use ZFS, in what situations and how. > > > > You may want to consider using KSTACK_PAGES=4 in your kernel > > configuration. > > For last two fays my system seems stable on kernel compiled with > KSTACK_PAGES=4 and WITH_CLANG_IS_CC. Hi, I've built a 10-current i386 kernel as of today, and I see double fault when USB audio is allocating memory. Anyone knows why? I'm on #bsdusb on EF-net for 30 more minutes if someone has any quick suggestions. kdb_enter() vpanic() panic() dblfault_handler() vm_map_lookup() vm_fault_hold() vm_fault() vm_fault_wire() vm_map_wire() kmem_alloc_attr(xxx, 0x4000,2,0,0xffffffff) bus_dmamem_alloc() usb_pc_alloc_mem() --HPS
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