Date: Tue, 5 Jan 2010 08:28:49 -0500 From: John Baldwin <jhb@freebsd.org> To: freebsd-current@freebsd.org Cc: "Wilkinson, Alex" <alex.wilkinson@dsto.defence.gov.au> Subject: Re: Fatal trap 12: page fault while in kernel mode [SEC=UNCLASSIFIED] Message-ID: <201001050828.49809.jhb@freebsd.org> In-Reply-To: <20100105060748.GA16239@stlux503.dsto.defence.gov.au> References: <20100105060748.GA16239@stlux503.dsto.defence.gov.au>
next in thread | previous in thread | raw e-mail | index | archive | help
On Tuesday 05 January 2010 1:07:48 am Wilkinson, Alex wrote: > This seems to be happening often to me :( > > FreeBSD 9.0-CURRENT #2 r200661: Fri Dec 18 > > Kernel page fault with the following non-sleepable locks held: > exclusive sleep mutex vm page queue free mutex (vm page queue free mutex) r = 0 > (0xc0f65280) locked @ /usr/src/sys/vm/vm_page.c:1052 > exclusive sleep mutex vm object (standard object) r = 0 (0xc207bee0) locked @ > /usr/src/sys/vm/vm_fault.c:269 > > KDB: stack backtrace: > db_trace_self_wrapper(c0c94824,e8986954,c08ceab5,c0cba8a5,10d,...) at > db_trace_self_wrapper+0x26 > kdb_backtrace(c0cba8a5,10d,ffffffff,c0f2bbfc,e898698c,...) at kdb_backtrace+0x29 > _witness_debugger(c0c96cd9,e89869a0,4,1,0,...) at _witness_debugger+0x25 > witness_warn(5,0,c0ccb229,c0df122c,c69e6d48,...) at witness_warn+0x1fd > trap(e8986a2c) at trap+0x19e > calltrap() at calltrap+0x6 > --- trap 0xc, eip = 0xc0afd732, esp = 0xe8986a6c, ebp = 0xe8986ac0 --- > vm_reserv_alloc_page(c207bee0,58a5,0,37e,c207bee0,...) at > vm_reserv_alloc_page+0x102 > vm_page_alloc(c207bee0,58a5,0,40,e8986c0c,...) at vm_page_alloc+0x25e > vm_fault(c684c1d0,2e129000,2,0,2e129000,...) at vm_fault+0x575 > trap_pfault(5,0,c0ccb229,2f0,c69e6d48,...) at trap_pfault+0x10d > trap(e8986d38) at trap+0x2d0 > calltrap() at calltrap+0x6 > --- trap 0xc, eip = 0x2834ecba, esp = 0xbfbfe454, ebp = 0xbfbfe468 --- Are you able to get a crashdump and examine it with kgdb? -- John Baldwin
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201001050828.49809.jhb>