Date: Wed, 17 Mar 2004 23:43:24 +0100 From: Wilko Bulte <wkb@freebie.xs4all.nl> To: John Baldwin <jhb@FreeBSD.org> Cc: alpha@FreeBSD.org Subject: Re: Testers Needed!! Message-ID: <20040317224324.GA80099@freebie.xs4all.nl> In-Reply-To: <200403171122.31121.jhb@FreeBSD.org> References: <200403121543.03123.jhb@FreeBSD.org> <20040316164849.GA71626@freebie.xs4all.nl> <20040317072801.GA75715@freebie.xs4all.nl> <200403171122.31121.jhb@FreeBSD.org>
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On Wed, Mar 17, 2004 at 11:22:31AM -0500, John Baldwin wrote: > On Wednesday 17 March 2004 02:28 am, Wilko Bulte wrote: > > On Tue, Mar 16, 2004 at 05:48:49PM +0100, Wilko Bulte wrote: > > > On Tue, Mar 16, 2004 at 10:59:04AM -0500, John Baldwin wrote: > > > > On Tuesday 16 March 2004 01:57 am, Wilko Bulte wrote: > > backtrace() at backtrace+0x2c^M > > witness_checkorder() at witness_checkorder+0x6c0^M > > _mtx_lock_flags() at _mtx_lock_flags+0x9c^M > > obj_alloc() at obj_alloc+0x58^M > > slab_zalloc() at slab_zalloc+0xcc^M > > uma_zone_slab() at uma_zone_slab+0x108^M > > uma_zalloc_internal() at uma_zalloc_internal+0x5c^M > > uma_zalloc_arg() at uma_zalloc_arg+0x418^M > > swp_pager_meta_build() at swp_pager_meta_build+0x148^M > > swap_pager_putpages() at swap_pager_putpages+0x380^M > > default_pager_putpages() at default_pager_putpages+0x1c^M > > vm_pageout_flush() at vm_pageout_flush+0x1e0^M > > _end() at 0xfffffc003fade020^M > > prologue botch: displacement 16^M > > panic: > > > > Machine seems to have locked up solid, I cannot get back to the console, > > does not react to a break. It does respond to ping's however. > > Hmm, well, that LOR is a known bogus one. It seems that ddb panic'd trying to > do the backtrace though (tracing off of _end is usually a bad sign). Can you > reproduce any of these problems if you test under load w/o the preemption > patch? With the patch still in I just got: db> trace Debugger() at Debugger+0x38 __panic() at __panic+0x228 sleepq_timeout() at sleepq_timeout+0x10c softclock() at softclock+0x228 ithread_loop() at ithread_loop+0x1a4 fork_exit() at fork_exit+0x100 exception_return() at exception_return --- root of call graph --- db> Sofar I seem to have a set of different footprints. -- Wilko Bulte wilko@FreeBSD.org
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