Date: Thu, 20 Nov 2003 16:43:40 -0500 From: Craig Rodrigues <rodrigc@crodrigues.org> To: John Baldwin <jhb@FreeBSD.org> Cc: current@FreeBSD.org Subject: Re: spin lock sched lock held by 0xc25a8640 for > 5 seconds Message-ID: <20031120214340.GA47393@crodrigues.org> In-Reply-To: <XFMail.20031120151729.jhb@FreeBSD.org> References: <20031120195332.GA47010@crodrigues.org> <XFMail.20031120151729.jhb@FreeBSD.org>
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On Thu, Nov 20, 2003 at 03:17:29PM -0500, John Baldwin wrote: > > Fatal trap 12: page fault while in kernel mode > > cpuid = 0; apic id = 00 > > fault virtual address = 0x6300040 > > fault code = supervisor read, page not present > > instruction pointer = 0x8:0xc083611e > > Can you do a 'l *0xc083611e' on in gdb on your kernel.debug (kgdb) l *0xc083611e 0xc083611e is in _bus_dmamap_unload (/usr/src/sys/i386/i386/busdma_machdep.c:751). 746 void 747 _bus_dmamap_unload(bus_dma_tag_t dmat, bus_dmamap_t map) 748 { 749 struct bounce_page *bpage; 750 751 while ((bpage = STAILQ_FIRST(&map->bpages)) != NULL) { 752 STAILQ_REMOVE_HEAD(&map->bpages, links); 753 free_bounce_page(dmat, bpage); 754 } 755 } -- Craig Rodrigues http://crodrigues.org rodrigc@crodrigues.org
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