Date: Fri, 15 May 2015 11:40:44 -0400 From: John Baldwin <jhb@freebsd.org> To: freebsd-current@freebsd.org Subject: Re: Deja vu: panic in hdaa_coonfigure() for i386, but not amd64 -- again Message-ID: <3725154.XnIHrZucd0@ralph.baldwin.cx> In-Reply-To: <20150509142751.GV1158@albert.catwhisker.org> References: <20150509142751.GV1158@albert.catwhisker.org>
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On Saturday, May 09, 2015 07:27:51 AM David Wolfskill wrote: > Ref. <http://docs.FreeBSD.org/cgi/mid.cgi?20150415134515.GQ1224>; -- > similar symptoms. And again, I captured screenshots on a phone, but > FreeBSD doesn't seem to recognize the (USB-attached) phone as something > that might act like a file system (I guess; I'm a bit new to > "smartphones"). > > In this case, my starting-point was r282623; sources were updated to > r282676. I was able to update from: > > FreeBSD g1-254.catwhisker.org 11.0-CURRENT FreeBSD 11.0-CURRENT #55 r282623M/282623:1100072: Fri May 8 05:40:49 PDT 2015 root@g1-254.catwhisker.org:/common/S3/obj/usr/src/sys/CANARY amd64 > > to > > FreeBSD g1-254.catwhisker.org 11.0-CURRENT FreeBSD 11.0-CURRENT #56 r282676M/282676:1100073: Sat May 9 05:50:15 PDT 2015 root@g1-254.catwhisker.org:/common/S3/obj/usr/src/sys/CANARY amd64 > > without incident, but the update from: > > FreeBSD g1-254.catwhisker.org 11.0-CURRENT FreeBSD 11.0-CURRENT #1590 r282623M/282623:1100072: Fri May 8 06:40:11 PDT 2015 root@g1-254.catwhisker.org:/common/S4/obj/usr/src/sys/CANARY i386 > > was only able to build; the panic occurs before we've found any disks, > so I can't get a crash dump. I do have a kdb prompt, though, so if > someone has a suggestion for something to check, please let me know. > (Mind, reading email will be rather awkward while the laptop is exploring > the mysteries of a panic, so that might be worth bearing in mind.) > > Just prior to the bactrace, I see: > ... > hdaa1: 30 411111f0 15 0 Speaker None 1/8 Rear > Kernel page fault with the following non-sleepable locks held: > exclusive sleep mutex hdac1 (HDA driver mutex) r = 0 (0xcfef... > src/sys/dev/sound/pci/hda/hdaa.c:1571 > > The most recent relevant entries in the backtrace are: > hdaa_configure() > hdaa_attach() > device_attach() > bus_generic_attach() > hdacc_attach() > device_attach() > bus_generic_attach() > hdac_attach2() > run_interrupt_driven_config_hooks() > boot_interrupt_driven_config_hooks() > mi_startup() > begin() > > The panic message is "fatal trap 12: page fault while in kernel mode" > ... > fault code = supervisor read, page not present > ... > current process = 0 (swapper) > ... > Stopped at ... = hdaa_configure+0x14af: movb 0x3,%dl Can you do 'l *hdaa_configure+0x14af' in gdb against the kernel.debug? Perhaps set 'hint.hdac.0.disabled=1' at the loader prompt as a temporary workaround to boot if needed? -- John Baldwin
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