Date: Thu, 24 Sep 2009 15:16:32 +0200 From: Attilio Rao <attilio@freebsd.org> To: "Daniel O'Connor" <doconnor@gsoft.com.au> Cc: freebsd-stable@freebsd.org Subject: Re: 8.0-RC1 panic attaching ppc Message-ID: <3bbf2fe10909240616k18de2bf8mbadb7526a46f1f58@mail.gmail.com> In-Reply-To: <200909241455.32216.doconnor@gsoft.com.au> References: <200909232322.51060.doconnor@gsoft.com.au> <3bbf2fe10909230654g2030b18aq8a93e26a7789b06f@mail.gmail.com> <200909241455.32216.doconnor@gsoft.com.au>
next in thread | previous in thread | raw e-mail | index | archive | help
2009/9/24 Daniel O'Connor <doconnor@gsoft.com.au>: > On Wed, 23 Sep 2009, Attilio Rao wrote: >> 2009/9/23 Daniel O'Connor <doconnor@gsoft.com.au>: >> > If I enable the parallel port on this Gigabyte MA7785GM-US2H I get >> > a trap 12 when booting up. >> > >> > I forgot to take a picture of it at the time but I should be able >> > to reproduce it tomorrow. >> > >> > Has anyone seen anything before? (a quick google showed nothing). I >> > did not see it on 7.2(ish) on the same hardware. >> >> Are you able to enable KDB in your kernel config and return a >> backtrace here? > > Yes, here it is.. > > pmap_extract() at pmap_extract+0x13a > isa_dmarangecheck() at isa_dmarangecheck+0x7a > isa_dma_init() at isa_dma_init+0xda > ppc_isa_attach() at ppc_sa_attach+0x40 > device_attach() at device_attach+0x69 > bus_generic_attach() at bus_generic_attach+0x1a > acpi_attach() at acpi_attach+0x9f8 > > (there's more but I imagine the above is probably sufficient). > > I took pictures, they are here > http://www.gsoft.com.au/~doconnor/SNC00111.jpg > http://www.gsoft.com.au/~doconnor/SNC00112.jpg > > If I put the parallel port in EPP mode then it works, I presume that's > because it doesn't require a DMA channel whereas ECP doesn't. I haven't > enumerated the possibilities though :) Can you try to get a kernel dump that we can analyze? You would just need to recompile the kernel with options KDB, GDB and debugging symbols. Then we can do more on that. Thanks, Attilio -- Peace can only be achieved by understanding - A. Einstein
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?3bbf2fe10909240616k18de2bf8mbadb7526a46f1f58>