Date: Thu, 24 Apr 2003 22:50:32 -0400 (EDT) From: Andrew Gallatin <gallatin@cs.duke.edu> To: Fred Clift <fclift@verio.net> Cc: freebsd-alpha@freebsd.org Subject: Re: fxp unaligned access Message-ID: <16040.41592.881674.785194@grasshopper.cs.duke.edu> In-Reply-To: <20030424170745.F69705-100000@vespa.dmz.orem.verio.net> References: <20030424222225.GM21011@elvis.mu.org> <20030424170745.F69705-100000@vespa.dmz.orem.verio.net>
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Fred Clift writes: > On Fri, 25 Apr 2003, Maxime Henrion wrote: > > > > > Can you, in gdb, go to the fxp_add_rfabuf() frame (use the frame # > > command) and try this : > > > > p sc > > p rfa > under the circumstances -- but I'll try :) The other option would be to > build without fxp in the kernel and see if loading the module has the same > effect. > Don't bother to try to get a crashdump, it won't work on a trap anyway. It will only work on an explicit panic. BTW, from your original message: ) fatal kernel trap: ) ) trap entry = 0x4 (unaligned access fault) ) faulting va = 0xfffffe00004b780e ) opcode = 0x28 ) register = 0x1 ) pc = 0xfffffc00003bb180 ) ra = 0xfffffc00003bb13c ) sp = 0xfffffc00008639a0 ) usp = 0x0 ) curthread = 0xfffffc0000725ea8 ) pid = 0, comm = swapper ) ) Stopped at fxp_add_rfabuf+0x80: zapnot t0,#0xf3,t0 <t0=0x10> ) db> t ) fxp_add_rfabuf() at fxp_add_rfabuf+0x80 ) fxp_attach() at fxp_attach+0xd7c ) device_probe_and_attach() at device_probe_and_attach+0xc8 ) bus_generic_attach() at bus_generic_attach+0x28 ) <..> Isn't htole16 just supposed to be a cast to (u_int16_t) on alpha? It might be interesting to try just using the cast.. Drew
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