Date: Wed, 15 May 2002 17:46:18 -0400 (EDT) From: Andrew Gallatin <gallatin@cs.duke.edu> To: Rich Bud <rbud@fortean.com> Cc: freebsd-alpha@FreeBSD.ORG Subject: Re: natd sig 10 under stable Message-ID: <15586.55082.170680.378288@grasshopper.cs.duke.edu> In-Reply-To: <20020515160407.T28044-100000@nemesis.fortean.com> References: <20020515160407.T28044-100000@nemesis.fortean.com>
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Rich Bud writes: > BTW, Craig Burgess posted about a sig 10 in natd back in february under > different conditions. I didn't see any replies, so i'm guessing this is > the same problem... Probably, but this is much more useful information that Craig was ever able to supply. With your information, it may be possible to diagnose & fix the problem. > Program received signal SIGBUS, Bus error. > 0x120008614 in AliasHandleQuestion (count=1, q=0x11feb911, pmax=0x11feb926 "", nbtarg=0x11feb838) at /usr/src/lib/libalias/alias_nbt.c:290 > 290 switch ( ntohs(q->type) ) { > (gdb) ptype q > type = struct { > u_short type; > u_short class; > } * > q = (NBTNsQuestion *) 0x11feb911, q->class = 1, q->type = 0 > This address is unaligned. Is one of machdep.unaligned_sigbus == 1, machdep.unaligned_fix == 0 true? (or the uac equivalent) If not, perhaps the unaligned fixup handler needs to be enhanced to handle a new sort of instruction. Can you disassemble the code at the faulting PC & see what instruction generated the access, please? (or enable unaligned printing via uac -p in the shell which starts natd). Thanks, Drew To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message
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