Date: Sun, 13 Sep 2009 01:30:06 GMT From: Bruce Simpson <bms@incunabulum.net> To: freebsd-net@FreeBSD.org Subject: Re: kern/138666: [multicast] [panic] not working multicast through igmpproxy Message-ID: <200909130130.n8D1U6pc021189@freefall.freebsd.org>
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The following reply was made to PR kern/138666; it has been noted by GNATS. From: Bruce Simpson <bms@incunabulum.net> To: freebsd-gnats-submit@FreeBSD.org Cc: freebsd-net@FreeBSD.org Subject: Re: kern/138666: [multicast] [panic] not working multicast through igmpproxy Date: Sun, 13 Sep 2009 02:04:52 +0100 I did a quick pass over ip_mroute.c to see if I could have introduced any obvious errors during refactoring; didn't see anything obvious. The backtrace which was posted points towards a trashed rte->m pointer, assuming it's accurate and the arguments didn't get trashed on-stack. The MFC lock should be held in expire_mfc(). I'll add a lock assertion there for now. The VIF lock shouldn't be needed in this path.
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