Date: Fri, 15 May 2009 17:36:18 +0200 From: Martin <nakal@web.de> To: John Baldwin <jhb@freebsd.org> Cc: freebsd-stable@freebsd.org Subject: Re: kernel trap 12 with interrupts disabled [bge0 on 7.2R] Message-ID: <20090515173618.78cca743@zelda.local> In-Reply-To: <200905150815.19452.jhb@freebsd.org> References: <1696198956@web.de> <200905140916.40594.jhb@freebsd.org> <20090514191026.0a90dbfc@zelda.local> <200905150815.19452.jhb@freebsd.org>
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Hi John, one more thing that I noticed. It seems that the netmask passed to the procedure rt_maskedcopy is invalid. Cannot dereference the pointer. I went one frame up and I've looked at the control flow of the parent routine rtrequest1_fib. This routine passes the netmask, but before it does that it went with req=11 (RTM_RESOLVE) through this piece of code: /usr/src/sys/net/route.c:985 case RTM_RESOLVE: if (ret_nrt == NULL || (rt = *ret_nrt) == NULL) senderr(EINVAL); ifa = rt->rt_ifa; /* XXX locking? */ flags = rt->rt_flags & ~(RTF_CLONING | RTF_STATIC); flags |= RTF_WASCLONED; gateway = rt->rt_gateway; if ((netmask = rt->rt_genmask) == NULL) flags |= RTF_HOST; goto makeroute; Is this a locking problem? -- Martin
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