From owner-freebsd-stable Mon Nov 15 9:13:24 1999 Delivered-To: freebsd-stable@freebsd.org Received: from smtp1.vnet.net (smtp1.vnet.net [166.82.1.31]) by hub.freebsd.org (Postfix) with ESMTP id 66B6F14BF1 for ; Mon, 15 Nov 1999 09:13:22 -0800 (PST) (envelope-from rivers@dignus.com) Received: from dignus.com (ponds.vnet.net [166.82.177.48]) by smtp1.vnet.net (8.9.1a/8.9.1) with ESMTP id MAA01564 for ; Mon, 15 Nov 1999 12:13:20 -0500 (EST) Received: from lakes.dignus.com (lakes.dignus.com [10.0.0.3]) by dignus.com (8.9.2/8.8.5) with ESMTP id MAA13166 for ; Mon, 15 Nov 1999 12:13:19 -0500 (EST) Received: (from rivers@localhost) by lakes.dignus.com (8.9.3/8.6.9) id MAA01202 for freebsd-stable@freebsd.org; Mon, 15 Nov 1999 12:13:18 -0500 (EST) Date: Mon, 15 Nov 1999 12:13:18 -0500 (EST) From: Thomas David Rivers Message-Id: <199911151713.MAA01202@lakes.dignus.com> To: freebsd-stable@freebsd.org Subject: More on my panic... (panic in pmap_pte_quick()) Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Well - I had a suggestion to recompile the loadable modules. So, I recompiled the linux module with -g. Suddenly, I now can get a traceback from DDB. I'm now getting a panic in pmap_pte_quick() (from pmap.c), with the following traceback: pmap_pte_quick()+12 pmap_ts_referenced() vm_pageout_page_stats() vm_pageout() kproc_start() fork_trampoline() The particular instruction is: movl 0(%edx,%eax,4),%ecx and %edx is the bad address, (%eax has 0x23...) I believe comes from the line (since we're only at offset +12): if (pde = (unsigned) pmap->pm_pdir[va >> PDRSHIFT]) { that is, the pmap parm to pmap_pte_quick seems to be bad. This pmap parm comes from Queue pointed to by ppv; which comes from pa_to_pvh(pa) - pa was passed in... Has anyone seen anything like this? - Dave Rivers - To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message