Date: Mon, 16 Feb 2015 22:48:16 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 197535] [re] [panic] if_re (Realtek 8168) causes memory write after free and kernel panic Message-ID: <bug-197535-8-1EWxOfP0Eg@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-197535-8@https.bugs.freebsd.org/bugzilla/> References: <bug-197535-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=197535 --- Comment #6 from Marius Strobl <marius@FreeBSD.org> --- Your rev. 0x4c000000 MAC coming up with broken firmware could be another reason, which would be unfortunate, though, as these images are GPLed. However, the Atom E3800 errata has an entry (VLI30 in the non-NDA October 2013 version of that document) suggesting that the MMU will not behave correctly when employing super pages, which would be a more plausible cause for the problems you are experiencing. Thus, I'd give a kernel with super page usage disabled a try. Last time I tested, unfortunately, the corresponding loader tunable didn't take effect. So manually setting pg_ps_enabled to 0 in sys/amd64/amd64/pmap.c and recompiling likely is safest in order to do so. -- You are receiving this mail because: You are the assignee for the bug.
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