From owner-freebsd-questions@freebsd.org Sat Apr 1 00:18:47 2017 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 65F5FD27AED for ; Sat, 1 Apr 2017 00:18:47 +0000 (UTC) (envelope-from mwm@mired.org) Received: from mailman.ysv.freebsd.org (unknown [127.0.1.3]) by mx1.freebsd.org (Postfix) with ESMTP id 486D0165 for ; Sat, 1 Apr 2017 00:18:47 +0000 (UTC) (envelope-from mwm@mired.org) Received: by mailman.ysv.freebsd.org (Postfix) id 44CCFD27AEC; Sat, 1 Apr 2017 00:18:47 +0000 (UTC) Delivered-To: questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 445D9D27AEB for ; Sat, 1 Apr 2017 00:18:47 +0000 (UTC) (envelope-from mwm@mired.org) Received: from mail-vk0-x235.google.com (mail-vk0-x235.google.com [IPv6:2607:f8b0:400c:c05::235]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 17649164 for ; Sat, 1 Apr 2017 00:18:47 +0000 (UTC) (envelope-from mwm@mired.org) Received: by mail-vk0-x235.google.com with SMTP id z204so105045123vkd.1 for ; Fri, 31 Mar 2017 17:18:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mired-org.20150623.gappssmtp.com; s=20150623; h=mime-version:from:date:message-id:subject:to; bh=7mdAlJL+S+pmYZZfau2JY6L/0qqyVEsn+3lYagfXC3A=; b=1/uU0svL0N5//mQBBX8Ft7wGPhunt21Xdm8vblljgydvP2fh6Z8wwcNbUqQUjMmlRb hH1ig58bMML9X78qTOOL3dHXcuNrOPl8snyezLg/EyuoovNNaUKsGWSZu8nyaWUK4uZ6 u+HIHQmwHwe4YGzaEWbi1wfOj38G4HWUbE9aww8sP5vpnth9lh0LTP8sWGbsXRRS0Y5r DBhzchYNHdzEI2HAKKInn3tkxaIEQiPonNHLQwX8YfksEJ53f9qN72qB0v69X3dcEH9a NmbLLgVzlhZ4SkjuQkY15zFcmtg8qSuAn6EdyCvXK5pzp18ECiYauME+EAG8Kit3ocS/ ukGw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=7mdAlJL+S+pmYZZfau2JY6L/0qqyVEsn+3lYagfXC3A=; b=mo0lo51Giey+dxKxSL+MxqyTSTmb1Kj7yt9/suhOi+m/01UfkJrJUveXgM+tQYfOel dSk8wFBvqjTGbt+N1hsK/0ewqTrfcxCezNSTC4oZk6tqM2s1Oold2eEFd5B+IATkpsNO xVxOeAJ0av3J/RoAeizch7SuIU4yNrcpsFU2riPoqdpRPjs4y6eaSOFRoaP6o3ZMxjef 2lDVZCi9cSQJjFivPkJxiYk+ZUjNJT1Ebk5Eqm0avZxsbPfRLHHCso3ZcSG7GWxWvvox XIBnEZY6Ob+sNhGtaf2NeOkw9moV9puw8iZrPDp9x9+kkc0iBlkD8G/WdrkScx7CUwrK 9IkQ== X-Gm-Message-State: AFeK/H25+RldJAnvyt0KSJyuKim8FM4oF3Wxc9N5ij32pzdx6bZujWGoU8gtvXT25Lc12TU5kZfHL+YfQoaLPw== X-Received: by 10.31.94.193 with SMTP id s184mr2723751vkb.61.1491005925759; Fri, 31 Mar 2017 17:18:45 -0700 (PDT) MIME-Version: 1.0 From: Mike Meyer Date: Sat, 01 Apr 2017 00:18:35 +0000 Message-ID: Subject: Help with crashes on FreeBSD 11.0 To: questions@freebsd.org Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.23 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 01 Apr 2017 00:18:47 -0000 I've been chasing issues on my 11.0 system, and have about reached a dead end. I'm hoping I can get some help here. The initial issue was that Chromium would crash at random with an illegal instruction. Google couldn't find any reports from others of such problems, and there were no open issues about it, so I figured it was some kind of corruption on my system. I checked package checksums, reinstalled packages that weren't right, and otherwise put things back. Still happened. Tried reinstalling all packages. Still no help. At that point, I tried firefox and it was also crashing, but with a different error (segmentation violation or bus error). VirtualBox also started crashing, with whichever of those two problems Firefox wasn't having. All three crashed pretty reliably, always with the same error, but each with a different error. I tried building a debug version of chromium, but kept getting link errors about "environ" being missing (huh?). So I figured it was a hardware problem. I spent three days running various version of memtest86 and found zero errors. I started running some stress tests. Looping over "make buildworld" ran for a day or so with no problems. Changing it to "make -j 12 buildworld" (I see 12 cpu's on my hyperthreaded 6-core system) led to pretty consistent reboots after a few hours. But no crash dumps. Ok, my swap is on a disk that has partitions in ZFS pools, so I figured that might be an issue. Added a spare drive, pointed dumpdev at it, and verified with debug.kdb.panic that I would get a core dump from a panic. Reran the "make -j 12 buildworld" loop. Still no core dumps.. Ok, at this point I'm sort of at a loss. I'm pretty sure it's a hardware problem, but have no idea how to narrow things down. Running a version of one of the crashing programs under gdb with debug symbols might help, but might not, and getting one seems problematical. Any one have suggestions? Maybe a good hardware test tool that test things other than memory? Any information I can provide that might help? Thanks, Mike