From owner-freebsd-bugs@freebsd.org Tue Apr 10 01:13:16 2018 Return-Path: Delivered-To: freebsd-bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 5B704F8EA94 for ; Tue, 10 Apr 2018 01:13:16 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id E7F4A7EF13 for ; Tue, 10 Apr 2018 01:13:15 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id ABB5CF8EA93; Tue, 10 Apr 2018 01:13:15 +0000 (UTC) Delivered-To: bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 6E91FF8EA8E for ; Tue, 10 Apr 2018 01:13:15 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.ysv.freebsd.org (mxrelay.ysv.freebsd.org [IPv6:2001:1900:2254:206a::19:3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mxrelay.ysv.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 02E867EF12 for ; Tue, 10 Apr 2018 01:13:15 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.ysv.freebsd.org (Postfix) with ESMTPS id 34FD031E7 for ; Tue, 10 Apr 2018 01:13:14 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id w3A1DEml084893 for ; Tue, 10 Apr 2018 01:13:14 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id w3A1DE7x084892 for bugs@FreeBSD.org; Tue, 10 Apr 2018 01:13:14 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 227404] UP FreeBSD VM always hangs on reboot since 20180329-r331740 Date: Tue, 10 Apr 2018 01:13:14 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: decui@microsoft.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 10 Apr 2018 01:13:16 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D227404 Bug ID: 227404 Summary: UP FreeBSD VM always hangs on reboot since 20180329-r331740 Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: decui@microsoft.com It looks on Hyper-V the issue only happens to UP VM (SMP VM is good), but t= he VM hangs in the generic FreeBSD kernel code, so I suspect the issue should reproduce on bare metal as well. More info: FreeBSD-12.0-CURRENT-amd64-20180322-r331345-disc1.iso is good, but FreeBSD-12.0-CURRENT-amd64-20180329-r331740-disc1.iso is broken. These are the serial messages: Tue Apr 10 01:52:02 CST 2018 FreeBSD/amd64 (decui-b11) (ttyu0) login: Stopping cron. Stopping sshd. appending output to nohup.out Stopping devd. Writing entropy file:. Writing early boot entropy file:. Terminated . Apr 10 01:52:10 decui-b11 syslogd: exiting on signal 15 Waiting (max 60 seconds) for system process `vnlru' to stop... done Waiting (max 60 seconds) for system process `bufdaemon' to stop... done Waiting (max 60 seconds) for system process `syncer' to stop... Syncing disks, vnodes remaining... 4 NMI ISA 0, EISA ff NMI/cpu0 ... going to debugger [ thread pid 18 tid 100055 ] Stopped at witness_lock+0x1ae: popq %rbp db> bt Tracing pid 18 tid 100055 td 0xfffff8000b052000 witness_lock() at witness_lock+0x1ae/frame 0xfffffe0026553930 sched_add() at sched_add+0xe3/frame 0xfffffe0026553970 setrunnable() at setrunnable+0x8f/frame 0xfffffe0026553990 sleepq_broadcast() at sleepq_broadcast+0xe8/frame 0xfffffe00265539d0 wakeup() at wakeup+0x1d/frame 0xfffffe00265539f0 kproc_suspend_check() at kproc_suspend_check+0x58/frame 0xfffffe0026553a20 buf_daemon() at buf_daemon+0x11a/frame 0xfffffe0026553a70 fork_exit() at fork_exit+0x84/frame 0xfffffe0026553ab0 fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe0026553ab0 --- trap 0, rip =3D 0, rsp =3D 0, rbp =3D 0 --- db> --=20 You are receiving this mail because: You are the assignee for the bug.=