Date: Tue, 10 Apr 2018 01:13:14 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 227404] UP FreeBSD VM always hangs on reboot since 20180329-r331740 Message-ID: <bug-227404-227@https.bugs.freebsd.org/bugzilla/>
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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.=
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