Date: Sun, 05 Jul 2015 21:53:57 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 201368] Kernel panic vm_fault: fault on nofault entry Message-ID: <bug-201368-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D201368 Bug ID: 201368 Summary: Kernel panic vm_fault: fault on nofault entry Product: Base System Version: 10.1-RELEASE Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: jake.guffey@jointheirstm.org I just experienced a kernel panic/reboot due to a reported vm_fault. /var/log/messages provides: Jul 5 02:19:37 shemuel syslogd: kernel boot file is /boot/kernel/kernel Jul 5 02:19:37 shemuel kernel: panic: vm_fault: fault on nofault entry, ad= dr: c8f45000 Jul 5 02:19:37 shemuel kernel: KDB: stack backtrace: Jul 5 02:19:37 shemuel kernel: #0 0xc06f07e2 at kdb_backtrace+0x52 Jul 5 02:19:37 shemuel kernel: #1 0xc06bafe5 at panic+0x85 Jul 5 02:19:37 shemuel kernel: #2 0xc096439e at vm_fault_hold+0x211e Jul 5 02:19:37 shemuel kernel: #3 0xc0962241 at vm_fault+0x81 Jul 5 02:19:37 shemuel kernel: #4 0xc0a02931 at trap_pfault+0x291 Jul 5 02:19:37 shemuel kernel: #5 0xc0a020e1 at trap+0x5f1 Jul 5 02:19:37 shemuel kernel: #6 0xc09ee5ec at calltrap+0x6 Jul 5 02:19:37 shemuel kernel: #7 0xc085eb8a at sysctl_ip6_temppltime+0x3a Jul 5 02:19:37 shemuel kernel: #8 0xc06c5a4f at sysctl_root+0x2af Jul 5 02:19:37 shemuel kernel: #9 0xc06c6049 at userland_sysctl+0x1f9 Jul 5 02:19:37 shemuel kernel: #10 0xc06c5e08 at sys___sysctl+0x98 Jul 5 02:19:37 shemuel kernel: #11 0xc0a02f4e at syscall+0x38e Jul 5 02:19:37 shemuel kernel: #12 0xc09ee651 at Xint0x80_syscall+0x21 Jul 5 02:19:37 shemuel kernel: Uptime: 35d19h44m32s Jul 5 02:19:37 shemuel kernel: Physical memory: 787 MB Jul 5 02:19:37 shemuel kernel: Dumping 133 MB: 118 102 86 70 54 38 22 6=20 Jul 5 02:19:37 shemuel kernel: Dump complete Jul 5 02:19:37 shemuel kernel: Automatic reboot in 15 seconds - press a ke= y on the console to abort Jul 5 02:19:37 shemuel kernel: Rebooting... I do have a dump that I can provide if necessary. I have a custom kernel and can provide the configuration as well. This particular box runs two jails and that=E2=80=99s about it. At the time= of the panic, I issued "sysctl -a=E2=80=9D from within one of my jails. I was able= to reproduce the bug by doing the same thing after the reboot. This resulted i= n a corrupted filesystem which I'm fixing right now. --=20 You are receiving this mail because: You are the assignee for the bug.=
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