Date: Sat, 15 Apr 2017 11:59:10 +0200 From: "O. Hartmann" <ohartmann@walstatt.org> To: Konstantin Belousov <kostikbel@gmail.com> Cc: "O. Hartmann" <ohartmann@walstatt.org>, Alan Somers <asomers@freebsd.org>, FreeBSD CURRENT <freebsd-current@freebsd.org> Subject: Re: CURRENT (r316844): Fatal trap 12: page fault while in kernel mode (syslogd) Message-ID: <20170415115910.65e1a0ea@thor.intern.walstatt.dynvpn.de> In-Reply-To: <20170415093334.GO1788@kib.kiev.ua> References: <20170414175246.2353dcf0@thor.intern.walstatt.dynvpn.de> <CAOtMX2gnNtBkWcJArauE=g5SP-F3h2QqazoOKBUfSVZZarkGPw@mail.gmail.com> <20170414185827.1ab68398@thor.intern.walstatt.dynvpn.de> <20170414171857.GK1788@kib.kiev.ua> <20170415111841.0c34be88@thor.intern.walstatt.dynvpn.de> <20170415093334.GO1788@kib.kiev.ua>
next in thread | previous in thread | raw e-mail | index | archive | help
[-- Attachment #1 --] Am Sat, 15 Apr 2017 12:33:34 +0300 Konstantin Belousov <kostikbel@gmail.com> schrieb: > On Sat, Apr 15, 2017 at 11:18:41AM +0200, O. Hartmann wrote: > > Am Fri, 14 Apr 2017 20:18:57 +0300 > > Konstantin Belousov <kostikbel@gmail.com> schrieb: > > > > > On Fri, Apr 14, 2017 at 06:58:27PM +0200, O. Hartmann wrote: > > > > Fatal trap 12: page fault while in kernel mode > > > > cpuid = 2; apic id = 02 > > > > fault virtual address = 0xfffff8001282fb00 > > > > fault code = supervisor read instruction, protection violation > > > > > > > ??() at 0xfffff8001282fb00 > > > > bpf_mtap() at bpf_mtap+0x1ab/frame 0xfffffe012d2aefb0 > > > > iflib_txq_drain() at iflib_txq_drain+0x1383/frame 0xfffffe012d2af130 > > > > drain_ring_lockless() at drain_ring_lockless+0xc0/frame 0xfffffe012d2af190 > > > > ifmp_ring_enqueue() at ifmp_ring_enqueue+0x32e/frame 0xfffffe012d2af200 > > > > iflib_if_transmit() at iflib_if_transmit+0xb0/frame 0xfffffe012d2af240 > > > > ether_output() at ether_output+0x730/frame 0xfffffe012d2af2e0 > > > > arprequest() at arprequest+0x426/frame 0xfffffe012d2af3e0 > > > > arpresolve_full() at arpresolve_full+0x3d1/frame 0xfffffe012d2af460 > > > > arpresolve() at arpresolve+0x10c/frame 0xfffffe012d2af4d0 > > > > ether_output() at ether_output+0x4e1/frame 0xfffffe012d2af570 > > > > ip_output() at ip_output+0x14e6/frame 0xfffffe012d2af6b0 > > > > udp_send() at udp_send+0xab1/frame 0xfffffe012d2af780 > > > > sosend_dgram() at sosend_dgram+0x3e4/frame 0xfffffe012d2af7f0 > > > > kern_sendit() at kern_sendit+0x229/frame 0xfffffe012d2af890 > > > > sendit() at sendit+0x1a7/frame 0xfffffe012d2af8e0 > > > > sys_sendto() at sys_sendto+0x4d/frame 0xfffffe012d2af930 > > > > amd64_syscall() at amd64_syscall+0x4c2/frame 0xfffffe012d2afab0 > > > > Xfast_syscall() at Xfast_syscall+0xfb/frame 0xfffffe012d2afab0 > > > > syscall (133, FreeBSD ELF64, sys_sendto), rip = 0x800b8a5fa, rsp = 0x7fffffffd6b8, > > > > rbp = 0x7fffffffdcc0 --- > > > > > > You probably have BPF_JITTER option in your kernel config. Either set > > > net.bpf_jitter.enable to 0 for now, or remove the option. > > > > > > It is due to r316767. The issue is known and a solution is being discussed. > > > > simply setting "net.bpf_jitter.enable=0" in /boot/loader.conf.local doesn't help, the > > Trap 12 still occurs. > > It is sysctl, not tunable. Correct, I didn't/couldn't think that far. Having a setting in /etc/sysctl.conf accordingly, booting the kernel doesn't reveal the Trap 12 anymore. Thanks. Oliver -- O. Hartmann Ich widerspreche der Nutzung oder Übermittlung meiner Daten für Werbezwecke oder für die Markt- oder Meinungsforschung (§ 28 Abs. 4 BDSG). [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- iLUEARMKAB0WIQQZVZMzAtwC2T/86TrS528fyFhYlAUCWPHu7gAKCRDS528fyFhY lLzLAf92lC4fqo0TzDv1qEbyJCRX7Jos+cqxPrqoq4/clfEBEy0kMRuDmfyaUuz7 E1hOEtvAOAKCZYu0hlti8BSjWCGtAf95VVeRHvO+pPC1Db4xQBf2JrzfahKm6DGW dTCJXH/pMM8WIeEphCRopTysAOYKAzKZ13O9KOBiGKJXIcjAt8cf =Uk50 -----END PGP SIGNATURE-----
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20170415115910.65e1a0ea>