Date: Sat, 01 Sep 2018 07:00:15 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 231067] Random kernel panic after r338257 Message-ID: <bug-231067-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=231067 Bug ID: 231067 Summary: Random kernel panic after r338257 Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: fuyuhiko.maruyama@gmail.com After r338257, kernel panic happen in ramdom timing. This may be triggered by named, in my case dns/bind911. With kernel after r338257, make buildworld at /usr/src cannot be completed because of kernel panics. Typically kernel goes panics in a few minutes after beginning of make buildworld. I found the origin of this panics by binary searching of svn-head and determined that r338256(with r338260's small fixes for building) is the last stable kernel that can complete buildworld/buildkernel, and r338257(with r338260's small fixes) is the first revision that causes current problems. One instance of panic message is like below(with r338257 kernel), typed by hand: Fatal trap 12: page fault while in kernel mode cpuid = 1: apic id = 01 fault virtual address = 0x98 fault code = supervisor read data, page not present instruction pointer = 0x20:0xffffffff80988c6f stack pointer = 0x28:0xfffffe00a274d370 frame pointer = 0x28:0xfffffe00a274d5d0 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflag = interrupt enabled, resume, IOPL = 0 current process = 766 (isc-worker0000) [ thread pic 766 tid 100985 ] Stopped at ip6_output+0xeaf: movl ll+0x77(%rdi),%eax db> bt Tracing pid 766 tid 100993 td 0xfffff80024446000 ip6_output() at ip6_output+0xeaf/frame 0xfffffe00a274d5d0 udp6_send() at udp6_send+0x86a/frame 0xfffffe00a274d790 sosend_dgram() at sosend_dgram+0x33b/frame 0xfffffe00a274d800 sosend() at sosend+0x50/frame 0xfffffe00a274d830 kern_sendit() at kern_sendit+0x237/frame 0xfffffe00a274d8d0 sendit() at sendit+0x19e/frame 0xfffffe00a274d920 sys_sendmsg() at sys_sendmsg+0x61/frame 0xfffffe00a274d980 amd64_syscall() at amd64_syscall+0x369/frame 0xfffffe00a274dab0 fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe00a274dab0 --- syscall (28, FreeBSD ELF64, sys_sendmsg), rip = 0x800fe0a9a, rsp = 0x7fffdfffb528, rbp = 0x7fffdfffb560 --- Another example here(with r338406 kernel): Fatal trap 12: page fault while in kernel mode cpuid = 2: apic id = 02 fault virtual address = 0x110 fault code = supervisor read data, page not present instruction pointer = 0x20:0xffffffff80763428 stack pointer = 0x28:0xfffffe00a21242c0 frame pointer = 0x28:0xfffffe00a2124360 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflag = interrupt enabled, resume, IOPL = 0 current process = 766 (isc-worker0000) [ thread pic 766 tid 100985 ] Stopped at __rw_wlock_hard+0x1d8: movq (%rbx),%r14 db> -- You are receiving this mail because: You are the assignee for the bug.
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