On 28 Oct, Konstantin Belousov wrote: > On Tue, Oct 27, 2015 at 04:09:28PM -0700, Don Lewis wrote: >> I just got this crash while running poudriere on a freshly upgraded >> 11.0-CURRENT machine. The instruction pointer value looks pretty >> strange. >> >> >> FreeBSD zipper.catspoiler.org 11.0-CURRENT FreeBSD 11.0-CURRENT #30 r290039: >> Tue Oct 27 00:08:00 PDT 2015 >> d...@zipper.catspoiler.org:/usr/obj/usr/src/sys/GENERIC amd64 >> >> panic: >> >> GNU gdb 6.1.1 [FreeBSD] >> Copyright 2004 Free Software Foundation, Inc. >> GDB is free software, covered by the GNU General Public License, and you are >> welcome to change it and/or distribute copies of it under certain conditions. >> Type "show copying" to see the conditions. >> There is absolutely no warranty for GDB. Type "show warranty" for details. >> This GDB was configured as "amd64-marcel-freebsd"... >> >> Unread portion of the kernel message buffer: >> >> >> Fatal trap 1: privileged instruction fault while in kernel mode >> cpuid = 4; apic id = 14 >> instruction pointer = 0x20:0xffffffff8240fef5 > What is the instruction at the reported address ?
(kgdb) disassemble/r Dump of assembler code for function cpu_lock: 0xffffffff8240fef0 <+0>: 25 bb 40 82 ff and $0xff8240bb,%eax => 0xffffffff8240fef5 <+5>: ff (bad) 0xffffffff8240fef6 <+6>: ff (bad) 0xffffffff8240fef7 <+7>: ff 00 incl (%rax) 0xffffffff8240fef9 <+9>: 00 71 02 add %dh,0x2(%rcx) 0xffffffff8240fefc <+12>: 00 00 add %al,(%rax) 0xffffffff8240fefe <+14>: 00 00 add %al,(%rax) 0xffffffff8240ff00 <+16>: 00 00 add %al,(%rax) 0xffffffff8240ff02 <+18>: 00 00 add %al,(%rax) 0xffffffff8240ff04 <+20>: 00 00 add %al,(%rax) 0xffffffff8240ff06 <+22>: 00 00 add %al,(%rax) 0xffffffff8240ff08 <+24>: 01 00 add %eax,(%rax) 0xffffffff8240ff0a <+26>: 00 00 add %al,(%rax) 0xffffffff8240ff0c <+28>: 00 00 add %al,(%rax) 0xffffffff8240ff0e <+30>: 00 00 add %al,(%rax) End of assembler dump. _______________________________________________ freebsd-current@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
