Re: Recent -current stable panic at later boot stage

 ---- On Sat, 09 Jul 2016 18:19:57 -0700 Andrey Chernov <ache_at_freebsd.org> wrote ---- 
 > BTW, it never happens with 11-ALPHA3 even with world build for 12. 
 >  
 > On 09.07.2016 22:06, Andrey Chernov wrote: 
 > > SCHED_ULE used. I have textdump only. Interesting parts: 
 > > <118>Starting syslogd. 
 > > kernel trap 9 with interrupts disabled 
 > >  
 > > Fatal trap 9: general protection fault while in kernel mode 
 > > cpuid = 7; apic id = 07 
 > > instruction pointer    = 0x20:0xffffffff806b2585 
 > > stack pointer            = 0x28:0xfffffe022ccce8d0 
 > > frame pointer            = 0x28:0xfffffe022ccce950 
 > > code segment        = base 0x0, limit 0xfffff, type 0x1b 
 > >             = DPL 0, pres 1, long 1, def32 0, gran 1 
 > > processor eflags    = resume, IOPL = 0 
 > > current process        = 10 (idle: cpu7) 
 > >  
 > > It happens at amd64/amd64/cpu_switch.S:ld_ldt:        lldt    %ax 
 > >  
 > > db> bt 
 > >  
 > > Tracing pid 10 tid 100009 td 0xfffff80002292000 
 > > ld_ldt() at ld_ldt/frame 0xfffffe022ccce8e0 
 > > sched_switch() at sched_switch+0x51d/frame 0xfffffe022ccce950 
 > > mi_switch() at mi_switch+0x156/frame 0xfffffe022ccce980 
 > > sched_idletd() at sched_idletd+0xf9/frame 0xfffffe022cccea70 
 > > fork_exit() at fork_exit+0x84/frame 0xfffffe022ccceab0 
 > > fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe022ccceab0 
 > > --- trap 0, rip = 0, rsp = 0, rbp = 0 --- 
 
Have their been no other stability issues on this machine? At first glance it looks like the ldt got corrupted. Is there no way to inspect that?

-M