[Bug 203820] kernel panic when trying to unload vmm(4)
bugzilla-noreply at freebsd.org
bugzilla-noreply at freebsd.org
Mon Oct 19 11:42:13 UTC 2015
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=203820
--- Comment #1 from martin ilavsky <ilavsky.martin at gmail.com> ---
# kgdb kernel.debug /var/crash/vmcore.0
(kgdb) list *0xffffffff821f542b
0xffffffff821f542b is in vmx_disable (cpufunc.h:423).
418 }
419
420 static __inline void
421 load_cr4(u_long data)
422 {
423 __asm __volatile("movq %0,%%cr4" : : "r" (data));
424 }
425
426 static __inline u_long
427 rcr4(void)
Current language: auto; currently minimal
(kgdb) backtrace
#0 doadump (textdump=<value optimized out>) at pcpu.h:219
#1 0xffffffff8095a5a2 in kern_reboot (howto=260) at
/usr/src/sys/kern/kern_shutdown.c:451
#2 0xffffffff8095a985 in vpanic (fmt=<value optimized out>, ap=<value
optimized out>) at /usr/src/sys/kern/kern_shutdown.c:758
#3 0xffffffff8095a813 in panic (fmt=0x0) at
/usr/src/sys/kern/kern_shutdown.c:687
#4 0xffffffff80d98b1b in trap_fatal (frame=<value optimized out>, eva=<value
optimized out>) at /usr/src/sys/amd64/amd64/trap.c:851
#5 0xffffffff80d9879c in trap (frame=<value optimized out>) at
/usr/src/sys/amd64/amd64/trap.c:203
#6 0xffffffff80d7e832 in calltrap () at
/usr/src/sys/amd64/amd64/exception.S:236
#7 0xffffffff821f542b in vmx_disable (arg=0x0) at
/usr/src/sys/modules/vmm/../../amd64/vmm/intel/vmx.c:481
#8 0xffffffff809a372c in smp_rendezvous_action () at
/usr/src/sys/kern/subr_smp.c:439
#9 0xffffffff80d7fc49 in Xrendezvous () at apic_vector.S:295
#10 0xffffffff80d7be56 in acpi_cpu_c1 () at
/usr/src/sys/amd64/acpica/acpi_machdep.c:95
#11 0xffffffff8037de1a in acpi_cpu_idle (sbt=<value optimized out>) at
/usr/src/sys/dev/acpica/acpi_cpu.c:1038
#12 0xffffffff80d8238f in cpu_idle_acpi (sbt=83757098) at
/usr/src/sys/amd64/amd64/machdep.c:682
#13 0xffffffff80d82430 in cpu_idle (busy=0) at
/usr/src/sys/amd64/amd64/machdep.c:828
#14 0xffffffff809872e5 in sched_idletd (dummy=<value optimized out>) at
/usr/src/sys/kern/sched_ule.c:2662
#15 0xffffffff809243aa in fork_exit (callout=0xffffffff80987110 <sched_idletd>,
arg=0x0, frame=0xfffffe082cdb6ac0) at /usr/src/sys/kern/kern_fork.c:1018
#16 0xffffffff80d7ed6e in fork_trampoline () at
/usr/src/sys/amd64/amd64/exception.S:611
#17 0x0000000000000000 in ?? ()
(kgdb)
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