Re: Revision 297176 - hyperv/evttimer: Use an independent message slot so that it can work

I have reverted this change.  It will be brought back, after some code
refactoring.

On Fri, Apr 8, 2016 at 4:22 PM,  <smokehydration_at_tutanota.com> wrote:
>
> Hello
>
> I recently update one of my many vms from an older CURRENT revision r297196
> to r297659 and on reboot it just panics with the following:
>
> FreeBSD clang version 3.8.0 (tags/RELEHSE_380/final 262564) (based on LLVM
> 3.8.0
> )
> VT(vga): text 80x25
> Timecounter "Hyper-V" frequency 10000000 Hz quality 10000000
> Kernel trap 9 with interrupts disabled
>
>
> Fatal trap 9: general protection fault while in kernel mode
> cpuid = 0: apic id = 00
> instruction pointer     = 0x20:0xffffffff8100d6?9
> stack pointer           = 0x28:oxffffffff820d5c30
> frame pointer           = 0x28:oxffffffff820d5c40
> code segment            = base 0x0, limit 0xfffff, type 0x1b
>                         = DPL 0, pres 1, long 1, def32 0, gran 1
> processor eflags        = IOPL = 0
> current process         = 0 ()
> [ thread pid 0 tid 0 ]
> stopped at      hv_get_timecount+0x9:   rdmsr
> db) wh
> Tracing pid 0 tid 0 td 0xffffffff81d0eff0
> hv_get_timecount() at hv_get_timecount+0x9/frame 0xffffffff820d5c40
> tc_init() at tc_init+0x251/frame 0xffffffff820d5c90
> mi_startup() at mi_startup+0x118/frame 0xffffffff820d5cb0
> btext() at btext+ox2c                   =
> db>
>
> I changed hv_hv.c back to the previous revision (297176) and no panics under
> Xen VM.
>
> Thanks!
>
> p.s. not sure why Xen gets detected as HyperV
>



-- 
Tomorrow Will Never Die