[DragonFlyBSD - Bug #3292] nvmm: Fails to boot ISO snapshot (as of Aug, 9th)

[bugtracker-admin at leaf.dragonflybsd.org]

Issue #3292 has been updated by tuxillo.


Booting ubuntu 18 cloud image works fine, but these messages are printed:

<pre>
qemu-system-x86_64: NVMM: Unexpected RDMSR 0x64e, ignored
qemu-system-x86_64: NVMM: Unexpected RDMSR 0x34, ignored
</pre>

----------------------------------------
Bug #3292: nvmm: Fails to boot ISO snapshot (as of Aug, 9th)
http://bugs.dragonflybsd.org/issues/3292#change-14142

* Author: tuxillo
* Status: In Progress
* Priority: Normal
* Assignee: 
* Category: nvmm
* Target version: 6.2
----------------------------------------
As of DragonFly v6.1.0.403.gc0b79d-DEVELOPMENT, qemu+nvmm is unable to boot the ISO Snapshot from Aug, 9th:

<pre>
Booting in 9 seconds...
kernel text=0xbc43e0 data=0x176dda+0x9dcc86 syms=[0x8+0xfeee0+0x8+0xbd63a]
ehci.ko size 0x7b7c8 at 0x1cd5000
xhci.ko size 0x89458 at 0x1d51000
dm.ko size 0x1340b0 at 0x1ddb000
kernel trap 9 (thread0 @ 0xffffffff80bdaa3f) with interrupts disabled


Fatal trap 9: general protection fault while in kernel mode
cpuid = 0; instruction pointer  = 0x8:0xffffffff80bdaa3f
stack pointer           = 0x10:0xffffffff8113ff20
frame pointer           = 0x10:0xffffffff8113ff50
code segment            = base 0xfffffffff053f000, limit 0xe2c3, type 0x1f
                        = DPL 3, pres 1, long 1, def32 0, gran 0
processor eflags        = resume, IOPL = 0
current process         = 0
current thread          = pri 12 (CRIT)
kernel: type 9 trap, code=0

CPU0 stopping CPUs: 0x00000000
 stopped
Stopped at      -0x7f4255c1:    rdmsr
db> trace
(null)() at -0x7f4255c1 0xffffffff80bdaa3f
(null)() at -0x7f42a809 0xffffffff80bd57f7
</pre>

I'm using aly's qemu package and the nvmm module is loaded:

<pre>
$ pkg info | fgrep qemu-6
qemu-6.0.0_1                   Generic and open source machine emulator and virtualizer
$ kldstat |fgrep nvmm
15    1 0xffffffff85327000 1b1000   nvmm.ko
</pre>



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