https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=255191
Bug ID: 255191
Summary: Booting DragonFlyBSD results in Failed to emulate
instruction sequence output
Product: Base System
Version: 13.0-STABLE
Hardware: amd64
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: bhyve
Assignee: [email protected]
Reporter: [email protected]
Hello,
I haveve installed FreeBSD 13.0 and I am trying to virtualize DragonFlyBSD
5.8.3 with the following command line :
sh /usr/share/examples/bhyve/vmrun.sh -c 1 -m 512M -d /path/to/dfly.img -i -I
/path/to/dfly-x86_64-5.8.3_REL.iso dfly
But this results in the following output :
Launching virtual machine "dfly" ...
Consoles: userboot
FreeBSD/amd64 User boot lua, Revision 1.2
Consoles: userboot
FreeBSD/amd64 User boot 4th, Revision 1.2
/
/boot/kernel/kernel text=0xb95180 data=0xf68000 syms=[0x8+0xfcfc0+0x8+0xbc50c]
Hit [Enter] to boot immediately, or any other key for command prompt.
Booting [/boot/kernel/kernel]...
Copyright (c) 2003-2020 The DragonFly Project.
Copyright (c) 1992-2003 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights reserved.
Unhandled memory access to 0x100000000
Failed to emulate instruction sequence [ 813c8f5f4d505f742483c20439d37f ] at
0xffffffff80bebe43
Abort trap
>From the DragonFlyBSD people, I got that particular sequence as :
/home/justin/release/5_8/sys/platform/pc64/x86_64/mptable.c:377
ffffffff80bebe40: 48 63 ca movslq %edx,%rcx
ffffffff80bebe43: 81 3c 8f 5f 4d 50 5f cmpl
$0x5f504d5f,(%rdi,%rcx,4)
ffffffff80bebe4a: 74 24 je ffffffff80bebe70
<mptable_search_sig+0x60>
/home/justin/release/5_8/sys/platform/pc64/x86_64/mptable.c:376 (discriminator
2)
ffffffff80bebe4c: 83 c2 04 add $0x4,%edx
ffffffff80bebe4f: 39 d3 cmp %edx,%ebx
ffffffff80bebe51: 7f ed jg ffffffff80bebe40
<mptable_search_sig+0x30>
Those lines are from
https://gitweb.dragonflybsd.org/dragonfly.git/blob/refs/heads/DragonFly_RELEASE_5_8:/sys/platform/pc64/x86_64/mptable.c#l376
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