-current currently broken

[marcotte%panix.com@localhost (Brian Marcotte)]

While investigating some network performance issues in -current, I find
that -current is not currently working in PVH or PV modes. PVHVM appears
fine. I also tried daily binary snapshot 202103042000Z.

Xen 4.13 or 4.14 and Linux dom0.

Thanks.

- Brian

---------------------------------------------------------
PVH NetBSD domU console output:
	[no console output before crashing]

Xen console output:

(XEN) d33v0 Triple fault - invoking HVM shutdown action 1
(XEN) *** Dumping Dom33 vcpu#0 state: ***
(XEN) ----[ Xen-4.14.2-pre  x86_64  debug=n   Not tainted ]----
(XEN) CPU:    17
(XEN) RIP:    0008:[<ffffffff80221a34>]
(XEN) RFLAGS: 0000000000000002   CONTEXT: hvm guest (d33v0)
(XEN) rax: 0000000000000017   rbx: 0000000001c5e000   rcx: 00000000fffffffe
(XEN) rdx: 0000000000000001   rsi: 0000000000000001   rdi: 0000000000000000
(XEN) rbp: ffffffff81c29da0   rsp: ffffffff81c29da0   r8:  0000000000000007
(XEN) r9:  0000000000000000   r10: 0000000000000001   r11: 00000000fffffffe
(XEN) r12: 0000000000000104   r13: ffffffff8145544a   r14: ffffffff81c29de8
(XEN) r15: 0000000000000000   cr0: 000000008005003b   cr4: 0000000000000620
(XEN) cr3: 0000000001c23000   cr2: 0000000000000000
(XEN) fsb: 0000000000000000   gsb: ffffffff8183acc0   gss: 0000000000000000
(XEN) ds: 0010   es: 0010   fs: 0000   gs: 0000   ss: 0010   cs: 0008

---------------------------------------------------------
PV NetBSD domU console output:

[   1.0000000] Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
[   1.0000000]     2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
[   1.0000000]     2018, 2019, 2020, 2021 The NetBSD Foundation, Inc.  All rights reserved.
[   1.0000000] Copyright (c) 1982, 1986, 1989, 1991, 1993
[   1.0000000]     The Regents of the University of California.  All rights reserved.
[   1.0000000] NetBSD 9.99.80 (XEN3_DOMU) #0: Thu Mar  4 19:01:41 UTC 2021
[   1.0000000]  mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/xen/compile/XEN3_DOMU
[   1.0000000] total memory = 1500 MB
[   1.0000000] avail memory = 1439 MB
[   1.0000000] mainbus0 (root)
[   1.0000030] uvm_fault(0xffffffff8087b660, 0x0, 1) -> e
[   1.0000030] fatal page fault in supervisor mode
[   1.0000030] trap type 6 code 0 rip 0xffffffff805e38b1 cs 0xe030 rflags 0x10212 cr2 0x40 ilevel 0 rsp 0xffffffff80c66df8
[   1.0000030] curlwp 0xffffffff8072d280 pid 0.0 lowest kstack 0xffffffff80c622c0
kernel: page fault trap, code=0
Stopped in pid 0.0 (system) at  netbsd:strlen+0x61:     movq    0(%rax),%rdx
strlen() at netbsd:strlen+0x61
xen_initclocks() at netbsd:xen_initclocks+0x4b
initclocks() at netbsd:initclocks+0x1e
main() at netbsd:main+0x34f
ds          20
es          5fcf
fs          0
gs          e308
rdi         44
rsi         1
rbp         ffffffff80c66e20
rbx         ffffffff8071fb00    cpu_info_primary+0x8c40
rdx         0
rcx         20
rax         40
r8          101010101010101
r9          8080808080808080
r10         20
r11         0
r12         44
r13         0
--db_more--xenconscn_getc(): not console

Xen console output:
	[None]