Build machine updated from r319689 to r319733 OK; smoke test was

Laptop updated similarly, but smoke test was a little more "interesting".

Turns out that laptop gets to multi-user mode OK... if I disable
starting xdm, devd, and hald.  But then, issuing "service hald onestart"
generates the panic in question -- at r319733.  At r319689, xdm &
friends worked fine.

I have placed copies of the /var/crash/*.6 files in
<> -- along with
gzipped copies, as well.  (It's residential DSL in the US, so there's
not a huge amount of bandwidth.)

I get the impression that something (ini hald) was trying to use
the freebsd11 version of stat(), and Something Bad happened:

panic: mtx_lock() of spin mutex (null) @ /usr/src/sys/kern/sys_socket.c:305
cpuid = 7
time = 1497011454
KDB: stack backtrace:
db_trace_self_wrapper() at 0xffffffff803a461b = 
db_trace_self_wrapper+0x2b/frame 0xfffffe0c268ff600
vpanic() at 0xffffffff80a1f94c = vpanic+0x19c/frame 0xfffffe0c268ff680
kassert_panic() at 0xffffffff80a1f7a6 = kassert_panic+0x126/frame 
__mtx_lock_flags() at 0xffffffff809fedfe = __mtx_lock_flags+0x14e/frame 
soo_stat() at 0xffffffff80a8f8f0 = soo_stat+0x60/frame 0xfffffe0c268ff770
kern_fstat() at 0xffffffff809cb378 = kern_fstat+0xa8/frame 0xfffffe0c268ff7c0
freebsd11_fstat() at 0xffffffff809cb28d = freebsd11_fstat+0x1d/frame 
amd64_syscall() at 0xffffffff80e31fb4 = amd64_syscall+0x5a4/frame 
Xfast_syscall() at 0xffffffff80e12eab = Xfast_syscall+0xfb/frame 
--- syscall (189, FreeBSD ELF64, freebsd11_fstat), rip = 0x801b4973a, rsp = 
0x7fffffffe988, rbp = 0x7fffffffea20 ---
KDB: enter: panic

Note: the hald in question was built under FreeBSD stable/11 (as
are all my ports); I noted the existence of, and installed,
ports/misc/compat11s before (re-)creating the crash.  (And yes, the
ports that have kernel modules get the kernel modules rebuilt on
head every time I rebuild the kernel on head.)

With the caveat that I actually use the laptop in my day-to-day
activities, I'm happy to try various combinations of patching,
testing, and reporting results.

David H. Wolfskill                    
Looking forward to telling Mr. Trump: "You're fired!"

See for my public key.

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