d01d12de14
Or else it triggers the following bug: APIC: CPU 6 has ACPI ID 6 APIC: CPU 7 has ACPI ID 7 panic: vm_wait in early boot cpuid = 0 time = 1 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xffffffff826ff8d0 vpanic() at vpanic+0x1a3/frame 0xffffffff826ff930 panic() at panic+0x43/frame 0xffffffff826ff990 vm_wait_domain() at vm_wait_domain+0xf9/frame 0xffffffff826ff9c0 kmem_alloc_contig_domain() at kmem_alloc_contig_domain+0x252/frame 0xffffffff826ffa50 kmem_alloc_contig() at kmem_alloc_contig+0x6c/frame 0xffffffff826ffad0 contigmalloc() at contigmalloc+0x2e/frame 0xffffffff826ffb00 x86bios_modevent() at x86bios_modevent+0x225/frame 0xffffffff826ffb20 module_register_init() at module_register_init+0xc0/frame 0xffffffff826ffb50 mi_startup() at mi_startup+0x118/frame 0xffffffff826ffb70 start_kernel() at start_kernel+0x10 While there also make x86bios_unmap_mem idempotent. Reviewed by: kib Approved by: re (gjb) Sponsored by: Citrix Systems R&D Differential revision: https://reviews.freebsd.org/D17000
FreeBSD Source:
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FreeBSD
FreeBSD is an operating system used to power modern servers, desktops, and embedded platforms. A large community has continually developed it for more than thirty years. Its advanced networking, security, and storage features have made FreeBSD the platform of choice for many of the busiest web sites and most pervasive embedded networking and storage devices.
For copyright information, please see the file COPYRIGHT in this directory. Additional copyright information also exists for some sources in this tree - please see the specific source directories for more information.
The Makefile in this directory supports a number of targets for building components (or all) of the FreeBSD source tree. See build(7), config(8), https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html, and https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html for more information, including setting make(1) variables.
Source Roadmap:
bin System/user commands.
cddl Various commands and libraries under the Common Development
and Distribution License.
contrib Packages contributed by 3rd parties.
crypto Cryptography stuff (see crypto/README).
etc Template files for /etc.
gnu Various commands and libraries under the GNU Public License.
Please see gnu/COPYING* for more information.
include System include files.
kerberos5 Kerberos5 (Heimdal) package.
lib System libraries.
libexec System daemons.
release Release building Makefile & associated tools.
rescue Build system for statically linked /rescue utilities.
sbin System commands.
secure Cryptographic libraries and commands.
share Shared resources.
stand Boot loader sources.
sys Kernel sources.
sys/<arch>/conf Kernel configuration files. GENERIC is the configuration
used in release builds. NOTES contains documentation of
all possible entries.
tests Regression tests which can be run by Kyua. See tests/README
for additional information.
tools Utilities for regression testing and miscellaneous tasks.
usr.bin User commands.
usr.sbin System administration commands.
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https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/current-stable.html