Konstantin Belousov f2c18deb0e Fix handling of one more possible exception on return to usermode. ... If %ss is loaded with a segment pointing to a non-present descriptor by the IRETD instruction, a kernel-mode #SS exception is generated. Resulting T_STKFLT trap must be checked against doreti_iret_fault location and handled, otherwise userspace may panic the kernel. Note that this is i386 variant of FreeBSD-SA-15:21.amd64, but unlike amd64, there is no swapgs on i386 and the issue is arguably not exploitable. Reported by: Maxime Villard <max@m00nbsd.net> Tested by: pho Sponsored by: The FreeBSD Foundation MFC after: 1 week		2017-07-08 11:07:39 +00:00
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acpica	If x86 CPU implementation of the MWAIT instruction reasonably	2015-05-09 12:28:48 +00:00
bios	Remove Micro Channel Architecture support. Of the commonly available	2017-02-15 23:04:25 +00:00
cloudabi32	Move struct syscall_args syscall arguments parameters container into	2017-06-12 21:03:23 +00:00
conf	Garbage collect kernel option TWA_FLASH_FIRMWARE	2017-07-03 19:33:50 +00:00
i386	Fix handling of one more possible exception on return to usermode.	2017-07-08 11:07:39 +00:00
ibcs2	Remove register keyword from sys/ and ANSIfy prototypes	2017-05-17 00:34:34 +00:00
include	Clean up MD pollution of bus_dma.h:	2017-07-01 05:35:29 +00:00
isa	Fix indent.	2017-06-24 10:19:06 +00:00
linux	Add support for musl consumers to the Linuxulator.	2017-07-03 10:24:49 +00:00
pci	Remove pc98 support completely.	2017-01-28 02:22:15 +00:00
xbox	After r261980, the local ptr variable in xbox_init() is no longer used,	2014-02-16 22:48:36 +00:00
Makefile	Delete duplicate tags entry I introduced in -r223901.	2011-07-15 17:27:26 +00:00