Dmitry Safonov 2a4d0c627f x86/selftests: Add clobbers for int80 on x86_64 ... Kernel erases R8..R11 registers prior returning to userspace from int80: https://lkml.org/lkml/2009/10/1/164 GCC can reuse these registers and doesn't expect them to change during syscall invocation. I met this kind of bug in CRIU once GCC 6.1 and CLANG stored local variables in those registers and the kernel zerofied them during syscall: 990d33f1a1 By that reason I suggest to add those registers to clobbers in selftests. Also, as noted by Andy - removed unneeded clobber for flags in INT $0x80 inline asm. Signed-off-by: Dmitry Safonov <dsafonov@virtuozzo.com> Acked-by: Andy Lutomirski <luto@kernel.org> Cc: 0x7f454c46@gmail.com Cc: Borislav Petkov <bp@alien8.de> Cc: Borislav Petkov <bp@suse.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Shuah Khan <shuah@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kselftest@vger.kernel.org Link: http://lkml.kernel.org/r/20170213101336.20486-1-dsafonov@virtuozzo.com Signed-off-by: Ingo Molnar <mingo@kernel.org>		2017-03-01 10:24:56 +01:00
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fault-injection	fault-injection: fix failcmd.sh warning	2012-07-31 18:42:38 -07:00
ktest	These are various fixes that I have made and never got around to pushing.	2017-02-27 23:07:59 -08:00
nvdimm	Merge branch 'for-4.10/libnvdimm' into libnvdimm-for-next	2016-12-17 15:08:10 -08:00
radix-tree	radix tree test suite: Add config option for map shift	2017-02-13 21:44:10 -05:00
selftests	x86/selftests: Add clobbers for int80 on x86_64	2017-03-01 10:24:56 +01:00