Hi Andy, Seems you are the person to talk now :). Good to see some activity in the "entry" area of the kernel. I found some (very) old patches in this area lying around and some time to dust them off.
Any chance you can review them? They were redone on top of 22f2aa4a0361707a5cfb1de9d45260b39965dead (x86/entry-devel in your tree) and this kernel is now running happily on my laptop. I didn't try any benchmarking, though. Greetings, Alexander Alexander van Heukelum (3): x86_64: remove KERNEL_STACK_OFFSET from THREAD_INFO macro x86_64: don't use KERNEL_STACK_OFFSET for syscall and sysenter x86_64, entry: Create IRET-compatible stack frame at syscall entry arch/x86/ia32/ia32entry.S | 34 ++++++++-------- arch/x86/include/asm/calling.h | 1 + arch/x86/include/asm/thread_info.h | 8 ++-- arch/x86/kernel/cpu/common.c | 2 +- arch/x86/kernel/entry_64.S | 82 ++++++++++++-------------------------- arch/x86/kernel/process_64.c | 3 +- arch/x86/kernel/smpboot.c | 3 +- arch/x86/xen/smp.c | 3 +- 8 files changed, 50 insertions(+), 86 deletions(-) -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
