Commit be0a3912 authored by Chuck Ebbert's avatar Chuck Ebbert Committed by Linus Torvalds
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[PATCH] i386: more vsyscall documentation

Document a limitation of vsyscall-sysenter, since patches to fix it have
been rejected.
Signed-off-by: default avatarChuck Ebbert <>
Signed-off-by: default avatarAndrew Morton <>
Signed-off-by: default avatarLinus Torvalds <>
parent 635cf99a
......@@ -21,6 +21,9 @@
* instruction clobbers %esp, the user's %esp won't even survive entry
* into the kernel. We store %esp in %ebp. Code in entry.S must fetch
* arg6 from the stack.
* You can not use this vsyscall for the clone() syscall because the
* three dwords on the parent stack do not get copied to the child.
.globl __kernel_vsyscall
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