Messages in this thread Patch in this message | | | Date | Sat, 25 Feb 2006 03:02:42 -0500 | From | Chuck Ebbert <> | Subject | [patch] i386: more vsyscall documentation |
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Document a limitation of vsyscall-sysenter, since patches to fix it have been rejected.
Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com>
--- 2.6.16-rc4-64.orig/arch/i386/kernel/vsyscall-sysenter.S +++ 2.6.16-rc4-64/arch/i386/kernel/vsyscall-sysenter.S @@ -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. */ .text .globl __kernel_vsyscall -- Chuck "Equations are the Devil's sentences." --Stephen Colbert - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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