Re: [PATCH] Reading the VDSO area - i386

From: Jeremy Fitzhardinge
Date: Tue Jul 17 2007 - 12:49:04 EST


John Blackwood wrote:
> I was doing some tests that attempt to read the VDSO area of a
> task through either the /proc/pid/mem or ptrace(PTRACE_PEEKTEXT,
> ...) interfaces, and it seems that when the CONFIG_COMPAT_VDSO kernel
> parameter is enabled, we can no longer successfully read the VDSO area
> on i386 kernels.

Thanks. Someone else noticed this recently, and posted a near-identical
patch. But I can't seem to find it right now...

Andrew, Andi: do you remember something like this passing by?

J
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/