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Groups > linux.kernel > #1293697

[RFC] Correct usage of swapgs instruction in arch/x86

From Jeff Merkey <linux.mdb@gmail.com>
Newsgroups linux.kernel
Subject [RFC] Correct usage of swapgs instruction in arch/x86
Date 2015-12-17 10:20 +0100
Message-ID <qGCT8-5Pb-13@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

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Propose complete review of Linux architecture and use of swapgs
instruction to enable kgdb, kdb, mdb, kprobes, and other debugging
tools to operate correctly.

Linux currently does not support the above listed tools due to an
architectural limitation in the way Linux deals with
userspace/kernelspace transitions.
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[RFC] Correct usage of swapgs instruction in arch/x86 Jeff Merkey <linux.mdb@gmail.com> - 2015-12-17 10:20 +0100

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