]> git.baikalelectronics.ru Git - kernel.git/commit
[PATCH] i386: load_tls() fix
authorZachary Amsden <zach@vmware.com>
Sat, 3 Sep 2005 22:56:39 +0000 (15:56 -0700)
committerLinus Torvalds <torvalds@evo.osdl.org>
Mon, 5 Sep 2005 07:06:11 +0000 (00:06 -0700)
commitf23da04e6bb2f7d45d703644b7e6408a0e509454
tree89bca4c0a0818d1e217c76866f62c1b133a425d7
parent1fd01a6d808594fbc9219e42455e8af2fdc08460
[PATCH] i386: load_tls() fix

Subtle fix: load_TLS has been moved after saving %fs and %gs segments to avoid
creating non-reversible segments.  This could conceivably cause a bug if the
kernel ever needed to save and restore fs/gs from the NMI handler.  It
currently does not, but this is the safest approach to avoiding fs/gs
corruption.  SMIs are safe, since SMI saves the descriptor hidden state.

Signed-off-by: Zachary Amsden <zach@vmware.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
arch/i386/kernel/process.c