From: James Bottomley <James.Bottomley@HansenPartnership.com>
To: Gabriel Paubert <paubert@iram.es>
Cc: Ingo Molnar <mingo@elte.hu>,
James Bottomley <James.Bottomley@HansenPartnership.com>,
linux-kernel@vger.kernel.org,
Linus Torvalds <torvalds@transmeta.com>
Subject: Re: Boot failure in 2.5.31 BK with new TLS patch
Date: Sat, 17 Aug 2002 12:20:44 -0500 [thread overview]
Message-ID: <200208171720.g7HHKim03809@localhost.localdomain> (raw)
In-Reply-To: Message from Gabriel Paubert <paubert@iram.es> of "Sat, 17 Aug 2002 19:09:26 +0200." <3D5E8346.5010101@iram.es>
paubert@iram.es said:
> Hey no, it's cpu_gdt_table that must be aligned. That one does not
> matter, it's only used once for the lgdt instruction...
Actually, the intel manual recommends (but doesn't require) a wierd alignment
for the descriptors. It recommends aligning them at an address which is 2 MOD
4 to avoid possible alignment check faults in user mode. Not that I think we
can ever run into the problem, but we should probably obey the recommendation.
I'll fix this up as well.
James
next prev parent reply other threads:[~2002-08-17 17:16 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-08-17 0:31 Boot failure in 2.5.31 BK with new TLS patch James Bottomley
2002-08-17 6:51 ` Ingo Molnar
2002-08-17 15:16 ` James Bottomley
2002-08-17 16:17 ` Ingo Molnar
2001-11-02 8:20 ` Pavel Machek
2002-08-17 17:09 ` Gabriel Paubert
2002-08-17 17:18 ` Ingo Molnar
2002-08-17 17:20 ` James Bottomley [this message]
2002-08-17 18:26 ` Gabriel Paubert
2002-08-17 18:36 ` Linus Torvalds
2002-08-17 18:42 ` Ingo Molnar
2002-08-17 18:50 ` Gabriel Paubert
2002-08-17 18:53 ` Ingo Molnar
2002-08-17 21:42 ` Ingo Molnar
2002-08-18 3:29 ` Linus Torvalds
2002-08-17 22:34 ` James Bottomley
2002-08-18 8:35 ` Ingo Molnar
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