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Re: %gs:0 thread pseudoregister in oskit-mach

From: Roland McGrath
Subject: Re: %gs:0 thread pseudoregister in oskit-mach
Date: Tue, 23 Apr 2002 17:00:35 -0400 (EDT)

Ah, I was thinking wrong.  The segment limit field is only 20 bits, so for
segments larger than that you set the SZ_G bit and the granularity of the
limit is 4kb (fill_descriptor in oskit/x86/seg.h does this).  So try making
ldt.c use VM_MAX_ADDRESS-VM_MIN_ADDRESS-PAGE_SIZE, because the fencepost
error is at 4k granularity.

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