[lkml]   [2000]   [Feb]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: how does kernel get the "current" task struct?
"H. Peter Anvin" wrote:
> Wrong. It's %esp with a whole bunch of bits *MASKED*. This works
> because the per-task area -- which includes the kernel stack -- is 8K
> in size and aligned on an 8K boundary.

Could you check the buddy allocator?
I think that the zoned buddy allocator aligns memory allocations
relative to the beginning of the zone, and not relative to the physical

I.e. if a zone starts at 0x00001000, then an 8K allocation will be
unaligned. This could be a problem for CONFIG_DISCONTIG_MEM computers
[normal i386 zones start at 0, 16MB, 4GB --> no alignment problems]


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
Please read the FAQ at

 \ /
  Last update: 2005-03-22 13:56    [W:0.099 / U:0.108 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site