Messages in this thread |  | | Date | Fri, 11 May 2001 18:27:39 +0200 | From | Andrea Arcangeli <> | Subject | Re: x86 bootmem corruption |
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On Fri, May 11, 2001 at 05:18:35PM +0100, Alan Cox wrote: > > reserved. This is the fix against 2.4.5pre1. This might explain weird > > crashes and "reserved twice" error messages at boot on highmem systems. > > Reserved twice occurs for two known reasons > > BIOS reporting the same region twice or overlaps (fixed in -ac sent to Linus) > find_smp_config blindly reserves pages that may already be marked as ROM and > thus reserved anyway
when it happens because of a double reserve that's fine I know, it _can_ be harmless, I'm not trying to hide those messages. What I'm saying is that it can _also_ indicate somebody allocated the page before we reserved it and currently x86 allocates from the bootmem allocator before reserving all its pages, that's a bug and I provided the fix.
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