Re: x86 bootmem corruption
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. Andrea - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: x86 bootmem corruption
> 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 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: x86 bootmem corruption
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 - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: x86 bootmem corruption
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. Andrea - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
