> -----Original Message----- > From: Horms [mailto:horms@xxxxxxxxxxxx] > Sent: 2006年11月2日 16:24 > To: Zou, Nanhai > Cc: Mel Gorman; Andy Whitcroft; linux-ia64@xxxxxxxxxxxxxxx; Linus Torvalds; > Bob Picco; Andrew Morton; Dave Hansen; Andi Kleen; Benjamin Herrenschmidt; Paul > Mackerras; Keith Mannthey; Luck, Tony; KAMEZAWA Hiroyuki; Yasunori Goto; > Khalid Aziz > Subject: Re: 05e0caad3b7bd0d0fbeff980bca22f186241a501 breaks ia64 kdump > > On Thu, Nov 02, 2006 at 10:13:12AM +0800, Zou, Nanhai wrote: > > Hi Neil, > > Does the attached patch fix the issue? > > I gave your patch a quick test. It does seem to make the problem go > away, but it does not seem to be correct. It gives > > early_node_map[1] active PFN ranges > 0: 0 -> 32768 > (end of list) > > But it really should be 16384 -> 32768 > Finally I've gotten some time to look detail into the problem. It should be the filter_rsvd_memory in paging_init -> efi_memmap_walk(filter_rsvd_memory, count_node_pages) filter out the kernel image and other rsvd regions in rsvd_regions... It is strange we don't see the oops when booting the first kernel。 efi_memmap_walk(filter_rsvd_memory, count_node_pages) looks questionable to me even without Mel's patch. I will consider it more and provide patch to tomorrow. Thanks Zou Nan hai - To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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