Jay Lan wrote: > Ken'ichi Ohmichi wrote: > >>Hi Jay, > > > Hi Ken'ichi, > > >>My IA64 linux-2.6.27-rc7 kernel could boot by your patches and its kdump >>succeeded, thanks. But I cannot reproduce this problem unfortunately. >>Could you send me your kernel .config file to reproduce it ? > > > > I just emailed you my .config. > > >>And could you please research the reason why the page of virtual address >>0xe0000060031417a8 is excluded ? This patch is for researching it. >>Please apply it against makedumpfile-1.2.9, and create a dump file >>by makedumpfile with "-e 0xe0000060031417a8" option. The reason why >>excluding the page is printed like the following: > > > The excluded page moved. It is at at e0000060030f0000 type: "pmd page". > The change that Dave said helped him did not help me though. Did you initialize the reset_cache variable to 1 at the top of the function? I forgot to put that in my post. In any case, you still want to debug that function. Since you know what the target pfn being skipped is: 60030f0000 >> PAGE_SHIFT, you can dump out the page->flags field in exclude_unnecessary_pages() when it comes up in the loop. Then when you run crash on the "cp" dumpfile, do a "kmem -p 60030f0000", which will show the associated page struct address and a few fields within it. My guess is that the page->flags field that you saw in makedumpfile's exclude_unnecessary_pages() will not be the same as what you see running crash. Dave Dave
