----- "Bernhard Walle" <bwalle@xxxxxxx> wrote: > * Robin Holt [2009-01-09 11:40]: > > > > > > ia64 recently changed the default page size from 16KB to 64KB. Trying > > to analyze a dump taken on a 64KB system on a 16KB page system fails. > > Fix this problem by reallocating and rereading the header when block_size > > mismatches. > > That's only one part of the problem. Your patch doesn't handle ELF > dumps (netdump.c). There are also other parts that need update. I have > a more complete patch that was also tested on PPC, too. Dave, should I > port that patch to the current crash release or don't you want that > changes in crash? Robin's patch should be OK for diskdump vmcores, although I wasn't even aware that the diskdump facility was actively being carried forward into post-kdump kernels? Red Hat stopped supporting diskdump when RHEL5 (2.6.18+) was released, but presuming that RHEL6/ia64 inherits 64k pages, then this patch would be needed to analyze RHEL3/RHEL4 diskdumps on a RHEL6 host. But for kdump vmcores, it seems that kdump_page_size() needs to be made smarter, although I'm not sure where would it get the page size -- vmcoreinfo? And FWIW, the default for ia64 xendumps is hardwared to 16k. Dave -- Crash-utility mailing list Crash-utility@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/crash-utility
