Hi Petr, On Fri, 13 Jan 2012 15:39:03 +0100 Petr Tesarik <ptesarik at suse.cz> wrote: > Dne Pa 13. ledna 2012 04:22:50 tachibana at mxm.nes.nec.co.jp napsal(a): > > Hi Petr, > > > > On 2012/01/12 11:40:08 +0100, Petr Tesarik <ptesarik at suse.cz> wrote: > > > Dne ?t 12. ledna 2012 09:16:06 Atsushi Kumagai napsal(a): > > > > Hello Petr, > > > > > > > > On Tue, 10 Jan 2012 19:14:32 +0100 > > > > > > > > Petr Tesarik <ptesarik at suse.cz> wrote: > > > > > Ken'ichi Ohmichi, please note that makedumpfile is also affected by > > > > > this deficiency. On my test system, it will fail to produce any > > > > > output if I set dump level to anything greater than zero: > > > > > > > > > > makedumpfile -c -d 31 -x vmlinux-3.0.13-0.5-pae.debug vmcore kdump.31 > > > > > readmem: Can't convert a physical address(34a012b4) to offset. > > > > > readmem: type_addr: 0, addr:f4a012b4, size:4 > > > > > get_mm_discontigmem: Can't get node_start_pfn. > > > > > > > > > > makedumpfile Failed. > > > > > > > > > > However, fixing this for makedumpfile is harder, and it will most > > > > > likely require a few more lines in VMCOREINFO, because debug symbols > > > > > may not be available at dump time, and I can't see any alternative > > > > > method to locate the remapped regions. > > > > > > > > Thank you for your indication. > > > > > > > > Could you send me your kernel configuration so that I can reproduce the > > > > issue ? > > > > > > Attached. The most important settings are: > > > > > > CONFIG_X86_32=y > > > CONFIG_DISCONTIGMEM_MANUAL=y > > > > > > This also depends on CONFIG_NUMA=y > > > > > > FYI my test system runs 3.0.15 (because that's used for SLES11 SP2), but > > > the same issue also exists in any later version. > > > > > > Petr Tesarik > > > SUSE Linux > > > > Thank you for the config. I will fix makedumpfile. However it will take > > time to solve various issues because I've never run makedumpfile on 3.0.X. > > This patch works for me, at least when using the "-x" command-line switch. To > make it perfect, we'll also need an accompanying patch to the kernel to store > the appropriate values in VMCOREINFO. > > Signed-off-by: Petr Tesarik <ptesarik at suse.cz> Thank you for the patch. I will review it. Thanks Atsushi Kumagai
