----- "Ken'ichi Ohmichi" <oomichi at mxs.nes.nec.co.jp> wrote: > Hi Cai, > > On Tue, 31 Aug 2010 04:29:02 -0400 (EDT) > CAI Qian <caiqian at redhat.com> wrote: > > > > > I'd like to reproduce the same problem on my machine, > > > > > could you please send your kernel .config file ? > > > > > > > > Attached. > > > > > > Thank you. > > > The linux-2.6.36-rc2 kernel is building now with your .config > file. > > > After building, I will test makedumpfile on the kernel. > > I built linux-2.6.36-rc2 kernel with your .config file, but it gets a > panic while 1st-kernel is booting. I'm not digging the cause. Another pointer is that 2.6.35-rc1 worked fine for me, while 2.6.35-rc4 and beyond started to fail. > So I built linux-2.6.36-rc2 kernel with my .config file instead, and > it > can boot and the kdump is successful. But makedumpfile runs > successfully, > so I cannot reproduce the problem which you reported. > > I will try linux-2.6.36-rc3 kernel with your .config file later. > BTW, do you have the way how I get the compressed copy of your > /proc/vmcore ? > I'd like to research the problem directly. > > > > > >> readmem: Can't seek the dump memory(/proc/vmcore). Invalid > > > argument > > > > > > lseek(2) failed with "Invalid argument", so the problem may be due > to > > > an > > > invalid offset. I'd like to know its value, so can you try the > > > attached > > > patch in the condition makedumpfile fails ? > > > And can you send the output of `readelf -a /proc/vmcore` ? > > Here you go, > > readmem: Can't seek the dump memory(/proc/vmcore). Invalid argument > > readmem: type_addr: 0, addr:ffff880480027000, size:32 > > The above output does not include the offset value which should be > printed by my previous patch. Could you check the patch is applied > to right place (lseek(2) call in readmem() function) ? > In addiction, could you operate makedumpfile with "-D" option ? > > > Thanks > Ken'ichi Ohmichi > > _______________________________________________ > kexec mailing list > kexec at lists.infradead.org > http://lists.infradead.org/mailman/listinfo/kexec
