On 11/08/2011 01:50 PM, Mahesh Jagannath Salgaonkar wrote: > On 11/04/2011 12:35 PM, Dave Young wrote: >> Hi, Thanks for your reply. >> >> When use crashkernel=128M at 256M at a ppc64 machine, kexec -p vmlinuz >> failed with: >> Could not find a free area of memory of faa448 bytes... >> Could not find a free area of memory of 142721d bytes... >> >> Is this a know issue or Is there limitation of the crashkernel base addr? > > On Power, crashkernel base addr must fall inside RMO region. The is > because ppc64 kernel needs some of its memory in the RMO region. The > memory ranges below shows that the system has RMO region of size 128M, > Hence crashkernel base addr @64M should work just fine. Then what about let kernel reservation just fail with such case? And better at the same time give out a warning about base addr from cmdline is out of RMO Or at least we should add this info into kernel doc. > >> >> Detail info as below (define DEBUG when building): >> > ... > ... >> 0000000000000000-0000000008000000 : 0 > ... > ... > > Thanks, > -Mahesh. > > > _______________________________________________ > kexec mailing list > kexec at lists.infradead.org > http://lists.infradead.org/mailman/listinfo/kexec -- Thanks Dave
