Zou, Nanhai wrote: >>-----Original Message----- >>From: Jay Lan [mailto:[EMAIL PROTECTED] >>Sent: 2006年8月30日 9:27 >>To: Zou, Nanhai >>Cc: Linux-IA64; fastboot; Luck, Tony; Dave Anderson; Eric W. Biederman; Horms >>Subject: Re: [Fastboot] IA64 Kdump patch V3 >> >>Jay Lan wrote: >> >>>Hi Nanhai, >>> >>>There is a problem in sn2. The sn2 does not have any memory with >>>a predictible offset. It is not possible to specify a memory location >>>at boot. >>> >>>I modified the efi_initialize_iomem_resources() routine in >>>arch/ia64/kernel/efi.c to calculate crashk_res.start and .end on the >>>fly and uses the "A" of [EMAIL PROTECTED] as size to find a region >>>that fits. >>> >>>Maybe we should separate A and B as two options? >> >>The "B" part of the crashkernel boot option is meaningless to sn2 >>machine and can be very confusing to sn2 users. >> > > > Hi, Jay > It is possible to have only A option and let kernel determine the B > address at startup time. Horms has patch to do that, I will merge it. > That would be great!
> >>>I now have memory reserved, but kernal hanged when executing 'kexec' >>>command. There must be similar issues in kexec. >> >>On further debugging, the kexec dumped core instead at this statement: >>+ elf_rel_set_symbol(&info->rhdr, "__boot_param_base", >>+ &boot_param_base, sizeof(long)); >> >>of elf_ia64_load() in kexec/arch/ia64/kexec-elf-ia64.c. >> >>Examing the memory i found "__boot_param_base" indeed not present in >>the symbol table. >> >>It seems that purgatory/arch/ia64/entry.S does not have a line >>+DECLARE_DATAB(____boot_param_base). >>Is it not needed in other ia64 machines? How does it work in HP >>machines? > > There is a DECLARE_DATA8(__boot_param_base) in purgatory/arch/ia64/entry.S > Are you using kexec-tools-kdump10 patch? Yes, i apply the kexec-tools-kdump10 patch and the "reserve efi memmap and boot param" patch from you. Only these two. Did i miss any? Thanks, - jay > > Thanks > Zou Nan hai > >>Thanks, >> - jay >> _______________________________________________ fastboot mailing list [email protected] https://lists.osdl.org/mailman/listinfo/fastboot
