Hi Mika, >Please check your platforms >arch/arm/mach-<yourmach>/include/mach/memory.h and set both >_SECTION_SIZE_BITS and _MAX_PHYSMEM_BITS to be the same as defined in >the header. If crash works with the correct values, we just need to Both SECTION_SIZE_BITS 28 and MAX_PHYSMEM_BITS 32 are defined correctly in the kernel header and defs.h. Although, still I got >> crash: invalid kernel virtual address: f67f000 type: "page table" It might come form my vmcore file's incorrectness. Currently my vmcore contains the following, Program Headers: Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align NOTE 0x000074 0x00000000 0x00000000 0x00000 0x00000 0 LOAD 0x000074 0xc0000000 0x00000000 0x20000000 0x20000000 RWE 0 But actual mapping is, Virtual 0xc0000000-0xcfffffff corresponds Physical 0x00000000-0x0fffffff and Virtual 0xd0000000-0xdfffffff corresponds Physical 0x40000000-0x4fffffff Then I tried to prepend the following header instead, Program Headers: Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align NOTE 0x000094 0x00000000 0x00000000 0x00000 0x00000 0 LOAD 0x000094 0xc0000000 0x00000000 0x10000000 0x10000000 RWE 0 LOAD 0x10000094 0xd0000000 0x40000000 0x10000000 0x10000000 RWE 0 This time crash does not recognize the vmcore file. Perhaps I have to change VTOP/PTOV macros accordingly? Best Regards, Takuo -------------- >On Wed, May 25, 2011 at 10:11 AM, <takuo.koguchi.sw@xxxxxxxxxxx> wrote: >>>... But I got another error later, which I will report later. >> Now I set _SECTION_SIZE_BITS 22 and see what happens next. >> I found that readmem for "page table" failed while excuting init_unwind_tables() in unwind_arm.c and crash exited. >> >> crash: invalid kernel virtual address: f67f000 type: "page table" >> >> Instead of investigating this issue, I continue by skipping init_unwind_tables for a while. >> Because crash gives me a prompt now and I am quite interested in whether it gives me some useful information or not. >> > >Please check your platforms >arch/arm/mach-<yourmach>/include/mach/memory.h and set both >_SECTION_SIZE_BITS and _MAX_PHYSMEM_BITS to be the same as defined in >the header. If crash works with the correct values, we just need to >find out some way of guessing these. > >-- >Crash-utility mailing list >Crash-utility@xxxxxxxxxx >https://www.redhat.com/mailman/listinfo/crash-utility >
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