629c8b4cdb
Fix the problem that makedumpfile sometimes fails on x86_64 machine. This patch adds the symbol "phys_base" to a vmcoreinfo data. The vmcoreinfo data has the minimum debugging information only for dump filtering. makedumpfile (dump filtering command) gets it to distinguish unnecessary pages, and makedumpfile creates a small dumpfile. On x86_64 kernel which compiled with CONFIG_PHYSICAL_START=0x0 and CONFIG_RELOCATABLE=y, makedumpfile fails like the following: # makedumpfile -d31 /proc/vmcore dumpfile The kernel version is not supported. The created dumpfile may be incomplete. _exclude_free_page: Can't get next online node. makedumpfile Failed. # The cause is the lack of the symbol "phys_base" in a vmcoreinfo data. If the symbol "phys_base" does not exist, makedumpfile considers an x86_64 kernel as non relocatable. As the result, makedumpfile misunderstands the physical address where the kernel is loaded, and it cannot translate a kernel virtual address to physical address correctly. To fix this problem, this patch adds the symbol "phys_base" to a vmcoreinfo data. Signed-off-by: Ken'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: <stable@kernel.org> Acked-by: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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| .. | ||
| acpi | ||
| cpu | ||
| .gitignore | ||
| Makefile | ||
| alternative.c | ||
| aperture_64.c | ||
| apic_32.c | ||
| apic_64.c | ||
| apm_32.c | ||
| asm-offsets.c | ||
| asm-offsets_32.c | ||
| asm-offsets_64.c | ||
| audit_64.c | ||
| bootflag.c | ||
| bugs_64.c | ||
| cpuid.c | ||
| crash.c | ||
| crash_dump_32.c | ||
| crash_dump_64.c | ||
| doublefault_32.c | ||
| ds.c | ||
| e820_32.c | ||
| e820_64.c | ||
| early-quirks.c | ||
| early_printk.c | ||
| efi.c | ||
| efi_32.c | ||
| efi_64.c | ||
| efi_stub_32.S | ||
| efi_stub_64.S | ||
| entry_32.S | ||
| entry_64.S | ||
| genapic_64.c | ||
| genapic_flat_64.c | ||
| geode_32.c | ||
| head64.c | ||
| head_32.S | ||
| head_64.S | ||
| hpet.c | ||
| i386_ksyms_32.c | ||
| i387.c | ||
| i8237.c | ||
| i8253.c | ||
| i8259_32.c | ||
| i8259_64.c | ||
| init_task.c | ||
| io_apic_32.c | ||
| io_apic_64.c | ||
| io_delay.c | ||
| ioport.c | ||
| irq_32.c | ||
| irq_64.c | ||
| k8.c | ||
| kdebugfs.c | ||
| kprobes.c | ||
| ldt.c | ||
| machine_kexec_32.c | ||
| machine_kexec_64.c | ||
| mca_32.c | ||
| mfgpt_32.c | ||
| microcode.c | ||
| module_32.c | ||
| module_64.c | ||
| mpparse_32.c | ||
| mpparse_64.c | ||
| msr.c | ||
| nmi_32.c | ||
| nmi_64.c | ||
| numaq_32.c | ||
| paravirt.c | ||
| paravirt_patch_32.c | ||
| paravirt_patch_64.c | ||
| pci-calgary_64.c | ||
| pci-dma_32.c | ||
| pci-dma_64.c | ||
| pci-gart_64.c | ||
| pci-nommu_64.c | ||
| pci-swiotlb_64.c | ||
| pcspeaker.c | ||
| pmtimer_64.c | ||
| process_32.c | ||
| process_64.c | ||
| ptrace.c | ||
| quirks.c | ||
| reboot.c | ||
| reboot_fixups_32.c | ||
| relocate_kernel_32.S | ||
| relocate_kernel_64.S | ||
| rtc.c | ||
| scx200_32.c | ||
| setup64.c | ||
| setup_32.c | ||
| setup_64.c | ||
| sigframe_32.h | ||
| signal_32.c | ||
| signal_64.c | ||
| smp_32.c | ||
| smp_64.c | ||
| smpboot_32.c | ||
| smpboot_64.c | ||
| smpcommon_32.c | ||
| srat_32.c | ||
| stacktrace.c | ||
| step.c | ||
| summit_32.c | ||
| sys_i386_32.c | ||
| sys_x86_64.c | ||
| syscall_64.c | ||
| syscall_table_32.S | ||
| tce_64.c | ||
| test_nx.c | ||
| test_rodata.c | ||
| time_32.c | ||
| time_64.c | ||
| tls.c | ||
| tls.h | ||
| topology.c | ||
| trampoline_32.S | ||
| trampoline_64.S | ||
| traps_32.c | ||
| traps_64.c | ||
| tsc_32.c | ||
| tsc_64.c | ||
| tsc_sync.c | ||
| verify_cpu_64.S | ||
| vm86_32.c | ||
| vmi_32.c | ||
| vmiclock_32.c | ||
| vmlinux.lds.S | ||
| vmlinux_32.lds.S | ||
| vmlinux_64.lds.S | ||
| vsmp_64.c | ||
| vsyscall_64.c | ||
| x8664_ksyms_64.c | ||