The attached patch is for: * kexec: Increase the upper limit for RAM segments (LP: #1663400)
This patch applies cleanly on Zesty kexec-tools: https://pastebin.ubuntu.com/23995216/ [TESTING with Zesty kexec-tools on hardware] ubuntu@ubuntu:~$ dpkg -l | grep kexec-tools ii kexec-tools 1:2.0.14-1ubuntu2.1 arm64 tools to support fast kexec reboots ubuntu@ubuntu:~$ ubuntu@ubuntu:~$ sudo kexec -d -l /boot/vmlinuz-4.7.0-2-generic --reuse-cmd --initrd=/boot/initrd.img-4.7.0-2-generic arch_process_options:141: command_line: root=UUID=6c2f8a0a-5a0a-4f7b-8427-6e119e950aaa ro splash quiet vt.handoff=7 arch_process_options:143: initrd: /boot/initrd.img-4.7.0-2-generic arch_process_options:144: dtb: (null) Try gzip decompression. kernel: 0xffffa9e5e010 kernel_size: 0xf36800 get_memory_ranges_iomem_cb: 0000000000200000 - 000000000020ffff : System RAM get_memory_ranges_iomem_cb: 0000000000820000 - 000000000307ffff : System RAM get_memory_ranges_iomem_cb: 0000000003080000 - 000000000308ffff : System RAM get_memory_ranges_iomem_cb: 0000000003090000 - 00000000031fffff : System RAM get_memory_ranges_iomem_cb: 0000000003200000 - 00000000033fffff : System RAM get_memory_ranges_iomem_cb: 0000000003410000 - 000000000589ffff : System RAM get_memory_ranges_iomem_cb: 00000000058a0000 - 00000000058affff : System RAM get_memory_ranges_iomem_cb: 00000000058b0000 - 00000000058bffff : System RAM get_memory_ranges_iomem_cb: 00000000058c0000 - 000000000597ffff : System RAM get_memory_ranges_iomem_cb: 0000000005980000 - 0000000005987fff : System RAM get_memory_ranges_iomem_cb: 0000000005988000 - 000000000598bfff : System RAM get_memory_ranges_iomem_cb: 000000000598c000 - 0000000005a0ffff : System RAM get_memory_ranges_iomem_cb: 0000000005a10000 - 0000000005aaffff : System RAM get_memory_ranges_iomem_cb: 0000000005ab0000 - 0000000005ca0fff : System RAM get_memory_ranges_iomem_cb: 0000000005ca1000 - 0000000008caffff : System RAM get_memory_ranges_iomem_cb: 0000000008cb0000 - 0000000008cfffff : System RAM get_memory_ranges_iomem_cb: 0000000008d00000 - 0000000008edffff : System RAM get_memory_ranges_iomem_cb: 0000000008ee0000 - 0000000008ee0fff : System RAM get_memory_ranges_iomem_cb: 0000000008ee1000 - 0000000008ee3fff : System RAM get_memory_ranges_iomem_cb: 0000000008ee4000 - 0000000008eeffff : System RAM get_memory_ranges_iomem_cb: 0000000008ef0000 - 00000000092affff : System RAM get_memory_ranges_iomem_cb: 00000000092b0000 - 00000000092dffff : System RAM get_memory_ranges_iomem_cb: 00000000092e0000 - 0000000009422fff : System RAM get_memory_ranges_iomem_cb: 0000000009423000 - 000000000949ffff : System RAM get_memory_ranges_iomem_cb: 00000000094a0000 - 000000000957ffff : System RAM get_memory_ranges_iomem_cb: 0000000009580000 - 000000000958cfff : System RAM get_memory_ranges_iomem_cb: 000000000958d000 - 00000000098cffff : System RAM get_memory_ranges_iomem_cb: 00000000098d0000 - 00000000098d0fff : System RAM get_memory_ranges_iomem_cb: 00000000098d1000 - 00000000098dbfff : System RAM get_memory_ranges_iomem_cb: 00000000098dc000 - 000000000e8bffff : System RAM get_memory_ranges_iomem_cb: 000000000e8c0000 - 000000000e8effff : System RAM get_memory_ranges_iomem_cb: 000000000e8f0000 - 000000000fffffff : System RAM get_memory_ranges_iomem_cb: 0000000010800000 - 0000000017feffff : System RAM get_memory_ranges_iomem_cb: 000000001c020000 - 000000001c7fffff : System RAM get_memory_ranges_iomem_cb: 000000001c800000 - 000000001c80ffff : System RAM get_memory_ranges_iomem_cb: 000000001c810000 - 000000007efbffff : System RAM get_memory_ranges_iomem_cb: 000000007efc0000 - 000000007efdffff : System RAM get_memory_ranges_iomem_cb: 000000007efe0000 - 000000007efeffff : System RAM get_memory_ranges_iomem_cb: 000000007eff0000 - 000000007effffff : System RAM get_memory_ranges_iomem_cb: 000000007f000000 - 00000017ffffffff : System RAM elf_arm64_probe: Not an ELF executable. image_arm64_load: kernel_segment: 0000000000a00000 image_arm64_load: text_offset: 0000000000080000 image_arm64_load: image_size: 0000000001030000 image_arm64_load: phys_offset: 0000000000200000 image_arm64_load: vp_offset: ffffffffffffffff image_arm64_load: PE format: yes read_1st_dtb: found /sys/firmware/fdt initrd: base 3410000, size 1c7b7e4h (29865956) dtb_set_initrd: start 54591488, end 84457444, size 29865956 (29165 KiB) dtb: base 1ab0000, size 1f2h (498) sym: sha256_starts info: 12 other: 00 shndx: 1 value: e80 size: 58 sym: sha256_starts value: 1ab1e80 addr: 1ab1014 machine_apply_elf_rel: CALL26 5800065394000000->580006539400039b sym: sha256_update info: 12 other: 00 shndx: 1 value: 2de0 size: c sym: sha256_update value: 1ab3de0 addr: 1ab1030 machine_apply_elf_rel: CALL26 eb16027f94000000->eb16027f94000b6c sym: sha256_finish info: 12 other: 00 shndx: 1 value: 2df0 size: 1bc sym: sha256_finish value: 1ab3df0 addr: 1ab1048 machine_apply_elf_rel: CALL26 d280040294000000->d280040294000b6a sym: memcmp info: 12 other: 00 shndx: 1 value: 604 size: 34 sym: memcmp value: 1ab1604 addr: 1ab1058 machine_apply_elf_rel: CALL26 340003a094000000->340003a09400016b sym: printf info: 12 other: 00 shndx: 1 value: 524 size: 80 sym: printf value: 1ab1524 addr: 1ab1068 machine_apply_elf_rel: CALL26 5800042094000000->580004209400012f sym: printf info: 12 other: 00 shndx: 1 value: 524 size: 80 sym: printf value: 1ab1524 addr: 1ab1070 machine_apply_elf_rel: CALL26 5800043694000000->580004369400012d sym: printf info: 12 other: 00 shndx: 1 value: 524 size: 80 sym: printf value: 1ab1524 addr: 1ab1084 machine_apply_elf_rel: CALL26 f100827f94000000->f100827f94000128 sym: printf info: 12 other: 00 shndx: 1 value: 524 size: 80 sym: printf value: 1ab1524 addr: 1ab10a0 machine_apply_elf_rel: CALL26 5800032094000000->5800032094000121 sym: printf info: 12 other: 00 shndx: 1 value: 524 size: 80 sym: printf value: 1ab1524 addr: 1ab10a8 machine_apply_elf_rel: CALL26 38736a8194000000->38736a819400011f sym: printf info: 12 other: 00 shndx: 1 value: 524 size: 80 sym: printf value: 1ab1524 addr: 1ab10b8 machine_apply_elf_rel: CALL26 f100827f94000000->f100827f9400011b sym: printf info: 12 other: 00 shndx: 1 value: 524 size: 80 sym: printf value: 1ab1524 addr: 1ab10c8 machine_apply_elf_rel: CALL26 5280002094000000->5280002094000117 sym: .data info: 03 other: 00 shndx: 4 value: 0 size: 0 sym: .data value: 1ab4028 addr: 1ab10e0 machine_apply_elf_rel: ABS64 0000000000000000->0000000001ab4028 sym: .rodata.str1.1 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.1 value: 1ab3fb8 addr: 1ab10e8 machine_apply_elf_rel: ABS64 0000000000000000->0000000001ab3fb8 sym: .rodata.str1.1 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.1 value: 1ab3fd8 addr: 1ab10f0 machine_apply_elf_rel: ABS64 0000000000000000->0000000001ab3fd8 sym: .rodata.str1.1 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.1 value: 1ab3fe8 addr: 1ab10f8 machine_apply_elf_rel: ABS64 0000000000000000->0000000001ab3fe8 sym: .rodata.str1.1 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.1 value: 1ab3fee addr: 1ab1100 machine_apply_elf_rel: ABS64 0000000000000000->0000000001ab3fee sym: .rodata.str1.1 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.1 value: 1ab3ff0 addr: 1ab1108 machine_apply_elf_rel: ABS64 0000000000000000->0000000001ab3ff0 sym: printf info: 12 other: 00 shndx: 1 value: 524 size: 80 sym: printf value: 1ab1524 addr: 1ab111c machine_apply_elf_rel: CALL26 9400000094000000->9400000094000102 sym: setup_arch info: 12 other: 00 shndx: 1 value: e78 size: 4 sym: setup_arch value: 1ab1e78 addr: 1ab1120 machine_apply_elf_rel: CALL26 9400000094000000->9400000094000356 sym: verify_sha256_digest info: 12 other: 00 shndx: 1 value: 0 size: e0 sym: verify_sha256_digest value: 1ab1000 addr: 1ab1124 machine_apply_elf_rel: CALL26 3400004094000000->3400004097ffffb7 sym: post_verification_setup_arch info: 12 other: 00 shndx: 1 value: e74 size: 4 sym: post_verification_setup_arch value: 1ab1e74 addr: 1ab1134 machine_apply_elf_rel: JUMP26 0000000014000000->0000000014000350 sym: .rodata.str1.1 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.1 value: 1ab4000 addr: 1ab1138 machine_apply_elf_rel: ABS64 0000000000000000->0000000001ab4000 sym: putchar info: 12 other: 00 shndx: 1 value: e70 size: 4 sym: putchar value: 1ab1e70 addr: 1ab11cc machine_apply_elf_rel: CALL26 2a1303e194000000->2a1303e194000329 sym: putchar info: 12 other: 00 shndx: 1 value: e70 size: 4 sym: putchar value: 1ab1e70 addr: 1ab1240 machine_apply_elf_rel: CALL26 b9406ba194000000->b9406ba19400030c sym: putchar info: 12 other: 00 shndx: 1 value: e70 size: 4 sym: putchar value: 1ab1e70 addr: 1ab149c machine_apply_elf_rel: CALL26 f94037a194000000->f94037a194000275 sym: .rodata.str1.1 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.1 value: 1ab4012 addr: 1ab14a8 machine_apply_elf_rel: ABS64 0000000000000000->0000000001ab4012 sym: vsprintf info: 12 other: 00 shndx: 1 value: 140 size: 368 sym: vsprintf value: 1ab1140 addr: 1ab1518 machine_apply_elf_rel: CALL26 a8d07bfd94000000->a8d07bfd97ffff0a sym: vsprintf info: 12 other: 00 shndx: 1 value: 140 size: 368 sym: vsprintf value: 1ab1140 addr: 1ab1598 machine_apply_elf_rel: CALL26 a8d17bfd94000000->a8d17bfd97fffeea sym: purgatory info: 12 other: 00 shndx: 1 value: 110 size: 28 sym: purgatory value: 1ab1110 addr: 1ab1648 machine_apply_elf_rel: CALL26 5800001194000000->5800001197fffeb2 sym: arm64_kernel_entry info: 10 other: 00 shndx: 4 value: 120 size: 8 sym: arm64_kernel_entry value: 1ab4148 addr: 1ab164c machine_apply_elf_rel: LD_PREL_LO19 5800000058000011->58000000580157f1 sym: arm64_dtb_addr info: 10 other: 00 shndx: 4 value: 128 size: 8 sym: arm64_dtb_addr value: 1ab4150 addr: 1ab1650 machine_apply_elf_rel: LD_PREL_LO19 aa1f03e158000000->aa1f03e158015800 sym: sha256_process info: 12 other: 00 shndx: 1 value: ed8 size: 1dec sym: sha256_process value: 1ab1ed8 addr: 1ab3d4c machine_apply_elf_rel: CALL26 eb15027f94000000->eb15027f97fff863 sym: memcpy info: 12 other: 00 shndx: 1 value: 5e4 size: 20 sym: memcpy value: 1ab15e4 addr: 1ab3dac machine_apply_elf_rel: JUMP26 9100c29314000000->9100c29317fff60e sym: memcpy info: 12 other: 00 shndx: 1 value: 5e4 size: 20 sym: memcpy value: 1ab15e4 addr: 1ab3dc4 machine_apply_elf_rel: CALL26 d280001794000000->d280001797fff608 sym: sha256_process info: 12 other: 00 shndx: 1 value: ed8 size: 1dec sym: sha256_process value: 1ab1ed8 addr: 1ab3dd4 machine_apply_elf_rel: CALL26 17ffffd394000000->17ffffd397fff841 sym: .data info: 03 other: 00 shndx: 4 value: 0 size: 0 sym: .data value: 1ab4158 addr: 1ab3fb0 machine_apply_elf_rel: ABS64 0000000000000000->0000000001ab4158 kexec_load: entry = 0x1ab1640 flags = 0xb70000 nr_segments = 4 segment[0].buf = 0xffffa9e5e010 segment[0].bufsz = 0xf36800 segment[0].mem = 0xa80000 segment[0].memsz = 0x1030000 segment[1].buf = 0x3c5cf1a0 segment[1].bufsz = 0x1f2 segment[1].mem = 0x1ab0000 segment[1].memsz = 0x1000 segment[2].buf = 0x3c5cf760 segment[2].bufsz = 0x3198 segment[2].mem = 0x1ab1000 segment[2].memsz = 0x4000 segment[3].buf = 0xffffa81e2010 segment[3].bufsz = 0x1c7b7e4 segment[3].mem = 0x3410000 segment[3].memsz = 0x1c7c000 ubuntu@ubuntu:~$ sudo kexec -e ubuntu login: [ 516.350136] mmc0: Reset 0x1 never completed. [ 519.887054] kexec_core: Starting new kernel [ 0.000000] arch_timer: Failed to initialize memory-mapped timer, skipping [ 1.160867] coresight-tmc ARMHFFF0:00: Byte-cntr-irq not specified [ 1.169247] Failed to find cpu0 device node [ 1.438884] mmc0: Reset 0x1 never completed. [ 1.542495] mmc0: Reset 0x1 never completed. [ 1.646273] mmc0: Reset 0x1 never completed. ubuntu@ubuntu:~$ sudo cat /proc/iomem | grep "System RAM" [sudo] password for ubuntu: 00200000-0020ffff : System RAM 00820000-0307ffff : System RAM 03080000-0308ffff : System RAM 03090000-031fffff : System RAM 03200000-033fffff : System RAM 03410000-0589ffff : System RAM 058a0000-058affff : System RAM 058b0000-058bffff : System RAM 058c0000-0597ffff : System RAM 05980000-05987fff : System RAM 05988000-0598bfff : System RAM 0598c000-05a0ffff : System RAM 05a10000-05aaffff : System RAM 05ab0000-05ca0fff : System RAM 05ca1000-08caffff : System RAM 08cb0000-08cfffff : System RAM 08d00000-08edffff : System RAM 08ee0000-08ee0fff : System RAM 08ee1000-08ee3fff : System RAM 08ee4000-08eeffff : System RAM 08ef0000-092affff : System RAM 092b0000-092dffff : System RAM 092e0000-09422fff : System RAM 09423000-0949ffff : System RAM 094a0000-0957ffff : System RAM 09580000-0958cfff : System RAM 0958d000-098cffff : System RAM 098d0000-098d0fff : System RAM 098d1000-098dbfff : System RAM 098dc000-0e8bffff : System RAM 0e8c0000-0e8effff : System RAM 0e8f0000-0fffffff : System RAM 10800000-17feffff : System RAM 1c020000-1c7fffff : System RAM 1c800000-1c80ffff : System RAM 1c810000-7efbffff : System RAM 7efc0000-7efdffff : System RAM 7efe0000-7efeffff : System RAM 7eff0000-7effffff : System RAM 7f000000-17ffffffff : System RAM ubuntu@ubuntu:~$ ** Patch added: "[Zesty] kexec increase the upper limit for RAM segments" https://bugs.launchpad.net/ubuntu/+source/kexec-tools/+bug/1659618/+attachment/4818862/+files/zesty-kexec-Increase-the-upper-limit-for-RAM-segments.patch -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to kexec-tools in Ubuntu. https://bugs.launchpad.net/bugs/1659618 Title: Enable ARM64 support in kexec-tools Status in kexec-tools package in Ubuntu: Fix Released Status in kexec-tools source package in Xenial: In Progress Status in kexec-tools source package in Yakkety: In Progress Status in kexec-tools package in Debian: Fix Released Bug description: [IMPACT] * kexec-tools in Xenial (16.04) currently does not support ARM64 architecture. * Backport support for ARM64 arch from upstream https://github.com/horms/kexec-tools * Majority of the patches are contained in kexec/arch/arm64/ except for one patch that impacts purgatory and common device tree routines. [TEST CASE] * I built kexec-tools for ARM64 and tested it on HW using the following testcase: $ sudo kexec -l /boot/vmlinuz-<version>-generic --initrd=/boot/initrd.img-<version>-generic --command-line="root=UUID=<uuid> ro vt.handoff=7" $ sudo kexec -e * I was able to kexec the new kernel successfully. * [ 6702.357899] kexec_core: Starting new kernel [ 0.000000] Booting Linux on physical CPU 0x200 [ 0.000000] Linux version <version>-generic (buildd@bos01-arm64-008) (gcc version 5.4.0 20160609 (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) ) [ 0.000000] Boot CPU: AArch64 Processor [510f8000] [REGRESSION POTENTIAL] * Since patches are confined to arm[64] there is a low overall risk of regression. [OTHER INFO] * You can find a Xenial kexec-tools package built for AMD64, i386 and ARM64 in my PPA https://launchpad.net/~manjo/+archive/ubuntu/kexec-tools * This package is built using the Xenial source package for kexec-tools with ARM64 enablement patches applied. * Please pull the changes from my PPA package and integrate into Ubuntu Xenial kexec-tools after review. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kexec-tools/+bug/1659618/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
