Hi experts, I have a problem when using kexec-tools on freescale powerpc P1014E. I have 256MB memory and reserved 78MB for crashkernel. The cmdline for production kernel is, bver=0.0.10 root=/dev/ram rw console=ttyS0,115200 crashkernel=78M I used below command to load crash kernel into memory. /mnt/uspace/abc/kexec -d -l /mnt/uspace/abc/vmlinux.z.img \ --initrd=/mnt/uspace/abc/ramdisk.img.gz \ --append="root=/dev/ram1 rw console=ttyS0,115200 1 maxcpus=1 noirqdistrib reset_devices" Then I used "kexec -e" to execute the crash kernel. The crash kernel works *well* and I can enter busybox after the crash kernel is up. But when I used below command to load crash kernel into memory for panic catching, /mnt/uspace/abc/kexec -d -p /mnt/uspace/abc/vmlinux.z.img \ --initrd=/mnt/uspace/abc/ramdisk.img.gz \ --append="root=/dev/ram1 rw console=ttyS0,115200 1 maxcpus=1 noirqdistrib reset_devices" and tried to trigger panic by "echo c > /proc/sysrq", system hung after "Bye!" was printed to console. I attached the debug output of "kexec -d -l" and "kexec -d -p". Can someone please help here or point me a correct place to post the question? Thanks. BR -------------- next part -------------- kernel: 0x4802f008 kernel_size: 0x40da44 0000000000000000-0000000010000000 : 0 get base memory ranges:1 sym: sha256_starts info: 12 other: 00 shndx: 1 value: 9a4 size: b8 sym: sha256_starts value: 4229a4 addr: 422018 sym: .data info: 03 other: 00 shndx: 4 value: 0 size: 0 sym: .data value: 427a78 addr: 42201e sym: .data info: 03 other: 00 shndx: 4 value: 0 size: 0 sym: .data value: 427a78 addr: 422022 sym: sha256_update info: 12 other: 00 shndx: 1 value: 53dc size: 188 sym: sha256_update value: 4273dc addr: 42203c sym: sha256_finish info: 12 other: 00 shndx: 1 value: 5564 size: 4a0 sym: sha256_finish value: 427564 addr: 422054 sym: memcmp info: 12 other: 00 shndx: 1 value: 66c size: 40 sym: memcmp value: 42266c addr: 422064 sym: .rodata.str1.4 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.4 value: 427a04 addr: 422076 sym: .rodata.str1.4 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.4 value: 427a04 addr: 42207e sym: printf info: 12 other: 00 shndx: 1 value: 514 size: 68 sym: printf value: 422514 addr: 422084 sym: .rodata.str1.4 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.4 value: 427a24 addr: 42208a sym: .rodata.str1.4 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.4 value: 427a24 addr: 42208e sym: printf info: 12 other: 00 shndx: 1 value: 514 size: 68 sym: printf value: 422514 addr: 422094 sym: .rodata.str1.4 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.4 value: 427a34 addr: 42209a sym: .rodata.str1.4 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.4 value: 427a34 addr: 42209e sym: printf info: 12 other: 00 shndx: 1 value: 514 size: 68 sym: printf value: 422514 addr: 4220b0 sym: .rodata.str1.4 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.4 value: 427a3c addr: 4220c2 sym: .rodata.str1.4 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.4 value: 427a3c addr: 4220c6 sym: printf info: 12 other: 00 shndx: 1 value: 514 size: 68 sym: printf value: 422514 addr: 4220cc sym: .rodata.str1.4 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.4 value: 427a40 addr: 4220d2 sym: .rodata.str1.4 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.4 value: 427a40 addr: 4220d6 sym: printf info: 12 other: 00 shndx: 1 value: 514 size: 68 sym: printf value: 422514 addr: 4220dc sym: .data info: 03 other: 00 shndx: 4 value: 0 size: 0 sym: .data value: 427a78 addr: 4220e2 sym: .data info: 03 other: 00 shndx: 4 value: 0 size: 0 sym: .data value: 427a78 addr: 4220e6 sym: printf info: 12 other: 00 shndx: 1 value: 514 size: 68 sym: printf value: 422514 addr: 422100 sym: .rodata.str1.4 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.4 value: 427a3c addr: 42210e sym: .rodata.str1.4 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.4 value: 427a3c addr: 422112 sym: printf info: 12 other: 00 shndx: 1 value: 514 size: 68 sym: printf value: 422514 addr: 422118 sym: _rest32gpr_29_x info: 12 other: 00 shndx: 1 value: 904 size: 0 sym: _rest32gpr_29_x value: 422904 addr: 422124 sym: .rodata.str1.4 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.4 value: 427a50 addr: 42212e sym: .rodata.str1.4 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.4 value: 427a50 addr: 422136 sym: printf info: 12 other: 00 shndx: 1 value: 514 size: 68 sym: printf value: 422514 addr: 422140 sym: setup_arch info: 12 other: 00 shndx: 1 value: 994 size: 4 sym: setup_arch value: 422994 addr: 422144 sym: verify_sha256_digest info: 12 other: 00 shndx: 1 value: 0 size: 128 sym: verify_sha256_digest value: 422000 addr: 422148 sym: post_verification_setup_arch info: 12 other: 00 shndx: 1 value: 998 size: 4 sym: post_verification_setup_arch value: 422998 addr: 422158 sym: .rodata.str1.4 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.4 value: 427a64 addr: 422176 sym: .rodata.str1.4 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.4 value: 427a64 addr: 42218e sym: putchar info: 12 other: 00 shndx: 1 value: 9a0 size: 4 sym: putchar value: 4229a0 addr: 4221c0 sym: putchar info: 12 other: 00 shndx: 1 value: 9a0 size: 4 sym: putchar value: 4229a0 addr: 42221c sym: __lshrdi3 info: 10 other: 00 shndx: 1 value: 970 size: 0 sym: __lshrdi3 value: 422970 addr: 422344 sym: putchar info: 12 other: 00 shndx: 1 value: 9a0 size: 4 sym: putchar value: 4229a0 addr: 4224dc sym: _rest32gpr_19_x info: 12 other: 00 shndx: 1 value: 8dc size: 0 sym: _rest32gpr_19_x value: 4228dc addr: 422510 sym: vsprintf info: 12 other: 00 shndx: 1 value: 16c size: 3a8 sym: vsprintf value: 42216c addr: 422568 sym: vsprintf info: 12 other: 00 shndx: 1 value: 16c size: 3a8 sym: vsprintf value: 42216c addr: 4225c4 sym: my_thread_ptr info: 11 other: 00 shndx: 5 value: 10 size: 4 sym: my_thread_ptr value: 427be8 addr: 4227be sym: my_thread_ptr info: 11 other: 00 shndx: 5 value: 10 size: 4 sym: my_thread_ptr value: 427be8 addr: 4227c2 sym: stack info: 11 other: 00 shndx: 5 value: 8 size: 4 sym: stack value: 427be0 addr: 4227ca sym: stack info: 11 other: 00 shndx: 5 value: 8 size: 4 sym: stack value: 427be0 addr: 4227ce sym: purgatory info: 12 other: 00 shndx: 1 value: 128 size: 44 sym: purgatory value: 422128 addr: 4227d8 sym: dt_offset info: 11 other: 00 shndx: 5 value: c size: 4 sym: dt_offset value: 427be4 addr: 4227f2 sym: dt_offset info: 11 other: 00 shndx: 5 value: c size: 4 sym: dt_offset value: 427be4 addr: 4227f6 sym: kernel info: 11 other: 00 shndx: 5 value: 14 size: 4 sym: kernel value: 427bec addr: 42280e sym: kernel info: 11 other: 00 shndx: 5 value: 14 size: 4 sym: kernel value: 427bec addr: 422812 sym: memcpy info: 12 other: 00 shndx: 1 value: 63c size: 30 sym: memcpy value: 42263c addr: 4274ac sym: sha256_process info: 12 other: 00 shndx: 1 value: a5c size: 4980 sym: sha256_process value: 422a5c addr: 4274c0 sym: sha256_process info: 12 other: 00 shndx: 1 value: a5c size: 4980 sym: sha256_process value: 422a5c addr: 4274f8 sym: memcpy info: 12 other: 00 shndx: 1 value: 63c size: 30 sym: memcpy value: 42263c addr: 427548 sym: .data info: 03 other: 00 shndx: 4 value: 0 size: 0 sym: .data value: 427b98 addr: 42766e sym: .data info: 03 other: 00 shndx: 4 value: 0 size: 0 sym: .data value: 427b98 addr: 427672 sym: sha256_update info: 12 other: 00 shndx: 1 value: 53dc size: 188 sym: sha256_update value: 4273dc addr: 427678 sym: sha256_update info: 12 other: 00 shndx: 1 value: 53dc size: 188 sym: sha256_update value: 4273dc addr: 42768c Modified cmdline:root=/dev/ram1 rw console=ttyS0,115200 1 maxcpus=1 noirqdistrib reset_devices reserve regions: 2 0: offset: 17fc000, size: 4000 1: offset: fe64000, size: 19b903 debug.dtb written kexec_load: entry = 0x4226ac flags = 0x0 nr_segments = 4 segment[0].buf = 0x4803f008 segment[0].bufsz = 0x3fd220 segment[0].mem = (nil) segment[0].memsz = 0x422000 segment[1].buf = 0x1007b298 segment[1].bufsz = 0x5bf0 segment[1].mem = 0x422000 segment[1].memsz = 0x6000 segment[2].buf = 0x10080ef0 segment[2].bufsz = 0x3379 segment[2].mem = 0x17fc000 segment[2].memsz = 0x4000 segment[3].buf = 0x48830008 segment[3].bufsz = 0x19b903 segment[3].mem = 0xfe64000 segment[3].memsz = 0x19c000 default_machine_kexec: Bye! rnk: 0xcc7ff000 page_list: 0x0c7fd002 reboot_code_buffer_phys: 0x0c7ff000 image->start: 0x004226ac -------------- next part -------------- kernel: 0x4802f008 kernel_size: 0x40da44 0000000000000000-0000000010000000 : 0 get base memory ranges:1 usable memory rgns size:1 base:0 size:6e00000 exclude_range sorted exclude_range[0] start:0, end:422000 setup_memory_ranges memory_range[0] start:422001, end:10000000 CRASH MEMORY RANGES 0000000000000000-0000000000010000 0000000000010000-0000000002000000 0000000006e00000-0000000010000000 get_crash_notes_per_cpu: crash_notes addr = 62816c, size = 1024 Elf header: p_type = 4, p_offset = 0x62816c p_paddr = 0x62816c p_vaddr = 0x0 p_filesz = 0x400 p_memsz = 0x400 vmcoreinfo header: p_type = 4, p_offset = 0x407190 p_paddr = 0x407190 p_vaddr = 0x0 p_filesz = 0x1000 p_memsz = 0x1000 Elf header: p_type = 1, p_offset = 0x2422000 p_paddr = 0x0 p_vaddr = 0xc0000000 p_filesz = 0x10000 p_memsz = 0x10000 Elf header: p_type = 1, p_offset = 0x10000 p_paddr = 0x10000 p_vaddr = 0xc0010000 p_filesz = 0x1ff0000 p_memsz = 0x1ff0000 Elf header: p_type = 1, p_offset = 0x6e00000 p_paddr = 0x6e00000 p_vaddr = 0xc6e00000 p_filesz = 0x9200000 p_memsz = 0x9200000 Command line after adding elfcorehdr: elfcorehdr=37064K sym: sha256_starts info: 12 other: 00 shndx: 1 value: 9a4 size: b8 sym: sha256_starts value: 24339a4 addr: 2433018 sym: .data info: 03 other: 00 shndx: 4 value: 0 size: 0 sym: .data value: 2438a78 addr: 243301e sym: .data info: 03 other: 00 shndx: 4 value: 0 size: 0 sym: .data value: 2438a78 addr: 2433022 sym: sha256_update info: 12 other: 00 shndx: 1 value: 53dc size: 188 sym: sha256_update value: 24383dc addr: 243303c sym: sha256_finish info: 12 other: 00 shndx: 1 value: 5564 size: 4a0 sym: sha256_finish value: 2438564 addr: 2433054 sym: memcmp info: 12 other: 00 shndx: 1 value: 66c size: 40 sym: memcmp value: 243366c addr: 2433064 sym: .rodata.str1.4 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.4 value: 2438a04 addr: 2433076 sym: .rodata.str1.4 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.4 value: 2438a04 addr: 243307e sym: printf info: 12 other: 00 shndx: 1 value: 514 size: 68 sym: printf value: 2433514 addr: 2433084 sym: .rodata.str1.4 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.4 value: 2438a24 addr: 243308a sym: .rodata.str1.4 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.4 value: 2438a24 addr: 243308e sym: printf info: 12 other: 00 shndx: 1 value: 514 size: 68 sym: printf value: 2433514 addr: 2433094 sym: .rodata.str1.4 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.4 value: 2438a34 addr: 243309a sym: .rodata.str1.4 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.4 value: 2438a34 addr: 243309e sym: printf info: 12 other: 00 shndx: 1 value: 514 size: 68 sym: printf value: 2433514 addr: 24330b0 sym: .rodata.str1.4 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.4 value: 2438a3c addr: 24330c2 sym: .rodata.str1.4 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.4 value: 2438a3c addr: 24330c6 sym: printf info: 12 other: 00 shndx: 1 value: 514 size: 68 sym: printf value: 2433514 addr: 24330cc sym: .rodata.str1.4 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.4 value: 2438a40 addr: 24330d2 sym: .rodata.str1.4 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.4 value: 2438a40 addr: 24330d6 sym: printf info: 12 other: 00 shndx: 1 value: 514 size: 68 sym: printf value: 2433514 addr: 24330dc sym: .data info: 03 other: 00 shndx: 4 value: 0 size: 0 sym: .data value: 2438a78 addr: 24330e2 sym: .data info: 03 other: 00 shndx: 4 value: 0 size: 0 sym: .data value: 2438a78 addr: 24330e6 sym: printf info: 12 other: 00 shndx: 1 value: 514 size: 68 sym: printf value: 2433514 addr: 2433100 sym: .rodata.str1.4 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.4 value: 2438a3c addr: 243310e sym: .rodata.str1.4 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.4 value: 2438a3c addr: 2433112 sym: printf info: 12 other: 00 shndx: 1 value: 514 size: 68 sym: printf value: 2433514 addr: 2433118 sym: _rest32gpr_29_x info: 12 other: 00 shndx: 1 value: 904 size: 0 sym: _rest32gpr_29_x value: 2433904 addr: 2433124 sym: .rodata.str1.4 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.4 value: 2438a50 addr: 243312e sym: .rodata.str1.4 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.4 value: 2438a50 addr: 2433136 sym: printf info: 12 other: 00 shndx: 1 value: 514 size: 68 sym: printf value: 2433514 addr: 2433140 sym: setup_arch info: 12 other: 00 shndx: 1 value: 994 size: 4 sym: setup_arch value: 2433994 addr: 2433144 sym: verify_sha256_digest info: 12 other: 00 shndx: 1 value: 0 size: 128 sym: verify_sha256_digest value: 2433000 addr: 2433148 sym: post_verification_setup_arch info: 12 other: 00 shndx: 1 value: 998 size: 4 sym: post_verification_setup_arch value: 2433998 addr: 2433158 sym: .rodata.str1.4 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.4 value: 2438a64 addr: 2433176 sym: .rodata.str1.4 info: 03 other: 00 shndx: 3 value: 0 size: 0 sym: .rodata.str1.4 value: 2438a64 addr: 243318e sym: putchar info: 12 other: 00 shndx: 1 value: 9a0 size: 4 sym: putchar value: 24339a0 addr: 24331c0 sym: putchar info: 12 other: 00 shndx: 1 value: 9a0 size: 4 sym: putchar value: 24339a0 addr: 243321c sym: __lshrdi3 info: 10 other: 00 shndx: 1 value: 970 size: 0 sym: __lshrdi3 value: 2433970 addr: 2433344 sym: putchar info: 12 other: 00 shndx: 1 value: 9a0 size: 4 sym: putchar value: 24339a0 addr: 24334dc sym: _rest32gpr_19_x info: 12 other: 00 shndx: 1 value: 8dc size: 0 sym: _rest32gpr_19_x value: 24338dc addr: 2433510 sym: vsprintf info: 12 other: 00 shndx: 1 value: 16c size: 3a8 sym: vsprintf value: 243316c addr: 2433568 sym: vsprintf info: 12 other: 00 shndx: 1 value: 16c size: 3a8 sym: vsprintf value: 243316c addr: 24335c4 sym: my_thread_ptr info: 11 other: 00 shndx: 5 value: 10 size: 4 sym: my_thread_ptr value: 2438be8 addr: 24337be sym: my_thread_ptr info: 11 other: 00 shndx: 5 value: 10 size: 4 sym: my_thread_ptr value: 2438be8 addr: 24337c2 sym: stack info: 11 other: 00 shndx: 5 value: 8 size: 4 sym: stack value: 2438be0 addr: 24337ca sym: stack info: 11 other: 00 shndx: 5 value: 8 size: 4 sym: stack value: 2438be0 addr: 24337ce sym: purgatory info: 12 other: 00 shndx: 1 value: 128 size: 44 sym: purgatory value: 2433128 addr: 24337d8 sym: dt_offset info: 11 other: 00 shndx: 5 value: c size: 4 sym: dt_offset value: 2438be4 addr: 24337f2 sym: dt_offset info: 11 other: 00 shndx: 5 value: c size: 4 sym: dt_offset value: 2438be4 addr: 24337f6 sym: kernel info: 11 other: 00 shndx: 5 value: 14 size: 4 sym: kernel value: 2438bec addr: 243380e sym: kernel info: 11 other: 00 shndx: 5 value: 14 size: 4 sym: kernel value: 2438bec addr: 2433812 sym: memcpy info: 12 other: 00 shndx: 1 value: 63c size: 30 sym: memcpy value: 243363c addr: 24384ac sym: sha256_process info: 12 other: 00 shndx: 1 value: a5c size: 4980 sym: sha256_process value: 2433a5c addr: 24384c0 sym: sha256_process info: 12 other: 00 shndx: 1 value: a5c size: 4980 sym: sha256_process value: 2433a5c addr: 24384f8 sym: memcpy info: 12 other: 00 shndx: 1 value: 63c size: 30 sym: memcpy value: 243363c addr: 2438548 sym: .data info: 03 other: 00 shndx: 4 value: 0 size: 0 sym: .data value: 2438b98 addr: 243866e sym: .data info: 03 other: 00 shndx: 4 value: 0 size: 0 sym: .data value: 2438b98 addr: 2438672 sym: sha256_update info: 12 other: 00 shndx: 1 value: 53dc size: 188 sym: sha256_update value: 24383dc addr: 2438678 sym: sha256_update info: 12 other: 00 shndx: 1 value: 53dc size: 188 sym: sha256_update value: 24383dc addr: 243868c Modified cmdline:root=/dev/ram1 rw console=ttyS0,115200 1 maxcpus=1 noirqdistrib reset_devices elfcorehdr=37064K maxcpus=1 reserve regions: 3 0: offset: 37fc000, size: 4000 1: offset: 2000000, size: 439000 2: offset: 6c64000, size: 19c000 debug.dtb written kexec_load: entry = 0x24336ac flags = 0x1 nr_segments = 6 segment[0].buf = 0x4803f008 segment[0].bufsz = 0x3fd220 segment[0].mem = 0x2000000 segment[0].memsz = 0x422000 segment[1].buf = 0x1007b488 segment[1].bufsz = 0x10000 segment[1].mem = 0x2422000 segment[1].memsz = 0x10000 segment[2].buf = 0x1007a468 segment[2].bufsz = 0x400 segment[2].mem = 0x2432000 segment[2].memsz = 0x1000 segment[3].buf = 0x1008ba90 segment[3].bufsz = 0x5bf0 segment[3].mem = 0x2433000 segment[3].memsz = 0x6000 segment[4].buf = 0x10091688 segment[4].bufsz = 0x33b9 segment[4].mem = 0x37fc000 segment[4].memsz = 0x4000 segment[5].buf = 0x48830008 segment[5].bufsz = 0x19b903 segment[5].mem = 0x6c64000 segment[5].memsz = 0x19c000 default_machine_kexec: Bye! rnk: 0xc2439000 page_list: 0x00000004 reboot_code_buffer_phys: 0x02439000 image->start: 0x024336ac
