/tmp # ./kexec -d -l kernel.full : Warning (reg_format): "reg" property in /ibm,opal/flash@0 has invalid length (8 bytes) (#address-cells == 0, #size-cells == 0) free memory map: 0x02400000-0x30000000 0x384c2000-0x80000000 kernel offset 0x10000 paddr 0x100000 filesz 17605248 memsz 23287496 add_kexec_segment kernel buf 0x7fffb92f0010 bufsize 0x010ca280, dest 0x2400000, memsize 0x01640000 Kernel entry: 0x100 add_kexec_segment device tree buf 0x7fffba3c0010 bufsize 0x0004cf34, dest 0x7ffb0000, memsize 0x00050000 add_kexec_segment trampoline buf 0x27730680 bufsize 0x00000210, dest 0x7ffa0000, memsize 0x00010000 free memory map after loading: 0x03a40000-0x30000000 0x384c2000-0x7ffa0000 /tmp # ./kexec -e The system is going down NOW! Sent SIGTERM to all processes Sent SIGKILL to all processes [ 5977.776248] kexec_core: Starting new kernel [ 6057.364689657,5] OPAL: Switch to big-endian OS [ 6057.384286962,5] OPAL: Switch to big-endian OS KDB: debugger backends: ddb KDB: current backend: ddb mmu_radix_bootstrap pregions[0].mr_start=0 pregions[0].mr_size=1000000000 pregions[1].mr_start=200000000000 pregions[1].mr_size=1000000000 regions[0].mr_start=0000000000000000 regions[0].mr_size=0000000030000000 regions[1].mr_start=00000000384c2000 regions[1].mr_size=0000000047aee000 regions[2].mr_start=000000007fffd000 regions[2].mr_size=000000007fff3000 regions[3].mr_start=0000000100000000 regions[3].mr_size=0000000f00000000 regions[4].mr_start=0000200002b44000 regions[4].mr_size=0000000ffa1bc000 regions[5].mr_start=0000200ffe000000 regions[5].mr_size=0000000001800000 phys_avail[0]=00002f00 - phys_avail[1]=02400000 phys_avail[2]=384c2000 - phys_avail[3]=7ffb0000 phys_avail[4]=7fffd000 - phys_avail[5]=ffff0000 phys_avail[6]=100000000 - phys_avail[7]=1000000000 phys_avail[8]=200002b44000 - phys_avail[9]=200ffcd00000 phys_avail[10]=200ffe000000 - phys_avail[11]=200fff800000 phys_avail[12]=03a36000 - phys_avail[13]=30000000 l1phys=20000 l2pages=1 l2phys=5000 hwphyssz=0 pml1[0]= 5000 dmap 0 -> 1000000000 dmap 200000000000 -> 201000000000 phys_avail[0]=00002f00 - phys_avail[1]=00003000 phys_avail[2]=00006000 - phys_avail[3]=00010000 phys_avail[4]=00030000 - phys_avail[5]=01000000 phys_avail[6]=100000000 - phys_avail[7]=1000000000 phys_avail[8]=200002b44000 - phys_avail[9]=200ffcd00000 phys_avail[10]=200ffe000000 - phys_avail[11]=200fff800000 phys_avail[12]=03a36000 - phys_avail[13]=30000000 kernel_pmap pml1 0xc000000000020000 early bootstrap complete mmu_parttab_init parttab: 0xc000000000010000 setting ptcr 10004 mmu_radix_parttab_init construct pagetab mmu_radix_parttab_init install pagetab c0000000000200ad mmu_parttab_update isa3_parttab 0xc000000000010000 lpid 0 pagetab c0000000000200ad proctab 0 parttab inited powernv init complete mmu_parttab_update isa3_parttab 0xc000000000010000 lpid 0 pagetab c0000000000200ad proctab 800000000100000c process table 0xc000000001000000 and kernel radix PDE: 0xc000000000020000 mmu_radix_late_bootstrap enter mmu_radix_late_bootstrap set kstack mmu_radix_bootstrap done enabling translation translation enabled got env bzero 0xc008000000008ad0 set curpcb 0xc008000000008ad0 kstack: c008000000001000 setup thread ---<>--- inited r3 = c008000000008a90 KDB: enter: Debugger time! [ thread pid 0 tid 0 ] Stopped at 0xc000000002995554 db>