- Boot first kernel with commandline parameter "crashkernel=128M@32M" - Load second (kdump) kernel using kexec -p: kexec -p - Invoke kdump reboot using sysrq: echo c > /proc/sysrq-trigger Result: ------- - System boots up successfully - dmesg o/p of successfully booted kdump kernel: llm15:/home/sharada/kexec-tools-1.101-kdump7/objdir/build/sbin # ./kexec -p ~sharada/linux-2.6.16-rc4-test/vmlinux-3 get memory ranges:2 Warning: append= option is not passed. Using the first kernel root partition Modified cmdline: elfcorehdr=40724K savemaxmem=8192M root=/dev/sda6 segment[0].mem:0x2000000 memsz:8110080 segment[1].mem:0x27bc000 memsz:36864 segment[2].mem:0x27c5000 memsz:4096 segment[3].mem:0x27c6000 memsz:36864 segment[4].mem:0x9fef000 memsz:69632 llm15:/home/sharada/kexec-tools-1.101-kdump7/objdir/build/sbin # llm15:/home/sharada/kexec-tools-1.101-kdump7/objdir/build/sbin # echo c > /proc/sysrq-trigger SysRq : Trigger a crashdump Page orders: linear mapping = 24, others = 12 Found legacy serial port 1 for /pci@400000000110/isa@3/serial@i2f8 port=2f8, taddr=3fd300002f8, irq=ffffffffffffffff, clk=1843200, speed=0 Found legacy serial port 0 for /pci@400000000110/isa@3/serial@i3f8 port=3f8, taddr=3fd300003f8, irq=ffffffffffffffff, clk=1843200, speed=0 Found legacy serial port 2 for /pci@400000000110/isa@3/serial@i898 port=898, taddr=3fd30000898, irq=ffffffffffffffff, clk=1843200, speed=0 Starting Linux PPC64 #15 SMP Wed Feb 22 19:04:12 IST 2006 ----------------------------------------------------- ppc64_pft_size = 0x0 ppc64_interrupt_controller = 0x2 platform = 0x100 physicalMemorySize = 0xcaf1000 ppc64_caches.dcache_line_size = 0x80 ppc64_caches.icache_line_size = 0x80 htab_address = 0xc000000009800000 htab_hash_mask = 0x7fff physical_start = 0x2000000 ----------------------------------------------------- [boot]0100 MM Init IO Hole assumed to be a000000 -> 2fd0efff [boot]0100 MM Init Done Linux version 2.6.16-rc4 (sharada@llm15) (gcc version 4.1.0 20060109 (prerelease) (SUSE Linux)) #15 SMP Wed Feb 22 19:04:12 IST 2006 [boot]0012 Setup Arch No ramdisk, default root is /dev/sda2 PPC64 nvram contains 81920 bytes Using default idle loop Top of RAM: 0x200000000, Total RAM: 0xcaf1000 Memory hole size: 7989MB [boot]0015 Setup Done Built 1 zonelists Kernel command line: elfcorehdr=40724K savemaxmem=8192M root=/dev/sda6 [boot]0020 XICS Init [boot]0021 XICS Done PID hash table entries: 1024 (order: 10, 32768 bytes) time_init: decrementer frequency = 150.098229 MHz time_init: processor frequency = 1200.000000 MHz Page orders: linear mapping = 24, others = 12 Found legacy serial port 1 for /pci@400000000110/isa@3/serial@i2f8 port=2f8, taddr=3fd300002f8, irq=ffffffffffffffff, clk=1843200, speed=0 Found legacy serial port 0 for /pci@400000000110/isa@3/serial@i3f8 port=3f8, taddr=3fd300003f8, irq=ffffffffffffffff, clk=1843200, speed=0 Found legacy serial port 2 for /pci@400000000110/isa@3/serial@i898 port=898, taddr=3fd30000898, irq=ffffffffffffffff, clk=1843200, speed=0 Starting Linux PPC64 #15 SMP Wed Feb 22 19:04:12 IST 2006 ----------------------------------------------------- ppc64_pft_size = 0x0 ppc64_interrupt_controller = 0x2 platform = 0x100 physicalMemorySize = 0xcaf1000 ppc64_caches.dcache_line_size = 0x80 ppc64_caches.icache_line_size = 0x80 htab_address = 0xc000000009800000 htab_hash_mask = 0x7fff physical_start = 0x2000000 ----------------------------------------------------- [boot]0100 MM Init IO Hole assumed to be a000000 -> 2fd0efff [boot]0100 MM Init Done Linux version 2.6.16-rc4 (sharada@llm15) (gcc version 4.1.0 20060109 (prerelease) (SUSE Linux)) #15 SMP Wed Feb 22 19:04:12 IST 2006 [boot]0012 Setup Arch No ramdisk, default root is /dev/sda2 PPC64 nvram contains 81920 bytes Using default idle loop Top of RAM: 0x200000000, Total RAM: 0xcaf1000 Memory hole size: 7989MB [boot]0015 Setup Done Built 1 zonelists Kernel command line: elfcorehdr=40724K savemaxmem=8192M root=/dev/sda6 [boot]0020 XICS Init [boot]0021 XICS Done PID hash table entries: 1024 (order: 10, 32768 bytes) time_init: decrementer frequency = 150.098229 MHz time_init: processor frequency = 1200.000000 MHz Console: colour dummy device 80x25 Dentry cache hash table entries: 32768 (order: 6, 262144 bytes) Inode-cache hash table entries: 16384 (order: 5, 131072 bytes) Memory: 114552k/207812k available (5152k kernel code, 114524k reserved, 2224k data, 540k bss, 324k init) Mount-cache hash table entries: 256 Processor 1 found. Processor 2 found. Processor 3 found. Brought up 4 CPUs migration_cost=3 NET: Registered protocol family 16 PCI: Probing PCI hardware Failed to request PCI IO region on PCI domain 0000 Using INTC for W82c105 IDE controller. IOMMU table initialized, virtual merging enabled ISA bridge at 0000:00:03.0 mapping IO 3fd30000000 -> d000080000000000, size: 100000 mapping IO 3fd40000000 -> d000080000100000, size: 100000 mapping IO 3fd50000000 -> d000080000200000, size: 100000 mapping IO 3fca0000000 -> d000080000300000, size: 100000 mapping IO 3fcb0000000 -> d000080000400000, size: 100000 PCI: Probing PCI hardware done SCSI subsystem initialized usbcore: registered new driver usbfs usbcore: registered new driver hub RTAS daemon started audit: initializing netlink socket (disabled) audit(1140690846.347:1): initialized Total HugeTLB memory allocated, 0 Installing knfsd (copyright (C) 1996 okir@monad.swb.de). Initializing Cryptographic API io scheduler noop registered io scheduler anticipatory registered (default) io scheduler deadline registered io scheduler cfq registered Using unsupported 640x480 display at 3fdec000000, depth=8, pitch=640 Console: switching to colour frame buffer device 80x30 fb0: Open Firmware frame buffer device on /pci@400000000112/pci@2,6/pci@1/display@0 HVSI: registered 0 devices Generic RTC Driver v1.07 serio: i8042 AUX port at 0x60,0x64 irq 12 serio: i8042 KBD port at 0x60,0x64 irq 1 Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing disabled serial8250.0: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A serial8250.0: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A serial8250.0: ttyS2 at I/O 0x898 (irq = 10) is a 16550A RAMDISK driver initialized: 16 RAM disks of 65536K size 1024 blocksize loop: loaded (max 8 devices) Intel(R) PRO/1000 Network Driver - version 6.3.9-k2 Copyright (c) 1999-2005 Intel Corporation. pcnet32.c:v1.31c 01.Nov.2005 tsbogend@alpha.franken.de e100: Intel(R) PRO/100 Network Driver, 3.5.10-k2-NAPI e100: Copyright(c) 1999-2005 Intel Corporation e100: eth0: e100_probe: addr 0x3fd88030000, irq 101, MAC addr 00:02:55:CF:3E:98 e100: eth1: e100_probe: addr 0x3fde8030000, irq 133, MAC addr 00:02:55:CF:3E:99 e100: eth2: e100_probe: addr 0x3fc80030000, irq 179, MAC addr 00:0D:60:0B:3A:B8 PCI: Unable to reserve mem region #3:20000@3fcc0000000 for device 0004:01:01.0 e100: 0004:01:01.0: e100_probe: Cannot obtain PCI resources, aborting. e100: probe of 0004:01:01.0 failed with error -16 drivers/net/ibmveth.c: ibmveth: IBM i/pSeries Virtual Ethernet Driver 1.03 netconsole: not configured, aborting Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx W82C105: IDE controller at PCI slot 0000:00:03.1 W82C105: chipset revision 5 W82C105: 100% native mode on irq 102 ide0: BM-DMA at 0xf040-0xf047, BIOS settings: hda:DMA, hdb:DMA ide1: BM-DMA at 0xf048-0xf04f, BIOS settings: hdc:DMA, hdd:DMA hda: HL-DT-ST CD-ROM GCR-8482B, ATAPI CD/DVD-ROM drive hda: selected PIO 4 (120ns) (0240) hda: DMA enabled ide0 at 0xf000-0xf007,0xf012 on irq 102 hda: ATAPI 48X CD-ROM drive, 128kB Cache, (U)DMA Uniform CD-ROM driver Revision: 3.20 sym0: <1010-66> rev 0x1 at pci 0000:41:01.0 irq 103 sym0: No NVRAM, ID 7, Fast-80, LVD, parity checking sym0: SCSI BUS has been reset. scsi0 : sym-2.2.2 target0:0:8: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 31) Vendor: IBM Model: IC35L036UCDY10-0 Rev: S28G Type: Direct-Access ANSI SCSI revision: 03 target0:0:8: tagged command queuing enabled, command queue depth 16. target0:0:8: Beginning Domain Validation target0:0:8: asynchronous target0:0:8: FAST-40 SCSI 40.0 MB/s ST (25 ns, offset 31) target0:0:8: Domain Validation skipping write tests target0:0:8: Ending Domain Validation target0:0:9: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 31) Vendor: IBM Model: IC35L036UCDY10-0 Rev: S28G Type: Direct-Access ANSI SCSI revision: 03 target0:0:9: tagged command queuing enabled, command queue depth 16. target0:0:9: Beginning Domain Validation target0:0:9: asynchronous target0:0:9: FAST-40 SCSI 40.0 MB/s ST (25 ns, offset 31) target0:0:9: Domain Validation skipping write tests target0:0:9: Ending Domain Validation target0:0:10: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 31) Vendor: IBM Model: IC35L036UCDY10-0 Rev: S28G Type: Direct-Access ANSI SCSI revision: 03 target0:0:10: tagged command queuing enabled, command queue depth 16. target0:0:10: Beginning Domain Validation target0:0:10: asynchronous target0:0:10: FAST-40 SCSI 40.0 MB/s ST (25 ns, offset 31) target0:0:10: Domain Validation skipping write tests target0:0:10: Ending Domain Validation target0:0:11: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 31) Vendor: IBM Model: IC35L036UCDY10-0 Rev: S28G Type: Direct-Access ANSI SCSI revision: 03 target0:0:11: tagged command queuing enabled, command queue depth 16. target0:0:11: Beginning Domain Validation target0:0:11: asynchronous target0:0:11: FAST-40 SCSI 40.0 MB/s ST (25 ns, offset 31) target0:0:11: Domain Validation skipping write tests target0:0:11: Ending Domain Validation Vendor: IBM Model: HSBPD4E PU3SCSI Rev: 0018 Type: Enclosure ANSI SCSI revision: 02 target0:0:15: Beginning Domain Validation 0:0:15:0: phase change 6-7 6@40040ba0 resid=4. target0:0:15: asynchronous target0:0:15: Ending Domain Validation sym1: <1010-66> rev 0x1 at pci 0000:41:01.1 irq 104 sym1: No NVRAM, ID 7, Fast-80, LVD, parity checking sym1: SCSI BUS has been reset. scsi1 : sym-2.2.2 sym2: <875> rev 0x3 at pci 0001:21:01.0 irq 117 sym2: No NVRAM, ID 7, Fast-20, SE, parity checking sym2: SCSI BUS has been reset. scsi2 : sym-2.2.2 sym3: <875> rev 0x3 at pci 0001:61:01.0 irq 121 sym3: No NVRAM, ID 7, Fast-20, SE, parity checking sym3: SCSI BUS has been reset. scsi3 : sym-2.2.2 ipr: IBM Power RAID SCSI Device Driver version: 2.1.2 (February 8, 2006) ipr 0003:61:01.0: Found IOA with IRQ: 185 ipr 0003:61:01.0: Initializing IOA. ipr 0003:61:01.0: Starting IOA initialization sequence. ipr 0003:61:01.0: Adapter firmware version: 0208002F ipr 0003:61:01.0: IOA initialized. scsi4 : IBM 5702 Storage Adapter Vendor: IBM Model: ST336607LC Rev: C50H Type: Direct-Access ANSI SCSI revision: 03 Vendor: IBM Model: ST336607LC Rev: C50H Type: Direct-Access ANSI SCSI revision: 03 Vendor: IBM Model: HSBPD6X2 PU4SCSI Rev: 0018 Type: Enclosure ANSI SCSI revision: 02 scsi: unknown device type 31 Vendor: IBM Model: 5702001 Rev: 0150 Type: Unknown ANSI SCSI revision: 00 ipr 0004:61:01.0: Found IOA with IRQ: 201 ipr 0004:61:01.0: Initializing IOA. ipr 0004:61:01.0: Starting IOA initialization sequence. ipr 0004:61:01.0: Adapter firmware version: 0208002F ipr 0004:61:01.0: IOA initialized. scsi5 : IBM 5702 Storage Adapter Vendor: IBM Model: ST336607LC Rev: C50H Type: Direct-Access ANSI SCSI revision: 03 Vendor: IBM Model: ST336607LC Rev: C50H Type: Direct-Access ANSI SCSI revision: 03 Vendor: IBM Model: HSBPD6X1 PU4SCSI Rev: 0018 Type: Enclosure ANSI SCSI revision: 02 scsi: unknown device type 31 Vendor: IBM Model: 5702001 Rev: 0150 Type: Unknown ANSI SCSI revision: 00 st: Version 20050830, fixed bufsize 32768, s/g segs 256 SCSI device sda: 71096640 512-byte hdwr sectors (36401 MB) sda: Write Protect is off SCSI device sda: drive cache: write through SCSI device sda: 71096640 512-byte hdwr sectors (36401 MB) sda: Write Protect is off SCSI device sda: drive cache: write through sda: sda1 sda2 < sda5 sda6 sda7 > sd 0:0:8:0: Attached scsi disk sda SCSI device sdb: 71096640 512-byte hdwr sectors (36401 MB) sdb: Write Protect is off SCSI device sdb: drive cache: write through SCSI device sdb: 71096640 512-byte hdwr sectors (36401 MB) sdb: Write Protect is off SCSI device sdb: drive cache: write through sdb: sd 0:0:9:0: Attached scsi disk sdb SCSI device sdc: 71096640 512-byte hdwr sectors (36401 MB) sdc: Write Protect is off SCSI device sdc: drive cache: write through SCSI device sdc: 71096640 512-byte hdwr sectors (36401 MB) sdc: Write Protect is off SCSI device sdc: drive cache: write through sdc: unknown partition table sd 0:0:10:0: Attached scsi disk sdc SCSI device sdd: 71096640 512-byte hdwr sectors (36401 MB) sdd: Write Protect is off SCSI device sdd: drive cache: write through SCSI device sdd: 71096640 512-byte hdwr sectors (36401 MB) sdd: Write Protect is off SCSI device sdd: drive cache: write through sdd: sdd1 sdd3 sd 0:0:11:0: Attached scsi disk sdd SCSI device sde: 71096640 512-byte hdwr sectors (36401 MB) sde: Write Protect is off SCSI device sde: drive cache: write through w/ FUA SCSI device sde: 71096640 512-byte hdwr sectors (36401 MB) sde: Write Protect is off SCSI device sde: drive cache: write through w/ FUA sde: sde1 sde2 sde4 < sde5 sde6 > sd 4:0:8:0: Attached scsi disk sde SCSI device sdf: 71096640 512-byte hdwr sectors (36401 MB) sdf: Write Protect is off SCSI device sdf: drive cache: write through w/ FUA SCSI device sdf: 71096640 512-byte hdwr sectors (36401 MB) sdf: Write Protect is off SCSI device sdf: drive cache: write through w/ FUA sdf: sdf1 sd 4:0:9:0: Attached scsi disk sdf SCSI device sdg: 71096640 512-byte hdwr sectors (36401 MB) sdg: Write Protect is off SCSI device sdg: drive cache: write through w/ FUA SCSI device sdg: 71096640 512-byte hdwr sectors (36401 MB) sdg: Write Protect is off SCSI device sdg: drive cache: write through w/ FUA sdg: sd 5:0:8:0: Attached scsi disk sdg SCSI device sdh: 71096640 512-byte hdwr sectors (36401 MB) sdh: Write Protect is off SCSI device sdh: drive cache: write through w/ FUA SCSI device sdh: 71096640 512-byte hdwr sectors (36401 MB) sdh: Write Protect is off SCSI device sdh: drive cache: write through w/ FUA sdh: sd 5:0:9:0: Attached scsi disk sdh sd 0:0:8:0: Attached scsi generic sg0 type 0 sd 0:0:9:0: Attached scsi generic sg1 type 0 sd 0:0:10:0: Attached scsi generic sg2 type 0 sd 0:0:11:0: Attached scsi generic sg3 type 0 0:0:15:0: Attached scsi generic sg4 type 13 sd 4:0:8:0: Attached scsi generic sg5 type 0 sd 4:0:9:0: Attached scsi generic sg6 type 0 4:0:15:0: Attached scsi generic sg7 type 13 4:255:255:255: Attached scsi generic sg8 type 31 sd 5:0:8:0: Attached scsi generic sg9 type 0 sd 5:0:9:0: Attached scsi generic sg10 type 0 5:0:15:0: Attached scsi generic sg11 type 13 5:255:255:255: Attached scsi generic sg12 type 31 Initializing USB Mass Storage driver... usbcore: registered new driver usb-storage USB Mass Storage support registered. usbcore: registered new driver hiddev usbcore: registered new driver usbhid drivers/usb/input/hid-core.c: v2.6:USB HID core driver mice: PS/2 mouse device common for all mice md: linear personality registered for level -1 atkbd.c: keyboard reset failed on isa0060/serio1 md: raid0 personality registered for level 0 md: raid1 personality registered for level 1 md: raid5 personality registered for level 5 md: raid4 personality registered for level 4 raid5: measuring checksumming speed 8regs : 78898.000 MB/sec 8regs_prefetch: 1.000 MB/sec 32regs : 1.000 MB/sec 32regs_prefetch: 90853.000 MB/sec raid5: using function: 32regs_prefetch (90853.000 MB/sec) md: md driver 0.90.3 MAX_MD_DEVS=256, MD_SB_DISKS=27 md: bitmap version 4.39 input: AT Raw Set 2 keyboard as /class/input/input0 device-mapper: 4.5.0-ioctl (2005-10-04) initialised: dm-devel@redhat.com oprofile: using ppc64/power4 performance monitoring. Netfilter messages via NETLINK v0.30. NET: Registered protocol family 2 IP route cache hash table entries: 2048 (order: 2, 16384 bytes) TCP established hash table entries: 8192 (order: 5, 131072 bytes) TCP bind hash table entries: 8192 (order: 5, 131072 bytes) TCP: Hash tables configured (established 8192 bind 8192) TCP reno registered IPv4 over IPv4 tunneling driver TCP bic registered NET: Registered protocol family 1 NET: Registered protocol family 17 md: Autodetecting RAID arrays. md: autorun ... md: ... autorun DONE. EXT3-fs: INFO: recovery required on readonly filesystem. EXT3-fs: write access will be enabled during recovery. kjournald starting. Commit interval 5 seconds EXT3-fs: sda6: orphan cleanup on readonly fs EXT3-fs: sda6: 3 orphan inodes deleted EXT3-fs: recovery complete. EXT3-fs: mounted filesystem with ordered data mode. VFS: Mounted root (ext3 filesystem) readonly. Freeing unused kernel memory: 324k freed INIT: version 2.86 booting . . . . SUSE LINUX Enterprise Server 9.90 Beta2 (ppc) - Kernel 2.6.16-rc4 (ttyS0). llm15 login: llm15:~ # gdb ~sharada/linux-2.6.16-rc4-test/vmlinux-1-dbg /proc/vmcore GNU gdb 6.4 Copyright 2005 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "ppc64-suse-linux"...Using host libthread_db library "/lib64/libthread_db.so.1". #0 default_idle () at reg.h:636 636 mtspr(SPRN_CTRLT, ctrl); (gdb) info threads * 4 process 0 default_idle () at reg.h:636 * 3 process 0 default_idle () at reg.h:636 2 process 5256 0xc0000000000738a0 in crash_kexec (regs=0x0) at kexec.h:50 * 1 process 0 default_idle () at reg.h:636 (gdb) thread 1 [Switching to thread 4 (process 0)]#0 default_idle () at reg.h:636 636 mtspr(SPRN_CTRLT, ctrl); (gdb) bt #0 default_idle () at reg.h:636 #1 0xc000000000017908 in cpu_idle () at idle_64.c:88 #2 0xc0000000000092f4 in rest_init () at main.c:403 #3 0xc0000000004d7744 in start_kernel () at main.c:546 #4 0xc000000000008574 in .start_here_common () Previous frame inner to this frame (corrupt stack?) (gdb) (gdb) thread 2 [Switching to thread 2 (process 5256)]#0 0xc0000000000738a0 in crash_kexec ( regs=0x0) at kexec.h:50 50 __asm__ __volatile__ ( (gdb) bt #0 0xc0000000000738a0 in crash_kexec (regs=0x0) at kexec.h:50 #1 0xc00000000025df3c in sysrq_handle_crashdump (key=, pt_regs=0x0, tty=0x0) at sysrq.c:103 #2 0xc00000000025e070 in __handle_sysrq (key=99, pt_regs=0x0, tty=0x0, check_mask=0) at sysrq.c:410 #3 0xc0000000000f9f48 in write_sysrq_trigger (file=, buf=, count=2, ppos=) at proc_misc.c:688 #4 0xc0000000000af6c0 in vfs_write (file=0xc00000003fdaa880, buf=0xf7e6f000
, count=0, pos=0xc0000001f9d7fe08) at read_write.c:316 #5 0xc0000000000afdd8 in sys_write (fd=, buf=0x0, count=0) at read_write.c:369 #6 0xc0000000000086f8 in system_call () #7 0xc0000000000086f8 in system_call () Previous frame identical to this frame (corrupt stack?) (gdb) info reg r0 0x0 0 r1 0xc0000001f9d7f960 13835058063768811872 r2 0xc00000000074d260 13835058055289819744 r3 0xc0000001f9d7f9d0 13835058063768811984 r4 0x0 0 r5 0x0 0 r6 0xc0000001f9d7fbf8 13835058063768812536 r7 0xc0000000005a5ab8 13835058055288085176 r8 0xc0000000007b7e20 13835058055290256928 r9 0xc000000000783fa0 13835058055290044320 r10 0xc00000000075cd00 13835058055289883904 r11 0xc000000000783f98 13835058055290044312 r12 0x2c3c2090 742138000 r13 0xc000000000579c00 13835058055287905280 r14 0x0 0 r15 0x0 0 r16 0x100a0000 269090816 r17 0x100a2e48 269102664 r18 0x100a0000 269090816 r19 0x10070000 268894208 r20 0x0 0 r21 0x0 0 r22 0x10060000 268828672 ---Type to continue, or q to quit--- r23 0x0 0 r24 0x9000000000009032 10376293541461659698 r25 0x0 0 r26 0x0 0 r27 0x63 99 r28 0x1 1 r29 0x0 0 r30 0xc0000000005b5148 13835058055288148296 r31 0xc0000001051dd000 13835058059662970880 pc 0xc0000000000738a0 13835058055282636960 cr 0x0 0 lr 0xc00000000025df3c 13835058055284645692 ctr 0xc00000000025df28 13835058055284645672 xer 0x0 0 (gdb) thread 3 [Switching to thread 4 (process 0)]#0 default_idle () at reg.h:636 636 mtspr(SPRN_CTRLT, ctrl); (gdb) bt #0 default_idle () at reg.h:636 #1 0xc000000000017908 in cpu_idle () at idle_64.c:88 #2 0xc0000000000092f4 in rest_init () at main.c:403 #3 0xc0000000004d7744 in start_kernel () at main.c:546 #4 0xc000000000008574 in .start_here_common () Previous frame inner to this frame (corrupt stack?) (gdb) (gdb) thread 4 [Switching to thread 4 (process 0)]#0 default_idle () at reg.h:636 636 mtspr(SPRN_CTRLT, ctrl); (gdb) bt #0 default_idle () at reg.h:636 #1 0xc000000000017908 in cpu_idle () at idle_64.c:88 #2 0xc0000000000092f4 in rest_init () at main.c:403 #3 0xc0000000004d7744 in start_kernel () at main.c:546 #4 0xc000000000008574 in .start_here_common () (gdb) (gdb) inspect have_of $1 = 1 (gdb) inspect htab_size_bytes $3 = 134217728 (gdb) (gdb) inspect htab_hash_mask $4 = 1048575 (gdb) llm15:~ # bc bc 1.06 Copyright 1991-1994, 1997, 1998, 2000 Free Software Foundation, Inc. This is free software with ABSOLUTELY NO WARRANTY. For details type `warranty'. ibase=10 obase=16 134217728 8000000 1048575 FFFFF