Hi, I tried compiling and booting up with 2.6.21-mm1 kernel on the following machine Architecture : PPC64 CPU Type : POWER5 (gr) Machine Type : CHRP IBM,9117-570 Base OS : Fedora Core 5 the kernel enters the xmon state after an exception as following Red Hat nash version 5.0.32 starting Mounting proc filesystem Mounting sysfs filesystem Creating /dev Creating initial device nodes Setting up hotplug. Creating block device nodes. Loading jbd.ko module Unable to handle kernel paging request for data at address 0x0083a680 Faulting instruction address: 0xc0000000000cc5e4 cpu 0x1: Vector: 300 (Data Access) at [c000000005373320] pc: c0000000000cc5e4: .slab_free+0x6c/0x424 lr: c00000000002fa70: .pgtable_free_tlb+0xd0/0x140 sp: c0000000053735a0 msr: 8000000000009032 dar: 83a680 dsisr: 40000000 current = 0xc000000009408790 paca = 0xc0000000004b2700 pid = 295, comm = init enter ? for help [c000000005373650] c00000000002fa70 .pgtable_free_tlb+0xd0/0x140 [c0000000053736f0] c0000000000b0f40 .free_pgd_range+0x23c/0x3c4 [c0000000053737f0] c0000000000b13cc .free_pgtables+0x100/0x134 [c0000000053738a0] c0000000000b29f0 .exit_mmap+0xcc/0x15c [c000000005373950] c000000000057808 .mmput+0x78/0x170 [c0000000053739f0] c0000000000d9c38 .flush_old_exec+0x750/0xa74 [c000000005373ad0] c000000000012ef0 .load_elf_binary+0x5f8/0x1a18 [c000000005373c30] c0000000000d8a2c .search_binary_handler+0x124/0x304 [c000000005373ce0] c00000000011728c .compat_do_execve+0x1d0/0x328 [c000000005373d90] c000000000016428 .compat_sys_execve+0x74/0xf8 [c000000005373e30] c00000000000872c syscall_exit+0x0/0x40 --- Exception: c01 (System Call) at 00000000100d9358 SP (ff8b79e0) is in userspace 1:mon> Attached and console log and config file. Thanks, Kamalesh Babulal.
Linux version 2.6.21-mm1-autokern1 ([email protected]) (gcc version 4.1.0 20060304 (Red Hat 4.1.0-3)) #1 SMP Mon May 7 00:13:58 CDT 2007 [boot]0012 Setup Arch Node 0 active with no memory EEH: PCI Enhanced I/O Error Handling Enabled PPC64 nvram contains 7168 bytes Zone PFN ranges: DMA 0 -> 1048576 Normal 1048576 -> 1048576 Movable zone start PFN for each node early_node_map[1] active PFN ranges 1: 0 -> 1048576 Could not find start_pfn for node 0 Node 0 active with no memory Node 0 active with no memory Node 0 active with no memory Node 0 active with no memory Node 0 active with no memory Node 0 active with no memory Node 0 active with no memory Node 0 active with no memory Node 0 active with no memory Node 0 active with no memory Node 0 active with no memory Node 0 active with no memory [boot]0015 Setup Done Built 2 zonelists, mobility grouping on. Total pages: 1034240 Kernel command line: ro console=hvc0 autobench_args: root=/dev/sda7 ABAT:1178515939 [boot]0020 XICS Init [boot]0021 XICS Done PID hash table entries: 4096 (order: 12, 32768 bytes) Console: colour dummy device 80x25 console handover: boot [udbg0] -> real [hvc0] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes) Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes) freeing bootmem node 1 Memory: 4114076k/4194304k available (4728k kernel code, 80228k reserved, 892k data, 577k bss, 260k init) SLUB: Genslabs=18, HWalign=128, Order=0-4, MinObjects=16, Processors=4, Nodes=16 Security Framework v1.0.0 initialized SELinux: Initializing. selinux_register_security: Registering secondary module capability Capability LSM initialized as secondary Mount-cache hash table entries: 256 Processor 1 found. Processor 2 found. Processor 3 found. Brought up 4 CPUs migration_cost=4,3 NET: Registered protocol family 16 IOMMU table initialized, virtual merging enabled usbcore: registered new interface driver usbfs usbcore: registered new interface driver hub usbcore: registered new device driver usb NET: Registered protocol family 2 IP route cache hash table entries: 131072 (order: 8, 1048576 bytes) TCP established hash table entries: 524288 (order: 11, 12582912 bytes) TCP bind hash table entries: 65536 (order: 8, 1048576 bytes) TCP: Hash tables configured (established 524288 bind 65536) TCP reno registered checking if image is initramfs... it is Freeing initrd memory: 1300k freed scan-log-dump not implemented on this system audit: initializing netlink socket (disabled) audit(1178516185.644:1): initialized Total HugeTLB memory allocated, 0 VFS: Disk quotas dquot_6.5.1 Dquot-cache hash table entries: 512 (order 0, 4096 bytes) JFS: nTxBlock = 8192, nTxLock = 65536 io scheduler noop registered io scheduler anticipatory registered (default) io scheduler deadline registered io scheduler cfq registered pci_hotplug: PCI Hot Plug PCI Core version: 0.5 rpaphp: RPA HOT Plug PCI Controller Driver version: 0.1 rpaphp: Slot [0000:00:02.4](PCI location=U7879.001.DQD0T7T-P1-C5) registered Generic RTC Driver v1.07 [drm] Initialized drm 1.1.0 20060810 Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled RAMDISK driver initialized: 16 RAM disks of 16384K size 1024 blocksize Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx ide-floppy driver 0.99.newide usbmon: debugfs is not available mice: PS/2 mouse device common for all mice async_tx: api initialized (sync-only) xor: measuring software checksumming speed 8regs : 6091.000 MB/sec 8regs_prefetch: 5169.000 MB/sec 32regs : 6744.000 MB/sec 32regs_prefetch: 4828.000 MB/sec xor: using function: 32regs (6744.000 MB/sec) usbcore: registered new interface driver hiddev usbcore: registered new interface driver usbhid drivers/hid/usbhid/hid-core.c: v2.6:USB HID core driver TCP cubic registered Initializing XFRM netlink socket NET: Registered protocol family 1 NET: Registered protocol family 17 Freeing unused kernel memory: 260k freed Red Hat nash version 5.0.32 starting Mounting proc filesystem Mounting sysfs filesystem Creating /dev Creating initial device nodes Setting up hotplug. Creating block device nodes. Loading jbd.ko module Unable to handle kernel paging request for data at address 0x0083a680 Faulting instruction address: 0xc0000000000cc5e4 cpu 0x1: Vector: 300 (Data Access) at [c000000005373320] pc: c0000000000cc5e4: .slab_free+0x6c/0x424 lr: c00000000002fa70: .pgtable_free_tlb+0xd0/0x140 sp: c0000000053735a0 msr: 8000000000009032 dar: 83a680 dsisr: 40000000 current = 0xc000000009408790 paca = 0xc0000000004b2700 pid = 295, comm = init enter ? for help [c000000005373650] c00000000002fa70 .pgtable_free_tlb+0xd0/0x140 [c0000000053736f0] c0000000000b0f40 .free_pgd_range+0x23c/0x3c4 [c0000000053737f0] c0000000000b13cc .free_pgtables+0x100/0x134 [c0000000053738a0] c0000000000b29f0 .exit_mmap+0xcc/0x15c [c000000005373950] c000000000057808 .mmput+0x78/0x170 [c0000000053739f0] c0000000000d9c38 .flush_old_exec+0x750/0xa74 [c000000005373ad0] c000000000012ef0 .load_elf_binary+0x5f8/0x1a18 [c000000005373c30] c0000000000d8a2c .search_binary_handler+0x124/0x304 [c000000005373ce0] c00000000011728c .compat_do_execve+0x1d0/0x328 [c000000005373d90] c000000000016428 .compat_sys_execve+0x74/0xf8 [c000000005373e30] c00000000000872c syscall_exit+0x0/0x40 --- Exception: c01 (System Call) at 00000000100d9358 SP (ff8b79e0) is in userspace 1:mon>
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