Hello all I have a custom board with MPC8560 and 1GB DDR SDRAM. I am trying to port linux - 2.6.29 on this board. The U-BOOT is already ported on the board and is working.
The OS uImage is stored in code flash at address 0xe0000000 and OS is booted by U-BOOT While OS do boot but after some prints weired errors start showing up. Rootfile system is NFS based . I have checked the register values with Hardware person using Trace32 emulator and they are as expected. ---------------------------------------------------------------------------------------- FLASH: 32.5 MB L2: 256 KB enabled In: serial Out: serial Err: serial Net: TSEC1, TSEC2 Hit any key to stop autoboot: 0 WARNING: adjusting available memory to 30000000 ## Booting kernel from Legacy Image at e0000000 ... Image Name: Linux-2.6.29 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 1451400 Bytes = 1.4 MB Load Address: 00400000 Entry Point: 004005a8 Verifying Checksum ... OK Uncompressing Kernel Image ... OK Using MPC85xx ADS machine description Memory CAM mapping: CAM0=256Mb, CAM1=256Mb, CAM2=256Mb residual: 256Mb Linux version 2.6.29 (dee...@localhost) (gcc version 3.4.3 (MontaVista 3.4.3-25.0.96.0600665 2006-05-179Found FSL PCI host bridge at 0x00000000a0008000. Firmware bus number: 0->0 PCI host bridge /p...@a0008000 (primary) ranges: MEM 0x0000000080000000..0x000000009fffffff -> 0x0000000080000000 IO 0x00000000a2000000..0x00000000a2ffffff -> 0x0000000000000000 Zone PFN ranges: DMA 0x00000000 -> 0x00030000 Normal 0x00030000 -> 0x00030000 Movable zone start PFN for each node early_node_map[1] active PFN ranges 0: 0x00000000 -> 0x00030000 MMU: Allocated 1088 bytes of context maps for 255 contexts Built 1 zonelists in Zone order, mobility grouping on. Total pages: 195072 Kernel command line: console=ttyCPM0,9600 root=/dev/nfs rw nfsroot=rootpath ip=dhcp mpic: Setting up MPIC " OpenPIC " version 1.2 at a0040000, max 1 CPUs mpic: ISU size: 56, shift: 6, mask: 3f mpic: Initializing for 56 sources PID hash table entries: 4096 (order: 12, 16384 bytes) clocksource: timebase mult[79364d9] shift[22] registered console [ttyCPM0] enabled Dentry cache hash table entries: 131072 (order: 7, 524288 bytes) Inode-cache hash table entries: 65536 (order: 6, 262144 bytes) BUG: Bad page state in process swapper pfn:2fc69 page:c0d0ed20 flags:(null) count:0 mapcount:-524288 mapping:(null) index:0 Call Trace: [c02dbef0] [c0007a84] show_stack+0x48/0x174 (unreliable) [c02dbf20] [c006fa14] bad_page+0x9c/0x160 [c02dbf40] [c0071564] __free_pages_ok+0x2c8/0x3a8 [c02dbf70] [c02a9788] free_all_bootmem_core+0x1a4/0x240 [c02dbfa0] [c02a4544] mem_init+0x64/0x178 [c02dbfc0] [c029a67c] start_kernel+0x1d0/0x2a8 [c02dbff0] [c00003b4] skpinv+0x2dc/0x318 BUG: Bad page state in process swapper pfn:2fc8f page:c0d0f1e0 flags:(null) count:0 mapcount:7799008 mapping:(null) index:0 Call Trace: [c02dbef0] [c0007a84] show_stack+0x48/0x174 (unreliable) [c02dbf20] [c006fa14] bad_page+0x9c/0x160 [c02dbf40] [c0071564] __free_pages_ok+0x2c8/0x3a8 [c02dbf70] [c02a9788] free_all_bootmem_core+0x1a4/0x240 [c02dbfa0] [c02a4544] mem_init+0x64/0x178 [c02dbfc0] [c029a67c] start_kernel+0x1d0/0x2a8 [c02dbff0] [c00003b4] skpinv+0x2dc/0x318 BUG: Bad page state in process swapper pfn:2fcc4 page:c0d0f880 flags:(null) count:0 mapcount:7799040 mapping:(null) index:0 Call Trace: [c02dbef0] [c0007a84] show_stack+0x48/0x174 (unreliable) [c02dbf20] [c006fa14] bad_page+0x9c/0x160 [c02dbf40] [c0071564] __free_pages_ok+0x2c8/0x3a8 [c02dbf70] [c02a9788] free_all_bootmem_core+0x1a4/0x240 [c02dbfa0] [c02a4544] mem_init+0x64/0x178 [c02dbfc0] [c029a67c] start_kernel+0x1d0/0x2a8 [c02dbff0] [c00003b4] skpinv+0x2dc/0x318 BUG: Bad page state in process swapper pfn:2fce8 -------------------------------------------------------------------------------------- Can anyone kindly help me in understanding the issue. with regards, Deepak Gaur _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev