On Dec 2, 2009, at 10:36 PM, Thirumalai wrote: > > Thank you for your reply. But when i boot smp-linux on this > configuration i got into kernel panic. The log is attached with this > mail. I > am using linux-2.6.30 downloaded from kernel.org and my dts entry > for cpu is > like this.
<snip> > > Calibrating delay loop... 199.68 BogoMIPS (lpj=99840) > Mount-cache hash table entries: 512 > mpic: requesting IPIs ... > Processor 1 found. > clockevent: decrementer mult[1999] shift[16] cpu[1] > Brought up 2 CPUs > Unable to handle kernel paging request for data at address 0x00000004 > Faulting instruction address: 0xa0023e10 > Oops: Kernel access of bad area, sig: 11 [#1] > SMP NR_CPUS=2 DPVPX0689 > Modules linked in: > NIP: a0023e10 LR: a0023dd0 CTR: 00000000 > REGS: cf841e90 TRAP: 0300 Not tainted (2.6.30-dpvpx0689) > MSR: 00009032 <EE,ME,IR,DR> CR: 24004028 XER: 20000000 > DAR: 00000004, DSISR: 40000000 > TASK = cf83f930[1] 'swapper' THREAD: cf840000 CPU: 0 > GPR00: 00000000 cf841f40 cf83f930 00000000 00000000 00000000 cf841f50 > 00000000 > GPR08: 00000000 00000000 00000002 a10018f4 22004082 ffffffff 3fee6c00 > 3ff94000 > GPR16: ffffffbf ffbf7bff 00000000 00000000 00000000 cf83a800 a10018e8 > a0491224 > GPR24: a0490000 a04558f8 00000000 cf801f20 a1006070 a10018e8 a10018f8 > 00000000 > NIP [a0023e10] __build_sched_domains+0x354/0x464 > LR [a0023dd0] __build_sched_domains+0x314/0x464 > Call Trace: > [cf841f40] [a0023b98] __build_sched_domains+0xdc/0x464 (unreliable) > [cf841f90] [a04326ec] sched_init_smp+0x88/0x1e8 > [cf841fc0] [a0425a40] kernel_init+0x148/0x1f0 > [cf841ff0] [a00131f8] kernel_thread+0x4c/0x68 > Instruction dump: > 813e0008 2f9c0000 90090004 419e00d4 801e0034 70090100 40820010 > 801c0034 > 70090280 408200bc 83fc0008 83be0008 <807f0004> 801d0004 7c630214 > 907d0004 You took this panic because you tried to access 0x00000004, which is probably not correct. I would also not generally expect to be seeing all these 0xaxxxxxxx addresses in your panic. Can you explain exactly what you've done to this kernel, and send a copy of the entire .dts and the .config? FYI, 2.6.30 boots SMP just fine on my 8641HPCN board. Cheers, Becky > ---[ end trace 31fd0ba7d8756001 ]--- > Kernel panic - not syncing: Attempted to kill init! > Rebooting in 180 seconds.. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot