From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <003f01bf42dc$c33c23c0$73f102de@sjzhu> Reply-To: "Shuangjun Zhu (r44089)" From: "Shuangjun Zhu" To: Subject: Help: Linux 2.2.13 on MPC823 FADS board Date: Fri, 10 Dec 1999 15:04:10 +0800 MIME-Version: 1.0 Content-Type: text/plain; charset="gb2312" Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: Hello, everyone I build a kernel for MPC823 FADS board, but there is something wrong. Why is there the following error information: Kernel panic: kernel access of bad area pc c000fe90 lr c000fce0 address 2C80001E tsk swapper/1 Any suggestion is appreciated! ========================================================== loaded at: 00400000 0040B1C0 board data at: 00011260 00011274 relocated to: 00200100 00200114 zimage at: 0040B1C0 0045E77D initrd at: 0045E77D 005BFD32 avail ram: 005C0000 01000000 Linux/PPC load: Uncompressing Linux...done. Now booting the kernel Linux version 2.2.13 (sjzhu@linux.mcel.mot.com) (gcc version 2.7.2.1-ppclinux) # 130 Fri Dec 10 23:01:17 CST 1999 Boot arguments: root=/dev/ram time_init: decrementer frequency = 90000000/60 Calibrating delay loop... 23.71 BogoMIPS Memory: 13872k available (680k kernel code, 416k data, 0k init) [c0000000,c10000 00] DENTRY hash table entries: 262144 (order: 9, 2097152 bytes) Buffer-cache hash table entries: 32768 (order: 5, 131072 bytes) Page-cache hash table entries: 4096 (order: 2, 16384 bytes) POSIX conformance testing by UNIFIX Linux NET4.0 for Linux 2.2 Based upon Swansea University Computer Society NET3.039 NET4: Unix domain sockets 1.0 for Linux NET4.0. NET4: Linux TCP/IP 1.0 for NET4.0 IP Protocols: ICMP, UDP, TCP, IGMP TCP: Hash tables configured (ehash 16384 bhash 16384) Starting kswapd v 1.5 CPM UART driver version 0.02 ttyS00 at 0x0280 is a SMC ttyS01 at 0x0380 is a SMC RAM disk driver initialized: 16 RAM disks of 4096K size RAMDISK: Compressed image found at block 0 page fault in interrupt handler, addr=2c80001e NIP: C000FE90 XER: 8000917D LR: C000FCE0 REGS: c0117240 TRAP: 0300 MSR: 00001032 EE: 0 PR: 0 FP: 0 ME: 1 IR/DR: 11 TASK = c0116000[1] 'swapper' mm->pgd c00ba000 Last syscall: 120 last math 00000000 GPR00: C00BF09C C0117330 C0116000 00000001 00008000 00000000 00000001 000001FE GPR08: 7FFFFFFF 60000000 2C80001E C05EFEE8 0000000E 00000000 00000000 00000000 GPR16: 00000000 00000000 00000000 00000000 00001032 00117380 C00AAA70 C00D0000 GPR24: C00C0000 C00C0000 C00C0000 C00BF09C 00000000 90090208 3800001E C0117330 NIP: C000FE90 XER: 8000917D LR: C000FCE0 REGS: c0117240 TRAP: 0300 MSR: 00001032 EE: 0 PR: 0 FP: 0 ME: 1 IR/DR: 11 TASK = c0116000[1] 'swapper' mm->pgd c00ba000 Last syscall: 120 last math 00000000 GPR00: C00BF09C C0117330 C0116000 00000001 00008000 00000000 00000001 000001FE GPR08: 7FFFFFFF 60000000 2C80001E C05EFEE8 0000000E 00000000 00000000 00000000 GPR16: 00000000 00000000 00000000 00000000 00001032 00117380 C00AAA70 C00D0000 GPR24: C00C0000 C00C0000 C00C0000 C00BF09C 00000000 90090208 3800001E C0117330 Call backtrace: C000FC78 C0017178 C00024F8 C009799C C009838C C00984D4 C0098558 C0098A94 C0098FD8 C0096D00 C009701C C009631C C000323C C0003358 C00079D4 Kernel panic: kernel access of bad area pc c000fe90 lr c000fce0 address 2C80001E tsk swapper/1 ===================================================================== symtab is: c000f824 t update_wall_time_one_tick c000f92c t update_wall_time c000f9b0 T update_one_process c000fae8 t update_process_times c000fba8 t timer_bh c000ff18 T do_timer ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/