From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <3D3E22EE.DF4F3F83@gigabitnetworks.com> Date: Tue, 23 Jul 2002 20:45:50 -0700 From: James F Dougherty MIME-Version: 1.0 To: linuxppc-embedded@lists.linuxppc.org Subject: Mount failures on custom 8245 H/W Content-Type: text/plain; charset=us-ascii Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: Hi, My h/w is an 8245 using internal UART, onboard BCM5701 Gig-E, dual DOC and 64MB PC100 SDRAM. I am running PPCBoot 1.1.4 and Linux 2.4.2 from MontaVista HHL20. I am using Denx ELDK for root-fs and toolchains. My Memory map is below: 0x00000000 - 0x40000000 - 64MB SDRAM SIMM (Unregistered PC-100 SDRAM DIMM Module) 0xFF000000 - 0xFF001FFF - M-Systems DiskOnChip (TM) 2000 TSOP 16MB (MD2211-D16-V3) 0x70000000 - 0x70001FFF - M-Systems DiskOnChip (TM) 2000 DIP32 (Socketed 16MB - 1GB ) * NOTE: this is not populated on all systems. 0x7c000000 - 0x7c000000 - Reset Register (Write 0 to reset) 0x7c000001 - 0x7c000001 - System LED (Clear Bit 7 to turn on, set to shut off) 0x7c000002 - 0x7c000002 - M48T59 Watchdog IRQ3 (Clear bit 7 to reset, set to assert IRQ3) 0x7c000003 - 0x7c000003 - M48T59 Write-Protect Register (Clear bit 7 to make R/W, set to make R/O) 0x7c002000 - 0x7c002003 - Infineon OSRAM DLR2416 4 Character 5x7 Dot Matrix Alphanumeric Display (Each byte sets the appropriate character) 0x7c004000 - 0x7c005FF0 - SGS-THOMSON M48T59Y 8K NVRAM/RTC NVRAM Memory Region 0x7c005FF0 - 0x7c005FFF - SGS-THOMSON M48T59Y 8K NVRAM/RTC Realtime Clock Registers 0xFFF00000 - 0xFFF80000 - 512K PLCC32 BootRom After reading through the documentation, I decided not to use any I/O devices from 0x70000000-0x7FFFFFFF (MPC8245 EXTROM space) after having previously used ioremap() for all of my I/O spaces, including the MPC8245 internal UART after the EUMBBAR gets remapped in mpc10x_common.c. At this point, I have a very basic system, without a TOD, and only UART and Ethernet (in other words, I'm only using CPU registers and the PCI Bus). I am fairly confident in my H/W and the memory initialization, primarily because VxWorks runs perfectly on the same platform with some very memory intensive applications. Anyhow, my system boots, and mounts root via NFS, however, when I try to mount proc, it crashes and gives me the errors below. Anyone have an idea what could be wrong? I wonder -- could a misbehaving driver with bogus procfs entries be causing this problem? Thanks, -James Notes: c0040520 T sys_mount c0003ffc T ret_from_syscall_1 VFS: Mounted root (nfs filesystem). Freeing unused kernel memory: 72k init 4k openfirmware modprobe: modprobe: Can't open dependencies file /lib/modules/2.4.2_hhl20/modules.dep (No such file or directory) INIT: version 2.78 booting Welcome to DENX Embedded Linux Environment Press 'I' to enter interactive startup. Mounting proc filesystem: Oops: Exception in kernel mode, sig: 4 NIP: C0040520 XER: 00000000 LR: C0003FFC SP: C3C7FE80 REGS: c3c7fdd0 TRAP: 0700 MSR: 00089032 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11 TASK = c3c7e000[18] 'mount' Last syscall: 21 last math c3c7e000 last altivec 00000000 GPR00: 00000054 C3C7FE80 C3C7E000 10020040 10020050 10020060 C0ED0000 00000000 GPR08: 10020061 C3C7FE90 C0040520 40442080 40442080 100262E8 00000000 100D0890 GPR16: 7FFFFC9C 7FFFFC98 10020000 00000000 00009032 03C7FE80 00000000 C0004268 GPR24: C0003FA0 10020020 7FFFFECA 00000000 10020040 00000000 00000000 7FFFFCA8 Call backtrace: C0003FFC FFFFFFFF 10002440 10002ED0 10003B5C 100048EC 0FEE5238 00000000 [FAILED] Configuring kernel parameters: [ OK ] RTC_RD_TIME: Invalid argument ioctl() to /dev/rtc to read the time failed. Setting clock : Wed Dec 31 19:00:28 EST 1969 [ OK ] Activating swap partitions: [ OK ] Setting hostname switch-2: [ OK ] grep: /proc/mounts: No such file or directory Checking root filesystem fsck: fsck.nfs: not found fsck: Error 2 while executing fsck.nfs for /dev/nfs [ OK ] Checking filesystems Checking all file systems. [ OK ] Mounting local filesystems: [ OK ] Enabling swap space: [ OK ] grep: /proc/cpuinfo: No such file or directory Oops: Exception in kernel mode, sig: 4 NIP: C0040520 XER: 00000000 LR: C0003FFC SP: C3A7FE80 REGS: c3a7fdd0 TRAP: 0700 MSR: 00089032 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11 TASK = c3a7e000[95] 'mount' Last syscall: 21 last math c3a7e000 last altivec 00000000 GPR00: 00000054 C3A7FE80 C3A7E000 10020038 10020048 10020058 C0ED0000 00000000 GPR08: 10020059 C3A7FE90 C0040520 40222088 40222088 100262E8 00000000 100D6ED0 GPR16: 7FFFFCAC 7FFFFCA8 10020000 00000000 00009032 03A7FE80 00000000 C0004268 GPR24: C0003FA0 10020018 7FFFFED0 00000000 10020038 00000000 00000000 7FFFFCB8 Call backtrace: C0003FFC FFFFFFFF 10002440 10002ED0 10003B5C 100048EC 0FEE5238 00000000 INIT: Entering runlevel: 3 grep: /proc/cmdline: No such file or directory Entering non-interactive startup Starting system logger: Oops: Exception in kernel mode, sig: 4 NIP: C0040520 XER: 00000000 LR: C0003FFC SP: C3A3DE80 REGS: c3a3ddd0 TRAP: 0700 MSR: 00089032 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11 TASK = c3a3c000[112] 'mount' Last syscall: 21 last math c3a3c000 last altivec 00000000 GPR00: 00000054 C3A3DE80 C3A3C000 10020050 10020060 10020070 C0ED0000 00000000 GPR08: 10020071 C3A3DE90 C0040520 40222080 40222080 100262E8 00000000 100AF350 GPR16: 7FFFFC9C 7FFFFC98 10020000 00000000 00009032 03A3DE80 00000000 C0004268 GPR24: C0003FA0 10020030 7FFFFEC6 00000000 10020050 00000000 00000000 7FFFFCA8 Call backtrace: C0003FFC FFFFFFFF 10002440 10002ED0 10003B5C 100048EC 0FEE5238 00000000 pidof: /proc not mounted, failed to mount. [ OK ] Starting kernel logger: Oops: Exception in kernel mode, sig: 4 NIP: C0040520 XER: 00000000 LR: C0003FFC SP: C39B1E80 REGS: c39b1dd0 TRAP: 0700 MSR: 00089032 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11 TASK = c39b0000[123] 'mount' Last syscall: 21 last math c39b0000 last altivec 00000000 GPR00: 00000054 C39B1E80 C39B0000 10020050 10020060 10020070 C0ED0000 00000000 GPR08: 10020071 C39B1E90 C0040520 40222080 40222080 100262E8 00000000 100DA250 GPR16: 7FFFFC9C 7FFFFC98 10020000 00000000 00009032 039B1E80 00000000 C0004268 GPR24: C0003FA0 10020030 7FFFFEC6 00000000 10020050 00000000 00000000 7FFFFCA8 Call backtrace: C0003FFC FFFFFFFF 10002440 10002ED0 10003B5C 100048EC 0FEE5238 00000000 pidof: /proc not mounted, failed to mount. [ OK ] Starting xinetd: Oops: Exception in kernel mode, sig: 4 NIP: C0040520 XER: 00000000 LR: C0003FFC SP: C3967E80 REGS: c3967dd0 TRAP: 0700 MSR: 00089032 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11 TASK = c3966000[139] 'mount' Last syscall: 21 last math c3966000 last altivec 00000000 GPR00: 00000054 C3967E80 C3966000 10020CD8 10020CE8 10020CF8 C0ED0000 00000000 GPR08: 10020CF9 C3967E90 C0040520 44222088 44222088 100262E8 00000000 100DD750 GPR16: 7FFFFC1C 7FFFFC18 10020000 00000000 00009032 03967E80 00000000 C0004268 GPR24: C0003FA0 10020CB8 7FFFFE61 00000000 10020CD8 00000000 00000000 7FFFFC28 Call backtrace: C0003FFC FFFFFFFF 10002440 10002ED0 10003B5C 100048EC 0FEE5238 00000000 pidof: /proc not mounted, failed to mount. [ OK ] switch-2 login: ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/