It's a cute little board isn't it! In getting this board going we had to work around a silicon bug which caused data corruption and forced us to run with caches off.
See "Solution 13": http://www.xilinx.com/xlnx/xil_ans_display.jsp?iLanguageID=1&iCountryID=1&getPagePath=20658 Check your PVR .. I found that exercising the memory with a small C program reliably caused the board to crash. My previous post including a patch for this board: http://ozlabs.org/pipermail/linuxppc-embedded/2006-April/022583.html .. and we're using the UartLite. - aidan Martin, Tim wrote: > I have been working with a small module made by Memec/Avnet > (FX12MM1-BASE) that has a Virtex-4 FX12 with some DDR SDRAM, a Gigabit > Ethernet PHY, some FLASH, etc. I am using EDK 8.1 and generated the BSP > for MontaVista 3.1 "preview kit" (which is based on the 2.4.20 kernel). > This works, but occasionally panics while booting (doesn't panic all the > time, maybe 1/3 the time). Examples of "good" boot and 2 "crash" boots > below. We are using a root filesystem over NFS, and the panics seem to > always be after the file system is mounted. I'm not sure if it is NFS > related or not. > > I have also been working with the paulus 2.6 kernel tree (and I have > tried the MVL linux-xilinx-26 tree), but have not been able to get the > kernel to boot. The primary problem there is that we are using the > uartlite instead of the full uart, and the patches I have found for > uartlite support don't work. I can get the early serial messages to > work, but I don't know enough about the console and serial core to get > everything else working. I am also getting panics that seem to be > non-serial related, but I haven't tracked it down yet. > > So two questions: > > 1) Is there anything obvious from the kernel panics below that I should > be looking for? Just the answer "linux 2.4.20 is really fricken old, > upgrade" is probably the right answer. > > 2) Does anyone have working UartLite support on a Virtex-4 FX12 design? > > > ------------ Examples of 2.4.20 good: > > id mach(): done > MMU:enter > MMU:hw init > MMU:mapin > MMU:mapin_ram done > MMU:setio > MMU:exit > Linux version 2.4.20_mvl31-v4fx12 (ahamel at uhflinux) (gcc version 3.3.1 > (MontaVista 3.3.1-3.0.10.6 > setup_arch: enter > setup_arch: bootmem > Xilinx Virtex-II Pro port (C) 2002 MontaVista Software, Inc. > (source at mvista.com) > arch: exit > On node 0 totalpages: 16384 > zone(0): 16384 pages. > zone(1): 0 pages. > zone(2): 0 pages. > Kernel command line: root=/dev/nfs > nfsroot=192.168.1.1:/opt/montavista/previewkit/ppc/405/target4 > Xilinx INTC #0 at 0x41200000 mapped to 0xFDFFF000 > Calibrating delay loop... 197.01 BogoMIPS > Memory: 63268k available (1092k kernel code, 340k data, 60k init, 0k > highmem) > Dentry cache hash table entries: 8192 (order: 4, 65536 bytes) > Inode cache hash table entries: 4096 (order: 3, 32768 bytes) > Mount-cache hash table entries: 1024 (order: 1, 8192 bytes) > Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes) > Page-cache hash table entries: 16384 (order: 4, 65536 bytes) > POSIX conformance testing by UNIFIX > > Linux NET4.0 for Linux 2.4 > Based upon Swansea University Computer Society NET3.039 > Initializing RT netlink socket > LSP Revision 42 > ikconfig 0.5 with /proc/ikconfig > Starting kswapd > Disabling the Out Of Memory Killer > devfs: v1.12c (20020818) Richard Gooch (rgooch at atnf.csiro.au) > devfs: boot_options: 0x1 > pty: 256 Unix98 ptys configured > xgpio #0 at 0x40020000 mapped to 0xC5000000 > xgpio #1 at 0x40040000 mapped to 0xC5011000 > xgpio #2 at 0x40060000 mapped to 0xC5022000 > xilinx_spi: got major number 254 > xilinx_spi0 at 0x40800000 mapped to 0xC5033000, irq=29 > RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize > loop: loaded (max 8 devices) > XTemac: Device instance #0 found > eth0: XTemac: using fifo direct interrupt driven mode. > eth0: XTemac: PHY detected at address 4. > eth0: Xilinx TEMAC #0 at 0x80400000 mapped to 0xC5044000, irq=28 > eth0: XTemac: id 1.0f, block id 5, type 8 > NET4: Linux TCP/IP 1.0 for NET4.0 > IP Protocols: ICMP, UDP, TCP, IGMP > IP: routing cache hash table of 512 buckets, 4Kbytes > TCP: Hash tables configured (established 4096 bind 8192) > eth0: XTemac: Options: 0xb8f0 > eth0: XTemac: We renegotiated the speed to: 1000 > eth0: XTemac: speed set to 1000Mb/s > Sending DHCP requests ., OK > IP-Config: Got DHCP answer from 192.168.1.1, my address is 192.168.1.75 > IP-Config: Complete: > device=eth0, addr=192.168.1.75, mask=255.255.255.0, > gw=192.168.1.1, > host=192.168.1.75, domain=, nis-domain=(none), > bootserver=192.168.1.1, rootserver=192.168.1.1, rootpath= > NET4: Unix domain sockets 1.0/SMP for Linux NET4.0. > Looking up port of RPC 100003/2 on 192.168.1.1 > Looking up port of RPC 100005/1 on 192.168.1.1 > VFS: Mounted root (nfs filesystem). > Mounted devfs on /dev > Freeing unused kernel memory: 60k init > serial console detected. Disabling virtual terminals. > init started: BusyBox v0.60.2 (2004.04.30-17:49+0000) multi-call binary > > Welcome to MontaVista Linux Preview Kit > > Starting system... > mounting /proc: done. > Mounting '/' read-only: done. > brining up loopback interface: done. > Mounting /tmp: done. > Starting syslogd: done. > Starting klogd: done. > Starting inetd: done. > Starting thttpd: done. > System started. > > MontaVista(R) Linux(R) Professional Edition 3.1, Preview Kit > > 192.168.1.75 login: > > ------ Example 1 of panic > > id mach(): done > MMU:enter > MMU:hw init > MMU:mapin > MMU:mapin_ram done > MMU:setio > MMU:exit > Linux version 2.4.20_mvl31-v4fx12 (ahamel at uhflinux) (gcc version 3.3.1 > (MontaVista 3.3.1-3.0.10.6 > setup_arch: enter > setup_arch: bootmem > Xilinx Virtex-II Pro port (C) 2002 MontaVista Software, Inc. > (source at mvista.com) > arch: exit > On node 0 totalpages: 16384 > zone(0): 16384 pages. > zone(1): 0 pages. > zone(2): 0 pages. > Kernel command line: root=/dev/nfs > nfsroot=192.168.1.1:/opt/montavista/previewkit/ppc/405/target4 > Xilinx INTC #0 at 0x41200000 mapped to 0xFDFFF000 > Calibrating delay loop... 197.01 BogoMIPS > Memory: 63268k available (1092k kernel code, 340k data, 60k init, 0k > highmem) > Dentry cache hash table entries: 8192 (order: 4, 65536 bytes) > Inode cache hash table entries: 4096 (order: 3, 32768 bytes) > Mount-cache hash table entries: 1024 (order: 1, 8192 bytes) > Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes) > Page-cache hash table entries: 16384 (order: 4, 65536 bytes) > POSIX conformance testing by UNIFIX > > Linux NET4.0 for Linux 2.4 > Based upon Swansea University Computer Society NET3.039 > Initializing RT netlink socket > LSP Revision 42 > ikconfig 0.5 with /proc/ikconfig > Starting kswapd > Disabling the Out Of Memory Killer > devfs: v1.12c (20020818) Richard Gooch (rgooch at atnf.csiro.au) > devfs: boot_options: 0x1 > pty: 256 Unix98 ptys configured > xgpio #0 at 0x40020000 mapped to 0xC5000000 > xgpio #1 at 0x40040000 mapped to 0xC5011000 > xgpio #2 at 0x40060000 mapped to 0xC5022000 > xilinx_spi: got major number 254 > xilinx_spi0 at 0x40800000 mapped to 0xC5033000, irq=29 > RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize > loop: loaded (max 8 devices) > XTemac: Device instance #0 found > eth0: XTemac: using fifo direct interrupt driven mode. > eth0: XTemac: PHY detected at address 4. > eth0: Xilinx TEMAC #0 at 0x80400000 mapped to 0xC5044000, irq=28 > eth0: XTemac: id 1.0f, block id 5, type 8 > NET4: Linux TCP/IP 1.0 for NET4.0 > IP Protocols: ICMP, UDP, TCP, IGMP > IP: routing cache hash table of 512 buckets, 4Kbytes > TCP: Hash tables configured (established 4096 bind 8192) > eth0: XTemac: Options: 0xb8f0 > eth0: XTemac: We renegotiated the speed to: 1000 > eth0: XTemac: speed set to 1000Mb/s > Sending DHCP requests ., OK > IP-Config: Got DHCP answer from 192.168.1.1, my address is 192.168.1.75 > IP-Config: Complete: > device=eth0, addr=192.168.1.75, mask=255.255.255.0, > gw=192.168.1.1, > host=192.168.1.75, domain=, nis-domain=(none), > bootserver=192.168.1.1, rootserver=192.168.1.1, rootpath= > NET4: Unix domain sockets 1.0/SMP for Linux NET4.0. > Looking up port of RPC 100003/2 on 192.168.1.1 > Looking up port of RPC 100005/1 on 192.168.1.1 > VFS: Mounted root (nfs filesystem). > Mounted devfs on /dev > Freeing unused kernel memory: 60k init > nfs: server 192.168.1.1 not responding, still trying > Oops: kernel access of bad area, sig: 11 > NIP: C00F05B4 XER: 20000000 LR: C00F0C80 SP: C0131C80 REGS: c0131bd0 > TRAP: 0800 Not tainted > MSR: 00009030 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11 > DEAR: 00000045, ESR: 00000000 > TASK = c0130020[0] 'swapper' Last syscall: 120 > last math 00000000 last altivec 00000000 > GPR00: C00CA728 C0131C80 C0130020 00000001 00001030 00000000 C02C9180 > C023F9F8 > GPR08: C02CA000 C0150000 00000003 00001DC7 84002022 1006E950 03FD0000 > 00000000 > GPR16: 00000001 00000001 FFFFFFFF 007FFF00 00001032 00131EE0 00000000 > C0000000 > GPR24: C0151D24 C02C90D0 C0150000 00000000 C0157F00 C02E8080 C02C90D8 > C02E8080 > Call backtrace: > C00F0A4C C00CA728 C00EED30 C00C2958 C00200DC C001BD20 C001BB9C > C001B868 C0005E48 C00047CC C00274E4 C0005D80 C0005D94 C0002434 > C01425CC C000232C > Kernel panic: Aiee, killing interrupt handler! > In interrupt handler - not syncing > <0>Rebooting in 180 seconds.. > > ------- Example 2 of crash > id mach(): done > MMU:enter > MMU:hw init > MMU:mapin > MMU:mapin_ram done > MMU:setio > MMU:exit > Linux version 2.4.20_mvl31-v4fx12 (ahamel at uhflinux) (gcc version 3.3.1 > (MontaVista 3.3.1-3.0.10.6 > setup_arch: enter > setup_arch: bootmem > Xilinx Virtex-II Pro port (C) 2002 MontaVista Software, Inc. > (source at mvista.com) > arch: exit > On node 0 totalpages: 16384 > zone(0): 16384 pages. > zone(1): 0 pages. > zone(2): 0 pages. > Kernel command line: root=/dev/nfs > nfsroot=192.168.1.1:/opt/montavista/previewkit/ppc/405/target4 > Xilinx INTC #0 at 0x41200000 mapped to 0xFDFFF000 > Calibrating delay loop... 197.01 BogoMIPS > Memory: 63268k available (1092k kernel code, 340k data, 60k init, 0k > highmem) > Dentry cache hash table entries: 8192 (order: 4, 65536 bytes) > Inode cache hash table entries: 4096 (order: 3, 32768 bytes) > Mount-cache hash table entries: 1024 (order: 1, 8192 bytes) > Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes) > Page-cache hash table entries: 16384 (order: 4, 65536 bytes) > POSIX conformance testing by UNIFIX > > Linux NET4.0 for Linux 2.4 > Based upon Swansea University Computer Society NET3.039 > Initializing RT netlink socket > LSP Revision 42 > ikconfig 0.5 with /proc/ikconfig > Starting kswapd > Disabling the Out Of Memory Killer > devfs: v1.12c (20020818) Richard Gooch (rgooch at atnf.csiro.au) > devfs: boot_options: 0x1 > pty: 256 Unix98 ptys configured > xgpio #0 at 0x40020000 mapped to 0xC5000000 > xgpio #1 at 0x40040000 mapped to 0xC5011000 > xgpio #2 at 0x40060000 mapped to 0xC5022000 > xilinx_spi: got major number 254 > xilinx_spi0 at 0x40800000 mapped to 0xC5033000, irq=29 > RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize > loop: loaded (max 8 devices) > XTemac: Device instance #0 found > eth0: XTemac: using fifo direct interrupt driven mode. > eth0: XTemac: PHY detected at address 4. > eth0: Xilinx TEMAC #0 at 0x80400000 mapped to 0xC5044000, irq=28 > eth0: XTemac: id 1.0f, block id 5, type 8 > NET4: Linux TCP/IP 1.0 for NET4.0 > IP Protocols: ICMP, UDP, TCP, IGMP > IP: routing cache hash table of 512 buckets, 4Kbytes > TCP: Hash tables configured (established 4096 bind 8192) > eth0: XTemac: Options: 0xb8f0 > eth0: XTemac: We renegotiated the speed to: 1000 > eth0: XTemac: speed set to 1000Mb/s > Sending DHCP requests ., OK > IP-Config: Got DHCP answer from 192.168.1.1, my address is 192.168.1.75 > IP-Config: Complete: > device=eth0, addr=192.168.1.75, mask=255.255.255.0, > gw=192.168.1.1, > host=192.168.1.75, domain=, nis-domain=(none), > bootserver=192.168.1.1, rootserver=192.168.1.1, rootpath= > NET4: Unix domain sockets 1.0/SMP for Linux NET4.0. > Looking up port of RPC 100003/2 on 192.168.1.1 > Looking up port of RPC 100005/1 on 192.168.1.1 > VFS: Mounted root (nfs filesystem). > Mounted devfs on /dev > Freeing unused kernel memory: 60k init > serial console detected. Disabling virtual terminals. > init started: BusyBox v0.60.2 (2004.04.30-17:49+0000) multi-call binary > > Welcome to MontaVista Linux Preview Kit > > Starting system... > mounting /proc: done. > Mounting '/' read-only: done. > brining up loopback interface: done. > Mounting /tmp: done. > Starting syslogd: done. > Starting klogd: done. > Starting inetd: done. > Starting thttpd: done. > System started. > Oops: Exception in kernel mode, sig: 4 > NIP: C010D660 XER: 00000000 LR: C010D6F0 SP: C3EB7E60 REGS: c3eb7db0 > TRAP: 0700 Not tainted > MSR: 00009030 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11 > TASK = c3eb6000[48] 'insmod' Last syscall: 90 > last math 00000000 last altivec 00000000 > GPR00: 00000001 C3EB7E60 C3EB6000 C3F06CD8 C014F524 C014DAE0 C014DB00 > C014DAF8 > GPR08: C014D000 C3F06C78 0000001C C014D9D8 24022222 00000000 300277F8 > 00000000 > GPR16: 10001AA1 7FFFF118 00000030 C0150000 00000000 FFFFFFF4 00000002 > 00000002 > GPR24: 00100077 00000032 00000000 00000001 C014F524 C014DAF8 C3F06CD8 > C014D9D8 > Call backtrace: > C002A84C C0029684 C0029BC0 C0009DE0 C000459C 3000646C 30007784 > 3000B810 3000CE68 3000C1F8 30002FE8 3000F7F0 30001FDC 30002434 > 30010904 > kernel BUG at mmap.c:1304! > Oops: Exception in kernel mode, sig: 4 > NIP: C002AD48 XER: 00000000 LR: C002AD48 SP: C3EB7C60 REGS: c3eb7bb0 > TRAP: 0700 Not tainted > MSR: 00009030 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11 > TASK = c3eb6000[48] 'insmod' Last syscall: 90 > last math 00000000 last altivec 00000000 > GPR00: C002AD48 C3EB7C60 C3EB6000 0000001B 00001030 00000001 00000F14 > C0139D93 > GPR08: 00000000 00000000 00000034 C3EB7B70 C0150000 00000000 300277F8 > 00000000 > GPR16: 10001AA1 7FFFF118 00000030 C0150000 00009032 03EB7DA0 00000000 > C00047D4 > GPR24: C0004BC4 C0150000 C0150000 00000000 00001000 7FFFF000 C014F520 > 00000000 > Call backtrace: > C002AD48 C0014684 C0019EE8 C000497C C00049EC C00047D4 C002A84C > C0029684 C0029BC0 C0009DE0 C000459C > > > > > _______________________________________________ > Linuxppc-embedded mailing list > Linuxppc-embedded at ozlabs.org > https://ozlabs.org/mailman/listinfo/linuxppc-embedded
