03-30-2019 08:08 AM
Hello,
I am trying to add some utilities to my PetaLinux build (v2018.2) on a Zedboard, including gdb, zip, and vim. I go into the configuration menu (petalinux-config -c rootfs) and select the utilities to add, save the configuration, and run petalinux-build. When I copy the resulting BOOT.BIN and image.ub files to an SD card and attempt to boot, I get a kernel panic. Xilinx UG1144 (pp. 51-52) states that if the image size changes (which I believe it must after adding all of those utilities), you should change the CONFIG_SYS_BOOTM_LEN parameter in platform-top.h to a size larger than the image size, and undefine CONFIG_SYS_BOOTMAPSZ in the same file. I didn't notice CONFIG_SYS_BOOTMAPSZ actually being defined in platform-top.h, but I threw in a #undef for it anyway. None of this worked, and the kernel still panics on boot. Below is the boot output:
U-Boot 2018.01 (Mar 30 2019 - 10:39:10 -0400) Model: Zynq Zed Development Board Board: Xilinx Zynq Silicon: v3.1 DRAM: ECC disabled 512 MiB MMC: sdhci@e0100000: 0 (SD) SF: Detected s25fl256s_64k with page size 256 Bytes, erase size 64 KiB, total 32 MiB *** Warning - bad CRC, using default environment In: serial@e0001000 Out: serial@e0001000 Err: serial@e0001000 Model: Zynq Zed Development Board Board: Xilinx Zynq Silicon: v3.1 Net: ZYNQ GEM: e000b000, phyaddr 0, interface rgmii-id eth0: ethernet@e000b000 U-BOOT for avnet-digilent-zedboard-2018_2 ethernet@e000b000 Waiting for PHY auto negotiation to complete......... TIMEOUT ! Hit any key to stop autoboot: 0 Device: sdhci@e0100000 Manufacturer ID: 3 OEM: 5344 Name: SS32G Tran Speed: 50000000 Rd Block Len: 512 SD version 3.0 High Capacity: Yes Capacity: 29.7 GiB Bus Width: 4-bit Erase Group Size: 512 Bytes reading image.ub 138610792 bytes read in 7524 ms (17.6 MiB/s) ## Loading kernel from FIT Image at 10000000 ... Using 'conf@system-top.dtb' configuration Verifying Hash Integrity ... OK Trying 'kernel@1' kernel subimage Description: Linux kernel Type: Kernel Image Compression: gzip compressed Data Start: 0x10000108 Data Size: 3825017 Bytes = 3.6 MiB Architecture: ARM OS: Linux Load Address: 0x00008000 Entry Point: 0x00008000 Hash algo: sha1 Hash value: bcd4ab7a45df06f49d0d19a6a410bf10e5f84556 Verifying Hash Integrity ... sha1+ OK ## Loading ramdisk from FIT Image at 10000000 ... Using 'conf@system-top.dtb' configuration Trying 'ramdisk@1' ramdisk subimage Description: petalinux-user-image Type: RAMDisk Image Compression: gzip compressed Data Start: 0x103a99d8 Data Size: 134768897 Bytes = 128.5 MiB Architecture: ARM OS: Linux Load Address: unavailable Entry Point: unavailable Hash algo: sha1 Hash value: f478f57bb77a16deee88c3bbbf73db0ff8ed9d81 Verifying Hash Integrity ... sha1+ OK ## Loading fdt from FIT Image at 10000000 ... Using 'conf@system-top.dtb' configuration Trying 'fdt@system-top.dtb' fdt subimage Description: Flattened Device Tree blob Type: Flat Device Tree Compression: uncompressed Data Start: 0x103a5f84 Data Size: 14739 Bytes = 14.4 KiB Architecture: ARM Hash algo: sha1 Hash value: 861ab5ee88e4dd3680d9941a0012c8f73a270fa5 Verifying Hash Integrity ... sha1+ OK Booting using the fdt blob at 0x103a5f84 Uncompressing Kernel Image ... OK Loading Ramdisk to 17293000, end 1f319901 ... OK Loading Device Tree to 1728c000, end 17292992 ... OK Starting kernel ... Booting Linux on physical CPU 0x0 Linux version 4.14.0-xilinx-v2018.2 (oe-user@oe-host) (gcc version 7.2.0 (GCC)) #1 PREEMPT Sat Mar 30 10:48:17 EDT 2019 CPU: ARMv7 Processor [413fc090] revision 0 (ARMv7), cr=18c52c79 CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache OF: fdt: Machine model: Zynq Zed Development Board bootconsole [earlycon0] enabled Memory policy: Data cache writeback cma: Reserved 16 MiB at 0x16000000 CPU: All CPU(s) started in SVC mode. Built 1 zonelists, mobility grouping on. Total pages: 130048 Kernel command line: console=ttyPS0,115200 earlyprintk PID hash table entries: 2048 (order: 1, 8192 bytes) Dentry cache hash table entries: 65536 (order: 6, 262144 bytes) Inode-cache hash table entries: 32768 (order: 5, 131072 bytes) Memory: 361536K/524288K available (6144K kernel code, 255K rwdata, 1536K rodata, 1024K init, 134K bss, 146368K reserved, 16384K cma-reserved, 0K highmem) Virtual kernel memory layout: vector : 0xffff0000 - 0xffff1000 ( 4 kB) fixmap : 0xffc00000 - 0xfff00000 (3072 kB) vmalloc : 0xe0800000 - 0xff800000 ( 496 MB) lowmem : 0xc0000000 - 0xe0000000 ( 512 MB) pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB) modules : 0xbf000000 - 0xbfe00000 ( 14 MB) .text : 0xc0008000 - 0xc0700000 (7136 kB) .init : 0xc0900000 - 0xc0a00000 (1024 kB) .data : 0xc0a00000 - 0xc0a3fd20 ( 256 kB) .bss : 0xc0a3fd20 - 0xc0a616bc ( 135 kB) Preemptible hierarchical RCU implementation. Tasks RCU enabled. NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16 efuse mapped to e0800000 slcr mapped to e0802000 zynq_clock_init: clkc starts at e0802100 Zynq clock init sched_clock: 64 bits at 333MHz, resolution 3ns, wraps every 4398046511103ns clocksource: arm_global_timer: mask: 0xffffffffffffffff max_cycles: 0x4ce07af025, max_idle_ns: 440795209040 ns Switching to timer-based delay loop, resolution 3ns clocksource: ttc_clocksource: mask: 0xffff max_cycles: 0xffff, max_idle_ns: 537538477 ns timer #0 at e0808000, irq=17 Console: colour dummy device 80x30 Calibrating delay loop (skipped), value calculated using timer frequency.. 666.66 BogoMIPS (lpj=3333333) pid_max: default: 32768 minimum: 301 Mount-cache hash table entries: 1024 (order: 0, 4096 bytes) Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes) CPU: Testing write buffer coherency: ok Setting up static identity map for 0x100000 - 0x100060 Hierarchical SRCU implementation. devtmpfs: initialized random: get_random_u32 called from bucket_table_alloc+0x12c/0x178 with crng_init=0 VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4 clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns futex hash table entries: 256 (order: -1, 3072 bytes) pinctrl core: initialized pinctrl subsystem random: fast init done NET: Registered protocol family 16 DMA: preallocated 256 KiB pool for atomic coherent allocations cpuidle: using governor menu hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers. hw-breakpoint: maximum watchpoint size is 4 bytes. zynq-ocm f800c000.ocmc: ZYNQ OCM pool: 256 KiB @ 0xe0840000 zynq-pinctrl 700.pinctrl: zynq pinctrl initialized e0001000.serial: ttyPS0 at MMIO 0xe0001000 (irq = 24, base_baud = 3125000) is a xuartps console [ttyPS0] enabled console [ttyPS0] enabled bootconsole [earlycon0] disabled bootconsole [earlycon0] disabled vgaarb: loaded SCSI subsystem initialized usbcore: registered new interface driver usbfs usbcore: registered new interface driver hub usbcore: registered new device driver usb media: Linux media interface: v0.10 Linux video capture interface: v2.00 pps_core: LinuxPPS API ver. 1 registered pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it> PTP clock support registered EDAC MC: Ver: 3.0.0 FPGA manager framework fpga-region fpga-full: FPGA Region probed Advanced Linux Sound Architecture Driver Initialized. clocksource: Switched to clocksource arm_global_timer NET: Registered protocol family 2 TCP established hash table entries: 4096 (order: 2, 16384 bytes) TCP bind hash table entries: 4096 (order: 2, 16384 bytes) TCP: Hash tables configured (established 4096 bind 4096) UDP hash table entries: 256 (order: 0, 4096 bytes) UDP-Lite hash table entries: 256 (order: 0, 4096 bytes) NET: Registered protocol family 1 RPC: Registered named UNIX socket transport module. RPC: Registered udp transport module. RPC: Registered tcp transport module. RPC: Registered tcp NFSv4.1 backchannel transport module. Trying to unpack rootfs image as initramfs... rootfs image is not initramfs (write error); looks like an initrd /initrd.image: incomplete write (-28 != 134768897) Freeing initrd memory: 131612K hw perfevents: no interrupt-affinity property for /pmu@f8891000, guessing. hw perfevents: enabled with armv7_cortex_a9 PMU driver, 7 counters available workingset: timestamp_bits=30 max_order=17 bucket_order=0 jffs2: version 2.2. (NAND) (SUMMARY) © 2001-2006 Red Hat, Inc. io scheduler noop registered io scheduler deadline registered io scheduler cfq registered (default) io scheduler mq-deadline registered io scheduler kyber registered dma-pl330 f8003000.dmac: Loaded driver for PL330 DMAC-241330 dma-pl330 f8003000.dmac: DBUFF-128x8bytes Num_Chans-8 Num_Peri-4 Num_Events-16 brd: module loaded loop: module loaded m25p80 spi0.0: found s25fl256s1, expected n25q512a m25p80 spi0.0: s25fl256s1 (32768 Kbytes) 4 ofpart partitions found on MTD device spi0.0 Creating 4 MTD partitions on "spi0.0": 0x000000000000-0x000000500000 : "boot" 0x000000500000-0x000000520000 : "bootenv" 0x000000520000-0x000000fa0000 : "kernel" 0x000000fa0000-0x000002000000 : "spare" libphy: Fixed MDIO Bus: probed CAN device driver interface libphy: MACB_mii_bus: probed macb e000b000.ethernet eth0: Cadence GEM rev 0x00020118 at 0xe000b000 irq 26 (00:0a:35:00:1e:53) Marvell 88E1510 e000b000.ethernet-ffffffff:00: attached PHY driver [Marvell 88E1510] (mii_bus:phy_addr=e000b000.ethernet-ffffffff:00, irq=POLL) e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k e1000e: Copyright(c) 1999 - 2015 Intel Corporation. ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver ehci-pci: EHCI PCI platform driver usbcore: registered new interface driver usb-storage chipidea-usb2 e0002000.usb: e0002000.usb supply vbus not found, using dummy regulator ULPI transceiver vendor/product ID 0x0451/0x1507 Found TI TUSB1210 ULPI transceiver. ULPI integrity check: passed. ci_hdrc ci_hdrc.0: EHCI Host Controller ci_hdrc ci_hdrc.0: new USB bus registered, assigned bus number 1 ci_hdrc ci_hdrc.0: USB 2.0 started, EHCI 1.00 hub 1-0:1.0: USB hub found hub 1-0:1.0: 1 port detected i2c /dev entries driver IR NEC protocol handler initialized IR RC5(x/sz) protocol handler initialized IR RC6 protocol handler initialized IR JVC protocol handler initialized IR Sony protocol handler initialized IR SANYO protocol handler initialized IR Sharp protocol handler initialized IR MCE Keyboard/mouse protocol handler initialized IR XMP protocol handler initialized cdns-wdt f8005000.watchdog: Xilinx Watchdog Timer at e0942000 with timeout 10s EDAC MC: ECC not enabled Xilinx Zynq CpuIdle Driver started sdhci: Secure Digital Host Controller Interface driver sdhci: Copyright(c) Pierre Ossman sdhci-pltfm: SDHCI platform and OF driver helper mmc0: SDHCI controller on e0100000.sdhci [e0100000.sdhci] using ADMA ledtrig-cpu: registered to indicate activity on CPUs usbcore: registered new interface driver usbhid usbhid: USB HID core driver fpga_manager fpga0: Xilinx Zynq FPGA Manager registered mmc0: new high speed SDHC card at address aaaa mmcblk0: mmc0:aaaa SS32G 29.7 GiB mmcblk0: p1 p2 NET: Registered protocol family 10 Segment Routing with IPv6 sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver NET: Registered protocol family 17 can: controller area network core (rev 20170425 abi 9) NET: Registered protocol family 29 can: raw protocol (rev 20170425) can: broadcast manager protocol (rev 20170425 t) can: netlink gateway (rev 20170425) max_hops=1 hctosys: unable to open rtc device (rtc0) of_cfs_init of_cfs_init: OK ALSA device list: No soundcards found. RAMDISK: Couldn't find valid RAM disk image starting at 0. VFS: Cannot open root device "(null)" or unknown-block(0,0): error -6 Please append a correct "root=" boot option; here are the available partitions: 0100 16384 ram0 (driver?) 0101 16384 ram1 (driver?) 0102 16384 ram2 (driver?) 0103 16384 ram3 (driver?) 0104 16384 ram4 (driver?) 0105 16384 ram5 (driver?) 0106 16384 ram6 (driver?) 0107 16384 ram7 (driver?) 0108 16384 ram8 (driver?) 0109 16384 ram9 (driver?) 010a 16384 ram10 (driver?) 010b 16384 ram11 (driver?) 010c 16384 ram12 (driver?) 010d 16384 ram13 (driver?) 010e 16384 ram14 (driver?) 010f 16384 ram15 (driver?) 1f00 5120 mtdblock0 (driver?) 1f01 128 mtdblock1 (driver?) 1f02 10752 mtdblock2 (driver?) 1f03 16768 mtdblock3 (driver?) b300 31166976 mmcblk0 driver: mmcblk b301 8388608 mmcblk0p1 7d296fa6-01 b302 22775808 mmcblk0p2 7d296fa6-02 Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
I should note that if I remove all of these utilities, Petalinux boots as expected and there are no issues. It's only when I add these utilities through the petalinux-config -c rootfs command that this issue arises.
Any help in resolving this issue would be very much appreciated as I would potentially like to add even more utilities to the rootfs in the future, and this issue is preventing that.
Thank you.
05-08-2019 06:16 PM
So I think the issue (for me at least, and possibly for you) was that the rootfs was too big to fit into RAM with the added utilities. The steps below show how to put the rootfs into its own partition on an SD card. It's a summary of the information that can be found in Xilinx UG 1144 v2018.2, pp. 55-56. For me, I had 3 partitions on my SD card: BOOT, rootfs, and EXTRA, where BOOT had BOOT.bin and image.ub, and EXTRA had things that I didn't want to have to put back into the rootfs partition when rebuilding the PetaLinux project.
Hope this helps.
03-31-2019 11:24 PM
Hi @ngc6027
You need to do this below chnages , it should work.
Note: If kernel or rootfs size increases and is greater than 128 MB, you need to do the following:
1. Mention the Bootm length in platform-top.h
#define CONFIG_SYS_BOOTM_LEN <value greater then image size>
2. Undef the CONFIG_SYS_BOOTMAPSZ in platform-top.h
Thanks & regards
Aravind
04-01-2019 08:12 AM
@aravindb I noticed that line in UG1144 and did those things before making my initial post. I mentioned that there was no CONFIG_SYS_BOOTMAPSZ defined in platform-top.h, but I did a #undef for it anyway. I also increased the CONFIG_SYS_BOOTM_LEN parameter to a value greater than what I believe is the image size (I think I set it to 512 MB to be safe), but I don't know how to determine the actual image size. Is it the size of the image.ub file? The size of that file is 132 MB.
To clarify, with those changes above, I get the output copied in my initial post. Is there some other step that I'm missing? Do I need to include files other than BOOT.BIN and image.ub on the SD card?
Thanks for your response.
04-03-2019 09:05 AM
05-08-2019 06:06 PM
I am seeing same issue after adding OpenCV. Anyone fixed this yet?
05-08-2019 06:16 PM
So I think the issue (for me at least, and possibly for you) was that the rootfs was too big to fit into RAM with the added utilities. The steps below show how to put the rootfs into its own partition on an SD card. It's a summary of the information that can be found in Xilinx UG 1144 v2018.2, pp. 55-56. For me, I had 3 partitions on my SD card: BOOT, rootfs, and EXTRA, where BOOT had BOOT.bin and image.ub, and EXTRA had things that I didn't want to have to put back into the rootfs partition when rebuilding the PetaLinux project.
Hope this helps.
05-08-2019 06:18 PM
05-08-2019 06:21 PM
@johnfrye11 Shoot me a message if you need any additional help with that. The summary I posted here is also part of a tutorial I’m writing for my research lab, so if something is unclear, I’d like to update the instructions.
05-08-2019 06:26 PM
Hi @johnfrye11 , @ngc6027 ,
If the INITRAMFS image size is larger then it is recommeded to use with ext4 filesystem not FIT image(image.ub)
Based on it is visible that the most likely there is no enough space in shmem that's why it is failing.
For smaller rootfs sizes it can fit that's why no message is shown.
In failure case, its using tmpfs and in working case its using ramfs.
This means it works without root= as long as the root filesystem can fit in tmpfs. In this case, when you increase the filesystem size which can't fit in tmpfs and hence root=/dev/ram option is needed in order to let linux use ramfs instead of tmpfs.
You can try adding this option in device-tree
chosen { bootargs = "console=ttyPS0,115200 earlyprintk root=/dev/ram"; stdout-path = "serial0:115200n8"; };
Note: This is not a perfect solution and do not to use in production.
05-08-2019 07:31 PM
I am still getting a very similar error message.
[ 4.025642] VFS: Cannot open root device "mmcblk0p2" or unknown-block(179,2): error -30 [ 4.033639] Please append a correct "root=" boot option; here are the available partitions: [ 4.041996] 0100 65536 ram0 [ 4.041998] (driver?) [ 4.048090] 0101 65536 ram1 [ 4.048091] (driver?) [ 4.054179] 0102 65536 ram2 [ 4.054180] (driver?) [ 4.060259] 0103 65536 ram3 [ 4.060260] (driver?) [ 4.066347] 0104 65536 ram4 [ 4.066348] (driver?) [ 4.072432] 0105 65536 ram5 [ 4.072434] (driver?) [ 4.078517] 0106 65536 ram6 [ 4.078519] (driver?) [ 4.084602] 0107 65536 ram7 [ 4.084603] (driver?) [ 4.090684] 0108 65536 ram8 [ 4.090685] (driver?) [ 4.096773] 0109 65536 ram9 [ 4.096774] (driver?) [ 4.102851] 010a 65536 ram10 [ 4.102853] (driver?) [ 4.109027] 010b 65536 ram11 [ 4.109028] (driver?) [ 4.115194] 010c 65536 ram12 [ 4.115196] (driver?) [ 4.121370] 010d 65536 ram13 [ 4.121372] (driver?) [ 4.127537] 010e 65536 ram14 [ 4.127539] (driver?) [ 4.133713] 010f 65536 ram15 [ 4.133715] (driver?) [ 4.139883] 1f00 1024 mtdblock0 [ 4.139884] (driver?) [ 4.146403] 1f01 256 mtdblock1 [ 4.146405] (driver?) [ 4.152925] 1f02 22528 mtdblock2 [ 4.152927] (driver?) [ 4.159436] b300 7639040 mmcblk0 [ 4.159438] driver: mmcblk [ 4.166221] b301 1048576 mmcblk0p1 7539477a-01 [ 4.166222] [ 4.172999] b302 6589440 mmcblk0p2 7539477a-02 [ 4.173001] [ 4.179773] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(179,2) [ 4.188194] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.14.0-xilinx-v2018.3 #8 [ 4.195395] Hardware name: xlnx,zynqmp (DT) [ 4.199562] Call trace: [ 4.202001] [<ffffff8008088c58>] dump_backtrace+0x0/0x368 [ 4.207385] [<ffffff8008088fd4>] show_stack+0x14/0x20 [ 4.212421] [<ffffff8008a3f7f8>] dump_stack+0x9c/0xbc [ 4.217463] [<ffffff800809bdc0>] panic+0x11c/0x274 [ 4.222246] [<ffffff8008d91124>] mount_block_root+0x1a8/0x27c [ 4.227973] [<ffffff8008d91430>] mount_root+0x11c/0x134 [ 4.233181] [<ffffff8008d915b4>] prepare_namespace+0x16c/0x1b4 [ 4.238996] [<ffffff8008d90d44>] kernel_init_freeable+0x1b8/0x1d8 [ 4.245073] [<ffffff8008a51b48>] kernel_init+0x10/0x100 [ 4.250281] [<ffffff8008084a90>] ret_from_fork+0x10/0x18 [ 4.255576] SMP: stopping secondary CPUs [ 4.259482] Kernel Offset: disabled [ 4.262952] CPU features: 0x002004
I guess it is not reading the rootfs off the SD properly?
What are your configs under
misc/config System Config→ Subsystem AUTO Hardware Settings → Advanced bootable images storage Settings
05-08-2019 07:52 PM
Hi @johnfrye11 ,
Do you see the command line bootargs in boot logs?
I'm not using FIT due to this issue in kernel hence we go with ext4 filesystem on SD.
05-08-2019 08:02 PM
I sent you my whole bootlogs but I think this is what you want.
[ 0.000000] Kernel command line: earlycon console=ttyPS0,115200 clk_ignore_unused root=/dev/mmcblk0p2 rw rootwait
Not sure where I would need to change PetaLinux, quite how it relates to this log, but let me know any suggestion and I can try it? Should I use different PetaLinux-generated file instead of image.ub?
05-09-2019 01:37 PM
I also tried what the guide says to do
Problem Description: This message indicates that the Linux kernel is unable to mount EXT4 File System and unable to find working init.
Solution: Extract RootFS in rootfs partition of SD card. For more information, see the Copying Image Files.
I still get the same error on boot.