jffs2_scan_eraseblock(): Magic bitmask 0x1985 的解决办法

原创 已于 2023-07-07 08:38:42 修改 · 2.2k 阅读 · 14 ·
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#linux #运维 #服务器

于 2023-07-06 18:55:22 首次发布
文章讲述了在为V3S的flash烧录jffs文件系统时遇到的错误，问题源于flash不支持4k块擦除。作者尝试修改spi-nor.c配置并取消menuconfig中的4096Berasesectors选项，成功解决了Magicbitmask错误，进入到了文件系统。尽管网上有提到坏块问题，但作者在此过程中未遇到。

 最近在给V3S的flash烧录jffs文件系统镜像结果出现了如下图所示这种打印

 在网上找了很多网页资料，这是由于flash 不支持4k块擦除导致的，需要在spi-nor.c中将

 中的SECT_4K去掉，  改为下图所示

 我的flash型号是w25q128bv。

但是仍然还是出现jffs2_scan_eraseblock(): Magic bitmask 0x1985 这种错误

于是尝试将menuconfig 中的  Device Drivers > Memory Technology Device (MTD) support > SPI-NOR device support->Use small 4096 B erase sectors 选项取消选中，将[*]改为[ ]，如下图

 再make clean 后编译，这个报错便不见了，如下图已进入文件系统。

另外我在网上看到flash有坏块之类的说法，但是我这里没碰到，就这么解决了，以上过程仅供参考。

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Preparing for system initialization ---------[ 19.446124] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000000: 0x1881 instead [ 19.474706] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000004: 0x0004 instead [ 19.503190] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000008: 0x0001 instead [ 19.531621] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0000000c: 0x0391 instead [ 19.560049] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000010: 0x2f28 instead [ 19.588480] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000014: 0x4e2c instead [ 19.616907] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000018: 0xec86 instead [ 19.645334] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0000001c: 0x119e instead [ 19.673759] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000020: 0xad65 instead [ 19.702184] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000024: 0xb140 instead [ 19.730610] jffs2: Further such events for this erase block will not be printed [ 19.753987] random: fast init done [ 19.775170] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00010000: 0x1800 instead [ 19.803599] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00010004: 0x0008 instead [ 19.832025] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00010008: 0x30b0 instead [ 19.860450] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0001000c: 0xba61 instead [ 19.888877] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00010010: 0x53b7 instead [ 19.917302] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00010014: 0xe9ef instead [ 19.945726] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00010018: 0xc933 instead [ 19.974151] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0001001c: 0x4179 instead [ 20.002575] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00010020: 0xe3bd instead [ 20.031001] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00010024: 0x2d83 instead [ 20.059424] jffs2: Further such events for this erase block will not be printed [ 20.093711] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00020000: 0x1080 instead [ 20.122140] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00020004: 0x0008 instead [ 20.150567] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00020008: 0x3000 instead [ 20.178995] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0002000c: 0xd872 instead [ 20.207420] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00020010: 0xb15e instead [ 20.235846] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00020014: 0xe99f instead [ 20.264271] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00020018: 0xc2e9 instead [ 20.292694] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0002001c: 0xc147 instead [ 20.321261] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00020020: 0xc2ab instead [ 20.349698] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00020024: 0x60ca instead [ 20.378122] jffs2: Further such events for this erase block will not be printed [ 20.412415] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00030000: 0x0804 instead [ 20.440844] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00030004: 0x0008 instead [ 20.469273] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00030008: 0x1091 instead [ 20.497699] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0003000c: 0x74e7 instead [ 20.526123] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00030010: 0x0d0c instead [ 20.554547] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00030014: 0x4dfb instead [ 20.582972] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00030018: 0xcf68 instead [ 20.611399] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0003001c: 0x0dd1 instead [ 20.639824] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00030020: 0xf77e instead [ 20.668249] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00030024: 0xcc9b instead [ 20.696673] jffs2: Further such events for this erase block will not be printed [ 20.730985] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00040000: 0x1901 instead [ 20.759416] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00040008: 0xb030 instead [ 20.787844] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0004000c: 0xa543 instead [ 20.816269] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00040010: 0x0bc3 instead [ 20.844694] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00040014: 0x684c instead [ 20.873119] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00040018: 0xaeb5 instead [ 20.901545] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0004001c: 0x9c6f instead [ 20.929969] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00040020: 0x9e9b instead [ 20.958394] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00040024: 0x79cb instead [ 20.986818] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00040028: 0x1167 instead [ 21.015240] jffs2: Further such events for this erase block will not be printed [ 21.049544] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00050000: 0x0885 instead [ 21.077972] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00050004: 0x000c instead [ 21.106398] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00050008: 0xa021 instead [ 21.134824] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0005000c: 0x65c7 instead [ 21.163248] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00050010: 0xeb76 instead [ 21.191676] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00050014: 0xeec0 instead [ 21.220102] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00050018: 0x5b3c instead [ 21.248527] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0005001c: 0x443a instead [ 21.276952] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00050020: 0xcfc3 instead [ 21.305376] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00050024: 0xc576 instead [ 21.333801] jffs2: Further such events for this erase block will not be printed [ 21.368049] jffs2: Old JFFS2 bitmask found at 0x0005fa44 [ 21.383973] jffs2: You cannot use older JFFS2 filesystems with newer kernels [ 21.405202] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00060000: 0x0801 instead [ 21.433630] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00060008: 0x10b1 instead [ 21.462059] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0006000c: 0xe282 instead [ 21.490483] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00060010: 0xf1cd instead [ 21.518908] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00060014: 0x7996 instead [ 21.547332] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00060018: 0x802e instead [ 21.575758] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0006001c: 0x0472 instead [ 21.604185] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00060020: 0xb9a0 instead [ 21.632610] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00060024: 0x1a3e instead [ 21.661034] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00060028: 0x8395 instead [ 21.689456] jffs2: Further such events for this erase block will not be printed [ 21.733806] random: crng init done mount_dataFs done mount: mounting /dev/mtdblock4 on /tplink/image [ 22.403081] mvcpss: loading out-of-tree module taints kernel. failed: Invalid [ 22.422704] mvcpss: Function PCI loaded argument [ 22.439540] mvdma mvdma: Device created, major 245, minor 1 [ 22.460787] mvdma mvDma: assigned reserved memory node buffer@0x200000000 [ 22.481174] mvdma mvDma: Platform device driver registered [ 22.497912] mvcpss: Function DMA2 loaded [ 22.514668] mvMbusDrv mvMbusDrv: Device created, major 244, minor 1 [ 22.537940] mvcpss: Function MBUS loaded [ 22.549997] Version: 2.00 [ 22.558151] mvcpss: Function ETH loaded [ 22.572381] mvIntDrv mvIntDrv: Device created, major 243, minor 1 [ 22.595258] mvcpss: Function INT loaded --------------- Done /etc/fep_start_system.sh: cd: line 173: can't cd to /fep/bin: No such file or directory /etc/fep_start_system.sh: line 180: /tplink/app/sbin/switchInit: not found /etc/fep_start_system.sh: line 183: ./tprdMonitor: not found sh: can't open 'loop_check.sh': No such file or directory 交换机启动时，这样的报错是什么意思，该怎么解决
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