End_request I/o Error Dev Mtdblock0 Sector 0
Registered: 6 years ago Posts: 7 Hi, I use debian squeeze, and i have the following errors. Is it normal ? $ dmesg Linux version 2.6.35.4-dockstar (root@debian) (gcc version 4.4.5 20100728 (prerelease) (Debian 4.4.4-8) ) #5 PREEMPT Sun Aug 29 17:07:04 CEST 2010 CPU: Feroceon 88FR131 [56251311] revision 1 (ARMv5TE), cr=00053977 CPU: VIVT data cache, VIVT instruction cache Machine: Seagate Dockstar Board Memory policy: ECC disabled, Data cache writeback On node 0 totalpages: 32768 free_area_init_node: node 0, pgdat c05bf0cc, node_mem_map c0674000 Normal zone: 256 pages used for memmap Normal zone: 0 pages reserved Normal zone: 32512 pages, LIFO batch:7 Built 1 zonelists in Zone order, mobility grouping on. Total pages: 32512 Kernel command line: console=ttyS0,115200 root=/dev/sda1 rootdelay=10 rootfstype=ext2 mtdparts=orion_nand:1M(u-boot),4M(uImage),32M(rootfs),-(data) PID hash table entries: 512 (order: -1, 2048 bytes) Dentry cache hash table entries: 16384 (order: 4, 65536 bytes) Inode-cache hash table entries: 8192 (order: 3, 32768 bytes) Memory: 128MB = 128MB total Memory: 118748k/118748k available, 12324k reserved, 0K highmem Virtual kernel memory layout: vector : 0xffff0000 - 0xffff1000 ( 4 kB) fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB) DMA : 0xffc00000 - 0xffe00000 ( 2 MB) vmalloc : 0xc8800000 - 0xfe800000 ( 864 MB) lowmem : 0xc0000000 - 0xc8000000 ( 128 MB) modules : 0xbf000000 - 0xc0000000 ( 16 MB) .init : 0xc0008000 - 0xc002c000 ( 144 kB) .text : 0xc002c000 - 0xc056c000 (5376 kB) .data : 0xc058a000 - 0xc05c04a0 ( 218 kB) SLUB: Genslabs=11, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 Hierarchical RCU implementation. RCU-based detection of stalled CPUs is disabled. Verbose stalled-CPUs detection is disabled. NR_IRQS:114 Console: colour dummy devic
error on mtdblock0 and mtdblock4, is it the uboot partition? Pages 1 You must login or register to post a reply RSS topic feed Posts: 5 1 Topic by nijhawank 2016-02-27 19:58:45 nijhawank Member Offline Registered: 2012-08-05 Posts: 6 Topic: i/o error on mtdblock0 and mtdblock4, is it the uboot partition? Hi all,Recently on my netgear wndr4300, I started getting the following errors and the 5G radio stopped working...[ 10.320000] end_request: I/O error, dev mtdblock0, sector 128[ 10.320000] Buffer I/O error on device mtdblock0, logical block 16[ http://forum.doozan.com/read.php?2,557,560 10.330000] end_request: I/O error, dev mtdblock0, sector 128[ 10.330000] Buffer I/O error on device mtdblock0, logical block 16[ 10.470000] end_request: I/O error, dev mtdblock4, sector 72[ 10.470000] Buffer I/O error on device mtdblock4, logical block 9[ 10.490000] end_request: I/O error, dev mtdblock4, sector 128[ 10.490000] Buffer I/O error on device mtdblock4, logical block 16The errors don't appear continuously but only at bootup.I thought https://forum.openwrt.org/viewtopic.php?id=62988 there could be some corruption with the firmware so I thought to update to the latest openwrt.However, as per /proc/mtd, mtd0 is uboot and mtd4 is language partition. root@OpenWrt:~# cat /proc/mtddev: size erasesize namemtd0: 00040000 00020000 "u-boot"mtd1: 00040000 00020000 "u-boot-env"mtd2: 00040000 00020000 "caldata"mtd3: 00080000 00020000 "pot"mtd4: 00200000 00020000 "language"mtd5: 00080000 00020000 "config"mtd6: 00300000 00020000 "traffic_meter"mtd7: 00200000 00020000 "kernel"mtd8: 01700000 00020000 "ubi"mtd9: 01900000 00020000 "firmware"mtd10: 00040000 00020000 "caldata_backup"mtd11: 06000000 00020000 "reserved"I had some old md5s of all the partitions and comparing them with the current, everything was fine. That means uboot, caldata, pot etc. were intact i.e. no corruption.However, I found one thing, when I tried to do a md5sum on /dev/mtdblock0, it gave an error but an md5sum on mtd0 was fine and matching with my backup.Isn't mtdblock0 is same as mtd0 and maps to same nand region, just that former is a block device representation and later is a character special device?Anyways, I flashed the latest trunk openwrt and I still have the same errors...[ 10.586148] mount_root: loading kmods from internal overlay[ 10.786386] blk_update_request: I/O error, dev mtdblock0, sector 128[ 10.794196] blk_update_request:
mtdblock error Support for your TonidoPlug Post Reply Print view Search Advanced search 3 posts • Page 1 of 1 newl Veteran Tonidoid Posts: 67 http://www.tonido.com/forum/viewtopic.php?t=4290 Joined: Thu Jan 07, 2010 8:23 am mtdblock error Quote Postby newl » Tue Dec 06, 2011 4:01 am Hi gang,TP1 here, today I began receiving the following error. Based upon the device, I'm leaning towards an internal memory problem (the external USB drive is fine). Any thoughts on what specifically the problem could be and a solution end_request i/o if any?Probably relevant details from dmesg on further scrolling back appears to support an invalid memory situation:Code: Select allNAND device: Manufacturer ID: 0xec, Chip ID: 0xdc (Samsung NAND 512MiB 3,3V 8-bit)
Scanning device for bad blocks
Bad eraseblock 3690 at 0x00001cd40000
2 cmdlinepart partitions found on MTD device orion_nand
Creating 2 MTD partitions on "orion_nand":
0x000000100000-0x000000500000 : "uImage"
0x000000500000-0x000020000000 : "rootfs"
UBI: attaching mtd1 to ubi0
UBI: physical eraseblock size: 131072 bytes (128 KiB)
UBI: logical eraseblock size: 129024 bytes
UBI: smallest flash I/O unit: 2048
UBI: sub-page size: 512
UBI: VID header offset: 512 (aligned 512)
UBI: data offset: 2048
UBI: attached mtd1 to ubi0
UBI: MTD device name: "rootfs"
UBI: MTD device size: 507 MiB
UBI: number of good PEBs: 4055
UBI: number of bad PEBs: 1
Error messages:Code: Select allUBIFS: reserved for root: 4952683 bytes (4836 KiB)
VFS: Mounted root (ubifs filesystem) on device 253:1.
Freeing init memory: 140K
uncorrectable error : <3>end_request: I/O error, dev mtdblock0, sector 0
Buffer I/O error on device mtdblock0, logical block 0
uncorrectable error : <3>end_request: I/O error, dev mtdblock0, sector 8
Buffer I/O error on device mtdblock0, logical block 1
uncorrectable error : <3>end_request: