USB device becomes Read-Only and gets disconnected on RT-AC87U

[ionutz4u]

Hello.
For a few weeks i have a problem with my wireless router (RT-AC87U with Merlin Firmware 380.69_2).
I had entware installed on an 120 GB SSD, and after a few days i had an issue like one from the log below. The SSD became read only. Next day i installed entware on a 320 GB HDD connected on USB 3.0.. Worked for a few days, and again, same problem. Now, entware was installed on a 32 GB USB flash drive, connected on USB 2.0. It worked great for a few days, until today when i saw again the same problem.

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Mar 11 12:42:25 kernel: nvram: consolidating space!
Mar 11 13:30:50 kernel: IPv6: udp checksum is 0
Mar 13 19:12:23 kernel: nvram: consolidating space!
Mar 13 19:38:55 kernel: nvram: consolidating space!
Mar 15 19:43:50 kernel: nvram: consolidating space!
Mar 16 16:48:43 kernel: usb 2-2: reset high speed USB device using ehci_hcd and address 2
Mar 16 16:48:43 kernel: usb 2-2: device firmware changed
Mar 16 16:48:43 kernel: usb 2-2: USB disconnect, address 2
Mar 16 16:48:43 kernel: sd 0:0:0:0: [sda] Unhandled error code
Mar 16 16:48:43 kernel: sd 0:0:0:0: [sda] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK
Mar 16 16:48:43 kernel: sd 0:0:0:0: [sda] CDB: Write(10): 2a 00 00 00 00 3f 00 00 08 00
Mar 16 16:48:43 kernel: end_request: I/O error, dev sda, sector 63
Mar 16 16:48:43 kernel: Buffer I/O error on device sda1, logical block 0
Mar 16 16:48:43 kernel: lost page write due to I/O error on sda1
Mar 16 16:48:43 kernel: EXT2-fs (sda1): previous I/O error to superblock detected
Mar 16 16:48:43 kernel: EXT2-fs (sda1): previous I/O error to superblock detected
Mar 16 16:48:43 kernel: EXT2-fs (sda1): previous I/O error to superblock detected
Mar 16 16:48:43 kernel: usb 2-2: new high speed USB device using ehci_hcd and address 3
Mar 16 16:48:43 kernel: EXT2-fs (sda1): previous I/O error to superblock detected
Mar 16 16:48:43 kernel: EXT2-fs (sda1): previous I/O error to superblock detected
Mar 16 16:48:43 rc_service: hotplug 23797:notify_rc restart_nasapps
Mar 16 16:48:43 kernel: EXT2-fs (sda1): previous I/O error to superblock detected
Mar 16 16:48:43 kernel: EXT2-fs (sda1): previous I/O error to superblock detected
Mar 16 16:48:43 kernel: EXT2-fs (sda1): previous I/O error to superblock detected
Mar 16 16:48:43 kernel: EXT2-fs (sda1): previous I/O error to superblock detected
Mar 16 16:48:43 iTunes: daemon is stopped
Mar 16 16:48:43 FTP_Server: daemon is stopped
Mar 16 16:48:43 kernel: scsi1 : usb-storage 2-2:1.0
Mar 16 16:48:44 Samba_Server: smb daemon is stopped
Mar 16 16:48:44 kernel: gro disabled
Mar 16 16:48:44 mountd[1033]: Caught signal 15, un-registering and exiting.
Mar 16 16:48:44 kernel: nfsd: last server has exited, flushing export cache
Mar 16 16:48:44 statd[1027]: Caught signal 15, un-registering and exiting.
Mar 16 16:48:44 kernel: EXT2-fs (sda1): previous I/O error to superblock detected
Mar 16 16:48:44 hotplug[23798]: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:48:44 kernel: EXT2-fs (sda1): previous I/O error to superblock detected
Mar 16 16:48:44 kernel: scsi 1:0:0:0: Direct-Access 2307 PRAM 1.00 PQ: 0 ANSI: 0 CCS
Mar 16 16:48:44 kernel: sd 1:0:0:0: Attached scsi generic sg0 type 0
Mar 16 16:48:44 kernel: sd 1:0:0:0: [sdb] Attached SCSI removable disk
Mar 16 16:48:44 Timemachine: daemon is stopped
Mar 16 16:48:44 rc_service: hotplug 23798:notify_rc stop_nasapps
Mar 16 16:48:44 rc_service: waitting "restart_nasapps" via ...
Mar 16 16:48:51 kernel: EXT2-fs (sda1): previous I/O error to superblock detected
Mar 16 16:48:51 kernel: EXT2-fs (sda1): error: read_inode_bitmap: Cannot read inode bitmap - block_group = 134, inode_bitmap = 4390916
Mar 16 16:48:51 kernel: EXT2-fs (sda1): error: remounting filesystem read-only
Mar 16 16:49:14 rc_service: skip the event: stop_nasapps.
Mar 16 16:49:14 statd[23860]: Version 1.1.6 Starting
Mar 16 16:49:14 statd[23860]: statd running as root. chown /var/lib/nfs/sm to choose different user
Mar 16 16:49:15 kernel: svc: failed to register lockdv1 RPC service (errno 97).
Mar 16 16:49:15 syslog: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:49:15 kernel: EXT2-fs (sda1): error: ext2_get_inode: unable to read inode block - inode=2195759, block=4390926
Mar 16 16:49:15 kernel: EXT2-fs (sda1): error: remounting filesystem read-only
Mar 16 16:49:16 syslog: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:49:17 syslog: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:49:18 syslog: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:49:19 syslog: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:49:20 syslog: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:49:21 syslog: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:49:22 syslog: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:49:23 syslog: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:49:24 syslog: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:49:25 syslog: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:49:26 syslog: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:49:27 syslog: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:49:28 syslog: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:49:29 syslog: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:49:30 syslog: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:49:31 syslog: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:49:32 syslog: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:49:33 syslog: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:49:34 syslog: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:49:35 syslog: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:49:36 syslog: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:49:37 syslog: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:49:38 syslog: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:49:39 syslog: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:49:40 syslog: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:49:41 syslog: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:49:42 syslog: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:49:43 syslog: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:49:44 syslog: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:49:45 syslog: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:49:46 syslog: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:49:47 syslog: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:49:48 syslog: USB partition unmounted from /tmp/mnt/sda1 fail. (return -1, Bad file descriptor)
Mar 16 16:49:49 syslog: USB partition busy - will unmount ASAP from /tmp/mnt/sda1
Mar 16 16:49:49 rc_service: hotplug 23798:notify_rc restart_nasapps
Mar 16 16:49:49 iTunes: daemon is stopped
Mar 16 16:49:50 FTP_Server: daemon is stopped
Mar 16 16:49:50 Samba_Server: smb daemon is stopped
Mar 16 16:49:50 kernel: gro disabled
Mar 16 16:49:50 mountd[23866]: Caught signal 15, un-registering and exiting.
Mar 16 16:49:50 statd[23860]: Caught signal 15, un-registering and exiting.
Mar 16 16:49:50 kernel: nfsd: last server has exited, flushing export cache
Mar 16 16:49:50 Timemachine: daemon is stopped
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Has anyone any ideea why this error occurs and how can I fix it?

 

[skeal]

Remove usb device and scan on a computer if the computer cannot mount with read/write then the drive is screwed probably.

 

[john9527]

Has anyone any ideea why this error occurs and how can I fix it?

How are formatting/partitioning the drives? USB sticks often contain hidden/non-standard partitions that will work under windows but cause problems under linux. For me, windows utilities that claim to support formatting to ext are also always suspect.

I always use a GPARTED boot USB and delete all existing partitions, then set things up the way I want.

 

[ionutz4u]

Remove usb device and scan on a computer if the computer cannot mount with read/write then the drive is screwed probably.

Tnx for the sugestion, skeal. I did that, usb flash is ok, get`s mounted in windows, but needs formated FAT32/NTFS. Scanned, has no errors.

 

[ionutz4u]

How are formatting/partitioning the drives? USB sticks often contain hidden/non-standard partitions that will work under windows but cause problems under linux. For me, windows utilities that claim to support formatting to ext are also always suspect.

I always use a GPARTED boot USB and delete all existing partitions, then set things up the way I want.

USB flash drive has one partition formated ext2. There are no other partition or unalocated space on it. I have tried ext3 also, but i encountered same problem.
Beside that, as you can see in that log, the USB flash worked without issues for 5-6 days. It has to be something else that causes this problem.

 

[skeal]

Tnx for the sugestion, skeal. I did that, usb flash is ok, get`s mounted in windows, but needs formated FAT32/NTFS. Scanned, has no errors.

You should follow the above advice from @john9527

 

[skeal]

Don't use a windows program or windows itself to format your drive for EXT file system. You should have a linux/virtual machine to do some of the tasks on this forum IMHO. They are easy to setup. Or run a version of Ubuntu from a usb drive or dvd that works real nice too.