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mathbike

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Micro sd card keeps disconnecting

I'm using a micro sd card on my laptop to backup my git repos.  I have it configured to push to this drive and github on push. I have a script that decrypts and mounts it to /mnt/backup on startup.  I set it up a few weeks ago, it seemed to be working properly at first, but now it's started disconnecting all the time. At first it's sdb1 but after it's disconnected lsblk shows it as sdc1 and no longer mounted. How do I diagnose this problem? What am I looking for?

[Tue Jul 11 03:14:20 2023] EXT4-fs (dm-1): unmounting filesystem b8b3b369-c412-4e5a-a94d-60a51f1c07c4.
[Tue Jul 11 03:14:20 2023] Buffer I/O error on dev dm-1, logical block 0, lost sync page write
[Tue Jul 11 03:14:20 2023] EXT4-fs (dm-1): I/O error while writing superblock
[Tue Jul 11 03:14:20 2023] dm-1: detected capacity change from 499707904 to 0
[Tue Jul 11 03:14:27 2023] usb 1-4: USB disconnect, device number 7
[Tue Jul 11 03:14:28 2023] usb 1-4: new high-speed USB device number 8 using xhci_hcd
[Tue Jul 11 03:14:28 2023] usb 1-4: New USB device found, idVendor=058f, idProduct=6366, bcdDevice= 1.00
[Tue Jul 11 03:14:28 2023] usb 1-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[Tue Jul 11 03:14:28 2023] usb 1-4: Product: Flash Card Reader/Writer
[Tue Jul 11 03:14:28 2023] usb 1-4: Manufacturer: Generic
[Tue Jul 11 03:14:28 2023] usb 1-4: SerialNumber: 058F63666485
[Tue Jul 11 03:14:28 2023] usb-storage 1-4:1.0: USB Mass Storage device detected
[Tue Jul 11 03:14:28 2023] scsi host3: usb-storage 1-4:1.0
[Tue Jul 11 03:14:28 2023] usb 1-4: USB disconnect, device number 8
[Tue Jul 11 03:14:31 2023] usb 1-4: new high-speed USB device number 9 using xhci_hcd
[Tue Jul 11 03:14:31 2023] usb 1-4: New USB device found, idVendor=058f, idProduct=6366, bcdDevice= 1.00
[Tue Jul 11 03:14:31 2023] usb 1-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[Tue Jul 11 03:14:31 2023] usb 1-4: Product: Flash Card Reader/Writer
[Tue Jul 11 03:14:31 2023] usb 1-4: Manufacturer: Generic
[Tue Jul 11 03:14:31 2023] usb 1-4: SerialNumber: 058F63666485
[Tue Jul 11 03:14:31 2023] usb-storage 1-4:1.0: USB Mass Storage device detected
[Tue Jul 11 03:14:31 2023] scsi host3: usb-storage 1-4:1.0
[Tue Jul 11 03:14:32 2023] scsi 3:0:0:0: Direct-Access     Multiple Card  Reader     1.00 PQ: 0 ANSI: 4
[Tue Jul 11 03:14:33 2023] sd 3:0:0:0: [sdb] 499744768 512-byte logical blocks: (256 GB/238 GiB)
[Tue Jul 11 03:14:33 2023] sd 3:0:0:0: [sdb] Write Protect is off
[Tue Jul 11 03:14:33 2023] sd 3:0:0:0: [sdb] Mode Sense: 23 00 00 00
[Tue Jul 11 03:14:33 2023] sd 3:0:0:0: [sdb] Write cache: disabled, read cache: disabled, doesn't support DPO or FUA
[Tue Jul 11 03:14:33 2023]  sdb: sdb1
[Tue Jul 11 03:14:33 2023] sd 3:0:0:0: [sdb] Attached SCSI removable disk
[Tue Jul 11 03:14:48 2023] EXT4-fs (dm-1): recovery complete
[Tue Jul 11 03:14:48 2023] EXT4-fs (dm-1): mounted filesystem b8b3b369-c412-4e5a-a94d-60a51f1c07c4 r/w with ordered data mode. Quota mode: none.
[Tue Jul 11 03:36:36 2023] usb 1-4: USB disconnect, device number 9
[Tue Jul 11 03:36:37 2023] usb 1-4: new high-speed USB device number 10 using xhci_hcd
[Tue Jul 11 03:36:38 2023] usb 1-4: New USB device found, idVendor=058f, idProduct=6366, bcdDevice= 1.00
[Tue Jul 11 03:36:38 2023] usb 1-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[Tue Jul 11 03:36:38 2023] usb 1-4: Product: Flash Card Reader/Writer
[Tue Jul 11 03:36:38 2023] usb 1-4: Manufacturer: Generic
[Tue Jul 11 03:36:38 2023] usb 1-4: SerialNumber: 058F63666485
[Tue Jul 11 03:36:38 2023] usb-storage 1-4:1.0: USB Mass Storage device detected
[Tue Jul 11 03:36:38 2023] scsi host4: usb-storage 1-4:1.0
[Tue Jul 11 03:36:39 2023] scsi 4:0:0:0: Direct-Access     Multiple Card  Reader     1.00 PQ: 0 ANSI: 4
[Tue Jul 11 03:36:39 2023] sd 4:0:0:0: [sdc] 499744768 512-byte logical blocks: (256 GB/238 GiB)
[Tue Jul 11 03:36:39 2023] sd 4:0:0:0: [sdc] Write Protect is off
[Tue Jul 11 03:36:39 2023] sd 4:0:0:0: [sdc] Mode Sense: 23 00 00 00
[Tue Jul 11 03:36:39 2023] sd 4:0:0:0: [sdc] Write cache: disabled, read cache: disabled, doesn't support DPO or FUA
[Tue Jul 11 03:36:39 2023]  sdc: sdc1
[Tue Jul 11 03:36:39 2023] sd 4:0:0:0: [sdc] Attached SCSI removable disk
[Tue Jul 11 03:38:34 2023] EXT4-fs error (device dm-1): __ext4_find_entry:1678: inode #1048712: comm git: reading directory lblock 0
[Tue Jul 11 03:38:34 2023] EXT4-fs error (device dm-1): __ext4_find_entry:1678: inode #1048712: comm git-receive-pac: reading directory lblock 0
[Tue Jul 11 03:38:34 2023] EXT4-fs error (device dm-1): __ext4_find_entry:1678: inode #1048712: comm git-receive-pac: reading directory lblock 0
[Tue Jul 11 03:38:40 2023] Buffer I/O error on dev dm-1, logical block 30965799, lost sync page write
[Tue Jul 11 03:38:40 2023] Aborting journal on device dm-1-8.
[Tue Jul 11 03:38:40 2023] Buffer I/O error on dev dm-1, logical block 30965760, lost sync page write
[Tue Jul 11 03:38:40 2023] JBD2: I/O error when updating journal superblock for dm-1-8.

Last edited by mathbike (2023-07-11 06:57:20)

ua4000

Member

Registered: 2015-10-14

Posts: 558

Re: Micro sd card keeps disconnecting

This looks like a hardware fault, laptop usb <> card reader usb.
Try another usb port, try another usb cable.

Another idea is to rule out USB autosuspend,
https://wiki.archlinux.org/title/Power_ … utosuspend

mathbike

Guest

Re: Micro sd card keeps disconnecting

Thanks for the response, that link you posted was very useful.  It's the built in sd card reader of the laptop so I can't try another usb port/cable.  But I'm working on ruling out usb autosuspend right now and learning more about the kernel.