Issues with pen drives

Xwang · 2014-12-09 19:32:18

I've noted a strange behaviour on my 64 bit Arch system with KDE.
When I connect any USB drive, it appears in the desktop applet and I can mount it and use it with no problem.
Then when I disconnect it, it disappears from the applet and the /dev/sdb1 file is deleted too so to use it again I have to physically disconnect and reconnect it again.
This happens either with FAT32 and exfat devices.
In the latter cases error like this one appears when I unmount the device (which is mounted automatically as a fuseblk):
[ 693.282056] Buffer I/O error on device sdb1, logical block 122
This error is not related with a device problem because I've the same one (with a different logical block number) with different exfats pen drives.
Is it something not correctly configured on my pc?
Is it a bug?
Thank you,
Xwang

drcouzelis · 2014-12-09 19:43:46

Are you saying that, after you unmount a flash drive, you can no longer mount it until you physically remove it from your computer and re-insert it?

I thought that was normal...

Xwang · 2014-12-09 19:46:37

No, it seems a KDe bug:
https://bugs.kde.org/show_bug.cgi?id=293906
I suppose they are working on it.
What I do not know now is the "Buffer I/O error on device sdb1, logical block xxx" error when unmounting exfat devices.

jasonwryan · 2014-12-09 19:47:56

drcouzelis wrote:

Are you saying that, after you unmount a flash drive, you can no longer mount it until you physically remove it from your computer and re-insert it?
I thought that was normal...

Agreed. I don't know how KDE works, but this sounds like expected behaviour.

KDE bugtracker wrote:

*** This bug has been confirmed by popular vote. ***

Oh dear...

WorMzy · 2014-12-09 20:06:02

I can't reproduce this outside of KDE..

$ lsblk -f /dev/sdh
NAME   FSTYPE LABEL    UUID                                 MOUNTPOINT
sdh                                                         
├─sdh1 vfat   USB-Data 6077-AA1C                            
└─sdh2 ext4   Arch-USB 084f2f7f-246a-4798-8b4f-7a0f85907e86

$ udisks --mount /dev/sdh1
Mounted /org/freedesktop/UDisks/devices/sdh1 at /media/USB-Data

$ udisks --unmount /dev/sdh1

$ lsblk -f /dev/sdh
NAME   FSTYPE LABEL    UUID                                 MOUNTPOINT
sdh                                                         
├─sdh1 vfat   USB-Data 6077-AA1C                            
└─sdh2 ext4   Arch-USB 084f2f7f-246a-4798-8b4f-7a0f85907e86

$ udisks --mount /dev/sdh1
Mounted /org/freedesktop/UDisks/devices/sdh1 at /media/USB-Data

I don't think disappearing device nodes can be anything but a bug.

Arch Linux

#1 2014-12-09 19:32:18

Issues with pen drives

#2 2014-12-09 19:43:46

Re: Issues with pen drives

#3 2014-12-09 19:46:37

Re: Issues with pen drives

#4 2014-12-09 19:47:56

Re: Issues with pen drives

#5 2014-12-09 20:06:02

Re: Issues with pen drives

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