Linux Mint 18.2, MATE.
Cancelling of file operations via Caja takes a lot of time. For example, I was copying 20 files to the USB drive (11,5 GB on a whole) and then canceled it; it's been more than a hour, but the file operation hasn't been canceled and its windows hasn't been closed.
What can be wrong with it?
UPD: The operation hadn't been canceled so I had to reboot. After rebooting I can't open a mounted USB drive because of "Input/Output error".
dmesg information from plugging the USB drive till cancelling the operation. There were no new messages during cancelling though.
[ 706.567270] usb 1-1.2: new high-speed USB device number 5 using ehci-pci [ 706.680148] usb 1-1.2: New USB device found, idVendor=abcd, idProduct=1234 [ 706.680150] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 706.680152] usb 1-1.2: Product: 1 [ 706.680153] usb 1-1.2: Manufacturer: 1 [ 706.680154] usb 1-1.2: SerialNumber: Љ [ 706.680468] usb-storage 1-1.2:1.0: USB Mass Storage device detected [ 706.680578] scsi host5: usb-storage 1-1.2:1.0 [ 707.699900] scsi 5:0:0:0: Direct-Access General UDisk 5.00 PQ: 0 ANSI: 2 [ 707.700499] sd 5:0:0:0: Attached scsi generic sg2 type 0 [ 707.700872] sd 5:0:0:0: [sdb] 31334400 512-byte logical blocks: (16.0 GB/14.9 GiB) [ 707.701499] sd 5:0:0:0: [sdb] Write Protect is off [ 707.701502] sd 5:0:0:0: [sdb] Mode Sense: 0b 00 00 08 [ 707.702118] sd 5:0:0:0: [sdb] No Caching mode page found [ 707.702123] sd 5:0:0:0: [sdb] Assuming drive cache: write through [ 707.706241] sdb: sdb1 [ 707.709381] sd 5:0:0:0: [sdb] Attached SCSI removable disk [ 707.958644] FAT-fs (sdb1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.