A USB memory stick has been plugged into a USB 3 port for quite a few days. The stick was left there after it was discovered that the kernel does not recognise it (e.g. fdisk - l does not show the stick).
It was decided to unplug the stick. Subsequently the command
cat /var/log/messages was run and the messages revealed that just before the stick was unplugged, the kernel suddenly found the stick and automatically mounted it to /media/usb0. While the stick was being unplugged, the system performed a 'lazy' unmount from /media/usb0.
The stick was later plugged back into the USB 3 port and the dmesg command issued. The dmesg messages revealed that the stick was probably corrupted due to the lazy unmount.
My question is :-
Why did the kernel suddenly find the stick and automatically mount it just before the stick was unplugged ?