Fatal trap 12 if you unmount detached umass device

Björn König bkoenig at cs.tu-berlin.de
Mon Jul 4 17:26:12 GMT 2005


Andre Guibert de Bruet wrote:

> 1. Don't do that

It concerns not only USB drives, but any kind of removable media, even 
floppy disks. A lot of people tend to remove floppy disks without 
unmounting the filesystem before and I think it's unacceptable to let 
users reboot their machine if they did this mistake.

> (If you're going to do it, try umount -f).

... which causes the death of a machine if you do this twice.


I prepared myself to step into the source code next month to eliminate 
this annoying behaviour.

Regards
Björn


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