USB memory stick hotswap problems

Ivan Voras ivoras at
Mon Sep 27 04:26:46 PDT 2004

Daniel O'Connor wrote:
> One possibility would be to add a facility to mark all the data for a certain 
> device to be non-critical so it will throw it away when it tries to flush it 
> and fails instead of panicing.

That (and a message in syslog) would be just fine. ("Windows does it, so 
it's normal".) I know (and I think other USB drive users know too) that 
I need to wait for the little LED on the device to stop blinking before 
unplugging it.

IIRC, Windows mounts removable drives with write caching disabled, so it 
should probably be the same in FreeBSD.

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