Stale mount on disconnected device: how to delete it?

[Atom Smasher]

On Tue, 18 Dec 2007, soralx at cydem.org wrote:

> Unfortunately, they do happen fairly often, usually caused by 
> USB-related stuff (FreeBSD's USB stack is _the_ worst I've seen lately 
> -- I take it that the stack's favorite hobby is panicking the kernel 
> with unrivaled efficiency), sometimes by ATA/ATAPI/SATA (interestingly, 
> SCSI code is quite stable), someimes by something obscure (e.g., just 
> exiting qbittorrent kills the kernel -- NFS woes maybe? just an 
> example). Hot-swapping with some ATA and SCSI drivers is impossible, too 
> (result in panics).
==================

apparently i'm not the only one who had to disable EHCI in order to get 
ACPI working on a laptop. i'm not a kernel hacker, but how those two are 
related isn't obvious to me.

OHCI works fine, usually ;)


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