Andriy Gapon wrote:
on 18/07/2007 20:34 Mark Linimon said the following:
On Wed, Jul 18, 2007 at 10:05:59AM -0700, Jeremy Chadwick wrote:
Bottom line here is that the kernel panics when removing a USB device
that has filesystems mounted.
s/USB //
I also have a hard time believing that the reason it hasn't been fixed
is because "there isn't an easy fix". I'm under the impression it
hasn't been fixed because either no one cares enough to fix it (using
the workaround as a scapegoat excuse), or because the majority of people
do not use USB-based storage devices.
The reason is not the USB stack; the reason (IIRC) is that the FreeBSD
VM was written with the default assumption that Devices Never Go Away.
A large rewrite, I'm told, will be needed to fix this, and the code is
convoluted and tricky.
No one finds the situation acceptable; introducing the "scapegoat" word
isn't going to win you any support. The problem is not a weekend's worth
of work to fix, nor does it have anything to do with avoidance by one
particular maintainer, which you apparently had encountered before.
Well, here's my two kopiykas.
Apparently there is somebody who tried to fix this problem, but for some
reason (most probably language barrier) his attempt is largely unnoticed
so far.
Here is a link to a posting to freebsd-fs:
http://lists.freebsd.org/pipermail/freebsd-fs/2007-June/003370.html
The language barrier won't help, especially since there is no English
discussion about how the patch works.
FreeBSD VFS comitters are rare, ones that understand Russian are
probably almost non-existent :)
Also it would be nice if the patch was a unified diff rather than
x-patch as that makes it much easier to review.
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