Re: Yanking a USB Hard Drive/ReiserFS causes Kernel Panic
On Thu, Oct 28, 2004 at 09:12:40PM -0500, Ron Johnson wrote:
> Floppy disk, CD-Rs & flash drives are a big step down from a multi-
> dozen GB-sized HDD.
He's testing it on HDs, but getting a lot of feedback about how fat and
ReiserFs don't support sync, and if they did support sync it would be
slow as the dickens. There is a suggestion to use a "fastusb <command>"
option which would transparently remount as async for the duration of a
command, and remount sync when done [1]. As long as you don't yank
during an async op, you shouldn't expect data loss.
Pretty fascinating project -- just started 2 days ago. Look at the
"usbmount" thread on debian-mentors@l.d.o.
[1] Pretty sure XPSP2 does somethin like this, async/sync hybrid with
more aggressive flushes, when things "settle down." You used to have to
manually stop a mass storage device, bad things would happen if you
didn't, but that's less true now.
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