Am Sonntag, 2. Juni 2002 19:16 schrieb David Brownell:
> >>>>The problem is that this cannot simply work, because a filesystem
> >>>> may be mounted by nfs.
>
> If the goal is to boot a diskless Linux box (who supports those?)
> using a USB networking device that needs firmware download before
> it can be used ... that'd be _exactly_ analagous to needing to
> boot from a disk controller that needs firmware downloaded before
> it will work. In both cases, if the boot ROM doesn't download it,
> then the system won't boot.
Hi,
getting the firmware is not the problem, but getting the firmware
to the device can deadlock if you cause writing to the device
by allocating memory for the downloading.
Any memory allocation from user space can case writing to any
filesystem with dirty pages in cache.
Regards
Oliver
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