From: "Mark McClelland" <[EMAIL PROTECTED]>
>
> I looks like the problem you are seeing is the same one people are
> having with OV511 cameras on OHCI. They used to work with 2.4.3, and in
> 2.4.4 they either crash the kernel or produce corrupted images. The
> camera initialization, however, works fine.
Crash the kernel? That symptom I hadn't heard. Details?
> According to one user, it worked in 2.4.4-pre3 and broke in 2.4.4-pre7.
> It appears that isochronous packets are being dropped, possibly when the
> IRQ load gets too heavy, or when too much time is spent in the handler.
Suggesting it's related to the portability work in that driver. Please verify
that the iso problem shows up with the ohci-0520.patch I just posted; there's
a change there that might explain some crashes. I suspect it won't affect the
iso problem, but that needs to be checked.
> Not to jump to conclusions, but I wonder if the AMD 756 patch is what
> caused this?
IMO unlikely. Right now that quirk code only kicks in for the amd756,
yet you're saying this bug shows up on other ohci controllers.
The only AMD-756-related quirk in this report is a broken build,
which is unlikely to be usb-specific or to only break USB things.
- Dave
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