Re: [linux-usb-devel] OOM and USB, latest Linux 2.6

From: Alan Stern
Date: Sat Feb 17 2007 - 16:37:06 EST

On Sat, 17 Feb 2007, Dan Aloni wrote:

> You are right, I looked over this state with kdb, and usb-storage
> waited in usb_stor_bulk_transfer_sg, which does pass GFP_NOIO
> at this scenario.

> BTW, soft-rebooting the machine in that state made the USB
> storage device (LEXAR, JD LIGHTNING II) inaccessible to the
> BIOS. I had to do a complete power cycle in order or the BIOS
> to see it again.

That's the fault of the BIOS and/or the Lexar device. The BIOS ought to
do a complete reset of the USB controller and a reset of the device. If
the device remains unusable after that, there isn't anything we can do
about it.

Alan Stern

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