On Mon, 5 Dec 2005, Nicolas Macquet wrote:

> My application managed to launch multiple jobs on USB disks (thanks to
> XMLHttpRequest objects). Everything work well if there are not any hardware
> failure (USB disk full or other...). But it's getting harder when handling
> errors.
> One can plug up to 16 usb disks at once. these disks are dispatched on 4
> 4-ports USB HUBs (brands are not relevant, they work very well).
> 
> My problem is :
>       When doing multiple simultaneous jobs on disks (formating, 
> copying...)and
> unplugging one disk while doing these jobs : my server is completly unable
> to handle I/O errors. Some disks continues their jobs as if it was no error,
> but most of them are blocked. In fact, format or copy processes are Dead,
> they run in loop and do not respond to a kill command. The server goes in a
> dead-lock and even all reboot/shutdown commands do not complete because
> filesystem is busy. Need to shutdown the server by the button.

Have you tried using 2.6.14?  Some bugs were fixed since 2.6.10 that 
should help with error handling and recovery.

Alan Stern



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