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Date:   Wed, 6 Dec 2017 22:33:26 +0100
From:   SF Markus Elfring <>
To:     Alan Stern <>,
Cc:     Joe Perches <>, Daniel Drake <>,
        Dmitry Fleytman <>,
        Eugene Korenevsky <>,
        Geert Uytterhoeven <>,
        Greg Kroah-Hartman <>,
        Günter Röck <>,
        Johan Hovold <>,
        Mathias Nyman <>,
        Peter Chen <>,
        LKML <>,
Subject: Re: USB: hub: Delete an error message for a failed memory allocation
 in usb_hub_clear_tt_buffer()

>>> Does the existing memory allocation error message include the 
>>> &udev->dev device name and driver name?  If it doesn't, there will be 
>>> no way for the user to tell that the error message is related to the 
>>> device failure.
>> No, but the effect is similar.
>> OOM does a dump_stack() so this function's call tree is shown.
> A call stack doesn't tell you which device was being handled.

Do you find a default Linux allocation failure report insufficient then?

Would you like to to achieve that the requested information can be determined
from a backtrace?


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