Thread (71 messages) 71 messages, 8 authors, 2011-09-21

Re: [patch v3 30/36] Hexagon: Add page-fault support.

From: Richard Kuo <hidden>
Date: 2011-09-13 01:34:34
Also in: lkml

On Sun, Sep 11, 2011 at 12:08:49PM -0300, Benjamin Herrenschmidt wrote:
Are you sure about enabling interrupts before going to "no_context" ?

If somebody does a user access "in atomic" with interrupt disabled (with
the expectation that a fault would be caught by search_exception_tables
and returned as -EFAULT), such code probably doesn't expect interrupts
to be re-enabled implicitely.
I hadn't considered that...  I'll review this and make sure this isn't what
we intended (it probably isn't) and get it fixed.


Thanks,
Richard Kuo


-- 

Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.
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