NetBSD Problem Report #45215

From yamt@NetBSD.org  Fri Aug  5 00:34:14 2011
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Date: Fri,  5 Aug 2011 00:34:14 +0000 (UTC)
From: yamt@NetBSD.org
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To: gnats-bugs@NetBSD.org
Subject: physio/directio doesn't dirty pages
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>Number:         45215
>Category:       kern
>Synopsis:       physio/directio doesn't dirty pages
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Aug 05 00:35:00 +0000 2011
>Originator:     YAMAMOTO Takashi
>Release:        NetBSD current
>Organization:

>Environment:
>Description:
	physio/directio doesn't dirty the userland buffer pages.
	if pages are cleaned by other thread immediately after our thread
	uvm_vslock pages, the modification can be lost.
>How-To-Repeat:
>Fix:


>Unformatted:

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