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Date:      Wed, 22 Jan 2003 14:40:28 +0100
From:      phk@freebsd.org
To:        Joerg Wunsch <joerg_wunsch@uriah.heep.sax.de>
Cc:        ticso@cicely.de, freebsd-current@freebsd.org
Subject:   Re: I want a sysctl kern.allow_shooting_into_my_foot! 
Message-ID:  <25634.1043242828@critter.freebsd.dk>
In-Reply-To: Your message of "Wed, 22 Jan 2003 13:53:20 %2B0100." <20030122135320.A70341@uriah.heep.sax.de> 

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In message <20030122135320.A70341@uriah.heep.sax.de>, Joerg Wunsch writes:

>Here's the result.  What does it mean to me?  (debug flag set from
>DDB, and turned off in single-user again.)

Here's the bug:

	g_dev_open(da1a, 3, 0, 0)

da1a opened (FREAD|FWRITE)

	g_access_rel(0xc1178a40(da1a), 1, 1, 0)
	open delta:[r1w1e0] old:[r0w0e0] provider:[r0w0e0] 0xc11d4f00(da1a)
	g_post_event(2, 0, 0, 0xc11d4f00, 0xc1178a40)
	g_access_rel(0xc1178f40(da1), 1, 1, 1)
	open delta:[r1w1e1] old:[r0w0e0] provider:[r0w0e0] 0xc1194d00(da1)
	g_post_event(2, 0, 0, 0xc1194d00, 0xc1178f40)
	g_disk_access(da1, 1, 1, 1)
	g_do_event(0xc1178780) 2 m:0 g:0 p:0xc11d4f00 c:0xc1178a40 - 
	EV_SPOILED(0xc11d4f00(da1a),0xc1178a40)
	g_do_event(0xc1178740) 2 m:0 g:0 p:0xc1194d00 c:0xc1178f40 - 
	EV_SPOILED(0xc1194d00(da1),0xc1178f40)
	spoiling 0xc1178e40 (da1) (0)
	g_dev_close(da1a, 0, 0, 0)

da1a closed but without FREAD|FWRITE, which turns the close into a no-op.

-- 
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