From: "David S. Miller" <davem@redhat.com>
To: manfred@colorfullife.com
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] improve spinlock debugging
Date: Mon, 03 Dec 2001 20:21:30 -0800 (PST) [thread overview]
Message-ID: <20011203.202130.118628301.davem@redhat.com> (raw)
In-Reply-To: <3C0BDC33.6E18C815@colorfullife.com>
In-Reply-To: <3C0BDC33.6E18C815@colorfullife.com>
From: Manfred Spraul <manfred@colorfullife.com>
Date: Mon, 03 Dec 2001 21:10:27 +0100
Which other runtime checks are possible?
Tests for correct _irq usage are not possible, several drivers use
disable_irq().
Keep track of how many locks are being held at once, and check if it
is zero at switch_to() time. You can also do this to measure things
like max number of locks held at once and other statistics.
I added the first bit to sparc64 while hunting down a bug.
next prev parent reply other threads:[~2001-12-04 4:21 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-12-03 20:10 [PATCH] improve spinlock debugging Manfred Spraul
2001-12-04 4:21 ` David S. Miller [this message]
2001-12-04 4:30 ` Robert Love
2001-12-04 20:30 ` george anzinger
2001-12-04 20:51 ` Robert Love
2001-12-04 21:25 ` george anzinger
2001-12-04 21:39 ` Robert Love
2001-12-04 22:06 ` Nigel Gamble
2001-12-04 22:23 ` Robert Love
2001-12-05 1:13 ` Roman Zippel
2001-12-05 7:41 ` george anzinger
2001-12-04 20:53 ` Manfred Spraul
2001-12-05 0:54 ` george anzinger
2001-12-04 21:20 ` Nigel Gamble
2001-12-04 21:27 ` george anzinger
2001-12-05 8:47 ` Giuliano Pochini
2001-12-05 15:42 ` Manfred Spraul
[not found] ` <20011219025332.GA18344@krispykreme>
2001-12-20 17:08 ` Manfred Spraul
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