From: Robert Love <rml@tech9.net>
To: James Simmons <jsimmons@infradead.org>
Cc: Gerhard Mack <gmack@innerfire.net>, linux-kernel@vger.kernel.org
Subject: Re: Linux 2.5.71 - random console corruption
Date: 16 Jun 2003 16:40:28 -0700 [thread overview]
Message-ID: <1055806828.7069.176.camel@localhost> (raw)
In-Reply-To: <Pine.LNX.4.44.0306170032070.26878-100000@phoenix.infradead.org>
On Mon, 2003-06-16 at 16:34, James Simmons wrote:
> For userland<->kernel transactions we have the console_semaphore to
> protect us. It is also used for console_callback. The console_semaphore is
> not used internally to protect global variables :-( To do this properly
> would take quite a bit of work.
It looks like all these globals need a lock -- they can race on SMP or
with kernel preemption.
Is it really going to be that hard to wrap a lock around their access,
because I think this is going to bite SMP users.
Robert Love
next prev parent reply other threads:[~2003-06-16 23:26 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-06-15 0:59 Linux 2.5.71 - random console corruption Gerhard Mack
2003-06-16 21:27 ` James Simmons
2003-06-16 21:31 ` Robert Love
2003-06-16 23:34 ` James Simmons
2003-06-16 23:40 ` Robert Love [this message]
2003-06-17 20:50 ` James Simmons
2003-06-18 1:50 ` Gerhard Mack
2003-06-18 11:56 ` Grzegorz Jaskiewicz
2003-06-18 16:38 ` James Simmons
2003-06-18 16:20 ` Grzegorz Jaskiewicz
2003-06-18 20:28 ` James Simmons
2003-06-18 20:08 ` Grzegorz Jaskiewicz
2003-06-18 16:55 ` Gerhard Mack
2003-06-19 20:43 ` Bill Davidsen
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