From: "David S. Miller" <davem@redhat.com>
To: Dmitry Torokhov <dtor_core@ameritech.net>
Cc: linux-kernel@vger.kernel.org, vojtech@suze.cz
Subject: Re: Why pass pt_regs throughout the input system?
Date: Wed, 12 May 2004 12:10:13 -0700 [thread overview]
Message-ID: <20040512121013.0b5f3d63.davem@redhat.com> (raw)
In-Reply-To: <20040512185026.28373.qmail@web80508.mail.yahoo.com>
On Wed, 12 May 2004 11:50:26 -0700 (PDT)
Dmitry Torokhov <dtor_core@ameritech.net> wrote:
> As far as multiple keyboards issue going - SysRq is a debug tool and
> I relly do not see you hitting SysRq on the two keyboards at the very
> same time to mess up the call traces.
Maybe to get two backtraces on two different cpus?
Be creative :-)
> Anyway, my "problem" is the following: SysRq register dump and call
> trace require keyboard.c event handler to be caled from hard interrupt
> context which is not always feasible.
USB handles this fine, and I seem to remember it does use tasklets.
You can save the pt_regs value at hardware interrupt and pass that
in during the tasklet run perhaps?
next prev parent reply other threads:[~2004-05-12 19:24 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-12 18:50 Dmitry Torokhov
2004-05-12 19:10 ` David S. Miller [this message]
-- strict thread matches above, loose matches on Subject: below --
2004-05-12 20:01 Dmitry Torokhov
2004-05-12 4:04 Dmitry Torokhov
2004-05-12 8:40 ` Vojtech Pavlik
2004-05-12 18:15 ` David S. Miller
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