From: Andreas Schwab <schwab@linux-m68k.org>
To: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Paul Mackerras <paulus@samba.org>,
linuxppc-dev@lists.ozlabs.org,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: Regression in 32-bit ppc kernel
Date: Sat, 28 Apr 2012 20:23:15 +0200 [thread overview]
Message-ID: <m2y5pflnqk.fsf@igel.home> (raw)
In-Reply-To: <4F9C3252.7020508@lwfinger.net> (Larry Finger's message of "Sat, 28 Apr 2012 13:09:22 -0500")
Larry Finger <Larry.Finger@lwfinger.net> writes:
> I have done a little more debugging. The problem is definitely coming from
> drivers/tty/serial/pmac_zilog.c. I am getting ChanB interrupts while open,
> which causes the following code segment to return IRQ_NONE:
>
> if (r3 & (CHBEXT | CHBTxIP | CHBRxIP)) {
> if (!ZS_IS_OPEN(uap_a)) {
s/uap_a/uap_b/?
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
WARNING: multiple messages have this Message-ID (diff)
From: Andreas Schwab <schwab@linux-m68k.org>
To: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
linuxppc-dev@lists.ozlabs.org,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: Regression in 32-bit ppc kernel
Date: Sat, 28 Apr 2012 20:23:15 +0200 [thread overview]
Message-ID: <m2y5pflnqk.fsf@igel.home> (raw)
In-Reply-To: <4F9C3252.7020508@lwfinger.net> (Larry Finger's message of "Sat, 28 Apr 2012 13:09:22 -0500")
Larry Finger <Larry.Finger@lwfinger.net> writes:
> I have done a little more debugging. The problem is definitely coming from
> drivers/tty/serial/pmac_zilog.c. I am getting ChanB interrupts while open,
> which causes the following code segment to return IRQ_NONE:
>
> if (r3 & (CHBEXT | CHBTxIP | CHBRxIP)) {
> if (!ZS_IS_OPEN(uap_a)) {
s/uap_a/uap_b/?
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
next prev parent reply other threads:[~2012-04-28 18:23 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-24 22:58 Regression in 32-bit ppc kernel Larry Finger
2012-04-24 23:53 ` Benjamin Herrenschmidt
2012-04-24 23:53 ` Benjamin Herrenschmidt
2012-04-25 2:37 ` Larry Finger
2012-04-25 2:37 ` Larry Finger
2012-04-25 4:11 ` Benjamin Herrenschmidt
2012-04-25 4:11 ` Benjamin Herrenschmidt
2012-04-25 15:00 ` Larry Finger
2012-04-25 15:00 ` Larry Finger
2012-04-25 21:44 ` Benjamin Herrenschmidt
2012-04-25 21:44 ` Benjamin Herrenschmidt
2012-04-27 15:38 ` Larry Finger
2012-04-27 15:38 ` Larry Finger
2012-04-27 22:26 ` Benjamin Herrenschmidt
2012-04-27 22:26 ` Benjamin Herrenschmidt
2012-04-28 0:02 ` Larry Finger
2012-04-28 0:02 ` Larry Finger
2012-04-28 0:42 ` Benjamin Herrenschmidt
2012-04-28 0:42 ` Benjamin Herrenschmidt
2012-04-28 18:09 ` Larry Finger
2012-04-28 18:09 ` Larry Finger
2012-04-28 18:23 ` Andreas Schwab [this message]
2012-04-28 18:23 ` Andreas Schwab
2012-04-28 22:48 ` Benjamin Herrenschmidt
2012-04-28 22:48 ` Benjamin Herrenschmidt
2012-04-28 23:17 ` Larry Finger
2012-04-28 23:17 ` Larry Finger
2012-04-28 23:23 ` Benjamin Herrenschmidt
2012-04-28 23:23 ` Benjamin Herrenschmidt
2012-04-28 23:30 ` Larry Finger
2012-04-28 23:30 ` Larry Finger
2012-04-28 22:41 ` Benjamin Herrenschmidt
2012-04-28 22:41 ` Benjamin Herrenschmidt
2012-04-28 22:42 ` Benjamin Herrenschmidt
2012-04-28 22:42 ` Benjamin Herrenschmidt
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