linux-kernel - RE: [ANNOUNCE] 3.0-rt4

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 28 Jul 2011 13:36:55 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	"N, Mugunthan V" <mugunthanvnm@...com>
cc:	LKML <linux-kernel@...r.kernel.org>,
	linux-rt-users <linux-rt-users@...r.kernel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Jason Wessel <jason.wessel@...driver.com>
Subject: RE: [ANNOUNCE] 3.0-rt4

On Thu, 28 Jul 2011, N, Mugunthan V wrote:

> Hi RT Folks
> 
> I am testing 3.0-rt3 on AM3517 - Arm Cortex A8. As the kernel from the
> mainline is not booting I am using a patch to boot AM3517 kernel on top of
> the mainline kernel. I am getting a warning as below.
> 
> The same issue when I reported for rt3, Thomas has suggested a patch 
> that is already integrated in rt4, even then I am getting the same 
> warning.

That's a different warning as the one which was addressed by the
patch.

> Attaching the patch and the rt-config file.

Please do not send this stuff over and over.
 
Fix for the serial issue below.

Thanks,

	tglx

---
 drivers/tty/serial/omap-serial.c |    8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

Index: linux-2.6/drivers/tty/serial/omap-serial.c
===================================================================
--- linux-2.6.orig/drivers/tty/serial/omap-serial.c
+++ linux-2.6/drivers/tty/serial/omap-serial.c
@@ -947,13 +947,12 @@ serial_omap_console_write(struct console
 	unsigned int ier;
 	int locked = 1;
 
-	local_irq_save(flags);
 	if (up->port.sysrq)
 		locked = 0;
 	else if (oops_in_progress)
-		locked = spin_trylock(&up->port.lock);
+		locked = spin_trylock_irqsave(&up->port.lock, flags);
 	else
-		spin_lock(&up->port.lock);
+		spin_lock_irqsave(&up->port.lock, flags);
 
 	/*
 	 * First save the IER then disable the interrupts
@@ -980,8 +979,7 @@ serial_omap_console_write(struct console
 		check_modem_status(up);
 
 	if (locked)
-		spin_unlock(&up->port.lock);
-	local_irq_restore(flags);
+		spin_unlock_irqrestore(&up->port.lock, flags);
 }
 
 static int __init
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/