From: Wolfram Sang <wsa@the-dreams.de>
To: linux-arm-kernel@lists.infradead.org
Subject: Re: Possible regression due to "tick: broadcast: Prevent livelock from event handler"
Date: Fri, 03 Jul 2015 11:41:29 +0000 [thread overview]
Message-ID: <20150703114129.GA10368@katana> (raw)
In-Reply-To: <20150703111358.GW7557@n2100.arm.linux.org.uk>
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On Fri, Jul 03, 2015 at 12:13:58PM +0100, Russell King - ARM Linux wrote:
> On Fri, Jul 03, 2015 at 01:07:31PM +0200, Wolfram Sang wrote:
> > > Please share your .config file for this case. Thanks.
> >
> > Here it goes...
>
> Please try:
>
> sed -i s/IRQSOFF_TRACER/TRACE_IRQFLAGS/ arch/arm/kernel/entry-armv.S
Yes, this fixes the lockdep issue with HRTIMERS.
For completeness, it does not fix the freeze without HRTIMERS.
Thanks Russell!
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
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From: wsa@the-dreams.de (Wolfram Sang)
To: linux-arm-kernel@lists.infradead.org
Subject: Possible regression due to "tick: broadcast: Prevent livelock from event handler"
Date: Fri, 3 Jul 2015 13:41:29 +0200 [thread overview]
Message-ID: <20150703114129.GA10368@katana> (raw)
In-Reply-To: <20150703111358.GW7557@n2100.arm.linux.org.uk>
On Fri, Jul 03, 2015 at 12:13:58PM +0100, Russell King - ARM Linux wrote:
> On Fri, Jul 03, 2015 at 01:07:31PM +0200, Wolfram Sang wrote:
> > > Please share your .config file for this case. Thanks.
> >
> > Here it goes...
>
> Please try:
>
> sed -i s/IRQSOFF_TRACER/TRACE_IRQFLAGS/ arch/arm/kernel/entry-armv.S
Yes, this fixes the lockdep issue with HRTIMERS.
For completeness, it does not fix the freeze without HRTIMERS.
Thanks Russell!
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
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From: Wolfram Sang <wsa@the-dreams.de>
To: Russell King - ARM Linux <linux@arm.linux.org.uk>
Cc: Simon Horman <horms@verge.net.au>,
Geert Uytterhoeven <geert+renesas@glider.be>,
Kevin Hilman <khilman@kernel.org>,
Tyler Baker <tyler.baker@linaro.org>,
linux-sh@vger.kernel.org, Magnus Damm <magnus.damm@gmail.com>,
linux-kernel@vger.kernel.org, Borislav Petkov <bp@alien8.de>,
Thomas Gleixner <tglx@linutronix.de>,
linux-arm-kernel@lists.infradead.org
Subject: Re: Possible regression due to "tick: broadcast: Prevent livelock from event handler"
Date: Fri, 3 Jul 2015 13:41:29 +0200 [thread overview]
Message-ID: <20150703114129.GA10368@katana> (raw)
In-Reply-To: <20150703111358.GW7557@n2100.arm.linux.org.uk>
[-- Attachment #1: Type: text/plain, Size: 525 bytes --]
On Fri, Jul 03, 2015 at 12:13:58PM +0100, Russell King - ARM Linux wrote:
> On Fri, Jul 03, 2015 at 01:07:31PM +0200, Wolfram Sang wrote:
> > > Please share your .config file for this case. Thanks.
> >
> > Here it goes...
>
> Please try:
>
> sed -i s/IRQSOFF_TRACER/TRACE_IRQFLAGS/ arch/arm/kernel/entry-armv.S
Yes, this fixes the lockdep issue with HRTIMERS.
For completeness, it does not fix the freeze without HRTIMERS.
Thanks Russell!
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
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next prev parent reply other threads:[~2015-07-03 11:41 UTC|newest]
Thread overview: 75+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-03 2:40 Possible regression due to "tick: broadcast: Prevent livelock from event handler" Simon Horman
2015-07-03 2:40 ` Simon Horman
2015-07-03 2:40 ` Simon Horman
2015-07-03 6:46 ` Geert Uytterhoeven
2015-07-03 6:46 ` Geert Uytterhoeven
2015-07-03 6:46 ` Geert Uytterhoeven
2015-07-03 9:23 ` Thomas Gleixner
2015-07-03 9:23 ` Thomas Gleixner
2015-07-03 9:23 ` Thomas Gleixner
2015-07-03 10:54 ` Wolfram Sang
2015-07-03 10:54 ` Wolfram Sang
2015-07-03 10:54 ` Wolfram Sang
2015-07-03 11:02 ` Russell King - ARM Linux
2015-07-03 11:02 ` Russell King - ARM Linux
2015-07-03 11:02 ` Russell King - ARM Linux
2015-07-03 11:07 ` Wolfram Sang
2015-07-03 11:07 ` Wolfram Sang
2015-07-03 11:07 ` Wolfram Sang
2015-07-03 11:13 ` Russell King - ARM Linux
2015-07-03 11:13 ` Russell King - ARM Linux
2015-07-03 11:13 ` Russell King - ARM Linux
2015-07-03 11:41 ` Wolfram Sang [this message]
2015-07-03 11:41 ` Wolfram Sang
2015-07-03 11:41 ` Wolfram Sang
2015-07-03 13:19 ` Thomas Gleixner
2015-07-03 13:19 ` Thomas Gleixner
2015-07-03 13:19 ` Thomas Gleixner
2015-07-03 13:32 ` Wolfram Sang
2015-07-03 13:32 ` Wolfram Sang
2015-07-03 13:32 ` Wolfram Sang
2015-07-03 14:17 ` Thomas Gleixner
2015-07-03 14:17 ` Thomas Gleixner
2015-07-03 14:17 ` Thomas Gleixner
2015-07-03 14:37 ` Wolfram Sang
2015-07-03 14:37 ` Wolfram Sang
2015-07-03 14:37 ` Wolfram Sang
2015-07-03 14:45 ` Sudeep Holla
2015-07-03 14:45 ` Sudeep Holla
2015-07-03 14:45 ` Sudeep Holla
2015-07-03 14:54 ` Thomas Gleixner
2015-07-03 14:54 ` Thomas Gleixner
2015-07-03 14:54 ` Thomas Gleixner
2015-07-03 14:57 ` Sudeep Holla
2015-07-03 14:57 ` Sudeep Holla
2015-07-03 14:57 ` Sudeep Holla
2015-07-03 14:53 ` Thomas Gleixner
2015-07-03 14:53 ` Thomas Gleixner
2015-07-03 14:53 ` Thomas Gleixner
2015-07-03 15:09 ` Wolfram Sang
2015-07-03 15:09 ` Wolfram Sang
2015-07-03 15:09 ` Wolfram Sang
2015-07-03 15:23 ` Thomas Gleixner
2015-07-03 15:23 ` Thomas Gleixner
2015-07-03 15:23 ` Thomas Gleixner
2015-07-03 15:40 ` Wolfram Sang
2015-07-03 15:40 ` Wolfram Sang
2015-07-03 15:40 ` Wolfram Sang
2015-07-03 15:53 ` Thomas Gleixner
2015-07-03 15:53 ` Thomas Gleixner
2015-07-03 15:53 ` Thomas Gleixner
2015-07-03 16:00 ` Wolfram Sang
2015-07-03 16:00 ` Wolfram Sang
2015-07-03 16:00 ` Wolfram Sang
2015-07-06 4:42 ` Magnus Damm
2015-07-06 4:42 ` Magnus Damm
2015-07-06 4:42 ` Magnus Damm
2015-07-29 2:23 ` Simon Horman
2015-07-29 2:23 ` Simon Horman
2015-07-29 2:23 ` Simon Horman
2015-07-03 17:02 ` Geert Uytterhoeven
2015-07-03 17:02 ` Geert Uytterhoeven
2015-07-03 17:02 ` Geert Uytterhoeven
2015-07-06 4:45 ` Magnus Damm
2015-07-06 4:45 ` Magnus Damm
2015-07-06 4:45 ` Magnus Damm
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