From: sudeep.holla@arm•com (Sudeep Holla)
To: linux-arm-kernel@lists•infradead.org
Subject: Versatile Express randomly fails to boot - Versatile Express to be removed from nightly testing
Date: Tue, 14 Jun 2016 17:31:06 +0100 [thread overview]
Message-ID: <5760314A.4060509@arm.com> (raw)
In-Reply-To: <1465918285.2840.41.camel@linaro.org>
Hi Tixy,
On 14/06/16 16:31, Jon Medhurst (Tixy) wrote:
> Hi Sudeep
>
> Over the past several days I think I've been unknowingly reproducing
> many of the steps in this old discussion thread [1] about A9 Versatile
> Express boot failures. It's only when I found myself looking at the L2
> cache timings that I got a vague recollection and dug out this old
> thread again. Was there any resolution to the issue? As far as I can
> work out, the A9x4 CoreTile stopped working around Linux 3.18 (the
> problem isn't 100% reproducible so it's difficult to tell).
>
> Using "arm,tag-latency = <2 2 1>" as Russell seemed to indicate [2]
> fixed things for him, also works for me. So should we update mainline
> device-tree with that?
>
That's fine by me.
> Alternatively, we could assume nobody cares about A9 as presumably Linux
> has been unbootable for a year without anyone raising the issue. (The
> only reason I'm looking at it is I may be making U-Boot changes for
> vexpress and I wanted to test them).
>
I admit I just do a boot test every release and I seem to have flashed
the DT so failed to notice any issue. That's my fault.
> But if we are going to just ignore things, I think it would be good to
> delete the A9 dts, or the L2 cache entry, so other people in the future
> don't waste days trying to track down the problem.
>
I am fine either way, if people still use it as reference, we can retain it.
--
Regards,
Sudeep
prev parent reply other threads:[~2016-06-14 16:31 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-15 21:33 Versatile Express randomly fails to boot Russell King - ARM Linux
2015-03-16 0:04 ` Russell King - ARM Linux
2015-03-16 0:42 ` Russell King - ARM Linux
2015-03-16 9:35 ` Russell King - ARM Linux
2015-03-16 13:04 ` Versatile Express randomly fails to boot - Versatile Express to be removed from nightly testing Russell King - ARM Linux
2015-03-16 17:47 ` Sudeep Holla
2015-03-16 18:16 ` Russell King - ARM Linux
2015-03-16 19:16 ` Sudeep Holla
2015-03-16 19:52 ` Russell King - ARM Linux
2015-03-17 12:05 ` Sudeep Holla
2015-03-17 15:36 ` Russell King - ARM Linux
2015-03-17 15:51 ` Sudeep Holla
2015-03-17 16:17 ` Russell King - ARM Linux
2015-03-30 14:03 ` Russell King - ARM Linux
2015-03-30 14:48 ` Sudeep Holla
2015-03-30 15:05 ` Russell King - ARM Linux
2015-03-30 15:39 ` Sudeep Holla
2015-03-31 17:27 ` Sudeep Holla
2015-04-02 14:13 ` Russell King - ARM Linux
2015-04-02 17:38 ` Sudeep Holla
2016-06-14 15:31 ` Jon Medhurst (Tixy)
2016-06-14 15:52 ` Russell King - ARM Linux
2016-06-14 16:44 ` Sudeep Holla
2016-06-14 16:49 ` Russell King - ARM Linux
2016-06-15 9:27 ` Jon Medhurst (Tixy)
2016-06-15 9:32 ` Sudeep Holla
2016-06-15 9:50 ` Jon Medhurst (Tixy)
2016-06-15 9:59 ` Sudeep Holla
2016-06-15 9:27 ` Sudeep Holla
2016-06-14 16:31 ` Sudeep Holla [this message]
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