From: ipaton0@gmail.com (Iain Paton)
To: linux-arm-kernel@lists.infradead.org
Subject: Oops: 17 SMP ARM (v3.16-rc2)
Date: Tue, 26 Aug 2014 14:11:51 +0100 [thread overview]
Message-ID: <53FC8797.1030803@gmail.com> (raw)
In-Reply-To: <20140825101832.GT30401@n2100.arm.linux.org.uk>
On 25/08/14 11:18, Russell King - ARM Linux wrote:
> On Wed, Aug 13, 2014 at 01:39:27PM +0000, Mattis Lorentzon wrote:
>> All our tests seem to behave the same way on the Sabrelite as on our own board.
>> A working theory is that the switch (3Com Switch 4400) triggers the degeneration
>> of the network stack from which Linux does not seem to recover, even if we later
>> bypass the switch and directly connect the board to the server machine.
>
> Please can you try something - what happens if you completely disable
> pause frame support (flow control) on all machines on the switch?
Russell, while trying to duplicate this I have flow-control disabled
on the switch which leads to it being auto-negotiated off on all devices.
Do you think it could be worth turning it on and trying again?
WARNING: multiple messages have this Message-ID (diff)
From: Iain Paton <ipaton0@gmail.com>
To: Russell King - ARM Linux <linux@arm.linux.org.uk>
Cc: Mattis Lorentzon <Mattis.Lorentzon@autoliv.com>,
Fredrik Noring <fredrik.noring@autoliv.com>,
Fabio Estevam <festevam@gmail.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: Oops: 17 SMP ARM (v3.16-rc2)
Date: Tue, 26 Aug 2014 14:11:51 +0100 [thread overview]
Message-ID: <53FC8797.1030803@gmail.com> (raw)
In-Reply-To: <20140825101832.GT30401@n2100.arm.linux.org.uk>
On 25/08/14 11:18, Russell King - ARM Linux wrote:
> On Wed, Aug 13, 2014 at 01:39:27PM +0000, Mattis Lorentzon wrote:
>> All our tests seem to behave the same way on the Sabrelite as on our own board.
>> A working theory is that the switch (3Com Switch 4400) triggers the degeneration
>> of the network stack from which Linux does not seem to recover, even if we later
>> bypass the switch and directly connect the board to the server machine.
>
> Please can you try something - what happens if you completely disable
> pause frame support (flow control) on all machines on the switch?
Russell, while trying to duplicate this I have flow-control disabled
on the switch which leads to it being auto-negotiated off on all devices.
Do you think it could be worth turning it on and trying again?
next prev parent reply other threads:[~2014-08-26 13:11 UTC|newest]
Thread overview: 91+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-25 13:55 Oops: 17 SMP ARM (v3.16-rc2) Mattis Lorentzon
2014-06-26 14:01 ` Russell King - ARM Linux
2014-06-26 14:44 ` Mattis Lorentzon
2014-06-26 14:44 ` Mattis Lorentzon
2014-06-26 15:14 ` Russell King - ARM Linux
2014-06-26 15:14 ` Russell King - ARM Linux
2014-06-27 11:21 ` Russell King - ARM Linux
2014-06-27 11:21 ` Russell King - ARM Linux
2014-06-27 16:16 ` Fredrik Noring
2014-06-27 16:16 ` Fredrik Noring
2014-06-27 16:31 ` Russell King - ARM Linux
2014-06-27 16:31 ` Russell King - ARM Linux
2014-06-30 6:22 ` Fredrik Noring
2014-06-30 6:22 ` Fredrik Noring
2014-06-30 12:30 ` Fredrik Noring
2014-06-30 12:30 ` Fredrik Noring
2014-06-30 13:00 ` Nathan Lynch
2014-06-30 13:00 ` Nathan Lynch
2014-07-02 6:02 ` Fredrik Noring
2014-07-02 6:02 ` Fredrik Noring
2014-08-05 13:31 ` Mattis Lorentzon
2014-08-05 13:31 ` Mattis Lorentzon
2014-08-05 13:53 ` Fabio Estevam
2014-08-05 13:53 ` Fabio Estevam
2014-08-06 6:48 ` Mattis Lorentzon
2014-08-06 6:48 ` Mattis Lorentzon
2014-08-06 9:50 ` Russell King - ARM Linux
2014-08-06 9:50 ` Russell King - ARM Linux
2014-08-06 11:10 ` Mattis Lorentzon
2014-08-06 11:10 ` Mattis Lorentzon
2014-08-06 12:55 ` Russell King - ARM Linux
2014-08-06 12:55 ` Russell King - ARM Linux
2014-08-07 11:11 ` Mattis Lorentzon
2014-08-07 11:11 ` Mattis Lorentzon
2014-08-07 12:12 ` Russell King - ARM Linux
2014-08-07 12:12 ` Russell King - ARM Linux
2014-08-07 14:20 ` Fabio Estevam
2014-08-07 14:20 ` Fabio Estevam
2014-08-07 14:38 ` Fabio Estevam
2014-08-07 14:38 ` Fabio Estevam
2014-08-08 1:30 ` Troy Kisky
2014-08-08 1:30 ` Troy Kisky
2014-08-08 14:05 ` Fabio Estevam
2014-08-08 14:05 ` Fabio Estevam
2014-08-08 18:09 ` Russell King - ARM Linux
2014-08-08 18:09 ` Russell King - ARM Linux
2014-08-11 13:32 ` Mattis Lorentzon
2014-08-11 13:32 ` Mattis Lorentzon
2014-08-11 17:41 ` Fabio Estevam
2014-08-11 17:41 ` Fabio Estevam
2014-08-13 13:39 ` Mattis Lorentzon
2014-08-13 13:39 ` Mattis Lorentzon
2014-08-25 10:18 ` Russell King - ARM Linux
2014-08-25 10:18 ` Russell King - ARM Linux
2014-08-26 13:11 ` Iain Paton [this message]
2014-08-26 13:11 ` Iain Paton
2014-08-14 14:43 ` Mattis Lorentzon
2014-08-14 14:43 ` Mattis Lorentzon
2014-08-14 15:30 ` Fabio Estevam
2014-08-14 15:30 ` Fabio Estevam
2014-08-15 5:42 ` Mattis Lorentzon
2014-08-15 5:42 ` Mattis Lorentzon
2014-08-17 21:34 ` Iain Paton
2014-08-17 21:34 ` Iain Paton
2014-08-17 21:46 ` Fabio Estevam
2014-08-17 21:46 ` Fabio Estevam
2014-08-19 6:03 ` Iain Paton
2014-08-19 6:03 ` Iain Paton
2014-08-21 9:39 ` Iain Paton
2014-08-21 9:39 ` Iain Paton
2014-08-22 0:01 ` Fabio Estevam
2014-08-22 0:01 ` Fabio Estevam
2014-08-22 6:39 ` Mattis Lorentzon
2014-08-22 6:39 ` Mattis Lorentzon
2014-08-22 10:36 ` Iain Paton
2014-08-22 10:36 ` Iain Paton
2014-08-27 6:32 ` Mattis Lorentzon
2014-08-27 6:32 ` Mattis Lorentzon
2014-08-27 10:43 ` Iain Paton
2014-08-27 10:43 ` Iain Paton
2014-08-29 10:57 ` Mattis Lorentzon
2014-08-29 10:57 ` Mattis Lorentzon
2014-08-29 11:30 ` Fabio Estevam
2014-08-29 11:30 ` Fabio Estevam
2014-12-16 14:50 ` Mattis Lorentzon
2014-12-16 14:50 ` Mattis Lorentzon
2014-08-26 13:12 ` Iain Paton
2014-08-26 13:12 ` Iain Paton
2014-08-22 8:27 ` Russell King - ARM Linux
2014-08-22 8:27 ` Russell King - ARM Linux
-- strict thread matches above, loose matches on Subject: below --
2014-06-26 13:16 Mattis Lorentzon
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