From: Peter Hurley <peter@hurleysoftware.com>
To: sparclinux@vger.kernel.org
Subject: Re: RED state exception (trap type 0x64) on U5 reboot
Date: Sun, 01 Dec 2013 02:40:59 +0000 [thread overview]
Message-ID: <529AA1BB.8030702@hurleysoftware.com> (raw)
In-Reply-To: <alpine.SOC.1.00.1310151347070.902@math.ut.ee>
On 11/30/2013 09:07 PM, Peter Hurley wrote:
> On 11/30/2013 08:31 PM, Meelis Roos wrote:
>>> Does the RED state exception trigger if you manually break to the prom
>>> command line and issue a boot command?
>>
>> It seems I can not break from running kernel to PROM by sending break
>> from minicom. PROM itself reacts to my break (during memory test for
>> example) so it's Linux not accepting the break. I seem to remember it
>> having worked some time ago, although not when the kergel hung.
>
> Argghh.
>
> There were some changes to sunsab.c a couple of versions ago; maybe we
> broke it.
>
> Can you confirm BRKs are being received with
> 'sudo cat /proc/tty/driver/serial'
> ?
Relooking over sunsab.c, the BRK stats will only be accumulated if
sent with data, which may not be the case here.
Maybe check that '/proc/sys/kernel/stop-a' is set to 1.
For that matter, what is '/proc/sys/kernel/reboot-cmd'?
Regards.
Peter Hurley
next prev parent reply other threads:[~2013-12-01 2:40 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-15 11:51 RED state exception (trap type 0x64) on U5 reboot Meelis Roos
2013-10-21 8:58 ` Meelis Roos
2013-10-23 15:00 ` Peter Hurley
2013-10-24 11:48 ` Meelis Roos
2013-11-17 20:35 ` Meelis Roos
2013-11-17 20:52 ` Meelis Roos
2013-11-18 6:21 ` Meelis Roos
2013-11-18 12:41 ` Peter Hurley
2013-11-18 13:51 ` Peter Hurley
2013-11-18 15:46 ` Meelis Roos
2013-11-19 14:23 ` Peter Hurley
2013-11-20 11:50 ` Peter Hurley
2013-11-27 17:39 ` Meelis Roos
2013-11-28 1:38 ` Meelis Roos
2013-11-28 16:47 ` Meelis Roos
2013-11-29 7:31 ` Meelis Roos
2013-11-30 21:42 ` Meelis Roos
2013-11-30 23:04 ` Peter Hurley
2013-11-30 23:07 ` Peter Hurley
2013-12-01 1:18 ` Peter Hurley
2013-12-01 1:31 ` Meelis Roos
2013-12-01 1:32 ` Meelis Roos
2013-12-01 2:07 ` Peter Hurley
2013-12-01 2:40 ` Peter Hurley [this message]
2013-12-01 8:16 ` Meelis Roos
2013-12-01 14:39 ` Peter Hurley
2013-12-03 16:11 ` Meelis Roos
2013-12-03 16:47 ` Peter Hurley
2013-12-04 15:35 ` Meelis Roos
2013-12-06 15:54 ` Peter Hurley
2014-06-16 9:21 ` Meelis Roos
2014-06-16 14:37 ` Peter Hurley
2014-06-16 15:14 ` Christoph Lameter
2014-06-17 10:38 ` Meelis Roos
2014-06-17 14:14 ` Christoph Lameter
2014-06-17 15:50 ` Meelis Roos
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