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Date:      Mon, 18 May 2015 18:45:06 -0600
From:      Dan Raymond <draymond@foxvalley.net>
To:        Keith White <kwhite@site.uottawa.ca>,  Luiz Otavio O Souza <lists.br@gmail.com>
Cc:        "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org>
Subject:   Re: state of FreeBSD ARM (less stable than 6 months ago)
Message-ID:  <555A8792.9000809@foxvalley.net>
In-Reply-To: <alpine.BSF.2.20.1505181523120.93723@localhost.my.domain>
References:  <5550C252.6030001@foxvalley.net> <1431357226.2428197.265704673.6A544F74@webmail.messagingengine.com> <555177D9.8080001@foxvalley.net> <CAB=2f8zYShMH1P96MsdfP0ReMEwpkDJ%2Bq8dvMHHHjiMGmqnrqg@mail.gmail.com> <alpine.BSF.2.20.1505181523120.93723@localhost.my.domain>

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On 5/18/2015 1:26 PM, Keith White wrote:
> On Tue, 12 May 2015, Luiz Otavio O Souza wrote:
>
>> On 12 May 2015 at 00:47, Dan Raymond wrote:
>>> On 5/11/2015 9:13 AM, Mark Felder wrote:
>>>>
>>>> On Mon, May 11, 2015, at 09:53, Dan Raymond wrote:
>>>>>
>>>>> I've been running an email and web server using FreeBSD 11 on a
>>>>> Raspberry Pi B+ since November.  It has crashed 3 times since then
>>>>> (roughly every two months).  I'm currently running r277334.  I 
>>>>> thought
>>>>> I'd try the latest build to see if stability has improved. I 
>>>>> purchased a
>>>>> Raspberry Pi 2 and used the latest crochet to built r282738.  No
>>>>> problems building it and it booted up fine.  However, it crashes 
>>>>> about
>>>>> an hour into building some ports I use for my server (nginx, php,
>>>>> etc.).  I tried twice last night and it crashed both times.  Is 
>>>>> anybody
>>>>> looking into these stability issues?
>>>>>
>>>> RPi2 support is something like less than a week old for SMP and DMA
>>>> transport. I'm not sure more than a handful of people have actually
>>>> tried it yet. The bugs here will be worked out in time, but if you 
>>>> have
>>>> any core dumps or info that can assist in tracking down issues you're
>>>> experiencing that would certainly be appreciated.
>>>>
>>>
>>> These panics always seem to be mmcsd related.  I doubt it has 
>>> anything to do
>>> with RPi2 or SMP.
>>>
>>> sdhci_bcm0-slot0:  Controller timeout
>>> sdhci_bcm0-slot0: ============== REGISTER DUMP ==============
>>> sdhci_bcm0-slot0: Sys addr: 0x4d295a00 | Version:  0x00009902
>>> sdhci_bcm0-slot0: Blk size: 0x00000200 | Blk cnt:  0x00000020
>>> sdhci_bcm0-slot0: Argument: 0x002d19c0 | Trn mode: 0x0000193a
>>> sdhci_bcm0-slot0: Present:  0x01ff0506 | Host ctl: 0x00000003
>>> sdhci_bcm0-slot0: Power:    0x0000000f | Blk gap:  0x00000000
>>> sdhci_bcm0-slot0: Wake-up:  0x00000000 | Clock:    0x00000507
>>> sdhci_bcm0-slot0: Timeout:  0x0000000e | Int stat: 0x00000010
>>> sdhci_b
>>>
>>>
>>>
>>> mmcsd0: Error indicated: 1 Timeout
>>> g_vfs_done():mmcsd0s2a[WRITE(offset=1460830208, length=24576)]error = 5
>>> panic: No b_bufobj 0xd767ca00
>>> cpuid = 1
>>> KDB: enter: panic
>>> [ thread pid 12 tid 100013 ]
>>> Stopped at      $d.7:   ldrb   r15, [r15, r15, ror r15]!
>>> db>
>>
>> Hm, I have seen this already, it is the sdhci software timeout.
>>
>> The 'happens at night' part rings a bell for me.
>>
>> In my case it happened only with a card that has failed a few weeks
>> later, so I thought it was a pre-fail case.
>>
>> But in certain cases (depending on the card) I think this timeout can
>> be triggered with normal usage.
>>
>> Please try the attached patch and let me know if it works for you.
>>
>> Luiz
>>
>> Index: sys/dev/sdhci/sdhci.c
>> ===================================================================
>> --- sys/dev/sdhci/sdhci.c       (revision 282210)
>> +++ sys/dev/sdhci/sdhci.c       (working copy)
>> @@ -872,7 +872,7 @@
>>        /* Start command. */
>>        WR2(slot, SDHCI_COMMAND_FLAGS, (cmd->opcode << 8) | (flags & 
>> 0xff));
>>        /* Start timeout callout. */
>> -       callout_reset(&slot->timeout_callout, 2*hz, sdhci_timeout, 
>> slot);
>> +       callout_reset(&slot->timeout_callout, 10*hz, sdhci_timeout, 
>> slot);
>> }
>>
>> static void
>> _______________________________________________
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>> http://lists.freebsd.org/mailman/listinfo/freebsd-arm
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>
> Luiz, the patch works for me.  Thanks!
>
> [Tested on BBB with a 2GB microSD that previously gave a WRITE timeout.]
>
> ...keith

I was out of town for a few days but yesterday I tried the patch and I 
was able to build my ports without a panic.  I'll continue to do some 
more testing.




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