Re: [squid-users] COSS causing squid Segment Violation on FreeBSD 6.2S (store_io_coss.c)

From: Adrian Chadd <adrian_at_squid-cache.org>
Date: Thu, 14 Aug 2008 16:09:29 +0800

Don't load aio.ko; that way if squid tries using the POSIX AIO
routines it'll crash.

I should get around to removing those from Squid-2.HEAD (as the
implementation isn't "good enough" for the current way Squid does disk
IO) and reintroduce it later in a more sensibly abstracted disk IO
layer.

Yes, compile in aufs and coss together.

Adrian

2008/8/14 Mark Powell <M.S.Powell_at_salford.ac.uk>:
> On Thu, 14 Aug 2008, Adrian Chadd wrote:
>
>> I'm not sure how much time I'm going to have to look at this code right
>> now.
>>
>> My priorities are elsewhere and you're the only person who is
>> currently reporting this sort of pending relocation issues with COSS
>> and FreeBSD-6.3.
>>
>> I'd suggest patching the source to propagate upward the async IO write
>> failure (ie - the errno) and log the reason in cache.log. You may find
>> its something simple like the disk size being different to your
>> configured cache_dir size.. :)
>
> NP. If it's just me then I'll have a play around and see if I can get a
> config that's stable.
> Can you confirm that the KLM aio.ko should or should not be loaded?
> But AUFS and COSS must be both be compiled into squid?
> Cheers.
>
>>
>>
>>
>> 2008/8/13 Mark Powell <M.S.Powell_at_salford.ac.uk>:
>>>
>>> Hi,
>>> Updated to 2.7.STABLE4. Curiosity got the better of me and I re-enabled
>>> COSS.
>>> The same failure still seems to be occuring i.e.
>>> 'storeCossCompletePendingReloc: got failure (-1)' and a segfault on
>>> FreeBSD
>>> 6.3-p4.
>>> Not sure the bug has been looked at since I filed it?
>>>
>>> http://www.squid-cache.org/bugs/show_bug.cgi?id=1944
>>>
>>> Does this mean COSS always going to be a no-go on FreeBSD?
>>> Many thanks.
>>>
>>> On Thu, 26 Apr 2007, Adrian Chadd wrote:
>>>>
>>>> On Thu, Apr 26, 2007, Mark Powell wrote:
>>>>
>>>>> It does stop the crashes, but I'm getting a lot of errors, so of which
>>>>> appear to be new ones:
>>>>
>>>> Very eww. Now we need to figure out why the hell its spitting out those
>>>> pending relocate
>>>> IO errors as its probably playing havoc with things.
>>>>
>>>> Could you do me a favour and stuff all of this into a Bugzilla bug
>>>> report?
>>>> Bugzilla is linked off the main squid website front page.
>>>>
>>>>
>>>>
>>>> Adrian
>>>>
>>>>>
>>>>> 2007/04/26 15:12:17| COSS: /dev/amrd1: Rebuild Completed
>>>>> 2007/04/26 15:12:17| 81219 objects scanned, 144 objects relocated,
>>>>> 555
>>>>> objects fresher, 9346 objects ignored
>>>>> 2007/04/26 15:12:18| Completed Validation Procedure
>>>>> 2007/04/26 15:12:18| Validated 143160 Entries
>>>>> 2007/04/26 15:12:18| store_swap_size = 2576724k
>>>>> 2007/04/26 15:12:19| storeLateRelease: released 4996 objects
>>>>> 2007/04/26 15:12:21| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:12:29| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:12:29| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:12:29| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:12:29| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:12:36| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:12:38| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:12:38| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:12:38| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:12:38| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:12:38| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:12:38| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:12:38| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:12:38| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:12:38| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:12:38| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:12:38| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:12:38| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:12:38| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:12:39| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:12:39| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:12:39| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:12:39| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:12:39| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:12:39| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:12:39| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:13:18| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:13:31| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:13:31| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:13:32| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:13:32| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:13:32| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:13:32| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:13:32| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:13:32| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:13:32| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:13:33| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:13:41| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:14:23| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:14:35| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:14:35| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:15:00| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:15:24| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:15:33| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:15:45| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:15:45| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:15:56| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:15:56| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:15:56| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:15:56| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:15:56| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:15:56| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:15:57| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:15:57| squidaio_queue_request: WARNING - Queue congestion
>>>>> 2007/04/26 15:16:04| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:07| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:07| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:07| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:07| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:07| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:07| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:07| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:07| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:08| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:08| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:08| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:08| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:08| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:08| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:08| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:08| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:08| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:14| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:19| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:19| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:19| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:19| ctx: enter level 0:
>>>>> 'http://www.theaa.com/css/product_styles.css'
>>>>> 2007/04/26 15:16:19| WARNING: failed to unpack meta data
>>>>> 2007/04/26 15:16:19| ctx: exit level 0
>>>>> 2007/04/26 15:16:19| ctx: enter level 0:
>>>>> 'http://www.theaa.com/css/print.css'
>>>>> 2007/04/26 15:16:19| WARNING: failed to unpack meta data
>>>>> 2007/04/26 15:16:19| ctx: exit level 0
>>>>> 2007/04/26 15:16:19| ctx: enter level 0:
>>>>> 'http://www.theaa.com/css/aa_homepage_styles.css'
>>>>> 2007/04/26 15:16:19| WARNING: failed to unpack meta data
>>>>> 2007/04/26 15:16:19| ctx: exit level 0
>>>>> 2007/04/26 15:16:19| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:19| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:19| ctx: enter level 0:
>>>>> 'http://www.theaa.com/css/tools.css'
>>>>> 2007/04/26 15:16:19| WARNING: failed to unpack meta data
>>>>> 2007/04/26 15:16:19| ctx: exit level 0
>>>>> 2007/04/26 15:16:19| ctx: enter level 0:
>>>>> 'http://www.theaa.com/css/leftNav.css'
>>>>> 2007/04/26 15:16:19| WARNING: failed to unpack meta data
>>>>> 2007/04/26 15:16:19| ctx: exit level 0
>>>>> 2007/04/26 15:16:19| ctx: enter level 0:
>>>>> 'http://www.theaa.com/css/topnav.css'
>>>>> 2007/04/26 15:16:19| WARNING: failed to unpack meta data
>>>>> 2007/04/26 15:16:19| ctx: exit level 0
>>>>> 2007/04/26 15:16:19| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:19| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:19| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:19| ctx: enter level 0:
>>>>> 'http://www.theaa.com/javascript/metafaqs.js'
>>>>> 2007/04/26 15:16:19| WARNING: failed to unpack meta data
>>>>> 2007/04/26 15:16:19| ctx: exit level 0
>>>>> 2007/04/26 15:16:19| ctx: enter level 0:
>>>>> 'http://www.theaa.com/images/topnav/mainlogo.gif'
>>>>> 2007/04/26 15:16:19| WARNING: failed to unpack meta data
>>>>> 2007/04/26 15:16:19| ctx: exit level 0
>>>>> 2007/04/26 15:16:19| ctx: enter level 0:
>>>>> 'http://www.theaa.com/images/common/bg_body.png'
>>>>> 2007/04/26 15:16:19| WARNING: failed to unpack meta data
>>>>> 2007/04/26 15:16:19| ctx: exit level 0
>>>>> 2007/04/26 15:16:19| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:19| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:19| ctx: enter level 0:
>>>>> 'http://www.theaa.com/images/topnav/meta_faq_button.gif'
>>>>> 2007/04/26 15:16:19| WARNING: failed to unpack meta data
>>>>> 2007/04/26 15:16:19| ctx: exit level 0
>>>>> 2007/04/26 15:16:19| ctx: enter level 0:
>>>>> 'http://www.theaa.com/touchclarity/logging.js'
>>>>> 2007/04/26 15:16:19| WARNING: failed to unpack meta data
>>>>> 2007/04/26 15:16:19| ctx: exit level 0
>>>>> 2007/04/26 15:16:19| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:20| ctx: enter level 0:
>>>>> 'http://www.theaa.com/touchclarity/logging-code.js'
>>>>> 2007/04/26 15:16:20| WARNING: failed to unpack meta data
>>>>> 2007/04/26 15:16:20| ctx: exit level 0
>>>>> 2007/04/26 15:16:20| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:20| ctx: enter level 0:
>>>>> 'http://www.theaa.com/touchclarity/optimise.js'
>>>>> 2007/04/26 15:16:20| WARNING: failed to unpack meta data
>>>>> 2007/04/26 15:16:20| ctx: exit level 0
>>>>> 2007/04/26 15:16:20| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:20| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:20| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:20| storeCossCompletePendingReloc: got failure (-1)
>>>>> 2007/04/26 15:16:20| ctx: enter level 0:
>>>>> 'http://www.theaa.com/touchclarity/logging.html'
>>>>> 2007/04/26 15:16:20| WARNING: failed to unpack meta data
>>>>> 2007/04/26 15:16:20| ctx: exit level 0
>>>>> 2007/04/26 15:16:20| ctx: enter level 0:
>>>>>
>>>>> 'http://www.theaa.com/images/homepage/travel/travel_newsflash_title.gif'
>>>>> 2007/04/26 15:16:20| WARNING: failed to unpack meta data
>>>>> 2007/04/26 15:16:20| ctx: exit level 0
>>>>> 2007/04/26 15:16:20| ctx: enter level 0:
>>>>>
>>>>> 'http://www.theaa.com/images/homepage/travel/travel_newflash_button.gif'
>>>>> 2007/04/26 15:16:20| WARNING: failed to unpack meta data
>>>>> 2007/04/26 15:16:20| ctx: exit level 0
>>>>> 2007/04/26 15:16:20| ctx: enter level 0:
>>>>> 'http://www.theaa.com/images/homepage/travel/travel_newflash_bg.jpg'
>>>>> 2007/04/26 15:16:20| WARNING: failed to unpack meta data
>>>>>
>>>>> Cheers.
>>>>>
>>>>> --
>>>>> Mark Powell - UNIX System Administrator - The University of Salford
>>>>> Information Services Division, Clifford Whitworth Building,
>>>>> Salford University, Manchester, M5 4WT, UK.
>>>>> Tel: +44 161 295 4837 Fax: +44 161 295 5888 www.pgp.com for PGP key
>>>>
>>>>
>>>
>>> --
>>> Mark Powell - UNIX System Administrator - The University of Salford
>>> Information Services Division, Clifford Whitworth Building,
>>> Salford University, Manchester, M5 4WT, UK.
>>> Tel: +44 161 295 6843 Fax: +44 161 295 5888 www.pgp.com for PGP key
>>>
>>>
>>
>
> --
> Mark Powell - UNIX System Administrator - The University of Salford
> Information Services Division, Clifford Whitworth Building,
> Salford University, Manchester, M5 4WT, UK.
> Tel: +44 161 295 6843 Fax: +44 161 295 5888 www.pgp.com for PGP key
>
>
Received on Thu Aug 14 2008 - 08:09:36 MDT

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