10.1-STABLE one week old from svn - random hangs

[Wojciech Puchar]

how to get via svn or other means sources of 10*-STABLE from 18.06.2014?

to get back to working system.

On Sun, 7 Dec 2014, Wojciech Puchar wrote:

> no crashdump. system does not panic
> so i cannot do this
>
> On Sun, 7 Dec 2014, Alfred Perlstein wrote:
>
>> Can you enable crashdumps please and then send a traceback?
>> 
>> 
>> https://www.freebsd.org/doc/en/books/developers-handbook/kerneldebug.html
>> 
>> These two are most helpful:
>> https://www.freebsd.org/doc/en/books/developers-handbook/kerneldebug.html#kerneldebug-obtain
>> https://www.freebsd.org/doc/en/books/developers-handbook/kerneldebug-gdb.html
>> 
>> 
>> On 12/7/14, 3:36 AM, Lev Serebryakov wrote:
>>> -----BEGIN PGP SIGNED MESSAGE-----
>>> Hash: SHA512
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>>> On 07.12.2014 12:40, Wojciech Puchar wrote:
>>> 
>>>> The problem. At random moment system I/O stops. If you are running
>>>> top at this moment, there are lots of prosesses stalled in vnread
>>>> or biord. network keeps running, processes that doesn't need I/O
>>>> still runs.
>>>> 
>>>> top often reports at least 10MB free memory.
>>>> 
>>>> seems like a deadlock. Anyone know that problem. How to trace it
>>>> down?
>>>   Looks like I have same problem sometimes.  And you could not run any
>>> new process, you could not login on console, but you could switch
>>> virtual consoles & if "top" is running on one of them, it doesn't hang
>>> itself, right?
>>>
>>>   I get this typically when "svnsync" synchronize my local FreeBSD repo
>>> mirror and after that FS (UFS2 with SUJ) with my repo is heavily damaged.
>>> 
>>> - -- // Lev Serebryakov AKA Black Lion
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>> 
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