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List:       snap
Subject:    Re: [SNAP] SNAP Flash and file system
From:       FJBurgos <fjburgos () ingeniatecno ! com>
Date:       2007-04-18 15:45:53
Message-ID: 46263D31.7080806 () ingeniatecno ! com
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I'd like to know something about this problem.

I just write a few bytes (5-10) on each file every minute, 4 files in 
the worst case. I use BufferedOutputStream (buffer = 1024 bytes) and I 
flush every hour.

I think I'm not doing anything wrong.

FJBurgos wrote:
> Hi,
>
> Last Friday, I got these outputs.
>
>> |/root> date
>> Fri Mar 30 10:26:23 2007 ECT (DST)
>>
>> /root> df
>> Device                    Total       Used  Available Mountpoint
>> 0x410 0x0               1638400  -65543168   67181568 /
>>
>> /root> stats
>> SNAP Version:      SNAP 1.0.4, Vera
>> Build date:        Jun 21 2006 18:46:02
>> Reboot date:       Thu Mar 29 21:44:58 2007
>> Uptime:            0 days, 12:41:45
>> Disk usage:        -65543168/1638400 bytes
>> RAM usage:         2502568/8388608 bytes
>> Java heap usage:   421228/524288 bytes
>> Telnet server:     alive
>> Serial server:     alive
>> FTP server:        alive
>>
>> /root> cd logs
>> /root/logs> ls -l
>> -rw-r--r--    1 root     root      10157 2007 Mar 25 00:00 
>> emt_24-03-2007.log
>> -rw-r--r--    1 root     root      11685 2007 Mar 25 00:00 
>> actuadores_SectorUnico_24-03-2007.log
>> -rw-r--r--    1 root     root       8695 2007 Mar 25 00:00 
>> sensores_SectorUnico_24-03-2007.log
>> -rw-r--r--    1 root     root       7244 2007 Mar 25 00:00 
>> setpoint_SectorUnico_24-03-2007.log
>> -rw-r--r--    1 root     root       9737 2007 Mar 26 00:00 
>> emt_25-03-2007.log
>> -rw-r--r--    1 root     root      11205 2007 Mar 26 00:00 
>> actuadores_SectorUnico_25-03-2007.log
>> -rw-r--r--    1 root     root       8335 2007 Mar 26 00:00 
>> sensores_SectorUnico_25-03-2007.log
>> -rw-r--r--    1 root     root       6944 2007 Mar 26 00:00 
>> setpoint_SectorUnico_25-03-2007.log
>> -rw-r--r--    1 root     root      10157 2007 Mar 27 00:00 
>> emt_26-03-2007.log
>> -rw-r--r--    1 root     root      11685 2007 Mar 27 00:00 
>> actuadores_SectorUnico_26-03-2007.log
>> -rw-r--r--    1 root     root       8695 2007 Mar 27 00:00 
>> sensores_SectorUnico_26-03-2007.log
>> -rwxrwxrwx    1 255      255          -1 1970 Jan  1 00:59 
>> setpoint_SectorUnico_26-03-2007.log
>> -rw-r--r--    1 root     root      10157 2007 Mar 28 00:00 
>> emt_27-03-2007.log
>> -rw-r--r--    1 root     root      11685 2007 Mar 28 00:00 
>> actuadores_SectorUnico_27-03-2007.log
>> -rw-r--r--    1 root     root       8695 2007 Mar 28 00:00 
>> sensores_SectorUnico_27-03-2007.log
>> -rw-r--r--    1 root     root       7244 2007 Mar 28 00:00 
>> setpoint_SectorUnico_27-03-2007.log
>> -rwxrwxrwx    1 255      255          -1 1970 Jan  1 00:59 
>> emt_28-03-2007.log
>> -rw-r--r--    1 root     root       8445 2007 Mar 28 17:14 
>> actuadores_SectorUnico_28-03-2007.log
>> -rw-r--r--    1 root     root       6265 2007 Mar 28 17:14 
>> sensores_SectorUnico_28-03-2007.log
>> -rw-r--r--    1 root     root       5219 2007 Mar 28 17:14 
>> setpoint_SectorUnico_28-03-2007.log
>> -rw-r--r--    1 root     root       5187 2007 Mar 30 00:00 
>> emt_29-03-2007.log
>> -rw-r--r--    1 root     root       6313 2007 Mar 30 00:00 
>> actuadores_SectorUnico_29-03-2007.log
>> -rw-r--r--    1 root     root       4391 2007 Mar 30 00:00 
>> sensores_SectorUnico_29-03-2007.log
>> -rw-r--r--    1 root     root       3650 2007 Mar 30 00:00 
>> setpoint_SectorUnico_29-03-2007.log
>> -rw-r--r--    1 root     root       2037 2007 Mar 30 10:21 
>> emt_30-03-2007.log
>> -rw-r--r--    1 root     root       5085 2007 Mar 30 10:14 
>> actuadores_SectorUnico_30-03-2007.log
>> -rw-r--r--    1 root     root       3745 2007 Mar 30 10:14 
>> sensores_SectorUnico_30-03-2007.log
>> -rw-r--r--    1 root     root          0 2007 Mar 29 21:44 
>> setpoint_SectorUnico_23-03-2007.log
>> -rw-r--r--    1 root     root       3119 2007 Mar 30 10:14 
>> setpoint_SectorUnico_30-03-2007.log|
>
> There was no way to upload the jar file ("out of disk space", even 
> deleting all files).
>
> I had to do a hard reset, and I got no message warnings when 
> formatting (no bad blocks), but the file system was corrupted.
>
> Any SNAP on our system works more than 2 or 3 months because of 
> problems with flash.
>
> Any idea why the used space is negative? Are you working on file 
> system bugs?
>
> -- 
> _____________________________
> Fco. Javier Burgos Maciá
> Ingenia Tecnología S.L.
> ------------------------------------------------------------------------
>
> _______________________________________________
> Snap mailing list
> snap@imsystech.com
> http://www.imsystech.com/support/maillist.htm


-- 
_____________________________
Fco. Javier Burgos Maciá
Ingenia Tecnología S.L.

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