Re: [Efsl-devel] 127 file limit in a subdirectory

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After much checking, I believe I found the problem. Looks like somehow, 
in a subfunction of dir.c (looking for clusters in a directory), a line 
got moved out of a for loop (how I am not entirely sure), but I went 
back and did a string compare on all the files and found the 
discrepancy. Once fixed, I was able to write it out fine.
I thank you guys again for your input.

Also, on an unrelated note, I saw on the forums a while back someone 
with a thread about getting the usb mass storage class working with 
efsl. I found this project that uses some of the efsl components to 
implement just that (although I havent tested it). Its called LPCUSB,
http://sourceforge.net/projects/lpcusb

I'll probably look at it and get a port done for the atmel arm7 core at 
some point in the near future.

Daniel

Daniel Medeiros wrote:
> Like most complex problems, it can be hard to find the cause. I do 
> have an Olimex board somewhere in which I can try the code to at least 
> get a different hardware solution to see if its repeatable. The more 
> information I can get (if this is indeed a known issue), the quicker 
> I'll find a solution to the problem. Anyways, I thank you guys for 
> your time in helping me narrow down the issue. Thanks
>
> Daniel
>
> M. Bester wrote:
>> Hello Daniel,
>>
>> I did the subdirectory test on an ARM7 (Atmel AT91SAM7S) with a 256MB 
>> SD card. I was able to create 513 files in a single subdirectory 
>> without any error. All files are accessible in the Explorer and 
>> Windows ScanDisk doesn't complain about anything. So maybe this is 
>> not an EFSL issue.
>>
>>
>> Marko
>>
>> Daniel Medeiros schrieb:
>>  
>>> I am using an ARM7 to do the writing - like i said on the notes, it 
>>> writes it fine to the root (200 files), but not to a subdir.
>>> I am using a card reader from sandisk to read it into windows2k.
>>>
>>>
>>> I re-formatted the card to use 16 sectors per cluster, it still wont 
>>> work - it seems that the code aborts after writing only a few files. 
>>> Ill have to spend a bit more time to get some meaningful detail on 
>>> the issue.
>>>
>>> Daniel
>>>
>>>
>>>
>>>
>>>
>>> M. Bester wrote:
>>>    
>>>> Hello Daniel,
>>>>
>>>> Daniel Medeiros schrieb:
>>>>        
>>>>> Here is a bit more of information. I have tried two 256M SD cards, 
>>>>> both with the same result.
>>>>> efs.myFs.volumeId.SectorsPerCluster=8
>>>>>
>>>>> Here is a quick snippet of code:
>>>>>
>>>>>
>>>>>  for(i=0;i<200;i++) {
>>>>>         get_filename(&state,1);
>>>>>         strcpy(&tmpstr,state.file_data);
>>>>>         strcpy(state.file_data,"DATA/");
>>>>>         strcat(state.file_data,tmpstr);
>>>>>         file_fopen(&file_gpx,&efs.myFs,state.file_data,'w');
>>>>>         file_write(&file_gpx,1,"2");
>>>>>         delay_ms(10);
>>>>>         file_fclose(&file_gpx);
>>>>>         }
>>>>>   fs_umount(&efs.myFs);
>>>>>
>>>>>             
>>>> For me this looks okay.
>>>> I'm testing on a PC where I load an image file as medium. I've just 
>>>> put
>>>> the image file on a 256MB SD card and it looks fine under WinXP. 
>>>> The format is 16 sectors per cluster.
>>>> What hardware are you using?
>>>>
>>>>        
>>>>> The get_filename function just formats and creates my files 
>>>>> (currently an index of 1up numbers).
>>>>> I append the directory info to it, then write 1 character, close 
>>>>> the file, and loop.
>>>>> I am including a link of a screenshot of that directory (so you 
>>>>> can see the corruption).
>>>>> http://www.marslabs.com/dir1.jpg
>>>>> http://www.marslabs.com/dir2.jpg
>>>>>
>>>>> Now, if I execute the same code on the root directory, I can write 
>>>>> out the 200 files without a problem.
>>>>>
>>>>>
>>>>> Any ideas off hand? Thanks
>>>>>
>>>>> Daniel Medeiros wrote:
>>>>>            
>>>>>> I am using 0.2.7 to create the files. I assumed 512 was for all 
>>>>>> dirs (including the root). The issue for me still remains that 
>>>>>> for some reason, after creating the 127th file, it trashes the 
>>>>>> fat table in the subdir in question. Ill run some more tests on 
>>>>>> it to try to narrow where the corruption is happening.
>>>>>>
>>>>>>
>>>>>> M. Bester wrote:
>>>>>>                  
>>>>>>> Hello,
>>>>>>>
>>>>>>> what EFSL version are you using?
>>>>>>> I'm using 0.2.7 and I've just created 513 files in a single 
>>>>>>> subdirectory without a problem.
>>>>>>> To my knowledge the limit of 512 files applies only to the root 
>>>>>>> directory.
>>>>>>>
>>>>>>> Marko
>>>>>>>
>>>>>>> Daniel Medeiros schrieb:
>>>>>>>                          
>>>>>>>> I will check the FAT, and look at the # of clusters. I know 
>>>>>>>> that FAT16 has a limit of 512, and for the application I am 
>>>>>>>> making its possible that there will be more files created than 
>>>>>>>> that over time, so Ill have to roll them into directories 
>>>>>>>> anyway. The issue then would become is it 100+ files per dir or 
>>>>>>>> 500+ files per dir.
>>>>>>>> Have a great Holiday
>>>>>>>>
>>>>>>>> Daniel
>>>>>>>>
>>>>>>>> Lennart Yseboodt wrote:
>>>>>>>>                                  
>>>>>>>>> Hi Daniel,
>>>>>>>>>
>>>>>>>>> Sounds like a bug to me. 127 is like 128, and 128/16=8.
>>>>>>>>> Is it possible you have 8 sectors per cluster ?
>>>>>>>>>
>>>>>>>>> I will try to look into this issue, but I will be honest, I'm 
>>>>>>>>> leaving for
>>>>>>>>> hollidays on the 11th and have a lot of things to do until 
>>>>>>>>> then, so
>>>>>>>>> if you need this fix fast you will have to do it yourself I'm 
>>>>>>>>> afraid :)
>>>>>>>>>
>>>>>>>>> Maybe Michael has time ?
>>>>>>>>>
>>>>>>>>> Regards,
>>>>>>>>>
>>>>>>>>> Lennart
>>>>>>>>>
>>>>>>>>> Daniel Medeiros wrote:
>>>>>>>>>                                            
>>>>>>>>>> I am running into a problem and before I spend too much time 
>>>>>>>>>> on it I wanted to get your opinions as someone may put me on 
>>>>>>>>>> the right track.
>>>>>>>>>> Inside a subdirectory off the root of the SD, as soon as I 
>>>>>>>>>> write out 127 files, the contents of that directory get too 
>>>>>>>>>> garbled (it puts trash data/directories).
>>>>>>>>>> I verified this with two different SD cards (so I dont think 
>>>>>>>>>> the issue is the SD in question). Everything works fine until 
>>>>>>>>>> I hit that limit. I know that FAT 16 has a limit of 512 files 
>>>>>>>>>> per directory, so I wouldn't have though I would hit it this 
>>>>>>>>>> soon. Any suggestions as to what may be going on? Thanks
>>>>>>>>>>
>>>>>>>>>> Daniel
>>>>>>>>>>
>>>>>>>>>> Using Tomcat but need to do more? Need to support web 
>>>>>>>>>> services, security?
>>>>>>>>>> Get stuff done quickly with pre-integrated technology to make 
>>>>>>>>>> your job easier
>>>>>>>>>> Download IBM WebSphere Application Server v.1.0.1 based on 
>>>>>>>>>> Apache Geronimo
>>>>>>>>>> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 
>>>>>>>>>>
>>>>>>>>>> _______________________________________________
>>>>>>>>>> Efsl-devel mailing list
>>>>>>>>>> Efs...@li...
>>>>>>>>>> https://lists.sourceforge.net/lists/listinfo/efsl-devel
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>                                                         
>>>>>>>>> Using Tomcat but need to do more? Need to support web 
>>>>>>>>> services, security?
>>>>>>>>> Get stuff done quickly with pre-integrated technology to make 
>>>>>>>>> your job easier
>>>>>>>>> Download IBM WebSphere Application Server v.1.0.1 based on 
>>>>>>>>> Apache Geronimo
>>>>>>>>> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 
>>>>>>>>>
>>>>>>>>> _______________________________________________
>>>>>>>>> Efsl-devel mailing list
>>>>>>>>> Efs...@li...
>>>>>>>>> https://lists.sourceforge.net/lists/listinfo/efsl-devel
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>                                             
>>>>>>>> Using Tomcat but need to do more? Need to support web services, 
>>>>>>>> security?
>>>>>>>> Get stuff done quickly with pre-integrated technology to make 
>>>>>>>> your job easier
>>>>>>>> Download IBM WebSphere Application Server v.1.0.1 based on 
>>>>>>>> Apache Geronimo
>>>>>>>> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 
>>>>>>>>
>>>>>>>> _______________________________________________
>>>>>>>> Efsl-devel mailing list
>>>>>>>> Efs...@li...
>>>>>>>> https://lists.sourceforge.net/lists/listinfo/efsl-devel
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>                                   
>>>>>>> Using Tomcat but need to do more? Need to support web services, 
>>>>>>> security?
>>>>>>> Get stuff done quickly with pre-integrated technology to make 
>>>>>>> your job easier
>>>>>>> Download IBM WebSphere Application Server v.1.0.1 based on 
>>>>>>> Apache Geronimo
>>>>>>> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> Efsl-devel mailing list
>>>>>>> Efs...@li...
>>>>>>> https://lists.sourceforge.net/lists/listinfo/efsl-devel
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>                           
>>>>>> Using Tomcat but need to do more? Need to support web services, 
>>>>>> security?
>>>>>> Get stuff done quickly with pre-integrated technology to make 
>>>>>> your job easier
>>>>>> Download IBM WebSphere Application Server v.1.0.1 based on Apache 
>>>>>> Geronimo
>>>>>> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 
>>>>>>
>>>>>> _______________________________________________
>>>>>> Efsl-devel mailing list
>>>>>> Efs...@li...
>>>>>> https://lists.sourceforge.net/lists/listinfo/efsl-devel
>>>>>>
>>>>>>
>>>>>>
>>>>>>                   
>>>>> Using Tomcat but need to do more? Need to support web services, 
>>>>> security?
>>>>> Get stuff done quickly with pre-integrated technology to make your 
>>>>> job easier
>>>>> Download IBM WebSphere Application Server v.1.0.1 based on Apache 
>>>>> Geronimo
>>>>> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 
>>>>>
>>>>> _______________________________________________
>>>>> Efsl-devel mailing list
>>>>> Efs...@li...
>>>>> https://lists.sourceforge.net/lists/listinfo/efsl-devel
>>>>>
>>>>>
>>>>>
>>>>>             
>>>>
>>>>
>>>> Using Tomcat but need to do more? Need to support web services, 
>>>> security?
>>>> Get stuff done quickly with pre-integrated technology to make your 
>>>> job easier
>>>> Download IBM WebSphere Application Server v.1.0.1 based on Apache 
>>>> Geronimo
>>>> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 
>>>>
>>>> _______________________________________________
>>>> Efsl-devel mailing list
>>>> Efs...@li...
>>>> https://lists.sourceforge.net/lists/listinfo/efsl-devel
>>>>
>>>>
>>>>
>>>>         
>>> Using Tomcat but need to do more? Need to support web services, 
>>> security?
>>> Get stuff done quickly with pre-integrated technology to make your 
>>> job easier
>>> Download IBM WebSphere Application Server v.1.0.1 based on Apache 
>>> Geronimo
>>> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 
>>>
>>> _______________________________________________
>>> Efsl-devel mailing list
>>> Efs...@li...
>>> https://lists.sourceforge.net/lists/listinfo/efsl-devel
>>>
>>>
>>>
>>>     
>>
>>
>>
>> Using Tomcat but need to do more? Need to support web services, 
>> security?
>> Get stuff done quickly with pre-integrated technology to make your 
>> job easier
>> Download IBM WebSphere Application Server v.1.0.1 based on Apache 
>> Geronimo
>> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
>> _______________________________________________
>> Efsl-devel mailing list
>> Efs...@li...
>> https://lists.sourceforge.net/lists/listinfo/efsl-devel
>>
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>>
>>   
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