Append does not return error on full disks
fgiasson at mediatrix.com
Tue May 28 08:30:03 EDT 2002
I have observed that jffs2 nevers returns a 'disk full' error when
an application appends data to an existing file. I have setup a test which
opens an existing file for appending, and fwrite() data to it until fwrite()
My test never stopped! So when I manually stoppped it, the file system was
corrupted. I was unable to unmount it, and neither I could remount it after
reboot. I have setup a second test which is a script instead of being a
program, using the append '>>' command. Same results.
During my test, I did'nt open the file with OSYNC flag though, maybe
it could patch the problem. I will try it.
Nevertheless, it shouldn't happen that a process be able to append data
indefinitely to a file without ever getting an error when the disk becomes
Does anyone have a clue about it? Maybe there is a bug somewhere
down in the jffs2_reserve_space() function?
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