I found that reproducable when i got error message for not enough disk space left. ... afterwards i saw such errors...start from zero. Restore factory default and do sysbackup with nee binary... Pain in the a... but thats the only way that worked for me..

You shouldn't need to do anything with a .bin file to fix a jffs2 error, unless you've flashed a .bin file for the wrong board (2 vs 2+, or worse original Omega), or you used one of the bad .bin files that were published months ago (and hopefully withdrawn??)