powerpc linux 4.1.8-rt8 32bit p4080ds
After erasing and creating 15GB EXT4 fs (for nand flash), sync command occasionally hangs.
found out it hangs inside: jbd2_log_wait_commit().
I saw that many people encountered this problem and didn't find solution.
1. Is there any known fix for this hang?
2. If not , is it safe to cancel journaling just for the ext4 fs and just for the sync during startup (rest of syncs will execute as usual)