[Vibrant General] s3gfault:
So, when I first applied the JI6 update from OTA, the phone stopped booting (I had RyanZA's lagfix applied at that time). Restored to stock w/ Odin and applied the JI6 that had been posted here and that worked fine. Today i re-applied the same ext2 lagfix, but had to adjust it a tad to add a remount command for /system because it failed setting up userinit.sh for rebooting, but that worked fine.

The problems appeared after a reboot. several apps were misbehaving, and i saw these messages in logcat:

E/ApplicationContext( 3232): Couldn't create directory for SharedPreferences file [COLOR="red"]/data/data/[/COLOR]com.alfray.timeriffic/share
d_prefs/com.alfray.timeriffic_preferences.xml

E/AndroidRuntime( 3232): Uncaught handler: thread main exiting due to uncaught exception
E/AndroidRuntime( 3232): java.lang.RuntimeException: Unable to resume activity {com.alfray.timeriffic/com.alfray.timerif
fic.profiles.ProfilesUI}: android.database.sqlite.SQLiteException: [COLOR="Red"]database is locked[/COLOR]

The first one immediately raised a red flag for me, and the second is concerning (I'm not sure where these databases are stored but i think they may be /data/data).

So i open adb shell as root and tried to create a file in my new ext2 partition and i get this:

# echo "" > com.alfray.timeriffic_preferences.xml
cannot create com.alfray.timeriffic_preferences.xml: [COLOR="red"]remote access failed[/COLOR]
#

but the file was created at some point, i did these things a few minutes later:

# pwd
pwd
/data/ext2data/data/com.alfray.timeriffic/shared_prefs
# mount
mount
rootfs / rootfs ro 0 0
tmpfs /dev tmpfs rw,mode=755 0 0
devpts /dev/pts devpts rw,mode=600 0 0
proc /proc proc rw 0 0
sysfs /sys sysfs rw 0 0
/dev/block/stl6 /mnt/.lfs j4fs rw 0 0
tmpfs /sqlite_stmt_journals tmpfs rw,size=4096k 0 0
none /dev/cpuctl cgroup rw,cpu 0 0
/dev/block/stl9 /system rfs ro,vfat,log_off,check=no,gid/uid/rwx,iocharset=utf8 0 0
/dev/block/mmcblk0p2 /data rfs rw,nosuid,nodev,vfat,llw,check=no,gid/uid/rwx,iocharset=utf8 0 0
/dev/block/mmcblk0p3 /data_tmo rfs rw,nosuid,nodev,vfat,llw,check=no,gid/uid/rwx,iocharset=utf8 0 0
/dev/block/stl10 /dbdata rfs rw,nosuid,nodev,vfat,llw,check=no,gid/uid/rwx,iocharset=utf8 0 0
/dev/block/stl11 /cache rfs rw,nosuid,nodev,vfat,llw,check=no,gid/uid/rwx,iocharset=utf8 0 0
/dev/block/stl3 /efs rfs rw,nosuid,nodev,vfat,llw,check=no,gid/uid/rwx,iocharset=utf8 0 0
[COLOR="red"]/dev/loop0 /data/ext2data ext2 rw,noatime,nodiratime,errors=continue 0 0[/COLOR]
/dev/block//vold/179:1 /sdcard vfat rw,dirsync,nosuid,nodev,noexec,uid=1000,gid=1015,fmask=0102,dmask=0002,allow_utime=0
020,codepage=cp437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro 0 0
/dev/block//vold/179:9 /sdcard/sd vfat rw,dirsync,nosuid,nodev,noexec,uid=1000,gid=1015,fmask=0000,dmask=0000,allow_utim
e=0022,codepage=cp437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro 0 0
# ls
ls
[COLOR="Red"]com.alfray.timeriffic_preferences.xml[/COLOR]
#

Huh? Then i tried to read or delete that file:

# cat com.alfray.timeriffic_preferences.xml
cat com.alfray.timeriffic_preferences.xml
com.alfray.timeriffic_preferences.xml: [COLOR="red"]Stale NFS file handle[/COLOR]
# rm com.alfray.timeriffic_preferences.xml
rm com.alfray.timeriffic_preferences.xml
rm failed for com.alfray.timeriffic_preferences.xml, Stale NFS file handle
#

So, any suggestions?