Sunday, September 25, 2016

Filesystem problems with /system, keeps remounting ro , filesystem errors common ?

Hey all, so I was making some new bootanimations and was about to try them out when I noticed that even after remounting /system rw and performing an operation, I was getting filesystem errors which caused it to remount ro (standard linux procedure to avoid data corruption.)
Here's the output while using adb shell while TWRP is running:

Code:

<2>[01-05 19:55:34.389] [0][51: bdi_writeback_w]EXT4-fs error (device sde13): ext4_mb_generate_buddy:757: group 27, block bitmap and bg descriptor inconsistent: 1 vs 65364 free clusters
<3>[01-05 19:55:34.389] [0][51: bdi_writeback_w]Aborting journal on device sde13-8.
<2>[01-05 19:55:34.389] [0][51: bdi_writeback_w]EXT4-fs (sde13): Remounting filesystem read-only
<2>[01-05 19:55:34.389] [0][51: bdi_writeback_w]EXT4-fs error (device sde13): ext4_mb_generate_buddy:757: group 28, block bitmap and bg descriptor inconsistent: 1 vs 43594 free clusters
<2>[01-05 19:55:34.389] [0][51: bdi_writeback_w]EXT4-fs error (device sde13): ext4_mb_generate_buddy:757: group 29, block bitmap and bg descriptor inconsistent: 16190 vs 49475 free clusters
<2>[01-05 19:55:34.389] [0][51: bdi_writeback_w]EXT4-fs error (device sde13): ext4_mb_generate_buddy:757: group 30, block bitmap and bg descriptor inconsistent: 32258 vs 20790 free clusters

So I rebooted back in to TWRP (it was semi-hung after the fs error) and ran `e2fsck /dev/block/sde13` and it found and fixed a few errors. My question is, has anyone else experienced this ? Is it fairly common or should I be considering a warranty return ?
I know with traditional HDDs and even SDDs, this can be an indication of a failing drive, or also from a power failure during a write operation on /system (I'm sure I've had a few.)

After my e2fsck, I was able to copy the bootanimation.zip in to place and it works fine (I'll post after I polish a bit). Hopefully I won't see it again, but I did want to reach out in case others were seeing this or had more experience about it's implications with this storage medium. Thanks!


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