EXT4 File System patition damaged after power shutdown

[liweihua]

Hello，

I'm from NeuSoft，and our customer is ChangAn Automobile.
We encountered this problem during the period of mass product.
Our BSP is android_jb4.3_1.1.0-ga.
CPU is imx6dl.
The error log is as follows:
[ 8.452302] EXT4-fs error (device mmcblk0p4): ext4_mb_generate_buddy:736: group 24, 1131 blocks in bitmap, 1141 in gd
[ 8.463205] Aborting journal on device mmcblk0p4-8.
[ 8.499344] Kernel panic - not syncing: EXT4-fs (device mmcblk0p4): panic forced after error
[ 8.499354]
[ 8.509392] CPU1: stopping
[ 8.512105] Backtrace:
[ 8.514568] Function entered at [<c0040044>] from [<c045a8d8>]
[ 8.520405] r6:c0034bfc r5:d543e000 r4:c0529cd8 r3:00000000
[ 8.526123] Function entered at [<c045a8c0>] from [<c00363d0>]
[ 8.531959] Function entered at [<c00361f4>] from [<c003c06c>]
[ 8.537798] Exception stack(0xd543ffb0 to 0xd543fff8)
[ 8.542856] ffa0: 00000801 0000002d 0000000a 0000001c
[ 8.551043] ffc0: 00008000 00004d93 000008d4 405d91b8 405d86e0 0000095e 00000001 4cfa147e
[ 8.559229] ffe0: 0000015d 40a2d9a8 401839d0 40185830 20030010 ffffffff

Does this issue match with linux kernel bug 42723？
Bug 42723 – EXT4-fs error: ext4_mb_generate_buddy

Could please give me some other advise?

Best regards.

Liweihua

[liweihua]

Hello Victor，

Thanks for reply，e2fsck works well.

Liweihua

[b36401]

As far as I know the issue you told is fixed in latest 3.x kernels and does not present in 4.1.
Please try to perform fsck on the filesystem.

Also you can try to move the filesystem to ext3 FS and check if the issue go away.

Have a great day,
Victor

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