Hi folks, I just got this warning on boot from a test VM running an ext3 root filesystem: [ 14.874951] ------------[ cut here ]------------ [ 14.876447] WARNING: CPU: 10 PID: 3359 at fs/inode.c:280 drop_nlink+0x3e/0x50 [ 14.878520] Modules linked in: [ 14.880065] CPU: 10 PID: 3359 Comm: mv Not tainted 4.7.0-rc4-dgc+ #821 [ 14.883062] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014 [ 14.886648] 0000000000000000 ffff8800bad63c90 ffffffff817f1321 0000000000000000 [ 14.888942] 0000000000000000 ffff8800bad63cd0 ffffffff810b3531 000001183750906c [ 14.891613] ffff8800bb3095b0 ffff8800bad63d48 ffff88033750906c 0000000000000000 [ 14.893635] Call Trace: [ 14.894096] [<ffffffff817f1321>] dump_stack+0x63/0x82 [ 14.895387] [<ffffffff810b3531>] __warn+0xd1/0xf0 [ 14.896709] [<ffffffff810b361d>] warn_slowpath_null+0x1d/0x20 [ 14.898421] [<ffffffff8121339e>] drop_nlink+0x3e/0x50 [ 14.899737] [<ffffffff812d7d7b>] ext4_dec_count.isra.26+0x1b/0x30 [ 14.901360] [<ffffffff812dd8a2>] ext4_rename+0x4d2/0x880 [ 14.903025] [<ffffffff8177bde8>] ? security_capable+0x48/0x60 [ 14.904524] [<ffffffff812ddc6d>] ext4_rename2+0x1d/0x30 [ 14.905833] [<ffffffff8120676d>] vfs_rename+0x5fd/0x900 [ 14.907163] [<ffffffff81209738>] SyS_rename+0x398/0x3b0 [ 14.908496] [<ffffffff81e3c2f2>] entry_SYSCALL_64_fastpath+0x1a/0xa4 [ 14.910251] ---[ end trace b59a7c09fe84eaba ]--- It's from the root device: 16 0 8:1 / / rw,relatime shared:1 - ext3 /dev/root rw,errors=remount-ro,data=ordered It happened during boot after I had to forcible terminate the VM from the host due to it becoming unresponsive while testing XFS code changes on a test filesystem. The mount messages were: [ 3.187990] EXT4-fs (sda1): mounting ext3 file system using the ext4 subsystem [ 3.191331] EXT4-fs (sda1): INFO: recovery required on readonly filesystem [ 3.193546] EXT4-fs (sda1): write access will be enabled during recovery [ 3.448499] EXT4-fs (sda1): orphan cleanup on readonly fs [ 3.450334] EXT4-fs (sda1): 1 orphan inode deleted [ 3.451762] EXT4-fs (sda1): recovery complete [ 3.462121] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null) It's a 10GB fs, 85% full. I can't reproduce it and I've got no more information in the logs about the problem.... Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
