loop7: detected capacity change from 0 to 128
unregister_netdevice: waiting for lo to become free. Usage count = 0
loop7: detected capacity change from 0 to 128
loop3: detected capacity change from 0 to 640
EXT4-fs (loop3): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
ext4 filesystem being mounted at /syzkaller-testdir537221339/syzkaller.9ZcLv9/15/file0 supports timestamps until 2038-01-19 (0x7fffffff)
EXT4-fs (loop3): unmounting filesystem 00000000-0000-0000-0000-000000000000.
loop3: detected capacity change from 0 to 640
EXT4-fs (loop3): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
ext4 filesystem being mounted at /syzkaller-testdir537221339/syzkaller.9ZcLv9/15/file0 supports timestamps until 2038-01-19 (0x7fffffff)
EXT4-fs (loop3): unmounting filesystem 00000000-0000-0000-0000-000000000000.