unregister_netdevice: waiting for sit0 to become free. Usage count = 0
loop7: detected capacity change from 0 to 2048
I/O error, dev loop6, sector 29056 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
FAT-fs (loop6): bread failed, FSINFO block (sector = 7264)
EXT4-fs (loop7): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
I/O error, dev loop6, sector 29056 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
ext4 filesystem being mounted at /syzkaller-testdir786225006/syzkaller.y7M1c9/8/file0 supports timestamps until 2038-01-19 (0x7fffffff)
FAT-fs (loop6): bread failed, FSINFO block (sector = 7264)
=======================================================
WARNING: The mand mount option has been deprecated and
         and is ignored by this kernel. Remove the mand
         option from the mount to silence this warning.
=======================================================
EXT4-fs (loop7): unmounting filesystem 00000000-0000-0000-0000-000000000000.