WARNING: missing regs for base reg R10 at ip ___perf_sw_event+0x28/0x480 syzkaller/managers/linux-4-14/kernel/kernel/events/core.c:7788 f2fs_msg: 6 callbacks suppressed F2FS-fs (loop2): Magic Mismatch, valid(0xf2f52010) - read(0x8b5380f7) F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock F2FS-fs (loop2): Unable to read 2th superblock F2FS-fs (loop2): Magic Mismatch, valid(0xf2f52010) - read(0x8b5380f7) F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock F2FS-fs (loop2): Unable to read 2th superblock F2FS-fs (loop2): Magic Mismatch, valid(0xf2f52010) - read(0x8b5380f7) F2FS-fs (loop2): Can't find valid F2FS filesystem in 1th superblock F2FS-fs (loop2): Unable to read 2th superblock F2FS-fs (loop2): Magic Mismatch, valid(0xf2f52010) - read(0x8b5380f7) (syz-executor.2,23237,1):ocfs2_parse_options:1484 ERROR: Unrecognized mount option "/dev/vmci" or missing value (syz-executor.2,23237,1):ocfs2_fill_super:1217 ERROR: status = -22 hfsplus: unable to parse mount options