perf_event_open(0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0)
syz_mount_image$nfs4(0x0, 0x0, 0x0, 0x8800000, &(0x7f0000000b40)=[{&(0x7f0000000280)=',', 0x1}, {&(0x7f0000000380)='z', 0x1, 0x2}], 0x0, 0x0)