BUG: MAX_STACK_TRACE_ENTRIES too low!
turning off the locking correctness validator.
CPU: 0 PID: 5005 Comm: syz-executor.0 Not tainted 5.1.0-rc2 #36
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 save_trace kernel/locking/lockdep.c:467 [inline]
 save_trace.cold+0x14/0x19 kernel/locking/lockdep.c:437
 mark_lock+0x2fb/0x1380 kernel/locking/lockdep.c:3410
 mark_irqflags kernel/locking/lockdep.c:3313 [inline]
 __lock_acquire+0xf2c/0x3fb0 kernel/locking/lockdep.c:3653
 lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:4211
 down_write_nested+0x3c/0x90 kernel/locking/rwsem.c:193
 alloc_super+0x158/0x890 fs/super.c:228
 sget_userns+0xf1/0x560 fs/super.c:609
 sget+0x10c/0x150 fs/super.c:660
 mount_bdev+0xff/0x3c0 fs/super.c:1319
 hfsplus_mount+0x35/0x40 fs/hfsplus/super.c:648
 legacy_get_tree+0xf2/0x200 fs/fs_context.c:584
 vfs_get_tree+0x123/0x450 fs/super.c:1481
 do_new_mount fs/namespace.c:2622 [inline]
 do_mount+0x1436/0x2c40 fs/namespace.c:2942
 ksys_mount+0xdb/0x150 fs/namespace.c:3151
 __do_sys_mount fs/namespace.c:3165 [inline]
 __se_sys_mount fs/namespace.c:3162 [inline]
 __x64_sys_mount+0xbe/0x150 fs/namespace.c:3162
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45ac7a
Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 2d 8e fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 0a 8e fb ff c3 66 0f 1f 84 00 00 00 00 00
RSP: 002b:00007f6f2c31ea88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f6f2c31eb40 RCX: 000000000045ac7a
RDX: 00007f6f2c31eae0 RSI: 0000000020000200 RDI: 00007f6f2c31eb00
RBP: 0000000000000000 R08: 00007f6f2c31eb40 R09: 00007f6f2c31eae0
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000003
R13: 00000000004c6a8e R14: 00000000004dc088 R15: 00000000ffffffff
hfsplus: unable to find HFS+ superblock
kobject: 'loop0' (00000000501f1bea): kobject_uevent_env
kobject: 'loop0' (00000000501f1bea): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop0' (00000000501f1bea): kobject_uevent_env
kobject: 'loop0' (00000000501f1bea): fill_kobj_path: path = '/devices/virtual/block/loop0'