BUG: MAX_LOCK_DEPTH too low!
turning off the locking correctness validator.
depth: 48 max: 48!
48 locks held by syz.1.295/7761:
#0: ffff88802d5440e0 (&type->s_umount_key#93){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff88802d5440e0 (&type->s_umount_key#93){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff8880661042d8 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:151 [inline]
#1: ffff8880661042d8 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_read_lock include/linux/srcu.h:250 [inline]
#1: ffff8880661042d8 (&c->btree_trans_barrier){.+.+}-{0:0}, at: __bch2_trans_get+0x7f8/0xe40 fs/bcachefs/btree_iter.c:3193
#2: ffff888066126750 (&c->gc_lock){.+.+}-{3:3}, at: bch2_btree_update_start+0x68d/0x1500 fs/bcachefs/btree_update_interior.c:1195
#3: ffff88806611dc78 (&wp->lock){+.+.}-{3:3}, at: bch2_trans_mutex_lock_norelock fs/bcachefs/alloc_foreground.c:41 [inline]
#3: ffff88806611dc78 (&wp->lock){+.+.}-{3:3}, at: writepoint_find fs/bcachefs/alloc_foreground.c:1302 [inline]
#3: ffff88806611dc78 (&wp->lock){+.+.}-{3:3}, at: bch2_alloc_sectors_start_trans+0x2d5/0x1f60 fs/bcachefs/alloc_foreground.c:1410
#4: ffff88807e505870 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#4: ffff88807e505870 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#5: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#5: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#6: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#6: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#7: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#7: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#8: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#8: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#9: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#9: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#10: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#10: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#11: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#11: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#12: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#12: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#13: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#13: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#14: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#14: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#15: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#15: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#16: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#16: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#17: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#17: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#18: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#18: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#19: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#19: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#20: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#20: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#21: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#21: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#22: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#22: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#23: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#23: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#24: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#24: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#25: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#25: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#26: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#26: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#27: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#27: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#28: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#28: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#29: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#29: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#30: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#30: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#31: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#31: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#32: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#32: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#33: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#33: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#34: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#34: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#35: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#35: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#36: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#36: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#37: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#37: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#38: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_trylock_type fs/bcachefs/six.h:207 [inline]
#38: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: btree_node_lock fs/bcachefs/btree_locking.h:288 [inline]
#38: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: btree_path_lock_root fs/bcachefs/btree_iter.c:757 [inline]
#38: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: bch2_btree_path_traverse_one+0xa44/0x2930 fs/bcachefs/btree_iter.c:1177
#39: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_trylock_type fs/bcachefs/six.h:207 [inline]
#39: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: btree_node_lock fs/bcachefs/btree_locking.h:288 [inline]
#39: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: btree_path_lock_root fs/bcachefs/btree_iter.c:757 [inline]
#39: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: bch2_btree_path_traverse_one+0xa44/0x2930 fs/bcachefs/btree_iter.c:1177
#40: ffff88807e311e00 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#40: ffff88807e311e00 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#41: ffff88807e310b30 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#41: ffff88807e310b30 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#42: ffff88807e311498 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#42: ffff88807e311498 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#43: ffff88807e3119f8 (&dev->mutex){....}-{3:3}, at: six_relock_type fs/bcachefs/six.h:289 [inline]
#43: ffff88807e3119f8 (&dev->mutex){....}-{3:3}, at: __bch2_btree_node_relock+0x142/0x9c0 fs/bcachefs/btree_locking.c:507
#44: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: six_trylock_type fs/bcachefs/six.h:207 [inline]
#44: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: btree_node_lock fs/bcachefs/btree_locking.h:288 [inline]
#44: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: btree_path_lock_root fs/bcachefs/btree_iter.c:757 [inline]
#44: ffff88807e507070 (&dev->mutex){....}-{3:3}, at: bch2_btree_path_traverse_one+0xa44/0x2930 fs/bcachefs/btree_iter.c:1177
#45: ffff888029888a18 (&p->pi_lock){-.-.}-{2:2}, at: class_raw_spinlock_irqsave_constructor include/linux/spinlock.h:551 [inline]
#45: ffff888029888a18 (&p->pi_lock){-.-.}-{2:2}, at: try_to_wake_up+0xb0/0x1470 kernel/sched/core.c:4051
#46: ffff8880b953e818 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:560
#47: ffffe8ffffd68808 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_change+0xfd/0x280 kernel/sched/psi.c:913
INFO: lockdep is turned off.
CPU: 1 PID: 7761 Comm: syz.1.295 Not tainted 6.10.0-syzkaller-04472-g51835949dda3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
__lock_acquire+0x10c3/0x1fd0
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5753
do_write_seqcount_begin_nested include/linux/seqlock.h:469 [inline]
do_write_seqcount_begin include/linux/seqlock.h:495 [inline]
psi_group_change+0x1c3/0x11c0 kernel/sched/psi.c:791
psi_task_change+0xfd/0x280 kernel/sched/psi.c:913
psi_enqueue kernel/sched/stats.h:143 [inline]
enqueue_task+0x2aa/0x300 kernel/sched/core.c:1975
activate_task kernel/sched/core.c:2009 [inline]
ttwu_do_activate+0x1d1/0x7e0 kernel/sched/core.c:3582
ttwu_queue kernel/sched/core.c:3846 [inline]
try_to_wake_up+0x884/0x1470 kernel/sched/core.c:4167
hrtimer_wakeup+0x62/0x80 kernel/time/hrtimer.c:1925
__run_hrtimer kernel/time/hrtimer.c:1689 [inline]
__hrtimer_run_queues+0x59b/0xd50 kernel/time/hrtimer.c:1753
hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1815
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
__sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1043
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd8/0x140 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 ce 09 6b f6 f6 44 24 21 02 75 52 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 c3 83 d7 f5 65 8b 05 34 96 75 74 85 c0 74 43 48 c7 04 24 0e 36
RSP: 0018:ffffc90003e95120 EFLAGS: 00000206
RAX: c5168b2448729b00 RBX: 1ffff920007d2a28 RCX: ffffffff8173001a
RDX: dffffc0000000000 RSI: ffffffff8bcac920 RDI: 0000000000000001
RBP: ffffc90003e951b0 R08: ffffffff92f9970f R09: 1ffffffff25f32e1
R10: dffffc0000000000 R11: fffffbfff25f32e2 R12: dffffc0000000000
R13: 1ffff920007d2a24 R14: ffffc90003e95140 R15: 0000000000000246
__debug_check_no_obj_freed lib/debugobjects.c:999 [inline]
debug_check_no_obj_freed+0x561/0x580 lib/debugobjects.c:1020
slab_free_hook mm/slub.c:2163 [inline]
slab_free mm/slub.c:4438 [inline]
kfree+0x10f/0x360 mm/slub.c:4559
krealloc_noprof+0xcf/0x120
bch2_printbuf_make_room+0x1f1/0x350 fs/bcachefs/printbuf.c:59
bch2_prt_printf+0x267/0x6d0 fs/bcachefs/printbuf.c:186
bch2_btree_path_to_text_short+0x288/0x390 fs/bcachefs/btree_iter.c:1486
__bch2_trans_paths_to_text+0xe5/0x180 fs/bcachefs/btree_iter.c:1541
bch2_trans_update_max_paths+0x16e/0x420 fs/bcachefs/btree_iter.c:1577
btree_path_alloc+0x88a/0xaa0 fs/bcachefs/btree_iter.c:1674
btree_path_clone fs/bcachefs/btree_iter.c:1235 [inline]
__bch2_btree_path_make_mut+0x134/0x570 fs/bcachefs/btree_iter.c:1249
bch2_btree_path_make_mut fs/bcachefs/btree_iter.h:196 [inline]
__bch2_btree_path_set_pos+0x382/0x1750 fs/bcachefs/btree_iter.c:1264
bch2_btree_path_set_pos fs/bcachefs/btree_iter.h:211 [inline]
__bch2_btree_iter_peek fs/bcachefs/btree_iter.c:2176 [inline]
bch2_btree_iter_peek_upto+0xb54/0x7090 fs/bcachefs/btree_iter.c:2280
bch2_btree_iter_peek_upto_type fs/bcachefs/btree_iter.h:641 [inline]
bch2_bucket_alloc_freelist fs/bcachefs/alloc_foreground.c:491 [inline]
bch2_bucket_alloc_trans+0x111d/0x3b30 fs/bcachefs/alloc_foreground.c:649
bch2_bucket_alloc_set_trans+0x4f9/0xcf0 fs/bcachefs/alloc_foreground.c:810
__open_bucket_add_buckets+0x11ed/0x1c80 fs/bcachefs/alloc_foreground.c:1058
open_bucket_add_buckets+0x174/0x230 fs/bcachefs/alloc_foreground.c:1102
bch2_alloc_sectors_start_trans+0xcaf/0x1f60
__bch2_btree_node_alloc fs/bcachefs/btree_update_interior.c:333 [inline]
bch2_btree_reserve_get+0x5f5/0x18d0 fs/bcachefs/btree_update_interior.c:547
bch2_btree_update_start+0x1187/0x1500 fs/bcachefs/btree_update_interior.c:1264
bch2_btree_split_leaf+0x12c/0x810 fs/bcachefs/btree_update_interior.c:1851
bch2_trans_commit_error+0x200/0x1210 fs/bcachefs/btree_trans_commit.c:918
__bch2_trans_commit+0x6e6c/0x88e0 fs/bcachefs/btree_trans_commit.c:1138
bch2_trans_commit fs/bcachefs/btree_update.h:170 [inline]
bch2_set_quota+0x958/0xdf0 fs/bcachefs/quota.c:872
quota_setquota+0x6dc/0x850 fs/quota/quota.c:310
__do_sys_quotactl fs/quota/quota.c:961 [inline]
__se_sys_quotactl+0x2c4/0xa30 fs/quota/quota.c:917
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f48ac175ad9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f48acf17048 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3
RAX: ffffffffffffffda RBX: 00007f48ac304110 RCX: 00007f48ac175ad9
RDX: 0000000000000000 RSI: 0000000020000000 RDI: ffffffff80000801
RBP: 00007f48ac1e4e5d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020000080 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f48ac304110 R15: 00007ffea6a44968
----------------
Code disassembly (best guess):
0: 9c pushf
1: 8f 44 24 20 pop 0x20(%rsp)
5: 42 80 3c 23 00 cmpb $0x0,(%rbx,%r12,1)
a: 74 08 je 0x14
c: 4c 89 f7 mov %r14,%rdi
f: e8 ce 09 6b f6 call 0xf66b09e2
14: f6 44 24 21 02 testb $0x2,0x21(%rsp)
19: 75 52 jne 0x6d
1b: 41 f7 c7 00 02 00 00 test $0x200,%r15d
22: 74 01 je 0x25
24: fb sti
25: bf 01 00 00 00 mov $0x1,%edi
* 2a: e8 c3 83 d7 f5 call 0xf5d783f2 <-- trapping instruction
2f: 65 8b 05 34 96 75 74 mov %gs:0x74759634(%rip),%eax # 0x7475966a
36: 85 c0 test %eax,%eax
38: 74 43 je 0x7d
3a: 48 rex.W
3b: c7 .byte 0xc7
3c: 04 24 add $0x24,%al
3e: 0e (bad)
3f: 36 ss