rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P12745/1:b..l P5621/1:b..l P12757/1:b..l P12759/3:b..l P12750/1:b..l
rcu: (detected by 0, t=10504 jiffies, g=67625, q=388 ncpus=2)
task:syz.1.1848 state:R running task stack:25464 pid:12750 tgid:12748 ppid:5627 task_flags:0x400040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5388 [inline]
__schedule+0x1821/0x5740 kernel/sched/core.c:7189
preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7513
irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
irqentry_exit+0x14f/0x760 kernel/entry/common.c:164
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:rcu_is_watching+0x72/0xb0 kernel/rcu/tree.c:754
Code: a9 3a 93 49 03 1e 48 89 d8 48 c1 e8 03 42 0f b6 04 38 84 c0 75 34 8b 03 65 ff 0d c9 91 8e 11 74 11 83 e0 04 c1 e8 02 5b 41 5e <41> 5f e9 92 62 65 ff cc e8 f1 bc 88 ff eb e8 48 c7 c7 00 32 96 8e
RSP: 0018:ffffc90003427060 EFLAGS: 00000212
RAX: 0000000000000001 RBX: ffffffff90cfe001 RCX: 0000000080000001
RDX: ffffc90003427101 RSI: ffffffff8c28b640 RDI: ffffffff8c28b600
RBP: dffffc0000000000 R08: ffffc90003427c58 R09: ffffc900034271f8
R10: dffffc0000000000 R11: fffff52000684e41 R12: ffffc90003427c68
R13: ffffffff8176f256 R14: ffffffff8e95cca0 R15: dffffc0000000000
trace_lock_release include/trace/events/lock.h:69 [inline]
lock_release+0x4b/0x3c0 kernel/locking/lockdep.c:5879
rcu_lock_release include/linux/rcupdate.h:310 [inline]
rcu_read_unlock include/linux/rcupdate.h:869 [inline]
class_rcu_destructor include/linux/rcupdate.h:1181 [inline]
unwind_next_frame+0x1bba/0x2550 arch/x86/kernel/unwind_orc.c:709
arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
save_stack+0x122/0x230 mm/page_owner.c:165
__set_page_owner+0x8d/0x4c0 mm/page_owner.c:341
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1858
prep_new_page mm/page_alloc.c:1866 [inline]
get_page_from_freelist+0x24ba/0x2540 mm/page_alloc.c:3946
__alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5226
alloc_pages_mpol+0x235/0x490 mm/mempolicy.c:2490
folio_alloc_mpol_noprof+0x39/0x160 mm/mempolicy.c:2509
shmem_alloc_folio mm/shmem.c:1933 [inline]
shmem_alloc_and_add_folio+0x442/0xf80 mm/shmem.c:1975
shmem_get_folio_gfp+0x5a9/0x1670 mm/shmem.c:2564
shmem_get_folio mm/shmem.c:2670 [inline]
shmem_write_begin+0x16c/0x330 mm/shmem.c:3303
generic_perform_write+0x2e2/0x8f0 mm/filemap.c:4325
shmem_file_write_iter+0xf8/0x120 mm/shmem.c:3478
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x61d/0xb90 fs/read_write.c:688
ksys_write+0x150/0x270 fs/read_write.c:740
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0f4c35d68e
RSP: 002b:00007f0f4d2f0da8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f0f4d2f16c0 RCX: 00007f0f4c35d68e
RDX: 0000000001000000 RSI: 00007f0f42000000 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
R13: 00007f0f4d2f0ee0 R14: 00007f0f4d2f0ea0 R15: 00007f0f42000000
task:dhcpcd-run-hook state:R running task stack:27264 pid:12759 tgid:12759 ppid:12755 task_flags:0x400040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5388 [inline]
__schedule+0x1821/0x5740 kernel/sched/core.c:7189
preempt_schedule_common+0x82/0xd0 kernel/sched/core.c:7370
preempt_schedule_thunk+0x16/0x30 arch/x86/entry/thunk.S:12
__raw_spin_unlock include/linux/spinlock_api_smp.h:169 [inline]
_raw_spin_unlock+0x3f/0x50 kernel/locking/spinlock.c:190
spin_unlock include/linux/spinlock.h:390 [inline]
filemap_map_pages+0x1a2a/0x2100 mm/filemap.c:3942
do_fault_around mm/memory.c:5867 [inline]
do_read_fault mm/memory.c:5900 [inline]
do_fault mm/memory.c:6043 [inline]
do_pte_missing+0x1f38/0x33f0 mm/memory.c:4566
handle_pte_fault mm/memory.c:6427 [inline]
__handle_mm_fault mm/memory.c:6565 [inline]
handle_mm_fault+0x1bd9/0x3170 mm/memory.c:6734
do_user_addr_fault+0xa73/0x1340 arch/x86/mm/fault.c:1334
handle_page_fault arch/x86/mm/fault.c:1474 [inline]
exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1527
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0033:0x7feeee4ae9d0
RSP: 002b:00007ffead0c4468 EFLAGS: 00010202
RAX: 0000562bbbe6e910 RBX: 0000562bbbe7cfc0 RCX: 0000562ed95cca00
RDX: 00007feeee644460 RSI: 0000000000000001 RDI: 00007ffead0c5810
RBP: 0000000000000000 R08: 0000000000000020 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000562bbbe6e910
R13: 0000562bbbe6ec30 R14: 0000000000000002 R15: 0000000000000000
task:syz.3.1865 state:R running task stack:25464 pid:12757 tgid:12756 ppid:5622 task_flags:0x400140 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5388 [inline]
__schedule+0x1821/0x5740 kernel/sched/core.c:7189
preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7513
irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
irqentry_exit+0x14f/0x760 kernel/entry/common.c:164
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:rcu_is_watching+0x0/0xb0 kernel/rcu/tree.c:748
Code: c7 c7 a0 23 96 8e e8 cf 7d 44 03 eb cc 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 41 57 41 56 53 65 ff 05 20 92 8e 11 e8 5b 62 fe 09 89
RSP: 0018:ffffc90004737410 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffffffff81aafa1e RCX: ffff88801db2dc40
RDX: 00000000b5c0162b RSI: ffffffff8e21f706 RDI: ffffffff8c28b660
RBP: dffffc0000000000 R08: ffffffff8176f256 R09: ffffffff8e95cca0
R10: dffffc0000000000 R11: ffffffff81b0f020 R12: ffffc90004737520
R13: 1ffff920008e6e9d R14: ffffc900047374e8 R15: ffffffff8176f256
rcu_read_lock include/linux/rcupdate.h:839 [inline]
class_rcu_constructor include/linux/rcupdate.h:1181 [inline]
unwind_next_frame+0xd5/0x2550 arch/x86/kernel/unwind_orc.c:495
arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
kasan_save_stack+0x3e/0x60 mm/kasan/common.c:57
kasan_record_aux_stack+0xbd/0xd0 mm/kasan/generic.c:556
__call_rcu_common kernel/rcu/tree.c:3131 [inline]
call_rcu+0xee/0x890 kernel/rcu/tree.c:3251
slab_free_hook mm/slub.c:2653 [inline]
slab_free mm/slub.c:6250 [inline]
kmem_cache_free+0x462/0x650 mm/slub.c:6377
remove_vma mm/vma.c:473 [inline]
vms_complete_munmap_vmas+0x929/0xc60 mm/vma.c:1361
do_vmi_align_munmap+0x3b7/0x4b0 mm/vma.c:1604
do_vmi_munmap+0x252/0x2d0 mm/vma.c:1652
__vm_munmap+0x22c/0x3d0 mm/vma.c:3285
__do_sys_munmap mm/mmap.c:1079 [inline]
__se_sys_munmap mm/mmap.c:1076 [inline]
__x64_sys_munmap+0x60/0x70 mm/mmap.c:1076
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa2e5d9cc87
RSP: 002b:00007fa2e6c5fe08 EFLAGS: 00000246 ORIG_RAX: 000000000000000b
RAX: ffffffffffffffda RBX: 0000000000100000 RCX: 00007fa2e5d9cc87
RDX: 0000000000100000 RSI: 0000000008400000 RDI: 00007fa2dba00000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
R13: 00007fa2e6c5fee0 R14: 00007fa2e6c5fea0 R15: 00007fa2dba00000
task:syz-executor state:R running task stack:22168 pid:5621 tgid:5621 ppid:5614 task_flags:0x400140 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5388 [inline]
__schedule+0x1821/0x5740 kernel/sched/core.c:7189
preempt_schedule_common+0x82/0xd0 kernel/sched/core.c:7370
preempt_schedule_thunk+0x16/0x30 arch/x86/entry/thunk.S:12
__raw_spin_unlock include/linux/spinlock_api_smp.h:169 [inline]
_raw_spin_unlock+0x3f/0x50 kernel/locking/spinlock.c:190
spin_unlock include/linux/spinlock.h:390 [inline]
copy_pte_range mm/memory.c:1347 [inline]
copy_pmd_range+0x4f04/0x5970 mm/memory.c:1408
copy_pud_range mm/memory.c:1445 [inline]
copy_p4d_range mm/memory.c:1469 [inline]
copy_page_range+0xbe8/0x11f0 mm/memory.c:1555
dup_mmap+0xf40/0x1d90 mm/mmap.c:1840
dup_mm kernel/fork.c:1534 [inline]
copy_mm+0x13b/0x4a0 kernel/fork.c:1586
copy_process+0x1f1c/0x4440 kernel/fork.c:2264
kernel_clone+0x284/0x8f0 kernel/fork.c:2721
__do_sys_clone kernel/fork.c:2862 [inline]
__se_sys_clone kernel/fork.c:2846 [inline]
__x64_sys_clone+0x1b6/0x230 kernel/fork.c:2846
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ffb291c58d2
RSP: 002b:00007ffdaf063650 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007ffdaf063650 RCX: 00007ffb291c58d2
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 00007ffdaf0637dc R08: 0000000000000000 R09: 0000000000000001
R10: 0000555575a4e7d0 R11: 0000000000000246 R12: 0000000000000001
R13: 00000000000927c0 R14: 00000000000a443a R15: 00007ffdaf063830
task:syz.2.1861 state:R running task stack:25464 pid:12745 tgid:12743 ppid:5624 task_flags:0x400140 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5388 [inline]
__schedule+0x1821/0x5740 kernel/sched/core.c:7189
preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7513
irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
irqentry_exit+0x14f/0x760 kernel/entry/common.c:164
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:lock_acquire+0x221/0x350 kernel/locking/lockdep.c:5872
Code: ff ff ff e8 f1 6d 07 0a f7 44 24 08 00 02 00 00 0f 84 3a ff ff ff 65 48 8b 05 db b8 97 11 48 3b 44 24 58 75 33 fb 48 83 c4 60 <5b> 41 5c 41 5d 41 5e 41 5f 5d e9 ab 89 6e ff cc 48 8d 3d 88 73 92
RSP: 0018:ffffc900034477e8 EFLAGS: 00000286
RAX: 8be39a1e6d0c5a00 RBX: 0000000000000000 RCX: 0000000000000046
RDX: 00000000ccedb704 RSI: ffffffff8e21f706 RDI: ffffffff8c28b660
RBP: ffffffff823a1199 R08: ffffffff823a1199 R09: ffffffff8e95cca0
R10: dffffc0000000000 R11: fffffbfff206199f R12: 0000000000000002
R13: ffffffff8e95cca0 R14: 0000000000000000 R15: 0000000000000246
rcu_lock_acquire include/linux/rcupdate.h:300 [inline]
rcu_read_lock include/linux/rcupdate.h:838 [inline]
percpu_ref_put_many include/linux/percpu-refcount.h:330 [inline]
percpu_ref_put+0x35/0x180 include/linux/percpu-refcount.h:351
css_put include/linux/cgroup_refcnt.h:79 [inline]
__mem_cgroup_charge+0x56/0x80 mm/memcontrol.c:5033
mem_cgroup_charge include/linux/memcontrol.h:644 [inline]
shmem_alloc_and_add_folio+0x7cd/0xf80 mm/shmem.c:1985
shmem_get_folio_gfp+0x5a9/0x1670 mm/shmem.c:2564
shmem_get_folio mm/shmem.c:2670 [inline]
shmem_write_begin+0x16c/0x330 mm/shmem.c:3303
generic_perform_write+0x2e2/0x8f0 mm/filemap.c:4325
shmem_file_write_iter+0xf8/0x120 mm/shmem.c:3478
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x61d/0xb90 fs/read_write.c:688
ksys_write+0x150/0x270 fs/read_write.c:740
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5efc75d68e
RSP: 002b:00007f5efd580da8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f5efd5816c0 RCX: 00007f5efc75d68e
RDX: 0000000001000000 RSI: 00007f5ef2400000 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
R13: 00007f5efd580ee0 R14: 00007f5efd580ea0 R15: 00007f5ef2400000
rcu: rcu_preempt kthread starved for 10504 jiffies! g67625 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:R running task stack:27400 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5388 [inline]
__schedule+0x1821/0x5740 kernel/sched/core.c:7189
preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7513
irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
irqentry_exit+0x14f/0x760 kernel/entry/common.c:164
asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:get_timer_cpu_base kernel/time/timer.c:925 [inline]
RIP: 0010:get_timer_base kernel/time/timer.c:944 [inline]
RIP: 0010:lock_timer_base kernel/time/timer.c:1003 [inline]
RIP: 0010:__try_to_del_timer_sync kernel/time/timer.c:1459 [inline]
RIP: 0010:__timer_delete_sync+0x22e/0x520 kernel/time/timer.c:1621
Code: 90 b7 26 8e 4c 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 08 4c 89 ff e8 b9 23 7f 00 48 69 c5 c0 10 00 00 <4c> 8d b0 40 c0 39 93 4d 03 37 4c 89 f7 e8 30 ef f9 09 49 89 c7 48
RSP: 0018:ffffc90000157a78 EFLAGS: 00000246
RAX: 00000000000010c0 RBX: ffffc90000157b20 RCX: dffffc0000000000
RDX: ffff88801d6f0000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000001 R08: ffffffff9030ccf7 R09: 1ffffffff206199e
R10: dffffc0000000000 R11: fffffbfff206199f R12: 1ffff9200002af64
R13: 0000000007c00001 R14: 0000000000000001 R15: ffffffff8e26b798
schedule_timeout+0x160/0x2c0 kernel/time/sleep_timeout.c:100
rcu_gp_fqs_loop+0x312/0x11d0 kernel/rcu/tree.c:2095
rcu_gp_kthread+0x9e/0x2b0 kernel/rcu/tree.c:2297
kthread+0x389/0x470 kernel/kthread.c:436
ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 12760 Comm: syz.4.1860 Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:advance_sched+0x3d1/0xc20 net/sched/sch_taprio.c:957
Code: 00 00 49 81 c6 28 01 00 00 4c 89 f0 48 c1 e8 03 80 3c 28 00 74 08 4c 89 f7 e8 1b 33 78 f8 48 8b 44 24 08 4c 8b a0 28 01 00 00 <4c> 8d b8 30 01 00 00 4c 89 f8 48 c1 e8 03 80 3c 28 00 74 08 4c 89
RSP: 0018:ffffc90000a08d10 EFLAGS: 00000046
RAX: ffff888053c01c00 RBX: ffff888053fde940 RCX: ffff88802db61ec0
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 18b183ee6fe6959e
RBP: dffffc0000000000 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52000141190 R12: 18b183ee6fe6959e
R13: ffff888021add000 R14: ffff888053c01d28 R15: ffff888053c01d10
FS: 00007f44b087c6c0(0000) GS:ffff888125389000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f44b087bff8 CR3: 0000000078daa000 CR4: 0000000000350ef0
Call Trace:
__run_hrtimer kernel/time/hrtimer.c:1930 [inline]
__hrtimer_run_queues+0x3c0/0xa20 kernel/time/hrtimer.c:1994
hrtimer_interrupt+0x44b/0x950 kernel/time/hrtimer.c:2113
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline]
__sysvec_apic_timer_interrupt+0x102/0x430 arch/x86/kernel/apic/apic.c:1067
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline]
sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1061
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:179 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x47/0x80 kernel/locking/spinlock.c:198
Code: f7 e8 2d 8b f6 f5 f7 c3 00 02 00 00 74 05 e8 20 20 22 f6 9c 58 a9 00 02 00 00 75 27 f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 e4 09 e8 f5 65 8b 05 0d a0 8d 07 85 c0 74 18 5b 41 5e e9 dc 70
RSP: 0018:ffffc90003417d28 EFLAGS: 00000206
RAX: 0000000000000006 RBX: 0000000000000202 RCX: 0000000080000001
RDX: 0000000000000000 RSI: ffffffff8dfac14f RDI: 0000000000000001
RBP: ffffc90003417e30 R08: ffffffff9030ccf7 R09: 1ffffffff206199e
R10: dffffc0000000000 R11: fffffbfff206199f R12: dffffc0000000000
R13: 0000000000000000 R14: ffffffff9a491818 R15: ffffc90003417e60
class_raw_spinlock_irqsave_destructor include/linux/spinlock.h:571 [inline]
do_settimeofday64+0x336/0x570 kernel/time/timekeeping.c:1584
__do_sys_clock_settime kernel/time/posix-timers.c:1124 [inline]
__se_sys_clock_settime kernel/time/posix-timers.c:1108 [inline]
__x64_sys_clock_settime+0x253/0x2a0 kernel/time/posix-timers.c:1108
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f44af99ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f44b087c028 EFLAGS: 00000246 ORIG_RAX: 00000000000000e3
RAX: ffffffffffffffda RBX: 00007f44afc16180 RCX: 00007f44af99ce59
RDX: 0000000000000000 RSI: 0000200000000040 RDI: 0000000000000000
RBP: 00007f44afa32d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f44afc16218 R14: 00007f44afc16180 R15: 00007ffee4fc4428