rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 1-...!: (1 GPs behind) idle=66bc/1/0x4000000000000000 softirq=124191/124192 fqs=3
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P22855/1:b..l P22857/2:b..l
rcu: (detected by 0, t=10505 jiffies, g=118501, q=528 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 22841 Comm: syz.6.4449 Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x7e/0x110 kernel/locking/spinlock.c:194
Code: f3 49 bc 00 00 00 00 00 fc ff df 4b 89 04 27 48 83 c7 18 48 8b 75 08 e8 a0 56 40 f6 4c 89 f7 e8 d8 cd 40 f6 f7 c3 00 02 00 00 <74> 05 e8 2b 39 6b f6 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6
RSP: 0018:ffffc90000a08c80 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 0000000000000016 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff99b56f28
RBP: ffffc90000a08d08 R08: ffffffff99b56f2b R09: 1ffffffff336ade5
R10: dffffc0000000000 R11: fffffbfff336ade6 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffffffff99b56f28 R15: 1ffff92000141190
FS: 00007f71ea8856c0(0000) GS:ffff888125f35000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f387500f000 CR3: 00000000b33de000 CR4: 0000000000350ef0
Call Trace:
debug_hrtimer_deactivate kernel/time/hrtimer.c:443 [inline]
debug_deactivate+0x1d/0x1e0 kernel/time/hrtimer.c:483
__run_hrtimer kernel/time/hrtimer.c:1745 [inline]
__hrtimer_run_queues+0x2b0/0xc30 kernel/time/hrtimer.c:1841
hrtimer_interrupt+0x45b/0xaa0 kernel/time/hrtimer.c:1903
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1045 [inline]
__sysvec_apic_timer_interrupt+0x102/0x3e0 arch/x86/kernel/apic/apic.c:1062
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline]
sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1056
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:console_flush_one_record arch/x86/include/asm/irqflags.h:-1 [inline]
RIP: 0010:console_flush_all+0x846/0xb60 kernel/printk/printk.c:3289
Code: ff ff e8 bd 23 20 00 90 0f 0b 90 e9 53 fc ff ff e8 af 23 20 00 e8 ba 24 ba 09 48 85 db 74 c0 e8 a0 23 20 00 fb 48 8b 5c 24 10 <48> 8b 44 24 20 42 80 3c 20 00 4c 8b 74 24 18 74 08 4c 89 f7 e8 51
RSP: 0018:ffffc900050c6b60 EFLAGS: 00000246
RAX: ffffffff81a18d60 RBX: ffffc900050c6d00 RCX: 0000000000080000
RDX: ffffc90015b2d000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc900050c6cb0 R08: ffffffff8f821e77 R09: 1ffffffff1f043ce
R10: dffffc0000000000 R11: fffffbfff1f043cf R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000000 R15: ffffffff8e792160
__console_flush_and_unlock kernel/printk/printk.c:3319 [inline]
console_unlock+0xbb/0x190 kernel/printk/printk.c:3359
vprintk_emit+0x4f8/0x5f0 kernel/printk/printk.c:2426
_printk+0xcf/0x120 kernel/printk/printk.c:2451
set_capacity_and_notify+0x2a8/0x300 block/genhd.c:93
loop_set_size+0x44/0xb0 drivers/block/loop.c:220
loop_configure+0x9f8/0xe50 drivers/block/loop.c:1080
lo_ioctl+0x806/0x1c50 drivers/block/loop.c:-1
blkdev_ioctl+0x60e/0x710 block/ioctl.c:791
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:597 [inline]
__se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f71e998f34b
Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 00 00
RSP: 002b:00007f71ea884dc0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f71e998f34b
RDX: 0000000000000004 RSI: 0000000000004c00 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000005598
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004
R13: 00007f71ea884ef0 R14: 00007f71ea884eb0 R15: 00007f71df600000
task:modprobe state:R running task stack:24312 pid:22857 tgid:22857 ppid:9052 task_flags:0x400000 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5256 [inline]
__schedule+0x14bc/0x5000 kernel/sched/core.c:6863
preempt_schedule_common+0x83/0xd0 kernel/sched/core.c:7047
preempt_schedule+0xae/0xc0 kernel/sched/core.c:7071
preempt_schedule_thunk+0x16/0x30 arch/x86/entry/thunk.S:12
__raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
_raw_spin_unlock+0x3f/0x50 kernel/locking/spinlock.c:186
filemap_map_pmd mm/filemap.c:3691 [inline]
filemap_map_pages+0x7bc/0x1fd0 mm/filemap.c:3897
do_fault_around mm/memory.c:5713 [inline]
do_read_fault mm/memory.c:5746 [inline]
do_fault mm/memory.c:5889 [inline]
do_pte_missing+0x20b0/0x3330 mm/memory.c:4401
handle_pte_fault mm/memory.c:6273 [inline]
__handle_mm_fault mm/memory.c:6411 [inline]
handle_mm_fault+0x1b26/0x32b0 mm/memory.c:6580
do_user_addr_fault+0xa7c/0x1380 arch/x86/mm/fault.c:1336
handle_page_fault arch/x86/mm/fault.c:1476 [inline]
exc_page_fault+0x82/0x100 arch/x86/mm/fault.c:1532
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0033:0x7f4353f48652
RSP: 002b:00007ffd8112af10 EFLAGS: 00010287
RAX: 0000000000000062 RBX: 00007f4353c95350 RCX: 000000000000000e
RDX: 00007f4353c95040 RSI: 0000000000000006 RDI: 000000006fffffff
RBP: 00007ffd8112b380 R08: 000000000000000f R09: 00000000effffef5
R10: 0000000070000029 R11: 00007ffd8112af10 R12: 0000000000000000
R13: 00007f4353f375f0 R14: 00007ffd8112b420 R15: 00007f4353e68000
task:modprobe state:R running task stack:24312 pid:22855 tgid:22855 ppid:12 task_flags:0x400000 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5256 [inline]
__schedule+0x14bc/0x5000 kernel/sched/core.c:6863
preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7190
irqentry_exit+0x5d8/0x660 kernel/entry/common.c:216
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:memset+0xf/0x20 arch/x86/lib/memset_64.S:38
Code: 44 88 1f e9 ce 67 b4 f5 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 49 89 f9 40 88 f0 48 89 d1 aa 4c 89 c8 e9 a2 67 b4 f5 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc9000c0b71d0 EFLAGS: 00000202
RAX: 1ffff92001816e00 RBX: ffffc9000c0b72e0 RCX: 000000000000000f
RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffffc9000c0b72f9
RBP: dffffc0000000000 R08: ffffc9000c0b7307 R09: ffffc9000c0b72f8
R10: dffffc0000000000 R11: fffff52001816e61 R12: ffffc9000c0b76e0
R13: ffffc9000c0b72f8 R14: ffffc9000c0b72a8 R15: ffffc9000c0b72f0
unwind_next_frame+0xc98/0x2390 arch/x86/kernel/unwind_orc.c:592
arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:56 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:77
unpoison_slab_object mm/kasan/common.c:339 [inline]
__kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:365
kasan_slab_alloc include/linux/kasan.h:252 [inline]
slab_post_alloc_hook mm/slub.c:4953 [inline]
slab_alloc_node mm/slub.c:5263 [inline]
kmem_cache_alloc_noprof+0x37d/0x710 mm/slub.c:5270
vm_area_alloc+0x24/0x140 mm/vma_init.c:32
__mmap_new_vma mm/vma.c:2469 [inline]
__mmap_region mm/vma.c:2708 [inline]
mmap_region+0xdea/0x1d10 mm/vma.c:2786
do_mmap+0xc45/0x10d0 mm/mmap.c:558
vm_mmap_pgoff+0x2a6/0x4d0 mm/util.c:581
ksys_mmap_pgoff+0x51f/0x760 mm/mmap.c:604
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f349071c242
RSP: 002b:00007ffca29f60e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f3490432000 RCX: 00007f349071c242
RDX: 0000000000000003 RSI: 0000000000002000 RDI: 00007f3490432000
RBP: 0000000000000812 R08: 0000000000000000 R09: 000000000000d000
R10: 0000000000000812 R11: 0000000000000206 R12: 00007ffca29f61a8
R13: 00007f34906f1580 R14: 00007ffca29f6560 R15: 00000fff9453ec20
rcu: rcu_preempt kthread starved for 10490 jiffies! g118501 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
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:26408 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5256 [inline]
__schedule+0x14bc/0x5000 kernel/sched/core.c:6863
__schedule_loop kernel/sched/core.c:6945 [inline]
schedule+0x165/0x360 kernel/sched/core.c:6960
schedule_timeout+0x12b/0x270 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x301/0x1540 kernel/rcu/tree.c:2083
rcu_gp_kthread+0x99/0x390 kernel/rcu/tree.c:2285
kthread+0x711/0x8a0 kernel/kthread.c:463
ret_from_fork+0x599/0xb30 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 UID: 0 PID: 22853 Comm: syz.8.4453 Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:csd_lock_wait kernel/smp.c:342 [inline]
RIP: 0010:smp_call_function_many_cond+0xccf/0x12b0 kernel/smp.c:877
Code: 45 8b 2c 24 44 89 ee 83 e6 01 31 ff e8 1a 9a 0b 00 41 83 e5 01 49 bd 00 00 00 00 00 fc ff df 75 07 e8 c5 95 0b 00 eb 38 f3 90 <42> 0f b6 04 2b 84 c0 75 11 41 f7 04 24 01 00 00 00 74 1e e8 a9 95
RSP: 0018:ffffc90004cef320 EFLAGS: 00000293
RAX: ffffffff81b61b57 RBX: 1ffff110170e8129 RCX: ffff88802c913d00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90004cef4a0 R08: ffff888028aebc87 R09: 1ffff1100515d790
R10: dffffc0000000000 R11: ffffffff817637d0 R12: ffff8880b8740948
R13: dffffc0000000000 R14: ffff8880b863bb00 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff888125e35000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000100 CR3: 000000004f801000 CR4: 0000000000350ef0
Call Trace:
on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1043
__flush_tlb_multi arch/x86/include/asm/paravirt.h:91 [inline]
flush_tlb_multi arch/x86/mm/tlb.c:1382 [inline]
flush_tlb_mm_range+0x6b1/0x1280 arch/x86/mm/tlb.c:1472
tlb_flush arch/x86/include/asm/tlb.h:23 [inline]
tlb_flush_mmu_tlbonly include/asm-generic/tlb.h:490 [inline]
zap_pte_range mm/memory.c:1881 [inline]
zap_pmd_range mm/memory.c:1946 [inline]
zap_pud_range mm/memory.c:1975 [inline]
zap_p4d_range mm/memory.c:1996 [inline]
unmap_page_range+0x3739/0x4170 mm/memory.c:2017
unmap_single_vma mm/memory.c:2059 [inline]
unmap_vmas+0x399/0x580 mm/memory.c:2101
exit_mmap+0x239/0xb10 mm/mmap.c:1277
__mmput+0x118/0x430 kernel/fork.c:1173
exit_mm+0x1da/0x2c0 kernel/exit.c:581
do_exit+0x658/0x2310 kernel/exit.c:959
do_group_exit+0x21c/0x2d0 kernel/exit.c:1112
__do_sys_exit_group kernel/exit.c:1123 [inline]
__se_sys_exit_group kernel/exit.c:1121 [inline]
__x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1121
x64_sys_call+0x2210/0x2210 arch/x86/include/generated/asm/syscalls_64.h:232
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f387f38f749
Code: Unable to access opcode bytes at 0x7f387f38f71f.
RSP: 002b:00007fff6dcb9c68 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f387f38f749
RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fff6dcb9ccc R08: 000000056dcb9d5f R09: 00000000000927c0
R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000057
R13: 00000000000927c0 R14: 0000000000132c95 R15: 00007fff6dcb9d20
watchdog: BUG: soft lockup - CPU#0 stuck for 225s! [syz.8.4453:22853]
Modules linked in:
irq event stamp: 688738
hardirqs last enabled at (688737): [] irqentry_exit+0x5dd/0x660 kernel/entry/common.c:219
hardirqs last disabled at (688738): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1056
softirqs last enabled at (688736): [] __do_softirq kernel/softirq.c:656 [inline]
softirqs last enabled at (688736): [] invoke_softirq kernel/softirq.c:496 [inline]
softirqs last enabled at (688736): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:723
softirqs last disabled at (688667): [] __do_softirq kernel/softirq.c:656 [inline]
softirqs last disabled at (688667): [] invoke_softirq kernel/softirq.c:496 [inline]
softirqs last disabled at (688667): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:723
CPU: 0 UID: 0 PID: 22853 Comm: syz.8.4453 Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:csd_lock_wait kernel/smp.c:342 [inline]
RIP: 0010:smp_call_function_many_cond+0xccf/0x12b0 kernel/smp.c:877
Code: 45 8b 2c 24 44 89 ee 83 e6 01 31 ff e8 1a 9a 0b 00 41 83 e5 01 49 bd 00 00 00 00 00 fc ff df 75 07 e8 c5 95 0b 00 eb 38 f3 90 <42> 0f b6 04 2b 84 c0 75 11 41 f7 04 24 01 00 00 00 74 1e e8 a9 95
RSP: 0018:ffffc90004cef320 EFLAGS: 00000293
RAX: ffffffff81b61b57 RBX: 1ffff110170e8129 RCX: ffff88802c913d00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90004cef4a0 R08: ffff888028aebc87 R09: 1ffff1100515d790
R10: dffffc0000000000 R11: ffffffff817637d0 R12: ffff8880b8740948
R13: dffffc0000000000 R14: ffff8880b863bb00 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff888125e35000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000100 CR3: 000000004f801000 CR4: 0000000000350ef0
Call Trace:
on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1043
__flush_tlb_multi arch/x86/include/asm/paravirt.h:91 [inline]
flush_tlb_multi arch/x86/mm/tlb.c:1382 [inline]
flush_tlb_mm_range+0x6b1/0x1280 arch/x86/mm/tlb.c:1472
tlb_flush arch/x86/include/asm/tlb.h:23 [inline]
tlb_flush_mmu_tlbonly include/asm-generic/tlb.h:490 [inline]
zap_pte_range mm/memory.c:1881 [inline]
zap_pmd_range mm/memory.c:1946 [inline]
zap_pud_range mm/memory.c:1975 [inline]
zap_p4d_range mm/memory.c:1996 [inline]
unmap_page_range+0x3739/0x4170 mm/memory.c:2017
unmap_single_vma mm/memory.c:2059 [inline]
unmap_vmas+0x399/0x580 mm/memory.c:2101
exit_mmap+0x239/0xb10 mm/mmap.c:1277
__mmput+0x118/0x430 kernel/fork.c:1173
exit_mm+0x1da/0x2c0 kernel/exit.c:581
do_exit+0x658/0x2310 kernel/exit.c:959
do_group_exit+0x21c/0x2d0 kernel/exit.c:1112
__do_sys_exit_group kernel/exit.c:1123 [inline]
__se_sys_exit_group kernel/exit.c:1121 [inline]
__x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1121
x64_sys_call+0x2210/0x2210 arch/x86/include/generated/asm/syscalls_64.h:232
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f387f38f749
Code: Unable to access opcode bytes at 0x7f387f38f71f.
RSP: 002b:00007fff6dcb9c68 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f387f38f749
RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fff6dcb9ccc R08: 000000056dcb9d5f R09: 00000000000927c0
R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000057
R13: 00000000000927c0 R14: 0000000000132c95 R15: 00007fff6dcb9d20
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 22841 Comm: syz.6.4449 Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:variable_test_bit arch/x86/include/asm/bitops.h:222 [inline]
RIP: 0010:arch_test_bit arch/x86/include/asm/bitops.h:233 [inline]
RIP: 0010:_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:142 [inline]
RIP: 0010:cpumask_test_cpu include/linux/cpumask.h:649 [inline]
RIP: 0010:cpu_online include/linux/cpumask.h:1231 [inline]
RIP: 0010:trace_hrtimer_cancel include/trace/events/timer.h:317 [inline]
RIP: 0010:debug_deactivate+0x66/0x1e0 kernel/time/hrtimer.c:484
Code: 07 77 5d e8 ac 65 12 00 41 89 de c1 eb 06 48 8d 3c dd 70 1e 82 8f be 08 00 00 00 e8 d4 be 78 00 31 f6 4c 0f a3 35 fa d2 d2 0d <0f> 92 c3 40 0f 92 c6 bf 02 00 00 00 e8 79 68 12 00 84 db 74 10 e8
RSP: 0018:ffffc90000a08d18 EFLAGS: 00000047
RAX: ffffffff81af4b01 RBX: 0000000000000000 RCX: ffffffff81af4b6c
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8f821e70
RBP: ffffc90000a08e90 R08: ffffffff8f821e77 R09: 1ffffffff1f043ce
R10: dffffc0000000000 R11: fffffbfff1f043cf R12: ffff888031ed4300
R13: dffffc0000000000 R14: 0000000000000001 R15: ffff8880b8728340
FS: 00007f71ea8856c0(0000) GS:ffff888125f35000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f387500f000 CR3: 00000000b33de000 CR4: 0000000000350ef0
Call Trace:
__run_hrtimer kernel/time/hrtimer.c:1745 [inline]
__hrtimer_run_queues+0x2b0/0xc30 kernel/time/hrtimer.c:1841
hrtimer_interrupt+0x45b/0xaa0 kernel/time/hrtimer.c:1903
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1045 [inline]
__sysvec_apic_timer_interrupt+0x102/0x3e0 arch/x86/kernel/apic/apic.c:1062
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline]
sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1056
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:console_flush_one_record arch/x86/include/asm/irqflags.h:-1 [inline]
RIP: 0010:console_flush_all+0x846/0xb60 kernel/printk/printk.c:3289
Code: ff ff e8 bd 23 20 00 90 0f 0b 90 e9 53 fc ff ff e8 af 23 20 00 e8 ba 24 ba 09 48 85 db 74 c0 e8 a0 23 20 00 fb 48 8b 5c 24 10 <48> 8b 44 24 20 42 80 3c 20 00 4c 8b 74 24 18 74 08 4c 89 f7 e8 51
RSP: 0018:ffffc900050c6b60 EFLAGS: 00000246
RAX: ffffffff81a18d60 RBX: ffffc900050c6d00 RCX: 0000000000080000
RDX: ffffc90015b2d000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc900050c6cb0 R08: ffffffff8f821e77 R09: 1ffffffff1f043ce
R10: dffffc0000000000 R11: fffffbfff1f043cf R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000000 R15: ffffffff8e792160
__console_flush_and_unlock kernel/printk/printk.c:3319 [inline]
console_unlock+0xbb/0x190 kernel/printk/printk.c:3359
vprintk_emit+0x4f8/0x5f0 kernel/printk/printk.c:2426
_printk+0xcf/0x120 kernel/printk/printk.c:2451
set_capacity_and_notify+0x2a8/0x300 block/genhd.c:93
loop_set_size+0x44/0xb0 drivers/block/loop.c:220
loop_configure+0x9f8/0xe50 drivers/block/loop.c:1080
lo_ioctl+0x806/0x1c50 drivers/block/loop.c:-1
blkdev_ioctl+0x60e/0x710 block/ioctl.c:791
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:597 [inline]
__se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f71e998f34b
Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 00 00
RSP: 002b:00007f71ea884dc0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f71e998f34b
RDX: 0000000000000004 RSI: 0000000000004c00 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000005598
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004
R13: 00007f71ea884ef0 R14: 00007f71ea884eb0 R15: 00007f71df600000