INFO: task syz.2.68:6764 blocked for more than 143 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.68 state:D stack:28200 pid:6764 tgid:6762 ppid:6380 task_flags:0x400140 flags:0x00080002
Call Trace:
context_switch kernel/sched/core.c:5325 [inline]
__schedule+0x1190/0x5de0 kernel/sched/core.c:6929
__schedule_loop kernel/sched/core.c:7011 [inline]
schedule+0xe7/0x3a0 kernel/sched/core.c:7026
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7083
rwsem_down_read_slowpath+0x64b/0xbf0 kernel/locking/rwsem.c:1086
__down_read_common kernel/locking/rwsem.c:1261 [inline]
__down_read kernel/locking/rwsem.c:1274 [inline]
down_read+0xef/0x480 kernel/locking/rwsem.c:1539
i_mmap_lock_read include/linux/fs.h:568 [inline]
__rmap_walk_file+0x50c/0x620 mm/rmap.c:2905
rmap_walk_file+0x174/0x1f0 mm/rmap.c:2951
rmap_walk+0x7a/0xd0 mm/rmap.c:2962
remove_migration_ptes+0x11d/0x1b0 mm/migrate.c:471
unmap_and_move_huge_page mm/migrate.c:1520 [inline]
migrate_hugetlbs mm/migrate.c:1641 [inline]
migrate_pages+0xa34/0x23a0 mm/migrate.c:2080
do_mbind+0x6e2/0xf20 mm/mempolicy.c:1539
kernel_mbind+0x1e3/0x1f0 mm/mempolicy.c:1682
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f904df8cda9
RSP: 002b:00007f904ed14038 EFLAGS: 00000246 ORIG_RAX: 00000000000000ed
RAX: ffffffffffffffda RBX: 00007f904e1a5fa0 RCX: 00007f904df8cda9
RDX: 0000000100000000 RSI: 0000000100000004 RDI: 0000000000000000
RBP: 00007f904e00e2a0 R08: 0000000000000006 R09: 0000000000000002
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f904e1a5fa0 R15: 00007fff4608fde8
INFO: task syz.2.68:6775 blocked for more than 143 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.68 state:D stack:28504 pid:6775 tgid:6762 ppid:6380 task_flags:0x400040 flags:0x00080002
Call Trace:
context_switch kernel/sched/core.c:5325 [inline]
__schedule+0x1190/0x5de0 kernel/sched/core.c:6929
__schedule_loop kernel/sched/core.c:7011 [inline]
schedule+0xe7/0x3a0 kernel/sched/core.c:7026
io_schedule+0xbf/0x130 kernel/sched/core.c:7871
folio_wait_bit_common+0x3d5/0x9e0 mm/filemap.c:1330
__folio_lock mm/filemap.c:1706 [inline]
folio_lock include/linux/pagemap.h:1141 [inline]
folio_lock include/linux/pagemap.h:1137 [inline]
__filemap_get_folio+0x774/0xc30 mm/filemap.c:1960
filemap_lock_folio include/linux/pagemap.h:820 [inline]
filemap_lock_hugetlb_folio include/linux/hugetlb.h:814 [inline]
hugetlbfs_zero_partial_page+0xaf/0x590 fs/hugetlbfs/inode.c:645
hugetlbfs_punch_hole fs/hugetlbfs/inode.c:686 [inline]
hugetlbfs_fallocate+0xf80/0x12e0 fs/hugetlbfs/inode.c:732
vfs_fallocate+0x5b4/0x10e0 fs/open.c:342
madvise_remove mm/madvise.c:1049 [inline]
madvise_vma_behavior+0x2ac9/0x2d50 mm/madvise.c:1346
madvise_walk_vmas+0x31f/0x9c0 mm/madvise.c:1669
madvise_do_behavior+0x1e2/0x530 mm/madvise.c:1885
do_madvise+0x176/0x240 mm/madvise.c:1978
__do_sys_madvise mm/madvise.c:1987 [inline]
__se_sys_madvise mm/madvise.c:1985 [inline]
__x64_sys_madvise+0xa9/0x110 mm/madvise.c:1985
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f904df8cda9
RSP: 002b:00007f904d1fe038 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007f904e1a6080 RCX: 00007f904df8cda9
RDX: 0000000000000009 RSI: 0000000000800034 RDI: 0000000000108000
RBP: 00007f904e00e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f904e1a6080 R15: 00007fff4608fde8
INFO: task syz.2.68:6779 blocked for more than 144 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.68 state:D stack:29096 pid:6779 tgid:6762 ppid:6380 task_flags:0x400040 flags:0x00080002
Call Trace:
context_switch kernel/sched/core.c:5325 [inline]
__schedule+0x1190/0x5de0 kernel/sched/core.c:6929
__schedule_loop kernel/sched/core.c:7011 [inline]
schedule+0xe7/0x3a0 kernel/sched/core.c:7026
io_schedule+0xbf/0x130 kernel/sched/core.c:7871
migration_entry_wait_on_locked+0x751/0x8c0 mm/filemap.c:1452
migration_entry_wait_huge+0x2f0/0x450 mm/migrate.c:534
hugetlb_fault+0x1a0f/0x2f40 mm/hugetlb.c:6753
handle_mm_fault+0xbfa/0xd10 mm/memory.c:6503
do_user_addr_fault+0x7a6/0x1370 arch/x86/mm/fault.c:1387
handle_page_fault arch/x86/mm/fault.c:1476 [inline]
exc_page_fault+0x64/0xc0 arch/x86/mm/fault.c:1532
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0010:do_strncpy_from_user lib/strncpy_from_user.c:41 [inline]
RIP: 0010:strncpy_from_user+0x147/0x2e0 lib/strncpy_from_user.c:130
Code: 00 00 4d 89 74 1d 00 48 83 ed 08 bf 07 00 00 00 48 83 c3 08 48 89 ee e8 77 99 e6 fc 48 83 fd 07 76 22 e8 fc 9d e6 fc 45 31 ff <49> 8b 04 1c 31 ff 44 89 fe 49 89 c6 e8 28 99 e6 fc 45 85 ff 0f 84
RSP: 0018:ffffc900041cfd00 EFLAGS: 00050246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff84d5b8f6
RDX: ffff88805dfe0000 RSI: ffffffff84d5b994 RDI: 0000000000000007
RBP: 0000000000000fe0 R08: 0000000000000007 R09: 0000000000000007
R10: 0000000000000fe0 R11: 0000000000000000 R12: 0000000000000000
R13: ffff88805b05c420 R14: 0000000000000fe0 R15: 0000000000000000
getname_flags.part.0+0x8f/0x550 fs/namei.c:157
getname_flags+0x93/0xf0 include/linux/audit.h:345
getname include/linux/fs.h:2924 [inline]
do_sys_openat2+0xb8/0x1d0 fs/open.c:1431
do_sys_open fs/open.c:1452 [inline]
__do_sys_openat fs/open.c:1468 [inline]
__se_sys_openat fs/open.c:1463 [inline]
__x64_sys_openat+0x174/0x210 fs/open.c:1463
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f904df8cda9
RSP: 002b:00007f904d1dd038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f904e1a6160 RCX: 00007f904df8cda9
RDX: 0000000000000062 RSI: 0000000000000000 RDI: ffffffffffffff9c
RBP: 00007f904e00e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f904e1a6160 R15: 00007fff4608fde8
Showing all locks held in the system:
3 locks held by kworker/u8:0/12:
#0: ffff88813ff29948 ((wq_completion)events_unbound#2){+.+.}-{0:0}, at: process_one_work+0x12a2/0x1b70 kernel/workqueue.c:3238
#1: ffffc90000117d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x929/0x1b70 kernel/workqueue.c:3239
#2: ffffffff900eb4c8 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0x51/0xc0 net/core/link_watch.c:303
1 lock held by khungtaskd/31:
#0: ffffffff8e3c45e0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
#0: ffffffff8e3c45e0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:867 [inline]
#0: ffffffff8e3c45e0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x36/0x1c0 kernel/locking/lockdep.c:6775
5 locks held by kworker/u8:6/1315:
#0: ffff88801ba9f148 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x12a2/0x1b70 kernel/workqueue.c:3238
#1: ffffc9000442fd00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x929/0x1b70 kernel/workqueue.c:3239
#2: ffffffff900d5090 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xad/0x8b0 net/core/net_namespace.c:669
#3: ffffffff900eb4c8 (rtnl_mutex){+.+.}-{4:4}, at: default_device_exit_batch+0x8b/0xaf0 net/core/dev.c:12837
#4: ffffffff8e3cfb78 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock+0x1a3/0x3c0 kernel/rcu/tree_exp.h:343
1 lock held by dhcpcd/5495:
#0: ffffffff900eb4c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
#0: ffffffff900eb4c8 (rtnl_mutex){+.+.}-{4:4}, at: devinet_ioctl+0x26d/0x1f50 net/ipv4/devinet.c:1120
2 locks held by getty/5589:
#0: ffff88814d41e0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc9000332b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x41b/0x14f0 drivers/tty/n_tty.c:2222
1 lock held by syz.2.68/6764:
#0: ffff8880594f4418 (&hugetlbfs_i_mmap_rwsem_key){++++}-{4:4}, at: i_mmap_lock_read include/linux/fs.h:568 [inline]
#0: ffff8880594f4418 (&hugetlbfs_i_mmap_rwsem_key){++++}-{4:4}, at: __rmap_walk_file+0x50c/0x620 mm/rmap.c:2905
3 locks held by syz.2.68/6775:
#0: ffff8881452ee420 (sb_writers#12){.+.+}-{0:0}, at: madvise_remove mm/madvise.c:1049 [inline]
#0: ffff8881452ee420 (sb_writers#12){.+.+}-{0:0}, at: madvise_vma_behavior+0x2ac9/0x2d50 mm/madvise.c:1346
#1: ffff8880594f4148 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:980 [inline]
#1: ffff8880594f4148 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: hugetlbfs_punch_hole fs/hugetlbfs/inode.c:674 [inline]
#1: ffff8880594f4148 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: hugetlbfs_fallocate+0xce5/0x12e0 fs/hugetlbfs/inode.c:732
#2: ffff8880594f4418 (&hugetlbfs_i_mmap_rwsem_key){++++}-{4:4}, at: i_mmap_lock_write include/linux/fs.h:548 [inline]
#2: ffff8880594f4418 (&hugetlbfs_i_mmap_rwsem_key){++++}-{4:4}, at: hugetlbfs_punch_hole fs/hugetlbfs/inode.c:682 [inline]
#2: ffff8880594f4418 (&hugetlbfs_i_mmap_rwsem_key){++++}-{4:4}, at: hugetlbfs_fallocate+0xd5c/0x12e0 fs/hugetlbfs/inode.c:732
1 lock held by syz.2.68/6779:
#0: ffff8880781d4d20 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_trylock include/linux/mmap_lock.h:387 [inline]
#0: ffff8880781d4d20 (&mm->mmap_lock){++++}-{4:4}, at: get_mmap_lock_carefully mm/mmap_lock.c:369 [inline]
#0: ffff8880781d4d20 (&mm->mmap_lock){++++}-{4:4}, at: lock_mm_and_find_vma+0x35/0x6e0 mm/mmap_lock.c:429
1 lock held by syz.3.1472/10091:
#0: ffff8880594f1818 (&hugetlbfs_i_mmap_rwsem_key){++++}-{4:4}, at: i_mmap_lock_read include/linux/fs.h:568 [inline]
#0: ffff8880594f1818 (&hugetlbfs_i_mmap_rwsem_key){++++}-{4:4}, at: __rmap_walk_file+0x50c/0x620 mm/rmap.c:2905
3 locks held by syz.3.1472/10097:
#0: ffff8881452ee420 (sb_writers#12){.+.+}-{0:0}, at: madvise_remove mm/madvise.c:1049 [inline]
#0: ffff8881452ee420 (sb_writers#12){.+.+}-{0:0}, at: madvise_vma_behavior+0x2ac9/0x2d50 mm/madvise.c:1346
#1: ffff8880594f1548 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:980 [inline]
#1: ffff8880594f1548 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: hugetlbfs_punch_hole fs/hugetlbfs/inode.c:674 [inline]
#1: ffff8880594f1548 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: hugetlbfs_fallocate+0xce5/0x12e0 fs/hugetlbfs/inode.c:732
#2: ffff8880594f1818 (&hugetlbfs_i_mmap_rwsem_key){++++}-{4:4}, at: i_mmap_lock_write include/linux/fs.h:548 [inline]
#2: ffff8880594f1818 (&hugetlbfs_i_mmap_rwsem_key){++++}-{4:4}, at: hugetlbfs_punch_hole fs/hugetlbfs/inode.c:682 [inline]
#2: ffff8880594f1818 (&hugetlbfs_i_mmap_rwsem_key){++++}-{4:4}, at: hugetlbfs_fallocate+0xd5c/0x12e0 fs/hugetlbfs/inode.c:732
1 lock held by syz.3.1472/10103:
#0: ffff88807d934260 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_trylock include/linux/mmap_lock.h:387 [inline]
#0: ffff88807d934260 (&mm->mmap_lock){++++}-{4:4}, at: get_mmap_lock_carefully mm/mmap_lock.c:369 [inline]
#0: ffff88807d934260 (&mm->mmap_lock){++++}-{4:4}, at: lock_mm_and_find_vma+0x35/0x6e0 mm/mmap_lock.c:429
1 lock held by syz.1.2662/13073:
#0: ffff88805997c918 (&hugetlbfs_i_mmap_rwsem_key){++++}-{4:4}, at: i_mmap_lock_read include/linux/fs.h:568 [inline]
#0: ffff88805997c918 (&hugetlbfs_i_mmap_rwsem_key){++++}-{4:4}, at: __rmap_walk_file+0x50c/0x620 mm/rmap.c:2905
3 locks held by syz.1.2662/13079:
#0: ffff8881452ee420 (sb_writers#12){.+.+}-{0:0}, at: madvise_remove mm/madvise.c:1049 [inline]
#0: ffff8881452ee420 (sb_writers#12){.+.+}-{0:0}, at: madvise_vma_behavior+0x2ac9/0x2d50 mm/madvise.c:1346
#1: ffff88805997c648 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:980 [inline]
#1: ffff88805997c648 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: hugetlbfs_punch_hole fs/hugetlbfs/inode.c:674 [inline]
#1: ffff88805997c648 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: hugetlbfs_fallocate+0xce5/0x12e0 fs/hugetlbfs/inode.c:732
#2: ffff88805997c918 (&hugetlbfs_i_mmap_rwsem_key){++++}-{4:4}, at: i_mmap_lock_write include/linux/fs.h:548 [inline]
#2: ffff88805997c918 (&hugetlbfs_i_mmap_rwsem_key){++++}-{4:4}, at: hugetlbfs_punch_hole fs/hugetlbfs/inode.c:682 [inline]
#2: ffff88805997c918 (&hugetlbfs_i_mmap_rwsem_key){++++}-{4:4}, at: hugetlbfs_fallocate+0xd5c/0x12e0 fs/hugetlbfs/inode.c:732
1 lock held by syz.1.2662/13082:
#0: ffff88805d3b2220 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_trylock include/linux/mmap_lock.h:387 [inline]
#0: ffff88805d3b2220 (&mm->mmap_lock){++++}-{4:4}, at: get_mmap_lock_carefully mm/mmap_lock.c:369 [inline]
#0: ffff88805d3b2220 (&mm->mmap_lock){++++}-{4:4}, at: lock_mm_and_find_vma+0x35/0x6e0 mm/mmap_lock.c:429
2 locks held by syz-executor/15973:
#0: ffffffff8f492a40 (&ops->srcu#2){.+.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:161 [inline]
#0: ffffffff8f492a40 (&ops->srcu#2){.+.+}-{0:0}, at: srcu_read_lock include/linux/srcu.h:253 [inline]
#0: ffffffff8f492a40 (&ops->srcu#2){.+.+}-{0:0}, at: rtnl_link_ops_get+0x113/0x2c0 net/core/rtnetlink.c:574
#1: ffffffff900eb4c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline]
#1: ffffffff900eb4c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline]
#1: ffffffff900eb4c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x600/0x2000 net/core/rtnetlink.c:4064
1 lock held by syz.6.4032/16256:
#0: ffffffff8e3cfb78 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock+0x1a3/0x3c0 kernel/rcu/tree_exp.h:343
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x29c/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:332 [inline]
watchdog+0xf3f/0x1170 kernel/hung_task.c:495
kthread+0x3c5/0x780 kernel/kthread.c:463
ret_from_fork+0x675/0x7d0 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 6268 Comm: kworker/u9:3 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Workqueue: hci7 hci_cmd_timeout
RIP: 0010:io_serial_out+0x8f/0xb0 drivers/tty/serial/8250/8250_port.c:407
Code: 48 8d 7d 40 44 89 e1 48 b8 00 00 00 00 00 fc ff df 48 89 fa d3 e3 48 c1 ea 03 80 3c 02 00 75 1c 66 03 5d 40 44 89 e8 89 da ee <5b> 5d 41 5c 41 5d c3 cc cc cc cc e8 81 56 fd fc eb a0 e8 0a 57 fd
RSP: 0018:ffffc900034276a0 EFLAGS: 00000002
RAX: 000000000000005b RBX: 00000000000003f8 RCX: 0000000000000000
RDX: 00000000000003f8 RSI: ffffffff8526ae75 RDI: ffffffff9adc5e20
RBP: ffffffff9adc5de0 R08: 0000000000000001 R09: 000000000000001f
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: 000000000000005b R14: ffffffff9adc5de0 R15: ffffffff8526ae10
FS: 0000000000000000(0000) GS:ffff888124b0d000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1be3b78f98 CR3: 000000007cb3e000 CR4: 00000000003526f0
Call Trace:
serial_port_out include/linux/serial_core.h:811 [inline]
serial8250_console_putchar drivers/tty/serial/8250/8250_port.c:3192 [inline]
serial8250_console_fifo_write drivers/tty/serial/8250/8250_port.c:3264 [inline]
serial8250_console_write+0xfbd/0x1890 drivers/tty/serial/8250/8250_port.c:3342
console_emit_next_record kernel/printk/printk.c:3111 [inline]
console_flush_all+0x801/0xc60 kernel/printk/printk.c:3199
__console_flush_and_unlock kernel/printk/printk.c:3258 [inline]
console_unlock+0xd8/0x210 kernel/printk/printk.c:3298
vprintk_emit+0x3d7/0x680 kernel/printk/printk.c:2423
_printk+0xc7/0x100 kernel/printk/printk.c:2448
bt_err+0xe4/0x120 net/bluetooth/lib.c:296
hci_cmd_timeout+0x1ff/0x260 net/bluetooth/hci_core.c:1473
process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3263
process_scheduled_works kernel/workqueue.c:3346 [inline]
worker_thread+0x6c8/0xf10 kernel/workqueue.c:3427
kthread+0x3c5/0x780 kernel/kthread.c:463
ret_from_fork+0x675/0x7d0 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245