INFO: task syz.1.873:10130 blocked for more than 143 seconds.
Not tainted 6.11.0-rc6-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.873 state:D stack:24672 pid:10130 tgid:10130 ppid:8680 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline]
__down_read_common kernel/locking/rwsem.c:1250 [inline]
__down_read kernel/locking/rwsem.c:1263 [inline]
down_read+0x705/0xa40 kernel/locking/rwsem.c:1528
filemap_invalidate_lock_shared include/linux/fs.h:855 [inline]
page_cache_ra_unbounded+0xf7/0x7f0 mm/readahead.c:225
do_sync_mmap_readahead+0x49c/0x970
filemap_fault+0x828/0x1760 mm/filemap.c:3314
__do_fault+0x137/0x460 mm/memory.c:4655
do_shared_fault mm/memory.c:5121 [inline]
do_fault mm/memory.c:5195 [inline]
do_pte_missing mm/memory.c:3947 [inline]
handle_pte_fault+0x1176/0x6fc0 mm/memory.c:5521
__handle_mm_fault mm/memory.c:5664 [inline]
handle_mm_fault+0x1109/0x1bc0 mm/memory.c:5832
do_user_addr_fault arch/x86/mm/fault.c:1338 [inline]
handle_page_fault arch/x86/mm/fault.c:1481 [inline]
exc_page_fault+0x459/0x8c0 arch/x86/mm/fault.c:1539
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7fad77641101
RSP: 002b:00007ffd20cb24e0 EFLAGS: 00010246
RAX: 0000000020000240 RBX: 0000000000000004 RCX: 0000000000000000
RDX: 00000000ffffffff RSI: 0000000000000000 RDI: 0000555582ff93c8
RBP: 00007ffd20cb25f8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000004 R12: 000000000009a3c1
R13: 00007ffd20cb2620 R14: 0000000000000032 R15: fffffffffffffffe
Showing all locks held in the system:
2 locks held by kworker/0:1/9:
#0: ffff88801ac78948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline]
#0: ffff88801ac78948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
#1: ffffc900000e7d00 (free_ipc_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline]
#1: ffffc900000e7d00 (free_ipc_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
2 locks held by kworker/u8:1/12:
1 lock held by khungtaskd/30:
#0: ffffffff8e938320 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline]
#0: ffffffff8e938320 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
#0: ffffffff8e938320 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6626
2 locks held by getty/4987:
#0: ffff888034a8a0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900031332f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ac/0x1e00 drivers/tty/n_tty.c:2211
2 locks held by kworker/u8:11/5496:
1 lock held by syz.1.64/5812:
3 locks held by kworker/0:7/7754:
#0: ffff88801ac78948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline]
#0: ffff88801ac78948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
#1: ffffc900040f7d00 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline]
#1: ffffc900040f7d00 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
#2: ffff888022ade240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x2d1/0x4130 drivers/net/netdevsim/fib.c:1489
1 lock held by syz.1.873/10130:
#0: ffff888023156540 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:855 [inline]
#0: ffff888023156540 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xf7/0x7f0 mm/readahead.c:225
1 lock held by syz-executor/11008:
1 lock held by syz.2.1033/11190:
#0: ffff888023156540 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:855 [inline]
#0: ffff888023156540 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xf7/0x7f0 mm/readahead.c:225
1 lock held by syz-executor/11229:
#0: ffffffff8e93d6f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:328 [inline]
#0: ffffffff8e93d6f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:958
1 lock held by syz-executor/11305:
#0: ffffffff8e93d6f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:328 [inline]
#0: ffffffff8e93d6f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:958
1 lock held by syz.1.1083/11413:
#0: ffff888023156540 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:855 [inline]
#0: ffff888023156540 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xf7/0x7f0 mm/readahead.c:225
5 locks held by syz.3.1091/11458:
1 lock held by syz-executor/11531:
#0: ffffffff8fc7f190 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504
4 locks held by syz-executor/11550:
#0: ffffffff8fc7f190 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504
#1: ffffffff8f9fce90 (devices_rwsem){++++}-{3:3}, at: rdma_dev_init_net+0x198/0x280 drivers/infiniband/core/device.c:1185
#2: ffffffff8f9fd050 (rdma_nets_rwsem){++++}-{3:3}, at: rdma_dev_init_net+0x1e6/0x280 drivers/infiniband/core/device.c:1190
#3: ffff888048248f40 (&device->compat_devs_mutex){+.+.}-{3:3}, at: add_one_compat_dev+0x10d/0x710 drivers/infiniband/core/device.c:949
1 lock held by syz.5.1123/11570:
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.11.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
__dump_stack lib/dump_stack.c:93 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xff4/0x1040 kernel/hung_task.c:379
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 11008 Comm: syz-executor Not tainted 6.11.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:__orc_find arch/x86/kernel/unwind_orc.c:102 [inline]
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:227 [inline]
RIP: 0010:unwind_next_frame+0x51b/0x2a00 arch/x86/kernel/unwind_orc.c:494
Code: 00 00 00 fc ff df 0f b6 04 08 84 c0 75 34 48 63 2b 48 01 dd 48 89 ef 4c 89 f6 e8 30 62 52 00 48 8d 43 04 4c 39 f5 4c 0f 46 e8 <48> 8d 43 fc 4c 0f 47 e0 4c 0f 46 fb 4d 39 e5 77 1d e8 af 5f 52 00
RSP: 0018:ffffc900045076e8 EFLAGS: 00000216
RAX: ffffffff90305700 RBX: ffffffff903056fc RCX: ffff88802ce71e00
RDX: 0000000000000000 RSI: ffffffff81eaed25 RDI: ffffffff81eaed94
RBP: ffffffff81eaed94 R08: ffffffff81412c60 R09: ffffc900045078b0
R10: 0000000000000003 R11: ffffffff817f2f00 R12: ffffffff90305708
R13: ffffffff903056f0 R14: ffffffff81eaed25 R15: ffffffff903056f0
FS: 0000000000000000(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c43ee61 CR3: 000000000e734000 CR4: 0000000000350ef0
Call Trace:
arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
save_stack+0xfb/0x1f0 mm/page_owner.c:156
__reset_page_owner+0x76/0x430 mm/page_owner.c:297
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1094 [inline]
free_unref_page+0xd22/0xea0 mm/page_alloc.c:2612
vfree+0x186/0x2e0 mm/vmalloc.c:3364
kcov_put kernel/kcov.c:438 [inline]
kcov_close+0x2b/0x50 kernel/kcov.c:534
__fput+0x24c/0x8a0 fs/file_table.c:422
task_work_run+0x251/0x310 kernel/task_work.c:228
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0xa2f/0x27f0 kernel/exit.c:882
do_group_exit+0x207/0x2c0 kernel/exit.c:1031
__do_sys_exit_group kernel/exit.c:1042 [inline]
__se_sys_exit_group kernel/exit.c:1040 [inline]
__x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1040
x64_sys_call+0x2634/0x2640 arch/x86/include/generated/asm/syscalls_64.h:232
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: 0033:0x7f7361779eb9
Code: Unable to access opcode bytes at 0x7f7361779e8f.
RSP: 002b:00007ffd5fef70e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7361779eb9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000043
RBP: 00007f73617e8ea7 R08: 00007ffd5fef4e86 R09: 00000000000c0c1a
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000020
R13: 00000000000c0c1a R14: 00000000000c04d9 R15: 00007ffd5fef7290