INFO: task syz-executor.0:6142 blocked for more than 143 seconds.
Not tainted 6.5.0-rc4-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:14632 pid:6142 ppid:5030 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0x3c8/0xa20 kernel/sched/core.c:6710
schedule+0x59/0xa0 kernel/sched/core.c:6786
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6845
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x53d/0x9f0 kernel/locking/mutex.c:747
blk_trace_remove+0x21/0x80 kernel/trace/blktrace.c:406
sg_ioctl_common drivers/scsi/sg.c:1126 [inline]
sg_ioctl+0x315/0x10e0 drivers/scsi/sg.c:1160
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__x64_sys_ioctl+0xf2/0x140 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f8f69a2cda9
RSP: 002b:00007f8f6958e0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f8f69b5c050 RCX: 00007f8f69a2cda9
RDX: 0000000000000000 RSI: 0000000000001276 RDI: 0000000000000003
RBP: 00007f8f69a7947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f8f69b5c050 R15: 00007fff1e1da198
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff837a43d0 (rcu_tasks.tasks_gp_mutex){....}-{3:3}, at: rcu_tasks_one_gp+0x26/0x3d0 kernel/rcu/tasks.h:522
1 lock held by khungtaskd/27:
#0: ffffffff837a4a80 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x12/0x120 kernel/locking/lockdep.c:6615
2 locks held by getty/1773:
#0: ffff88810867c098 (&tty->ldisc_sem){....}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x60 drivers/tty/tty_ldisc.c:243
#1: ffffc90003c0f2f0 (&ldata->atomic_read_lock){....}-{3:3}, at: n_tty_read+0x83d/0xa60 drivers/tty/n_tty.c:2187
3 locks held by kworker/0:4/2903:
1 lock held by syz-executor.5/6039:
#0: ffffffff837a5678 (rcu_state.exp_mutex){....}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:293 [inline]
#0: ffffffff837a5678 (rcu_state.exp_mutex){....}-{3:3}, at: synchronize_rcu_expedited+0x325/0x450 kernel/rcu/tree_exp.h:992
2 locks held by syz-executor.0/6141:
1 lock held by syz-executor.0/6142:
#0: ffff888100fbcf80 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_remove+0x21/0x80 kernel/trace/blktrace.c:406
1 lock held by syz-executor.2/7160:
#0: ffff888100fbcf80 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_setup+0x33/0x60 kernel/trace/blktrace.c:648
1 lock held by syz-executor.2/7171:
#0: ffff888100fbcf80 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_remove+0x21/0x80 kernel/trace/blktrace.c:406
1 lock held by syz-executor.3/7605:
#0: ffff888100fbcf80 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_setup+0x33/0x60 kernel/trace/blktrace.c:648
1 lock held by syz-executor.3/7607:
#0: ffff888100fbcf80 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_remove+0x21/0x80 kernel/trace/blktrace.c:406
1 lock held by syz-executor.5/8520:
#0: ffff888100fbcf80 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_setup+0x33/0x60 kernel/trace/blktrace.c:648
1 lock held by syz-executor.5/8524:
#0: ffff888100fbcf80 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_remove+0x21/0x80 kernel/trace/blktrace.c:406
1 lock held by syz-executor.0/9164:
#0: ffff888100fbcf80 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_setup+0x33/0x60 kernel/trace/blktrace.c:648
1 lock held by syz-executor.0/9168:
#0: ffff888100fbcf80 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_remove+0x21/0x80 kernel/trace/blktrace.c:406
1 lock held by syz-executor.1/9554:
#0: ffff888100fbcf80 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_setup+0x33/0x60 kernel/trace/blktrace.c:648
1 lock held by syz-executor.1/9559:
#0: ffff888100fbcf80 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_remove+0x21/0x80 kernel/trace/blktrace.c:406
1 lock held by syz-executor.4/9558:
#0: ffff888100fbcf80 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_setup+0x33/0x60 kernel/trace/blktrace.c:648
1 lock held by syz-executor.4/9560:
#0: ffff888100fbcf80 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_remove+0x21/0x80 kernel/trace/blktrace.c:406
1 lock held by syz-executor.2/10092:
#0: ffff888100fbcf80 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_setup+0x33/0x60 kernel/trace/blktrace.c:648
1 lock held by syz-executor.2/10096:
#0: ffff888100fbcf80 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_remove+0x21/0x80 kernel/trace/blktrace.c:406
1 lock held by syz-executor.3/10140:
#0: ffff888100fbcf80 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_setup+0x33/0x60 kernel/trace/blktrace.c:648
1 lock held by syz-executor.3/10141:
#0: ffff888100fbcf80 (&q->debugfs_mutex){....}-{3:3}, at: blk_trace_remove+0x21/0x80 kernel/trace/blktrace.c:406
1 lock held by syz-executor.5/10143:
#0: ffffffff838faa48 (rtnl_mutex){....}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline]
#0: ffffffff838faa48 (rtnl_mutex){....}-{3:3}, at: rtnetlink_rcv_msg+0x21f/0x670 net/core/rtnetlink.c:6421
1 lock held by syz-executor.0/10233:
#0: ffffffff838faa48 (rtnl_mutex){....}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline]
#0: ffffffff838faa48 (rtnl_mutex){....}-{3:3}, at: rtnetlink_rcv_msg+0x21f/0x670 net/core/rtnetlink.c:6421
5 locks held by syz-executor.1/10332:
#0: ffff88810ab810c8 (&f->f_pos_lock){....}-{3:3}, at: __fdget_pos+0x77/0x90 fs/file.c:1046
#1: ffff888100bbb3e8 (sb_writers#8){....}-{0:0}, at: ksys_write+0xb3/0x180 fs/read_write.c:637
#2: ffff888123cbd688 (&of->mutex){....}-{3:3}, at: kernfs_fop_write_iter+0x172/0x2c0 fs/kernfs/file.c:325
#3: ffff888103af1548 (kn->active#38){....}-{0:0}, at: kernfs_fop_write_iter+0x17b/0x2c0 fs/kernfs/file.c:326
#4: ffffffff838a18c8 (nsim_bus_dev_list_lock){....}-{3:3}, at: del_device_store+0x8d/0x240 drivers/net/netdevsim/bus.c:209
8 locks held by syz-executor.4/10334:
#0: ffff88820b3914c8 (&f->f_pos_lock){....}-{3:3}, at: __fdget_pos+0x77/0x90 fs/file.c:1046
#1: ffff888100bbb3e8 (sb_writers#8){....}-{0:0}, at: ksys_write+0xb3/0x180 fs/read_write.c:637
#2: ffff888123cbda88 (&of->mutex){....}-{3:3}, at: kernfs_fop_write_iter+0x172/0x2c0 fs/kernfs/file.c:325
#3: ffff888103af1548 (kn->active#38){....}-{0:0}, at: kernfs_fop_write_iter+0x17b/0x2c0 fs/kernfs/file.c:326
#4: ffffffff838a18c8 (nsim_bus_dev_list_lock){....}-{3:3}, at: del_device_store+0x8d/0x240 drivers/net/netdevsim/bus.c:209
#5: ffff888207e248e8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:958 [inline]
#5: ffff888207e248e8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1093 [inline]
#5: ffff888207e248e8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0x59/0x2f0 drivers/base/dd.c:1290
#6: ffff888207e24250 (&devlink->lock_key#16){....}-{3:3}, at: nsim_drv_remove+0x28/0xb0 drivers/net/netdevsim/dev.c:1672
#7: ffffffff837a5678 (rcu_state.exp_mutex){....}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:325 [inline]
#7: ffffffff837a5678 (rcu_state.exp_mutex){....}-{3:3}, at: synchronize_rcu_expedited+0x159/0x450 kernel/rcu/tree_exp.h:992
1 lock held by syz-executor.2/10754:
#0: ffffffff838faa48 (rtnl_mutex){....}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline]
#0: ffffffff838faa48 (rtnl_mutex){....}-{3:3}, at: rtnetlink_rcv_msg+0x21f/0x670 net/core/rtnetlink.c:6421
1 lock held by syz-executor.3/10795:
#0: ffffffff838faa48 (rtnl_mutex){....}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline]
#0: ffffffff838faa48 (rtnl_mutex){....}-{3:3}, at: rtnetlink_rcv_msg+0x21f/0x670 net/core/rtnetlink.c:6421
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 6.5.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x8e/0xf0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x1ae/0x210 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x1b1/0x1e0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0x908/0x940 kernel/hung_task.c:379
kthread+0x10f/0x150 kernel/kthread.c:388
ret_from_fork+0x45/0x50 arch/x86/kernel/process.c:145
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 6141 Comm: syz-executor.0 Not tainted 6.5.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:__lock_acquire.constprop.0+0x2f7/0x570 kernel/locking/lockdep.c:5020
Code: 0f 85 11 02 00 00 0f b7 45 20 66 25 ff 1f 66 89 44 24 16 0f b6 45 22 83 e0 03 88 44 24 10 e9 6d fe ff ff 89 f0 48 8b 44 c7 08 <48> 85 c0 0f 85 68 fd ff ff e9 39 fd ff ff e8 f6 dc 7b 00 85 c0 74
RSP: 0018:ffffc900019d3a50 EFLAGS: 00000097
RAX: ffffffff843e5270 RBX: 0000000000000000 RCX: 0000000000000002
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88823fff9d38
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: ffff88813010b680 R15: 0000000000000000
FS: 00007f8f695af6c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4050959440 CR3: 000000016ed5e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire kernel/locking/lockdep.c:5761 [inline]
lock_acquire+0xab/0x180 kernel/locking/lockdep.c:5726
seqcount_lockdep_reader_access include/linux/seqlock.h:102 [inline]
read_seqbegin include/linux/seqlock.h:837 [inline]
zone_span_seqbegin include/linux/memory_hotplug.h:132 [inline]
page_outside_zone_boundaries mm/page_alloc.c:468 [inline]
bad_range+0x4d/0x150 mm/page_alloc.c:488
rmqueue mm/page_alloc.c:2845 [inline]
get_page_from_freelist+0x8a9/0x1220 mm/page_alloc.c:3218
__alloc_pages+0xf3/0x260 mm/page_alloc.c:4477
alloc_pages+0x124/0x290 mm/mempolicy.c:2292
relay_alloc_buf kernel/relay.c:121 [inline]
relay_create_buf kernel/relay.c:162 [inline]
relay_open_buf.part.0+0x17a/0x490 kernel/relay.c:384
relay_open_buf kernel/relay.c:536 [inline]
relay_open+0x356/0x510 kernel/relay.c:517
do_blk_trace_setup+0x1fa/0x380 kernel/trace/blktrace.c:591
__blk_trace_setup+0x83/0x130 kernel/trace/blktrace.c:631
blk_trace_setup+0x47/0x60 kernel/trace/blktrace.c:649
sg_ioctl_common drivers/scsi/sg.c:1118 [inline]
sg_ioctl+0x504/0x10e0 drivers/scsi/sg.c:1160
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__x64_sys_ioctl+0xf2/0x140 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f8f69a2cda9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8f695af0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f8f69b5bf80 RCX: 00007f8f69a2cda9
RDX: 0000000020000040 RSI: 00000000c0481273 RDI: 0000000000000003
RBP: 00007f8f69a7947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000006 R14: 00007f8f69b5bf80 R15: 00007fff1e1da198