=============================
WARNING: suspicious RCU usage
6.13.0-rc3-syzkaller-00073-geabcdba3ad40 #0 Not tainted
-----------------------------
net/sched/sch_generic.c:1290 suspicious rcu_dereference_protected() usage!
other info that might help us debug this:
rcu_scheduler_active = 2, debug_locks = 1
3 locks held by kworker/u32:1/12:
#0: ffff8880650cc948 ((wq_completion)bond0#4){+.+.}-{0:0}, at: process_one_work+0x12cd/0x1b30 kernel/workqueue.c:3204
#1: ffffc900001e7d80 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work+0x8bb/0x1b30 kernel/workqueue.c:3205
#2: ffffffff8ddbad40 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#2: ffffffff8ddbad40 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#2: ffffffff8ddbad40 (rcu_read_lock){....}-{1:3}, at: bond_mii_monitor+0x140/0x2d90 drivers/net/bonding/bond_main.c:2960
stack backtrace:
CPU: 3 UID: 0 PID: 12 Comm: kworker/u32:1 Not tainted 6.13.0-rc3-syzkaller-00073-geabcdba3ad40 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: bond0 bond_mii_monitor
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
lockdep_rcu_suspicious+0x210/0x3c0 kernel/locking/lockdep.c:6845
dev_deactivate_queue+0x167/0x190 net/sched/sch_generic.c:1290
netdev_for_each_tx_queue include/linux/netdevice.h:2562 [inline]
dev_deactivate_many+0xe7/0xb20 net/sched/sch_generic.c:1363
dev_deactivate+0xf9/0x1c0 net/sched/sch_generic.c:1403
linkwatch_do_dev+0x11e/0x160 net/core/link_watch.c:180
linkwatch_sync_dev+0x181/0x210 net/core/link_watch.c:268
ethtool_op_get_link+0x1d/0x70 net/ethtool/ioctl.c:62
bond_check_dev_link+0x197/0x430 drivers/net/bonding/bond_main.c:873
bond_miimon_inspect drivers/net/bonding/bond_main.c:2740 [inline]
bond_mii_monitor+0x3c1/0x2d90 drivers/net/bonding/bond_main.c:2962
process_one_work+0x958/0x1b30 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
=============================
WARNING: suspicious RCU usage
6.13.0-rc3-syzkaller-00073-geabcdba3ad40 #0 Not tainted
-----------------------------
./include/linux/rtnetlink.h:156 suspicious rcu_dereference_protected() usage!
other info that might help us debug this:
rcu_scheduler_active = 2, debug_locks = 1
3 locks held by kworker/u32:1/12:
#0: ffff8880650cc948 ((wq_completion)bond0#4){+.+.}-{0:0}, at: process_one_work+0x12cd/0x1b30 kernel/workqueue.c:3204
#1: ffffc900001e7d80 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work+0x8bb/0x1b30 kernel/workqueue.c:3205
#2: ffffffff8ddbad40 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#2: ffffffff8ddbad40 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#2: ffffffff8ddbad40 (rcu_read_lock){....}-{1:3}, at: bond_mii_monitor+0x140/0x2d90 drivers/net/bonding/bond_main.c:2960
stack backtrace:
CPU: 2 UID: 0 PID: 12 Comm: kworker/u32:1 Not tainted 6.13.0-rc3-syzkaller-00073-geabcdba3ad40 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: bond0 bond_mii_monitor
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
lockdep_rcu_suspicious+0x210/0x3c0 kernel/locking/lockdep.c:6845
dev_ingress_queue include/linux/rtnetlink.h:156 [inline]
dev_deactivate_many+0x8af/0xb20 net/sched/sch_generic.c:1365
dev_deactivate+0xf9/0x1c0 net/sched/sch_generic.c:1403
linkwatch_do_dev+0x11e/0x160 net/core/link_watch.c:180
linkwatch_sync_dev+0x181/0x210 net/core/link_watch.c:268
ethtool_op_get_link+0x1d/0x70 net/ethtool/ioctl.c:62
bond_check_dev_link+0x197/0x430 drivers/net/bonding/bond_main.c:873
bond_miimon_inspect drivers/net/bonding/bond_main.c:2740 [inline]
bond_mii_monitor+0x3c1/0x2d90 drivers/net/bonding/bond_main.c:2962
process_one_work+0x958/0x1b30 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
BUG: sleeping function called from invalid context at net/core/dev.c:11403
in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 12, name: kworker/u32:1
preempt_count: 0, expected: 0
RCU nest depth: 1, expected: 0
3 locks held by kworker/u32:1/12:
#0:
ffff8880650cc948
(
(wq_completion)bond0
#4
){+.+.}-{0:0}
, at: process_one_work+0x12cd/0x1b30 kernel/workqueue.c:3204
#1:
ffffc900001e7d80
(
(work_completion)(&(&bond->mii_work)->work)
){+.+.}-{0:0}
, at: process_one_work+0x8bb/0x1b30 kernel/workqueue.c:3205
#2:
ffffffff8ddbad40 (
rcu_read_lock
){....}-{1:3}
, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
, at: bond_mii_monitor+0x140/0x2d90 drivers/net/bonding/bond_main.c:2960
CPU: 2 UID: 0 PID: 12 Comm: kworker/u32:1 Not tainted 6.13.0-rc3-syzkaller-00073-geabcdba3ad40 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: bond0 bond_mii_monitor
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
__might_resched+0x3c0/0x5e0 kernel/sched/core.c:8758
synchronize_net+0x1b/0x60 net/core/dev.c:11403
dev_deactivate_many+0x2a1/0xb20 net/sched/sch_generic.c:1377
dev_deactivate+0xf9/0x1c0 net/sched/sch_generic.c:1403
linkwatch_do_dev+0x11e/0x160 net/core/link_watch.c:180
linkwatch_sync_dev+0x181/0x210 net/core/link_watch.c:268
ethtool_op_get_link+0x1d/0x70 net/ethtool/ioctl.c:62
bond_check_dev_link+0x197/0x430 drivers/net/bonding/bond_main.c:873
bond_miimon_inspect drivers/net/bonding/bond_main.c:2740 [inline]
bond_mii_monitor+0x3c1/0x2d90 drivers/net/bonding/bond_main.c:2962
process_one_work+0x958/0x1b30 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
=============================
WARNING: suspicious RCU usage
6.13.0-rc3-syzkaller-00073-geabcdba3ad40 #0 Tainted: G W
-----------------------------
kernel/rcu/tree_exp.h:946 Illegal synchronize_rcu_expedited() in RCU read-side critical section!
other info that might help us debug this:
rcu_scheduler_active = 2, debug_locks = 1
3 locks held by kworker/u32:1/12:
#0: ffff8880650cc948 ((wq_completion)bond0#4){+.+.}-{0:0}, at: process_one_work+0x12cd/0x1b30 kernel/workqueue.c:3204
#1: ffffc900001e7d80 ((work_completion)(&(&bond->mii_work)->work)){+.+.}-{0:0}, at: process_one_work+0x8bb/0x1b30 kernel/workqueue.c:3205
#2: ffffffff8ddbad40 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#2: ffffffff8ddbad40 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#2: ffffffff8ddbad40 (rcu_read_lock){....}-{1:3}, at: bond_mii_monitor+0x140/0x2d90 drivers/net/bonding/bond_main.c:2960
stack backtrace:
CPU: 2 UID: 0 PID: 12 Comm: kworker/u32:1 Tainted: G W 6.13.0-rc3-syzkaller-00073-geabcdba3ad40 #0
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: bond0 bond_mii_monitor
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
lockdep_rcu_suspicious+0x210/0x3c0 kernel/locking/lockdep.c:6845
synchronize_rcu_expedited+0x1e5/0x450 kernel/rcu/tree_exp.h:946
synchronize_net+0x3e/0x60 net/core/dev.c:11405
dev_deactivate_many+0x2a1/0xb20 net/sched/sch_generic.c:1377
dev_deactivate+0xf9/0x1c0 net/sched/sch_generic.c:1403
linkwatch_do_dev+0x11e/0x160 net/core/link_watch.c:180
linkwatch_sync_dev+0x181/0x210 net/core/link_watch.c:268
ethtool_op_get_link+0x1d/0x70 net/ethtool/ioctl.c:62
bond_check_dev_link+0x197/0x430 drivers/net/bonding/bond_main.c:873
bond_miimon_inspect drivers/net/bonding/bond_main.c:2740 [inline]
bond_mii_monitor+0x3c1/0x2d90 drivers/net/bonding/bond_main.c:2962
process_one_work+0x958/0x1b30 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
------------[ cut here ]------------
Voluntary context switch within RCU read-side critical section!
WARNING: CPU: 2 PID: 12 at kernel/rcu/tree_plugin.h:331 rcu_note_context_switch+0xc5c/0x1ae0 kernel/rcu/tree_plugin.h:331
Modules linked in:
CPU: 2 UID: 0 PID: 12 Comm: kworker/u32:1 Tainted: G W 6.13.0-rc3-syzkaller-00073-geabcdba3ad40 #0
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: bond0 bond_mii_monitor
RIP: 0010:rcu_note_context_switch+0xc5c/0x1ae0 kernel/rcu/tree_plugin.h:331
Code: 7a 00 4c 8b 54 24 30 48 8b 44 24 28 8b 4c 24 10 e9 c6 03 00 00 c6 05 4f 9e 84 0e 01 90 48 c7 c7 c0 a4 4e 8b e8 65 2e d9 ff 90 <0f> 0b 90 90 e9 a8 f4 ff ff 38 d0 7f 08 84 c0 0f 85 2b 08 00 00 80
RSP: 0018:ffffc900001e74f8 EFLAGS: 00010086
RAX: 0000000000000000 RBX: ffff88802b63fcc0 RCX: ffffffff815a16c9
RDX: ffff88801ca8c880 RSI: ffffffff815a16d6 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000003 R12: ffff88801ca8c880
R13: ffff88801ca8c880 R14: ffff88801ca8c880 R15: ffff88802b63ed00
FS: 0000000000000000(0000) GS:ffff88802b600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000f713fdb0 CR3: 0000000048226000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__schedule+0x297/0x5ad0 kernel/sched/core.c:6661
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6848
exp_funnel_lock+0x344/0x3b0 kernel/rcu/tree_exp.h:320
synchronize_rcu_expedited+0x290/0x450 kernel/rcu/tree_exp.h:976
synchronize_net+0x3e/0x60 net/core/dev.c:11405
dev_deactivate_many+0x2a1/0xb20 net/sched/sch_generic.c:1377
dev_deactivate+0xf9/0x1c0 net/sched/sch_generic.c:1403
linkwatch_do_dev+0x11e/0x160 net/core/link_watch.c:180
linkwatch_sync_dev+0x181/0x210 net/core/link_watch.c:268
ethtool_op_get_link+0x1d/0x70 net/ethtool/ioctl.c:62
bond_check_dev_link+0x197/0x430 drivers/net/bonding/bond_main.c:873
bond_miimon_inspect drivers/net/bonding/bond_main.c:2740 [inline]
bond_mii_monitor+0x3c1/0x2d90 drivers/net/bonding/bond_main.c:2962
process_one_work+0x958/0x1b30 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244