================================================================== BUG: KCSAN: data-race in __mod_timer / expire_timers write to 0xffff88813bd1bd88 of 8 bytes by interrupt on cpu 1: expire_timers+0x164/0x260 kernel/time/timer.c:1458 __run_timers+0x358/0x3f0 kernel/time/timer.c:1731 run_timer_softirq+0x19/0x30 kernel/time/timer.c:1744 __do_softirq+0x13c/0x2c3 kernel/softirq.c:343 asm_call_irq_on_stack+0xf/0x20 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline] do_softirq_own_stack+0x32/0x40 arch/x86/kernel/irq_64.c:77 do_softirq kernel/softirq.c:246 [inline] __local_bh_enable_ip+0xba/0xd0 kernel/softirq.c:196 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:176 [inline] _raw_spin_unlock_bh+0x33/0x40 kernel/locking/spinlock.c:207 spin_unlock_bh include/linux/spinlock.h:399 [inline] inet_csk_find_open_port net/ipv4/inet_connection_sock.c:240 [inline] inet_csk_get_port+0x835/0xa50 net/ipv4/inet_connection_sock.c:367 __inet_bind+0x3eb/0x610 net/ipv4/af_inet.c:528 inet_bind+0xac/0xe0 net/ipv4/af_inet.c:457 rds_tcp_conn_path_connect+0x26c/0x430 net/rds/tcp_connect.c:144 rds_connect_worker+0x125/0x1a0 net/rds/threads.c:176 process_one_work+0x3e1/0x950 kernel/workqueue.c:2275 worker_thread+0x616/0xa70 kernel/workqueue.c:2421 kthread+0x20b/0x230 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 read to 0xffff88813bd1bd88 of 8 bytes by task 22403 on cpu 0: __mod_timer+0x44e/0xc10 kernel/time/timer.c:1035 add_timer+0x38/0x50 kernel/time/timer.c:1142 __queue_delayed_work+0xec/0x150 kernel/workqueue.c:1655 queue_delayed_work_on+0x73/0xb0 kernel/workqueue.c:1680 queue_delayed_work include/linux/workqueue.h:522 [inline] bond_alb_monitor+0xb8e/0xbd0 drivers/net/bonding/bond_alb.c:1621 process_one_work+0x3e1/0x950 kernel/workqueue.c:2275 worker_thread+0x616/0xa70 kernel/workqueue.c:2421 kthread+0x20b/0x230 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 22403 Comm: kworker/u4:7 Not tainted 5.11.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: bond10 bond_alb_monitor ==================================================================