RDX: 0000000000000001 RSI: 0000000020004280 RDI: 0000000000000003 RBP: 0000000000000000 R08: 00000000200043c0 R09: 0000000000000031 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00000000006f0020 R14: 00007f12d3cd5d80 R15: 0000000000000004 ================================================================== BUG: KMSAN: uninit-value in __list_del_entry_valid+0x2da/0x440 lib/list_debug.c:51 CPU: 1 PID: 4404 Comm: rsyslogd Not tainted 4.17.0+ #9 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x185/0x1d0 lib/dump_stack.c:113 kmsan_report+0x188/0x2a0 mm/kmsan/kmsan.c:1125 __msan_warning_32+0x70/0xc0 mm/kmsan/kmsan_instr.c:620 __list_del_entry_valid+0x2da/0x440 lib/list_debug.c:51 __list_del_entry include/linux/list.h:117 [inline] list_move include/linux/list.h:170 [inline] detach_tasks kernel/sched/fair.c:7509 [inline] load_balance+0x5a15/0x88f0 kernel/sched/fair.c:8843 rebalance_domains+0x77d/0xe30 kernel/sched/fair.c:9221 run_rebalance_domains+0x2d1/0x320 kernel/sched/fair.c:9843 __do_softirq+0x592/0x979 kernel/softirq.c:285 invoke_softirq kernel/softirq.c:365 [inline] irq_exit+0x202/0x240 kernel/softirq.c:405 exiting_irq+0xe/0x10 arch/x86/include/asm/apic.h:525 smp_apic_timer_interrupt+0x64/0x90 arch/x86/kernel/apic/apic.c:1055 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:866 RIP: 0010:syslog_print kernel/printk/printk.c:1341 [inline] RIP: 0010:do_syslog+0x3875/0x3c20 kernel/printk/printk.c:1467 RSP: 0018:ffff8801b703fa50 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: ffffffff8141d69e RBX: 0000000000000000 RCX: ffff8801cc880000 RDX: 0000000000000000 RSI: aaaaaaaaaaaab000 RDI: ffffea0000000000 RBP: ffff8801b703fbc0 R08: ffffffff8b56801c R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801cc8808d8 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 kmsg_read+0x142/0x1a0 fs/proc/kmsg.c:40 proc_reg_read+0x1e3/0x2f0 fs/proc/inode.c:230 __vfs_read+0x1b2/0x9d0 fs/read_write.c:416 vfs_read+0x36c/0x6b0 fs/read_write.c:452 ksys_read fs/read_write.c:578 [inline] __do_sys_read fs/read_write.c:588 [inline] __se_sys_read fs/read_write.c:586 [inline] __x64_sys_read+0x1bf/0x3e0 fs/read_write.c:586 do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f9204f531fd RSP: 002b:00007f92024f2e30 EFLAGS: 00000293 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 0000000001c3bce0 RCX: 00007f9204f531fd RDX: 0000000000000fff RSI: 00007f9203d275a0 RDI: 0000000000000004 RBP: 0000000000000000 R08: 0000000001c27260 R09: 0000000000000000 R10: 6f4e20303037726f R11: 0000000000000293 R12: 000000000065e420 R13: 00007f92024f39c0 R14: 00007f9205598040 R15: 0000000000000003 Uninit was stored to memory at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:282 [inline] kmsan_save_stack mm/kmsan/kmsan.c:297 [inline] kmsan_internal_chain_origin+0x12b/0x210 mm/kmsan/kmsan.c:689 __msan_chain_origin+0x69/0xc0 mm/kmsan/kmsan_instr.c:464 __list_add include/linux/list.h:63 [inline] list_add include/linux/list.h:79 [inline] list_move include/linux/list.h:171 [inline] detach_tasks kernel/sched/fair.c:7509 [inline] load_balance+0x5efd/0x88f0 kernel/sched/fair.c:8843 rebalance_domains+0x77d/0xe30 kernel/sched/fair.c:9221 run_rebalance_domains+0x2d1/0x320 kernel/sched/fair.c:9843 __do_softirq+0x592/0x979 kernel/softirq.c:285 Uninit was stored to memory at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:282 [inline] kmsan_save_stack mm/kmsan/kmsan.c:297 [inline] kmsan_internal_chain_origin+0x12b/0x210 mm/kmsan/kmsan.c:689 __msan_chain_origin+0x69/0xc0 mm/kmsan/kmsan_instr.c:464 __list_del include/linux/list.h:105 [inline] __list_del_entry include/linux/list.h:120 [inline] list_del_init include/linux/list.h:159 [inline] account_entity_dequeue kernel/sched/fair.c:2667 [inline] dequeue_entity kernel/sched/fair.c:4267 [inline] dequeue_task_fair+0x1dd4/0x3300 kernel/sched/fair.c:5407 dequeue_task kernel/sched/core.c:762 [inline] deactivate_task+0x560/0x7d0 kernel/sched/core.c:778 detach_task kernel/sched/fair.c:7396 [inline] detach_tasks kernel/sched/fair.c:7484 [inline] load_balance+0x615c/0x88f0 kernel/sched/fair.c:8843 rebalance_domains+0x77d/0xe30 kernel/sched/fair.c:9221 run_rebalance_domains+0x2d1/0x320 kernel/sched/fair.c:9843 __do_softirq+0x592/0x979 kernel/softirq.c:285 Uninit was stored to memory at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:282 [inline] kmsan_save_stack mm/kmsan/kmsan.c:297 [inline] kmsan_internal_chain_origin+0x12b/0x210 mm/kmsan/kmsan.c:689 __msan_chain_origin+0x69/0xc0 mm/kmsan/kmsan_instr.c:464 __list_add include/linux/list.h:63 [inline] list_add include/linux/list.h:79 [inline] account_entity_enqueue kernel/sched/fair.c:2652 [inline] enqueue_entity kernel/sched/fair.c:4176 [inline] enqueue_task_fair+0x28c9/0x4490 kernel/sched/fair.c:5359 enqueue_task kernel/sched/core.c:751 [inline] activate_task kernel/sched/core.c:770 [inline] ttwu_activate kernel/sched/core.c:1658 [inline] ttwu_do_activate kernel/sched/core.c:1717 [inline] ttwu_queue kernel/sched/core.c:1862 [inline] try_to_wake_up+0x162f/0x2260 kernel/sched/core.c:2075 wake_up_process+0x34/0x40 kernel/sched/core.c:2148 hrtimer_wakeup+0xac/0x100 kernel/time/hrtimer.c:1647 __run_hrtimer kernel/time/hrtimer.c:1398 [inline] __hrtimer_run_queues+0xc54/0x1630 kernel/time/hrtimer.c:1460 hrtimer_interrupt+0x451/0x13c0 kernel/time/hrtimer.c:1518 local_apic_timer_interrupt+0x6b/0x250 arch/x86/kernel/apic/apic.c:1025 smp_apic_timer_interrupt+0x5a/0x90 arch/x86/kernel/apic/apic.c:1053 Local variable description: ----continue_balancing.i@pick_next_task_fair Variable was created at: pick_next_task_fair+0x99/0x2530 kernel/sched/fair.c:6861 pick_next_task+0x1ba/0x420 kernel/sched/core.c:3368 ==================================================================