syzbot


INFO: task hung in __lru_add_drain_all (2)

Status: upstream: reported on 2024/05/17 22:28
Subsystems: mm
[Documentation on labels]
Reported-by: syzbot+5294aa7d73bb0fa85bd0@syzkaller.appspotmail.com
First crash: 96d, last: 2d11h
Discussions (2)
Title Replies (including bot) Last reply
[syzbot] Monthly mm report (May 2024) 0 (1) 2024/05/31 06:48
[syzbot] [mm?] INFO: task hung in __lru_add_drain_all (2) 0 (1) 2024/05/17 22:28
Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 INFO: task hung in __lru_add_drain_all 1 454d 454d 0/3 auto-obsoleted due to no activity on 2023/08/21 02:18
linux-6.1 INFO: task hung in __lru_add_drain_all 1 63d 63d 0/3 upstream: reported on 2024/05/17 20:43
upstream INFO: task hung in __lru_add_drain_all net C done error 71 250d 1050d 0/27 auto-obsoleted due to no activity on 2024/02/20 10:46

Sample crash report:
INFO: task khugepaged:37 blocked for more than 143 seconds.
      Not tainted 6.10.0-syzkaller-04472-g51835949dda3 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:khugepaged      state:D stack:28112 pid:37    tgid:37    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5188 [inline]
 __schedule+0xe37/0x5490 kernel/sched/core.c:6529
 __schedule_loop kernel/sched/core.c:6606 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6621
 schedule_timeout+0x258/0x2a0 kernel/time/timer.c:2557
 do_wait_for_common kernel/sched/completion.c:95 [inline]
 __wait_for_common+0x3de/0x5f0 kernel/sched/completion.c:116
 __flush_work+0x5bd/0xc60 kernel/workqueue.c:4208
 __lru_add_drain_all+0x52c/0x740 mm/swap.c:902
 khugepaged_do_scan mm/khugepaged.c:2485 [inline]
 khugepaged+0x109/0x1820 mm/khugepaged.c:2554
 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
 </TASK>
INFO: task kworker/1:8:17817 blocked for more than 144 seconds.
      Not tainted 6.10.0-syzkaller-04472-g51835949dda3 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:8     state:D stack:24048 pid:17817 tgid:17817 ppid:2      flags:0x00004000
Workqueue: events linkwatch_event
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5188 [inline]
 __schedule+0xe37/0x5490 kernel/sched/core.c:6529
 __schedule_loop kernel/sched/core.c:6606 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6621
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
 linkwatch_event+0x51/0xc0 net/core/link_watch.c:276
 process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231
 process_scheduled_works kernel/workqueue.c:3312 [inline]
 worker_thread+0x6c8/0xf20 kernel/workqueue.c:3390
 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
 </TASK>
INFO: task syz.3.5185:20775 blocked for more than 145 seconds.
      Not tainted 6.10.0-syzkaller-04472-g51835949dda3 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.5185      state:D stack:27936 pid:20775 tgid:20774 ppid:17705  flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5188 [inline]
 __schedule+0xe37/0x5490 kernel/sched/core.c:6529
 __schedule_loop kernel/sched/core.c:6606 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6621
 schedule_timeout+0x258/0x2a0 kernel/time/timer.c:2557
 do_wait_for_common kernel/sched/completion.c:95 [inline]
 __wait_for_common+0x3de/0x5f0 kernel/sched/completion.c:116
 __synchronize_srcu+0x1bd/0x2a0 kernel/rcu/srcutree.c:1398
 mn_hlist_release mm/mmu_notifier.c:345 [inline]
 __mmu_notifier_release+0x28b/0x660 mm/mmu_notifier.c:357
 mmu_notifier_release include/linux/mmu_notifier.h:402 [inline]
 exit_mmap+0x9a0/0xb20 mm/mmap.c:3323
 __mmput+0x12a/0x480 kernel/fork.c:1343
 mmput+0x62/0x70 kernel/fork.c:1365
 exit_mm kernel/exit.c:566 [inline]
 do_exit+0x9bf/0x2bb0 kernel/exit.c:864
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1026
 get_signal+0x25fb/0x2770 kernel/signal.c:2917
 arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:310
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218
 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd19e975a19
RSP: 002b:00007fd19f675048 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000004 RBX: 00007fd19eb03f60 RCX: 00007fd19e975a19
RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 0000000000000003
RBP: 00007fd19e9e4e49 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fd19eb03f60 R15: 00007ffd70bd7998
 </TASK>
INFO: task syz.2.5196:20803 blocked for more than 146 seconds.
      Not tainted 6.10.0-syzkaller-04472-g51835949dda3 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.5196      state:D stack:27168 pid:20803 tgid:20803 ppid:17704  flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5188 [inline]
 __schedule+0xe37/0x5490 kernel/sched/core.c:6529
 __schedule_loop kernel/sched/core.c:6606 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6621
 schedule_timeout+0x258/0x2a0 kernel/time/timer.c:2557
 do_wait_for_common kernel/sched/completion.c:95 [inline]
 __wait_for_common+0x3de/0x5f0 kernel/sched/completion.c:116
 __flush_work+0x5bd/0xc60 kernel/workqueue.c:4208
 flush_all_backlogs net/core/dev.c:6037 [inline]
 unregister_netdevice_many_notify+0x163b/0x1e40 net/core/dev.c:11325
 unregister_netdevice_many net/core/dev.c:11405 [inline]
 unregister_netdevice_queue+0x307/0x3f0 net/core/dev.c:11280
 unregister_netdevice include/linux/netdevice.h:3129 [inline]
 __tun_detach+0x11b0/0x14c0 drivers/net/tun.c:685
 tun_detach drivers/net/tun.c:701 [inline]
 tun_chr_close+0xc8/0x250 drivers/net/tun.c:3507
 __fput+0x408/0xbb0 fs/file_table.c:422
 task_work_run+0x14e/0x250 kernel/task_work.c:222
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x27b/0x2a0 kernel/entry/common.c:218
 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7feee2775a19
RSP: 002b:00007ffe6dedf088 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 000000000015402c RCX: 00007feee2775a19
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: ffffffffffffffff R08: 0000000000000001 R09: 000000036dedf3af
R10: 00007feee2600000 R11: 0000000000000246 R12: 00007feee2903f6c
R13: 0000000000000032 R14: 00007feee2905a60 R15: 00007feee2903f60
 </TASK>
INFO: task syz.1.5197:20806 blocked for more than 147 seconds.
      Not tainted 6.10.0-syzkaller-04472-g51835949dda3 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.5197      state:D stack:27904 pid:20806 tgid:20805 ppid:17701  flags:0x00000004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5188 [inline]
 __schedule+0xe37/0x5490 kernel/sched/core.c:6529
 __schedule_loop kernel/sched/core.c:6606 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6621
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
 nl80211_pre_doit+0xb4/0xb10 net/wireless/nl80211.c:16547
 genl_family_rcv_msg_doit+0x1be/0x2f0 net/netlink/genetlink.c:1110
 genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]
 genl_rcv_msg+0x565/0x800 net/netlink/genetlink.c:1210
 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2550
 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219
 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
 netlink_unicast+0x544/0x830 net/netlink/af_netlink.c:1357
 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 ____sys_sendmsg+0xab5/0xc90 net/socket.c:2597
 ___sys_sendmsg+0x135/0x1e0 net/socket.c:2651
 __sys_sendmsg+0x117/0x1f0 net/socket.c:2680
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7efda7d75a19
RSP: 002b:00007efda8bcf048 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007efda7f03f60 RCX: 00007efda7d75a19
RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003
RBP: 00007efda7de4e49 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007efda7f03f60 R15: 00007ffd97ec7438
 </TASK>
INFO: task syz.4.5202:20818 blocked for more than 148 seconds.
      Not tainted 6.10.0-syzkaller-04472-g51835949dda3 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.5202      state:D stack:27168 pid:20818 tgid:20818 ppid:17708  flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5188 [inline]
 __schedule+0xe37/0x5490 kernel/sched/core.c:6529
 __schedule_loop kernel/sched/core.c:6606 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6621
 schedule_timeout+0x258/0x2a0 kernel/time/timer.c:2557
 do_wait_for_common kernel/sched/completion.c:95 [inline]
 __wait_for_common+0x3de/0x5f0 kernel/sched/completion.c:116
 __synchronize_srcu+0x1bd/0x2a0 kernel/rcu/srcutree.c:1398
 mmu_notifier_unregister+0x298/0x3d0 mm/mmu_notifier.c:829
 kvm_destroy_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:1324 [inline]
 kvm_put_kvm+0x44f/0xb80 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1381
 kvm_vm_release+0x42/0x60 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1404
 __fput+0x408/0xbb0 fs/file_table.c:422
 task_work_run+0x14e/0x250 kernel/task_work.c:222
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x27b/0x2a0 kernel/entry/common.c:218
 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd9ccb75a19
RSP: 002b:00007ffd3c956db8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 0000000000155afe RCX: 00007fd9ccb75a19
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: ffffffffffffffff R08: 0000000000000001 R09: 0000000d3c9570df
R10: 00007fd9cca00000 R11: 0000000000000246 R12: 00007fd9ccd03f6c
R13: 0000000000000032 R14: 00007fd9ccd05a60 R15: 00007fd9ccd03f60
 </TASK>
INFO: task syz-executor:20824 blocked for more than 149 seconds.
      Not tainted 6.10.0-syzkaller-04472-g51835949dda3 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:27552 pid:20824 tgid:20824 ppid:1      flags:0x00000004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5188 [inline]
 __schedule+0xe37/0x5490 kernel/sched/core.c:6529
 __schedule_loop kernel/sched/core.c:6606 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6621
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
 rtnl_lock net/core/rtnetlink.c:79 [inline]
 rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6644
 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2550
 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
 netlink_unicast+0x544/0x830 net/netlink/af_netlink.c:1357
 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 __sys_sendto+0x47f/0x4e0 net/socket.c:2204
 __do_sys_sendto net/socket.c:2216 [inline]
 __se_sys_sendto net/socket.c:2212 [inline]
 __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2212
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fec03f777ac
RSP: 002b:00007ffd15d734f0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007fec04c34620 RCX: 00007fec03f777ac
RDX: 0000000000000028 RSI: 00007fec04c34670 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffd15d73544 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003
R13: 0000000000000000 R14: 00007fec04c34670 R15: 0000000000000000
 </TASK>
INFO: task syz-executor:20826 blocked for more than 150 seconds.
      Not tainted 6.10.0-syzkaller-04472-g51835949dda3 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:27552 pid:20826 tgid:20826 ppid:1      flags:0x00000004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5188 [inline]
 __schedule+0xe37/0x5490 kernel/sched/core.c:6529
 __schedule_loop kernel/sched/core.c:6606 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6621
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
 rtnl_lock net/core/rtnetlink.c:79 [inline]
 rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6644
 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2550
 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
 netlink_unicast+0x544/0x830 net/netlink/af_netlink.c:1357
 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 __sys_sendto+0x47f/0x4e0 net/socket.c:2204
 __do_sys_sendto net/socket.c:2216 [inline]
 __se_sys_sendto net/socket.c:2212 [inline]
 __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2212
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb3e4b777ac
RSP: 002b:00007ffd22fb0640 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007fb3e5834620 RCX: 00007fb3e4b777ac
RDX: 0000000000000028 RSI: 00007fb3e5834670 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffd22fb0694 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003
R13: 0000000000000000 R14: 00007fb3e5834670 R15: 0000000000000000
 </TASK>
INFO: task syz-executor:20830 blocked for more than 151 seconds.
      Not tainted 6.10.0-syzkaller-04472-g51835949dda3 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:27200 pid:20830 tgid:20830 ppid:1      flags:0x00000004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5188 [inline]
 __schedule+0xe37/0x5490 kernel/sched/core.c:6529
 __schedule_loop kernel/sched/core.c:6606 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6621
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
 rtnl_lock net/core/rtnetlink.c:79 [inline]
 rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6644
 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2550
 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
 netlink_unicast+0x544/0x830 net/netlink/af_netlink.c:1357
 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 __sys_sendto+0x47f/0x4e0 net/socket.c:2204
 __do_sys_sendto net/socket.c:2216 [inline]
 __se_sys_sendto net/socket.c:2212 [inline]
 __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2212
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f913f3777ac
RSP: 002b:00007ffcf0648e30 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f9140034620 RCX: 00007f913f3777ac
RDX: 0000000000000028 RSI: 00007f9140034670 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffcf0648e84 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003
R13: 0000000000000000 R14: 00007f9140034670 R15: 0000000000000000
 </TASK>
INFO: task syz-executor:20832 blocked for more than 152 seconds.
      Not tainted 6.10.0-syzkaller-04472-g51835949dda3 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:27552 pid:20832 tgid:20832 ppid:1      flags:0x00000004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5188 [inline]
 __schedule+0xe37/0x5490 kernel/sched/core.c:6529
 __schedule_loop kernel/sched/core.c:6606 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6621
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
 rtnl_lock net/core/rtnetlink.c:79 [inline]
 rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6644
 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2550
 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
 netlink_unicast+0x544/0x830 net/netlink/af_netlink.c:1357
 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 __sys_sendto+0x47f/0x4e0 net/socket.c:2204
 __do_sys_sendto net/socket.c:2216 [inline]
 __se_sys_sendto net/socket.c:2212 [inline]
 __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2212
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f78755777ac
RSP: 002b:00007ffdd8676c10 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f7876234620 RCX: 00007f78755777ac
RDX: 0000000000000028 RSI: 00007f7876234670 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffdd8676c64 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003
R13: 0000000000000000 R14: 00007f7876234670 R15: 0000000000000000
 </TASK>
Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings

Showing all locks held in the system:
5 locks held by kworker/0:0/8:
2 locks held by kworker/0:1/9:

Crashes (197):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/07/17 12:24 upstream 51835949dda3 215bec2d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in __lru_add_drain_all
2024/07/16 19:05 upstream d67978318827 215bec2d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in __lru_add_drain_all
2024/07/15 16:30 upstream 0c3836482481 efee4ed2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in __lru_add_drain_all
2024/07/15 08:50 upstream 0c3836482481 c605e6a2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in __lru_add_drain_all
2024/07/14 12:27 upstream 4d145e3f830b eaeb5c15 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in __lru_add_drain_all
2024/07/14 01:24 upstream d0d0cd380055 eaeb5c15 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in __lru_add_drain_all
2024/07/13 12:51 upstream 528dd46d0fc3 eaeb5c15 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in __lru_add_drain_all
2024/07/13 11:37 upstream 528dd46d0fc3 eaeb5c15 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in __lru_add_drain_all
2024/07/12 21:24 upstream e091caf99f3a eaeb5c15 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in __lru_add_drain_all
2024/07/12 19:56 upstream e091caf99f3a eaeb5c15 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in __lru_add_drain_all
2024/07/12 17:21 upstream 43db1e03c086 eaeb5c15 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in __lru_add_drain_all
2024/07/09 19:42 upstream 34afb82a3c67 79d68ada .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in __lru_add_drain_all
2024/07/09 16:18 upstream 4376e966ecb7 79d68ada .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in __lru_add_drain_all
2024/07/08 12:08 upstream 256abd8e550c cde64f7d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in __lru_add_drain_all
2024/07/08 05:40 upstream 256abd8e550c bc4ebbb5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in __lru_add_drain_all
2024/07/08 04:19 upstream 256abd8e550c bc4ebbb5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in __lru_add_drain_all
2024/07/07 16:29 upstream c6653f49e4fd bc4ebbb5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in __lru_add_drain_all
2024/07/07 13:13 upstream 22f902dfc51e bc4ebbb5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in __lru_add_drain_all
2024/07/06 13:39 upstream 1dd28064d416 bc4ebbb5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in __lru_add_drain_all
2024/07/05 09:46 upstream 661e504db04c 2a40360c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in __lru_add_drain_all
2024/07/05 06:14 upstream 661e504db04c dc6bbff0 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in __lru_add_drain_all
2024/07/05 03:38 upstream 795c58e4c7fc dc6bbff0 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in __lru_add_drain_all
2024/07/04 10:32 upstream 795c58e4c7fc 409d975c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in __lru_add_drain_all
2024/07/04 06:35 upstream 8a9c6c40432e 409d975c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in __lru_add_drain_all
2024/07/04 00:21 upstream 8a9c6c40432e 409d975c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in __lru_add_drain_all
2024/07/03 11:59 upstream e9d22f7a6655 409d975c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in __lru_add_drain_all
2024/07/02 15:26 upstream 1dfe225e9af5 8373af66 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in __lru_add_drain_all
2024/06/30 03:11 upstream 8282d5af7be8 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in __lru_add_drain_all
2024/06/29 01:11 upstream 6c0483dbfe72 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in __lru_add_drain_all
2024/06/28 23:34 upstream 6c0483dbfe72 757f06b1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in __lru_add_drain_all
2024/06/28 01:23 upstream 6d6444ba8205 b62c7d46 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in __lru_add_drain_all
2024/06/26 05:13 upstream 55027e689933 da0bd5ca .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in __lru_add_drain_all
2024/06/25 18:12 upstream 55027e689933 da0bd5ca .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in __lru_add_drain_all
2024/06/25 17:12 upstream 55027e689933 da0bd5ca .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in __lru_add_drain_all
2024/06/25 12:55 upstream 55027e689933 215eef4a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in __lru_add_drain_all
2024/06/24 22:08 upstream 626737a5791b 215eef4a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in __lru_add_drain_all
2024/06/24 17:20 upstream f2661062f16b edc5149a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in __lru_add_drain_all
2024/06/24 14:49 upstream f2661062f16b edc5149a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in __lru_add_drain_all
2024/06/24 12:10 upstream f2661062f16b edc5149a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in __lru_add_drain_all
2024/06/24 11:06 upstream f2661062f16b edc5149a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in __lru_add_drain_all
2024/06/24 09:07 upstream f2661062f16b edc5149a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in __lru_add_drain_all
2024/06/23 22:34 upstream 7c16f0a4ed1c edc5149a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in __lru_add_drain_all
2024/06/23 20:31 upstream 7c16f0a4ed1c edc5149a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in __lru_add_drain_all
2024/06/23 03:50 upstream 5f583a3162ff edc5149a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in __lru_add_drain_all
2024/06/22 15:54 upstream 35bb670d65fc edc5149a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: task hung in __lru_add_drain_all
2024/06/22 13:06 upstream 35bb670d65fc edc5149a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in __lru_add_drain_all
2024/06/22 06:55 upstream 4545981f33be edc5149a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in __lru_add_drain_all
2024/06/22 03:54 upstream 66cc544fd75c edc5149a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in __lru_add_drain_all
2024/05/15 01:57 upstream 1b10b390d945 fdb4c10c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in __lru_add_drain_all
2024/05/13 22:20 upstream cd97950cbcab fdb4c10c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in __lru_add_drain_all
2024/05/07 05:23 upstream ee5b455b0ada c035c6de .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in __lru_add_drain_all
2024/07/04 12:55 upstream 795c58e4c7fc 409d975c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 INFO: task hung in __lru_add_drain_all
2024/07/17 17:13 linux-next 797012914d2d 03114f55 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in __lru_add_drain_all
2024/07/12 08:41 linux-next 3fe121b62282 eaeb5c15 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in __lru_add_drain_all
2024/06/26 16:31 linux-next 62c97045b8f7 880c1ca1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in __lru_add_drain_all
* Struck through repros no longer work on HEAD.