INFO: task syz-executor.1:7860 blocked for more than 143 seconds. Not tainted 5.5.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.1 D30216 7860 7857 0x80000000 Call Trace: context_switch kernel/sched/core.c:3385 [inline] __schedule+0x856/0x1900 kernel/sched/core.c:4081 schedule+0xc3/0x2b0 kernel/sched/core.c:4155 rwsem_down_read_slowpath+0x568/0xfd0 kernel/locking/rwsem.c:1102 __down_read kernel/locking/rwsem.c:1344 [inline] down_read+0x1f5/0x430 kernel/locking/rwsem.c:1497 acct_collect+0xd3/0x7b0 kernel/acct.c:542 do_exit+0x507/0x2bf0 kernel/exit.c:780 do_group_exit+0xf4/0x2e0 kernel/exit.c:899 __do_sys_exit_group kernel/exit.c:910 [inline] __se_sys_exit_group kernel/exit.c:908 [inline] __x64_sys_exit_group+0x39/0x40 kernel/exit.c:908 do_syscall_64+0xca/0x5f0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459829 Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fa520029688 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 000000000000000b RCX: 0000000000459829 RDX: 0000000000459829 RSI: 00007fa5200296c0 RDI: 000000000000000b RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 00007fa52002a6d4 R13: 00000000004bfce6 R14: 00000000004d1a38 R15: 00000000ffffffff INFO: task syz-executor.2:7864 blocked for more than 144 seconds. Not tainted 5.5.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.2 D30048 7864 7863 0x80000000 Call Trace: context_switch kernel/sched/core.c:3385 [inline] __schedule+0x856/0x1900 kernel/sched/core.c:4081 schedule+0xc3/0x2b0 kernel/sched/core.c:4155 rwsem_down_read_slowpath+0x568/0xfd0 kernel/locking/rwsem.c:1102 __down_read kernel/locking/rwsem.c:1344 [inline] down_read+0x1f5/0x430 kernel/locking/rwsem.c:1497 acct_collect+0xd3/0x7b0 kernel/acct.c:542 do_exit+0x507/0x2bf0 kernel/exit.c:780 do_group_exit+0xf4/0x2e0 kernel/exit.c:899 __do_sys_exit_group kernel/exit.c:910 [inline] __se_sys_exit_group kernel/exit.c:908 [inline] __x64_sys_exit_group+0x39/0x40 kernel/exit.c:908 do_syscall_64+0xca/0x5f0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459829 Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f0c3c10a688 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 000000000000000b RCX: 0000000000459829 RDX: 0000000000459829 RSI: 00007f0c3c10a6c0 RDI: 000000000000000b RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 00007f0c3c10b6d4 R13: 00000000004bfce6 R14: 00000000004d1a38 R15: 00000000ffffffff INFO: task syz-executor.4:7872 blocked for more than 145 seconds. Not tainted 5.5.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D30216 7872 7871 0x80000000 Call Trace: context_switch kernel/sched/core.c:3385 [inline] __schedule+0x856/0x1900 kernel/sched/core.c:4081 schedule+0xc3/0x2b0 kernel/sched/core.c:4155 rwsem_down_read_slowpath+0x568/0xfd0 kernel/locking/rwsem.c:1102 __down_read kernel/locking/rwsem.c:1344 [inline] down_read+0x1f5/0x430 kernel/locking/rwsem.c:1497 acct_collect+0xd3/0x7b0 kernel/acct.c:542 do_exit+0x507/0x2bf0 kernel/exit.c:780 do_group_exit+0xf4/0x2e0 kernel/exit.c:899 __do_sys_exit_group kernel/exit.c:910 [inline] __se_sys_exit_group kernel/exit.c:908 [inline] __x64_sys_exit_group+0x39/0x40 kernel/exit.c:908 do_syscall_64+0xca/0x5f0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459829 Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fcbd3790688 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 000000000000000b RCX: 0000000000459829 RDX: 0000000000459829 RSI: 00007fcbd37906c0 RDI: 000000000000000b RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 00007fcbd37916d4 R13: 00000000004bfce6 R14: 00000000004d1a38 R15: 00000000ffffffff INFO: task syz-executor.5:7879 blocked for more than 146 seconds. Not tainted 5.5.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D30216 7879 7878 0x80000000 Call Trace: context_switch kernel/sched/core.c:3385 [inline] __schedule+0x856/0x1900 kernel/sched/core.c:4081 schedule+0xc3/0x2b0 kernel/sched/core.c:4155 rwsem_down_read_slowpath+0x568/0xfd0 kernel/locking/rwsem.c:1102 __down_read kernel/locking/rwsem.c:1344 [inline] down_read+0x1f5/0x430 kernel/locking/rwsem.c:1497 acct_collect+0xd3/0x7b0 kernel/acct.c:542 do_exit+0x507/0x2bf0 kernel/exit.c:780 do_group_exit+0xf4/0x2e0 kernel/exit.c:899 __do_sys_exit_group kernel/exit.c:910 [inline] __se_sys_exit_group kernel/exit.c:908 [inline] __x64_sys_exit_group+0x39/0x40 kernel/exit.c:908 do_syscall_64+0xca/0x5f0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459829 Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f5b6cea4688 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 000000000000000b RCX: 0000000000459829 RDX: 0000000000459829 RSI: 00007f5b6cea46c0 RDI: 000000000000000b RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 00007f5b6cea56d4 R13: 00000000004bfce6 R14: 00000000004d1a38 R15: 00000000ffffffff INFO: task syz-executor.3:7891 blocked for more than 147 seconds. Not tainted 5.5.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.3 D30216 7891 7890 0x80000000 Call Trace: context_switch kernel/sched/core.c:3385 [inline] __schedule+0x856/0x1900 kernel/sched/core.c:4081 schedule+0xc3/0x2b0 kernel/sched/core.c:4155 rwsem_down_read_slowpath+0x568/0xfd0 kernel/locking/rwsem.c:1102 __down_read kernel/locking/rwsem.c:1344 [inline] down_read+0x1f5/0x430 kernel/locking/rwsem.c:1497 acct_collect+0xd3/0x7b0 kernel/acct.c:542 do_exit+0x507/0x2bf0 kernel/exit.c:780 do_group_exit+0xf4/0x2e0 kernel/exit.c:899 __do_sys_exit_group kernel/exit.c:910 [inline] __se_sys_exit_group kernel/exit.c:908 [inline] __x64_sys_exit_group+0x39/0x40 kernel/exit.c:908 do_syscall_64+0xca/0x5f0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459829 Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ff061e8a688 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 000000000000000b RCX: 0000000000459829 RDX: 0000000000459829 RSI: 00007ff061e8a6c0 RDI: 000000000000000b RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 00007ff061e8b6d4 R13: 00000000004bfce6 R14: 00000000004d1a38 R15: 00000000ffffffff INFO: task syz-executor.0:7897 blocked for more than 148 seconds. Not tainted 5.5.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D30216 7897 7896 0x80000000 Call Trace: context_switch kernel/sched/core.c:3385 [inline] __schedule+0x856/0x1900 kernel/sched/core.c:4081 schedule+0xc3/0x2b0 kernel/sched/core.c:4155 rwsem_down_read_slowpath+0x568/0xfd0 kernel/locking/rwsem.c:1102 __down_read kernel/locking/rwsem.c:1344 [inline] down_read+0x1f5/0x430 kernel/locking/rwsem.c:1497 acct_collect+0xd3/0x7b0 kernel/acct.c:542 do_exit+0x507/0x2bf0 kernel/exit.c:780 do_group_exit+0xf4/0x2e0 kernel/exit.c:899 __do_sys_exit_group kernel/exit.c:910 [inline] __se_sys_exit_group kernel/exit.c:908 [inline] __x64_sys_exit_group+0x39/0x40 kernel/exit.c:908 do_syscall_64+0xca/0x5f0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459829 Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f8b174e2688 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 000000000000000b RCX: 0000000000459829 RDX: 0000000000459829 RSI: 00007f8b174e26c0 RDI: 000000000000000b RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 00007f8b174e36d4 R13: 00000000004bfce6 R14: 00000000004d1a38 R15: 00000000ffffffff Showing all locks held in the system: 1 lock held by khungtaskd/1002: #0: ffffffff8859c300 (rcu_read_lock){....}, at: debug_show_all_locks+0x5b/0x275 kernel/locking/lockdep.c:5334 1 lock held by rsyslogd/7614: #0: ffff88809fbaa1a0 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xa3/0xc0 fs/file.c:801 2 locks held by getty/7704: #0: ffff8880a8504090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 drivers/tty/tty_ldsem.c:340 #1: ffffc90005f152e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x17d0 drivers/tty/n_tty.c:2156 2 locks held by getty/7705: #0: ffff888095009090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 drivers/tty/tty_ldsem.c:340 #1: ffffc90005f112e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x17d0 drivers/tty/n_tty.c:2156 2 locks held by getty/7706: #0: ffff888093956090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 drivers/tty/tty_ldsem.c:340 #1: ffffc90005ee92e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x17d0 drivers/tty/n_tty.c:2156 2 locks held by getty/7707: #0: ffff8880a10c8090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 drivers/tty/tty_ldsem.c:340 #1: ffffc90005f012e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x17d0 drivers/tty/n_tty.c:2156 2 locks held by getty/7708: #0: ffff8880a11f8090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 drivers/tty/tty_ldsem.c:340 #1: ffffc90005f0d2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x17d0 drivers/tty/n_tty.c:2156 2 locks held by getty/7709: #0: ffff88808cffd090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 drivers/tty/tty_ldsem.c:340 #1: ffffc90005f192e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x17d0 drivers/tty/n_tty.c:2156 2 locks held by getty/7710: #0: ffff8880979e5090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x2d/0x40 drivers/tty/tty_ldsem.c:340 #1: ffffc90005ee12e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x1ee/0x17d0 drivers/tty/n_tty.c:2156 1 lock held by syz-executor.1/7852: #0: ffff88808e5f1498 (&mm->mmap_sem#2){++++}, at: exit_mm kernel/exit.c:451 [inline] #0: ffff88808e5f1498 (&mm->mmap_sem#2){++++}, at: do_exit+0x5e9/0x2bf0 kernel/exit.c:788 1 lock held by syz-executor.1/7855: #0: ffff88808e5f1498 (&mm->mmap_sem#2){++++}, at: exit_mm kernel/exit.c:451 [inline] #0: ffff88808e5f1498 (&mm->mmap_sem#2){++++}, at: do_exit+0x5e9/0x2bf0 kernel/exit.c:788 1 lock held by syz-executor.1/7857: #0: ffff88808e5f1498 (&mm->mmap_sem#2){++++}, at: acct_collect+0xd3/0x7b0 kernel/acct.c:542 6 locks held by syz-executor.1/7856: 1 lock held by syz-executor.2/7858: #0: ffff8880a98d74d8 (&mm->mmap_sem#2){++++}, at: exit_mm kernel/exit.c:451 [inline] #0: ffff8880a98d74d8 (&mm->mmap_sem#2){++++}, at: do_exit+0x5e9/0x2bf0 kernel/exit.c:788 1 lock held by syz-executor.2/7861: #0: ffff8880a98d74d8 (&mm->mmap_sem#2){++++}, at: exit_mm kernel/exit.c:451 [inline] #0: ffff8880a98d74d8 (&mm->mmap_sem#2){++++}, at: do_exit+0x5e9/0x2bf0 kernel/exit.c:788 1 lock held by syz-executor.2/7863: #0: ffff8880a98d74d8 (&mm->mmap_sem#2){++++}, at: acct_collect+0xd3/0x7b0 kernel/acct.c:542 1 lock held by syz-executor.1/7860: #0: ffff88808e5f1498 (&mm->mmap_sem#2){++++}, at: acct_collect+0xd3/0x7b0 kernel/acct.c:542 1 lock held by syz-executor.2/7862: 1 lock held by syz-executor.2/7864: #0: ffff8880a98d74d8 (&mm->mmap_sem#2){++++}, at: acct_collect+0xd3/0x7b0 kernel/acct.c:542 1 lock held by syz-executor.4/7867: #0: ffff88809759a818 (&mm->mmap_sem#2){++++}, at: exit_mm kernel/exit.c:451 [inline] #0: ffff88809759a818 (&mm->mmap_sem#2){++++}, at: do_exit+0x5e9/0x2bf0 kernel/exit.c:788 1 lock held by syz-executor.4/7869: #0: ffff88809759a818 (&mm->mmap_sem#2){++++}, at: exit_mm kernel/exit.c:451 [inline] #0: ffff88809759a818 (&mm->mmap_sem#2){++++}, at: do_exit+0x5e9/0x2bf0 kernel/exit.c:788 1 lock held by syz-executor.4/7871: #0: ffff88809759a818 (&mm->mmap_sem#2){++++}, at: acct_collect+0xd3/0x7b0 kernel/acct.c:542 2 locks held by syz-executor.4/7870: 1 lock held by syz-executor.4/7872: #0: ffff88809759a818 (&mm->mmap_sem#2){++++}, at: acct_collect+0xd3/0x7b0 kernel/acct.c:542 1 lock held by syz-executor.5/7874: #0: ffff88809fbc2b98 (&mm->mmap_sem#2){++++}, at: exit_mm kernel/exit.c:451 [inline] #0: ffff88809fbc2b98 (&mm->mmap_sem#2){++++}, at: do_exit+0x5e9/0x2bf0 kernel/exit.c:788 1 lock held by syz-executor.5/7875: #0: ffff88809fbc2b98 (&mm->mmap_sem#2){++++}, at: exit_mm kernel/exit.c:451 [inline] #0: ffff88809fbc2b98 (&mm->mmap_sem#2){++++}, at: do_exit+0x5e9/0x2bf0 kernel/exit.c:788 1 lock held by syz-executor.5/7878: #0: ffff88809fbc2b98 (&mm->mmap_sem#2){++++}, at: acct_collect+0xd3/0x7b0 kernel/acct.c:542 2 locks held by syz-executor.5/7877: 1 lock held by syz-executor.5/7879: #0: ffff88809fbc2b98 (&mm->mmap_sem#2){++++}, at: acct_collect+0xd3/0x7b0 kernel/acct.c:542 1 lock held by syz-executor.3/7886: #0: ffff888097351058 (&mm->mmap_sem#2){++++}, at: exit_mm kernel/exit.c:451 [inline] #0: ffff888097351058 (&mm->mmap_sem#2){++++}, at: do_exit+0x5e9/0x2bf0 kernel/exit.c:788 1 lock held by syz-executor.3/7888: #0: ffff888097351058 (&mm->mmap_sem#2){++++}, at: exit_mm kernel/exit.c:451 [inline] #0: ffff888097351058 (&mm->mmap_sem#2){++++}, at: do_exit+0x5e9/0x2bf0 kernel/exit.c:788 1 lock held by syz-executor.3/7890: #0: ffff888097351058 (&mm->mmap_sem#2){++++}, at: acct_collect+0xd3/0x7b0 kernel/acct.c:542 1 lock held by syz-executor.3/7889: 1 lock held by syz-executor.3/7891: #0: ffff888097351058 (&mm->mmap_sem#2){++++}, at: acct_collect+0xd3/0x7b0 kernel/acct.c:542 1 lock held by syz-executor.0/7893: #0: ffff8880985c8298 (&mm->mmap_sem#2){++++}, at: exit_mm kernel/exit.c:451 [inline] #0: ffff8880985c8298 (&mm->mmap_sem#2){++++}, at: do_exit+0x5e9/0x2bf0 kernel/exit.c:788 1 lock held by syz-executor.0/7894: #0: ffff8880985c8298 (&mm->mmap_sem#2){++++}, at: exit_mm kernel/exit.c:451 [inline] #0: ffff8880985c8298 (&mm->mmap_sem#2){++++}, at: do_exit+0x5e9/0x2bf0 kernel/exit.c:788 1 lock held by syz-executor.0/7896: #0: ffff8880985c8298 (&mm->mmap_sem#2){++++}, at: acct_collect+0xd3/0x7b0 kernel/acct.c:542 2 locks held by syz-executor.0/7895: 1 lock held by syz-executor.0/7897: #0: ffff8880985c8298 (&mm->mmap_sem#2){++++}, at: acct_collect+0xd3/0x7b0 kernel/acct.c:542 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1002 Comm: khungtaskd Not tainted 5.5.0-rc6-syzkaller #0 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+0x12d/0x187 lib/dump_stack.c:118 nmi_cpu_backtrace.cold.7+0x4b/0x84 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x18b/0x1b7 lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:205 [inline] watchdog+0x611/0xc50 kernel/hung_task.c:289 kthread+0x331/0x3f0 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 7862 Comm: syz-executor.2 Not tainted 5.5.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__lock_acquire+0x277/0x4ef0 kernel/locking/lockdep.c:3892 Code: ea 03 0f b6 14 02 84 d2 74 09 80 fa 03 0f 8e 13 13 00 00 41 0f b7 42 20 49 8d 7a 08 48 89 fa 48 c1 ea 03 66 25 00 e0 44 09 f8 <66> 41 89 42 20 48 b8 00 00 00 00 00 fc ff df 80 3c 02 00 0f 85 c2 RSP: 0018:ffff88807ed07740 EFLAGS: 00000002 RAX: 0000000000000834 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 1ffff1100fd8f149 RSI: 1ffff1100fd8f147 RDI: ffff88807ec78a48 RBP: ffff88807ed07860 R08: 0000000000000001 R09: 0000000000000000 R10: ffff88807ec78a40 R11: ffff88807ec78180 R12: 0000000000000834 R13: ffff888096955358 R14: 0000000000000000 R15: 0000000000000834 FS: 00007f0c3c12c700(0000) GS:ffff8880aec00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000222e000 CR3: 000000009f7b5000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x194/0x410 kernel/locking/lockdep.c:4485 __mutex_lock_common kernel/locking/mutex.c:956 [inline] __mutex_lock+0x155/0x1410 kernel/locking/mutex.c:1103 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1118 perf_mmap+0x6e6/0x1710 kernel/events/core.c:5889 call_mmap include/linux/fs.h:1907 [inline] mmap_region+0x9ba/0x1480 mm/mmap.c:1778 do_mmap+0x5d6/0xf70 mm/mmap.c:1549 do_mmap_pgoff include/linux/mm.h:2338 [inline] vm_mmap_pgoff+0x195/0x210 mm/util.c:506 ksys_mmap_pgoff+0x3c7/0x650 mm/mmap.c:1601 __do_sys_mmap arch/x86/kernel/sys_x86_64.c:100 [inline] __se_sys_mmap arch/x86/kernel/sys_x86_64.c:91 [inline] __x64_sys_mmap+0xe9/0x1b0 arch/x86/kernel/sys_x86_64.c:91 do_syscall_64+0xca/0x5f0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459829 Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f0c3c12bc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 0000000000459829 RDX: 0000000000000000 RSI: 0000000000003000 RDI: 0000000020ffd000 RBP: 000000000075bf20 R08: 0000000000000003 R09: 0000000000000000 R10: 0000000000000011 R11: 0000000000000246 R12: 00007f0c3c12c6d4 R13: 00000000004c5d1b R14: 00000000004da750 R15: 00000000ffffffff