protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 INFO: task syz-executor2:7534 blocked for more than 140 seconds. Not tainted 5.0.0-rc4+ #53 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor2 D20440 7534 7533 0x00000000 Call Trace: context_switch kernel/sched/core.c:2844 [inline] __schedule+0x897/0x1e60 kernel/sched/core.c:3485 schedule+0xfe/0x350 kernel/sched/core.c:3529 __rwsem_down_write_failed_common+0xa4d/0x1620 kernel/locking/rwsem-xadd.c:584 net_ratelimit: 16 callbacks suppressed protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 rwsem_down_write_failed+0xe/0x10 kernel/locking/rwsem-xadd.c:613 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0xa5/0x130 kernel/locking/rwsem.c:72 i_mmap_lock_write include/linux/fs.h:501 [inline] dup_mmap kernel/fork.c:553 [inline] dup_mm kernel/fork.c:1320 [inline] copy_mm kernel/fork.c:1375 [inline] copy_process+0x35a5/0x8860 kernel/fork.c:1917 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 _do_fork+0x1a9/0x1170 kernel/fork.c:2227 __do_sys_clone kernel/fork.c:2334 [inline] __se_sys_clone kernel/fork.c:2328 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2328 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45640a Code: f7 d8 64 89 04 25 d4 02 00 00 64 4c 8b 0c 25 10 00 00 00 31 d2 4d 8d 91 d0 02 00 00 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 f5 00 00 00 85 c0 41 89 c5 0f 85 fc 00 00 RSP: 002b:00007fff89723990 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007fff89723990 RCX: 000000000045640a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007fff897239d0 R08: 0000000000000001 R09: 000000000214c940 R10: 000000000214cc10 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002 INFO: task syz-executor3:25416 blocked for more than 140 seconds. Not tainted 5.0.0-rc4+ #53 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor3 D23288 25416 7538 0x80000000 Call Trace: context_switch kernel/sched/core.c:2844 [inline] __schedule+0x897/0x1e60 kernel/sched/core.c:3485 schedule+0xfe/0x350 kernel/sched/core.c:3529 __rwsem_down_write_failed_common+0xa4d/0x1620 kernel/locking/rwsem-xadd.c:584 rwsem_down_write_failed+0xe/0x10 kernel/locking/rwsem-xadd.c:613 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0xa5/0x130 kernel/locking/rwsem.c:72 i_mmap_lock_write include/linux/fs.h:501 [inline] unlink_file_vma+0x76/0xb0 mm/mmap.c:166 free_pgtables+0x1b7/0x2f0 mm/memory.c:394 exit_mmap+0x2e3/0x5d0 mm/mmap.c:3141 __mmput kernel/fork.c:1047 [inline] mmput+0x240/0x640 kernel/fork.c:1068 exit_mm kernel/exit.c:545 [inline] do_exit+0x9e2/0x26e0 kernel/exit.c:854 do_group_exit+0x177/0x430 kernel/exit.c:971 __do_sys_exit_group kernel/exit.c:982 [inline] __se_sys_exit_group kernel/exit.c:980 [inline] __x64_sys_exit_group+0x44/0x50 kernel/exit.c:980 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e39 Code: ad b8 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 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffdcf927c88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 000000000000001e RCX: 0000000000457e39 RDX: 0000000000411d41 RSI: fffffffffffffff7 RDI: 0000000000000000 RBP: 0000000000000000 R08: 00000000ee1cfd65 R09: 0000000000000001 R10: ffffffff8139cb1a R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00000000000007cd R15: 0000000000000003 INFO: task syz-executor0:25427 blocked for more than 140 seconds. Not tainted 5.0.0-rc4+ #53 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor0 D21992 25427 7529 0x80000000 Call Trace: context_switch kernel/sched/core.c:2844 [inline] __schedule+0x897/0x1e60 kernel/sched/core.c:3485 schedule+0xfe/0x350 kernel/sched/core.c:3529 __rwsem_down_write_failed_common+0xa4d/0x1620 kernel/locking/rwsem-xadd.c:584 rwsem_down_write_failed+0xe/0x10 kernel/locking/rwsem-xadd.c:613 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0xa5/0x130 kernel/locking/rwsem.c:72 i_mmap_lock_write include/linux/fs.h:501 [inline] unlink_file_vma+0x76/0xb0 mm/mmap.c:166 free_pgtables+0x1b7/0x2f0 mm/memory.c:394 exit_mmap+0x2e3/0x5d0 mm/mmap.c:3141 __mmput kernel/fork.c:1047 [inline] mmput+0x240/0x640 kernel/fork.c:1068 exit_mm kernel/exit.c:545 [inline] do_exit+0x9e2/0x26e0 kernel/exit.c:854 do_group_exit+0x177/0x430 kernel/exit.c:971 get_signal+0x8b4/0x19b0 kernel/signal.c:2517 do_signal+0x91/0x1ea0 arch/x86/kernel/signal.c:816 exit_to_usermode_loop+0x2f7/0x3b0 arch/x86/entry/common.c:162 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x696/0x800 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e39 Code: ad b8 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 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ff52ccd1cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 000000000073bf08 RCX: 0000000000457e39 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000073bf08 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000073bf0c R13: 00007ffc3812247f R14: 00007ff52ccd29c0 R15: 000000000073bf0c INFO: task syz-executor1:25431 blocked for more than 140 seconds. Not tainted 5.0.0-rc4+ #53 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor1 D23256 25431 7532 0x80000002 Call Trace: context_switch kernel/sched/core.c:2844 [inline] __schedule+0x897/0x1e60 kernel/sched/core.c:3485 schedule+0xfe/0x350 kernel/sched/core.c:3529 __rwsem_down_write_failed_common+0xa4d/0x1620 kernel/locking/rwsem-xadd.c:584 rwsem_down_write_failed+0xe/0x10 kernel/locking/rwsem-xadd.c:613 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0xa5/0x130 kernel/locking/rwsem.c:72 i_mmap_lock_write include/linux/fs.h:501 [inline] unlink_file_vma+0x76/0xb0 mm/mmap.c:166 free_pgtables+0x1b7/0x2f0 mm/memory.c:394 exit_mmap+0x2e3/0x5d0 mm/mmap.c:3141 __mmput kernel/fork.c:1047 [inline] mmput+0x240/0x640 kernel/fork.c:1068 exit_mm kernel/exit.c:545 [inline] do_exit+0x9e2/0x26e0 kernel/exit.c:854 do_group_exit+0x177/0x430 kernel/exit.c:971 get_signal+0x8b4/0x19b0 kernel/signal.c:2517 do_signal+0x91/0x1ea0 arch/x86/kernel/signal.c:816 exit_to_usermode_loop+0x2f7/0x3b0 arch/x86/entry/common.c:162 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x696/0x800 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e39 Code: Bad RIP value. RSP: 002b:00007f620db4cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000457e39 RDX: 0000000020000240 RSI: 0000000000008914 RDI: 0000000000000004 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f620db4d6d4 R13: 00000000004c34ff R14: 00000000004d61e8 R15: 00000000ffffffff INFO: task syz-executor5:25437 blocked for more than 140 seconds. Not tainted 5.0.0-rc4+ #53 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor5 D23288 25437 7547 0x80000000 Call Trace: context_switch kernel/sched/core.c:2844 [inline] __schedule+0x897/0x1e60 kernel/sched/core.c:3485 schedule+0xfe/0x350 kernel/sched/core.c:3529 __rwsem_down_write_failed_common+0xa4d/0x1620 kernel/locking/rwsem-xadd.c:584 rwsem_down_write_failed+0xe/0x10 kernel/locking/rwsem-xadd.c:613 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0xa5/0x130 kernel/locking/rwsem.c:72 i_mmap_lock_write include/linux/fs.h:501 [inline] unlink_file_vma+0x76/0xb0 mm/mmap.c:166 free_pgtables+0x1b7/0x2f0 mm/memory.c:394 exit_mmap+0x2e3/0x5d0 mm/mmap.c:3141 __mmput kernel/fork.c:1047 [inline] mmput+0x240/0x640 kernel/fork.c:1068 net_ratelimit: 24 callbacks suppressed protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 exit_mm kernel/exit.c:545 [inline] do_exit+0x9e2/0x26e0 kernel/exit.c:854 do_group_exit+0x177/0x430 kernel/exit.c:971 __do_sys_exit_group kernel/exit.c:982 [inline] __se_sys_exit_group kernel/exit.c:980 [inline] __x64_sys_exit_group+0x44/0x50 kernel/exit.c:980 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e39 Code: Bad RIP value. RSP: 002b:00007fff11392678 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 000000000000001e RCX: 0000000000457e39 RDX: 0000000000411d41 RSI: fffffffffffffff7 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000087709469 R09: 0000000000000001 R10: ffffffff8139cb1a R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00000000000007af R15: 0000000000000005 Showing all locks held in the system: 1 lock held by khungtaskd/1040: #0: 0000000034b3f5eb (rcu_read_lock){....}, at: debug_show_all_locks+0xc6/0x41d kernel/locking/lockdep.c:4389 4 locks held by rs:main Q:Reg/7400: 1 lock held by rsyslogd/7402: #0: 00000000ce3deb3e (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x1b3/0x1f0 fs/file.c:795 2 locks held by getty/7492: #0: 000000004c831cf0 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000321280c1 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/7493: #0: 00000000f81cee83 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000f92d2e3a (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/7494: #0: 0000000096d8c257 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000029510b3 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/7495: #0: 000000003aff0ca2 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 0000000077f8255d (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/7496: #0: 0000000065561a33 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 0000000065844971 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/7497: #0: 00000000d2a21a92 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 000000008ce54dc1 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/7498: #0: 00000000a4d30174 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 0000000011c0163a (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 1 lock held by syz-executor0/7528: #0: 00000000faea9281 (&mapping->i_mmap_rwsem){++++}, at: i_mmap_lock_write include/linux/fs.h:501 [inline] #0: 00000000faea9281 (&mapping->i_mmap_rwsem){++++}, at: unlink_file_vma+0x76/0xb0 mm/mmap.c:166 1 lock held by syz-executor1/7531: #0: 00000000faea9281 (&mapping->i_mmap_rwsem){++++}, at: i_mmap_lock_write include/linux/fs.h:501 [inline] #0: 00000000faea9281 (&mapping->i_mmap_rwsem){++++}, at: unlink_file_vma+0x76/0xb0 mm/mmap.c:166 1 lock held by syz-executor2/7533: #0: 00000000faea9281 (&mapping->i_mmap_rwsem){++++}, at: i_mmap_lock_write include/linux/fs.h:501 [inline] #0: 00000000faea9281 (&mapping->i_mmap_rwsem){++++}, at: unlink_file_vma+0x76/0xb0 mm/mmap.c:166 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 4 locks held by syz-executor2/7534: #0: 000000005fd6412f (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:472 [inline] #0: 000000005fd6412f (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #0: 000000005fd6412f (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #0: 000000005fd6412f (&dup_mmap_sem){++++}, at: copy_process+0x3041/0x8860 kernel/fork.c:1917 #1: 000000003a167a35 (&mm->mmap_sem){++++}, at: dup_mmap kernel/fork.c:473 [inline] #1: 000000003a167a35 (&mm->mmap_sem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #1: 000000003a167a35 (&mm->mmap_sem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #1: 000000003a167a35 (&mm->mmap_sem){++++}, at: copy_process+0x305d/0x8860 kernel/fork.c:1917 #2: 00000000018c064d (&mm->mmap_sem/1){+.+.}, at: dup_mmap kernel/fork.c:482 [inline] #2: 00000000018c064d (&mm->mmap_sem/1){+.+.}, at: dup_mm kernel/fork.c:1320 [inline] #2: 00000000018c064d (&mm->mmap_sem/1){+.+.}, at: copy_mm kernel/fork.c:1375 [inline] #2: 00000000018c064d (&mm->mmap_sem/1){+.+.}, at: copy_process+0x30b5/0x8860 kernel/fork.c:1917 #3: 00000000faea9281 (&mapping->i_mmap_rwsem){++++}, at: i_mmap_lock_write include/linux/fs.h:501 [inline] #3: 00000000faea9281 (&mapping->i_mmap_rwsem){++++}, at: dup_mmap kernel/fork.c:553 [inline] #3: 00000000faea9281 (&mapping->i_mmap_rwsem){++++}, at: dup_mm kernel/fork.c:1320 [inline] #3: 00000000faea9281 (&mapping->i_mmap_rwsem){++++}, at: copy_mm kernel/fork.c:1375 [inline] #3: 00000000faea9281 (&mapping->i_mmap_rwsem){++++}, at: copy_process+0x35a5/0x8860 kernel/fork.c:1917 1 lock held by syz-executor3/7535: #0: 00000000faea9281 (&mapping->i_mmap_rwsem){++++}, at: i_mmap_lock_write include/linux/fs.h:501 [inline] #0: 00000000faea9281 (&mapping->i_mmap_rwsem){++++}, at: unlink_file_vma+0x76/0xb0 mm/mmap.c:166 1 lock held by syz-executor4/7540: #0: 00000000faea9281 (&mapping->i_mmap_rwsem){++++}, at: i_mmap_lock_write include/linux/fs.h:501 [inline] #0: 00000000faea9281 (&mapping->i_mmap_rwsem){++++}, at: unlink_file_vma+0x76/0xb0 mm/mmap.c:166 1 lock held by syz-executor5/7546: #0: 00000000faea9281 (&mapping->i_mmap_rwsem){++++}, at: i_mmap_lock_write include/linux/fs.h:501 [inline] #0: 00000000faea9281 (&mapping->i_mmap_rwsem){++++}, at: unlink_file_vma+0x76/0xb0 mm/mmap.c:166 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 1 lock held by syz-executor1/17465: #0: 00000000faea9281 (&mapping->i_mmap_rwsem){++++}, at: i_mmap_lock_write include/linux/fs.h:501 [inline] #0: 00000000faea9281 (&mapping->i_mmap_rwsem){++++}, at: unlink_file_vma+0x76/0xb0 mm/mmap.c:166 1 lock held by syz-executor3/25416: #0: 00000000faea9281 (&mapping->i_mmap_rwsem){++++}, at: i_mmap_lock_write include/linux/fs.h:501 [inline] #0: 00000000faea9281 (&mapping->i_mmap_rwsem){++++}, at: unlink_file_vma+0x76/0xb0 mm/mmap.c:166 1 lock held by syz-executor4/25428: #0: 00000000faea9281 (&mapping->i_mmap_rwsem){++++}, at: i_mmap_lock_write include/linux/fs.h:501 [inline] #0: 00000000faea9281 (&mapping->i_mmap_rwsem){++++}, at: unlink_file_vma+0x76/0xb0 mm/mmap.c:166 1 lock held by syz-executor0/25427: #0: 00000000faea9281 (&mapping->i_mmap_rwsem){++++}, at: i_mmap_lock_write include/linux/fs.h:501 [inline] #0: 00000000faea9281 (&mapping->i_mmap_rwsem){++++}, at: unlink_file_vma+0x76/0xb0 mm/mmap.c:166 1 lock held by syz-executor1/25431: #0: 00000000faea9281 (&mapping->i_mmap_rwsem){++++}, at: i_mmap_lock_write include/linux/fs.h:501 [inline] #0: 00000000faea9281 (&mapping->i_mmap_rwsem){++++}, at: unlink_file_vma+0x76/0xb0 mm/mmap.c:166 1 lock held by syz-executor5/25437: #0: 00000000faea9281 (&mapping->i_mmap_rwsem){++++}, at: i_mmap_lock_write include/linux/fs.h:501 [inline] #0: 00000000faea9281 (&mapping->i_mmap_rwsem){++++}, at: unlink_file_vma+0x76/0xb0 mm/mmap.c:166 5 locks held by syz-executor2/25441: ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1040 Comm: khungtaskd Not tainted 5.0.0-rc4+ #53 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+0x1db/0x2d0 lib/dump_stack.c:113 nmi_cpu_backtrace.cold+0x63/0xa4 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1be/0x236 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:203 [inline] watchdog+0xbbb/0x1170 kernel/hung_task.c:287 kthread+0x357/0x430 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Sending NMI from CPU 1 to CPUs 0: INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.328 msecs NMI backtrace for cpu 0 CPU: 0 PID: 25441 Comm: syz-executor2 Not tainted 5.0.0-rc4+ #53 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:23 [inline] RIP: 0010:static_key_false include/linux/jump_label.h:200 [inline] RIP: 0010:native_write_msr+0x6/0x30 arch/x86/include/asm/msr.h:164 Code: d6 47 88 e9 5c 2f e9 06 0f 21 f8 c3 0f 21 c0 c3 0f 21 c8 c3 0f 21 d0 c3 0f 21 d8 c3 0f 21 f0 c3 0f 0b 66 90 89 f9 89 f0 0f 30 <0f> 1f 44 00 00 c3 55 48 c1 e2 20 89 f6 48 89 e5 48 09 d6 31 d2 e8 RSP: 0000:ffff8880ae607da0 EFLAGS: 00000046 RAX: 0000000000000119 RBX: 0000000000000838 RCX: 0000000000000838 RDX: 0000000000000000 RSI: 0000000000000119 RDI: 0000000000000838 RBP: ffff8880ae607db8 R08: ffff88803959c080 R09: ffffffff8a9ad01d R10: ffffffff8a9ad010 R11: 0000000000000001 R12: ffff8880ae61f140 R13: 0000000000000119 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f2af4de6700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000457e0f CR3: 00000000539cd000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: apic_write arch/x86/include/asm/apic.h:397 [inline] lapic_next_event+0x57/0x90 arch/x86/kernel/apic/apic.c:467 clockevents_program_event+0x266/0x380 kernel/time/clockevents.c:334 tick_program_event+0xb4/0x130 kernel/time/tick-oneshot.c:44 hrtimer_interrupt+0x369/0x770 kernel/time/hrtimer.c:1522 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1035 [inline] smp_apic_timer_interrupt+0x18d/0x760 arch/x86/kernel/apic/apic.c:1060 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 RIP: 0010:lock_release+0x75/0xc40 kernel/locking/lockdep.c:3850 Code: 04 13 48 c7 85 48 ff ff ff 40 43 64 81 65 4c 8b 34 25 40 ee 01 00 c7 00 f1 f1 f1 f1 49 8d be 7c 08 00 00 c7 40 04 f1 f1 04 f2 40 08 00 f2 f2 f2 c7 40 0c 00 f3 f3 f3 65 48 8b 04 25 28 00 00 RSP: 0000:ffff88809efd71a0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: ffffed1013dfae3b RBX: 1ffff11013dfae3b RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff88803959c8fc RBP: ffff88809efd72a0 R08: 1ffff11015cc5b97 R09: ffffed1015cc5b98 R10: ffffed1015cc5b97 R11: ffff8880ae62dcbb R12: ffffffff899a4240 R13: ffffffff81cd8753 R14: ffff88803959c080 R15: ffff88809efd7278 rcu_lock_release include/linux/rcupdate.h:228 [inline] rcu_read_unlock include/linux/rcupdate.h:661 [inline] __unlock_page_memcg+0x70/0x100 mm/memcontrol.c:1932 unlock_page_memcg+0x2c/0x40 mm/memcontrol.c:1941 page_remove_file_rmap mm/rmap.c:1251 [inline] page_remove_rmap+0x82a/0x1990 mm/rmap.c:1302 zap_pte_range mm/memory.c:1090 [inline] zap_pmd_range mm/memory.c:1192 [inline] zap_pud_range mm/memory.c:1221 [inline] zap_p4d_range mm/memory.c:1242 [inline] unmap_page_range+0xf0f/0x25a0 mm/memory.c:1263 unmap_single_vma+0x19d/0x300 mm/memory.c:1308 zap_page_range_single+0x46e/0x790 mm/memory.c:1388 unmap_mapping_range_vma mm/memory.c:2557 [inline] unmap_mapping_range_tree mm/memory.c:2578 [inline] unmap_mapping_pages+0x3bb/0x5c0 mm/memory.c:2610 unmap_mapping_range+0x48/0x60 mm/memory.c:2645 truncate_pagecache+0x57/0x90 mm/truncate.c:801 truncate_setsize+0x74/0xb0 mm/truncate.c:827 simple_setattr+0xe7/0x110 fs/libfs.c:409 notify_change+0xeaa/0x1080 fs/attr.c:336 do_truncate+0x1ba/0x2d0 fs/open.c:63 do_sys_ftruncate+0x488/0x550 fs/open.c:194 __do_sys_ftruncate fs/open.c:204 [inline] __se_sys_ftruncate fs/open.c:202 [inline] __x64_sys_ftruncate+0x59/0x80 fs/open.c:202 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e39 Code: ad b8 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 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f2af4de5c78 EFLAGS: 00000246 ORIG_RAX: 000000000000004d RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 0000000000457e39 RDX: 0000000000000000 RSI: 000000000000fd6f RDI: 0000000000000000 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2af4de66d4 R13: 00000000004be6a6 R14: 00000000004cf0d8 R15: 00000000ffffffff