protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 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-executor2:25950 blocked for more than 140 seconds. Not tainted 5.0.0-rc5 #60 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor2 D27904 25950 7709 0x00000004 Call Trace: context_switch kernel/sched/core.c:2844 [inline] __schedule+0x817/0x1cc0 kernel/sched/core.c:3485 schedule+0x92/0x180 kernel/sched/core.c:3529 request_wait_answer+0x42f/0x7c0 fs/fuse/dev.c:530 __fuse_request_send+0x12b/0x1d0 fs/fuse/dev.c:550 fuse_request_send+0x60/0xa0 fs/fuse/dev.c:563 fuse_simple_request+0x2f6/0x730 fs/fuse/dev.c:621 fuse_do_getattr+0x24e/0xc80 fs/fuse/dir.c:908 fuse_perm_getattr+0x3d/0x60 fs/fuse/dir.c:1091 fuse_permission+0x3d5/0x530 fs/fuse/dir.c:1128 do_inode_permission fs/namei.c:386 [inline] inode_permission+0x36d/0x570 fs/namei.c:451 may_lookup fs/namei.c:1702 [inline] link_path_walk.part.0+0x9d6/0x1340 fs/namei.c:2084 link_path_walk fs/namei.c:2072 [inline] path_openat+0x1f9/0x4690 fs/namei.c:3533 do_filp_open+0x1a1/0x280 fs/namei.c:3564 do_sys_open+0x3fe/0x5d0 fs/open.c:1063 __do_sys_open fs/open.c:1081 [inline] __se_sys_open fs/open.c:1076 [inline] __x64_sys_open+0x7e/0xc0 fs/open.c:1076 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x411f21 Code: 10 48 8b 44 24 50 48 89 04 24 48 8b 44 24 48 48 89 44 24 08 e8 10 b2 04 00 48 8b 44 24 40 48 89 84 24 c8 00 00 00 48 8b ac 24 <80> 00 00 00 48 81 c4 88 00 00 00 c3 48 8b bc 24 90 00 00 00 48 89 RSP: 002b:00007f21adaa97a0 EFLAGS: 00000293 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 6666666666666667 RCX: 0000000000411f21 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00007f21adaa9850 RBP: 000000000073bf00 R08: 000000000000000f R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007f21adaaa6d4 R13: 00000000004c69c3 R14: 00000000004dbe88 R15: 00000000ffffffff INFO: task syz-executor2:25952 blocked for more than 140 seconds. Not tainted 5.0.0-rc5 #60 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor2 D28944 25952 7709 0x00000004 Call Trace: context_switch kernel/sched/core.c:2844 [inline] __schedule+0x817/0x1cc0 kernel/sched/core.c:3485 schedule+0x92/0x180 kernel/sched/core.c:3529 request_wait_answer+0x42f/0x7c0 fs/fuse/dev.c:530 __fuse_request_send+0x12b/0x1d0 fs/fuse/dev.c:550 fuse_request_send+0x60/0xa0 fs/fuse/dev.c:563 fuse_simple_request+0x2f6/0x730 fs/fuse/dev.c:621 fuse_access+0x247/0x310 fs/fuse/dir.c:1077 fuse_permission+0x465/0x530 fs/fuse/dir.c:1151 do_inode_permission fs/namei.c:386 [inline] inode_permission+0x36d/0x570 fs/namei.c:451 ksys_chdir+0xdc/0x1f0 fs/open.c:443 __do_sys_chdir fs/open.c:461 [inline] __se_sys_chdir fs/open.c:459 [inline] __x64_sys_chdir+0x31/0x40 fs/open.c:459 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e39 Code: 44 24 18 00 00 00 00 e8 a5 b0 fc ff 48 8b 44 24 38 48 89 04 24 e8 d7 77 fb ff 48 8b 6c 24 40 48 83 c4 48 c3 48 89 d1 eb 90 e8 <73> 20 00 00 e9 7e fe ff ff cc cc cc cc cc cc cc cc cc cc cc cc cc RSP: 002b:00007f21ada88c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000050 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000457e39 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000480 RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f21ada896d4 R13: 00000000004bd630 R14: 00000000004ce6e8 R15: 00000000ffffffff INFO: task syz-executor2:25953 blocked for more than 140 seconds. Not tainted 5.0.0-rc5 #60 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor2 D28432 25953 7709 0x00000004 Call Trace: context_switch kernel/sched/core.c:2844 [inline] __schedule+0x817/0x1cc0 kernel/sched/core.c:3485 schedule+0x92/0x180 kernel/sched/core.c:3529 request_wait_answer+0x42f/0x7c0 fs/fuse/dev.c:530 __fuse_request_send+0x12b/0x1d0 fs/fuse/dev.c:550 fuse_request_send+0x60/0xa0 fs/fuse/dev.c:563 fuse_simple_request+0x2f6/0x730 fs/fuse/dev.c:621 fuse_do_getattr+0x24e/0xc80 fs/fuse/dir.c:908 fuse_perm_getattr+0x3d/0x60 fs/fuse/dir.c:1091 fuse_permission+0x3d5/0x530 fs/fuse/dir.c:1128 do_inode_permission fs/namei.c:386 [inline] inode_permission+0x36d/0x570 fs/namei.c:451 may_lookup fs/namei.c:1702 [inline] link_path_walk.part.0+0x9d6/0x1340 fs/namei.c:2084 link_path_walk fs/namei.c:2072 [inline] path_openat+0x1f9/0x4690 fs/namei.c:3533 do_filp_open+0x1a1/0x280 fs/namei.c:3564 do_sys_open+0x3fe/0x5d0 fs/open.c:1063 __do_sys_openat fs/open.c:1090 [inline] __se_sys_openat fs/open.c:1084 [inline] __x64_sys_openat+0x9d/0x100 fs/open.c:1084 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e39 Code: 44 24 18 00 00 00 00 e8 a5 b0 fc ff 48 8b 44 24 38 48 89 04 24 e8 d7 77 fb ff 48 8b 6c 24 40 48 83 c4 48 c3 48 89 d1 eb 90 e8 <73> 20 00 00 e9 7e fe ff ff cc cc cc cc cc cc cc cc cc cc cc cc cc RSP: 002b:00007f21ada67c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000457e39 RDX: 0000000000002000 RSI: 00000000200000c0 RDI: ffffffffffffff9c RBP: 000000000073c040 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f21ada686d4 R13: 00000000004c436f R14: 00000000004d78e0 R15: 00000000ffffffff Showing all locks held in the system: 1 lock held by khungtaskd/1039: #0: 000000004abaf471 (rcu_read_lock){....}, at: debug_show_all_locks+0x5f/0x27e kernel/locking/lockdep.c:4389 1 lock held by rsyslogd/7579: #0: 0000000029940e8b (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xee/0x110 fs/file.c:795 2 locks held by getty/7668: #0: 000000007acca1c2 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 0000000028dfae94 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154 2 locks held by getty/7669: #0: 000000000df83932 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000b4f2427b (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154 2 locks held by getty/7670: #0: 00000000c5e80b85 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000478157f9 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154 2 locks held by getty/7671: #0: 000000008c20b91b (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 0000000034cee1c9 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154 2 locks held by getty/7672: #0: 00000000794b7119 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 000000001519b658 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154 2 locks held by getty/7673: #0: 0000000064ddf848 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000cccd1450 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154 2 locks held by getty/7674: #0: 000000004a1c98eb (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000baea2931 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 drivers/tty/n_tty.c:2154 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1039 Comm: khungtaskd Not tainted 5.0.0-rc5 #60 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+0x172/0x1f0 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+0x9df/0xee0 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: NMI backtrace for cpu 0 CPU: 0 PID: 2534 Comm: kworker/u4:4 Not tainted 5.0.0-rc5 #60 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: bat_events batadv_nc_worker RIP: 0010:lock_release+0x4f7/0xa00 kernel/locking/lockdep.c:3864 Code: fc ff df 48 c7 04 03 00 00 00 00 48 8b 45 d0 65 48 33 04 25 28 00 00 00 0f 85 f3 03 00 00 48 81 c4 90 00 00 00 5b 41 5c 41 5d <41> 5e 41 5f 5d c3 65 8b 05 1c 37 aa 7e 83 f8 3f 0f 87 6b 02 00 00 RSP: 0018:ffff8880a1717cc0 EFLAGS: 00000282 RAX: 0000000000000000 RBX: ffff8880a782f8c0 RCX: 1ffff110142e056e RDX: dffffc0000000000 RSI: 1ffff110142e057a RDI: 0000000000000282 RBP: ffff8880a1717cd0 R08: ffff8880a1702300 R09: 0000000000000003 R10: ffffed1015d05bcf R11: ffff8880ae82de7b R12: 0000000000000001 R13: 0000000000000077 R14: ffffffff8a556aa0 R15: ffff8880a1717ca8 FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffff600400 CR3: 0000000098d8b000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000106000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rcu_lock_release include/linux/rcupdate.h:228 [inline] rcu_read_unlock include/linux/rcupdate.h:661 [inline] batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:423 [inline] batadv_nc_worker+0x225/0x760 net/batman-adv/network-coding.c:730 process_one_work+0x98e/0x1790 kernel/workqueue.c:2173 worker_thread+0x98/0xe40 kernel/workqueue.c:2319 kthread+0x357/0x430 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352