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-executor1:32461 blocked for more than 140 seconds. Not tainted 5.0.0-rc4+ #50 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor1 D27576 32461 8152 0x00000004 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_read_failed_common kernel/locking/rwsem-xadd.c:287 [inline] rwsem_down_read_failed+0x360/0x6d0 kernel/locking/rwsem-xadd.c:304 call_rwsem_down_read_failed+0x18/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] down_read+0x9b/0x120 kernel/locking/rwsem.c:26 __get_super.part.0+0x203/0x2e0 fs/super.c:699 __get_super include/linux/spinlock.h:329 [inline] __get_super_thawed+0x153/0x310 fs/super.c:736 get_super_thawed+0x18/0x20 fs/super.c:760 quotactl_block fs/quota/quota.c:818 [inline] kernel_quotactl+0x200/0x1810 fs/quota/quota.c:872 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_1 __do_sys_quotactl fs/quota/quota.c:893 [inline] __se_sys_quotactl fs/quota/quota.c:890 [inline] __x64_sys_quotactl+0x97/0xf0 fs/quota/quota.c:890 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458089 Code: Bad RIP value. RSP: 002b:00007f95439b3c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000458089 RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000000 RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f95439b46d4 R13: 00000000004c4c59 R14: 00000000004d84e8 R15: 00000000ffffffff INFO: task syz-executor1:32462 blocked for more than 140 seconds. Not tainted 5.0.0-rc4+ #50 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor1 D26776 32462 8152 0x00000004 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 grab_super+0xbf/0x410 fs/super.c:384 sget_userns+0x442/0xf50 fs/super.c:512 sget+0x10c/0x150 fs/super.c:571 mount_bdev+0xff/0x3c0 fs/super.c:1132 udf_mount+0x35/0x40 fs/udf/super.c:131 mount_fs+0x123/0x43a fs/super.c:1258 vfs_kern_mount.part.0+0xdb/0x570 fs/namespace.c:959 vfs_kern_mount fs/namespace.c:949 [inline] do_new_mount fs/namespace.c:2513 [inline] do_mount+0x58e/0x3330 fs/namespace.c:2847 ksys_mount+0xdb/0x150 fs/namespace.c:3063 __do_sys_mount fs/namespace.c:3077 [inline] __se_sys_mount fs/namespace.c:3074 [inline] __x64_sys_mount+0xbe/0x150 fs/namespace.c:3074 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458089 Code: Bad RIP value. RSP: 002b:00007f9543992c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000458089 RDX: 0000000020000100 RSI: 0000000020000080 RDI: 0000000020000040 RBP: 000000000073c040 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f95439936d4 R13: 00000000004c3e0b R14: 00000000004d6eb0 R15: 00000000ffffffff INFO: task syz-executor1:32492 blocked for more than 140 seconds. Not tainted 5.0.0-rc4+ #50 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor1 D27880 32492 8152 0x00000004 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_read_failed_common kernel/locking/rwsem-xadd.c:287 [inline] rwsem_down_read_failed+0x360/0x6d0 kernel/locking/rwsem-xadd.c:304 call_rwsem_down_read_failed+0x18/0x30 arch/x86/lib/rwsem.S:94 __down_read arch/x86/include/asm/rwsem.h:83 [inline] down_read+0x9b/0x120 kernel/locking/rwsem.c:26 __get_super.part.0+0x203/0x2e0 fs/super.c:699 __get_super include/linux/spinlock.h:329 [inline] __get_super_thawed+0x153/0x310 fs/super.c:736 get_super_thawed+0x18/0x20 fs/super.c:760 quotactl_block fs/quota/quota.c:818 [inline] kernel_quotactl+0x200/0x1810 fs/quota/quota.c:872 __do_sys_quotactl fs/quota/quota.c:893 [inline] __se_sys_quotactl fs/quota/quota.c:890 [inline] __x64_sys_quotactl+0x97/0xf0 fs/quota/quota.c:890 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458089 Code: Bad RIP value. RSP: 002b:00007f9543971c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000458089 RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000000 RBP: 000000000073c0e0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f95439726d4 R13: 00000000004c4c59 R14: 00000000004d84e8 R15: 00000000ffffffff Showing all locks held in the system: 1 lock held by khungtaskd/1040: #0: 00000000446f942c (rcu_read_lock){....}, at: debug_show_all_locks+0xc6/0x41d kernel/locking/lockdep.c:4389 2 locks held by rs:main Q:Reg/8022: #0: 00000000f852be6a (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1149 [inline] #0: 00000000f852be6a (&rq->lock){-.-.}, at: __schedule+0x21e/0x1e60 kernel/sched/core.c:3423 #1: 00000000755b898b (sb_writers#3){.+.+}, at: file_start_write include/linux/fs.h:2815 [inline] #1: 00000000755b898b (sb_writers#3){.+.+}, at: vfs_write+0x429/0x580 fs/read_write.c:548 1 lock held by rsyslogd/8024: #0: 00000000d3c1d30f (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x1b3/0x1f0 fs/file.c:795 2 locks held by getty/8114: #0: 000000009a96ec22 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 000000002dfc7c50 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/8115: #0: 00000000567b059a (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000d28166ea (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/8116: #0: 00000000ea338db4 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000dcd78128 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/8117: #0: 00000000bb018731 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000ad56f879 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/8118: #0: 00000000d33dea34 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 000000002fdbc1f5 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/8119: #0: 00000000417978d6 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000d366768f (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 2 locks held by getty/8120: #0: 00000000904777e9 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341 #1: 00000000352de81a (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154 1 lock held by syz-executor3/10520: #0: 00000000665b3afa (&sig->cred_guard_mutex){+.+.}, at: prepare_bprm_creds fs/exec.c:1407 [inline] #0: 00000000665b3afa (&sig->cred_guard_mutex){+.+.}, at: __do_execve_file.isra.0+0x45d/0x2700 fs/exec.c:1750 1 lock held by syz-executor1/32453: 1 lock held by syz-executor1/32461: #0: 00000000ec715fb0 (&type->s_umount_key#87){++++}, at: __get_super.part.0+0x203/0x2e0 fs/super.c:699 2 locks held by syz-executor1/32462: #0: 0000000070703f13 (&bdev->bd_fsfreeze_mutex){+.+.}, at: mount_bdev+0x93/0x3c0 fs/super.c:1126 #1: 00000000ec715fb0 (&type->s_umount_key#87){++++}, at: grab_super+0xbf/0x410 fs/super.c:384 1 lock held by syz-executor1/32492: #0: 00000000ec715fb0 (&type->s_umount_key#87){++++}, at: __get_super.part.0+0x203/0x2e0 fs/super.c:699 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1040 Comm: khungtaskd Not tainted 5.0.0-rc4+ #50 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 0 to CPUs 1: INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.128 msecs NMI backtrace for cpu 1 CPU: 1 PID: 32453 Comm: syz-executor1 Not tainted 5.0.0-rc4+ #50 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:rcu_dynticks_curr_cpu_in_eqs+0x1/0x170 kernel/rcu/tree.c:302 Code: bf de ff 66 0f 1f 44 00 00 55 48 89 e5 e8 37 a7 ff ff 65 48 8b 3c 25 40 ee 01 00 e8 39 d7 ff ff 5d c3 0f 1f 80 00 00 00 00 55 <48> 89 e5 41 56 49 be 00 00 00 00 00 fc ff df 41 55 4c 8d 6d e0 41 RSP: 0018:ffff888055d56f58 EFLAGS: 00000282 RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc90008004000 RDX: 0000000000040000 RSI: ffffffff81a0a44c RDI: 0000000000000001 RBP: ffff888055d56f68 R08: ffff888092e065c0 R09: ffff888092e06e88 R10: ffff888092e06e68 R11: 0000000000000001 R12: 0000000000000040 R13: dffffc0000000000 R14: ffffea000202fe80 R15: ffff888055d57198 FS: 00007f95439d5700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000045805f CR3: 000000009537d000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rcu_read_lock include/linux/rcupdate.h:608 [inline] find_get_entry+0xc31/0x10a0 mm/filemap.c:1473 pagecache_get_page+0xe6/0x1020 mm/filemap.c:1579 find_or_create_page include/linux/pagemap.h:322 [inline] grow_dev_page fs/buffer.c:947 [inline] grow_buffers fs/buffer.c:1016 [inline] __getblk_slow fs/buffer.c:1043 [inline] __getblk_gfp+0x38a/0xd20 fs/buffer.c:1320 __bread_gfp+0x2f/0x300 fs/buffer.c:1354 sb_bread include/linux/buffer_head.h:307 [inline] udf_tread+0xf1/0x140 fs/udf/misc.c:44 udf_read_tagged+0x50/0x530 fs/udf/misc.c:210 udf_check_anchor_block+0x1d5/0x640 fs/udf/super.c:1775 udf_scan_anchors+0x5b3/0x850 fs/udf/super.c:1854 udf_find_anchor fs/udf/super.c:1872 [inline] udf_load_vrs+0x69b/0xdd0 fs/udf/super.c:1937 udf_fill_super+0xbac/0x2383 fs/udf/super.c:2132 mount_bdev+0x307/0x3c0 fs/super.c:1159 udf_mount+0x35/0x40 fs/udf/super.c:131 mount_fs+0x123/0x43a fs/super.c:1258 vfs_kern_mount.part.0+0xdb/0x570 fs/namespace.c:959 vfs_kern_mount fs/namespace.c:949 [inline] do_new_mount fs/namespace.c:2513 [inline] do_mount+0x58e/0x3330 fs/namespace.c:2847 ksys_mount+0xdb/0x150 fs/namespace.c:3063 __do_sys_mount fs/namespace.c:3077 [inline] __se_sys_mount fs/namespace.c:3074 [inline] __x64_sys_mount+0xbe/0x150 fs/namespace.c:3074 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458089 Code: 6d 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 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f95439d4c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000458089 RDX: 0000000020000100 RSI: 0000000020000080 RDI: 0000000020000040 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f95439d56d4 R13: 00000000004c3e0b R14: 00000000004d6eb0 R15: 00000000ffffffff