Starting Load/Save RF Kill Switch Status... [ 52.281744][ T6830] BUG: using smp_processor_id() in preemptible [00000000] code: systemd-rfkill/6830 [ 52.291326][ T6830] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 52.297658][ T6830] CPU: 1 PID: 6830 Comm: systemd-rfkill Not tainted 5.7.0-syzkaller #0 [ 52.305888][ T6830] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.315918][ T6830] Call Trace: [ 52.319191][ T6830] dump_stack+0x18f/0x20d [ 52.323596][ T6830] check_preemption_disabled+0x20d/0x220 [ 52.329214][ T6830] ext4_mb_new_blocks+0xa4d/0x3b70 [ 52.334329][ T6830] ? ext4_ext_search_right+0x2ca/0xb20 [ 52.339785][ T6830] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 52.345485][ T6830] ext4_ext_map_blocks+0x201b/0x33e0 [ 52.350752][ T6830] ? ext4_ext_release+0x10/0x10 [ 52.355595][ T6830] ? down_write_killable+0x170/0x170 [ 52.360855][ T6830] ? ext4_es_lookup_extent+0x41d/0xd10 [ 52.366295][ T6830] ext4_map_blocks+0x4cb/0x1640 [ 52.371356][ T6830] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 52.376536][ T6830] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 52.382077][ T6830] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 52.388060][ T6830] ? prandom_u32_state+0xe/0x170 [ 52.392983][ T6830] ? __brelse+0x84/0xa0 [ 52.397118][ T6830] ? __ext4_new_inode+0x144/0x55e0 [ 52.402212][ T6830] ext4_getblk+0xad/0x520 [ 52.406524][ T6830] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 52.412240][ T6830] ? ext4_free_inode+0x1700/0x1700 [ 52.417330][ T6830] ext4_bread+0x7c/0x380 [ 52.421550][ T6830] ? ext4_getblk+0x520/0x520 [ 52.426129][ T6830] ? dquot_get_next_dqblk+0x180/0x180 [ 52.431481][ T6830] ext4_append+0x153/0x360 [ 52.435883][ T6830] ext4_mkdir+0x5e0/0xdf0 [ 52.440195][ T6830] ? ext4_rmdir+0xde0/0xde0 [ 52.444677][ T6830] ? security_inode_permission+0xc4/0xf0 [ 52.450287][ T6830] vfs_mkdir+0x419/0x690 [ 52.454509][ T6830] do_mkdirat+0x21e/0x280 [ 52.458824][ T6830] ? __ia32_sys_mknod+0xb0/0xb0 [ 52.463652][ T6830] ? do_syscall_64+0x1c/0xe0 [ 52.468218][ T6830] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 52.474175][ T6830] do_syscall_64+0x60/0xe0 [ 52.478584][ T6830] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 52.484451][ T6830] RIP: 0033:0x7f32e41b1687 [ 52.488871][ T6830] Code: Bad RIP value. [ 52.492910][ T6830] RSP: 002b:00007ffc67ab9c58 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 52.501294][ T6830] RAX: ffffffffffffffda RBX: 0000564841742985 RCX: 00007f32e41b1687 [ 52.509241][ T6830] RDX: 00007ffc67ab9b20 RSI: 00000000000001ed RDI: 0000564841742985 [ 52.517200][ T6830] RBP: 00007f32e41b1680 R08: 0000000000000100 R09: 0000000000000000 [ 52.525157][ T6830] R10: 0000564841742980 R11: 0000000000000246 R12: 00000000000001ed [ 52.533102][ T6830] R13: 00007ffc67ab9de0 R14: 0000000000000000 R15: 0000000000000000 [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 55.491423][ T7] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u4:0/7 [ 55.500375][ T7] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 55.506401][ T7] CPU: 1 PID: 7 Comm: kworker/u4:0 Not tainted 5.7.0-syzkaller #0 [ 55.514200][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.524244][ T7] Workqueue: writeback wb_workfn (flush-8:0) [ 55.530198][ T7] Call Trace: [ 55.533479][ T7] dump_stack+0x18f/0x20d [ 55.537791][ T7] check_preemption_disabled+0x20d/0x220 [ 55.543413][ T7] ext4_mb_new_blocks+0xa4d/0x3b70 [ 55.548503][ T7] ? ext4_find_extent+0x81a/0xad0 [ 55.553534][ T7] ? ext4_ext_search_right+0x2ca/0xb20 [ 55.558967][ T7] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 55.564678][ T7] ext4_ext_map_blocks+0x201b/0x33e0 [ 55.569942][ T7] ? ext4_ext_release+0x10/0x10 [ 55.574789][ T7] ? down_write_killable+0x170/0x170 [ 55.580052][ T7] ? ext4_es_lookup_extent+0x41d/0xd10 [ 55.585489][ T7] ext4_map_blocks+0x4cb/0x1640 [ 55.590319][ T7] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 55.595672][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 55.601193][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 55.607159][ T7] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 55.612597][ T7] ext4_writepages+0x1a7b/0x33c0 [ 55.617523][ T7] ? __ext4_mark_inode_dirty+0x940/0x940 [ 55.623149][ T7] ? __lock_acquire+0x2224/0x48b0 [ 55.628154][ T7] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 55.634126][ T7] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 55.640082][ T7] ? __ext4_mark_inode_dirty+0x940/0x940 [ 55.645692][ T7] ? do_writepages+0xfa/0x2a0 [ 55.650355][ T7] do_writepages+0xfa/0x2a0 [ 55.654849][ T7] ? page_writeback_cpu_online+0x10/0x10 [ 55.660460][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 55.665980][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 55.673943][ T7] ? lock_downgrade+0x840/0x840 [ 55.678774][ T7] __writeback_single_inode+0x12a/0x13d0 [ 55.684382][ T7] ? _raw_spin_unlock+0x24/0x40 [ 55.689224][ T7] ? wbc_attach_and_unlock_inode+0x60a/0x9c0 [ 55.695193][ T7] writeback_sb_inodes+0x515/0xdc0 [ 55.700287][ T7] ? __writeback_single_inode+0x13d0/0x13d0 [ 55.706167][ T7] __writeback_inodes_wb+0xc3/0x250 [ 55.711349][ T7] wb_writeback+0x8db/0xd50 [ 55.715830][ T7] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 55.722133][ T7] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 55.728002][ T7] ? cpumask_next+0x3c/0x40 [ 55.732482][ T7] ? get_nr_dirty_inodes+0xd6/0x130 [ 55.737660][ T7] wb_workfn+0xab3/0x1090 [ 55.741968][ T7] ? inode_wait_for_writeback+0x30/0x30 [ 55.747491][ T7] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 55.753195][ T7] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 55.759151][ T7] process_one_work+0x965/0x1690 [ 55.764066][ T7] ? lock_release+0x800/0x800 [ 55.768731][ T7] ? pwq_dec_nr_in_flight+0x310/0x310 [ 55.774266][ T7] ? rwlock_bug.part.0+0x90/0x90 [ 55.779181][ T7] worker_thread+0x96/0xe10 [ 55.783699][ T7] ? process_one_work+0x1690/0x1690 [ 55.788885][ T7] kthread+0x3b5/0x4a0 [ 55.792938][ T7] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 55.798658][ T7] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 55.804373][ T7] ret_from_fork+0x1f/0x30 Warning: Permanently added '10.128.10.35' (ECDSA) to the list of known hosts. 2020/06/13 23:52:23 fuzzer started 2020/06/13 23:52:23 connecting to host at 10.128.0.26:34639 2020/06/13 23:52:23 checking machine... 2020/06/13 23:52:23 checking revisions... 2020/06/13 23:52:23 testing simple program... [ 57.398569][ T6898] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/6898 [ 57.407642][ T6898] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 57.413894][ T6898] CPU: 0 PID: 6898 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 57.421811][ T6898] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.431864][ T6898] Call Trace: [ 57.435139][ T6898] dump_stack+0x18f/0x20d [ 57.439488][ T6898] check_preemption_disabled+0x20d/0x220 [ 57.445107][ T6898] ext4_mb_new_blocks+0xa4d/0x3b70 [ 57.450204][ T6898] ? ext4_ext_search_right+0x2ca/0xb20 [ 57.455641][ T6898] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 57.461343][ T6898] ext4_ext_map_blocks+0x201b/0x33e0 [ 57.466612][ T6898] ? ext4_ext_release+0x10/0x10 [ 57.471468][ T6898] ? down_write_killable+0x170/0x170 [ 57.476727][ T6898] ? ext4_es_lookup_extent+0x41d/0xd10 [ 57.482193][ T6898] ext4_map_blocks+0x4cb/0x1640 [ 57.487023][ T6898] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 57.492214][ T6898] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.497734][ T6898] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.503688][ T6898] ? prandom_u32_state+0xe/0x170 [ 57.508599][ T6898] ? __brelse+0x84/0xa0 [ 57.512906][ T6898] ? __ext4_new_inode+0x144/0x55e0 [ 57.518007][ T6898] ext4_getblk+0xad/0x520 [ 57.522315][ T6898] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 57.528013][ T6898] ? ext4_free_inode+0x1700/0x1700 [ 57.533104][ T6898] ext4_bread+0x7c/0x380 [ 57.537336][ T6898] ? ext4_getblk+0x520/0x520 [ 57.541908][ T6898] ? dquot_get_next_dqblk+0x180/0x180 [ 57.547276][ T6898] ext4_append+0x153/0x360 [ 57.551687][ T6898] ext4_mkdir+0x5e0/0xdf0 [ 57.556009][ T6898] ? ext4_rmdir+0xde0/0xde0 [ 57.560496][ T6898] ? security_inode_permission+0xc4/0xf0 [ 57.566135][ T6898] vfs_mkdir+0x419/0x690 [ 57.570355][ T6898] do_mkdirat+0x21e/0x280 [ 57.574677][ T6898] ? __ia32_sys_mknod+0xb0/0xb0 [ 57.579529][ T6898] ? do_syscall_64+0x1c/0xe0 [ 57.584120][ T6898] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 57.590118][ T6898] do_syscall_64+0x60/0xe0 [ 57.594542][ T6898] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 57.600430][ T6898] RIP: 0033:0x4b02a0 [ 57.604317][ T6898] Code: Bad RIP value. [ 57.608374][ T6898] RSP: 002b:000000c0000c54b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 57.616790][ T6898] RAX: ffffffffffffffda RBX: 000000c00002c000 RCX: 00000000004b02a0 [ 57.624756][ T6898] RDX: 00000000000001c0 RSI: 000000c0000d6bc0 RDI: ffffffffffffff9c [ 57.632725][ T6898] RBP: 000000c0000c5510 R08: 0000000000000000 R09: 0000000000000000 [ 57.640690][ T6898] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 57.648649][ T6898] R13: 000000000000005f R14: 000000000000005e R15: 0000000000000100 [ 57.666874][ T6913] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6913 [ 57.676302][ T6913] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 57.682239][ T6913] CPU: 0 PID: 6913 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 57.690471][ T6913] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.700512][ T6913] Call Trace: [ 57.703818][ T6913] dump_stack+0x18f/0x20d [ 57.708128][ T6913] check_preemption_disabled+0x20d/0x220 [ 57.713753][ T6913] ext4_mb_new_blocks+0xa4d/0x3b70 [ 57.718857][ T6913] ? ext4_ext_search_right+0x2ca/0xb20 [ 57.724291][ T6913] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 57.729995][ T6913] ext4_ext_map_blocks+0x201b/0x33e0 [ 57.735277][ T6913] ? ext4_ext_release+0x10/0x10 [ 57.740118][ T6913] ? down_write_killable+0x170/0x170 [ 57.745429][ T6913] ? ext4_es_lookup_extent+0x41d/0xd10 [ 57.750870][ T6913] ext4_map_blocks+0x4cb/0x1640 [ 57.755723][ T6913] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 57.760898][ T6913] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 57.766417][ T6913] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 57.772372][ T6913] ? prandom_u32_state+0xe/0x170 [ 57.777301][ T6913] ? __brelse+0x84/0xa0 [ 57.781433][ T6913] ? __ext4_new_inode+0x144/0x55e0 [ 57.786537][ T6913] ext4_getblk+0xad/0x520 [ 57.790893][ T6913] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 57.796591][ T6913] ? ext4_free_inode+0x1700/0x1700 [ 57.801683][ T6913] ext4_bread+0x7c/0x380 [ 57.805905][ T6913] ? ext4_getblk+0x520/0x520 [ 57.810483][ T6913] ? dquot_get_next_dqblk+0x180/0x180 [ 57.815852][ T6913] ext4_append+0x153/0x360 [ 57.820264][ T6913] ext4_mkdir+0x5e0/0xdf0 [ 57.824575][ T6913] ? ext4_rmdir+0xde0/0xde0 [ 57.829056][ T6913] ? security_inode_permission+0xc4/0xf0 [ 57.834691][ T6913] vfs_mkdir+0x419/0x690 [ 57.838922][ T6913] do_mkdirat+0x21e/0x280 [ 57.843232][ T6913] ? __ia32_sys_mknod+0xb0/0xb0 [ 57.848057][ T6913] ? do_syscall_64+0x1c/0xe0 [ 57.852628][ T6913] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 57.858595][ T6913] do_syscall_64+0x60/0xe0 [ 57.862990][ T6913] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 57.868857][ T6913] RIP: 0033:0x45bee7 [ 57.872718][ T6913] Code: Bad RIP value. [ 57.876769][ T6913] RSP: 002b:00007ffdfa130008 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 57.885151][ T6913] RAX: ffffffffffffffda RBX: 000000000003a2f8 RCX: 000000000045bee7 [ 57.893122][ T6913] RDX: 0000000000000003 RSI: 00000000000001c0 RDI: 00007ffdfa1301e0 [ 57.901074][ T6913] RBP: 0000000000000001 R08: 000000000000f8c0 R09: 00000000000033c0 [ 57.909031][ T6913] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 57.916995][ T6913] R13: 00007ffdfa1301e0 R14: 8421084210842109 R15: 00007ffdfa1301ec [ 57.997653][ T6914] IPVS: ftp: loaded support on port[0] = 21 [ 58.032162][ T6914] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6914 [ 58.041627][ T6914] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.047525][ T6914] CPU: 1 PID: 6914 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 58.055751][ T6914] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.065793][ T6914] Call Trace: [ 58.069082][ T6914] dump_stack+0x18f/0x20d [ 58.073409][ T6914] check_preemption_disabled+0x20d/0x220 [ 58.079019][ T6914] ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.084131][ T6914] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.089566][ T6914] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.095266][ T6914] ext4_ext_map_blocks+0x201b/0x33e0 [ 58.100532][ T6914] ? ext4_ext_release+0x10/0x10 [ 58.105392][ T6914] ? down_write_killable+0x170/0x170 [ 58.110665][ T6914] ? ext4_es_lookup_extent+0x41d/0xd10 [ 58.116112][ T6914] ext4_map_blocks+0x4cb/0x1640 [ 58.120942][ T6914] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.126113][ T6914] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.131648][ T6914] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.137615][ T6914] ? prandom_u32_state+0xe/0x170 [ 58.142529][ T6914] ? __brelse+0x84/0xa0 [ 58.146658][ T6914] ? __ext4_new_inode+0x144/0x55e0 [ 58.151745][ T6914] ext4_getblk+0xad/0x520 [ 58.156050][ T6914] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.161769][ T6914] ? ext4_free_inode+0x1700/0x1700 [ 58.166854][ T6914] ext4_bread+0x7c/0x380 [ 58.171075][ T6914] ? ext4_getblk+0x520/0x520 [ 58.175639][ T6914] ? dquot_get_next_dqblk+0x180/0x180 [ 58.180988][ T6914] ext4_append+0x153/0x360 [ 58.185402][ T6914] ext4_mkdir+0x5e0/0xdf0 [ 58.189739][ T6914] ? ext4_rmdir+0xde0/0xde0 [ 58.194247][ T6914] ? security_inode_permission+0xc4/0xf0 [ 58.199873][ T6914] vfs_mkdir+0x419/0x690 [ 58.204097][ T6914] do_mkdirat+0x21e/0x280 [ 58.208418][ T6914] ? __ia32_sys_mknod+0xb0/0xb0 [ 58.213276][ T6914] ? do_syscall_64+0x1c/0xe0 [ 58.217845][ T6914] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.223808][ T6914] do_syscall_64+0x60/0xe0 [ 58.228240][ T6914] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 58.234119][ T6914] RIP: 0033:0x45bee7 [ 58.237985][ T6914] Code: Bad RIP value. [ 58.242041][ T6914] RSP: 002b:00007ffdfa12fef8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 58.250424][ T6914] RAX: ffffffffffffffda RBX: 000000000078c988 RCX: 000000000045bee7 [ 58.258420][ T6914] RDX: 00007ffdfa12ff43 RSI: 00000000000001ff RDI: 00007ffdfa12ff40 [ 58.266370][ T6914] RBP: 00000000000000f8 R08: 0000000000000000 R09: 0000000000000003 [ 58.274342][ T6914] R10: 0000000000000064 R11: 0000000000000202 R12: 00000000004185d0 [ 58.282291][ T6914] R13: 00007ffdfa12ff30 R14: 0000000000000000 R15: 00007ffdfa12ff40 [ 58.333241][ T6914] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/6914 [ 58.342732][ T6914] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.348649][ T6914] CPU: 0 PID: 6914 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 58.356879][ T6914] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.366936][ T6914] Call Trace: [ 58.370236][ T6914] dump_stack+0x18f/0x20d [ 58.374573][ T6914] check_preemption_disabled+0x20d/0x220 [ 58.381160][ T6914] ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.386286][ T6914] ? ext4_ext_search_right+0x2ca/0xb20 [ 58.391752][ T6914] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 58.397485][ T6914] ext4_ext_map_blocks+0x201b/0x33e0 [ 58.402762][ T6914] ? ext4_ext_release+0x10/0x10 [ 58.407599][ T6914] ? down_write_killable+0x170/0x170 [ 58.412997][ T6914] ? ext4_es_lookup_extent+0x41d/0xd10 [ 58.418477][ T6914] ext4_map_blocks+0x4cb/0x1640 [ 58.423310][ T6914] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 58.428482][ T6914] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 58.434020][ T6914] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 58.439976][ T6914] ? prandom_u32_state+0xe/0x170 [ 58.444896][ T6914] ? __brelse+0x84/0xa0 [ 58.449040][ T6914] ? __ext4_new_inode+0x144/0x55e0 [ 58.454127][ T6914] ext4_getblk+0xad/0x520 [ 58.458431][ T6914] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 58.464131][ T6914] ? ext4_free_inode+0x1700/0x1700 [ 58.469231][ T6914] ext4_bread+0x7c/0x380 [ 58.473448][ T6914] ? ext4_getblk+0x520/0x520 [ 58.478011][ T6914] ? dquot_get_next_dqblk+0x180/0x180 [ 58.483375][ T6914] ext4_append+0x153/0x360 [ 58.487777][ T6914] ext4_mkdir+0x5e0/0xdf0 [ 58.492085][ T6914] ? ext4_rmdir+0xde0/0xde0 [ 58.496563][ T6914] ? security_inode_permission+0xc4/0xf0 [ 58.502177][ T6914] vfs_mkdir+0x419/0x690 [ 58.506409][ T6914] do_mkdirat+0x21e/0x280 [ 58.510718][ T6914] ? __ia32_sys_mknod+0xb0/0xb0 [ 58.515546][ T6914] ? do_syscall_64+0x1c/0xe0 [ 58.520109][ T6914] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 58.526064][ T6914] do_syscall_64+0x60/0xe0 [ 58.530465][ T6914] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 58.536335][ T6914] RIP: 0033:0x45bee7 [ 58.540198][ T6914] Code: Bad RIP value. [ 58.544251][ T6914] RSP: 002b:00007ffdfa12fef8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 58.552634][ T6914] RAX: ffffffffffffffda RBX: 000000000000e3d7 RCX: 000000000045bee7 [ 58.560586][ T6914] RDX: 00007ffdfa12ff43 RSI: 00000000000001ff RDI: 00007ffdfa12ff40 [ 58.568543][ T6914] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000003 [ 58.576492][ T6914] R10: 0000000000000064 R11: 0000000000000202 R12: 0000000000000003 2020/06/13 23:52:24 building call list... [ 58.584436][ T6914] R13: 00007ffdfa12ff30 R14: 000000000000e3c9 R15: 00007ffdfa12ff40 [ 58.830400][ T21] tipc: TX() has been purged, node left! [ 58.940873][ T1153] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1153 [ 58.950053][ T1153] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.956028][ T1153] CPU: 0 PID: 1153 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 58.963912][ T1153] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.973955][ T1153] Call Trace: [ 58.977316][ T1153] dump_stack+0x18f/0x20d [ 58.981645][ T1153] check_preemption_disabled+0x20d/0x220 [ 58.987271][ T1153] ext4_mb_new_blocks+0xa4d/0x3b70 [ 58.992376][ T1153] ? ext4_find_extent+0x81a/0xad0 [ 58.997404][ T1153] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.002854][ T1153] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 59.008574][ T1153] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.013864][ T1153] ? ext4_ext_release+0x10/0x10 [ 59.018724][ T1153] ? down_write_killable+0x170/0x170 [ 59.024002][ T1153] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.029633][ T1153] ext4_map_blocks+0x4cb/0x1640 [ 59.034485][ T1153] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.039681][ T1153] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.045245][ T1153] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.051216][ T1153] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 59.056682][ T1153] ext4_writepages+0x1a7b/0x33c0 [ 59.061627][ T1153] ? lock_release+0x7c0/0x800 [ 59.066316][ T1153] ? __ext4_mark_inode_dirty+0x940/0x940 [ 59.071978][ T1153] ? __ext4_mark_inode_dirty+0x940/0x940 [ 59.077606][ T1153] ? do_writepages+0xfa/0x2a0 [ 59.082280][ T1153] do_writepages+0xfa/0x2a0 [ 59.086785][ T1153] ? page_writeback_cpu_online+0x10/0x10 [ 59.092414][ T1153] ? do_raw_spin_lock+0x120/0x2d0 [ 59.097430][ T1153] ? do_raw_spin_unlock+0x171/0x260 [ 59.102631][ T1153] ? _raw_spin_unlock+0x24/0x40 [ 59.107478][ T1153] __filemap_fdatawrite_range+0x2aa/0x390 [ 59.113200][ T1153] ? collapse_file+0x35a2/0x4330 [ 59.118221][ T1153] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 59.124292][ T1153] ? _raw_spin_unlock_irq+0x1f/0x80 [ 59.129482][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.135460][ T1153] collapse_file+0x35ac/0x4330 [ 59.140234][ T1153] ? collapse_huge_page+0x4350/0x4350 [ 59.145600][ T1153] ? khugepaged+0x2506/0x3fc0 [ 59.150284][ T1153] ? xas_find+0x31a/0x880 [ 59.154619][ T1153] ? check_preemption_disabled+0x38/0x220 [ 59.160339][ T1153] khugepaged+0x3041/0x3fc0 [ 59.164866][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.170758][ T1153] ? lock_downgrade+0x840/0x840 [ 59.175604][ T1153] ? finish_wait+0x260/0x260 [ 59.180288][ T1153] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 59.186179][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.192164][ T1153] ? __kthread_parkme+0x13f/0x1e0 [ 59.197274][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.203105][ T1153] kthread+0x3b5/0x4a0 [ 59.207188][ T1153] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.213008][ T1153] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.218740][ T1153] ret_from_fork+0x1f/0x30 [ 59.325677][ T1153] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1153 [ 59.334804][ T1153] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.340944][ T1153] CPU: 1 PID: 1153 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 59.348995][ T1153] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.359219][ T1153] Call Trace: [ 59.362544][ T1153] dump_stack+0x18f/0x20d [ 59.366873][ T1153] check_preemption_disabled+0x20d/0x220 [ 59.372549][ T1153] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.377965][ T1153] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.383424][ T1153] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 59.389575][ T1153] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.394864][ T1153] ? ext4_ext_release+0x10/0x10 [ 59.399727][ T1153] ? down_write_killable+0x170/0x170 [ 59.405009][ T1153] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.410469][ T1153] ext4_map_blocks+0x4cb/0x1640 [ 59.415320][ T1153] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.420520][ T1153] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.426061][ T1153] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.432210][ T1153] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 59.437667][ T1153] ext4_writepages+0x1a7b/0x33c0 [ 59.442630][ T1153] ? lock_release+0x7c0/0x800 [ 59.447318][ T1153] ? __ext4_mark_inode_dirty+0x940/0x940 [ 59.453569][ T1153] ? __ext4_mark_inode_dirty+0x940/0x940 [ 59.459373][ T1153] ? do_writepages+0xfa/0x2a0 [ 59.464048][ T1153] do_writepages+0xfa/0x2a0 [ 59.468552][ T1153] ? page_writeback_cpu_online+0x10/0x10 [ 59.474184][ T1153] ? do_raw_spin_lock+0x120/0x2d0 [ 59.479201][ T1153] ? do_raw_spin_unlock+0x171/0x260 [ 59.484393][ T1153] ? _raw_spin_unlock+0x24/0x40 [ 59.489245][ T1153] __filemap_fdatawrite_range+0x2aa/0x390 [ 59.495498][ T1153] ? collapse_file+0x35a2/0x4330 [ 59.500428][ T1153] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 59.506498][ T1153] ? _raw_spin_unlock_irq+0x1f/0x80 [ 59.511698][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.517676][ T1153] collapse_file+0x35ac/0x4330 [ 59.522452][ T1153] ? collapse_huge_page+0x4350/0x4350 [ 59.527817][ T1153] ? khugepaged+0x2506/0x3fc0 [ 59.532500][ T1153] ? xas_find+0x31a/0x880 [ 59.536825][ T1153] ? check_preemption_disabled+0x38/0x220 [ 59.542568][ T1153] khugepaged+0x3041/0x3fc0 [ 59.547098][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.552731][ T1153] ? lock_downgrade+0x840/0x840 [ 59.557576][ T1153] ? finish_wait+0x260/0x260 [ 59.562431][ T1153] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 59.568232][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.574213][ T1153] ? __kthread_parkme+0x13f/0x1e0 [ 59.579838][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.585466][ T1153] kthread+0x3b5/0x4a0 [ 59.589536][ T1153] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.595245][ T1153] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 59.600962][ T1153] ret_from_fork+0x1f/0x30 [ 59.770129][ T1153] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1153 [ 59.779190][ T1153] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.785305][ T1153] CPU: 0 PID: 1153 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 59.793184][ T1153] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.803621][ T1153] Call Trace: [ 59.806909][ T1153] dump_stack+0x18f/0x20d [ 59.811241][ T1153] check_preemption_disabled+0x20d/0x220 [ 59.816909][ T1153] ext4_mb_new_blocks+0xa4d/0x3b70 [ 59.822636][ T1153] ? ext4_ext_search_right+0x2ca/0xb20 [ 59.828095][ T1153] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 59.834255][ T1153] ext4_ext_map_blocks+0x201b/0x33e0 [ 59.839563][ T1153] ? ext4_ext_release+0x10/0x10 [ 59.844424][ T1153] ? down_write_killable+0x170/0x170 [ 59.849710][ T1153] ? ext4_es_lookup_extent+0x41d/0xd10 [ 59.855258][ T1153] ext4_map_blocks+0x4cb/0x1640 [ 59.860112][ T1153] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 59.865310][ T1153] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 59.870856][ T1153] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 59.876849][ T1153] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 59.882309][ T1153] ext4_writepages+0x1a7b/0x33c0 [ 59.887244][ T1153] ? lock_release+0x7c0/0x800 [ 59.891956][ T1153] ? __ext4_mark_inode_dirty+0x940/0x940 [ 59.897610][ T1153] ? __ext4_mark_inode_dirty+0x940/0x940 [ 59.903286][ T1153] ? do_writepages+0xfa/0x2a0 [ 59.907958][ T1153] do_writepages+0xfa/0x2a0 [ 59.912462][ T1153] ? page_writeback_cpu_online+0x10/0x10 [ 59.918112][ T1153] ? do_raw_spin_lock+0x120/0x2d0 [ 59.923135][ T1153] ? do_raw_spin_unlock+0x171/0x260 [ 59.928330][ T1153] ? _raw_spin_unlock+0x24/0x40 [ 59.933184][ T1153] __filemap_fdatawrite_range+0x2aa/0x390 [ 59.938905][ T1153] ? collapse_file+0x35a2/0x4330 [ 59.943837][ T1153] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 59.950252][ T1153] ? _raw_spin_unlock_irq+0x1f/0x80 [ 59.955456][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 59.961443][ T1153] collapse_file+0x35ac/0x4330 [ 59.966244][ T1153] ? collapse_huge_page+0x4350/0x4350 [ 59.971610][ T1153] ? khugepaged+0x2506/0x3fc0 [ 59.976295][ T1153] ? xas_find+0x31a/0x880 [ 59.980624][ T1153] ? check_preemption_disabled+0x38/0x220 [ 59.986365][ T1153] khugepaged+0x3041/0x3fc0 [ 59.990895][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 59.996524][ T1153] ? lock_downgrade+0x840/0x840 [ 60.001373][ T1153] ? finish_wait+0x260/0x260 [ 60.005960][ T1153] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 60.011760][ T1153] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 60.017741][ T1153] ? __kthread_parkme+0x13f/0x1e0 [ 60.022852][ T1153] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 60.028490][ T1153] kthread+0x3b5/0x4a0 [ 60.032557][ T1153] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.038303][ T1153] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.044025][ T1153] ret_from_fork+0x1f/0x30 executing program [ 60.323043][ T21] ================================================================== [ 60.331276][ T21] BUG: KASAN: use-after-free in afs_wake_up_async_call+0x6aa/0x770 [ 60.339256][ T21] Write of size 1 at addr ffff8880972391e4 by task kworker/u4:1/21 [ 60.347140][ T21] [ 60.349528][ T21] CPU: 0 PID: 21 Comm: kworker/u4:1 Not tainted 5.7.0-syzkaller #0 [ 60.358143][ T21] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.358167][ T21] Workqueue: netns cleanup_net [ 60.358175][ T21] Call Trace: [ 60.358201][ T21] dump_stack+0x18f/0x20d [ 60.381151][ T21] ? afs_wake_up_async_call+0x6aa/0x770 [ 60.381163][ T21] ? afs_wake_up_async_call+0x6aa/0x770 [ 60.381179][ T21] ? afs_put_call+0xa40/0xa40 [ 60.396913][ T21] print_address_description.constprop.0.cold+0xd3/0x413 [ 60.396934][ T21] ? vprintk_func+0x97/0x1a6 [ 60.396952][ T21] ? afs_wake_up_async_call+0x6aa/0x770 [ 60.414352][ T21] kasan_report.cold+0x1f/0x37 [ 60.419187][ T21] ? rcu_read_lock_held+0x81/0xb0 [ 60.424189][ T21] ? afs_wake_up_async_call+0x6aa/0x770 [ 60.429731][ T21] afs_wake_up_async_call+0x6aa/0x770 [ 60.435088][ T21] ? afs_close_socket+0x320/0x320 [ 60.440093][ T21] ? afs_put_call+0xa40/0xa40 [ 60.444760][ T21] rxrpc_notify_socket+0x1db/0x5d0 [ 60.449871][ T21] ? afs_put_call+0xa40/0xa40 [ 60.454525][ T21] __rxrpc_set_call_completion.part.0+0x172/0x410 [ 60.460934][ T21] rxrpc_call_completed+0xca/0xf0 [ 60.465957][ T21] rxrpc_discard_prealloc+0x781/0xab0 [ 60.471310][ T21] ? __local_bh_enable_ip+0x18d/0x270 [ 60.476661][ T21] rxrpc_listen+0x147/0x360 [ 60.481160][ T21] afs_close_socket+0x95/0x320 [ 60.485903][ T21] ? afs_purge_servers+0x16d/0x300 [ 60.490994][ T21] ? afs_rx_discard_new_call+0x50/0x50 [ 60.496434][ T21] ? init_wait_var_entry+0x200/0x200 [ 60.501702][ T21] ? rcu_read_lock_held_common+0xa0/0xa0 [ 60.507329][ T21] ? check_preemption_disabled+0x38/0x220 [ 60.513050][ T21] afs_net_exit+0x1bc/0x310 [ 60.517546][ T21] ? afs_net_init+0xe30/0xe30 [ 60.522237][ T21] ops_exit_list.isra.0+0xa8/0x150 [ 60.527356][ T21] cleanup_net+0x511/0xa50 [ 60.531761][ T21] ? unregister_pernet_device+0x70/0x70 [ 60.537293][ T21] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 60.543259][ T21] process_one_work+0x965/0x1690 [ 60.548181][ T21] ? lock_release+0x800/0x800 [ 60.552845][ T21] ? pwq_dec_nr_in_flight+0x310/0x310 [ 60.558206][ T21] ? rwlock_bug.part.0+0x90/0x90 [ 60.563130][ T21] worker_thread+0x96/0xe10 [ 60.567619][ T21] ? process_one_work+0x1690/0x1690 [ 60.572801][ T21] kthread+0x3b5/0x4a0 [ 60.576847][ T21] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.584194][ T21] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 60.589903][ T21] ret_from_fork+0x1f/0x30 [ 60.594311][ T21] [ 60.596629][ T21] Allocated by task 6914: [ 60.601265][ T21] save_stack+0x1b/0x40 [ 60.605434][ T21] __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 60.611160][ T21] kmem_cache_alloc_trace+0x153/0x7d0 [ 60.616554][ T21] afs_alloc_call+0x55/0x630 [ 60.621146][ T21] afs_charge_preallocation+0xe9/0x2d0 [ 60.626582][ T21] afs_open_socket+0x292/0x360 [ 60.631324][ T21] afs_net_init+0xa6c/0xe30 [ 60.635851][ T21] ops_init+0xaf/0x420 [ 60.639911][ T21] setup_net+0x2de/0x860 [ 60.644167][ T21] copy_net_ns+0x293/0x590 [ 60.648562][ T21] create_new_namespaces+0x3fb/0xb30 [ 60.653846][ T21] unshare_nsproxy_namespaces+0xbd/0x1f0 [ 60.659457][ T21] ksys_unshare+0x43d/0x8e0 [ 60.664028][ T21] __x64_sys_unshare+0x2d/0x40 [ 60.668768][ T21] do_syscall_64+0x60/0xe0 [ 60.673513][ T21] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 60.679941][ T21] [ 60.682338][ T21] Freed by task 21: [ 60.686123][ T21] save_stack+0x1b/0x40 [ 60.690254][ T21] __kasan_slab_free+0xf7/0x140 [ 60.695084][ T21] kfree+0x109/0x2b0 [ 60.698955][ T21] afs_put_call+0x585/0xa40 [ 60.703523][ T21] rxrpc_discard_prealloc+0x764/0xab0 [ 60.709009][ T21] rxrpc_listen+0x147/0x360 [ 60.713495][ T21] afs_close_socket+0x95/0x320 [ 60.718241][ T21] afs_net_exit+0x1bc/0x310 [ 60.722742][ T21] ops_exit_list.isra.0+0xa8/0x150 [ 60.727840][ T21] cleanup_net+0x511/0xa50 [ 60.732251][ T21] process_one_work+0x965/0x1690 [ 60.737182][ T21] worker_thread+0x96/0xe10 [ 60.742113][ T21] kthread+0x3b5/0x4a0 [ 60.746165][ T21] ret_from_fork+0x1f/0x30 [ 60.750587][ T21] [ 60.752915][ T21] The buggy address belongs to the object at ffff888097239000 [ 60.752915][ T21] which belongs to the cache kmalloc-1k of size 1024 [ 60.767169][ T21] The buggy address is located 484 bytes inside of [ 60.767169][ T21] 1024-byte region [ffff888097239000, ffff888097239400) [ 60.780514][ T21] The buggy address belongs to the page: [ 60.786135][ T21] page:ffffea00025c8e40 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 [ 60.795222][ T21] flags: 0xfffe0000000200(slab) [ 60.800101][ T21] raw: 00fffe0000000200 ffffea0002a59c48 ffffea0002a19ac8 ffff8880aa000c40 [ 60.808671][ T21] raw: 0000000000000000 ffff888097239000 0000000100000002 0000000000000000 [ 60.817232][ T21] page dumped because: kasan: bad access detected [ 60.823618][ T21] [ 60.825934][ T21] Memory state around the buggy address: [ 60.831627][ T21] ffff888097239080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 60.839665][ T21] ffff888097239100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 60.847700][ T21] >ffff888097239180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 60.855735][ T21] ^ [ 60.862905][ T21] ffff888097239200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 60.871034][ T21] ffff888097239280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 60.879064][ T21] ================================================================== [ 60.887532][ T21] Disabling lock debugging due to kernel taint [ 60.893701][ T21] Kernel panic - not syncing: panic_on_warn set ... [ 60.900279][ T21] CPU: 0 PID: 21 Comm: kworker/u4:1 Tainted: G B 5.7.0-syzkaller #0 [ 60.909541][ T21] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.919595][ T21] Workqueue: netns cleanup_net [ 60.924338][ T21] Call Trace: [ 60.927604][ T21] dump_stack+0x18f/0x20d [ 60.931920][ T21] ? afs_wake_up_async_call+0x5f0/0x770 [ 60.937441][ T21] ? afs_put_call+0xa40/0xa40 [ 60.942095][ T21] panic+0x2e3/0x75c [ 60.945960][ T21] ? __warn_printk+0xf3/0xf3 [ 60.950523][ T21] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 60.956660][ T21] ? trace_hardirqs_on+0x55/0x220 [ 60.961671][ T21] ? afs_wake_up_async_call+0x6aa/0x770 [ 60.967196][ T21] ? afs_wake_up_async_call+0x6aa/0x770 [ 60.972729][ T21] ? afs_put_call+0xa40/0xa40 [ 60.977382][ T21] end_report+0x4d/0x53 [ 60.981510][ T21] kasan_report.cold+0xd/0x37 [ 60.986164][ T21] ? rcu_read_lock_held+0x81/0xb0 [ 60.991257][ T21] ? afs_wake_up_async_call+0x6aa/0x770 [ 60.996792][ T21] afs_wake_up_async_call+0x6aa/0x770 [ 61.002145][ T21] ? afs_close_socket+0x320/0x320 [ 61.007138][ T21] ? afs_put_call+0xa40/0xa40 [ 61.011788][ T21] rxrpc_notify_socket+0x1db/0x5d0 [ 61.016869][ T21] ? afs_put_call+0xa40/0xa40 [ 61.021517][ T21] __rxrpc_set_call_completion.part.0+0x172/0x410 [ 61.027910][ T21] rxrpc_call_completed+0xca/0xf0 [ 61.032914][ T21] rxrpc_discard_prealloc+0x781/0xab0 [ 61.038444][ T21] ? __local_bh_enable_ip+0x18d/0x270 [ 61.043865][ T21] rxrpc_listen+0x147/0x360 [ 61.048347][ T21] afs_close_socket+0x95/0x320 [ 61.053125][ T21] ? afs_purge_servers+0x16d/0x300 [ 61.058224][ T21] ? afs_rx_discard_new_call+0x50/0x50 [ 61.063659][ T21] ? init_wait_var_entry+0x200/0x200 [ 61.068940][ T21] ? rcu_read_lock_held_common+0xa0/0xa0 [ 61.074563][ T21] ? check_preemption_disabled+0x38/0x220 [ 61.080261][ T21] afs_net_exit+0x1bc/0x310 [ 61.084753][ T21] ? afs_net_init+0xe30/0xe30 [ 61.089420][ T21] ops_exit_list.isra.0+0xa8/0x150 [ 61.094506][ T21] cleanup_net+0x511/0xa50 [ 61.098896][ T21] ? unregister_pernet_device+0x70/0x70 [ 61.104425][ T21] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 61.110377][ T21] process_one_work+0x965/0x1690 [ 61.115288][ T21] ? lock_release+0x800/0x800 [ 61.119936][ T21] ? pwq_dec_nr_in_flight+0x310/0x310 [ 61.125292][ T21] ? rwlock_bug.part.0+0x90/0x90 [ 61.130202][ T21] worker_thread+0x96/0xe10 [ 61.134679][ T21] ? process_one_work+0x1690/0x1690 [ 61.139854][ T21] kthread+0x3b5/0x4a0 [ 61.143915][ T21] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.149604][ T21] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 61.155296][ T21] ret_from_fork+0x1f/0x30 [ 61.160288][ T21] Kernel Offset: disabled [ 61.164598][ T21] Rebooting in 86400 seconds..