[ 81.936126] [ 81.937048] ========================= [ 81.938458] [ BUG: held lock freed! ] [ 81.939859] 3.5.0-rc4+ #5 Not tainted [ 81.940062] ------------------------- [ 81.940062] blkid/2963 is freeing memory ffff88000dc3bdc0-ffff88000dc3cdbf, with a lock still held there! [ 81.940062] (&bdev->bd_mutex){+.+.+.}, at: [] __blkdev_put+0x34/0x159 [ 81.940062] 1 lock held by blkid/2963: [ 81.940062] #0: (&bdev->bd_mutex){+.+.+.}, at: [] __blkdev_put+0x34/0x159 [ 81.940062] [ 81.940062] stack backtrace: [ 81.940062] Pid: 2963, comm: blkid Not tainted 3.5.0-rc4+ #5 [ 81.940062] Call Trace: [ 81.940062] [] debug_check_no_locks_freed+0x109/0x14b [ 81.940062] [] ? radix_tree_callback+0x60/0x60 [ 81.940062] [] kmem_cache_free+0x2e/0xa7 [ 81.940062] [] radix_tree_node_rcu_free+0x3b/0x3d [ 81.940062] [] rcu_process_callbacks+0x315/0x590 [ 81.940062] [] ? dsp_cmx_receive+0x26a/0x26a [ 81.940062] [] __do_softirq+0xe0/0x1e8 [ 81.940062] [] ? time_hardirqs_off+0x26/0x2a [ 81.940062] [] call_softirq+0x1c/0x30 [ 81.940062] [] do_softirq+0x4a/0xa2 [ 81.940062] [] irq_exit+0x51/0xbc [ 81.940062] [] do_IRQ+0x8e/0xa5 [ 81.940062] [] common_interrupt+0x6f/0x6f [ 81.940062] [] ? native_flush_tlb_global+0x28/0x2f [ 81.940062] [] __flush_tlb_all+0x15/0x22 [ 81.940062] [] kernel_map_pages+0x81/0xc9 [ 81.940062] [] free_pages_prepare+0x135/0x162 [ 81.940062] [] free_hot_cold_page+0x36/0x142 [ 81.940062] [] ? _raw_spin_unlock_irqrestore+0x45/0x61 [ 81.940062] [] free_hot_cold_page_list+0x5f/0x93 [ 81.940062] [] release_pages+0x18e/0x19d [ 81.940062] [] __pagevec_release+0x21/0x2c [ 81.940062] [] pagevec_release+0xe/0x10 [ 81.940062] [] truncate_inode_pages_range+0xf8/0x304 [ 81.940062] [] truncate_inode_pages+0x12/0x14 [ 81.940062] [] kill_bdev+0x2d/0x32 [ 81.940062] [] __blkdev_put+0x81/0x159 [ 81.940062] [] ? __mutex_unlock_slowpath+0x11e/0x126 [ 81.940062] [] blkdev_put+0x119/0x122 [ 81.940062] [] blkdev_close+0x28/0x2a [ 81.940062] [] fput+0x124/0x235 [ 81.940062] [] filp_close+0x72/0x7d [ 81.940062] [] ? local_clock+0x19/0x52 [ 81.940062] [] sys_close+0x8e/0xc9 [ 81.940062] [] system_call_fastpath+0x16/0x1b [ 83.052316] vhci_hcd: changed 0 [ 85.824070] vhci_hcd: changed 0 [ 84.122949] [ 84.123835] ========================= [ 84.125211] [ BUG: held lock freed! ] [ 84.125211] 3.5.0-rc4+ #4 Not tainted [ 84.125211] ------------------------- [ 84.125211] udevd/2900 is freeing memory ffff880011e11f00-ffff880011e12eff, with a lock still held there! [ 84.125211] (&sb->s_type->i_mutex_key#9){+.+.+.}, at: [] do_last+0x1be/0xa4b [ 84.125211] 1 lock held by udevd/2900: [ 84.125211] #0: (&sb->s_type->i_mutex_key#9){+.+.+.}, at: [] do_last+0x1be/0xa4b [ 84.125211] [ 84.125211] stack backtrace: [ 84.125211] Pid: 2900, comm: udevd Not tainted 3.5.0-rc4+ #4 [ 84.125211] Call Trace: [ 84.125211] [] debug_check_no_locks_freed+0x109/0x14b [ 84.125211] [] kmem_cache_free+0x2e/0xa7 [ 84.125211] [] __kfree_skb+0x7f/0x83 [ 84.125211] [] consume_skb+0x66/0x8a [ 84.125211] [] dev_kfree_skb_any+0x40/0x42 [ 84.125211] [] e1000_unmap_and_free_tx_resource.isra.29+0x5e/0x71 [ 84.125211] [] e1000_clean+0xb0/0x695 [ 84.125211] [] ? mark_held_locks+0x71/0x99 [ 84.125211] [] net_rx_action+0xb3/0x1f8 [ 84.125211] [] ? __do_softirq+0x76/0x1e8 [ 84.125211] [] __do_softirq+0xe0/0x1e8 [ 84.125211] [] ? time_hardirqs_off+0x26/0x2a [ 84.125211] [] call_softirq+0x1c/0x30 [ 84.125211] [] do_softirq+0x4a/0xa2 [ 84.125211] [] irq_exit+0x51/0xbc [ 84.125211] [] do_IRQ+0x8e/0xa5 [ 84.125211] [] common_interrupt+0x6f/0x6f [ 84.125211] [] ? spin_lock+0x9/0xb [ 84.125211] [] ? arch_local_irq_restore+0x6/0xd [ 84.125211] [] lock_acquire+0xf1/0x119 [ 84.125211] [] ? do_last+0x1be/0xa4b [ 84.125211] [] ? do_last+0x1be/0xa4b [ 84.125211] [] __mutex_lock_common+0x58/0x387 [ 84.125211] [] ? do_last+0x1be/0xa4b [ 84.125211] [] ? _raw_spin_unlock+0x28/0x3b [ 84.125211] [] ? lookup_fast+0x174/0x240 [ 84.125211] [] mutex_lock_nested+0x40/0x45 [ 84.125211] [] do_last+0x1be/0xa4b [ 84.125211] [] ? inode_permission+0xac/0xe0 [ 84.125211] [] ? spin_lock+0x9/0xb [ 84.125211] [] ? link_path_walk+0xc5/0x49e [ 84.125211] [] path_openat+0xbf/0x313 [ 84.125211] [] ? trace_hardirqs_off_caller+0x1f/0x9e [ 84.125211] [] ? trace_hardirqs_off+0xd/0xf [ 84.125211] [] ? local_clock+0x3b/0x52 [ 84.125211] [] do_filp_open+0x38/0x86 [ 84.125211] [] ? _raw_spin_unlock+0x28/0x3b [ 84.125211] [] ? alloc_fd+0xe5/0xf7 [ 84.125211] [] do_sys_open+0x6e/0xfb [ 84.125211] [] sys_open+0x21/0x23 [ 84.125211] [] system_call_fastpath+0x16/0x1b [ 86.016078] vhci_hcd: changed 0 [ 88.032215] vhci_hcd: changed 0 [ 83.992074] [ 83.992819] ========================= [ 83.993833] [ BUG: held lock freed! ] [ 83.994875] 3.5.0-rc4+ #7 Not tainted [ 83.996019] ------------------------- [ 83.996019] udevd/2880 is freeing memory ffff880011d65e90-ffff880011d66e8f, with a lock still held there! [ 83.996019] (&anon_vma->mutex){+.+...}, at: [] lock_anon_vma_root.isra.18+0x49/0x5e [ 83.996019] 3 locks held by udevd/2880: [ 83.996019] #0: (&mm->mmap_sem){++++++}, at: [] dup_mm+0xb2/0x454 [ 83.996019] #1: (&mm->mmap_sem/1){+.+.+.}, at: [] dup_mm+0xc7/0x454 [ 83.996019] #2: (&anon_vma->mutex){+.+...}, at: [] lock_anon_vma_root.isra.18+0x49/0x5e [ 83.996019] [ 83.996019] stack backtrace: [ 83.996019] Pid: 2880, comm: udevd Not tainted 3.5.0-rc4+ #7 [ 83.996019] Call Trace: [ 83.996019] [] debug_check_no_locks_freed+0x109/0x14b [ 83.996019] [] ? fcheck_files.isra.4+0x1b/0x1b [ 83.996019] [] kmem_cache_free+0x2e/0xa7 [ 83.996019] [] file_free_rcu+0x52/0x57 [ 83.996019] [] rcu_process_callbacks+0x315/0x590 [ 83.996019] [] ? mark_held_locks+0x71/0x99 [ 83.996019] [] __do_softirq+0xe0/0x1e8 [ 83.996019] [] ? time_hardirqs_off+0x26/0x2a [ 83.996019] [] ? anon_vma_clone+0x3a/0xc6 [ 83.996019] [] call_softirq+0x1c/0x30 [ 83.996019] [] do_softirq+0x4a/0xa2 [ 83.996019] [] irq_exit+0x51/0xbc [ 83.996019] [] smp_apic_timer_interrupt+0x7c/0x8a [ 83.996019] [] apic_timer_interrupt+0x6f/0x80 [ 83.996019] [] ? arch_local_irq_restore+0x6/0xd [ 83.996019] [] kmem_cache_alloc+0xc0/0x15f [ 83.996019] [] anon_vma_clone+0x3a/0xc6 [ 83.996019] [] anon_vma_fork+0x29/0xb7 [ 83.996019] [] dup_mm+0x233/0x454 [ 83.996019] [] copy_process.part.24+0x9ed/0x12dd [ 83.996019] [] ? trace_hardirqs_on_caller+0x123/0x17f [ 83.996019] [] ? local_bh_enable_ip+0xe/0x10 [ 83.996019] [] do_fork+0x132/0x336 [ 83.996019] [] ? sock_setsockopt+0x544/0x57d [ 83.996019] [] ? sysret_check+0x22/0x5d [ 83.996019] [] ? sysret_check+0x22/0x5d [ 83.996019] [] sys_clone+0x28/0x2a [ 83.996019] [] stub_clone+0x13/0x20 [ 83.996019] [] ? system_call_fastpath+0x16/0x1b [ 85.016054] vhci_hcd: changed 0 [ 87.032080] vhci_hcd: changed 0 [ 0.268295] [ 0.268903] ========================= [ 0.269887] [ BUG: held lock freed! ] [ 0.270907] 3.5.0-rc4+ #13 Not tainted [ 0.272016] ------------------------- [ 0.272016] swapper/0/1 is freeing memory ffff88001dae5dd0-ffff88001dae6dcf, with a lock still held there! [ 0.272016] (&type->s_umount_key#5/1){+.+...}, at: [] sget+0x299/0x463 [ 0.272016] 3 locks held by swapper/0/1: [ 0.272016] #0: (&type->s_umount_key#5/1){+.+...}, at: [] sget+0x299/0x463 [ 0.272016] #1: (sb_lock){+.+...}, at: [] sget+0x33/0x463 [ 0.272016] #2: (unnamed_dev_lock){+.+...}, at: [] get_anon_bdev+0x38/0xe8 [ 0.272016] [ 0.272016] stack backtrace: [ 0.272016] Pid: 1, comm: swapper/0 Not tainted 3.5.0-rc4+ #13 [ 0.272016] Call Trace: [ 0.272016] [] debug_check_no_locks_freed+0x109/0x14b [ 0.272016] [] kmem_cache_free+0x2e/0xa7 [ 0.272016] [] ida_get_new_above+0x173/0x184 [ 0.272016] [] ? lock_acquired+0x1e4/0x219 [ 0.272016] [] get_anon_bdev+0x4e/0xe8 [ 0.272016] [] set_anon_super+0x17/0x2a [ 0.272016] [] sget+0x3a3/0x463 [ 0.272016] [] ? get_anon_bdev+0xe8/0xe8 [ 0.272016] [] ? shmem_setxattr+0x97/0x97 [ 0.272016] [] mount_nodev+0x29/0x81 [ 0.272016] [] shmem_mount+0x18/0x1a [ 0.272016] [] mount_fs+0x69/0x156 [ 0.272016] [] ? __alloc_percpu+0x10/0x12 [ 0.272016] [] vfs_kern_mount+0x62/0xd9 [ 0.272016] [] shmem_init+0x7f/0xd3 [ 0.272016] [] kernel_init+0xc2/0x1c5 [ 0.272016] [] ? trace_hardirqs_on_caller+0x16/0x17f [ 0.272016] [] kernel_thread_helper+0x4/0x10 [ 0.272016] [] ? retint_restore_args+0x13/0x13 [ 0.272016] [] ? start_kernel+0x3e7/0x3e7 [ 0.272016] [] ? gs_change+0x13/0x13 [ 0.329861] devtmpfs: initialized [ 0.342301] xor: automatically using best checksumming function: [ 133.909107] [ 133.909702] ========================= [ 133.910694] [ BUG: held lock freed! ] [ 133.911700] 3.5.0-rc4+ #5 Not tainted [ 133.912672] ------------------------- [ 133.912969] swapper/0/0 is freeing memory ffff88001233ce08-ffff88001233de07, with a lock still held there! [ 133.912969] (slock-AF_INET-RPC/1){+.-...}, at: [] tcp_v4_rcv+0x28b/0x6fc [ 133.912969] 3 locks held by swapper/0/0: [ 133.912969] #0: (rcu_read_lock){.+.+..}, at: [] rcu_lock_acquire+0x0/0x29 [ 133.912969] #1: (rcu_read_lock){.+.+..}, at: [] rcu_lock_acquire.constprop.14+0x0/0x30 [ 133.912969] #2: (slock-AF_INET-RPC/1){+.-...}, at: [] tcp_v4_rcv+0x28b/0x6fc [ 133.912969] [ 133.912969] stack backtrace: [ 133.912969] Pid: 0, comm: swapper/0 Not tainted 3.5.0-rc4+ #5 [ 133.912969] Call Trace: [ 133.912969] [] debug_check_no_locks_freed+0x109/0x14b [ 133.912969] [] kmem_cache_free+0x2e/0xa7 [ 133.912969] [] __kfree_skb+0x7f/0x83 [ 133.912969] [] tcp_ack+0x45d/0xc6a [ 133.912969] [] ? local_clock+0x3b/0x52 [ 133.912969] [] tcp_rcv_state_process+0x15a/0x7c6 [ 133.912969] [] tcp_v4_do_rcv+0x341/0x390 [ 133.912969] [] tcp_v4_rcv+0x678/0x6fc [ 133.912969] [] ip_local_deliver_finish+0x165/0x1e4 [ 133.912969] [] ip_local_deliver+0x53/0x84 [ 133.912969] [] ? local_clock+0x19/0x52 [ 133.912969] [] ip_rcv_finish+0x32f/0x367 [ 133.912969] [] ip_rcv+0x210/0x269 [ 133.912969] [] ? rcu_lock_acquire+0x27/0x29 [ 133.912969] [] ? softnet_seq_show+0x68/0x68 [ 133.912969] [] __netif_receive_skb+0x3cd/0x464 [ 133.912969] [] netif_receive_skb+0x65/0x9c [ 133.912969] [] ? __napi_gro_receive+0xf2/0xff [ 133.912969] [] napi_skb_finish+0x26/0x58 [ 133.912969] [] ? local_clock+0x19/0x52 [ 133.912969] [] napi_gro_receive+0x2f/0x34 [ 133.912969] [] e1000_receive_skb+0x57/0x60 [ 133.912969] [] e1000_clean_rx_irq+0x2f2/0x387 [ 133.912969] [] e1000_clean+0x541/0x695 [ 133.912969] [] ? kvm_clock_read+0x2e/0x36 [ 133.912969] [] ? net_rx_action+0x1b3/0x1f8 [ 133.912969] [] net_rx_action+0xb3/0x1f8 [ 133.912969] [] ? __do_softirq+0x76/0x1e8 [ 133.912969] [] __do_softirq+0xe0/0x1e8 [ 133.912969] [] ? time_hardirqs_off+0x26/0x2a [ 133.912969] [] call_softirq+0x1c/0x30 [ 133.912969] [] do_softirq+0x4a/0xa2 [ 133.912969] [] irq_exit+0x51/0xbc [ 133.912969] [] do_IRQ+0x8e/0xa5 [ 133.912969] [] common_interrupt+0x6f/0x6f [ 133.912969] [] ? native_safe_halt+0x6/0x8 [ 133.912969] [] ? trace_hardirqs_on+0xd/0xf [ 133.912969] [] default_idle+0x53/0x90 [ 133.912969] [] cpu_idle+0xcc/0x123 [ 133.912969] [] rest_init+0xd1/0xda [ 133.912969] [] ? csum_partial_copy_generic+0x16c/0x16c [ 133.912969] [] start_kernel+0x3da/0x3e7 [ 133.912969] [] ? repair_env_string+0x5a/0x5a [ 133.912969] [] x86_64_start_reservations+0xb1/0xb5 [ 133.912969] [] x86_64_start_kernel+0xfe/0x10b [ 134.024230] VFS: Mounted root (nfs filesystem) on device 0:14. [ 134.025782] debug: unmapping init [mem 0xffffffff84437000-0xffffffff8480efff] [ 80.585700] [ 80.586455] ========================= [ 80.587618] [ BUG: held lock freed! ] [ 80.588756] 3.5.0-rc4+ #6 Not tainted [ 80.589616] ------------------------- [ 80.589616] swapper/0/0 is freeing memory ffff8800123c2f00-ffff8800123c3eff, with a lock still held there! [ 80.589616] (slock-AF_INET-RPC/1){+.-...}, at: [] tcp_v4_rcv+0x28b/0x6fc [ 80.589616] 3 locks held by swapper/0/0: [ 80.589616] #0: (rcu_read_lock){.+.+..}, at: [] rcu_lock_acquire+0x0/0x29 [ 80.589616] #1: (rcu_read_lock){.+.+..}, at: [] rcu_lock_acquire.constprop.14+0x0/0x30 [ 80.589616] #2: (slock-AF_INET-RPC/1){+.-...}, at: [] tcp_v4_rcv+0x28b/0x6fc [ 80.589616] [ 80.589616] stack backtrace: [ 80.589616] Pid: 0, comm: swapper/0 Not tainted 3.5.0-rc4+ #6 [ 80.589616] Call Trace: [ 80.589616] [] debug_check_no_locks_freed+0x109/0x14b [ 80.589616] [] kmem_cache_free+0x2e/0xa7 [ 80.589616] [] __kfree_skb+0x7f/0x83 [ 80.589616] [] tcp_data_queue+0x50d/0x8c3 [ 80.589616] [] tcp_rcv_established+0x598/0x61c [ 80.589616] [] tcp_v4_do_rcv+0x1a2/0x390 [ 80.589616] [] tcp_v4_rcv+0x678/0x6fc [ 80.589616] [] ip_local_deliver_finish+0x165/0x1e4 [ 80.589616] [] ip_local_deliver+0x53/0x84 [ 80.589616] [] ? skb_dst.isra.5+0x37/0x5b [ 80.589616] [] ? local_clock+0x19/0x52 [ 80.589616] [] ip_rcv_finish+0x2e1/0x319 [ 80.589616] [] ip_rcv+0x210/0x26b [ 80.589616] [] ? rcu_lock_acquire+0x27/0x29 [ 80.589616] [] ? softnet_seq_show+0x68/0x68 [ 80.589616] [] __netif_receive_skb+0x3cd/0x464 [ 80.589616] [] netif_receive_skb+0x65/0x9c [ 80.589616] [] ? __napi_gro_receive+0xf2/0xff [ 80.589616] [] napi_skb_finish+0x26/0x58 [ 80.589616] [] ? local_clock+0x19/0x52 [ 80.589616] [] napi_gro_receive+0x2f/0x34 [ 80.589616] [] e1000_receive_skb+0x57/0x60 [ 80.589616] [] e1000_clean_rx_irq+0x2f2/0x387 [ 80.589616] [] e1000_clean+0x541/0x695 [ 80.589616] [] ? kvm_clock_read+0x2e/0x36 [ 80.589616] [] net_rx_action+0xb3/0x1f8 [ 80.589616] [] ? __do_softirq+0x76/0x1e8 [ 80.589616] [] __do_softirq+0xe0/0x1e8 [ 80.589616] [] ? time_hardirqs_off+0x26/0x2a [ 80.589616] [] call_softirq+0x1c/0x30 [ 80.589616] [] do_softirq+0x4a/0xa2 [ 80.589616] [] irq_exit+0x51/0xbc [ 80.589616] [] do_IRQ+0x8e/0xa5 [ 80.589616] [] common_interrupt+0x6f/0x6f [ 80.589616] [] ? native_safe_halt+0x6/0x8 [ 80.589616] [] ? trace_hardirqs_on+0xd/0xf [ 80.589616] [] default_idle+0x53/0x90 [ 80.589616] [] cpu_idle+0xcc/0x123 [ 80.589616] [] rest_init+0xd1/0xda [ 80.589616] [] ? csum_partial_copy_generic+0x16c/0x16c [ 80.589616] [] start_kernel+0x3da/0x3e7 [ 80.589616] [] ? repair_env_string+0x5a/0x5a [ 80.589616] [] x86_64_start_reservations+0xb1/0xb5 [ 80.589616] [] x86_64_start_kernel+0xfe/0x10b [ 80.709434] VFS: Mounted root (nfs filesystem) on device 0:14. [ 80.727558] debug: unmapping init [mem 0xffffffff84438000-0xffffffff8480ffff] [ 143.280572] [ 143.281121] ========================= [ 143.282527] [ BUG: held lock freed! ] [ 143.284030] 3.5.0-rc4+ #4 Not tainted [ 143.284165] ------------------------- [ 143.284165] rcu_sched/9 is freeing memory ffff8800123b1f00-ffff8800123b2eff, with a lock still held there! [ 143.284165] (slock-AF_INET-RPC/1){+.-...}, at: [] tcp_v4_rcv+0x28b/0x6fc [ 143.284165] 3 locks held by rcu_sched/9: [ 143.284165] #0: (rcu_read_lock){.+.+..}, at: [] rcu_lock_acquire+0x0/0x29 [ 143.284165] #1: (rcu_read_lock){.+.+..}, at: [] rcu_lock_acquire.constprop.14+0x0/0x30 [ 143.284165] #2: (slock-AF_INET-RPC/1){+.-...}, at: [] tcp_v4_rcv+0x28b/0x6fc [ 143.284165] [ 143.284165] stack backtrace: [ 143.284165] Pid: 9, comm: rcu_sched Not tainted 3.5.0-rc4+ #4 [ 143.284165] Call Trace: [ 143.284165] [] debug_check_no_locks_freed+0x109/0x14b [ 143.284165] [] kmem_cache_free+0x2e/0xa7 [ 143.284165] [] __kfree_skb+0x7f/0x83 [ 143.284165] [] tcp_rcv_state_process+0x305/0x7c6 [ 143.284165] [] tcp_v4_do_rcv+0x341/0x390 [ 143.284165] [] tcp_v4_rcv+0x678/0x6fc [ 143.284165] [] ip_local_deliver_finish+0x165/0x1e4 [ 143.284165] [] ip_local_deliver+0x53/0x84 [ 143.284165] [] ? skb_dst.isra.5+0x37/0x5b [ 143.284165] [] ? local_clock+0x19/0x52 [ 143.284165] [] ip_rcv_finish+0x32f/0x367 [ 143.284165] [] ip_rcv+0x210/0x269 [ 143.284165] [] ? rcu_lock_acquire+0x27/0x29 [ 143.284165] [] ? softnet_seq_show+0x68/0x68 [ 143.284165] [] __netif_receive_skb+0x3cd/0x464 [ 143.284165] [] netif_receive_skb+0x65/0x9c [ 143.284165] [] ? __napi_gro_receive+0xf2/0xff [ 143.284165] [] napi_skb_finish+0x26/0x58 [ 143.284165] [] ? local_clock+0x19/0x52 [ 143.284165] [] napi_gro_receive+0x2f/0x34 [ 143.284165] [] e1000_receive_skb+0x57/0x60 [ 143.284165] [] e1000_clean_rx_irq+0x2f2/0x387 [ 143.284165] [] e1000_clean+0x541/0x695 [ 143.284165] [] ? kvm_clock_read+0x2e/0x36 [ 143.284165] [] ? net_rx_action+0x1b3/0x1f8 [ 143.284165] [] net_rx_action+0xb3/0x1f8 [ 143.284165] [] ? __do_softirq+0x76/0x1e8 [ 143.284165] [] __do_softirq+0xe0/0x1e8 [ 143.284165] [] ? time_hardirqs_off+0x26/0x2a [ 143.284165] [] call_softirq+0x1c/0x30 [ 143.284165] [] do_softirq+0x4a/0xa2 [ 143.284165] [] irq_exit+0x51/0xbc [ 143.284165] [] do_IRQ+0x8e/0xa5 [ 143.284165] [] ? rcu_is_cpu_idle+0x3a/0x3a [ 143.284165] [] common_interrupt+0x6f/0x6f [ 143.284165] [] ? arch_local_irq_restore+0x6/0xd [ 143.284165] [] _raw_spin_unlock_irqrestore+0x4d/0x61 [ 143.284165] [] force_qs_rnp+0xf4/0x13c [ 143.284165] [] rcu_gp_fqs+0x2d/0x67 [ 143.284165] [] rcu_gp_kthread+0x46d/0x5fd [ 143.284165] [] ? bit_waitqueue+0x80/0x80 [ 143.284165] [] ? rcu_gp_fqs+0x67/0x67 [ 143.284165] [] kthread+0xaf/0xb7 [ 143.284165] [] ? trace_hardirqs_on_thunk+0x3a/0x3f [ 143.284165] [] kernel_thread_helper+0x4/0x10 [ 143.284165] [] ? retint_restore_args+0x13/0x13 [ 143.284165] [] ? flush_kthread_worker+0x101/0x101 [ 143.284165] [] ? gs_change+0x13/0x13 [ 143.393686] VFS: Mounted root (nfs filesystem) on device 0:14. [ 143.397844] debug: unmapping init [mem 0xffffffff84437000-0xffffffff8480efff]