RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f07988e46d4 R13: 00000000004c7ca0 R14: 00000000004e4d08 R15: 0000000000000004 ====================================================== WARNING: possible circular locking dependency detected 4.14.158-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.2/22352 is trying to acquire lock: (console_owner){-.-.}, at: [] console_trylock_spinning kernel/printk/printk.c:1658 [inline] (console_owner){-.-.}, at: [] vprintk_emit kernel/printk/printk.c:1922 [inline] (console_owner){-.-.}, at: [] vprintk_emit+0x2f1/0x600 kernel/printk/printk.c:1888 but task is already holding lock: (&(&port->lock)->rlock){-.-.}, at: [] pty_write+0xe0/0x1d0 drivers/tty/pty.c:120 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (&(&port->lock)->rlock){-.-.}: lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x95/0xcd kernel/locking/spinlock.c:160 tty_port_tty_get+0x22/0x90 drivers/tty/tty_port.c:287 tty_port_default_wakeup+0x16/0x40 drivers/tty/tty_port.c:46 tty_port_tty_wakeup+0x57/0x70 drivers/tty/tty_port.c:389 uart_write_wakeup+0x46/0x70 drivers/tty/serial/serial_core.c:116 serial8250_tx_chars+0x40d/0xa10 drivers/tty/serial/8250/8250_port.c:1810 serial8250_handle_irq.part.0+0x206/0x250 drivers/tty/serial/8250/8250_port.c:1883 serial8250_handle_irq drivers/tty/serial/8250/8250_port.c:1869 [inline] serial8250_default_handle_irq+0xa1/0x120 drivers/tty/serial/8250/8250_port.c:1899 serial8250_interrupt+0xe9/0x1a0 drivers/tty/serial/8250/8250_core.c:129 __handle_irq_event_percpu+0x125/0x7f0 kernel/irq/handle.c:147 handle_irq_event_percpu+0x65/0x130 kernel/irq/handle.c:187 handle_irq_event+0xa7/0x134 kernel/irq/handle.c:204 handle_edge_irq+0x22b/0x840 kernel/irq/chip.c:770 generic_handle_irq_desc include/linux/irqdesc.h:159 [inline] handle_irq+0x39/0x50 arch/x86/kernel/irq_64.c:87 do_IRQ+0x99/0x1d0 arch/x86/kernel/irq.c:230 ret_from_intr+0x0/0x1e native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:60 arch_cpu_idle+0xa/0x10 arch/x86/kernel/process.c:557 default_idle_call+0x36/0x90 kernel/sched/idle.c:98 cpuidle_idle_call kernel/sched/idle.c:156 [inline] do_idle+0x262/0x3d0 kernel/sched/idle.c:246 cpu_startup_entry+0x1b/0x20 kernel/sched/idle.c:351 rest_init+0x1d9/0x1e2 init/main.c:434 start_kernel+0x6df/0x6fd init/main.c:708 x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:399 x86_64_start_kernel+0x77/0x7b arch/x86/kernel/head64.c:380 secondary_startup_64+0xa5/0xb0 arch/x86/kernel/head_64.S:240 -> #1 (&port_lock_key){-.-.}: lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x95/0xcd kernel/locking/spinlock.c:160 serial8250_console_write+0x709/0x930 drivers/tty/serial/8250/8250_port.c:3232 univ8250_console_write+0x5f/0x70 drivers/tty/serial/8250/8250_core.c:597 call_console_drivers kernel/printk/printk.c:1725 [inline] console_unlock+0x9ba/0xed0 kernel/printk/printk.c:2397 vprintk_emit kernel/printk/printk.c:1923 [inline] vprintk_emit+0x1f9/0x600 kernel/printk/printk.c:1888 vprintk_default+0x28/0x30 kernel/printk/printk.c:1963 vprintk_func+0x5d/0x159 kernel/printk/printk_safe.c:401 printk+0x9e/0xbc kernel/printk/printk.c:1996 register_console+0x614/0x9e0 kernel/printk/printk.c:2716 univ8250_console_init+0x33/0x3f drivers/tty/serial/8250/8250_core.c:692 console_init+0x4d/0x5d kernel/printk/printk.c:2797 start_kernel+0x43c/0x6fd init/main.c:634 x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:399 x86_64_start_kernel+0x77/0x7b arch/x86/kernel/head64.c:380 secondary_startup_64+0xa5/0xb0 arch/x86/kernel/head_64.S:240 -> #0 (console_owner){-.-.}: check_prev_add kernel/locking/lockdep.c:1901 [inline] check_prevs_add kernel/locking/lockdep.c:2018 [inline] validate_chain kernel/locking/lockdep.c:2460 [inline] __lock_acquire+0x2cb3/0x4620 kernel/locking/lockdep.c:3487 lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994 console_trylock_spinning kernel/printk/printk.c:1679 [inline] vprintk_emit kernel/printk/printk.c:1922 [inline] vprintk_emit+0x32e/0x600 kernel/printk/printk.c:1888 vprintk_default+0x28/0x30 kernel/printk/printk.c:1963 vprintk_func+0x5d/0x159 kernel/printk/printk_safe.c:401 printk+0x9e/0xbc kernel/printk/printk.c:1996 fail_dump lib/fault-inject.c:44 [inline] should_fail.cold+0xe4/0x159 lib/fault-inject.c:149 should_failslab+0xdb/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] __do_kmalloc mm/slab.c:3718 [inline] __kmalloc+0x71/0x7a0 mm/slab.c:3729 kmalloc include/linux/slab.h:493 [inline] tty_buffer_alloc drivers/tty/tty_buffer.c:169 [inline] __tty_buffer_request_room+0x1a4/0x500 drivers/tty/tty_buffer.c:267 tty_insert_flip_string_fixed_flag+0x8a/0x1c0 drivers/tty/tty_buffer.c:312 tty_insert_flip_string include/linux/tty_flip.h:37 [inline] pty_write+0x113/0x1d0 drivers/tty/pty.c:122 n_hdlc_send_frames+0x238/0x3e0 drivers/tty/n_hdlc.c:404 n_hdlc_tty_write+0x4ca/0x5b0 drivers/tty/n_hdlc.c:714 do_tty_write drivers/tty/tty_io.c:959 [inline] tty_write+0x3f6/0x700 drivers/tty/tty_io.c:1043 __vfs_write+0x105/0x6b0 fs/read_write.c:480 vfs_write+0x198/0x500 fs/read_write.c:544 SYSC_write fs/read_write.c:590 [inline] SyS_write+0xfd/0x230 fs/read_write.c:582 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 other info that might help us debug this: Chain exists of: console_owner --> &port_lock_key --> &(&port->lock)->rlock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&(&port->lock)->rlock); lock(&port_lock_key); lock(&(&port->lock)->rlock); lock(console_owner); *** DEADLOCK *** 3 locks held by syz-executor.2/22352: #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376 #1: (&tty->atomic_write_lock){+.+.}, at: [] tty_write_lock+0x20/0x60 drivers/tty/tty_io.c:885 #2: (&(&port->lock)->rlock){-.-.}, at: [] pty_write+0xe0/0x1d0 drivers/tty/pty.c:120 stack backtrace: CPU: 0 PID: 22352 Comm: syz-executor.2 Not tainted 4.14.158-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x142/0x197 lib/dump_stack.c:58 print_circular_bug.isra.0.cold+0x1cc/0x28f kernel/locking/lockdep.c:1258 check_prev_add kernel/locking/lockdep.c:1901 [inline] check_prevs_add kernel/locking/lockdep.c:2018 [inline] validate_chain kernel/locking/lockdep.c:2460 [inline] __lock_acquire+0x2cb3/0x4620 kernel/locking/lockdep.c:3487 lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994 console_trylock_spinning kernel/printk/printk.c:1679 [inline] vprintk_emit kernel/printk/printk.c:1922 [inline] vprintk_emit+0x32e/0x600 kernel/printk/printk.c:1888 vprintk_default+0x28/0x30 kernel/printk/printk.c:1963 vprintk_func+0x5d/0x159 kernel/printk/printk_safe.c:401 printk+0x9e/0xbc kernel/printk/printk.c:1996 fail_dump lib/fault-inject.c:44 [inline] should_fail.cold+0xe4/0x159 lib/fault-inject.c:149 should_failslab+0xdb/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] __do_kmalloc mm/slab.c:3718 [inline] __kmalloc+0x71/0x7a0 mm/slab.c:3729 kmalloc include/linux/slab.h:493 [inline] tty_buffer_alloc drivers/tty/tty_buffer.c:169 [inline] __tty_buffer_request_room+0x1a4/0x500 drivers/tty/tty_buffer.c:267 tty_insert_flip_string_fixed_flag+0x8a/0x1c0 drivers/tty/tty_buffer.c:312 tty_insert_flip_string include/linux/tty_flip.h:37 [inline] pty_write+0x113/0x1d0 drivers/tty/pty.c:122 n_hdlc_send_frames+0x238/0x3e0 drivers/tty/n_hdlc.c:404 n_hdlc_tty_write+0x4ca/0x5b0 drivers/tty/n_hdlc.c:714 do_tty_write drivers/tty/tty_io.c:959 [inline] tty_write+0x3f6/0x700 drivers/tty/tty_io.c:1043 __vfs_write+0x105/0x6b0 fs/read_write.c:480 vfs_write+0x198/0x500 fs/read_write.c:544 SYSC_write fs/read_write.c:590 [inline] SyS_write+0xfd/0x230 fs/read_write.c:582 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a909 RSP: 002b:00007f07988e3c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f07988e3c90 RCX: 000000000045a909 RDX: 00000000fffffe00 RSI: 0000000020000040 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f07988e46d4 R13: 00000000004c7ca0 R14: 00000000004e4d08 R15: 0000000000000004 kobject: 'loop4' (ffff8880a416f6a0): kobject_uevent_env CPU: 0 PID: 22346 Comm: syz-executor.3 Not tainted 4.14.158-syzkaller #0 kobject: 'loop4' (ffff8880a416f6a0): fill_kobj_path: path = '/devices/virtual/block/loop4' Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x142/0x197 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10f/0x159 lib/fault-inject.c:149 should_fail_alloc_page mm/page_alloc.c:2891 [inline] prepare_alloc_pages mm/page_alloc.c:4124 [inline] __alloc_pages_nodemask+0x1d6/0x7a0 mm/page_alloc.c:4172 kobject: 'loop2' (ffff8880a411a4a0): kobject_uevent_env kobject: 'loop2' (ffff8880a411a4a0): fill_kobj_path: path = '/devices/virtual/block/loop2' alloc_pages_current+0xec/0x1e0 mm/mempolicy.c:2113 alloc_pages include/linux/gfp.h:520 [inline] ion_page_pool_alloc_pages drivers/staging/android/ion/ion_page_pool.c:30 [inline] ion_page_pool_alloc+0x11f/0x1c0 drivers/staging/android/ion/ion_page_pool.c:89 alloc_buffer_page drivers/staging/android/ion/ion_system_heap.c:75 [inline] alloc_largest_available drivers/staging/android/ion/ion_system_heap.c:115 [inline] ion_system_heap_allocate+0x138/0x910 drivers/staging/android/ion/ion_system_heap.c:146 ion_buffer_create drivers/staging/android/ion/ion.c:94 [inline] ion_alloc+0x222/0x860 drivers/staging/android/ion/ion.c:425 ion_ioctl+0x105/0x217 drivers/staging/android/ion/ion-ioctl.c:87 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a909 RSP: 002b:00007f2b54a69c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f2b54a69c90 RCX: 000000000045a909 RDX: 00000000200001c0 RSI: 00000000c0184900 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2b54a6a6d4 R13: 00000000004c39d9 R14: 00000000004d8ee8 R15: 0000000000000004 0 syz-executor.1 cpuset=syz1 mems_allowed=0-1 CPU: 0 PID: 22334 Comm: syz-executor.1 Not tainted 4.14.158-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x142/0x197 lib/dump_stack.c:58 warn_alloc.cold+0x96/0x1af mm/page_alloc.c:3248 __alloc_pages_slowpath+0x23c6/0x2930 mm/page_alloc.c:4095 __alloc_pages_nodemask+0x62c/0x7a0 mm/page_alloc.c:4198 alloc_pages_current+0xec/0x1e0 mm/mempolicy.c:2113 alloc_pages include/linux/gfp.h:520 [inline] ion_page_pool_alloc_pages drivers/staging/android/ion/ion_page_pool.c:30 [inline] ion_page_pool_alloc+0x11f/0x1c0 drivers/staging/android/ion/ion_page_pool.c:89 alloc_buffer_page drivers/staging/android/ion/ion_system_heap.c:75 [inline] alloc_largest_available drivers/staging/android/ion/ion_system_heap.c:115 [inline] ion_system_heap_allocate+0x138/0x910 drivers/staging/android/ion/ion_system_heap.c:146 ion_buffer_create drivers/staging/android/ion/ion.c:94 [inline] ion_alloc+0x222/0x860 drivers/staging/android/ion/ion.c:425 ion_ioctl+0x105/0x217 drivers/staging/android/ion/ion-ioctl.c:87 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a909 RSP: 002b:00007fd4d76a8c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fd4d76a8c90 RCX: 000000000045a909 RDX: 00000000200001c0 RSI: 00000000c0184900 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd4d76a96d4 R13: 00000000004c39d9 R14: 00000000004d8ee8 R15: 0000000000000007 warn_alloc_show_mem: 1 callbacks suppressed Mem-Info: active_anon:279940 inactive_anon:191 isolated_anon:0 active_file:1637 inactive_file:5347 isolated_file:0 unevictable:0 dirty:265 writeback:0 unstable:0 slab_reclaimable:14131 slab_unreclaimable:114237 mapped:57438 shmem:379 pagetables:7995 bounce:0 free:985912 free_pcp:275 free_cma:0 Node 0 active_anon:1119364kB inactive_anon:764kB active_file:108kB inactive_file:456kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:209116kB dirty:228kB writeback:0kB shmem:1516kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 630784kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no Node 0 DMA free:10504kB min:216kB low:268kB high:320kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 2569 2569 2569 2569 Node 0 DMA32 free:218832kB min:36380kB low:45472kB high:54564kB active_anon:1119364kB inactive_anon:764kB active_file:108kB inactive_file:456kB unevictable:0kB writepending:228kB present:3129332kB managed:2634384kB mlocked:0kB kernel_stack:16032kB pagetables:31916kB bounce:0kB free_pcp:1100kB local_pcp:656kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 Node 0 Normal free:0kB min:0kB low:0kB high:0kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:0kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 Node 0 DMA: 6*4kB (UE) 8*8kB (UE) 7*16kB (UE) 6*32kB (UE) 2*64kB (UE) 2*128kB (UE) 2*256kB (UE) 2*512kB (UE) 2*1024kB (UE) 3*2048kB (UME) 0*4096kB = 10504kB Node 0 DMA32: 7664*4kB (UME) 6782*8kB (UME) 3393*16kB (UME) 2352*32kB (UM) 31*64kB (UM) 2*128kB (U) 0*256kB 0*512kB 0*1024kB 1*2048kB (M) 0*4096kB = 218752kB Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 7364 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 335858 pages reserved 0 pages cma reserved kobject: 'loop5' (ffff8880a42125e0): kobject_uevent_env FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: 'loop5' (ffff8880a42125e0): fill_kobj_path: path = '/devices/virtual/block/loop5' CPU: 0 PID: 22364 Comm: syz-executor.2 Not tainted 4.14.158-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x142/0x197 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10f/0x159 lib/fault-inject.c:149 kobject: 'loop1' (ffff8880a40c2420): kobject_uevent_env should_failslab+0xdb/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] __do_kmalloc mm/slab.c:3718 [inline] __kmalloc+0x71/0x7a0 mm/slab.c:3729 kobject: 'loop1' (ffff8880a40c2420): fill_kobj_path: path = '/devices/virtual/block/loop1' kmalloc include/linux/slab.h:493 [inline] tty_buffer_alloc drivers/tty/tty_buffer.c:169 [inline] __tty_buffer_request_room+0x1a4/0x500 drivers/tty/tty_buffer.c:267 tty_insert_flip_string_fixed_flag+0x8a/0x1c0 drivers/tty/tty_buffer.c:312 tty_insert_flip_string include/linux/tty_flip.h:37 [inline] pty_write+0x113/0x1d0 drivers/tty/pty.c:122 n_hdlc_send_frames+0x238/0x3e0 drivers/tty/n_hdlc.c:404 n_hdlc_tty_write+0x4ca/0x5b0 drivers/tty/n_hdlc.c:714 do_tty_write drivers/tty/tty_io.c:959 [inline] tty_write+0x3f6/0x700 drivers/tty/tty_io.c:1043 __vfs_write+0x105/0x6b0 fs/read_write.c:480 vfs_write+0x198/0x500 fs/read_write.c:544 SYSC_write fs/read_write.c:590 [inline] SyS_write+0xfd/0x230 fs/read_write.c:582 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a909 RSP: 002b:00007f07988e3c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f07988e3c90 RCX: 000000000045a909 RDX: 00000000fffffe00 RSI: 0000000020000040 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f07988e46d4 R13: 00000000004c7ca0 R14: 00000000004e4d08 R15: 0000000000000004 kobject: 'loop4' (ffff8880a416f6a0): kobject_uevent_env kobject: 'loop4' (ffff8880a416f6a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (ffff8880a411a4a0): kobject_uevent_env kobject: 'loop2' (ffff8880a411a4a0): fill_kobj_path: path = '/devices/virtual/block/loop2' syz-executor.1: page allocation failure: order:4, mode:0x142c0c2(GFP_HIGHUSER|__GFP_COMP|__GFP_ZERO), nodemask=0 syz-executor.1 cpuset=syz1 mems_allowed=0-1 CPU: 1 PID: 22362 Comm: syz-executor.1 Not tainted 4.14.158-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x142/0x197 lib/dump_stack.c:58 warn_alloc.cold+0x96/0x1af mm/page_alloc.c:3248 __alloc_pages_slowpath+0x23c6/0x2930 mm/page_alloc.c:4095 __alloc_pages_nodemask+0x62c/0x7a0 mm/page_alloc.c:4198 alloc_pages_current+0xec/0x1e0 mm/mempolicy.c:2113 alloc_pages include/linux/gfp.h:520 [inline] ion_page_pool_alloc_pages drivers/staging/android/ion/ion_page_pool.c:30 [inline] ion_page_pool_alloc+0x11f/0x1c0 drivers/staging/android/ion/ion_page_pool.c:89 alloc_buffer_page drivers/staging/android/ion/ion_system_heap.c:75 [inline] alloc_largest_available drivers/staging/android/ion/ion_system_heap.c:115 [inline] ion_system_heap_allocate+0x138/0x910 drivers/staging/android/ion/ion_system_heap.c:146 ion_buffer_create drivers/staging/android/ion/ion.c:94 [inline] ion_alloc+0x222/0x860 drivers/staging/android/ion/ion.c:425 ion_ioctl+0x105/0x217 drivers/staging/android/ion/ion-ioctl.c:87 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a909 RSP: 002b:00007fd4d76a8c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a909 RDX: 00000000200001c0 RSI: 00000000c0184900 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd4d76a96d4 R13: 00000000004c39d9 R14: 00000000004d8ee8 R15: 00000000ffffffff FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 22377 Comm: syz-executor.2 Not tainted 4.14.158-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x142/0x197 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10f/0x159 lib/fault-inject.c:149 should_failslab+0xdb/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] __do_kmalloc mm/slab.c:3718 [inline] __kmalloc+0x71/0x7a0 mm/slab.c:3729 kmalloc include/linux/slab.h:493 [inline] tty_buffer_alloc drivers/tty/tty_buffer.c:169 [inline] __tty_buffer_request_room+0x1a4/0x500 drivers/tty/tty_buffer.c:267 tty_insert_flip_string_fixed_flag+0x8a/0x1c0 drivers/tty/tty_buffer.c:312 tty_insert_flip_string include/linux/tty_flip.h:37 [inline] pty_write+0x113/0x1d0 drivers/tty/pty.c:122 n_hdlc_send_frames+0x238/0x3e0 drivers/tty/n_hdlc.c:404 n_hdlc_tty_write+0x4ca/0x5b0 drivers/tty/n_hdlc.c:714 do_tty_write drivers/tty/tty_io.c:959 [inline] tty_write+0x3f6/0x700 drivers/tty/tty_io.c:1043 __vfs_write+0x105/0x6b0 fs/read_write.c:480 vfs_write+0x198/0x500 fs/read_write.c:544 SYSC_write fs/read_write.c:590 [inline] SyS_write+0xfd/0x230 fs/read_write.c:582 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a909 RSP: 002b:00007f07988e3c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f07988e3c90 RCX: 000000000045a909 RDX: 00000000fffffe00 RSI: 0000000020000040 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f07988e46d4 R13: 00000000004c7ca0 R14: 00000000004e4d08 R15: 0000000000000004 kobject: 'loop2' (ffff8880a411a4a0): kobject_uevent_env kobject: 'loop2' (ffff8880a411a4a0): fill_kobj_path: path = '/devices/virtual/block/loop2' FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 22380 Comm: syz-executor.2 Not tainted 4.14.158-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x142/0x197 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10f/0x159 lib/fault-inject.c:149 should_failslab+0xdb/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] __do_kmalloc mm/slab.c:3718 [inline] __kmalloc+0x71/0x7a0 mm/slab.c:3729 kmalloc include/linux/slab.h:493 [inline] tty_buffer_alloc drivers/tty/tty_buffer.c:169 [inline] __tty_buffer_request_room+0x1a4/0x500 drivers/tty/tty_buffer.c:267 tty_insert_flip_string_fixed_flag+0x8a/0x1c0 drivers/tty/tty_buffer.c:312 tty_insert_flip_string include/linux/tty_flip.h:37 [inline] pty_write+0x113/0x1d0 drivers/tty/pty.c:122 n_hdlc_send_frames+0x238/0x3e0 drivers/tty/n_hdlc.c:404 n_hdlc_tty_write+0x4ca/0x5b0 drivers/tty/n_hdlc.c:714 do_tty_write drivers/tty/tty_io.c:959 [inline] tty_write+0x3f6/0x700 drivers/tty/tty_io.c:1043 __vfs_write+0x105/0x6b0 fs/read_write.c:480 vfs_write+0x198/0x500 fs/read_write.c:544 SYSC_write fs/read_write.c:590 [inline] SyS_write+0xfd/0x230 fs/read_write.c:582 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a909 RSP: 002b:00007f07988e3c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f07988e3c90 RCX: 000000000045a909 RDX: 00000000fffffe00 RSI: 0000000020000040 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f07988e46d4 R13: 00000000004c7ca0 R14: 00000000004e4d08 R15: 0000000000000004 kobject: 'loop3' (ffff8880a4152da0): kobject_uevent_env kobject: 'loop3' (ffff8880a4152da0): fill_kobj_path: path = '/devices/virtual/block/loop3' audit: type=1326 audit(2404.370:384): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=22408 comm="syz-executor.4" exe="/root/syz-executor.4" sig=9 arch=c000003e syscall=228 compat=0 ip=0x45d74a code=0x0 kobject: 'loop0' (ffff888063f926a0): kobject_uevent_env kobject: 'loop0' (ffff888063f926a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (ffff8880a416f6a0): kobject_uevent_env kobject: 'loop4' (ffff8880a416f6a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a42125e0): kobject_uevent_env kobject: 'loop5' (ffff8880a42125e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (ffff8880a411a4a0): kobject_uevent_env kobject: 'loop2' (ffff8880a411a4a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (ffff8880a416f6a0): kobject_uevent_env kobject: 'loop4' (ffff8880a416f6a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (ffff888063f926a0): kobject_uevent_env kobject: 'loop0' (ffff888063f926a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (ffff8880a42125e0): kobject_uevent_env kobject: 'loop5' (ffff8880a42125e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (ffff8880a411a4a0): kobject_uevent_env kobject: 'loop2' (ffff8880a411a4a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (ffff8880a416f6a0): kobject_uevent_env kobject: 'loop4' (ffff8880a416f6a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a42125e0): kobject_uevent_env kobject: 'loop5' (ffff8880a42125e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (ffff8880a40c2420): kobject_uevent_env kobject: 'loop1' (ffff8880a40c2420): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (ffff888063f926a0): kobject_uevent_env kobject: 'loop0' (ffff888063f926a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (ffff8880a411a4a0): kobject_uevent_env kobject: 'loop2' (ffff8880a411a4a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a42125e0): kobject_uevent_env kobject: 'loop5' (ffff8880a42125e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (ffff8880a4152da0): kobject_uevent_env kobject: 'loop3' (ffff8880a4152da0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (ffff8880a411a4a0): kobject_uevent_env kobject: 'loop2' (ffff8880a411a4a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a42125e0): kobject_uevent_env kobject: 'loop5' (ffff8880a42125e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (ffff888063f926a0): kobject_uevent_env kobject: 'loop0' (ffff888063f926a0): fill_kobj_path: path = '/devices/virtual/block/loop0' audit: type=1326 audit(2405.170:385): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=22408 comm="syz-executor.4" exe="/root/syz-executor.4" sig=9 arch=c000003e syscall=228 compat=0 ip=0x45d74a code=0x0 kobject: 'loop5' (ffff8880a42125e0): kobject_uevent_env kobject: 'loop5' (ffff8880a42125e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (ffff888063f926a0): kobject_uevent_env kobject: 'loop0' (ffff888063f926a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (ffff8880a411a4a0): kobject_uevent_env kobject: 'loop2' (ffff8880a411a4a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (ffff8880a416f6a0): kobject_uevent_env kobject: 'loop4' (ffff8880a416f6a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop4' (ffff8880a416f6a0): kobject_uevent_env kobject: 'loop4' (ffff8880a416f6a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (ffff8880a411a4a0): kobject_uevent_env kobject: 'loop2' (ffff8880a411a4a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (ffff8880a4152da0): kobject_uevent_env kobject: 'loop3' (ffff8880a4152da0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (ffff8880a40c2420): kobject_uevent_env kobject: 'loop1' (ffff8880a40c2420): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (ffff8880a4152da0): kobject_uevent_env kobject: 'loop4' (ffff8880a416f6a0): kobject_uevent_env kobject: 'loop3' (ffff8880a4152da0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (ffff8880a416f6a0): fill_kobj_path: path = '/devices/virtual/block/loop4' base_sock_release(ffff8880330b41c0) sk=ffff88805b0f49c0 kobject: 'loop2' (ffff8880a411a4a0): kobject_uevent_env base_sock_release(ffff888094703480) sk=ffff88805a6e1480 XFS (loop3): barrier option is deprecated, ignoring. kobject: 'loop2' (ffff8880a411a4a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a42125e0): kobject_uevent_env kobject: 'loop5' (ffff8880a42125e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (ffff8880a40c2420): kobject_uevent_env kobject: 'loop1' (ffff8880a40c2420): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (ffff8880a411a4a0): kobject_uevent_env kobject: 'loop2' (ffff8880a411a4a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (ffff8880a416f6a0): kobject_uevent_env kobject: 'loop4' (ffff8880a416f6a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a42125e0): kobject_uevent_env kobject: 'loop5' (ffff8880a42125e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (ffff8880a416f6a0): kobject_uevent_env kobject: 'loop4' (ffff8880a416f6a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a42125e0): kobject_uevent_env kobject: 'loop5' (ffff8880a42125e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (ffff8880a416f6a0): kobject_uevent_env kobject: 'loop4' (ffff8880a416f6a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a42125e0): kobject_uevent_env kobject: 'loop5' (ffff8880a42125e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (ffff8880a416f6a0): kobject_uevent_env kobject: 'loop4' (ffff8880a416f6a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a42125e0): kobject_uevent_env kobject: 'loop5' (ffff8880a42125e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (ffff8880a4152da0): kobject_uevent_env kobject: 'loop3' (ffff8880a4152da0): fill_kobj_path: path = '/devices/virtual/block/loop3' XFS (loop3): Invalid superblock magic number kobject: 'loop0' (ffff888063f926a0): kobject_uevent_env kobject: 'loop3' (ffff8880a4152da0): kobject_uevent_env kobject: 'loop3' (ffff8880a4152da0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (ffff888063f926a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (ffff8880a40c2420): kobject_uevent_env kobject: 'loop1' (ffff8880a40c2420): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (ffff8880a4152da0): kobject_uevent_env kobject: 'loop3' (ffff8880a4152da0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (ffff8880a416f6a0): kobject_uevent_env kobject: 'loop4' (ffff8880a416f6a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (ffff888063f926a0): kobject_uevent_env kobject: 'loop0' (ffff888063f926a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (ffff8880a42125e0): kobject_uevent_env kobject: 'loop5' (ffff8880a42125e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (ffff8880a411a4a0): kobject_uevent_env kobject: 'loop2' (ffff8880a411a4a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (ffff8880a416f6a0): kobject_uevent_env kobject: 'loop4' (ffff8880a416f6a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a42125e0): kobject_uevent_env kobject: 'loop5' (ffff8880a42125e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (ffff8880a411a4a0): kobject_uevent_env kobject: 'loop2' (ffff8880a411a4a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (ffff8880a4152da0): kobject_uevent_env kobject: 'loop3' (ffff8880a4152da0): fill_kobj_path: path = '/devices/virtual/block/loop3' audit: type=1800 audit(2407.190:386): pid=22607 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="collect_data" cause="failed(directio)" comm="syz-executor.3" name="file0" dev="sda1" ino=17848 res=0 kobject: 'loop4' (ffff8880a416f6a0): kobject_uevent_env kobject: 'loop4' (ffff8880a416f6a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (ffff8880a411a4a0): kobject_uevent_env kobject: 'loop2' (ffff8880a411a4a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a42125e0): kobject_uevent_env kobject: 'loop5' (ffff8880a42125e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (ffff888063f926a0): kobject_uevent_env kobject: 'loop0' (ffff888063f926a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (ffff8880a4152da0): kobject_uevent_env kobject: 'loop3' (ffff8880a4152da0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (ffff8880a40c2420): kobject_uevent_env kobject: 'loop1' (ffff8880a40c2420): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (ffff8880a42125e0): kobject_uevent_env kobject: 'loop5' (ffff8880a42125e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (ffff8880a411a4a0): kobject_uevent_env kobject: 'loop2' (ffff8880a411a4a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (ffff8880a416f6a0): kobject_uevent_env kobject: 'loop4' (ffff8880a416f6a0): fill_kobj_path: path = '/devices/virtual/block/loop4' syz-executor.1: page allocation failure: order:4, mode:0x142c0c2(GFP_HIGHUSER|__GFP_COMP|__GFP_ZERO), nodemask=0 kobject: 'loop0' (ffff888063f926a0): kobject_uevent_env syz-executor.1 cpuset=syz1 mems_allowed=0-1 CPU: 1 PID: 22635 Comm: syz-executor.1 Not tainted 4.14.158-syzkaller #0 kobject: 'loop0' (ffff888063f926a0): fill_kobj_path: path = '/devices/virtual/block/loop0' Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x142/0x197 lib/dump_stack.c:58 warn_alloc.cold+0x96/0x1af mm/page_alloc.c:3248 kobject: 'loop4' (ffff8880a416f6a0): kobject_uevent_env kobject: 'loop4' (ffff8880a416f6a0): fill_kobj_path: path = '/devices/virtual/block/loop4' __alloc_pages_slowpath+0x23c6/0x2930 mm/page_alloc.c:4095 kobject: 'loop2' (ffff8880a411a4a0): kobject_uevent_env __alloc_pages_nodemask+0x62c/0x7a0 mm/page_alloc.c:4198 alloc_pages_current+0xec/0x1e0 mm/mempolicy.c:2113 alloc_pages include/linux/gfp.h:520 [inline] ion_page_pool_alloc_pages drivers/staging/android/ion/ion_page_pool.c:30 [inline] ion_page_pool_alloc+0x11f/0x1c0 drivers/staging/android/ion/ion_page_pool.c:89 kobject: 'loop2' (ffff8880a411a4a0): fill_kobj_path: path = '/devices/virtual/block/loop2' alloc_buffer_page drivers/staging/android/ion/ion_system_heap.c:75 [inline] alloc_largest_available drivers/staging/android/ion/ion_system_heap.c:115 [inline] ion_system_heap_allocate+0x138/0x910 drivers/staging/android/ion/ion_system_heap.c:146 kobject: 'loop4' (ffff8880a416f6a0): kobject_uevent_env ion_buffer_create drivers/staging/android/ion/ion.c:94 [inline] ion_alloc+0x222/0x860 drivers/staging/android/ion/ion.c:425 kobject: 'loop4' (ffff8880a416f6a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (ffff888063f926a0): kobject_uevent_env ion_ioctl+0x105/0x217 drivers/staging/android/ion/ion-ioctl.c:87 kobject: 'loop0' (ffff888063f926a0): fill_kobj_path: path = '/devices/virtual/block/loop0' vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a909 RSP: 002b:00007fd4d76a8c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a909 RDX: 00000000200001c0 RSI: 00000000c0184900 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd4d76a96d4 R13: 00000000004c39d9 R14: 00000000004d8ee8 R15: 00000000ffffffff warn_alloc_show_mem: 1 callbacks suppressed Mem-Info: kobject: 'loop3' (ffff8880a4152da0): kobject_uevent_env kobject: 'loop3' (ffff8880a4152da0): fill_kobj_path: path = '/devices/virtual/block/loop3' active_anon:279890 inactive_anon:194 isolated_anon:0 active_file:1632 inactive_file:5401 isolated_file:0 unevictable:0 dirty:307 writeback:0 unstable:0 slab_reclaimable:14145 slab_unreclaimable:115109 mapped:57444 shmem:379 pagetables:7879 bounce:0 free:933776 free_pcp:184 free_cma:0 Node 0 active_anon:1119176kB inactive_anon:776kB active_file:88kB inactive_file:672kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:209176kB dirty:376kB writeback:0kB shmem:1516kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 632832kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no Node 0 DMA free:10504kB min:216kB low:268kB high:320kB active_anon:2048kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 2569 2569 2569 2569 Node 0 DMA32 free:207016kB min:36380kB low:45472kB high:54564kB active_anon:1117128kB inactive_anon:776kB active_file:88kB inactive_file:672kB unevictable:0kB writepending:376kB present:3129332kB managed:2634384kB mlocked:0kB kernel_stack:15840kB pagetables:31452kB bounce:0kB free_pcp:844kB local_pcp:140kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 Node 0 Normal free:0kB min:0kB low:0kB high:0kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:0kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 Node 0 DMA: 6*4kB (UE) 8*8kB (UE) 7*16kB (UE) 6*32kB (UE) 2*64kB (UE) 6*128kB (UE) 6*256kB (UE) 3*512kB (UE) 2*1024kB (UE) 2*2048kB (UE) 0*4096kB = 10504kB Node 0 DMA32: 7535*4kB (UME) 5142*8kB (UME) 3554*16kB (UME) 2385*32kB (UM) 13*64kB (U) 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB (M) 0*4096kB = 207340kB Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 7419 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 335858 pages reserved 0 pages cma reserved kobject: 'loop1' (ffff8880a40c2420): kobject_uevent_env kobject: 'loop1' (ffff8880a40c2420): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (ffff8880a416f6a0): kobject_uevent_env kobject: 'loop4' (ffff8880a416f6a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a42125e0): kobject_uevent_env kobject: 'loop5' (ffff8880a42125e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (ffff888063f926a0): kobject_uevent_env kobject: 'loop0' (ffff888063f926a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (ffff8880a411a4a0): kobject_uevent_env kobject: 'loop2' (ffff8880a411a4a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (ffff888063f926a0): kobject_uevent_env kobject: 'loop0' (ffff888063f926a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (ffff8880a42125e0): kobject_uevent_env kobject: 'loop5' (ffff8880a42125e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (ffff888063f926a0): kobject_uevent_env kobject: 'loop0' (ffff888063f926a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (ffff8880a411a4a0): kobject_uevent_env kobject: 'loop2' (ffff8880a411a4a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (ffff8880a40c2420): kobject_uevent_env kobject: 'loop1' (ffff8880a40c2420): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (ffff8880a4152da0): kobject_uevent_env kobject: 'loop3' (ffff8880a4152da0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (ffff8880a416f6a0): kobject_uevent_env kobject: 'loop4' (ffff8880a416f6a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (ffff8880a411a4a0): kobject_uevent_env kobject: 'loop2' (ffff8880a411a4a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (ffff888063f926a0): kobject_uevent_env kobject: 'loop0' (ffff888063f926a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (ffff8880a42125e0): kobject_uevent_env kobject: 'loop5' (ffff8880a42125e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop5' (ffff8880a42125e0): kobject_uevent_env kobject: 'loop5' (ffff8880a42125e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (ffff8880a4152da0): kobject_uevent_env kobject: 'loop3' (ffff8880a4152da0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (ffff8880a416f6a0): kobject_uevent_env kobject: 'loop4' (ffff8880a416f6a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (ffff8880a411a4a0): kobject_uevent_env kobject: 'loop2' (ffff8880a411a4a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (ffff8880a40c2420): kobject_uevent_env kobject: 'loop1' (ffff8880a40c2420): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (ffff8880a42125e0): kobject_uevent_env kobject: 'loop5' (ffff8880a42125e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (ffff8880a411a4a0): kobject_uevent_env kobject: 'loop2' (ffff8880a411a4a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (ffff888063f926a0): kobject_uevent_env kobject: 'loop0' (ffff888063f926a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (ffff8880a416f6a0): kobject_uevent_env kobject: 'loop4' (ffff8880a416f6a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (ffff8880a411a4a0): kobject_uevent_env kobject: 'loop2' (ffff8880a411a4a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (ffff8880a416f6a0): kobject_uevent_env kobject: 'loop4' (ffff8880a416f6a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (ffff888063f926a0): kobject_uevent_env kobject: 'loop0' (ffff888063f926a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (ffff8880a411a4a0): kobject_uevent_env kobject: 'loop2' (ffff8880a411a4a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (ffff8880a416f6a0): kobject_uevent_env kobject: 'loop4' (ffff8880a416f6a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (ffff8880a40c2420): kobject_uevent_env kobject: 'loop1' (ffff8880a40c2420): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (ffff8880a4152da0): kobject_uevent_env kobject: 'loop3' (ffff8880a4152da0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (ffff8880a42125e0): kobject_uevent_env kobject: 'loop5' (ffff8880a42125e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (ffff8880a416f6a0): kobject_uevent_env kobject: 'loop4' (ffff8880a416f6a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop4' (ffff8880a416f6a0): kobject_uevent_env kobject: 'loop4' (ffff8880a416f6a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a42125e0): kobject_uevent_env kobject: 'loop5' (ffff8880a42125e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (ffff8880a411a4a0): kobject_uevent_env kobject: 'loop2' (ffff8880a411a4a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (ffff888063f926a0): kobject_uevent_env kobject: 'loop0' (ffff888063f926a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (ffff8880a42125e0): kobject_uevent_env kobject: 'loop5' (ffff8880a42125e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (ffff8880a411a4a0): kobject_uevent_env kobject: 'loop2' (ffff8880a411a4a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (ffff8880a40c2420): kobject_uevent_env kobject: 'loop1' (ffff8880a40c2420): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (ffff888063f926a0): kobject_uevent_env kobject: 'loop0' (ffff888063f926a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (ffff8880a42125e0): kobject_uevent_env kobject: 'loop5' (ffff8880a42125e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (ffff8880a4152da0): kobject_uevent_env kobject: 'loop3' (ffff8880a4152da0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (ffff8880a416f6a0): kobject_uevent_env kobject: 'loop4' (ffff8880a416f6a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (ffff888063f926a0): kobject_uevent_env kobject: 'loop0' (ffff888063f926a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (ffff8880a411a4a0): kobject_uevent_env kobject: 'loop2' (ffff8880a411a4a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a42125e0): kobject_uevent_env kobject: 'loop5' (ffff8880a42125e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (ffff8880a40c2420): kobject_uevent_env kobject: 'loop1' (ffff8880a40c2420): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (ffff8880a416f6a0): kobject_uevent_env kobject: 'loop4' (ffff8880a416f6a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (ffff8880a411a4a0): kobject_uevent_env kobject: 'loop2' (ffff8880a411a4a0): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (ffff888063f926a0): kobject_uevent_env kobject: 'loop0' (ffff888063f926a0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (ffff8880a4152da0): kobject_uevent_env kobject: 'loop3' (ffff8880a4152da0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (ffff8880a416f6a0): kobject_uevent_env kobject: 'loop4' (ffff8880a416f6a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a42125e0): kobject_uevent_env kobject: 'loop4' (ffff8880a416f6a0): kobject_uevent_env kobject: 'loop4' (ffff8880a416f6a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a42125e0): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (ffff8880a416f6a0): kobject_uevent_env kobject: 'loop4' (ffff8880a416f6a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (ffff8880a411a4a0): kobject_uevent_env