On Thu, May 10, 2018 at 7:57 AM, syzbot <syzbot+63833431f68be871fb95@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote: > Hello, > > syzbot found the following crash on: > > HEAD commit: 036db8bd9637 Merge branch 'for-4.17-fixes' of git://git.ke.. > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=146dab5b800000 > kernel config: https://syzkaller.appspot.com/x/.config?x=31f4b3733894ef79 > dashboard link: https://syzkaller.appspot.com/bug?extid=63833431f68be871fb95 > compiler: gcc (GCC) 8.0.1 20180413 (experimental) > > Unfortunately, I don't have any reproducer for this crash yet. > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > Reported-by: syzbot+63833431f68be871fb95@xxxxxxxxxxxxxxxxxxxxxxxxx Tetsuo thinks this is block layer problem. +block maintainers > ================================ > WARNING: inconsistent lock state > 4.17.0-rc4+ #39 Not tainted > -------------------------------- > inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. > syz-executor3/10560 [HC0[0]:SC1[1]:HE1:SE0] takes: > EXT4-fs (sda1): re-mounted. Opts: minixdf, > 000000001180cb72 (fs_reclaim){+.?.}, at: fs_reclaim_acquire.part.82+0x0/0x30 > mm/page_alloc.c:463 > {SOFTIRQ-ON-W} state was registered at: > lock_acquire+0x1dc/0x520 kernel/locking/lockdep.c:3920 > fs_reclaim_acquire.part.82+0x24/0x30 mm/page_alloc.c:3739 > fs_reclaim_acquire+0x14/0x20 mm/page_alloc.c:3740 > slab_pre_alloc_hook mm/slab.h:418 [inline] > slab_alloc_node mm/slab.c:3299 [inline] > kmem_cache_alloc_node_trace+0x39/0x770 mm/slab.c:3661 > kmalloc_node include/linux/slab.h:550 [inline] > kzalloc_node include/linux/slab.h:712 [inline] > alloc_worker+0xbd/0x2e0 kernel/workqueue.c:1704 > init_rescuer.part.25+0x1f/0x190 kernel/workqueue.c:4000 > init_rescuer kernel/workqueue.c:3997 [inline] > workqueue_init+0x51f/0x7d0 kernel/workqueue.c:5732 > kernel_init_freeable+0x2ad/0x58e init/main.c:1115 > kernel_init+0x11/0x1b3 init/main.c:1053 > ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:412 > irq event stamp: 8616 > hardirqs last enabled at (8616): [<ffffffff876ef414>] > __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] > hardirqs last enabled at (8616): [<ffffffff876ef414>] > _raw_spin_unlock_irqrestore+0x74/0xc0 kernel/locking/spinlock.c:184 > hardirqs last disabled at (8615): [<ffffffff876ef4d4>] > __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] > hardirqs last disabled at (8615): [<ffffffff876ef4d4>] > _raw_spin_lock_irqsave+0x74/0xc0 kernel/locking/spinlock.c:152 > softirqs last enabled at (7446): [<ffffffff87a00778>] > __do_softirq+0x778/0xaf5 kernel/softirq.c:311 > softirqs last disabled at (8601): [<ffffffff81476281>] invoke_softirq > kernel/softirq.c:365 [inline] > softirqs last disabled at (8601): [<ffffffff81476281>] irq_exit+0x1d1/0x200 > kernel/softirq.c:405 > > other info that might help us debug this: > Possible unsafe locking scenario: > > CPU0 > ---- > lock(fs_reclaim); > <Interrupt> > lock(fs_reclaim); > > *** DEADLOCK *** > > 2 locks held by syz-executor3/10560: > #0: 0000000099a775e3 (&(ptlock_ptr(page))->rlock#2){+.+.}, at: spin_lock > include/linux/spinlock.h:310 [inline] > #0: 0000000099a775e3 (&(ptlock_ptr(page))->rlock#2){+.+.}, at: > zap_pte_range mm/memory.c:1298 [inline] > #0: 0000000099a775e3 (&(ptlock_ptr(page))->rlock#2){+.+.}, at: > zap_pmd_range mm/memory.c:1441 [inline] > #0: 0000000099a775e3 (&(ptlock_ptr(page))->rlock#2){+.+.}, at: > zap_pud_range mm/memory.c:1470 [inline] > #0: 0000000099a775e3 (&(ptlock_ptr(page))->rlock#2){+.+.}, at: > zap_p4d_range mm/memory.c:1491 [inline] > #0: 0000000099a775e3 (&(ptlock_ptr(page))->rlock#2){+.+.}, at: > unmap_page_range+0x99b/0x2200 mm/memory.c:1512 > #1: 00000000bbb25b9d (rcu_callback){....}, at: __rcu_reclaim > kernel/rcu/rcu.h:168 [inline] > #1: 00000000bbb25b9d (rcu_callback){....}, at: rcu_do_batch > kernel/rcu/tree.c:2675 [inline] > #1: 00000000bbb25b9d (rcu_callback){....}, at: invoke_rcu_callbacks > kernel/rcu/tree.c:2930 [inline] > #1: 00000000bbb25b9d (rcu_callback){....}, at: __rcu_process_callbacks > kernel/rcu/tree.c:2897 [inline] > #1: 00000000bbb25b9d (rcu_callback){....}, at: > rcu_process_callbacks+0xa2c/0x15f0 kernel/rcu/tree.c:2914 > > stack backtrace: > CPU: 0 PID: 10560 Comm: syz-executor3 Not tainted 4.17.0-rc4+ #39 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS > Google 01/01/2011 > Call Trace: > <IRQ> > __dump_stack lib/dump_stack.c:77 [inline] > dump_stack+0x1b9/0x294 lib/dump_stack.c:113 > print_usage_bug.cold.59+0x320/0x41a kernel/locking/lockdep.c:2542 > valid_state kernel/locking/lockdep.c:2555 [inline] > mark_lock_irq kernel/locking/lockdep.c:2749 [inline] > mark_lock+0x1034/0x19e0 kernel/locking/lockdep.c:3147 > mark_irqflags kernel/locking/lockdep.c:3025 [inline] > __lock_acquire+0x1622/0x5140 kernel/locking/lockdep.c:3388 > lock_acquire+0x1dc/0x520 kernel/locking/lockdep.c:3920 > fs_reclaim_acquire.part.82+0x24/0x30 mm/page_alloc.c:3739 > fs_reclaim_acquire+0x14/0x20 mm/page_alloc.c:3740 > slab_pre_alloc_hook mm/slab.h:418 [inline] > slab_alloc mm/slab.c:3378 [inline] > kmem_cache_alloc_trace+0x2d/0x780 mm/slab.c:3618 > kmalloc include/linux/slab.h:512 [inline] > kzalloc include/linux/slab.h:701 [inline] > kobject_uevent_env+0x20f/0xea0 lib/kobject_uevent.c:446 > kobject_uevent+0x1f/0x30 lib/kobject_uevent.c:568 > kobject_cleanup lib/kobject.c:630 [inline] > kobject_release lib/kobject.c:672 [inline] > kref_put include/linux/kref.h:70 [inline] > kobject_put+0x1fb/0x280 lib/kobject.c:689 > put_device+0x20/0x30 drivers/base/core.c:1940 > delete_partition_rcu_cb+0x147/0x1b0 block/partition-generic.c:255 > __rcu_reclaim kernel/rcu/rcu.h:178 [inline] > rcu_do_batch kernel/rcu/tree.c:2675 [inline] > invoke_rcu_callbacks kernel/rcu/tree.c:2930 [inline] > __rcu_process_callbacks kernel/rcu/tree.c:2897 [inline] > rcu_process_callbacks+0x941/0x15f0 kernel/rcu/tree.c:2914 > __do_softirq+0x2e0/0xaf5 kernel/softirq.c:285 > invoke_softirq kernel/softirq.c:365 [inline] > irq_exit+0x1d1/0x200 kernel/softirq.c:405 > exiting_irq arch/x86/include/asm/apic.h:525 [inline] > smp_apic_timer_interrupt+0x17e/0x710 arch/x86/kernel/apic/apic.c:1052 > apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:863 > </IRQ> > RIP: 0010:constant_test_bit arch/x86/include/asm/bitops.h:328 [inline] > RIP: 0010:PageCompound include/linux/page-flags.h:156 [inline] > RIP: 0010:page_mapcount include/linux/mm.h:599 [inline] > RIP: 0010:zap_pte_range mm/memory.c:1338 [inline] > RIP: 0010:zap_pmd_range mm/memory.c:1441 [inline] > RIP: 0010:zap_pud_range mm/memory.c:1470 [inline] > RIP: 0010:zap_p4d_range mm/memory.c:1491 [inline] > RIP: 0010:unmap_page_range+0xf81/0x2200 mm/memory.c:1512 > RSP: 0018:ffff8801b1b37020 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 > RAX: 1ffffd4000c689b0 RBX: ffff8801c00f83b0 RCX: ffffffff81a70cc7 > RDX: 0000000000000000 RSI: ffffffff81a70cd5 RDI: 0000000000000007 > RBP: ffff8801b1b374b8 R08: ffff8801c7d8a0c0 R09: ffffed003b5c46c2 > R10: 0000000000000003 R11: 0000000000000001 R12: ffffea0006344d80 > R13: 00007fdf01277000 R14: dffffc0000000000 R15: 0000000000000000 > unmap_single_vma+0x1a0/0x310 mm/memory.c:1557 > unmap_vmas+0x120/0x1f0 mm/memory.c:1587 > exit_mmap+0x265/0x570 mm/mmap.c:3047 > __mmput kernel/fork.c:961 [inline] > mmput+0x251/0x610 kernel/fork.c:982 > exit_mm kernel/exit.c:544 [inline] > do_exit+0xe98/0x2730 kernel/exit.c:852 > do_group_exit+0x16f/0x430 kernel/exit.c:968 > __do_sys_exit_group kernel/exit.c:979 [inline] > __se_sys_exit_group kernel/exit.c:977 [inline] > __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:977 > do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 > entry_SYSCALL_64_after_hwframe+0x49/0xbe > RIP: 0033:0x455979 > RSP: 002b:00007ffd9fd2e388 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 > RAX: ffffffffffffffda RBX: 0000000000000079 RCX: 0000000000455979 > RDX: 0000000000000000 RSI: 0000000000730a80 RDI: 0000000000000000 > RBP: 0000000000000013 R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000013 > R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000001380 > BUG: sleeping function called from invalid context at mm/slab.h:421 > in_atomic(): 1, irqs_disabled(): 0, pid: 10560, name: syz-executor3 > INFO: lockdep is turned off. > CPU: 0 PID: 10560 Comm: syz-executor3 Not tainted 4.17.0-rc4+ #39 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS > Google 01/01/2011 > Call Trace: > <IRQ> > __dump_stack lib/dump_stack.c:77 [inline] > dump_stack+0x1b9/0x294 lib/dump_stack.c:113 > FAULT_INJECTION: forcing a failure. > name fail_page_alloc, interval 1, probability 0, space 0, times 0 > ___might_sleep.cold.87+0x11f/0x13a kernel/sched/core.c:6188 > __might_sleep+0x95/0x190 kernel/sched/core.c:6141 > slab_pre_alloc_hook mm/slab.h:421 [inline] > slab_alloc mm/slab.c:3378 [inline] > kmem_cache_alloc_trace+0x2bc/0x780 mm/slab.c:3618 > kmalloc include/linux/slab.h:512 [inline] > kzalloc include/linux/slab.h:701 [inline] > kobject_uevent_env+0x20f/0xea0 lib/kobject_uevent.c:446 > kobject_uevent+0x1f/0x30 lib/kobject_uevent.c:568 > kobject_cleanup lib/kobject.c:630 [inline] > kobject_release lib/kobject.c:672 [inline] > kref_put include/linux/kref.h:70 [inline] > kobject_put+0x1fb/0x280 lib/kobject.c:689 > put_device+0x20/0x30 drivers/base/core.c:1940 > delete_partition_rcu_cb+0x147/0x1b0 block/partition-generic.c:255 > __rcu_reclaim kernel/rcu/rcu.h:178 [inline] > rcu_do_batch kernel/rcu/tree.c:2675 [inline] > invoke_rcu_callbacks kernel/rcu/tree.c:2930 [inline] > __rcu_process_callbacks kernel/rcu/tree.c:2897 [inline] > rcu_process_callbacks+0x941/0x15f0 kernel/rcu/tree.c:2914 > __do_softirq+0x2e0/0xaf5 kernel/softirq.c:285 > invoke_softirq kernel/softirq.c:365 [inline] > irq_exit+0x1d1/0x200 kernel/softirq.c:405 > exiting_irq arch/x86/include/asm/apic.h:525 [inline] > smp_apic_timer_interrupt+0x17e/0x710 arch/x86/kernel/apic/apic.c:1052 > apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:863 > </IRQ> > RIP: 0010:constant_test_bit arch/x86/include/asm/bitops.h:328 [inline] > RIP: 0010:PageCompound include/linux/page-flags.h:156 [inline] > RIP: 0010:page_mapcount include/linux/mm.h:599 [inline] > RIP: 0010:zap_pte_range mm/memory.c:1338 [inline] > RIP: 0010:zap_pmd_range mm/memory.c:1441 [inline] > RIP: 0010:zap_pud_range mm/memory.c:1470 [inline] > RIP: 0010:zap_p4d_range mm/memory.c:1491 [inline] > RIP: 0010:unmap_page_range+0xf81/0x2200 mm/memory.c:1512 > RSP: 0018:ffff8801b1b37020 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 > RAX: 1ffffd4000c689b0 RBX: ffff8801c00f83b0 RCX: ffffffff81a70cc7 > RDX: 0000000000000000 RSI: ffffffff81a70cd5 RDI: 0000000000000007 > RBP: ffff8801b1b374b8 R08: ffff8801c7d8a0c0 R09: ffffed003b5c46c2 > R10: 0000000000000003 R11: 0000000000000001 R12: ffffea0006344d80 > R13: 00007fdf01277000 R14: dffffc0000000000 R15: 0000000000000000 > unmap_single_vma+0x1a0/0x310 mm/memory.c:1557 > unmap_vmas+0x120/0x1f0 mm/memory.c:1587 > exit_mmap+0x265/0x570 mm/mmap.c:3047 > __mmput kernel/fork.c:961 [inline] > mmput+0x251/0x610 kernel/fork.c:982 > exit_mm kernel/exit.c:544 [inline] > do_exit+0xe98/0x2730 kernel/exit.c:852 > do_group_exit+0x16f/0x430 kernel/exit.c:968 > __do_sys_exit_group kernel/exit.c:979 [inline] > __se_sys_exit_group kernel/exit.c:977 [inline] > __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:977 > do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 > entry_SYSCALL_64_after_hwframe+0x49/0xbe > RIP: 0033:0x455979 > RSP: 002b:00007ffd9fd2e388 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 > RAX: ffffffffffffffda RBX: 0000000000000079 RCX: 0000000000455979 > RDX: 0000000000000000 RSI: 0000000000730a80 RDI: 0000000000000000 > RBP: 0000000000000013 R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000013 > R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000001380 > CPU: 1 PID: 10615 Comm: syz-executor6 Not tainted 4.17.0-rc4+ #39 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS > Google 01/01/2011 > Call Trace: > __dump_stack lib/dump_stack.c:77 [inline] > dump_stack+0x1b9/0x294 lib/dump_stack.c:113 > fail_dump lib/fault-inject.c:51 [inline] > should_fail.cold.4+0xa/0x1a lib/fault-inject.c:149 > should_fail_alloc_page mm/page_alloc.c:3082 [inline] > prepare_alloc_pages mm/page_alloc.c:4322 [inline] > __alloc_pages_nodemask+0x34e/0xd70 mm/page_alloc.c:4358 > __alloc_pages include/linux/gfp.h:456 [inline] > __alloc_pages_node include/linux/gfp.h:469 [inline] > kmem_getpages mm/slab.c:1411 [inline] > cache_grow_begin+0x72/0x6c0 mm/slab.c:2678 > cache_alloc_refill mm/slab.c:3045 [inline] > ____cache_alloc mm/slab.c:3127 [inline] > __do_cache_alloc mm/slab.c:3349 [inline] > slab_alloc mm/slab.c:3384 [inline] > kmem_cache_alloc+0x689/0x760 mm/slab.c:3552 > bdev_alloc_inode+0x1b/0x40 fs/block_dev.c:727 > alloc_inode+0x63/0x190 fs/inode.c:209 > iget5_locked+0x20e/0x570 fs/inode.c:1045 > bdget+0xb1/0x5c0 fs/block_dev.c:868 > blkpg_ioctl+0x31d/0xc40 block/ioctl.c:77 > blkdev_ioctl+0x1753/0x2020 block/ioctl.c:573 > block_ioctl+0xee/0x130 fs/block_dev.c:1877 > vfs_ioctl fs/ioctl.c:46 [inline] > file_ioctl fs/ioctl.c:500 [inline] > do_vfs_ioctl+0x1cf/0x16a0 fs/ioctl.c:684 > ksys_ioctl+0xa9/0xd0 fs/ioctl.c:701 > __do_sys_ioctl fs/ioctl.c:708 [inline] > __se_sys_ioctl fs/ioctl.c:706 [inline] > __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:706 > do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 > entry_SYSCALL_64_after_hwframe+0x49/0xbe > RIP: 0033:0x455979 > RSP: 002b:00007f35a9be2c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 > RAX: ffffffffffffffda RBX: 00007f35a9be36d4 RCX: 0000000000455979 > RDX: 0000000020000180 RSI: 0000000000001269 RDI: 0000000000000013 > RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000014 > R13: 00000000000001a8 R14: 00000000006f6860 R15: 0000000000000001 > FAULT_INJECTION: forcing a failure. > name fail_page_alloc, interval 1, probability 0, space 0, times 0 > CPU: 1 PID: 10662 Comm: syz-executor6 Tainted: G W > 4.17.0-rc4+ #39 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS > Google 01/01/2011 > Call Trace: > __dump_stack lib/dump_stack.c:77 [inline] > dump_stack+0x1b9/0x294 lib/dump_stack.c:113 > fail_dump lib/fault-inject.c:51 [inline] > should_fail.cold.4+0xa/0x1a lib/fault-inject.c:149 > should_fail_alloc_page mm/page_alloc.c:3082 [inline] > prepare_alloc_pages mm/page_alloc.c:4322 [inline] > __alloc_pages_nodemask+0x34e/0xd70 mm/page_alloc.c:4358 > __alloc_pages include/linux/gfp.h:456 [inline] > __alloc_pages_node include/linux/gfp.h:469 [inline] > kmem_getpages mm/slab.c:1411 [inline] > cache_grow_begin+0x72/0x6c0 mm/slab.c:2678 > cache_alloc_refill mm/slab.c:3045 [inline] > ____cache_alloc mm/slab.c:3127 [inline] > __do_cache_alloc mm/slab.c:3349 [inline] > slab_alloc mm/slab.c:3384 [inline] > kmem_cache_alloc_trace+0x6a5/0x780 mm/slab.c:3618 > kmalloc include/linux/slab.h:512 [inline] > kzalloc include/linux/slab.h:701 [inline] > kobject_uevent_env+0x20f/0xea0 lib/kobject_uevent.c:446 > kobject_uevent+0x1f/0x30 lib/kobject_uevent.c:568 > device_del+0x6c9/0xb70 drivers/base/core.c:2007 > delete_partition+0x21d/0x2a0 block/partition-generic.c:284 > blkpg_ioctl+0x3c5/0xc40 block/ioctl.c:93 > blkdev_ioctl+0x1753/0x2020 block/ioctl.c:573 > block_ioctl+0xee/0x130 fs/block_dev.c:1877 > vfs_ioctl fs/ioctl.c:46 [inline] > file_ioctl fs/ioctl.c:500 [inline] > do_vfs_ioctl+0x1cf/0x16a0 fs/ioctl.c:684 > ksys_ioctl+0xa9/0xd0 fs/ioctl.c:701 > __do_sys_ioctl fs/ioctl.c:708 [inline] > __se_sys_ioctl fs/ioctl.c:706 [inline] > __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:706 > do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 > entry_SYSCALL_64_after_hwframe+0x49/0xbe > RIP: 0033:0x455979 > RSP: 002b:00007f35a9be2c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 > RAX: ffffffffffffffda RBX: 00007f35a9be36d4 RCX: 0000000000455979 > RDX: 0000000020000180 RSI: 0000000000001269 RDI: 0000000000000013 > RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000014 > R13: 00000000000001a8 R14: 00000000006f6860 R15: 0000000000000002 > FAULT_INJECTION: forcing a failure. > name failslab, interval 1, probability 0, space 0, times 0 > CPU: 0 PID: 11012 Comm: syz-executor2 Tainted: G W > 4.17.0-rc4+ #39 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS > Google 01/01/2011 > Call Trace: > __dump_stack lib/dump_stack.c:77 [inline] > dump_stack+0x1b9/0x294 lib/dump_stack.c:113 > fail_dump lib/fault-inject.c:51 [inline] > should_fail.cold.4+0xa/0x1a lib/fault-inject.c:149 > __should_failslab+0x124/0x180 mm/failslab.c:32 > should_failslab+0x9/0x14 mm/slab_common.c:1522 > slab_pre_alloc_hook mm/slab.h:423 [inline] > slab_alloc mm/slab.c:3378 [inline] > kmem_cache_alloc_trace+0x2cb/0x780 mm/slab.c:3618 > kmalloc include/linux/slab.h:512 [inline] > kzalloc include/linux/slab.h:701 [inline] > alloc_pipe_info+0x16d/0x580 fs/pipe.c:633 > splice_direct_to_actor+0x6e7/0x8d0 fs/splice.c:920 > do_splice_direct+0x2cc/0x400 fs/splice.c:1061 > do_sendfile+0x60f/0xe00 fs/read_write.c:1440 > __do_sys_sendfile64 fs/read_write.c:1495 [inline] > __se_sys_sendfile64 fs/read_write.c:1487 [inline] > __x64_sys_sendfile64+0x155/0x240 fs/read_write.c:1487 > do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 > entry_SYSCALL_64_after_hwframe+0x49/0xbe > RIP: 0033:0x455979 > RSP: 002b:00007fb8be39dc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 > RAX: ffffffffffffffda RBX: 00007fb8be39e6d4 RCX: 0000000000455979 > RDX: 0000000020000080 RSI: 0000000000000014 RDI: 0000000000000014 > RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000008000000 R11: 0000000000000246 R12: 0000000000000015 > R13: 0000000000000514 R14: 00000000006fba80 R15: 0000000000000000 > FAULT_INJECTION: forcing a failure. > name fail_page_alloc, interval 1, probability 0, space 0, times 0 > CPU: 0 PID: 11055 Comm: syz-executor2 Tainted: G W > 4.17.0-rc4+ #39 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS > Google 01/01/2011 > Call Trace: > __dump_stack lib/dump_stack.c:77 [inline] > dump_stack+0x1b9/0x294 lib/dump_stack.c:113 > fail_dump lib/fault-inject.c:51 [inline] > should_fail.cold.4+0xa/0x1a lib/fault-inject.c:149 > should_fail_alloc_page mm/page_alloc.c:3082 [inline] > prepare_alloc_pages mm/page_alloc.c:4322 [inline] > __alloc_pages_nodemask+0x34e/0xd70 mm/page_alloc.c:4358 > __alloc_pages include/linux/gfp.h:456 [inline] > __alloc_pages_node include/linux/gfp.h:469 [inline] > kmem_getpages mm/slab.c:1411 [inline] > cache_grow_begin+0x72/0x6c0 mm/slab.c:2678 > cache_alloc_refill mm/slab.c:3045 [inline] > ____cache_alloc mm/slab.c:3127 [inline] > __do_cache_alloc mm/slab.c:3349 [inline] > slab_alloc mm/slab.c:3384 [inline] > kmem_cache_alloc_trace+0x6a5/0x780 mm/slab.c:3618 > kmalloc include/linux/slab.h:512 [inline] > kzalloc include/linux/slab.h:701 [inline] > alloc_pipe_info+0x16d/0x580 fs/pipe.c:633 > splice_direct_to_actor+0x6e7/0x8d0 fs/splice.c:920 > do_splice_direct+0x2cc/0x400 fs/splice.c:1061 > do_sendfile+0x60f/0xe00 fs/read_write.c:1440 > __do_sys_sendfile64 fs/read_write.c:1495 [inline] > __se_sys_sendfile64 fs/read_write.c:1487 [inline] > __x64_sys_sendfile64+0x155/0x240 fs/read_write.c:1487 > do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 > entry_SYSCALL_64_after_hwframe+0x49/0xbe > RIP: 0033:0x455979 > RSP: 002b:00007fb8be39dc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 > RAX: ffffffffffffffda RBX: 00007fb8be39e6d4 RCX: 0000000000455979 > RDX: 0000000020000080 RSI: 0000000000000014 RDI: 0000000000000014 > RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000008000000 R11: 0000000000000246 R12: 0000000000000015 > R13: 0000000000000514 R14: 00000000006fba80 R15: 0000000000000001 > FAULT_INJECTION: forcing a failure. > name failslab, interval 1, probability 0, space 0, times 0 > CPU: 0 PID: 11101 Comm: syz-executor2 Tainted: G W > 4.17.0-rc4+ #39 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS > Google 01/01/2011 > Call Trace: > __dump_stack lib/dump_stack.c:77 [inline] > dump_stack+0x1b9/0x294 lib/dump_stack.c:113 > fail_dump lib/fault-inject.c:51 [inline] > should_fail.cold.4+0xa/0x1a lib/fault-inject.c:149 > __should_failslab+0x124/0x180 mm/failslab.c:32 > should_failslab+0x9/0x14 mm/slab_common.c:1522 > slab_pre_alloc_hook mm/slab.h:423 [inline] > slab_alloc_node mm/slab.c:3299 [inline] > kmem_cache_alloc_node_trace+0x26f/0x770 mm/slab.c:3661 > __do_kmalloc_node mm/slab.c:3681 [inline] > __kmalloc_node+0x33/0x70 mm/slab.c:3689 > kmalloc_node include/linux/slab.h:554 [inline] > kvmalloc_node+0x6b/0x100 mm/util.c:421 > kvmalloc include/linux/mm.h:550 [inline] > kvmalloc_array include/linux/mm.h:566 [inline] > get_pages_array lib/iov_iter.c:1097 [inline] > pipe_get_pages_alloc lib/iov_iter.c:1123 [inline] > iov_iter_get_pages_alloc+0x7be/0x14e0 lib/iov_iter.c:1144 > default_file_splice_read+0x1c7/0xad0 fs/splice.c:390 > do_splice_to+0x12e/0x190 fs/splice.c:880 > splice_direct_to_actor+0x268/0x8d0 fs/splice.c:952 > do_splice_direct+0x2cc/0x400 fs/splice.c:1061 > do_sendfile+0x60f/0xe00 fs/read_write.c:1440 > __do_sys_sendfile64 fs/read_write.c:1495 [inline] > __se_sys_sendfile64 fs/read_write.c:1487 [inline] > __x64_sys_sendfile64+0x155/0x240 fs/read_write.c:1487 > do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 > entry_SYSCALL_64_after_hwframe+0x49/0xbe > RIP: 0033:0x455979 > RSP: 002b:00007fb8be39dc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 > RAX: ffffffffffffffda RBX: 00007fb8be39e6d4 RCX: 0000000000455979 > RDX: 0000000020000080 RSI: 0000000000000014 RDI: 0000000000000014 > RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000008000000 R11: 0000000000000246 R12: 0000000000000015 > R13: 0000000000000514 R14: 00000000006fba80 R15: 0000000000000002 > FAULT_INJECTION: forcing a failure. > name fail_page_alloc, interval 1, probability 0, space 0, times 0 > CPU: 0 PID: 11156 Comm: syz-executor2 Tainted: G W > 4.17.0-rc4+ #39 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS > Google 01/01/2011 > Call Trace: > __dump_stack lib/dump_stack.c:77 [inline] > dump_stack+0x1b9/0x294 lib/dump_stack.c:113 > fail_dump lib/fault-inject.c:51 [inline] > should_fail.cold.4+0xa/0x1a lib/fault-inject.c:149 > should_fail_alloc_page mm/page_alloc.c:3082 [inline] > prepare_alloc_pages mm/page_alloc.c:4322 [inline] > __alloc_pages_nodemask+0x34e/0xd70 mm/page_alloc.c:4358 > alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2093 > alloc_pages include/linux/gfp.h:492 [inline] > push_pipe+0x400/0x7a0 lib/iov_iter.c:515 > __pipe_get_pages lib/iov_iter.c:1022 [inline] > pipe_get_pages_alloc lib/iov_iter.c:1126 [inline] > iov_iter_get_pages_alloc+0x84a/0x14e0 lib/iov_iter.c:1144 > default_file_splice_read+0x1c7/0xad0 fs/splice.c:390 > do_splice_to+0x12e/0x190 fs/splice.c:880 > splice_direct_to_actor+0x268/0x8d0 fs/splice.c:952 > do_splice_direct+0x2cc/0x400 fs/splice.c:1061 > do_sendfile+0x60f/0xe00 fs/read_write.c:1440 > __do_sys_sendfile64 fs/read_write.c:1495 [inline] > __se_sys_sendfile64 fs/read_write.c:1487 [inline] > __x64_sys_sendfile64+0x155/0x240 fs/read_write.c:1487 > do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 > entry_SYSCALL_64_after_hwframe+0x49/0xbe > RIP: 0033:0x455979 > RSP: 002b:00007fb8be39dc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 > RAX: ffffffffffffffda RBX: 00007fb8be39e6d4 RCX: 0000000000455979 > RDX: 0000000020000080 RSI: 0000000000000014 RDI: 0000000000000014 > RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000008000000 R11: 0000000000000246 R12: 0000000000000015 > R13: 0000000000000514 R14: 00000000006fba80 R15: 0000000000000003 > FAULT_INJECTION: forcing a failure. > name fail_page_alloc, interval 1, probability 0, space 0, times 0 > CPU: 0 PID: 11181 Comm: syz-executor2 Tainted: G W > 4.17.0-rc4+ #39 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS > Google 01/01/2011 > Call Trace: > __dump_stack lib/dump_stack.c:77 [inline] > dump_stack+0x1b9/0x294 lib/dump_stack.c:113 > fail_dump lib/fault-inject.c:51 [inline] > should_fail.cold.4+0xa/0x1a lib/fault-inject.c:149 > should_fail_alloc_page mm/page_alloc.c:3082 [inline] > prepare_alloc_pages mm/page_alloc.c:4322 [inline] > __alloc_pages_nodemask+0x34e/0xd70 mm/page_alloc.c:4358 > alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2093 > alloc_pages include/linux/gfp.h:492 [inline] > push_pipe+0x400/0x7a0 lib/iov_iter.c:515 > __pipe_get_pages lib/iov_iter.c:1022 [inline] > pipe_get_pages_alloc lib/iov_iter.c:1126 [inline] > iov_iter_get_pages_alloc+0x84a/0x14e0 lib/iov_iter.c:1144 > default_file_splice_read+0x1c7/0xad0 fs/splice.c:390 > do_splice_to+0x12e/0x190 fs/splice.c:880 > splice_direct_to_actor+0x268/0x8d0 fs/splice.c:952 > do_splice_direct+0x2cc/0x400 fs/splice.c:1061 > do_sendfile+0x60f/0xe00 fs/read_write.c:1440 > __do_sys_sendfile64 fs/read_write.c:1495 [inline] > __se_sys_sendfile64 fs/read_write.c:1487 [inline] > __x64_sys_sendfile64+0x155/0x240 fs/read_write.c:1487 > do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 > entry_SYSCALL_64_after_hwframe+0x49/0xbe > RIP: 0033:0x455979 > RSP: 002b:00007fb8be39dc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 > RAX: ffffffffffffffda RBX: 00007fb8be39e6d4 RCX: 0000000000455979 > RDX: 0000000020000080 RSI: 0000000000000014 RDI: 0000000000000014 > RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000008000000 R11: 0000000000000246 R12: 0000000000000015 > R13: 0000000000000514 R14: 00000000006fba80 R15: 0000000000000004 > FAULT_INJECTION: forcing a failure. > name fail_page_alloc, interval 1, probability 0, space 0, times 0 > CPU: 0 PID: 11208 Comm: syz-executor2 Tainted: G W > 4.17.0-rc4+ #39 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS > Google 01/01/2011 > Call Trace: > __dump_stack lib/dump_stack.c:77 [inline] > dump_stack+0x1b9/0x294 lib/dump_stack.c:113 > fail_dump lib/fault-inject.c:51 [inline] > should_fail.cold.4+0xa/0x1a lib/fault-inject.c:149 > should_fail_alloc_page mm/page_alloc.c:3082 [inline] > prepare_alloc_pages mm/page_alloc.c:4322 [inline] > __alloc_pages_nodemask+0x34e/0xd70 mm/page_alloc.c:4358 > alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2093 > alloc_pages include/linux/gfp.h:492 [inline] > push_pipe+0x400/0x7a0 lib/iov_iter.c:515 > __pipe_get_pages lib/iov_iter.c:1022 [inline] > pipe_get_pages_alloc lib/iov_iter.c:1126 [inline] > iov_iter_get_pages_alloc+0x84a/0x14e0 lib/iov_iter.c:1144 > default_file_splice_read+0x1c7/0xad0 fs/splice.c:390 > do_splice_to+0x12e/0x190 fs/splice.c:880 > splice_direct_to_actor+0x268/0x8d0 fs/splice.c:952 > do_splice_direct+0x2cc/0x400 fs/splice.c:1061 > do_sendfile+0x60f/0xe00 fs/read_write.c:1440 > __do_sys_sendfile64 fs/read_write.c:1495 [inline] > __se_sys_sendfile64 fs/read_write.c:1487 [inline] > __x64_sys_sendfile64+0x155/0x240 fs/read_write.c:1487 > do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 > entry_SYSCALL_64_after_hwframe+0x49/0xbe > RIP: 0033:0x455979 > RSP: 002b:00007fb8be39dc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 > RAX: ffffffffffffffda RBX: 00007fb8be39e6d4 RCX: 0000000000455979 > RDX: 0000000020000080 RSI: 0000000000000014 RDI: 0000000000000014 > RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000008000000 R11: 0000000000000246 R12: 0000000000000015 > R13: 0000000000000514 R14: 00000000006fba80 R15: 0000000000000005 > FAULT_INJECTION: forcing a failure. > name fail_page_alloc, interval 1, probability 0, space 0, times 0 > CPU: 0 PID: 11251 Comm: syz-executor2 Tainted: G W > 4.17.0-rc4+ #39 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS > Google 01/01/2011 > Call Trace: > __dump_stack lib/dump_stack.c:77 [inline] > dump_stack+0x1b9/0x294 lib/dump_stack.c:113 > fail_dump lib/fault-inject.c:51 [inline] > should_fail.cold.4+0xa/0x1a lib/fault-inject.c:149 > should_fail_alloc_page mm/page_alloc.c:3082 [inline] > prepare_alloc_pages mm/page_alloc.c:4322 [inline] > __alloc_pages_nodemask+0x34e/0xd70 mm/page_alloc.c:4358 > alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2093 > alloc_pages include/linux/gfp.h:492 [inline] > push_pipe+0x400/0x7a0 lib/iov_iter.c:515 > __pipe_get_pages lib/iov_iter.c:1022 [inline] > pipe_get_pages_alloc lib/iov_iter.c:1126 [inline] > iov_iter_get_pages_alloc+0x84a/0x14e0 lib/iov_iter.c:1144 > default_file_splice_read+0x1c7/0xad0 fs/splice.c:390 > do_splice_to+0x12e/0x190 fs/splice.c:880 > splice_direct_to_actor+0x268/0x8d0 fs/splice.c:952 > do_splice_direct+0x2cc/0x400 fs/splice.c:1061 > do_sendfile+0x60f/0xe00 fs/read_write.c:1440 > __do_sys_sendfile64 fs/read_write.c:1495 [inline] > __se_sys_sendfile64 fs/read_write.c:1487 [inline] > __x64_sys_sendfile64+0x155/0x240 fs/read_write.c:1487 > do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 > entry_SYSCALL_64_after_hwframe+0x49/0xbe > RIP: 0033:0x455979 > RSP: 002b:00007fb8be39dc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 > RAX: ffffffffffffffda RBX: 00007fb8be39e6d4 RCX: 0000000000455979 > RDX: 0000000020000080 RSI: 0000000000000014 RDI: 0000000000000014 > RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000008000000 R11: 0000000000000246 R12: 0000000000000015 > R13: 0000000000000514 R14: 00000000006fba80 R15: 0000000000000006 > FAULT_INJECTION: forcing a failure. > name fail_page_alloc, interval 1, probability 0, space 0, times 0 > CPU: 1 PID: 11321 Comm: syz-executor2 Tainted: G W > 4.17.0-rc4+ #39 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS > Google 01/01/2011 > Call Trace: > __dump_stack lib/dump_stack.c:77 [inline] > dump_stack+0x1b9/0x294 lib/dump_stack.c:113 > fail_dump lib/fault-inject.c:51 [inline] > should_fail.cold.4+0xa/0x1a lib/fault-inject.c:149 > should_fail_alloc_page mm/page_alloc.c:3082 [inline] > prepare_alloc_pages mm/page_alloc.c:4322 [inline] > __alloc_pages_nodemask+0x34e/0xd70 mm/page_alloc.c:4358 > alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2093 > alloc_pages include/linux/gfp.h:492 [inline] > push_pipe+0x400/0x7a0 lib/iov_iter.c:515 > __pipe_get_pages lib/iov_iter.c:1022 [inline] > pipe_get_pages_alloc lib/iov_iter.c:1126 [inline] > iov_iter_get_pages_alloc+0x84a/0x14e0 lib/iov_iter.c:1144 > default_file_splice_read+0x1c7/0xad0 fs/splice.c:390 > do_splice_to+0x12e/0x190 fs/splice.c:880 > splice_direct_to_actor+0x268/0x8d0 fs/splice.c:952 > do_splice_direct+0x2cc/0x400 fs/splice.c:1061 > do_sendfile+0x60f/0xe00 fs/read_write.c:1440 > __do_sys_sendfile64 fs/read_write.c:1495 [inline] > __se_sys_sendfile64 fs/read_write.c:1487 [inline] > __x64_sys_sendfile64+0x155/0x240 fs/read_write.c:1487 > do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 > entry_SYSCALL_64_after_hwframe+0x49/0xbe > RIP: 0033:0x455979 > RSP: 002b:00007fb8be39dc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 > RAX: ffffffffffffffda RBX: 00007fb8be39e6d4 RCX: 0000000000455979 > RDX: 0000000020000080 RSI: 0000000000000014 RDI: 0000000000000014 > RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000008000000 R11: 0000000000000246 R12: 0000000000000015 > R13: 0000000000000514 R14: 00000000006fba80 R15: 0000000000000007 > FAULT_INJECTION: forcing a failure. > name fail_page_alloc, interval 1, probability 0, space 0, times 0 > CPU: 1 PID: 11367 Comm: syz-executor2 Tainted: G W > 4.17.0-rc4+ #39 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS > Google 01/01/2011 > Call Trace: > __dump_stack lib/dump_stack.c:77 [inline] > dump_stack+0x1b9/0x294 lib/dump_stack.c:113 > fail_dump lib/fault-inject.c:51 [inline] > should_fail.cold.4+0xa/0x1a lib/fault-inject.c:149 > should_fail_alloc_page mm/page_alloc.c:3082 [inline] > prepare_alloc_pages mm/page_alloc.c:4322 [inline] > __alloc_pages_nodemask+0x34e/0xd70 mm/page_alloc.c:4358 > alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2093 > alloc_pages include/linux/gfp.h:492 [inline] > push_pipe+0x400/0x7a0 lib/iov_iter.c:515 > __pipe_get_pages lib/iov_iter.c:1022 [inline] > pipe_get_pages_alloc lib/iov_iter.c:1126 [inline] > iov_iter_get_pages_alloc+0x84a/0x14e0 lib/iov_iter.c:1144 > default_file_splice_read+0x1c7/0xad0 fs/splice.c:390 > do_splice_to+0x12e/0x190 fs/splice.c:880 > splice_direct_to_actor+0x268/0x8d0 fs/splice.c:952 > do_splice_direct+0x2cc/0x400 fs/splice.c:1061 > do_sendfile+0x60f/0xe00 fs/read_write.c:1440 > __do_sys_sendfile64 fs/read_write.c:1495 [inline] > __se_sys_sendfile64 fs/read_write.c:1487 [inline] > __x64_sys_sendfile64+0x155/0x240 fs/read_write.c:1487 > do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 > entry_SYSCALL_64_after_hwframe+0x49/0xbe > RIP: 0033:0x455979 > RSP: 002b:00007fb8be39dc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 > RAX: ffffffffffffffda RBX: 00007fb8be39e6d4 RCX: 0000000000455979 > RDX: 0000000020000080 RSI: 0000000000000014 RDI: 0000000000000014 > RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000008000000 R11: 0000000000000246 R12: 0000000000000015 > R13: 0000000000000514 R14: 00000000006fba80 R15: 0000000000000008 > > > --- > This bug is generated by a bot. It may contain errors. > See https://goo.gl/tpsmEJ for more information about syzbot. > syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. > > syzbot will keep track of this bug report. > If you forgot to add the Reported-by tag, once the fix for this bug is > merged > into any tree, please reply to this email with: > #syz fix: exact-commit-title > To mark this as a duplicate of another syzbot report, please reply with: > #syz dup: exact-subject-of-another-report > If it's a one-off invalid bug report, please reply with: > #syz invalid > Note: if the crash happens again, it will cause creation of a new bug > report. > Note: all commands must start from beginning of the line in the email body. > > -- > You received this message because you are subscribed to the Google Groups > "syzkaller-bugs" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to syzkaller-bugs+unsubscribe@xxxxxxxxxxxxxxxx. > To view this discussion on the web visit > https://groups.google.com/d/msgid/syzkaller-bugs/0000000000003b8d3a056bd3b073%40google.com. > For more options, visit https://groups.google.com/d/optout.
