RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f17a70c9000 RBP: 00007f17a71970d0 R08: 0000000000000001 R09: 0000000000000033 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f17a71ca4cc R13: 00007f17a70f22f0 R14: 00007f17a71ca4c8 R15: 0000000000000001 ====================================================== WARNING: possible circular locking dependency detected 4.14.260-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor768/8087 is trying to acquire lock: ("dio/%s"sb->s_id){+.+.}, at: [] flush_workqueue+0xcb/0x1310 kernel/workqueue.c:2622 but task is already holding lock: (&sb->s_type->i_mutex_key#17){+.+.}, at: [] inode_lock include/linux/fs.h:719 [inline] (&sb->s_type->i_mutex_key#17){+.+.}, at: [] generic_file_write_iter+0x99/0x650 mm/filemap.c:3205 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (&sb->s_type->i_mutex_key#17){+.+.}: down_write+0x34/0x90 kernel/locking/rwsem.c:54 inode_lock include/linux/fs.h:719 [inline] __generic_file_fsync+0x9e/0x190 fs/libfs.c:989 fat_file_fsync+0x73/0x1f0 fs/fat/file.c:165 vfs_fsync_range+0x103/0x260 fs/sync.c:196 generic_write_sync include/linux/fs.h:2684 [inline] dio_complete+0x561/0x8d0 fs/direct-io.c:330 process_one_work+0x793/0x14a0 kernel/workqueue.c:2117 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2251 kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 -> #1 ((&dio->complete_work)){+.+.}: process_one_work+0x736/0x14a0 kernel/workqueue.c:2093 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2251 kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 -> #0 ("dio/%s"sb->s_id){+.+.}: lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 flush_workqueue+0xfa/0x1310 kernel/workqueue.c:2625 drain_workqueue+0x177/0x3e0 kernel/workqueue.c:2790 destroy_workqueue+0x71/0x710 kernel/workqueue.c:4116 __alloc_workqueue_key+0xd50/0x1080 kernel/workqueue.c:4093 sb_init_dio_done_wq+0x34/0x80 fs/direct-io.c:624 do_blockdev_direct_IO fs/direct-io.c:1287 [inline] __blockdev_direct_IO+0x3df1/0xdcb0 fs/direct-io.c:1423 blockdev_direct_IO include/linux/fs.h:2994 [inline] fat_direct_IO+0x19b/0x320 fs/fat/inode.c:275 generic_file_direct_write+0x1df/0x420 mm/filemap.c:2958 __generic_file_write_iter+0x2a2/0x590 mm/filemap.c:3137 generic_file_write_iter+0x36f/0x650 mm/filemap.c:3208 call_write_iter include/linux/fs.h:1780 [inline] aio_write+0x2ed/0x560 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x847/0x1570 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb other info that might help us debug this: Chain exists of: "dio/%s"sb->s_id --> (&dio->complete_work) --> &sb->s_type->i_mutex_key#17 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&sb->s_type->i_mutex_key#17); lock((&dio->complete_work)); lock(&sb->s_type->i_mutex_key#17); lock("dio/%s"sb->s_id); *** DEADLOCK *** 2 locks held by syz-executor768/8087: #0: (sb_writers#11){.+.+}, at: [] file_start_write include/linux/fs.h:2714 [inline] #0: (sb_writers#11){.+.+}, at: [] aio_write+0x408/0x560 fs/aio.c:1552 #1: (&sb->s_type->i_mutex_key#17){+.+.}, at: [] inode_lock include/linux/fs.h:719 [inline] #1: (&sb->s_type->i_mutex_key#17){+.+.}, at: [] generic_file_write_iter+0x99/0x650 mm/filemap.c:3205 stack backtrace: CPU: 0 PID: 8087 Comm: syz-executor768 Not tainted 4.14.260-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+0x1b2/0x281 lib/dump_stack.c:58 print_circular_bug.constprop.0.cold+0x2d7/0x41e kernel/locking/lockdep.c:1258 check_prev_add kernel/locking/lockdep.c:1905 [inline] check_prevs_add kernel/locking/lockdep.c:2022 [inline] validate_chain kernel/locking/lockdep.c:2464 [inline] __lock_acquire+0x2e0e/0x3f20 kernel/locking/lockdep.c:3491 lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 flush_workqueue+0xfa/0x1310 kernel/workqueue.c:2625 drain_workqueue+0x177/0x3e0 kernel/workqueue.c:2790 destroy_workqueue+0x71/0x710 kernel/workqueue.c:4116 __alloc_workqueue_key+0xd50/0x1080 kernel/workqueue.c:4093 sb_init_dio_done_wq+0x34/0x80 fs/direct-io.c:624 do_blockdev_direct_IO fs/direct-io.c:1287 [inline] __blockdev_direct_IO+0x3df1/0xdcb0 fs/direct-io.c:1423 blockdev_direct_IO include/linux/fs.h:2994 [inline] fat_direct_IO+0x19b/0x320 fs/fat/inode.c:275 generic_file_direct_write+0x1df/0x420 mm/filemap.c:2958 __generic_file_write_iter+0x2a2/0x590 mm/filemap.c:3137 generic_file_write_iter+0x36f/0x650 mm/filemap.c:3208 call_write_iter include/linux/fs.h:1780 [inline] aio_write+0x2ed/0x560 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x847/0x1570 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f17a7145cf9 RSP: 002b:00007f17a70f22e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007f17a71ca4c0 RCX: 00007f17a7145cf9 RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f17a70c9000 RBP: 00007f17a71970d0 R08: 0000000000000001 R09: 0000000000000033 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f17a71ca4cc R13: 00007f17a70f22f0 R14: 00007f17a71ca4c8 R15: 0000000000000001 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 8097 Comm: syz-executor768 Not tainted 4.14.260-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+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x40/0x3c0 mm/slab.c:3550 mempool_alloc+0x10e/0x2d0 mm/mempool.c:330 bvec_alloc+0xcc/0x2d0 block/bio.c:216 bio_alloc_bioset+0x585/0x830 block/bio.c:506 bio_alloc include/linux/bio.h:422 [inline] mpage_alloc+0x56/0x2b0 fs/mpage.c:79 __mpage_writepage+0xb33/0x11e0 fs/mpage.c:622 write_cache_pages+0x505/0xd20 mm/page-writeback.c:2257 mpage_writepages+0xbe/0x1f0 fs/mpage.c:716 do_writepages+0xc3/0x240 mm/page-writeback.c:2361 __filemap_fdatawrite_range+0x236/0x310 mm/filemap.c:346 filemap_write_and_wait_range mm/filemap.c:581 [inline] filemap_write_and_wait_range+0x39/0xb0 mm/filemap.c:575 generic_file_direct_write+0x31f/0x420 mm/filemap.c:2934 __generic_file_write_iter+0x2a2/0x590 mm/filemap.c:3137 generic_file_write_iter+0x36f/0x650 mm/filemap.c:3208 call_write_iter include/linux/fs.h:1780 [inline] aio_write+0x2ed/0x560 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x847/0x1570 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f17a7145cf9 RSP: 002b:00007f17a70f22e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007f17a71ca4c0 RCX: 00007f17a7145cf9 RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f17a70c9000 RBP: 00007f17a71970d0 R08: 0000000000000001 R09: 0000000000000033 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f17a71ca4cc R13: 00007f17a70f22f0 R14: 00007f17a71ca4c8 R15: 0000000000000001 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 8105 Comm: syz-executor768 Not tainted 4.14.260-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+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x40/0x3c0 mm/slab.c:3550 mempool_alloc+0x10e/0x2d0 mm/mempool.c:330 bvec_alloc+0xcc/0x2d0 block/bio.c:216 bio_alloc_bioset+0x585/0x830 block/bio.c:506 bio_alloc include/linux/bio.h:422 [inline] mpage_alloc+0x56/0x2b0 fs/mpage.c:79 __mpage_writepage+0xb33/0x11e0 fs/mpage.c:622 write_cache_pages+0x505/0xd20 mm/page-writeback.c:2257 mpage_writepages+0xbe/0x1f0 fs/mpage.c:716 do_writepages+0xc3/0x240 mm/page-writeback.c:2361 __filemap_fdatawrite_range+0x236/0x310 mm/filemap.c:346 filemap_write_and_wait_range mm/filemap.c:581 [inline] filemap_write_and_wait_range+0x39/0xb0 mm/filemap.c:575 generic_file_direct_write+0x31f/0x420 mm/filemap.c:2934 __generic_file_write_iter+0x2a2/0x590 mm/filemap.c:3137 generic_file_write_iter+0x36f/0x650 mm/filemap.c:3208 call_write_iter include/linux/fs.h:1780 [inline] aio_write+0x2ed/0x560 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x847/0x1570 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f17a7145cf9 RSP: 002b:00007f17a70f22e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007f17a71ca4c0 RCX: 00007f17a7145cf9 RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f17a70c9000 RBP: 00007f17a71970d0 R08: 0000000000000001 R09: 0000000000000033 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f17a71ca4cc R13: 00007f17a70f22f0 R14: 00007f17a71ca4c8 R15: 0000000000000001 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 8113 Comm: syz-executor768 Not tainted 4.14.260-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+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x40/0x3c0 mm/slab.c:3550 mempool_alloc+0x10e/0x2d0 mm/mempool.c:330 bvec_alloc+0xcc/0x2d0 block/bio.c:216 bio_alloc_bioset+0x585/0x830 block/bio.c:506 bio_alloc include/linux/bio.h:422 [inline] mpage_alloc+0x56/0x2b0 fs/mpage.c:79 __mpage_writepage+0xb33/0x11e0 fs/mpage.c:622 write_cache_pages+0x505/0xd20 mm/page-writeback.c:2257 mpage_writepages+0xbe/0x1f0 fs/mpage.c:716 do_writepages+0xc3/0x240 mm/page-writeback.c:2361 __filemap_fdatawrite_range+0x236/0x310 mm/filemap.c:346 filemap_write_and_wait_range mm/filemap.c:581 [inline] filemap_write_and_wait_range+0x39/0xb0 mm/filemap.c:575 generic_file_direct_write+0x31f/0x420 mm/filemap.c:2934 __generic_file_write_iter+0x2a2/0x590 mm/filemap.c:3137 generic_file_write_iter+0x36f/0x650 mm/filemap.c:3208 call_write_iter include/linux/fs.h:1780 [inline] aio_write+0x2ed/0x560 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x847/0x1570 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f17a7145cf9 RSP: 002b:00007f17a70f22e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007f17a71ca4c0 RCX: 00007f17a7145cf9 RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f17a70c9000 RBP: 00007f17a71970d0 R08: 0000000000000001 R09: 0000000000000033 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f17a71ca4cc R13: 00007f17a70f22f0 R14: 00007f17a71ca4c8 R15: 0000000000000001 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 8121 Comm: syz-executor768 Not tainted 4.14.260-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+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x40/0x3c0 mm/slab.c:3550 mempool_alloc+0x10e/0x2d0 mm/mempool.c:330 bvec_alloc+0xcc/0x2d0 block/bio.c:216 bio_alloc_bioset+0x585/0x830 block/bio.c:506 bio_alloc include/linux/bio.h:422 [inline] mpage_alloc+0x56/0x2b0 fs/mpage.c:79 __mpage_writepage+0xb33/0x11e0 fs/mpage.c:622 write_cache_pages+0x505/0xd20 mm/page-writeback.c:2257 mpage_writepages+0xbe/0x1f0 fs/mpage.c:716 do_writepages+0xc3/0x240 mm/page-writeback.c:2361 __filemap_fdatawrite_range+0x236/0x310 mm/filemap.c:346 filemap_write_and_wait_range mm/filemap.c:581 [inline] filemap_write_and_wait_range+0x39/0xb0 mm/filemap.c:575 generic_file_direct_write+0x31f/0x420 mm/filemap.c:2934 __generic_file_write_iter+0x2a2/0x590 mm/filemap.c:3137 generic_file_write_iter+0x36f/0x650 mm/filemap.c:3208 call_write_iter include/linux/fs.h:1780 [inline] aio_write+0x2ed/0x560 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x847/0x1570 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f17a7145cf9 RSP: 002b:00007f17a70f22e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007f17a71ca4c0 RCX: 00007f17a7145cf9 RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f17a70c9000 RBP: 00007f17a71970d0 R08: 0000000000000001 R09: 0000000000000033 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f17a71ca4cc R13: 00007f17a70f22f0 R14: 00007f17a71ca4c8 R15: 0000000000000001 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 8130 Comm: syz-executor768 Not tainted 4.14.260-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+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x40/0x3c0 mm/slab.c:3550 mempool_alloc+0x10e/0x2d0 mm/mempool.c:330 bvec_alloc+0xcc/0x2d0 block/bio.c:216 bio_alloc_bioset+0x585/0x830 block/bio.c:506 bio_alloc include/linux/bio.h:422 [inline] mpage_alloc+0x56/0x2b0 fs/mpage.c:79 __mpage_writepage+0xb33/0x11e0 fs/mpage.c:622 write_cache_pages+0x505/0xd20 mm/page-writeback.c:2257 mpage_writepages+0xbe/0x1f0 fs/mpage.c:716 do_writepages+0xc3/0x240 mm/page-writeback.c:2361 __filemap_fdatawrite_range+0x236/0x310 mm/filemap.c:346 filemap_write_and_wait_range mm/filemap.c:581 [inline] filemap_write_and_wait_range+0x39/0xb0 mm/filemap.c:575 generic_file_direct_write+0x31f/0x420 mm/filemap.c:2934 __generic_file_write_iter+0x2a2/0x590 mm/filemap.c:3137 generic_file_write_iter+0x36f/0x650 mm/filemap.c:3208 call_write_iter include/linux/fs.h:1780 [inline] aio_write+0x2ed/0x560 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x847/0x1570 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f17a7145cf9 RSP: 002b:00007f17a70f22e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007f17a71ca4c0 RCX: 00007f17a7145cf9 RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f17a70c9000 RBP: 00007f17a71970d0 R08: 0000000000000001 R09: 0000000000000033 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f17a71ca4cc R13: 00007f17a70f22f0 R14: 00007f17a71ca4c8 R15: 0000000000000001 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 8139 Comm: syz-executor768 Not tainted 4.14.260-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+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x40/0x3c0 mm/slab.c:3550 mempool_alloc+0x10e/0x2d0 mm/mempool.c:330 bvec_alloc+0xcc/0x2d0 block/bio.c:216 bio_alloc_bioset+0x585/0x830 block/bio.c:506 bio_alloc include/linux/bio.h:422 [inline] mpage_alloc+0x56/0x2b0 fs/mpage.c:79 __mpage_writepage+0xb33/0x11e0 fs/mpage.c:622 write_cache_pages+0x505/0xd20 mm/page-writeback.c:2257 mpage_writepages+0xbe/0x1f0 fs/mpage.c:716 do_writepages+0xc3/0x240 mm/page-writeback.c:2361 __filemap_fdatawrite_range+0x236/0x310 mm/filemap.c:346 filemap_write_and_wait_range mm/filemap.c:581 [inline] filemap_write_and_wait_range+0x39/0xb0 mm/filemap.c:575 generic_file_direct_write+0x31f/0x420 mm/filemap.c:2934 __generic_file_write_iter+0x2a2/0x590 mm/filemap.c:3137 generic_file_write_iter+0x36f/0x650 mm/filemap.c:3208 call_write_iter include/linux/fs.h:1780 [inline] aio_write+0x2ed/0x560 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x847/0x1570 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f17a7145cf9 RSP: 002b:00007f17a70f22e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007f17a71ca4c0 RCX: 00007f17a7145cf9 RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f17a70c9000 RBP: 00007f17a71970d0 R08: 0000000000000001 R09: 0000000000000033 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f17a71ca4cc R13: 00007f17a70f22f0 R14: 00007f17a71ca4c8 R15: 0000000000000001 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 8147 Comm: syz-executor768 Not tainted 4.14.260-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+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x40/0x3c0 mm/slab.c:3550 mempool_alloc+0x10e/0x2d0 mm/mempool.c:330 bvec_alloc+0xcc/0x2d0 block/bio.c:216 bio_alloc_bioset+0x585/0x830 block/bio.c:506 bio_alloc include/linux/bio.h:422 [inline] mpage_alloc+0x56/0x2b0 fs/mpage.c:79 __mpage_writepage+0xb33/0x11e0 fs/mpage.c:622 write_cache_pages+0x505/0xd20 mm/page-writeback.c:2257 mpage_writepages+0xbe/0x1f0 fs/mpage.c:716 do_writepages+0xc3/0x240 mm/page-writeback.c:2361 __filemap_fdatawrite_range+0x236/0x310 mm/filemap.c:346 filemap_write_and_wait_range mm/filemap.c:581 [inline] filemap_write_and_wait_range+0x39/0xb0 mm/filemap.c:575 generic_file_direct_write+0x31f/0x420 mm/filemap.c:2934 __generic_file_write_iter+0x2a2/0x590 mm/filemap.c:3137 generic_file_write_iter+0x36f/0x650 mm/filemap.c:3208 call_write_iter include/linux/fs.h:1780 [inline] aio_write+0x2ed/0x560 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x847/0x1570 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f17a7145cf9 RSP: 002b:00007f17a70f22e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007f17a71ca4c0 RCX: 00007f17a7145cf9 RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f17a70c9000 RBP: 00007f17a71970d0 R08: 0000000000000001 R09: 0000000000000033 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f17a71ca4cc R13: 00007f17a70f22f0 R14: 00007f17a71ca4c8 R15: 0000000000000001 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 8155 Comm: syz-executor768 Not tainted 4.14.260-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+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x40/0x3c0 mm/slab.c:3550 mempool_alloc+0x10e/0x2d0 mm/mempool.c:330 bvec_alloc+0xcc/0x2d0 block/bio.c:216 bio_alloc_bioset+0x585/0x830 block/bio.c:506 bio_alloc include/linux/bio.h:422 [inline] mpage_alloc+0x56/0x2b0 fs/mpage.c:79 __mpage_writepage+0xb33/0x11e0 fs/mpage.c:622 write_cache_pages+0x505/0xd20 mm/page-writeback.c:2257 mpage_writepages+0xbe/0x1f0 fs/mpage.c:716 do_writepages+0xc3/0x240 mm/page-writeback.c:2361 __filemap_fdatawrite_range+0x236/0x310 mm/filemap.c:346 filemap_write_and_wait_range mm/filemap.c:581 [inline] filemap_write_and_wait_range+0x39/0xb0 mm/filemap.c:575 generic_file_direct_write+0x31f/0x420 mm/filemap.c:2934 __generic_file_write_iter+0x2a2/0x590 mm/filemap.c:3137 generic_file_write_iter+0x36f/0x650 mm/filemap.c:3208 call_write_iter include/linux/fs.h:1780 [inline] aio_write+0x2ed/0x560 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x847/0x1570 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f17a7145cf9 RSP: 002b:00007f17a70f22e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007f17a71ca4c0 RCX: 00007f17a7145cf9 RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f17a70c9000 RBP: 00007f17a71970d0 R08: 0000000000000001 R09: 0000000000000033 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f17a71ca4cc R13: 00007f17a70f22f0 R14: 00007f17a71ca4c8 R15: 0000000000000001 FAULT_INJECTION: forcing a failure. name fail_page_alloc, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 8165 Comm: syz-executor768 Not tainted 4.14.260-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+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_fail_alloc_page mm/page_alloc.c:2898 [inline] prepare_alloc_pages mm/page_alloc.c:4131 [inline] __alloc_pages_nodemask+0x22c/0x2720 mm/page_alloc.c:4179 __alloc_pages include/linux/gfp.h:484 [inline] __alloc_pages_node include/linux/gfp.h:497 [inline] kmem_getpages mm/slab.c:1419 [inline] cache_grow_begin+0x91/0x700 mm/slab.c:2676 cache_alloc_refill+0x273/0x350 mm/slab.c:3043 ____cache_alloc mm/slab.c:3125 [inline] __do_cache_alloc mm/slab.c:3347 [inline] slab_alloc mm/slab.c:3382 [inline] kmem_cache_alloc+0x333/0x3c0 mm/slab.c:3550 mempool_alloc+0x10e/0x2d0 mm/mempool.c:330 bio_alloc_bioset+0x41b/0x830 block/bio.c:486 bio_alloc include/linux/bio.h:422 [inline] mpage_alloc+0x56/0x2b0 fs/mpage.c:79 __mpage_writepage+0xb33/0x11e0 fs/mpage.c:622 write_cache_pages+0x505/0xd20 mm/page-writeback.c:2257 mpage_writepages+0xbe/0x1f0 fs/mpage.c:716 do_writepages+0xc3/0x240 mm/page-writeback.c:2361 __filemap_fdatawrite_range+0x236/0x310 mm/filemap.c:346 filemap_write_and_wait_range mm/filemap.c:581 [inline] filemap_write_and_wait_range+0x39/0xb0 mm/filemap.c:575 generic_file_direct_write+0x31f/0x420 mm/filemap.c:2934 __generic_file_write_iter+0x2a2/0x590 mm/filemap.c:3137 generic_file_write_iter+0x36f/0x650 mm/filemap.c:3208 call_write_iter include/linux/fs.h:1780 [inline] aio_write+0x2ed/0x560 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x847/0x1570 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f17a7145cf9 RSP: 002b:00007f17a70f22e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007f17a71ca4c0 RCX: 00007f17a7145cf9 RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f17a70c9000 RBP: 00007f17a71970d0 R08: 0000000000000001 R09: 0000000000000033 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f17a71ca4cc R13: 00007f17a70f22f0 R14: 00007f17a71ca4c8 R15: 0000000000000001 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 8174 Comm: syz-executor768 Not tainted 4.14.260-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+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x40/0x3c0 mm/slab.c:3550 mempool_alloc+0x10e/0x2d0 mm/mempool.c:330 bvec_alloc+0xcc/0x2d0 block/bio.c:216 bio_alloc_bioset+0x585/0x830 block/bio.c:506 bio_alloc include/linux/bio.h:422 [inline] mpage_alloc+0x56/0x2b0 fs/mpage.c:79 __mpage_writepage+0xb33/0x11e0 fs/mpage.c:622 write_cache_pages+0x505/0xd20 mm/page-writeback.c:2257 mpage_writepages+0xbe/0x1f0 fs/mpage.c:716 do_writepages+0xc3/0x240 mm/page-writeback.c:2361 __filemap_fdatawrite_range+0x236/0x310 mm/filemap.c:346 filemap_write_and_wait_range mm/filemap.c:581 [inline] filemap_write_and_wait_range+0x39/0xb0 mm/filemap.c:575 generic_file_direct_write+0x31f/0x420 mm/filemap.c:2934 __generic_file_write_iter+0x2a2/0x590 mm/filemap.c:3137 generic_file_write_iter+0x36f/0x650 mm/filemap.c:3208 call_write_iter include/linux/fs.h:1780 [inline] aio_write+0x2ed/0x560 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x847/0x1570 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f17a7145cf9 RSP: 002b:00007f17a70f22e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007f17a71ca4c0 RCX: 00007f17a7145cf9 RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f17a70c9000 RBP: 00007f17a71970d0 R08: 0000000000000001 R09: 0000000000000033 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f17a71ca4cc R13: 00007f17a70f22f0 R14: 00007f17a71ca4c8 R15: 0000000000000001 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 8182 Comm: syz-executor768 Not tainted 4.14.260-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+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x40/0x3c0 mm/slab.c:3550 mempool_alloc+0x10e/0x2d0 mm/mempool.c:330 bvec_alloc+0xcc/0x2d0 block/bio.c:216 bio_alloc_bioset+0x585/0x830 block/bio.c:506 bio_alloc include/linux/bio.h:422 [inline] mpage_alloc+0x56/0x2b0 fs/mpage.c:79 __mpage_writepage+0xb33/0x11e0 fs/mpage.c:622 write_cache_pages+0x505/0xd20 mm/page-writeback.c:2257 mpage_writepages+0xbe/0x1f0 fs/mpage.c:716 do_writepages+0xc3/0x240 mm/page-writeback.c:2361 __filemap_fdatawrite_range+0x236/0x310 mm/filemap.c:346 filemap_write_and_wait_range mm/filemap.c:581 [inline] filemap_write_and_wait_range+0x39/0xb0 mm/filemap.c:575 generic_file_direct_write+0x31f/0x420 mm/filemap.c:2934 __generic_file_write_iter+0x2a2/0x590 mm/filemap.c:3137 generic_file_write_iter+0x36f/0x650 mm/filemap.c:3208 call_write_iter include/linux/fs.h:1780 [inline] aio_write+0x2ed/0x560 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x847/0x1570 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f17a7145cf9 RSP: 002b:00007f17a70f22e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007f17a71ca4c0 RCX: 00007f17a7145cf9 RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f17a70c9000 RBP: 00007f17a71970d0 R08: 0000000000000001 R09: 0000000000000033 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f17a71ca4cc R13: 00007f17a70f22f0 R14: 00007f17a71ca4c8 R15: 0000000000000001 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 8191 Comm: syz-executor768 Not tainted 4.14.260-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+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x40/0x3c0 mm/slab.c:3550 mempool_alloc+0x10e/0x2d0 mm/mempool.c:330 bio_alloc_bioset+0x41b/0x830 block/bio.c:486 bio_alloc include/linux/bio.h:422 [inline] mpage_alloc+0x56/0x2b0 fs/mpage.c:79 __mpage_writepage+0xb33/0x11e0 fs/mpage.c:622 write_cache_pages+0x505/0xd20 mm/page-writeback.c:2257 mpage_writepages+0xbe/0x1f0 fs/mpage.c:716 do_writepages+0xc3/0x240 mm/page-writeback.c:2361 __filemap_fdatawrite_range+0x236/0x310 mm/filemap.c:346 filemap_write_and_wait_range mm/filemap.c:581 [inline] filemap_write_and_wait_range+0x39/0xb0 mm/filemap.c:575 generic_file_direct_write+0x31f/0x420 mm/filemap.c:2934 __generic_file_write_iter+0x2a2/0x590 mm/filemap.c:3137 generic_file_write_iter+0x36f/0x650 mm/filemap.c:3208 call_write_iter include/linux/fs.h:1780 [inline] aio_write+0x2ed/0x560 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x847/0x1570 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f17a7145cf9 RSP: 002b:00007f17a70f22e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007f17a71ca4c0 RCX: 00007f17a7145cf9 RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f17a70c9000 RBP: 00007f17a71970d0 R08: 0000000000000001 R09: 0000000000000033 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f17a71ca4cc R13: 00007f17a70f22f0 R14: 00007f17a71ca4c8 R15: 0000000000000001 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 8200 Comm: syz-executor768 Not tainted 4.14.260-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+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x40/0x3c0 mm/slab.c:3550 mempool_alloc+0x10e/0x2d0 mm/mempool.c:330 bvec_alloc+0xcc/0x2d0 block/bio.c:216 bio_alloc_bioset+0x585/0x830 block/bio.c:506 bio_alloc include/linux/bio.h:422 [inline] mpage_alloc+0x56/0x2b0 fs/mpage.c:79 __mpage_writepage+0xb33/0x11e0 fs/mpage.c:622 write_cache_pages+0x505/0xd20 mm/page-writeback.c:2257 mpage_writepages+0xbe/0x1f0 fs/mpage.c:716 do_writepages+0xc3/0x240 mm/page-writeback.c:2361 __filemap_fdatawrite_range+0x236/0x310 mm/filemap.c:346 filemap_write_and_wait_range mm/filemap.c:581 [inline] filemap_write_and_wait_range+0x39/0xb0 mm/filemap.c:575 generic_file_direct_write+0x31f/0x420 mm/filemap.c:2934 __generic_file_write_iter+0x2a2/0x590 mm/filemap.c:3137 generic_file_write_iter+0x36f/0x650 mm/filemap.c:3208 call_write_iter include/linux/fs.h:1780 [inline] aio_write+0x2ed/0x560 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x847/0x1570 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f17a7145cf9 RSP: 002b:00007f17a70f22e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007f17a71ca4c0 RCX: 00007f17a7145cf9 RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f17a70c9000 RBP: 00007f17a71970d0 R08: 0000000000000001 R09: 0000000000000033 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f17a71ca4cc R13: 00007f17a70f22f0 R14: 00007f17a71ca4c8 R15: 0000000000000001 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 8207 Comm: syz-executor768 Not tainted 4.14.260-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+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x40/0x3c0 mm/slab.c:3550 mempool_alloc+0x10e/0x2d0 mm/mempool.c:330 bvec_alloc+0xcc/0x2d0 block/bio.c:216 bio_alloc_bioset+0x585/0x830 block/bio.c:506 bio_alloc include/linux/bio.h:422 [inline] mpage_alloc+0x56/0x2b0 fs/mpage.c:79 __mpage_writepage+0xb33/0x11e0 fs/mpage.c:622 write_cache_pages+0x505/0xd20 mm/page-writeback.c:2257 mpage_writepages+0xbe/0x1f0 fs/mpage.c:716 do_writepages+0xc3/0x240 mm/page-writeback.c:2361 __filemap_fdatawrite_range+0x236/0x310 mm/filemap.c:346 filemap_write_and_wait_range mm/filemap.c:581 [inline] filemap_write_and_wait_range+0x39/0xb0 mm/filemap.c:575 generic_file_direct_write+0x31f/0x420 mm/filemap.c:2934 __generic_file_write_iter+0x2a2/0x590 mm/filemap.c:3137 generic_file_write_iter+0x36f/0x650 mm/filemap.c:3208 call_write_iter include/linux/fs.h:1780 [inline] aio_write+0x2ed/0x560 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x847/0x1570 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f17a7145cf9 RSP: 002b:00007f17a70f22e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007f17a71ca4c0 RCX: 00007f17a7145cf9 RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f17a70c9000 RBP: 00007f17a71970d0 R08: 0000000000000001 R09: 0000000000000033 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f17a71ca4cc R13: 00007f17a70f22f0 R14: 00007f17a71ca4c8 R15: 0000000000000001 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 8217 Comm: syz-executor768 Not tainted 4.14.260-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+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x40/0x3c0 mm/slab.c:3550 mempool_alloc+0x10e/0x2d0 mm/mempool.c:330 bvec_alloc+0xcc/0x2d0 block/bio.c:216 bio_alloc_bioset+0x585/0x830 block/bio.c:506 bio_alloc include/linux/bio.h:422 [inline] mpage_alloc+0x56/0x2b0 fs/mpage.c:79 __mpage_writepage+0xb33/0x11e0 fs/mpage.c:622 write_cache_pages+0x505/0xd20 mm/page-writeback.c:2257 mpage_writepages+0xbe/0x1f0 fs/mpage.c:716 do_writepages+0xc3/0x240 mm/page-writeback.c:2361 __filemap_fdatawrite_range+0x236/0x310 mm/filemap.c:346 filemap_write_and_wait_range mm/filemap.c:581 [inline] filemap_write_and_wait_range+0x39/0xb0 mm/filemap.c:575 generic_file_direct_write+0x31f/0x420 mm/filemap.c:2934 __generic_file_write_iter+0x2a2/0x590 mm/filemap.c:3137 generic_file_write_iter+0x36f/0x650 mm/filemap.c:3208 call_write_iter include/linux/fs.h:1780 [inline] aio_write+0x2ed/0x560 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x847/0x1570 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f17a7145cf9 RSP: 002b:00007f17a70f22e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007f17a71ca4c0 RCX: 00007f17a7145cf9 RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f17a70c9000 RBP: 00007f17a71970d0 R08: 0000000000000001 R09: 0000000000000033 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f17a71ca4cc R13: 00007f17a70f22f0 R14: 00007f17a71ca4c8 R15: 0000000000000001 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 8226 Comm: syz-executor768 Not tainted 4.14.260-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+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x40/0x3c0 mm/slab.c:3550 mempool_alloc+0x10e/0x2d0 mm/mempool.c:330 bvec_alloc+0xcc/0x2d0 block/bio.c:216 bio_alloc_bioset+0x585/0x830 block/bio.c:506 bio_alloc include/linux/bio.h:422 [inline] mpage_alloc+0x56/0x2b0 fs/mpage.c:79 __mpage_writepage+0xb33/0x11e0 fs/mpage.c:622 write_cache_pages+0x505/0xd20 mm/page-writeback.c:2257 mpage_writepages+0xbe/0x1f0 fs/mpage.c:716 do_writepages+0xc3/0x240 mm/page-writeback.c:2361 __filemap_fdatawrite_range+0x236/0x310 mm/filemap.c:346 filemap_write_and_wait_range mm/filemap.c:581 [inline] filemap_write_and_wait_range+0x39/0xb0 mm/filemap.c:575 generic_file_direct_write+0x31f/0x420 mm/filemap.c:2934 __generic_file_write_iter+0x2a2/0x590 mm/filemap.c:3137 generic_file_write_iter+0x36f/0x650 mm/filemap.c:3208 call_write_iter include/linux/fs.h:1780 [inline] aio_write+0x2ed/0x560 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x847/0x1570 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f17a7145cf9 RSP: 002b:00007f17a70f22e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007f17a71ca4c0 RCX: 00007f17a7145cf9 RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f17a70c9000 RBP: 00007f17a71970d0 R08: 0000000000000001 R09: 0000000000000033 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f17a71ca4cc R13: 00007f17a70f22f0 R14: 00007f17a71ca4c8 R15: 0000000000000001 FAULT_INJECTION: forcing a failure. name fail_page_alloc, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 8234 Comm: syz-executor768 Not tainted 4.14.260-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+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_fail_alloc_page mm/page_alloc.c:2898 [inline] prepare_alloc_pages mm/page_alloc.c:4131 [inline] __alloc_pages_nodemask+0x22c/0x2720 mm/page_alloc.c:4179 __alloc_pages include/linux/gfp.h:484 [inline] __alloc_pages_node include/linux/gfp.h:497 [inline] kmem_getpages mm/slab.c:1419 [inline] cache_grow_begin+0x91/0x700 mm/slab.c:2676 cache_alloc_refill+0x273/0x350 mm/slab.c:3043 ____cache_alloc mm/slab.c:3125 [inline] __do_cache_alloc mm/slab.c:3347 [inline] slab_alloc mm/slab.c:3382 [inline] kmem_cache_alloc+0x333/0x3c0 mm/slab.c:3550 mempool_alloc+0x10e/0x2d0 mm/mempool.c:330 bio_alloc_bioset+0x41b/0x830 block/bio.c:486 bio_alloc include/linux/bio.h:422 [inline] mpage_alloc+0x56/0x2b0 fs/mpage.c:79 __mpage_writepage+0xb33/0x11e0 fs/mpage.c:622 write_cache_pages+0x505/0xd20 mm/page-writeback.c:2257 mpage_writepages+0xbe/0x1f0 fs/mpage.c:716 do_writepages+0xc3/0x240 mm/page-writeback.c:2361 __filemap_fdatawrite_range+0x236/0x310 mm/filemap.c:346 filemap_write_and_wait_range mm/filemap.c:581 [inline] filemap_write_and_wait_range+0x39/0xb0 mm/filemap.c:575 generic_file_direct_write+0x31f/0x420 mm/filemap.c:2934 __generic_file_write_iter+0x2a2/0x590 mm/filemap.c:3137 generic_file_write_iter+0x36f/0x650 mm/filemap.c:3208 call_write_iter include/linux/fs.h:1780 [inline] aio_write+0x2ed/0x560 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x847/0x1570 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f17a7145cf9 RSP: 002b:00007f17a70f22e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007f17a71ca4c0 RCX: 00007f17a7145cf9 RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f17a70c9000 RBP: 00007f17a71970d0 R08: 0000000000000001 R09: 0000000000000033 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f17a71ca4cc R13: 00007f17a70f22f0 R14: 00007f17a71ca4c8 R15: 0000000000000001 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 8243 Comm: syz-executor768 Not tainted 4.14.260-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+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x40/0x3c0 mm/slab.c:3550 mempool_alloc+0x10e/0x2d0 mm/mempool.c:330 bvec_alloc+0xcc/0x2d0 block/bio.c:216 bio_alloc_bioset+0x585/0x830 block/bio.c:506 bio_alloc include/linux/bio.h:422 [inline] mpage_alloc+0x56/0x2b0 fs/mpage.c:79 __mpage_writepage+0xb33/0x11e0 fs/mpage.c:622 write_cache_pages+0x505/0xd20 mm/page-writeback.c:2257 mpage_writepages+0xbe/0x1f0 fs/mpage.c:716 do_writepages+0xc3/0x240 mm/page-writeback.c:2361 __filemap_fdatawrite_range+0x236/0x310 mm/filemap.c:346 filemap_write_and_wait_range mm/filemap.c:581 [inline] filemap_write_and_wait_range+0x39/0xb0 mm/filemap.c:575 generic_file_direct_write+0x31f/0x420 mm/filemap.c:2934 __generic_file_write_iter+0x2a2/0x590 mm/filemap.c:3137 generic_file_write_iter+0x36f/0x650 mm/filemap.c:3208 call_write_iter include/linux/fs.h:1780 [inline] aio_write+0x2ed/0x560 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x847/0x1570 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f17a7145cf9 RSP: 002b:00007f17a70f22e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007f17a71ca4c0 RCX: 00007f17a7145cf9