INFO: task syz-executor129:10308 blocked for more than 143 seconds.
      Not tainted 5.3.0-rc4 #107
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor129 D26728 10308  10294 0x80000000
Call Trace:
 context_switch kernel/sched/core.c:3254 [inline]
 __schedule+0x755/0x1580 kernel/sched/core.c:3880
 schedule+0xa8/0x270 kernel/sched/core.c:3944
 schedule_timeout+0x717/0xc50 kernel/time/timer.c:1783
 do_wait_for_common kernel/sched/completion.c:83 [inline]
 __wait_for_common kernel/sched/completion.c:104 [inline]
 wait_for_common kernel/sched/completion.c:115 [inline]
 wait_for_completion+0x29c/0x440 kernel/sched/completion.c:136
 exit_aio+0x321/0x3a0 fs/aio.c:895
 __mmput kernel/fork.c:1061 [inline]
 mmput+0xcf/0x4d0 kernel/fork.c:1085
 exit_mm kernel/exit.c:547 [inline]
 do_exit+0x84e/0x2e50 kernel/exit.c:866
 do_group_exit+0x135/0x360 kernel/exit.c:983
 __do_sys_exit_group kernel/exit.c:994 [inline]
 __se_sys_exit_group kernel/exit.c:992 [inline]
 __x64_sys_exit_group+0x44/0x50 kernel/exit.c:992
 do_syscall_64+0xfd/0x6a0 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x440808
Code: 00 00 be 3c 00 00 00 eb 19 66 0f 1f 84 00 00 00 00 00 48 89 d7 89 f0 0f 05 48 3d 00 f0 ff ff 77 21 f4 48 89 d7 44 89 c0 0f 05 <48> 3d 00 f0 ff ff 76 e0 f7 d8 64 41 89 01 eb d8 0f 1f 84 00 00 00
RSP: 002b:00007fff7c6729e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440808
RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000
RBP: 00000000004c0f10 R08: 00000000000000e7 R09: ffffffffffffffd0
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00000000006d3180 R14: 0000000000000000 R15: 0000000000000000
INFO: task syz-executor129:10343 blocked for more than 143 seconds.
      Not tainted 5.3.0-rc4 #107
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor129 D26608 10343  10295 0x80000000
Call Trace:
 context_switch kernel/sched/core.c:3254 [inline]
 __schedule+0x755/0x1580 kernel/sched/core.c:3880
 schedule+0xa8/0x270 kernel/sched/core.c:3944
 schedule_timeout+0x717/0xc50 kernel/time/timer.c:1783
 do_wait_for_common kernel/sched/completion.c:83 [inline]
 __wait_for_common kernel/sched/completion.c:104 [inline]
 wait_for_common kernel/sched/completion.c:115 [inline]
 wait_for_completion+0x29c/0x440 kernel/sched/completion.c:136
 exit_aio+0x321/0x3a0 fs/aio.c:895
 __mmput kernel/fork.c:1061 [inline]
 mmput+0xcf/0x4d0 kernel/fork.c:1085
 exit_mm kernel/exit.c:547 [inline]
 do_exit+0x84e/0x2e50 kernel/exit.c:866
 do_group_exit+0x135/0x360 kernel/exit.c:983
 __do_sys_exit_group kernel/exit.c:994 [inline]
 __se_sys_exit_group kernel/exit.c:992 [inline]
 __x64_sys_exit_group+0x44/0x50 kernel/exit.c:992
 do_syscall_64+0xfd/0x6a0 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x440808
Code: 00 00 be 3c 00 00 00 eb 19 66 0f 1f 84 00 00 00 00 00 48 89 d7 89 f0 0f 05 48 3d 00 f0 ff ff 77 21 f4 48 89 d7 44 89 c0 0f 05 <48> 3d 00 f0 ff ff 76 e0 f7 d8 64 41 89 01 eb d8 0f 1f 84 00 00 00
RSP: 002b:00007fff7c6729e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440808
RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000
RBP: 00000000004c0f10 R08: 00000000000000e7 R09: ffffffffffffffd0
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00000000006d3180 R14: 0000000000000000 R15: 0000000000000000
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 PID: 1058 Comm: khungtaskd Not tainted 5.3.0-rc4 #107
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+0x172/0x1f0 lib/dump_stack.c:113
 nmi_cpu_backtrace.cold+0x70/0xb2 lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x23b/0x28b lib/nmi_backtrace.c:62
 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:205 [inline]
 watchdog+0x9d0/0xef0 kernel/hung_task.c:289
 kthread+0x361/0x430 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 13917 Comm: syz-executor129 Not tainted 5.3.0-rc4 #107
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:follow_page_mask+0x2d/0x19b0 mm/gup.c:525
Code: e5 41 57 41 56 49 89 f6 41 55 49 89 fd 41 54 53 48 89 cb 48 83 ec 30 89 55 d4 e8 3e 52 d6 ff 49 8d 45 40 48 89 c2 48 89 45 c8 <48> b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 e2 09
RSP: 0018:ffff88808ff3f280 EFLAGS: 00000293
RAX: ffff8880a63fdb98 RBX: ffff88808ff3f3c0 RCX: ffff88808ff3f3c0
RDX: ffff8880a63fdb98 RSI: ffffffff819c1fd2 RDI: ffff8880a63fdb58
RBP: ffff88808ff3f2d8 R08: ffff8880a466a140 R09: ffffed10148cd429
R10: ffffed10148cd428 R11: ffff8880a466a147 R12: 0000000021000000
R13: ffff8880a63fdb58 R14: 000000002044b000 R15: ffff8880a63fdb58
FS:  0000555557166880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f93e7bb6000 CR3: 000000009f913000 CR4: 00000000001406e0
Call Trace:
 __get_user_pages+0x6ba/0x1b30 mm/gup.c:852
 __get_user_pages_locked mm/gup.c:1030 [inline]
 get_user_pages_unlocked+0x2ae/0x4a0 mm/gup.c:1695
 __gup_longterm_unlocked mm/gup.c:2380 [inline]
 get_user_pages_fast+0x4c0/0x570 mm/gup.c:2435
 iov_iter_get_pages+0x2c2/0xf80 lib/iov_iter.c:1287
 __bio_iov_iter_get_pages block/bio.c:900 [inline]
 bio_iov_iter_get_pages+0x1f4/0xa80 block/bio.c:956
 __blkdev_direct_IO fs/block_dev.c:396 [inline]
 blkdev_direct_IO+0xaae/0x1680 fs/block_dev.c:515
 generic_file_read_iter+0x283/0x1ce0 mm/filemap.c:2323
 blkdev_read_iter+0x120/0x190 fs/block_dev.c:2046
 call_read_iter include/linux/fs.h:1864 [inline]
 aio_read+0x252/0x3b0 fs/aio.c:1543
 __io_submit_one fs/aio.c:1813 [inline]
 io_submit_one+0x1054/0x2ef0 fs/aio.c:1862
 __do_sys_io_submit fs/aio.c:1921 [inline]
 __se_sys_io_submit fs/aio.c:1891 [inline]
 __x64_sys_io_submit+0x1bd/0x570 fs/aio.c:1891
 do_syscall_64+0xfd/0x6a0 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x441d69
Code: e8 dc e6 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 3b 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fff7c672a28 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441d69
RDX: 0000000020001540 RSI: 2000000000000246 RDI: 00007f93e7bb6000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000059b
R13: 0000000000402ac0 R14: 0000000000000000 R15: 0000000000000000