INFO: task syz-executor044:5705 blocked for more than 140 seconds. Not tainted 4.18.0-rc8+ #34 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor044 D59824 5705 4563 0x00000004 Call Trace: context_switch kernel/sched/core.c:2857 [inline] __schedule+0x667/0x770 kernel/sched/core.c:3507 schedule+0x1bc/0x2d0 kernel/sched/core.c:3551 __rwsem_down_write_failed_common+0xb51/0x13d0 kernel/locking/rwsem-xadd.c:566 rwsem_down_write_failed+0x2c/0x30 kernel/locking/rwsem-xadd.c:595 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0x5c/0xc0 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:715 [inline] lock_mount+0xbb/0x8c0 fs/namespace.c:2088 do_add_mount+0x7e/0x770 fs/namespace.c:2465 do_new_mount fs/namespace.c:2532 [inline] do_mount+0x281d/0x4f90 fs/namespace.c:2848 ksys_mount+0x32e/0x3d0 fs/namespace.c:3064 __do_sys_mount fs/namespace.c:3078 [inline] __se_sys_mount fs/namespace.c:3075 [inline] __x64_sys_mount+0x157/0x1c0 fs/namespace.c:3075 do_syscall_64+0x15b/0x220 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x63/0xe7 RIP: 0033:0x446769 Code: Bad RIP value. RSP: 002b:00007fc9a0b12da8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446769 RDX: 0000000020000300 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00000000006dbc20 R08: 0000000020000400 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 00000000006dbc2c R13: 0030656c69662f2e R14: 7974697275636573 R15: 00000000006dbd2c INFO: task syz-executor044:5708 blocked for more than 140 seconds. Not tainted 4.18.0-rc8+ #34 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor044 D60280 5708 4563 0x00000004 Call Trace: context_switch kernel/sched/core.c:2857 [inline] __schedule+0x667/0x770 kernel/sched/core.c:3507 schedule+0x1bc/0x2d0 kernel/sched/core.c:3551 __rwsem_down_write_failed_common+0xb51/0x13d0 kernel/locking/rwsem-xadd.c:566 rwsem_down_write_failed+0x2c/0x30 kernel/locking/rwsem-xadd.c:595 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0x5c/0xc0 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:715 [inline] vfs_setxattr fs/xattr.c:219 [inline] setxattr+0x545/0x9b0 fs/xattr.c:451 path_setxattr+0x292/0x460 fs/xattr.c:470 __do_sys_setxattr fs/xattr.c:485 [inline] __se_sys_setxattr fs/xattr.c:481 [inline] __x64_sys_setxattr+0x15e/0x1c0 fs/xattr.c:481 do_syscall_64+0x15b/0x220 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x63/0xe7 RIP: 0033:0x446769 Code: Bad RIP value. RSP: 002b:00007fc9a0af1da8 EFLAGS: 00000297 ORIG_RAX: 00000000000000bc RAX: ffffffffffffffda RBX: 00000000006dbc38 RCX: 0000000000446769 RDX: 0000000020000200 RSI: 00000000200001c0 RDI: 0000000020000180 RBP: 00000000006dbc30 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000000c R11: 0000000000000297 R12: 00000000006dbc3c R13: 0030656c69662f2e R14: 7974697275636573 R15: 00000000006dbd2c INFO: task syz-executor044:5720 blocked for more than 140 seconds. Not tainted 4.18.0-rc8+ #34 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor044 D59480 5720 4558 0x00000004 Call Trace: context_switch kernel/sched/core.c:2857 [inline] __schedule+0x667/0x770 kernel/sched/core.c:3507 schedule+0x1bc/0x2d0 kernel/sched/core.c:3551 request_wait_answer fs/fuse/dev.c:463 [inline] __fuse_request_send+0xe4a/0x1960 fs/fuse/dev.c:483 fuse_request_send fs/fuse/dev.c:496 [inline] fuse_simple_request+0x98d/0xbb0 fs/fuse/dev.c:554 fuse_setxattr+0x36c/0x5c0 fs/fuse/xattr.c:37 fuse_xattr_set+0x121/0x530 fs/fuse/xattr.c:192 __vfs_setxattr+0x7fa/0x850 fs/xattr.c:150 __vfs_setxattr_noperm+0x2fc/0x980 fs/xattr.c:181 vfs_setxattr fs/xattr.c:224 [inline] setxattr+0x81f/0x9b0 fs/xattr.c:451 path_setxattr+0x292/0x460 fs/xattr.c:470 __do_sys_setxattr fs/xattr.c:485 [inline] __se_sys_setxattr fs/xattr.c:481 [inline] __x64_sys_setxattr+0x15e/0x1c0 fs/xattr.c:481 do_syscall_64+0x15b/0x220 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x63/0xe7 RIP: 0033:0x446769 Code: Bad RIP value. RSP: 002b:00007fc9a0b12da8 EFLAGS: 00000297 ORIG_RAX: 00000000000000bc RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446769 RDX: 0000000020000200 RSI: 00000000200001c0 RDI: 0000000020000180 RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000000c R11: 0000000000000297 R12: 00000000006dbc2c R13: 0030656c69662f2e R14: 7974697275636573 R15: 00000000006dbd2c INFO: task syz-executor044:5726 blocked for more than 140 seconds. Not tainted 4.18.0-rc8+ #34 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor044 D59480 5726 4560 0x00000004 Call Trace: context_switch kernel/sched/core.c:2857 [inline] __schedule+0x667/0x770 kernel/sched/core.c:3507 schedule+0x1bc/0x2d0 kernel/sched/core.c:3551 __rwsem_down_write_failed_common+0xb51/0x13d0 kernel/locking/rwsem-xadd.c:566 rwsem_down_write_failed+0x2c/0x30 kernel/locking/rwsem-xadd.c:595 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0x5c/0xc0 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:715 [inline] lock_mount+0xbb/0x8c0 fs/namespace.c:2088 do_add_mount+0x7e/0x770 fs/namespace.c:2465 do_new_mount fs/namespace.c:2532 [inline] do_mount+0x281d/0x4f90 fs/namespace.c:2848 ksys_mount+0x32e/0x3d0 fs/namespace.c:3064 __do_sys_mount fs/namespace.c:3078 [inline] __se_sys_mount fs/namespace.c:3075 [inline] __x64_sys_mount+0x157/0x1c0 fs/namespace.c:3075 do_syscall_64+0x15b/0x220 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x63/0xe7 RIP: 0033:0x446769 Code: Bad RIP value. RSP: 002b:00007fc9a0b12da8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446769 RDX: 0000000020000300 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00000000006dbc20 R08: 0000000020000400 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 00000000006dbc2c R13: 0030656c69662f2e R14: 7974697275636573 R15: 00000000006dbd2c INFO: task syz-executor044:5727 blocked for more than 140 seconds. Not tainted 4.18.0-rc8+ #34 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor044 D59824 5727 4555 0x00000004 Call Trace: context_switch kernel/sched/core.c:2857 [inline] __schedule+0x667/0x770 kernel/sched/core.c:3507 schedule+0x1bc/0x2d0 kernel/sched/core.c:3551 __rwsem_down_write_failed_common+0xb51/0x13d0 kernel/locking/rwsem-xadd.c:566 rwsem_down_write_failed+0x2c/0x30 kernel/locking/rwsem-xadd.c:595 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0x5c/0xc0 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:715 [inline] lock_mount+0xbb/0x8c0 fs/namespace.c:2088 do_add_mount+0x7e/0x770 fs/namespace.c:2465 do_new_mount fs/namespace.c:2532 [inline] do_mount+0x281d/0x4f90 fs/namespace.c:2848 ksys_mount+0x32e/0x3d0 fs/namespace.c:3064 __do_sys_mount fs/namespace.c:3078 [inline] __se_sys_mount fs/namespace.c:3075 [inline] __x64_sys_mount+0x157/0x1c0 fs/namespace.c:3075 do_syscall_64+0x15b/0x220 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x63/0xe7 RIP: 0033:0x446769 Code: Bad RIP value. RSP: 002b:00007fc9a0b12da8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446769 RDX: 0000000020000300 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00000000006dbc20 R08: 0000000020000400 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 00000000006dbc2c R13: 0030656c69662f2e R14: 7974697275636573 R15: 00000000006dbd2c INFO: task syz-executor044:5728 blocked for more than 140 seconds. Not tainted 4.18.0-rc8+ #34 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor044 D59824 5728 4564 0x00000004 Call Trace: context_switch kernel/sched/core.c:2857 [inline] __schedule+0x667/0x770 kernel/sched/core.c:3507 schedule+0x1bc/0x2d0 kernel/sched/core.c:3551 __rwsem_down_write_failed_common+0xb51/0x13d0 kernel/locking/rwsem-xadd.c:566 rwsem_down_write_failed+0x2c/0x30 kernel/locking/rwsem-xadd.c:595 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0x5c/0xc0 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:715 [inline] lock_mount+0xbb/0x8c0 fs/namespace.c:2088 do_add_mount+0x7e/0x770 fs/namespace.c:2465 do_new_mount fs/namespace.c:2532 [inline] do_mount+0x281d/0x4f90 fs/namespace.c:2848 ksys_mount+0x32e/0x3d0 fs/namespace.c:3064 __do_sys_mount fs/namespace.c:3078 [inline] __se_sys_mount fs/namespace.c:3075 [inline] __x64_sys_mount+0x157/0x1c0 fs/namespace.c:3075 do_syscall_64+0x15b/0x220 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x63/0xe7 RIP: 0033:0x446769 Code: Bad RIP value. RSP: 002b:00007fc9a0b12da8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446769 RDX: 0000000020000300 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00000000006dbc20 R08: 0000000020000400 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 00000000006dbc2c R13: 0030656c69662f2e R14: 7974697275636573 R15: 00000000006dbd2c INFO: task syz-executor044:5729 blocked for more than 140 seconds. Not tainted 4.18.0-rc8+ #34 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor044 D59824 5729 4554 0x00000004 Call Trace: context_switch kernel/sched/core.c:2857 [inline] __schedule+0x667/0x770 kernel/sched/core.c:3507 schedule+0x1bc/0x2d0 kernel/sched/core.c:3551 __rwsem_down_write_failed_common+0xb51/0x13d0 kernel/locking/rwsem-xadd.c:566 rwsem_down_write_failed+0x2c/0x30 kernel/locking/rwsem-xadd.c:595 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0x5c/0xc0 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:715 [inline] lock_mount+0xbb/0x8c0 fs/namespace.c:2088 do_add_mount+0x7e/0x770 fs/namespace.c:2465 do_new_mount fs/namespace.c:2532 [inline] do_mount+0x281d/0x4f90 fs/namespace.c:2848 ksys_mount+0x32e/0x3d0 fs/namespace.c:3064 __do_sys_mount fs/namespace.c:3078 [inline] __se_sys_mount fs/namespace.c:3075 [inline] __x64_sys_mount+0x157/0x1c0 fs/namespace.c:3075 do_syscall_64+0x15b/0x220 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x63/0xe7 RIP: 0033:0x446769 Code: Bad RIP value. RSP: 002b:00007fc9a0b12da8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446769 RDX: 0000000020000300 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00000000006dbc20 R08: 0000000020000400 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 00000000006dbc2c R13: 0030656c69662f2e R14: 7974697275636573 R15: 00000000006dbd2c INFO: task syz-executor044:5732 blocked for more than 140 seconds. Not tainted 4.18.0-rc8+ #34 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor044 D59800 5732 4557 0x00000004 Call Trace: context_switch kernel/sched/core.c:2857 [inline] __schedule+0x667/0x770 kernel/sched/core.c:3507 schedule+0x1bc/0x2d0 kernel/sched/core.c:3551 __rwsem_down_write_failed_common+0xb51/0x13d0 kernel/locking/rwsem-xadd.c:566 rwsem_down_write_failed+0x2c/0x30 kernel/locking/rwsem-xadd.c:595 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0x5c/0xc0 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:715 [inline] lock_mount+0xbb/0x8c0 fs/namespace.c:2088 do_add_mount+0x7e/0x770 fs/namespace.c:2465 do_new_mount fs/namespace.c:2532 [inline] do_mount+0x281d/0x4f90 fs/namespace.c:2848 ksys_mount+0x32e/0x3d0 fs/namespace.c:3064 __do_sys_mount fs/namespace.c:3078 [inline] __se_sys_mount fs/namespace.c:3075 [inline] __x64_sys_mount+0x157/0x1c0 fs/namespace.c:3075 do_syscall_64+0x15b/0x220 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x63/0xe7 RIP: 0033:0x446769 Code: Bad RIP value. RSP: 002b:00007fc9a0b12da8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446769 RDX: 0000000020000300 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00000000006dbc20 R08: 0000000020000400 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 00000000006dbc2c R13: 0030656c69662f2e R14: 7974697275636573 R15: 00000000006dbd2c INFO: task syz-executor044:5733 blocked for more than 140 seconds. Not tainted 4.18.0-rc8+ #34 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor044 D59480 5733 4562 0x00000004 Call Trace: context_switch kernel/sched/core.c:2857 [inline] __schedule+0x667/0x770 kernel/sched/core.c:3507 schedule+0x1bc/0x2d0 kernel/sched/core.c:3551 __rwsem_down_write_failed_common+0xb51/0x13d0 kernel/locking/rwsem-xadd.c:566 rwsem_down_write_failed+0x2c/0x30 kernel/locking/rwsem-xadd.c:595 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0x5c/0xc0 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:715 [inline] lock_mount+0xbb/0x8c0 fs/namespace.c:2088 do_add_mount+0x7e/0x770 fs/namespace.c:2465 do_new_mount fs/namespace.c:2532 [inline] do_mount+0x281d/0x4f90 fs/namespace.c:2848 ksys_mount+0x32e/0x3d0 fs/namespace.c:3064 __do_sys_mount fs/namespace.c:3078 [inline] __se_sys_mount fs/namespace.c:3075 [inline] __x64_sys_mount+0x157/0x1c0 fs/namespace.c:3075 do_syscall_64+0x15b/0x220 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x63/0xe7 RIP: 0033:0x446769 Code: Bad RIP value. RSP: 002b:00007fc9a0b12da8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446769 RDX: 0000000020000300 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00000000006dbc20 R08: 0000000020000400 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 00000000006dbc2c R13: 0030656c69662f2e R14: 7974697275636573 R15: 00000000006dbd2c NMI backtrace for cpu 0 CPU: 0 PID: 680 Comm: khungtaskd Not tainted 4.18.0-rc8+ #34 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+0x17c/0x1c0 lib/dump_stack.c:113 nmi_cpu_backtrace lib/nmi_backtrace.c:103 [inline] nmi_trigger_cpumask_backtrace+0x255/0x4b0 lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x2c/0x40 arch/x86/kernel/apic/hw_nmi.c:38 trigger_all_cpu_backtrace+0x2b/0x30 include/linux/nmi.h:138 check_hung_uninterruptible_tasks kernel/hung_task.c:196 [inline] watchdog+0x1107/0x1130 kernel/hung_task.c:252 kthread+0x44d/0x480 kernel/kthread.c:247 ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:415 Sending NMI from CPU 0 to CPUs 1: ------------[ cut here ]------------ kernel BUG at mm/kmsan/kmsan_entry.c:81! invalid opcode: 0000 [#1] SMP PTI CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.18.0-rc8+ #34 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kmsan_nmi_enter+0x42/0x70 mm/kmsan/kmsan_entry.c:80 Code: 00 74 27 65 8b 04 25 80 90 03 00 83 c0 01 83 f8 08 7d 27 65 89 04 25 80 90 03 00 65 c6 04 25 15 6e 0b 00 ff c3 0f 0b 90 eb fe <0f> 0b 66 90 66 2e 0f 1f 84 00 00 00 00 00 eb fe 0f 0b 66 90 66 2e RSP: 0018:fffffe0000049ea8 EFLAGS: 00010046 RAX: 0000000080000000 RBX: 0000000000000001 RCX: 00000000c0000101 RDX: 00000000ffff8802 RSI: ffffffff88c0136c RDI: ffffea00003a7dc0 RBP: fffffe0000049ef9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 00000001ac570000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000006db0c0 CR3: 00000001ac570000 CR4: 00000000001406e0 Call Trace: Modules linked in: Dumping ftrace buffer: (ftrace buffer empty) ---[ end trace 00f51c214d64221e ]--- RIP: 0010:kmsan_nmi_enter+0x42/0x70 mm/kmsan/kmsan_entry.c:80 Code: 00 74 27 65 8b 04 25 80 90 03 00 83 c0 01 83 f8 08 7d 27 65 89 04 25 80 90 03 00 65 c6 04 25 15 6e 0b 00 ff c3 0f 0b 90 eb fe <0f> 0b 66 90 66 2e 0f 1f 84 00 00 00 00 00 eb fe 0f 0b 66 90 66 2e RSP: 0018:fffffe0000049ea8 EFLAGS: 00010046 RAX: 0000000080000000 RBX: 0000000000000001 RCX: 00000000c0000101 RDX: 00000000ffff8802 RSI: ffffffff88c0136c RDI: ffffea00003a7dc0 RBP: fffffe0000049ef9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 00000001ac570000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000006db0c0 CR3: 00000001ac570000 CR4: 00000000001406e0