INFO: task syz-executor129:3695 can't die for more than 143 seconds. task:syz-executor129 state:D stack:27464 pid: 3695 ppid: 3621 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5043 [inline] __schedule+0xa94/0x4910 kernel/sched/core.c:6352 schedule+0xd2/0x1f0 kernel/sched/core.c:6424 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1857 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common+0x2af/0x360 kernel/sched/completion.c:106 __flush_work+0x56c/0xb10 kernel/workqueue.c:3097 __cancel_work_timer+0x3f9/0x570 kernel/workqueue.c:3184 p9_conn_destroy net/9p/trans_fd.c:884 [inline] p9_fd_close+0x29c/0x520 net/9p/trans_fd.c:919 p9_client_destroy+0xbe/0x370 net/9p/client.c:1089 v9fs_session_close+0x45/0x2d0 fs/9p/v9fs.c:504 v9fs_kill_super+0x49/0x90 fs/9p/vfs_super.c:226 deactivate_locked_super+0x94/0x160 fs/super.c:332 v9fs_mount+0x69f/0xa80 fs/9p/vfs_super.c:207 legacy_get_tree+0x105/0x220 fs/fs_context.c:610 vfs_get_tree+0x89/0x2f0 fs/super.c:1497 do_new_mount fs/namespace.c:3025 [inline] path_mount+0x1320/0x1fa0 fs/namespace.c:3355 do_mount fs/namespace.c:3368 [inline] __do_sys_mount fs/namespace.c:3576 [inline] __se_sys_mount fs/namespace.c:3553 [inline] __x64_sys_mount+0x27f/0x300 fs/namespace.c:3553 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f713f680cb9 RSP: 002b:00007f713f632308 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f713f7084c8 RCX: 00007f713f680cb9 RDX: 0000000020000100 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00007f713f7084c0 R08: 0000000020000200 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f713f7084cc R13: 0030656c69662f2e R14: 64663d736e617274 R15: 0000000000022000 INFO: task syz-executor129:3695 blocked for more than 143 seconds. Not tainted 5.17.0-rc6-next-20220303-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor129 state:D stack:27464 pid: 3695 ppid: 3621 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5043 [inline] __schedule+0xa94/0x4910 kernel/sched/core.c:6352 schedule+0xd2/0x1f0 kernel/sched/core.c:6424 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1857 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common+0x2af/0x360 kernel/sched/completion.c:106 __flush_work+0x56c/0xb10 kernel/workqueue.c:3097 __cancel_work_timer+0x3f9/0x570 kernel/workqueue.c:3184 p9_conn_destroy net/9p/trans_fd.c:884 [inline] p9_fd_close+0x29c/0x520 net/9p/trans_fd.c:919 p9_client_destroy+0xbe/0x370 net/9p/client.c:1089 v9fs_session_close+0x45/0x2d0 fs/9p/v9fs.c:504 v9fs_kill_super+0x49/0x90 fs/9p/vfs_super.c:226 deactivate_locked_super+0x94/0x160 fs/super.c:332 v9fs_mount+0x69f/0xa80 fs/9p/vfs_super.c:207 legacy_get_tree+0x105/0x220 fs/fs_context.c:610 vfs_get_tree+0x89/0x2f0 fs/super.c:1497 do_new_mount fs/namespace.c:3025 [inline] path_mount+0x1320/0x1fa0 fs/namespace.c:3355 do_mount fs/namespace.c:3368 [inline] __do_sys_mount fs/namespace.c:3576 [inline] __se_sys_mount fs/namespace.c:3553 [inline] __x64_sys_mount+0x27f/0x300 fs/namespace.c:3553 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f713f680cb9 RSP: 002b:00007f713f632308 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f713f7084c8 RCX: 00007f713f680cb9 RDX: 0000000020000100 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00007f713f7084c0 R08: 0000000020000200 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f713f7084cc R13: 0030656c69662f2e R14: 64663d736e617274 R15: 0000000000022000 INFO: task syz-executor129:3725 can't die for more than 144 seconds. task:syz-executor129 state:D stack:27464 pid: 3725 ppid: 3625 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5043 [inline] __schedule+0xa94/0x4910 kernel/sched/core.c:6352 schedule+0xd2/0x1f0 kernel/sched/core.c:6424 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1857 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common+0x2af/0x360 kernel/sched/completion.c:106 __flush_work+0x56c/0xb10 kernel/workqueue.c:3097 __cancel_work_timer+0x3f9/0x570 kernel/workqueue.c:3184 p9_conn_destroy net/9p/trans_fd.c:884 [inline] p9_fd_close+0x29c/0x520 net/9p/trans_fd.c:919 p9_client_destroy+0xbe/0x370 net/9p/client.c:1089 v9fs_session_close+0x45/0x2d0 fs/9p/v9fs.c:504 v9fs_kill_super+0x49/0x90 fs/9p/vfs_super.c:226 deactivate_locked_super+0x94/0x160 fs/super.c:332 v9fs_mount+0x69f/0xa80 fs/9p/vfs_super.c:207 legacy_get_tree+0x105/0x220 fs/fs_context.c:610 vfs_get_tree+0x89/0x2f0 fs/super.c:1497 do_new_mount fs/namespace.c:3025 [inline] path_mount+0x1320/0x1fa0 fs/namespace.c:3355 do_mount fs/namespace.c:3368 [inline] __do_sys_mount fs/namespace.c:3576 [inline] __se_sys_mount fs/namespace.c:3553 [inline] __x64_sys_mount+0x27f/0x300 fs/namespace.c:3553 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f713f680cb9 RSP: 002b:00007f713f632308 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f713f7084c8 RCX: 00007f713f680cb9 RDX: 0000000020000100 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00007f713f7084c0 R08: 0000000020000200 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f713f7084cc R13: 0030656c69662f2e R14: 64663d736e617274 R15: 0000000000022000 INFO: task syz-executor129:3725 blocked for more than 144 seconds. Not tainted 5.17.0-rc6-next-20220303-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor129 state:D stack:27464 pid: 3725 ppid: 3625 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5043 [inline] __schedule+0xa94/0x4910 kernel/sched/core.c:6352 schedule+0xd2/0x1f0 kernel/sched/core.c:6424 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1857 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common+0x2af/0x360 kernel/sched/completion.c:106 __flush_work+0x56c/0xb10 kernel/workqueue.c:3097 __cancel_work_timer+0x3f9/0x570 kernel/workqueue.c:3184 p9_conn_destroy net/9p/trans_fd.c:884 [inline] p9_fd_close+0x29c/0x520 net/9p/trans_fd.c:919 p9_client_destroy+0xbe/0x370 net/9p/client.c:1089 v9fs_session_close+0x45/0x2d0 fs/9p/v9fs.c:504 v9fs_kill_super+0x49/0x90 fs/9p/vfs_super.c:226 deactivate_locked_super+0x94/0x160 fs/super.c:332 v9fs_mount+0x69f/0xa80 fs/9p/vfs_super.c:207 legacy_get_tree+0x105/0x220 fs/fs_context.c:610 vfs_get_tree+0x89/0x2f0 fs/super.c:1497 do_new_mount fs/namespace.c:3025 [inline] path_mount+0x1320/0x1fa0 fs/namespace.c:3355 do_mount fs/namespace.c:3368 [inline] __do_sys_mount fs/namespace.c:3576 [inline] __se_sys_mount fs/namespace.c:3553 [inline] __x64_sys_mount+0x27f/0x300 fs/namespace.c:3553 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f713f680cb9 RSP: 002b:00007f713f632308 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f713f7084c8 RCX: 00007f713f680cb9 RDX: 0000000020000100 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00007f713f7084c0 R08: 0000000020000200 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f713f7084cc R13: 0030656c69662f2e R14: 64663d736e617274 R15: 0000000000022000 INFO: task syz-executor129:3900 can't die for more than 144 seconds. task:syz-executor129 state:D stack:27552 pid: 3900 ppid: 3619 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5043 [inline] __schedule+0xa94/0x4910 kernel/sched/core.c:6352 schedule+0xd2/0x1f0 kernel/sched/core.c:6424 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1857 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common+0x2af/0x360 kernel/sched/completion.c:106 __flush_work+0x56c/0xb10 kernel/workqueue.c:3097 __cancel_work_timer+0x3f9/0x570 kernel/workqueue.c:3184 p9_conn_destroy net/9p/trans_fd.c:884 [inline] p9_fd_close+0x29c/0x520 net/9p/trans_fd.c:919 p9_client_destroy+0xbe/0x370 net/9p/client.c:1089 v9fs_session_close+0x45/0x2d0 fs/9p/v9fs.c:504 v9fs_kill_super+0x49/0x90 fs/9p/vfs_super.c:226 deactivate_locked_super+0x94/0x160 fs/super.c:332 v9fs_mount+0x69f/0xa80 fs/9p/vfs_super.c:207 legacy_get_tree+0x105/0x220 fs/fs_context.c:610 vfs_get_tree+0x89/0x2f0 fs/super.c:1497 do_new_mount fs/namespace.c:3025 [inline] path_mount+0x1320/0x1fa0 fs/namespace.c:3355 do_mount fs/namespace.c:3368 [inline] __do_sys_mount fs/namespace.c:3576 [inline] __se_sys_mount fs/namespace.c:3553 [inline] __x64_sys_mount+0x27f/0x300 fs/namespace.c:3553 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f713f680cb9 RSP: 002b:00007f713f632308 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f713f7084c8 RCX: 00007f713f680cb9 RDX: 0000000020000100 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00007f713f7084c0 R08: 0000000020000200 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f713f7084cc R13: 0030656c69662f2e R14: 64663d736e617274 R15: 0000000000022000 INFO: task syz-executor129:3900 blocked for more than 145 seconds. Not tainted 5.17.0-rc6-next-20220303-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor129 state:D stack:27552 pid: 3900 ppid: 3619 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5043 [inline] __schedule+0xa94/0x4910 kernel/sched/core.c:6352 schedule+0xd2/0x1f0 kernel/sched/core.c:6424 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1857 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common+0x2af/0x360 kernel/sched/completion.c:106 __flush_work+0x56c/0xb10 kernel/workqueue.c:3097 __cancel_work_timer+0x3f9/0x570 kernel/workqueue.c:3184 p9_conn_destroy net/9p/trans_fd.c:884 [inline] p9_fd_close+0x29c/0x520 net/9p/trans_fd.c:919 p9_client_destroy+0xbe/0x370 net/9p/client.c:1089 v9fs_session_close+0x45/0x2d0 fs/9p/v9fs.c:504 v9fs_kill_super+0x49/0x90 fs/9p/vfs_super.c:226 deactivate_locked_super+0x94/0x160 fs/super.c:332 v9fs_mount+0x69f/0xa80 fs/9p/vfs_super.c:207 legacy_get_tree+0x105/0x220 fs/fs_context.c:610 vfs_get_tree+0x89/0x2f0 fs/super.c:1497 do_new_mount fs/namespace.c:3025 [inline] path_mount+0x1320/0x1fa0 fs/namespace.c:3355 do_mount fs/namespace.c:3368 [inline] __do_sys_mount fs/namespace.c:3576 [inline] __se_sys_mount fs/namespace.c:3553 [inline] __x64_sys_mount+0x27f/0x300 fs/namespace.c:3553 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f713f680cb9 RSP: 002b:00007f713f632308 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f713f7084c8 RCX: 00007f713f680cb9 RDX: 0000000020000100 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00007f713f7084c0 R08: 0000000020000200 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f713f7084cc R13: 0030656c69662f2e R14: 64663d736e617274 R15: 0000000000022000 INFO: task syz-executor129:3947 can't die for more than 145 seconds. task:syz-executor129 state:D stack:27464 pid: 3947 ppid: 3622 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5043 [inline] __schedule+0xa94/0x4910 kernel/sched/core.c:6352 schedule+0xd2/0x1f0 kernel/sched/core.c:6424 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1857 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common+0x2af/0x360 kernel/sched/completion.c:106 __flush_work+0x56c/0xb10 kernel/workqueue.c:3097 __cancel_work_timer+0x3f9/0x570 kernel/workqueue.c:3184 p9_conn_destroy net/9p/trans_fd.c:884 [inline] p9_fd_close+0x29c/0x520 net/9p/trans_fd.c:919 p9_client_destroy+0xbe/0x370 net/9p/client.c:1089 v9fs_session_close+0x45/0x2d0 fs/9p/v9fs.c:504 v9fs_kill_super+0x49/0x90 fs/9p/vfs_super.c:226 deactivate_locked_super+0x94/0x160 fs/super.c:332 v9fs_mount+0x69f/0xa80 fs/9p/vfs_super.c:207 legacy_get_tree+0x105/0x220 fs/fs_context.c:610 vfs_get_tree+0x89/0x2f0 fs/super.c:1497 do_new_mount fs/namespace.c:3025 [inline] path_mount+0x1320/0x1fa0 fs/namespace.c:3355 do_mount fs/namespace.c:3368 [inline] __do_sys_mount fs/namespace.c:3576 [inline] __se_sys_mount fs/namespace.c:3553 [inline] __x64_sys_mount+0x27f/0x300 fs/namespace.c:3553 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f713f680cb9 RSP: 002b:00007f713f632308 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f713f7084c8 RCX: 00007f713f680cb9 RDX: 0000000020000100 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00007f713f7084c0 R08: 0000000020000200 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f713f7084cc R13: 0030656c69662f2e R14: 64663d736e617274 R15: 0000000000022000 INFO: task syz-executor129:3947 blocked for more than 145 seconds. Not tainted 5.17.0-rc6-next-20220303-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor129 state:D stack:27464 pid: 3947 ppid: 3622 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5043 [inline] __schedule+0xa94/0x4910 kernel/sched/core.c:6352 schedule+0xd2/0x1f0 kernel/sched/core.c:6424 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1857 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common+0x2af/0x360 kernel/sched/completion.c:106 __flush_work+0x56c/0xb10 kernel/workqueue.c:3097 __cancel_work_timer+0x3f9/0x570 kernel/workqueue.c:3184 p9_conn_destroy net/9p/trans_fd.c:884 [inline] p9_fd_close+0x29c/0x520 net/9p/trans_fd.c:919 p9_client_destroy+0xbe/0x370 net/9p/client.c:1089 v9fs_session_close+0x45/0x2d0 fs/9p/v9fs.c:504 v9fs_kill_super+0x49/0x90 fs/9p/vfs_super.c:226 deactivate_locked_super+0x94/0x160 fs/super.c:332 v9fs_mount+0x69f/0xa80 fs/9p/vfs_super.c:207 legacy_get_tree+0x105/0x220 fs/fs_context.c:610 vfs_get_tree+0x89/0x2f0 fs/super.c:1497 do_new_mount fs/namespace.c:3025 [inline] path_mount+0x1320/0x1fa0 fs/namespace.c:3355 do_mount fs/namespace.c:3368 [inline] __do_sys_mount fs/namespace.c:3576 [inline] __se_sys_mount fs/namespace.c:3553 [inline] __x64_sys_mount+0x27f/0x300 fs/namespace.c:3553 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f713f680cb9 RSP: 002b:00007f713f632308 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f713f7084c8 RCX: 00007f713f680cb9 RDX: 0000000020000100 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00007f713f7084c0 R08: 0000000020000200 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f713f7084cc R13: 0030656c69662f2e R14: 64663d736e617274 R15: 0000000000022000 INFO: task syz-executor129:8502 can't die for more than 146 seconds. task:syz-executor129 state:D stack:27400 pid: 8502 ppid: 3618 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5043 [inline] __schedule+0xa94/0x4910 kernel/sched/core.c:6352 schedule+0xd2/0x1f0 kernel/sched/core.c:6424 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1857 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common+0x2af/0x360 kernel/sched/completion.c:106 __flush_work+0x56c/0xb10 kernel/workqueue.c:3097 __cancel_work_timer+0x3f9/0x570 kernel/workqueue.c:3184 p9_conn_destroy net/9p/trans_fd.c:884 [inline] p9_fd_close+0x29c/0x520 net/9p/trans_fd.c:919 p9_client_destroy+0xbe/0x370 net/9p/client.c:1089 v9fs_session_close+0x45/0x2d0 fs/9p/v9fs.c:504 v9fs_kill_super+0x49/0x90 fs/9p/vfs_super.c:226 deactivate_locked_super+0x94/0x160 fs/super.c:332 v9fs_mount+0x69f/0xa80 fs/9p/vfs_super.c:207 legacy_get_tree+0x105/0x220 fs/fs_context.c:610 vfs_get_tree+0x89/0x2f0 fs/super.c:1497 do_new_mount fs/namespace.c:3025 [inline] path_mount+0x1320/0x1fa0 fs/namespace.c:3355 do_mount fs/namespace.c:3368 [inline] __do_sys_mount fs/namespace.c:3576 [inline] __se_sys_mount fs/namespace.c:3553 [inline] __x64_sys_mount+0x27f/0x300 fs/namespace.c:3553 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f713f680cb9 RSP: 002b:00007f713f632308 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f713f7084c8 RCX: 00007f713f680cb9 RDX: 0000000020000100 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00007f713f7084c0 R08: 0000000020000200 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f713f7084cc R13: 0030656c69662f2e R14: 64663d736e617274 R15: 0000000000022000 INFO: task syz-executor129:8502 blocked for more than 146 seconds. Not tainted 5.17.0-rc6-next-20220303-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor129 state:D stack:27400 pid: 8502 ppid: 3618 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5043 [inline] __schedule+0xa94/0x4910 kernel/sched/core.c:6352 schedule+0xd2/0x1f0 kernel/sched/core.c:6424 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1857 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common+0x2af/0x360 kernel/sched/completion.c:106 __flush_work+0x56c/0xb10 kernel/workqueue.c:3097 __cancel_work_timer+0x3f9/0x570 kernel/workqueue.c:3184 p9_conn_destroy net/9p/trans_fd.c:884 [inline] p9_fd_close+0x29c/0x520 net/9p/trans_fd.c:919 p9_client_destroy+0xbe/0x370 net/9p/client.c:1089 v9fs_session_close+0x45/0x2d0 fs/9p/v9fs.c:504 v9fs_kill_super+0x49/0x90 fs/9p/vfs_super.c:226 deactivate_locked_super+0x94/0x160 fs/super.c:332 v9fs_mount+0x69f/0xa80 fs/9p/vfs_super.c:207 legacy_get_tree+0x105/0x220 fs/fs_context.c:610 vfs_get_tree+0x89/0x2f0 fs/super.c:1497 do_new_mount fs/namespace.c:3025 [inline] path_mount+0x1320/0x1fa0 fs/namespace.c:3355 do_mount fs/namespace.c:3368 [inline] __do_sys_mount fs/namespace.c:3576 [inline] __se_sys_mount fs/namespace.c:3553 [inline] __x64_sys_mount+0x27f/0x300 fs/namespace.c:3553 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f713f680cb9 RSP: 002b:00007f713f632308 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f713f7084c8 RCX: 00007f713f680cb9 RDX: 0000000020000100 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00007f713f7084c0 R08: 0000000020000200 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f713f7084cc R13: 0030656c69662f2e R14: 64663d736e617274 R15: 0000000000022000 Showing all locks held in the system: 2 locks held by kworker/0:0/6: #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260 #1: ffffc900000b7da8 ((work_completion)(&m->rq)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264 1 lock held by khungtaskd/28: #0: ffffffff8bd858e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6498 2 locks held by kworker/1:2/141: #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260 #1: ffffc9000212fda8 ((work_completion)(&m->rq)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264 2 locks held by kworker/0:3/3258: #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260 #1: ffffc9000342fda8 ((work_completion)(&m->rq)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264 2 locks held by getty/3278: #0: ffff888144b69098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244 #1: ffffc90002e662e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcf0/0x1230 drivers/tty/n_tty.c:2075 2 locks held by kworker/0:1/3638: #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260 #1: ffffc90003bffda8 ((work_completion)(&m->rq)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264 2 locks held by kworker/0:4/3661: #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260 #1: ffffc90003b7fda8 ((work_completion)(&m->rq)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264 2 locks held by kworker/1:0/3673: #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline] #0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260 #1: ffffc90003cafda8 ((work_completion)(&m->rq)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 28 Comm: khungtaskd Not tainted 5.17.0-rc6-next-20220303-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x1e6/0x230 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:256 [inline] watchdog+0xcb7/0xed0 kernel/hung_task.c:413 kthread+0x2e9/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 3623 Comm: syz-executor129 Not tainted 5.17.0-rc6-next-20220303-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:native_apic_mem_write+0x8/0x10 arch/x86/include/asm/apic.h:110 Code: 00 00 be 01 00 00 00 e9 86 8d 2e 00 66 0f 1f 44 00 00 b8 01 00 00 00 c3 cc cc cc cc cc cc cc cc cc cc 89 ff 89 b7 00 c0 5f ff 0f 1f 80 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 53 89 fb 48 RSP: 0018:ffffc90003b0fb38 EFLAGS: 00000046 RAX: dffffc0000000000 RBX: ffffffff8b797ac0 RCX: 0000000000000020 RDX: 1ffffffff16f2f5a RSI: 000000000000ffa1 RDI: 0000000000000380 RBP: ffff8880b9c272c0 R08: 000000000000003f R09: 0000000000000000 R10: ffffffff816ba2c7 R11: 0000000000000001 R12: 000000000000ffa1 R13: 0000000000000020 R14: ffff8880b9c2a600 R15: 0000000000000000 FS: 0000555555912300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f713f6d5e98 CR3: 000000001de07000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: apic_write arch/x86/include/asm/apic.h:394 [inline] lapic_next_event+0x4d/0x80 arch/x86/kernel/apic/apic.c:469 clockevents_program_event+0x254/0x370 kernel/time/clockevents.c:334 tick_program_event+0xac/0x140 kernel/time/tick-oneshot.c:44 __hrtimer_reprogram kernel/time/hrtimer.c:681 [inline] hrtimer_reprogram+0x38c/0x440 kernel/time/hrtimer.c:866 hrtimer_start_range_ns+0x7af/0xa80 kernel/time/hrtimer.c:1299 hrtimer_start_expires include/linux/hrtimer.h:432 [inline] hrtimer_sleeper_start_expires kernel/time/hrtimer.c:1965 [inline] do_nanosleep+0x1e8/0x690 kernel/time/hrtimer.c:2041 hrtimer_nanosleep+0x1f9/0x4a0 kernel/time/hrtimer.c:2097 common_nsleep+0xa2/0xc0 kernel/time/posix-timers.c:1227 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1267 [inline] __se_sys_clock_nanosleep kernel/time/posix-timers.c:1245 [inline] __x64_sys_clock_nanosleep+0x2f4/0x430 kernel/time/posix-timers.c:1245 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f713f6a5f5a Code: 83 ff 03 74 3b 48 83 ec 28 b8 fa ff ff ff 83 ff 02 49 89 ca 0f 44 f8 64 8b 04 25 18 00 00 00 85 c0 75 2d b8 e6 00 00 00 0f 05 <89> c2 f7 da 3d 00 f0 ff ff b8 00 00 00 00 0f 47 c2 48 83 c4 28 c3 RSP: 002b:00007ffe4523b740 EFLAGS: 00000246 ORIG_RAX: 00000000000000e6 RAX: ffffffffffffffda RBX: 00000000000aedea RCX: 00007f713f6a5f5a RDX: 00007ffe4523b780 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00000000000f4240 R08: 00000000000002cf R09: 00007ffe452a5080 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000002094 R13: 00007ffe4523b820 R14: 00007ffe4523b810 R15: 00007ffe4523b7d4 INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.117 msecs ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: be 01 00 00 00 mov $0x1,%esi 7: e9 86 8d 2e 00 jmpq 0x2e8d92 c: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1) 12: b8 01 00 00 00 mov $0x1,%eax 17: c3 retq 18: cc int3 19: cc int3 1a: cc int3 1b: cc int3 1c: cc int3 1d: cc int3 1e: cc int3 1f: cc int3 20: cc int3 21: cc int3 22: 89 ff mov %edi,%edi 24: 89 b7 00 c0 5f ff mov %esi,-0xa04000(%rdi) * 2a: c3 retq <-- trapping instruction 2b: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 32: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 39: fc ff df 3c: 53 push %rbx 3d: 89 fb mov %edi,%ebx 3f: 48 rex.W