EXT4-fs (loop6): mounted filesystem without journal. Opts: ,errors=continue INFO: task syz-executor.7:15422 blocked for more than 143 seconds. Not tainted 5.10.90 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.7 state:D stack:27952 pid:15422 ppid: 10529 flags:0x10000004 Call Trace: context_switch kernel/sched/core.c:3791 [inline] __schedule+0x848/0x1e80 kernel/sched/core.c:4540 schedule+0xcb/0x270 kernel/sched/core.c:4618 schedule_preempt_disabled+0xc/0x20 kernel/sched/core.c:4677 __mutex_lock_common kernel/locking/mutex.c:1047 [inline] __mutex_lock+0x7c9/0x1250 kernel/locking/mutex.c:1109 perf_event_init_context kernel/events/core.c:12809 [inline] perf_event_init_task+0x252/0x800 kernel/events/core.c:12884 copy_process+0x1721/0x66c0 kernel/fork.c:2079 kernel_clone+0xe7/0xa20 kernel/fork.c:2467 __do_sys_clone+0xc8/0x110 kernel/fork.c:2584 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f0e11dfbf41 RSP: 002b:00007fff07c02b88 EFLAGS: 00000206 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007f0e0f30d700 RCX: 00007f0e11dfbf41 RDX: 00007f0e0f30d9d0 RSI: 00007f0e0f30d2f0 RDI: 00000000003d0f00 RBP: 00007fff07c02dc0 R08: 00007f0e0f30d700 R09: 00007f0e0f30d700 R10: 00007f0e0f30d9d0 R11: 0000000000000206 R12: 00007fff07c02c3e R13: 00007fff07c02c3f R14: 00007f0e0f30d300 R15: 0000000000022000 INFO: task syz-executor.7:15440 blocked for more than 143 seconds. Not tainted 5.10.90 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.7 state:D stack:27952 pid:15440 ppid: 10529 flags:0x10004004 Call Trace: context_switch kernel/sched/core.c:3791 [inline] __schedule+0x848/0x1e80 kernel/sched/core.c:4540 schedule+0xcb/0x270 kernel/sched/core.c:4618 schedule_preempt_disabled+0xc/0x20 kernel/sched/core.c:4677 __mutex_lock_common kernel/locking/mutex.c:1047 [inline] __mutex_lock+0x7c9/0x1250 kernel/locking/mutex.c:1109 mutex_lock_double kernel/events/core.c:11600 [inline] __perf_event_ctx_lock_double kernel/events/core.c:11659 [inline] __do_sys_perf_event_open+0x1244/0x2d00 kernel/events/core.c:11929 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f0e11dfab19 RSP: 002b:00007f0e0f370188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f0e11f0df60 RCX: 00007f0e11dfab19 RDX: 0000000000000000 RSI: 000000000000013d RDI: 0000000020001d80 RBP: 00007f0e11e54f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff07c02c3f R14: 00007f0e0f370300 R15: 0000000000022000 INFO: task syz-executor.7:15535 blocked for more than 143 seconds. Not tainted 5.10.90 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.7 state:D stack:29496 pid:15535 ppid: 10529 flags:0x10000004 Call Trace: context_switch kernel/sched/core.c:3791 [inline] __schedule+0x848/0x1e80 kernel/sched/core.c:4540 schedule+0xcb/0x270 kernel/sched/core.c:4618 schedule_preempt_disabled+0xc/0x20 kernel/sched/core.c:4677 __mutex_lock_common kernel/locking/mutex.c:1047 [inline] __mutex_lock+0x7c9/0x1250 kernel/locking/mutex.c:1109 __do_sys_perf_event_open+0x18b2/0x2d00 kernel/events/core.c:11967 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f0e11dfab19 RSP: 002b:00007f0e0f34f188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f0e11f0e020 RCX: 00007f0e11dfab19 RDX: 0000000000000000 RSI: 000000000000013d RDI: 0000000020001d80 RBP: 00007f0e11e54f6d R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff07c02c3f R14: 00007f0e0f34f300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/22: #0: ffffffff84df6960 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x269 kernel/locking/lockdep.c:6379 2 locks held by in:imklog/181: 1 lock held by syz-executor.7/15422: #0: ffff8880402a20b0 (&ctx->mutex){+.+.}-{3:3}, at: perf_event_init_context kernel/events/core.c:12809 [inline] #0: ffff8880402a20b0 (&ctx->mutex){+.+.}-{3:3}, at: perf_event_init_task+0x252/0x800 kernel/events/core.c:12884 3 locks held by syz-executor.7/15440: #0: ffff88801d2392d8 (&sig->exec_update_lock){++++}-{3:3}, at: __do_sys_perf_event_open+0xfc1/0x2d00 kernel/events/core.c:11911 #1: ffff8880402a20b0 (&ctx->mutex){+.+.}-{3:3}, at: mutex_lock_double kernel/events/core.c:11599 [inline] #1: ffff8880402a20b0 (&ctx->mutex){+.+.}-{3:3}, at: __perf_event_ctx_lock_double kernel/events/core.c:11659 [inline] #1: ffff8880402a20b0 (&ctx->mutex){+.+.}-{3:3}, at: __do_sys_perf_event_open+0x1237/0x2d00 kernel/events/core.c:11929 #2: ffff8880402a20b0 (&ctx->mutex/1){+.+.}-{3:3}, at: mutex_lock_double kernel/events/core.c:11600 [inline] #2: ffff8880402a20b0 (&ctx->mutex/1){+.+.}-{3:3}, at: __perf_event_ctx_lock_double kernel/events/core.c:11659 [inline] #2: ffff8880402a20b0 (&ctx->mutex/1){+.+.}-{3:3}, at: __do_sys_perf_event_open+0x1244/0x2d00 kernel/events/core.c:11929 2 locks held by syz-executor.7/15535: #0: ffff88801d2392d8 (&sig->exec_update_lock){++++}-{3:3}, at: __do_sys_perf_event_open+0xfc1/0x2d00 kernel/events/core.c:11911 #1: ffff8880402a20b0 (&ctx->mutex){+.+.}-{3:3}, at: __do_sys_perf_event_open+0x18b2/0x2d00 kernel/events/core.c:11967 =============================================