[ 9.815211][ T134] readlink (134) used greatest stack depth: 24840 bytes left [ 9.815234][ T134] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.815237][ T134] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 134, name: readlink [ 9.815239][ T134] preempt_count: 2, expected: 0 [ 9.815240][ T134] RCU nest depth: 0, expected: 0 [ 9.815241][ T134] locks held by readlink/134: 5, last CPU#1: [ 9.815244][ T134] #0: ffffffffb44027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 9.815256][ T134] #1: ffffffffb4569cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.815261][ T134] #2: ffffffffb4569d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.815265][ T134] #3: ffffffffb4489660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.815268][ T134] #4: ffffffffb4489560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 9.815271][ T134] irq event stamp: 21560 [ 9.815272][ T134] hardirqs last enabled at (21559): [] __down_trylock_console_sem+0x86/0xa0 [ 9.815276][ T134] hardirqs last disabled at (21560): [] console_emit_next_record+0x3d4/0x4c0 [ 9.815277][ T134] softirqs last enabled at (19542): [] handle_softirqs+0x67c/0x900 [ 9.815279][ T134] softirqs last disabled at (19425): [] __irq_exit_rcu+0x145/0x1c0 [ 9.815282][ T134] Preemption disabled at: [ 9.815282][ T134] [<0000000000000000>] 0x0 [ 9.815290][ T134] CPU: 1 UID: 0 PID: 134 Comm: readlink Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.815293][ T134] Tainted: [W]=WARN [ 9.815294][ T134] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.815296][ T134] Call Trace: [ 9.815298][ T134] [ 9.815299][ T134] dump_stack_lvl+0x6f/0xa0 [ 9.815305][ T134] __might_resched.cold+0x1fe/0x2c1 [ 9.815309][ T134] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.815312][ T134] ? __kmalloc_noprof+0xdb/0x760 [ 9.815318][ T134] __kmalloc_noprof+0x443/0x760 [ 9.815320][ T134] ? alloc_buf.isra.0+0x4b/0x260 [ 9.815326][ T134] ? do_raw_spin_unlock+0x59/0x250 [ 9.815329][ T134] alloc_buf.isra.0+0x4b/0x260 [ 9.815333][ T134] put_chars+0x1e1/0x2f0 [ 9.815336][ T134] ? __send_to_port+0x420/0x420 [ 9.815337][ T134] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 9.815341][ T134] ? validate_chain+0x38b/0xc20 [ 9.815347][ T134] hvc_console_print+0x292/0x780 [ 9.815354][ T134] ? hvc_write+0x3a0/0x3a0 [ 9.815356][ T134] ? rcu_is_watching+0x16/0xd0 [ 9.815358][ T134] ? lock_acquire+0x13c/0x160 [ 9.815362][ T134] console_emit_next_record+0x22f/0x4c0 [ 9.815366][ T134] ? devkmsg_read+0x4b0/0x4b0 [ 9.815367][ T134] ? console_flush_one_record+0x106/0x710 [ 9.815370][ T134] ? rcu_is_watching+0x16/0xd0 [ 9.815372][ T134] ? lock_acquire+0x13c/0x160 [ 9.815376][ T134] console_flush_one_record+0x46f/0x710 [ 9.815379][ T134] ? console_emit_next_record+0x4c0/0x4c0 [ 9.815381][ T134] ? __lock_acquire+0x518/0xc20 [ 9.815386][ T134] console_unlock+0xee/0x1f0 [ 9.815389][ T134] ? console_flush_one_record+0x710/0x710 [ 9.815390][ T134] ? rcu_is_watching+0x16/0xd0 [ 9.815392][ T134] ? lock_acquire+0x60/0x160 [ 9.815396][ T134] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.815398][ T134] ? vprintk_emit+0x320/0x3e0 [ 9.815401][ T134] vprintk_emit+0x37c/0x3e0 [ 9.815404][ T134] ? wake_up_klogd_work_func+0x90/0x90 [ 9.815407][ T134] ? __lock_acquire+0x518/0xc20 [ 9.815411][ T134] _printk+0xc7/0x100 [ 9.815414][ T134] ? snapshot_read.cold+0x21/0x21 [ 9.815417][ T134] ? do_raw_spin_lock+0x131/0x280 [ 9.815420][ T134] ? __rwlock_init+0x150/0x150 [ 9.815424][ T134] ? do_raw_spin_lock+0x131/0x280 [ 9.815427][ T134] do_exit.cold+0x82/0x9c [ 9.815431][ T134] ? exit_notify+0x890/0x890 [ 9.815432][ T134] ? __lock_release.isra.0+0x69/0x1a0 [ 9.815435][ T134] ? rcu_is_watching+0x16/0xd0 [ 9.815439][ T134] do_group_exit+0xb8/0x370 [ 9.815442][ T134] __x64_sys_exit_group+0x3c/0x50 [ 9.815444][ T134] x64_sys_call+0x1567/0x1570 [ 9.815447][ T134] do_syscall_64+0xff/0x530 [ 9.815452][ T134] ? exc_page_fault+0xee/0x100 [ 9.815457][ T134] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.815460][ T134] RIP: 0033:0x7f9043be31b8 [ 9.815463][ T134] Code: Unable to access opcode bytes at 0x7f9043be318e. [ 9.815465][ T134] RSP: 002b:00007ffe1c68f1b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.815468][ T134] RAX: ffffffffffffffda RBX: 00007f9043d13f88 RCX: 00007f9043be31b8 [ 9.815469][ T134] RDX: 00007f9043b20a48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 9.815470][ T134] RBP: 00007ffe1c68f210 R08: 0000000000000000 R09: 0000000000001010 [ 9.815471][ T134] R10: 00007ffe1c68f070 R11: 0000000000000246 R12: 0000000000000002 [ 9.815472][ T134] R13: 0000000000000000 R14: 00007f9043d12680 R15: 00007f9043d13fa0 [ 9.815479][ T134]