[ 10.995439][ T235] tc (235) used greatest stack depth: 24808 bytes left [ 10.995456][ T235] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.995458][ T235] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 235, name: tc [ 10.995460][ T235] preempt_count: 2, expected: 0 [ 10.995461][ T235] RCU nest depth: 0, expected: 0 [ 10.995462][ T235] locks held by tc/235: 5, last CPU#1: [ 10.995465][ T235] #0: ffffffffb78027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.995477][ T235] #1: ffffffffb7969cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.995482][ T235] #2: ffffffffb7969d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.995485][ T235] #3: ffffffffb7889660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.995489][ T235] #4: ffffffffb7889560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.995493][ T235] irq event stamp: 25750 [ 10.995494][ T235] hardirqs last enabled at (25749): [] __down_trylock_console_sem+0x86/0xa0 [ 10.995497][ T235] hardirqs last disabled at (25750): [] console_emit_next_record+0x3d4/0x4c0 [ 10.995499][ T235] softirqs last enabled at (25744): [] handle_softirqs+0x67c/0x900 [ 10.995501][ T235] softirqs last disabled at (25739): [] __irq_exit_rcu+0x145/0x1c0 [ 10.995504][ T235] Preemption disabled at: [ 10.995504][ T235] [<0000000000000000>] 0x0 [ 10.995511][ T235] CPU: 1 UID: 0 PID: 235 Comm: tc Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.995515][ T235] Tainted: [W]=WARN [ 10.995516][ T235] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.995517][ T235] Call Trace: [ 10.995519][ T235] [ 10.995520][ T235] dump_stack_lvl+0x6f/0xa0 [ 10.995526][ T235] __might_resched.cold+0x1fe/0x2c1 [ 10.995531][ T235] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.995534][ T235] ? __kmalloc_noprof+0xdb/0x760 [ 10.995539][ T235] __kmalloc_noprof+0x443/0x760 [ 10.995542][ T235] ? alloc_buf.isra.0+0x4b/0x260 [ 10.995548][ T235] ? do_raw_spin_unlock+0x59/0x250 [ 10.995551][ T235] alloc_buf.isra.0+0x4b/0x260 [ 10.995554][ T235] put_chars+0x1e1/0x2f0 [ 10.995557][ T235] ? __send_to_port+0x420/0x420 [ 10.995559][ T235] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.995563][ T235] ? validate_chain+0x38b/0xc20 [ 10.995568][ T235] hvc_console_print+0x292/0x780 [ 10.995575][ T235] ? hvc_write+0x3a0/0x3a0 [ 10.995577][ T235] ? rcu_is_watching+0x16/0xd0 [ 10.995579][ T235] ? lock_acquire+0x13c/0x160 [ 10.995583][ T235] console_emit_next_record+0x22f/0x4c0 [ 10.995587][ T235] ? devkmsg_read+0x4b0/0x4b0 [ 10.995588][ T235] ? console_flush_one_record+0x106/0x710 [ 10.995591][ T235] ? rcu_is_watching+0x16/0xd0 [ 10.995593][ T235] ? lock_acquire+0x13c/0x160 [ 10.995597][ T235] console_flush_one_record+0x46f/0x710 [ 10.995600][ T235] ? console_emit_next_record+0x4c0/0x4c0 [ 10.995602][ T235] ? __lock_acquire+0x518/0xc20 [ 10.995607][ T235] console_unlock+0xee/0x1f0 [ 10.995609][ T235] ? console_flush_one_record+0x710/0x710 [ 10.995611][ T235] ? rcu_is_watching+0x16/0xd0 [ 10.995613][ T235] ? lock_acquire+0x60/0x160 [ 10.995616][ T235] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.995618][ T235] ? vprintk_emit+0x320/0x3e0 [ 10.995621][ T235] vprintk_emit+0x37c/0x3e0 [ 10.995625][ T235] ? wake_up_klogd_work_func+0x90/0x90 [ 10.995627][ T235] ? __lock_acquire+0x518/0xc20 [ 10.995631][ T235] _printk+0xc7/0x100 [ 10.995635][ T235] ? snapshot_read.cold+0x21/0x21 [ 10.995638][ T235] ? do_raw_spin_lock+0x131/0x280 [ 10.995641][ T235] ? __rwlock_init+0x150/0x150 [ 10.995645][ T235] ? do_raw_spin_lock+0x131/0x280 [ 10.995648][ T235] do_exit.cold+0x82/0x9c [ 10.995651][ T235] ? exit_notify+0x890/0x890 [ 10.995653][ T235] ? __lock_release.isra.0+0x69/0x1a0 [ 10.995655][ T235] ? rcu_is_watching+0x16/0xd0 [ 10.995659][ T235] do_group_exit+0xb8/0x370 [ 10.995662][ T235] __x64_sys_exit_group+0x3c/0x50 [ 10.995664][ T235] x64_sys_call+0x1567/0x1570 [ 10.995667][ T235] do_syscall_64+0xff/0x530 [ 10.995671][ T235] ? exc_page_fault+0xee/0x100 [ 10.995674][ T235] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.995676][ T235] RIP: 0033:0x7f46871231b8 [ 10.995679][ T235] Code: Unable to access opcode bytes at 0x7f468712318e. [ 10.995680][ T235] RSP: 002b:00007ffd5bdb57b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.995682][ T235] RAX: ffffffffffffffda RBX: 00007f4687253f88 RCX: 00007f46871231b8 [ 10.995683][ T235] RDX: 00007f4686e6e588 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.995684][ T235] RBP: 00007ffd5bdb5810 R08: 0000000000000000 R09: 0000000000000000 [ 10.995685][ T235] R10: 00007ffd5bdb55b0 R11: 0000000000000246 R12: 0000000000000001 [ 10.995686][ T235] R13: 0000000000000000 R14: 00007f4687252680 R15: 00007f4687253fa0 [ 10.995692][ T235] [ 11.386071][ T203] packetdrill (203) used greatest stack depth: 24392 bytes left