[ 13.299881][ T290] bridge (290) used greatest stack depth: 23936 bytes left [ 13.299947][ T290] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 13.299950][ T290] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 290, name: bridge [ 13.299952][ T290] preempt_count: 2, expected: 0 [ 13.299952][ T290] RCU nest depth: 0, expected: 0 [ 13.299953][ T290] locks held by bridge/290: 5, last CPU#1: [ 13.299955][ T290] #0: ffffffffb2a167b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 13.299967][ T290] #1: ffffffffb2b7ddc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 13.299971][ T290] #2: ffffffffb2b7de38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 13.299976][ T290] #3: ffffffffb2a9d760 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 13.299979][ T290] #4: ffffffffb2a9d660 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 13.299983][ T290] irq event stamp: 56764 [ 13.299984][ T290] hardirqs last enabled at (56763): [] irqentry_exit+0x21c/0x790 [ 13.299989][ T290] hardirqs last disabled at (56764): [] console_emit_next_record+0x3d4/0x4c0 [ 13.299991][ T290] softirqs last enabled at (56360): [] handle_softirqs+0x67c/0x900 [ 13.299993][ T290] softirqs last disabled at (56355): [] __irq_exit_rcu+0x145/0x1c0 [ 13.299995][ T290] Preemption disabled at: [ 13.299996][ T290] [<0000000000000000>] 0x0 [ 13.300003][ T290] CPU: 1 UID: 0 PID: 290 Comm: bridge Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 13.300006][ T290] Tainted: [W]=WARN [ 13.300007][ T290] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.300009][ T290] Call Trace: [ 13.300011][ T290] [ 13.300013][ T290] dump_stack_lvl+0x6f/0xa0 [ 13.300019][ T290] __might_resched.cold+0x1fe/0x2c1 [ 13.300023][ T290] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 13.300027][ T290] ? __kmalloc_noprof+0xdb/0x760 [ 13.300031][ T290] __kmalloc_noprof+0x443/0x760 [ 13.300033][ T290] ? alloc_buf.isra.0+0x4b/0x260 [ 13.300040][ T290] ? do_raw_spin_unlock+0x59/0x250 [ 13.300043][ T290] alloc_buf.isra.0+0x4b/0x260 [ 13.300046][ T290] put_chars+0x1e1/0x2f0 [ 13.300048][ T290] ? __send_to_port+0x420/0x420 [ 13.300051][ T290] ? validate_chain+0x38b/0xc20 [ 13.300056][ T290] hvc_console_print+0x292/0x780 [ 13.300063][ T290] ? hvc_write+0x3a0/0x3a0 [ 13.300066][ T290] ? rcu_is_watching+0x16/0xd0 [ 13.300068][ T290] ? lock_acquire+0x13c/0x160 [ 13.300072][ T290] console_emit_next_record+0x22f/0x4c0 [ 13.300076][ T290] ? devkmsg_read+0x4b0/0x4b0 [ 13.300078][ T290] ? console_flush_one_record+0x106/0x710 [ 13.300081][ T290] ? rcu_is_watching+0x16/0xd0 [ 13.300082][ T290] ? lock_acquire+0x13c/0x160 [ 13.300086][ T290] console_flush_one_record+0x46f/0x710 [ 13.300090][ T290] ? console_emit_next_record+0x4c0/0x4c0 [ 13.300092][ T290] ? __lock_acquire+0x518/0xc20 [ 13.300097][ T290] console_unlock+0xee/0x1f0 [ 13.300100][ T290] ? console_flush_one_record+0x710/0x710 [ 13.300102][ T290] ? rcu_is_watching+0x16/0xd0 [ 13.300103][ T290] ? lock_acquire+0xe0/0x160 [ 13.300107][ T290] ? __down_trylock_console_sem+0x5e/0xa0 [ 13.300109][ T290] ? vprintk_emit+0x320/0x3e0 [ 13.300111][ T290] vprintk_emit+0x37c/0x3e0 [ 13.300114][ T290] ? wake_up_klogd_work_func+0x90/0x90 [ 13.300117][ T290] ? __lock_acquire+0x518/0xc20 [ 13.300120][ T290] _printk+0xc7/0x100 [ 13.300124][ T290] ? snapshot_read.cold+0x21/0x21 [ 13.300126][ T290] ? do_raw_spin_lock+0x131/0x280 [ 13.300129][ T290] ? __rwlock_init+0x150/0x150 [ 13.300133][ T290] ? do_raw_spin_lock+0x131/0x280 [ 13.300135][ T290] do_exit.cold+0x82/0x9c [ 13.300139][ T290] ? exit_notify+0x890/0x890 [ 13.300140][ T290] ? find_held_lock+0x2b/0x80 [ 13.300143][ T290] ? __lock_release.isra.0+0x69/0x1a0 [ 13.300144][ T290] ? __rwlock_init+0x150/0x150 [ 13.300148][ T290] do_group_exit+0xb8/0x370 [ 13.300149][ T290] ? lockdep_hardirqs_on_prepare.part.0+0x9a/0x160 [ 13.300151][ T290] ? lockdep_hardirqs_on+0x91/0x130 [ 13.300153][ T290] ? _raw_spin_unlock_irq+0x28/0x50 [ 13.300155][ T290] ? _raw_spin_unlock_irq+0x33/0x50 [ 13.300157][ T290] get_signal+0x1886/0x1980 [ 13.300160][ T290] ? ___sys_sendmsg+0x1d0/0x1d0 [ 13.300164][ T290] ? new_sync_write+0x33e/0x760 [ 13.300170][ T290] ? ptrace_signal+0x630/0x630 [ 13.300175][ T290] arch_do_signal_or_restart+0xc2/0x3a0 [ 13.300180][ T290] ? get_sigframe_size+0x20/0x20 [ 13.300182][ T290] ? __sys_recvmsg+0x129/0x1d0 [ 13.300187][ T290] ? rcu_is_watching+0x16/0xd0 [ 13.300188][ T290] ? trace_irq_enable.constprop.0+0x9b/0x160 [ 13.300192][ T290] exit_to_user_mode_loop+0xd5/0x5a0 [ 13.300195][ T290] ? rcu_is_watching+0x16/0xd0 [ 13.300197][ T290] do_syscall_64+0x3e3/0x530 [ 13.300200][ T290] ? exc_page_fault+0xee/0x100 [ 13.300203][ T290] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 13.300209][ T290] RIP: 0033:0x7f4a02b1054e [ 13.300211][ T290] Code: Unable to access opcode bytes at 0x7f4a02b10524. [ 13.300212][ T290] RSP: 002b:00007fffc36c9920 EFLAGS: 00000202 ORIG_RAX: 000000000000002f [ 13.300214][ T290] RAX: fffffffffffffe00 RBX: 0000000000000024 RCX: 00007f4a02b1054e [ 13.300216][ T290] RDX: 0000000000000000 RSI: 00007fffc36c99b0 RDI: 0000000000000005 [ 13.300217][ T290] RBP: 00007fffc36c9930 R08: 0000000000000000 R09: 0000000000000000 [ 13.300218][ T290] R10: 0000000000000000 R11: 0000000000000202 R12: 00000000004039d0 [ 13.300218][ T290] R13: 0000000000425380 R14: 00007fffc36cba14 R15: 0000000000000000 [ 13.300225][ T290]