[ 9.608885][ T158] netconsole selftest: netcons_w1q1u [ 9.608907][ T158] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 9.608910][ T158] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 158, name: bash [ 9.608911][ T158] preempt_count: 1, expected: 0 [ 9.608912][ T158] RCU nest depth: 0, expected: 0 [ 9.608914][ T158] locks held by bash/158: 4, last CPU#3: [ 9.608916][ T158] #0: ffffffffabd99cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 9.608929][ T158] #1: ffffffffabd99d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 9.608933][ T158] #2: ffffffffabc89660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 9.608937][ T158] #3: ffffffffabc89560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 9.608941][ T158] irq event stamp: 108930 [ 9.608943][ T158] hardirqs last enabled at (108929): [] __down_trylock_console_sem+0x86/0xa0 [ 9.608945][ T158] hardirqs last disabled at (108930): [] console_emit_next_record+0x3f8/0x4f0 [ 9.608947][ T158] softirqs last enabled at (108730): [] restore_fpregs_from_user+0x1cf/0x490 [ 9.608951][ T158] softirqs last disabled at (108728): [] restore_fpregs_from_user+0xc3/0x490 [ 9.608953][ T158] Preemption disabled at: [ 9.608954][ T158] [] vprintk_emit+0x31b/0x3e0 [ 9.608960][ T158] CPU: 3 UID: 0 PID: 158 Comm: bash Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 9.608963][ T158] Tainted: [W]=WARN [ 9.608964][ T158] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.608966][ T158] Call Trace: [ 9.608968][ T158] [ 9.608969][ T158] dump_stack_lvl+0x6f/0xa0 [ 9.608974][ T158] ? vprintk_emit+0x31b/0x3e0 [ 9.608976][ T158] __might_resched.cold+0x1fe/0x2c1 [ 9.608981][ T158] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 9.608984][ T158] ? __kmalloc_noprof+0xdb/0x760 [ 9.608989][ T158] __kmalloc_noprof+0x443/0x760 [ 9.608991][ T158] ? alloc_buf.isra.0+0x4b/0x260 [ 9.608997][ T158] ? do_raw_spin_unlock+0x59/0x250 [ 9.608999][ T158] alloc_buf.isra.0+0x4b/0x260 [ 9.609002][ T158] put_chars+0x1e1/0x2f0 [ 9.609005][ T158] ? __send_to_port+0x420/0x420 [ 9.609006][ T158] ? printk_get_next_message+0x2fe/0x7d0 [ 9.609010][ T158] ? rcu_read_lock_any_held+0x3c/0x90 [ 9.609013][ T158] ? validate_chain+0x38b/0xc20 [ 9.609017][ T158] hvc_console_print+0x292/0x780 [ 9.609019][ T158] ? __lock_acquire+0x518/0xc20 [ 9.609021][ T158] ? __lock_acquire+0x518/0xc20 [ 9.609025][ T158] ? hvc_write+0x3a0/0x3a0 [ 9.609028][ T158] ? rcu_is_watching+0x16/0xd0 [ 9.609031][ T158] ? lock_acquire+0x13c/0x160 [ 9.609034][ T158] console_emit_next_record+0x252/0x4f0 [ 9.609038][ T158] ? devkmsg_read+0x4e0/0x4e0 [ 9.609042][ T158] ? rcu_is_watching+0x16/0xd0 [ 9.609044][ T158] ? lock_acquire+0x13c/0x160 [ 9.609048][ T158] console_flush_one_record+0x46f/0x710 [ 9.609052][ T158] ? console_emit_next_record+0x4f0/0x4f0 [ 9.609053][ T158] ? __lock_acquire+0x518/0xc20 [ 9.609058][ T158] console_unlock+0xee/0x1f0 [ 9.609060][ T158] ? console_flush_one_record+0x710/0x710 [ 9.609062][ T158] ? rcu_is_watching+0x16/0xd0 [ 9.609064][ T158] ? lock_acquire+0x60/0x160 [ 9.609067][ T158] ? __down_trylock_console_sem+0x5e/0xa0 [ 9.609069][ T158] ? vprintk_emit+0x320/0x3e0 [ 9.609072][ T158] vprintk_emit+0x37c/0x3e0 [ 9.609075][ T158] ? wake_up_klogd_work_func+0x90/0x90 [ 9.609078][ T158] ? _copy_from_iter+0x1bb/0x1810 [ 9.609084][ T158] devkmsg_emit.constprop.0+0xbc/0xf1 [ 9.609088][ T158] ? vprintk_emit.cold+0x107/0x107 [ 9.609092][ T158] ? __kmalloc_noprof+0x302/0x760 [ 9.609093][ T158] ? idr_get_free+0x830/0x830 [ 9.609097][ T158] ? devkmsg_write+0xd1/0x2c0 [ 9.609100][ T158] ? _copy_from_iter+0x1bb/0x1810 [ 9.609102][ T158] devkmsg_write.cold+0x5a/0x8b [ 9.609105][ T158] ? vprintk_default+0x20/0x20 [ 9.609107][ T158] ? __lock_acquire+0x518/0xc20 [ 9.609109][ T158] ? vfs_lock_file+0x1b0/0x1b0 [ 9.609113][ T158] ? vprintk_default+0x20/0x20 [ 9.609116][ T158] new_sync_write+0x33e/0x760 [ 9.609120][ T158] ? new_sync_read+0x750/0x750 [ 9.609122][ T158] ? rcu_read_lock_any_held+0x3c/0x90 [ 9.609130][ T158] vfs_write+0x6a2/0xbd0 [ 9.609134][ T158] ksys_write+0x116/0x250 [ 9.609136][ T158] ? __ia32_sys_read+0xc0/0xc0 [ 9.609138][ T158] ? do_raw_spin_unlock+0x59/0x250 [ 9.609141][ T158] ? rcu_is_watching+0x16/0xd0 [ 9.609144][ T158] do_syscall_64+0xff/0x530 [ 9.609146][ T158] ? exc_page_fault+0xee/0x100 [ 9.609149][ T158] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 9.609151][ T158] RIP: 0033:0x7fbcc934b54e [ 9.609155][ T158] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa [ 9.609157][ T158] RSP: 002b:00007ffdb909f060 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 9.609160][ T158] RAX: ffffffffffffffda RBX: 00007fbcc94cc580 RCX: 00007fbcc934b54e [ 9.609162][ T158] RDX: 0000000000000023 RSI: 00005596a0d0c490 RDI: 0000000000000001 [ 9.609163][ T158] RBP: 00007ffdb909f070 R08: 0000000000000000 R09: 0000000000000000 [ 9.609164][ T158] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000023 [ 9.609165][ T158] R13: 0000000000000023 R14: 00005596a0d0c490 R15: 0000000000000000 [ 9.609171][ T158] [ 10.296021][ T158] netconsole selftest: netcons_w1q1u