====================================== | [ 24.788442][ T415] softirqs last disabled at (76101): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 24.788444][ T415] Preemption disabled at: | [ 24.788444][ T415] 0x0 | [ 24.788454][ T415] Tainted: [W]=WARN [ 24.788455][ T415] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 24.788457][ T415] Call Trace: [ 24.788458][ T415] [ 24.788460][ T415] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 24.788466][ T415] __might_resched.cold (kernel/sched/core.c:9234) [ 24.788471][ T415] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 24.788474][ T415] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 24.788479][ T415] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 24.788482][ T415] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 24.788488][ T415] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 24.788491][ T415] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 24.788495][ T415] put_chars (drivers/char/virtio_console.c:1176) [ 24.788498][ T415] ? __send_to_port (drivers/char/virtio_console.c:654) [ 24.788500][ T415] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 24.788503][ T415] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 24.788506][ T415] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 24.788509][ T415] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 24.788513][ T415] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.788514][ T415] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.788519][ T415] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 24.788522][ T415] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.788525][ T415] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 24.788528][ T415] console_emit_next_record (kernel/printk/printk.c:3183) [ 24.788532][ T415] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 24.788536][ T415] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.788538][ T415] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 24.788542][ T415] console_flush_one_record (kernel/printk/printk.c:3268) [ 24.788546][ T415] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 24.788548][ T415] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.788553][ T415] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 24.788555][ T415] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 24.788557][ T415] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.788559][ T415] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 18) ./include/trace/events/lock.h:23 (discriminator 18) kernel/locking/lockdep.c:5871 (discriminator 18)) [ 24.788563][ T415] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 24.788564][ T415] ? vprintk_emit (kernel/printk/printk.c:2478) [ 24.788567][ T415] vprintk_emit (kernel/printk/printk.c:2479) [ 24.788571][ T415] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 24.788574][ T415] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.788578][ T415] _printk (kernel/printk/printk.c:2504) [ 24.788581][ T415] ? snapshot_read.cold (user.c:?) [ 24.788584][ T415] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 24.788586][ T415] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 24.788590][ T415] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 24.788593][ T415] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 24.788596][ T415] ? exit_notify (kernel/exit.c:780) [ 24.788598][ T415] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 24.788601][ T415] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.788605][ T415] do_group_exit (kernel/exit.c:1151) [ 24.788608][ T415] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 24.788610][ T415] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 24.788613][ T415] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 24.788616][ T415] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 24.788620][ T415] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 24.788622][ T415] RIP: 0033:0x7fe9279491b8 [ 24.788624][ T415] Code: Unable to access opcode bytes at 0x7fe92794918e. Code starting with the faulting instruction =========================================== [ 24.788625][ T415] RSP: 002b:00007ffe70d219a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 24.788627][ T415] RAX: ffffffffffffffda RBX: 00007fe927a79f88 RCX: 00007fe9279491b8 [ 24.788629][ T415] RDX: 00007fe92782ee88 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 24.788630][ T415] RBP: 00007ffe70d21a00 R08: 0000000000000000 R09: 0000000000004010 [ 24.788630][ T415] R10: 00007ffe70d21800 R11: 0000000000000246 R12: 0000000000000003 [ 24.788631][ T415] R13: 0000000000000000 R14: 00007fe927a78680 R15: 00007fe927a79fa0 | [ 31.004632][ T504] softirqs last disabled at (93332): unix_release_sock (./include/net/sock.h:2138 net/unix/af_unix.c:678) | [ 31.004634][ T504] Preemption disabled at: | [ 31.004635][ T504] 0x0 | [ 31.004645][ T504] Tainted: [W]=WARN [ 31.004646][ T504] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 31.004647][ T504] Call Trace: [ 31.004649][ T504] [ 31.004650][ T504] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 31.004656][ T504] __might_resched.cold (kernel/sched/core.c:9234) [ 31.004661][ T504] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 31.004665][ T504] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 31.004670][ T504] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 31.004672][ T504] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 31.004678][ T504] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 31.004680][ T504] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 31.004684][ T504] put_chars (drivers/char/virtio_console.c:1176) [ 31.004687][ T504] ? __send_to_port (drivers/char/virtio_console.c:654) [ 31.004689][ T504] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 31.004692][ T504] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 31.004695][ T504] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 31.004699][ T504] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 31.004702][ T504] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.004704][ T504] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.004708][ T504] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 31.004711][ T504] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.004714][ T504] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 31.004717][ T504] console_emit_next_record (kernel/printk/printk.c:3183) [ 31.004721][ T504] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 31.004725][ T504] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.004729][ T504] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 31.004733][ T504] console_flush_one_record (kernel/printk/printk.c:3268) [ 31.004737][ T504] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 31.004739][ T504] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.004744][ T504] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 31.004746][ T504] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 31.004748][ T504] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.004750][ T504] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 18) ./include/trace/events/lock.h:23 (discriminator 18) kernel/locking/lockdep.c:5871 (discriminator 18)) [ 31.004754][ T504] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 31.004755][ T504] ? vprintk_emit (kernel/printk/printk.c:2478) [ 31.004758][ T504] vprintk_emit (kernel/printk/printk.c:2479) [ 31.004762][ T504] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 31.004765][ T504] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.004769][ T504] _printk (kernel/printk/printk.c:2504) [ 31.004772][ T504] ? snapshot_read.cold (user.c:?) [ 31.004775][ T504] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 31.004777][ T504] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 31.004781][ T504] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 31.004783][ T504] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 31.004787][ T504] ? exit_notify (kernel/exit.c:780) [ 31.004789][ T504] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 31.004791][ T504] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.004795][ T504] do_group_exit (kernel/exit.c:1151) [ 31.004798][ T504] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 31.004800][ T504] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 31.004803][ T504] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 31.004806][ T504] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 31.004809][ T504] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 31.004812][ T504] RIP: 0033:0x7fd9ed8621b8 [ 31.004814][ T504] Code: Unable to access opcode bytes at 0x7fd9ed86218e. Code starting with the faulting instruction =========================================== [ 31.004815][ T504] RSP: 002b:00007ffe1d13b698 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 31.004817][ T504] RAX: ffffffffffffffda RBX: 00007fd9ed992f88 RCX: 00007fd9ed8621b8 [ 31.004818][ T504] RDX: 00007fd9ed747e88 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 31.004819][ T504] RBP: 00007ffe1d13b6f0 R08: 0000000000000000 R09: 0000000000004010 [ 31.004820][ T504] R10: 00007ffe1d13b4f0 R11: 0000000000000246 R12: 0000000000000003 Finger prints: unix_release_sock:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print