====================================== | [ 10.231453][ T175] softirqs last disabled at (26295): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 10.231456][ T175] Preemption disabled at: | [ 10.231457][ T175] 0x0 | [ 10.231470][ T175] Tainted: [W]=WARN [ 10.231472][ T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.231474][ T175] Call Trace: [ 10.231476][ T175] [ 10.231478][ T175] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.231485][ T175] __might_resched.cold (kernel/sched/core.c:9234) [ 10.231491][ T175] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.231496][ T175] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.231503][ T175] __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)) [ 10.231507][ T175] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.231516][ T175] ? 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) [ 10.231520][ T175] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.231526][ T175] put_chars (drivers/char/virtio_console.c:1176) [ 10.231530][ T175] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.231542][ T175] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.231554][ T175] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.231559][ T175] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.231566][ T175] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.231572][ T175] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.231574][ T175] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 10.231578][ T175] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.231583][ T175] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.231591][ T175] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.231597][ T175] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.231599][ T175] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.231609][ T175] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.231613][ T175] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.231615][ T175] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.231618][ T175] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 10.231625][ T175] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.231628][ T175] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.231633][ T175] vprintk_emit (kernel/printk/printk.c:2479) [ 10.231638][ T175] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.231644][ T175] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.231650][ T175] _printk (kernel/printk/printk.c:2504) [ 10.231655][ T175] ? snapshot_read.cold (user.c:?) [ 10.231660][ T175] ? 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) [ 10.231664][ T175] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 10.231671][ T175] ? 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) [ 10.231676][ T175] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 10.231682][ T175] ? exit_notify (kernel/exit.c:780) [ 10.231684][ T175] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.231689][ T175] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.231695][ T175] do_group_exit (kernel/exit.c:1151) [ 10.231700][ T175] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 10.231703][ T175] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 10.231707][ T175] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.231712][ T175] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.231717][ T175] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.231720][ T175] RIP: 0033:0x7f37641af1b8 [ 10.231723][ T175] Code: Unable to access opcode bytes at 0x7f37641af18e. Code starting with the faulting instruction =========================================== [ 10.231725][ T175] RSP: 002b:00007fffcf6031a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.231728][ T175] RAX: ffffffffffffffda RBX: 00007f37642dff88 RCX: 00007f37641af1b8 [ 10.231730][ T175] RDX: 00007f3763ef9fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.231731][ T175] RBP: 00007fffcf603200 R08: 0000000000000000 R09: 0000000000000050 [ 10.231733][ T175] R10: 00007fffcf602fc0 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print