===================================================== WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected 5.9.0-syzkaller #0 Not tainted ----------------------------------------------------- syz-executor.0/10226 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire: ffff8880280a8760 (&card->ctl_files_rwlock){.+.+}-{2:2}, at: snd_ctl_notify.part.0+0x36/0x550 sound/core/control.c:153 and this task is already holding: ffff888072ed0108 (&group->lock){..-.}-{2:2}, at: spin_lock_irq include/linux/spinlock.h:379 [inline] ffff888072ed0108 (&group->lock){..-.}-{2:2}, at: snd_pcm_group_lock_irq sound/core/pcm_native.c:97 [inline] ffff888072ed0108 (&group->lock){..-.}-{2:2}, at: snd_pcm_stream_lock_irq+0x8e/0xb0 sound/core/pcm_native.c:136 which would create a new lock dependency: (&group->lock){..-.}-{2:2} -> (&card->ctl_files_rwlock){.+.+}-{2:2} but this new dependency connects a SOFTIRQ-irq-safe lock: (&group->lock){..-.}-{2:2} ... which became SOFTIRQ-irq-safe at: lock_acquire kernel/locking/lockdep.c:5442 [inline] lock_acquire+0x219/0x9d0 kernel/locking/lockdep.c:5407 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x94/0xd0 kernel/locking/spinlock.c:159 _snd_pcm_stream_lock_irqsave+0x9f/0xd0 sound/core/pcm_native.c:170 snd_pcm_period_elapsed+0x24/0x250 sound/core/pcm_lib.c:1799 dummy_hrtimer_callback+0x94/0x1b0 sound/drivers/dummy.c:378 __run_hrtimer kernel/time/hrtimer.c:1524 [inline] __hrtimer_run_queues+0x693/0xea0 kernel/time/hrtimer.c:1588 hrtimer_run_softirq+0x17b/0x360 kernel/time/hrtimer.c:1605 __do_softirq+0x203/0xac5 kernel/softirq.c:298 asm_call_irq_on_stack+0xf/0x20 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline] do_softirq_own_stack+0xaa/0xd0 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:393 [inline] __irq_exit_rcu kernel/softirq.c:423 [inline] irq_exit_rcu+0x235/0x280 kernel/softirq.c:435 sysvec_apic_timer_interrupt+0x4d/0x100 arch/x86/kernel/apic/apic.c:1091 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:581 native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:60 arch_safe_halt arch/x86/include/asm/paravirt.h:150 [inline] default_idle+0x2f/0x50 arch/x86/kernel/process.c:688 default_idle_call+0x95/0xd0 kernel/sched/idle.c:98 cpuidle_idle_call kernel/sched/idle.c:168 [inline] do_idle+0x4a9/0x730 kernel/sched/idle.c:273 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:369 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243 to a SOFTIRQ-irq-unsafe lock: (&card->ctl_files_rwlock){.+.+}-{2:2} ... which became SOFTIRQ-irq-unsafe at: ... lock_acquire kernel/locking/lockdep.c:5442 [inline] lock_acquire+0x219/0x9d0 kernel/locking/lockdep.c:5407 __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline] _raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:223 snd_ctl_notify.part.0+0x36/0x550 sound/core/control.c:153 snd_ctl_notify+0x8f/0xb0 sound/core/control.c:181 __snd_ctl_add_replace+0x638/0x800 sound/core/control.c:382 snd_ctl_add_replace+0x76/0x130 sound/core/control.c:399 snd_card_dummy_new_mixer sound/drivers/dummy.c:885 [inline] snd_dummy_probe+0xc22/0x1180 sound/drivers/dummy.c:1080 platform_drv_probe+0x87/0x140 drivers/base/platform.c:747 really_probe+0x282/0x9f0 drivers/base/dd.c:553 driver_probe_device+0xfe/0x1d0 drivers/base/dd.c:738 __device_attach_driver+0x1c2/0x220 drivers/base/dd.c:844 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:431 __device_attach+0x228/0x470 drivers/base/dd.c:912 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491 device_add+0xb17/0x1c40 drivers/base/core.c:2926 platform_device_add+0x34f/0x6d0 drivers/base/platform.c:597 platform_device_register_full+0x38c/0x4e0 drivers/base/platform.c:720 platform_device_register_resndata include/linux/platform_device.h:131 [inline] platform_device_register_simple include/linux/platform_device.h:160 [inline] alsa_card_dummy_init+0x1e0/0x309 sound/drivers/dummy.c:1168 do_one_initcall+0x103/0x6f0 init/main.c:1205 do_initcall_level init/main.c:1278 [inline] do_initcalls init/main.c:1294 [inline] do_basic_setup init/main.c:1314 [inline] kernel_init_freeable+0x652/0x6d6 init/main.c:1514 kernel_init+0xd/0x1b8 init/main.c:1403 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 other info that might help us debug this: Possible interrupt unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&card->ctl_files_rwlock); local_irq_disable(); lock(&group->lock); lock(&card->ctl_files_rwlock); lock(&group->lock); *** DEADLOCK *** 1 lock held by syz-executor.0/10226: #0: ffff888072ed0108 (&group->lock){..-.}-{2:2}, at: spin_lock_irq include/linux/spinlock.h:379 [inline] #0: ffff888072ed0108 (&group->lock){..-.}-{2:2}, at: snd_pcm_group_lock_irq sound/core/pcm_native.c:97 [inline] #0: ffff888072ed0108 (&group->lock){..-.}-{2:2}, at: snd_pcm_stream_lock_irq+0x8e/0xb0 sound/core/pcm_native.c:136 the dependencies between SOFTIRQ-irq-safe lock and the holding lock: -> (&group->lock){..-.}-{2:2} { IN-SOFTIRQ-W at: lock_acquire kernel/locking/lockdep.c:5442 [inline] lock_acquire+0x219/0x9d0 kernel/locking/lockdep.c:5407 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x94/0xd0 kernel/locking/spinlock.c:159 _snd_pcm_stream_lock_irqsave+0x9f/0xd0 sound/core/pcm_native.c:170 snd_pcm_period_elapsed+0x24/0x250 sound/core/pcm_lib.c:1799 dummy_hrtimer_callback+0x94/0x1b0 sound/drivers/dummy.c:378 __run_hrtimer kernel/time/hrtimer.c:1524 [inline] __hrtimer_run_queues+0x693/0xea0 kernel/time/hrtimer.c:1588 hrtimer_run_softirq+0x17b/0x360 kernel/time/hrtimer.c:1605 __do_softirq+0x203/0xac5 kernel/softirq.c:298 asm_call_irq_on_stack+0xf/0x20 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline] do_softirq_own_stack+0xaa/0xd0 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:393 [inline] __irq_exit_rcu kernel/softirq.c:423 [inline] irq_exit_rcu+0x235/0x280 kernel/softirq.c:435 sysvec_apic_timer_interrupt+0x4d/0x100 arch/x86/kernel/apic/apic.c:1091 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:581 native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:60 arch_safe_halt arch/x86/include/asm/paravirt.h:150 [inline] default_idle+0x2f/0x50 arch/x86/kernel/process.c:688 default_idle_call+0x95/0xd0 kernel/sched/idle.c:98 cpuidle_idle_call kernel/sched/idle.c:168 [inline] do_idle+0x4a9/0x730 kernel/sched/idle.c:273 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:369 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243 INITIAL USE at: lock_acquire kernel/locking/lockdep.c:5442 [inline] lock_acquire+0x219/0x9d0 kernel/locking/lockdep.c:5407 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:128 [inline] _raw_spin_lock_irq+0x94/0xd0 kernel/locking/spinlock.c:167 spin_lock_irq include/linux/spinlock.h:379 [inline] snd_pcm_group_lock_irq sound/core/pcm_native.c:97 [inline] snd_pcm_stream_lock_irq sound/core/pcm_native.c:136 [inline] snd_pcm_hw_params+0x12a/0x1920 sound/core/pcm_native.c:672 snd_pcm_kernel_ioctl+0xd1/0x240 sound/core/pcm_native.c:3325 snd_pcm_oss_change_params_locked+0x130a/0x3420 sound/core/oss/pcm_oss.c:941 snd_pcm_oss_change_params sound/core/oss/pcm_oss.c:1084 [inline] snd_pcm_oss_get_active_substream+0x164/0x1c0 sound/core/oss/pcm_oss.c:1101 snd_pcm_oss_get_rate sound/core/oss/pcm_oss.c:1755 [inline] snd_pcm_oss_set_rate sound/core/oss/pcm_oss.c:1747 [inline] snd_pcm_oss_ioctl+0x1a2f/0x33a0 sound/core/oss/pcm_oss.c:2594 __do_compat_sys_ioctl+0x1d3/0x230 fs/ioctl.c:842 do_syscall_32_irqs_on arch/x86/entry/common.c:78 [inline] __do_fast_syscall_32+0x56/0x80 arch/x86/entry/common.c:137 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:160 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c } ... key at: [] __key.7+0x0/0x40 ... acquired at: lock_acquire kernel/locking/lockdep.c:5442 [inline] lock_acquire+0x219/0x9d0 kernel/locking/lockdep.c:5407 __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline] _raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:223 snd_ctl_notify.part.0+0x36/0x550 sound/core/control.c:153 snd_ctl_notify+0x8f/0xb0 sound/core/control.c:181 loopback_check_format sound/drivers/aloop.c:358 [inline] loopback_trigger+0x112f/0x1ab0 sound/drivers/aloop.c:387 snd_pcm_do_start sound/core/pcm_native.c:1350 [inline] snd_pcm_do_start+0xb1/0xf0 sound/core/pcm_native.c:1345 snd_pcm_action_single sound/core/pcm_native.c:1207 [inline] snd_pcm_action+0xc8/0x170 sound/core/pcm_native.c:1290 __snd_pcm_lib_xfer+0x1202/0x1a90 sound/core/pcm_lib.c:2247 snd_pcm_oss_write3+0x107/0x320 sound/core/oss/pcm_oss.c:1221 io_playback_transfer+0x27e/0x330 sound/core/oss/io.c:47 snd_pcm_plug_write_transfer+0x2cd/0x3f0 sound/core/oss/pcm_plugin.c:624 snd_pcm_oss_write2+0x245/0x3f0 sound/core/oss/pcm_oss.c:1353 snd_pcm_oss_sync1+0x168/0x450 sound/core/oss/pcm_oss.c:1594 snd_pcm_oss_sync+0x638/0x800 sound/core/oss/pcm_oss.c:1670 snd_pcm_oss_ioctl+0x2137/0x33a0 sound/core/oss/pcm_oss.c:2590 __do_compat_sys_ioctl+0x1d3/0x230 fs/ioctl.c:842 do_syscall_32_irqs_on arch/x86/entry/common.c:78 [inline] __do_fast_syscall_32+0x56/0x80 arch/x86/entry/common.c:137 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:160 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c the dependencies between the lock to be acquired and SOFTIRQ-irq-unsafe lock: -> (&card->ctl_files_rwlock){.+.+}-{2:2} { HARDIRQ-ON-R at: lock_acquire kernel/locking/lockdep.c:5442 [inline] lock_acquire+0x219/0x9d0 kernel/locking/lockdep.c:5407 __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline] _raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:223 snd_ctl_notify.part.0+0x36/0x550 sound/core/control.c:153 snd_ctl_notify+0x8f/0xb0 sound/core/control.c:181 __snd_ctl_add_replace+0x638/0x800 sound/core/control.c:382 snd_ctl_add_replace+0x76/0x130 sound/core/control.c:399 snd_card_dummy_new_mixer sound/drivers/dummy.c:885 [inline] snd_dummy_probe+0xc22/0x1180 sound/drivers/dummy.c:1080 platform_drv_probe+0x87/0x140 drivers/base/platform.c:747 really_probe+0x282/0x9f0 drivers/base/dd.c:553 driver_probe_device+0xfe/0x1d0 drivers/base/dd.c:738 __device_attach_driver+0x1c2/0x220 drivers/base/dd.c:844 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:431 __device_attach+0x228/0x470 drivers/base/dd.c:912 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491 device_add+0xb17/0x1c40 drivers/base/core.c:2926 platform_device_add+0x34f/0x6d0 drivers/base/platform.c:597 platform_device_register_full+0x38c/0x4e0 drivers/base/platform.c:720 platform_device_register_resndata include/linux/platform_device.h:131 [inline] platform_device_register_simple include/linux/platform_device.h:160 [inline] alsa_card_dummy_init+0x1e0/0x309 sound/drivers/dummy.c:1168 do_one_initcall+0x103/0x6f0 init/main.c:1205 do_initcall_level init/main.c:1278 [inline] do_initcalls init/main.c:1294 [inline] do_basic_setup init/main.c:1314 [inline] kernel_init_freeable+0x652/0x6d6 init/main.c:1514 kernel_init+0xd/0x1b8 init/main.c:1403 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 SOFTIRQ-ON-R at: lock_acquire kernel/locking/lockdep.c:5442 [inline] lock_acquire+0x219/0x9d0 kernel/locking/lockdep.c:5407 __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline] _raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:223 snd_ctl_notify.part.0+0x36/0x550 sound/core/control.c:153 snd_ctl_notify+0x8f/0xb0 sound/core/control.c:181 __snd_ctl_add_replace+0x638/0x800 sound/core/control.c:382 snd_ctl_add_replace+0x76/0x130 sound/core/control.c:399 snd_card_dummy_new_mixer sound/drivers/dummy.c:885 [inline] snd_dummy_probe+0xc22/0x1180 sound/drivers/dummy.c:1080 platform_drv_probe+0x87/0x140 drivers/base/platform.c:747 really_probe+0x282/0x9f0 drivers/base/dd.c:553 driver_probe_device+0xfe/0x1d0 drivers/base/dd.c:738 __device_attach_driver+0x1c2/0x220 drivers/base/dd.c:844 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:431 __device_attach+0x228/0x470 drivers/base/dd.c:912 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491 device_add+0xb17/0x1c40 drivers/base/core.c:2926 platform_device_add+0x34f/0x6d0 drivers/base/platform.c:597 platform_device_register_full+0x38c/0x4e0 drivers/base/platform.c:720 platform_device_register_resndata include/linux/platform_device.h:131 [inline] platform_device_register_simple include/linux/platform_device.h:160 [inline] alsa_card_dummy_init+0x1e0/0x309 sound/drivers/dummy.c:1168 do_one_initcall+0x103/0x6f0 init/main.c:1205 do_initcall_level init/main.c:1278 [inline] do_initcalls init/main.c:1294 [inline] do_basic_setup init/main.c:1314 [inline] kernel_init_freeable+0x652/0x6d6 init/main.c:1514 kernel_init+0xd/0x1b8 init/main.c:1403 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 INITIAL READ USE at: lock_acquire kernel/locking/lockdep.c:5442 [inline] lock_acquire+0x219/0x9d0 kernel/locking/lockdep.c:5407 __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline] _raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:223 snd_ctl_notify.part.0+0x36/0x550 sound/core/control.c:153 snd_ctl_notify+0x8f/0xb0 sound/core/control.c:181 __snd_ctl_add_replace+0x638/0x800 sound/core/control.c:382 snd_ctl_add_replace+0x76/0x130 sound/core/control.c:399 snd_card_dummy_new_mixer sound/drivers/dummy.c:885 [inline] snd_dummy_probe+0xc22/0x1180 sound/drivers/dummy.c:1080 platform_drv_probe+0x87/0x140 drivers/base/platform.c:747 really_probe+0x282/0x9f0 drivers/base/dd.c:553 driver_probe_device+0xfe/0x1d0 drivers/base/dd.c:738 __device_attach_driver+0x1c2/0x220 drivers/base/dd.c:844 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:431 __device_attach+0x228/0x470 drivers/base/dd.c:912 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491 device_add+0xb17/0x1c40 drivers/base/core.c:2926 platform_device_add+0x34f/0x6d0 drivers/base/platform.c:597 platform_device_register_full+0x38c/0x4e0 drivers/base/platform.c:720 platform_device_register_resndata include/linux/platform_device.h:131 [inline] platform_device_register_simple include/linux/platform_device.h:160 [inline] alsa_card_dummy_init+0x1e0/0x309 sound/drivers/dummy.c:1168 do_one_initcall+0x103/0x6f0 init/main.c:1205 do_initcall_level init/main.c:1278 [inline] do_initcalls init/main.c:1294 [inline] do_basic_setup init/main.c:1314 [inline] kernel_init_freeable+0x652/0x6d6 init/main.c:1514 kernel_init+0xd/0x1b8 init/main.c:1403 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 } ... key at: [] __key.11+0x0/0x40 ... acquired at: lock_acquire kernel/locking/lockdep.c:5442 [inline] lock_acquire+0x219/0x9d0 kernel/locking/lockdep.c:5407 __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline] _raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:223 snd_ctl_notify.part.0+0x36/0x550 sound/core/control.c:153 snd_ctl_notify+0x8f/0xb0 sound/core/control.c:181 loopback_check_format sound/drivers/aloop.c:358 [inline] loopback_trigger+0x112f/0x1ab0 sound/drivers/aloop.c:387 snd_pcm_do_start sound/core/pcm_native.c:1350 [inline] snd_pcm_do_start+0xb1/0xf0 sound/core/pcm_native.c:1345 snd_pcm_action_single sound/core/pcm_native.c:1207 [inline] snd_pcm_action+0xc8/0x170 sound/core/pcm_native.c:1290 __snd_pcm_lib_xfer+0x1202/0x1a90 sound/core/pcm_lib.c:2247 snd_pcm_oss_write3+0x107/0x320 sound/core/oss/pcm_oss.c:1221 io_playback_transfer+0x27e/0x330 sound/core/oss/io.c:47 snd_pcm_plug_write_transfer+0x2cd/0x3f0 sound/core/oss/pcm_plugin.c:624 snd_pcm_oss_write2+0x245/0x3f0 sound/core/oss/pcm_oss.c:1353 snd_pcm_oss_sync1+0x168/0x450 sound/core/oss/pcm_oss.c:1594 snd_pcm_oss_sync+0x638/0x800 sound/core/oss/pcm_oss.c:1670 snd_pcm_oss_ioctl+0x2137/0x33a0 sound/core/oss/pcm_oss.c:2590 __do_compat_sys_ioctl+0x1d3/0x230 fs/ioctl.c:842 do_syscall_32_irqs_on arch/x86/entry/common.c:78 [inline] __do_fast_syscall_32+0x56/0x80 arch/x86/entry/common.c:137 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:160 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c stack backtrace: CPU: 2 PID: 10226 Comm: syz-executor.0 Not tainted 5.9.0-syzkaller #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x198/0x1fb lib/dump_stack.c:118 print_bad_irq_dependency kernel/locking/lockdep.c:2450 [inline] check_irq_usage.cold+0x4c2/0x5d8 kernel/locking/lockdep.c:2679 check_prev_add kernel/locking/lockdep.c:2868 [inline] check_prevs_add kernel/locking/lockdep.c:2989 [inline] validate_chain kernel/locking/lockdep.c:3607 [inline] __lock_acquire+0x2840/0x5590 kernel/locking/lockdep.c:4837 lock_acquire kernel/locking/lockdep.c:5442 [inline] lock_acquire+0x219/0x9d0 kernel/locking/lockdep.c:5407 __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline] _raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:223 snd_ctl_notify.part.0+0x36/0x550 sound/core/control.c:153 snd_ctl_notify+0x8f/0xb0 sound/core/control.c:181 loopback_check_format sound/drivers/aloop.c:358 [inline] loopback_trigger+0x112f/0x1ab0 sound/drivers/aloop.c:387 snd_pcm_do_start sound/core/pcm_native.c:1350 [inline] snd_pcm_do_start+0xb1/0xf0 sound/core/pcm_native.c:1345 snd_pcm_action_single sound/core/pcm_native.c:1207 [inline] snd_pcm_action+0xc8/0x170 sound/core/pcm_native.c:1290 __snd_pcm_lib_xfer+0x1202/0x1a90 sound/core/pcm_lib.c:2247 snd_pcm_oss_write3+0x107/0x320 sound/core/oss/pcm_oss.c:1221 io_playback_transfer+0x27e/0x330 sound/core/oss/io.c:47 snd_pcm_plug_write_transfer+0x2cd/0x3f0 sound/core/oss/pcm_plugin.c:624 snd_pcm_oss_write2+0x245/0x3f0 sound/core/oss/pcm_oss.c:1353 snd_pcm_oss_sync1+0x168/0x450 sound/core/oss/pcm_oss.c:1594 snd_pcm_oss_sync+0x638/0x800 sound/core/oss/pcm_oss.c:1670 snd_pcm_oss_ioctl+0x2137/0x33a0 sound/core/oss/pcm_oss.c:2590 __do_compat_sys_ioctl+0x1d3/0x230 fs/ioctl.c:842 do_syscall_32_irqs_on arch/x86/entry/common.c:78 [inline] __do_fast_syscall_32+0x56/0x80 arch/x86/entry/common.c:137 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:160 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c RIP: 0023:0xf7fcc549 Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 002b:00000000f55a50bc EFLAGS: 00000296 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000005001 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000