program:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = socket$alg(0x26, 0x5, 0x0)
bind$alg(r0, &(0x7f00000000c0)={0x26, 'hash\x00', 0x0, 0x0, 'sha224\x00'}, 0x58)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/bus/virtio/devices/virtio0/driver/unbind\x00', 0x1, 0x0)
write(r1, &(0x7f0000000140)='virtio0', 0x7)
r2 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r2, 0x0, 0x0)
[ 94.117148][ T44] Bluetooth: hci0: command tx timeout
[ 94.234225][ T5314] Console: switching to colour dummy device 80x25
[ 94.360080][ T5314] =============================================================================
[ 94.360649][ T5314]
[ 94.360656][ T5314] ======================================================
[ 94.360662][ T5314] WARNING: possible circular locking dependency detected
[ 94.360667][ T5314] syzkaller #0 Not tainted
[ 94.360674][ T5314] ------------------------------------------------------
[ 94.360678][ T5314] syz.0.0/5314 is trying to acquire lock:
[ 94.360684][ T5314] ffffffff8eb4c3c0 (console_owner){....}-{0:0}, at: console_flush_all+0x123/0xaf0
[ 94.360771][ T5314]
[ 94.360771][ T5314] but task is already holding lock:
[ 94.360775][ T5314] ffff8880004cde58 (&n->list_lock){-.-.}-{3:3}, at: __kmem_cache_shutdown+0x111/0x2a0
[ 94.360806][ T5314]
[ 94.360806][ T5314] which lock already depends on the new lock.
[ 94.360806][ T5314]
[ 94.360811][ T5314]
[ 94.360811][ T5314] the existing dependency chain (in reverse order) is:
[ 94.360815][ T5314]
[ 94.360815][ T5314] -> #4 (&n->list_lock){-.-.}-{3:3}:
[ 94.360829][ T5314] _raw_spin_lock_irqsave+0x40/0x60
[ 94.360877][ T5314] get_from_partial_node+0x54/0x4c0
[ 94.360891][ T5314] ___slab_alloc+0xbe/0x950
[ 94.360905][ T5314] kmem_cache_alloc_noprof+0x137/0x5f0
[ 94.360915][ T5314] fill_pool+0x163/0x600
[ 94.360956][ T5314] debug_object_activate+0x38d/0x420
[ 94.360967][ T5314] insert_work+0x35/0x330
[ 94.360977][ T5314] __queue_work+0xcda/0x10a0
[ 94.360989][ T5314] queue_work_on+0x106/0x1d0
[ 94.361000][ T5314] pcpu_alloc_noprof+0xa92/0x1900
[ 94.361014][ T5314] iommu_dma_init_fq+0x2d3/0x700
[ 94.361065][ T5314] iommu_setup_dma_ops+0x6e5/0x1820
[ 94.361165][ T5314] bus_iommu_probe+0x296/0x470
[ 94.361233][ T5314] iommu_device_register+0x1af/0x210
[ 94.361299][ T5314] intel_iommu_init+0x6f0/0x8e0
[ 94.361383][ T5314] pci_iommu_init+0x38/0x70
[ 94.361393][ T5314] do_one_initcall+0x250/0x870
[ 94.361409][ T5314] do_initcall_level+0x10a/0x1a0
[ 94.361430][ T5314] do_initcalls+0x59/0xa0
[ 94.361444][ T5314] kernel_init_freeable+0x29d/0x3e0
[ 94.361459][ T5314] kernel_init+0x22/0x1d0
[ 94.361472][ T5314] ret_from_fork+0x514/0xb70
[ 94.361487][ T5314] ret_from_fork_asm+0x1a/0x30
[ 94.361503][ T5314]
[ 94.361503][ T5314] -> #3 (&pool->lock){-.-.}-{2:2}:
[ 94.361519][ T5314] _raw_spin_lock+0x2e/0x40
[ 94.361532][ T5314] __queue_work+0x731/0x10a0
[ 94.361544][ T5314] queue_work_on+0x106/0x1d0
[ 94.361554][ T5314] rpm_suspend+0xeca/0x17a0
[ 94.361569][ T5314] __pm_runtime_idle+0x12f/0x1a0
[ 94.361581][ T5314] __device_attach+0x355/0x450
[ 94.361595][ T5314] device_initial_probe+0xa1/0xd0
[ 94.361610][ T5314] bus_probe_device+0x12a/0x220
[ 94.361621][ T5314] device_add+0x7d7/0xb80
[ 94.361633][ T5314] serial_base_port_add+0x18f/0x270
[ 94.361648][ T5314] serial_core_register_port+0x37f/0x2840
[ 94.361660][ T5314] serial8250_register_8250_port+0x16b4/0x2090
[ 94.361670][ T5314] serial_pnp_probe+0x56a/0x7f0
[ 94.361681][ T5314] pnp_device_probe+0x30b/0x4c0
[ 94.361692][ T5314] really_probe+0x254/0xae0
[ 94.361707][ T5314] __driver_probe_device+0x1e8/0x360
[ 94.361720][ T5314] driver_probe_device+0x4f/0x240
[ 94.361735][ T5314] __driver_attach+0x339/0x600
[ 94.361749][ T5314] bus_for_each_dev+0x23b/0x2c0
[ 94.361759][ T5314] bus_add_driver+0x345/0x670
[ 94.361768][ T5314] driver_register+0x23a/0x320
[ 94.361775][ T5314] serial8250_init+0x8f/0x160
[ 94.361787][ T5314] do_one_initcall+0x250/0x870
[ 94.361798][ T5314] do_initcall_level+0x10a/0x1a0
[ 94.361810][ T5314] do_initcalls+0x59/0xa0
[ 94.361823][ T5314] kernel_init_freeable+0x29d/0x3e0
[ 94.361835][ T5314] kernel_init+0x22/0x1d0
[ 94.361845][ T5314] ret_from_fork+0x514/0xb70
[ 94.361857][ T5314] ret_from_fork_asm+0x1a/0x30
[ 94.361869][ T5314]
[ 94.361869][ T5314] -> #2 (&dev->power.lock){-...}-{3:3}:
[ 94.361882][ T5314] _raw_spin_lock_irqsave+0x40/0x60
[ 94.361896][ T5314] __pm_runtime_resume+0x10f/0x180
[ 94.361910][ T5314] __uart_start+0x171/0x460
[ 94.361921][ T5314] uart_write+0x251/0x9f0
[ 94.361932][ T5314] n_tty_write+0xd49/0x11e0
[ 94.361946][ T5314] file_tty_write+0x50d/0x9f0
[ 94.361957][ T5314] vfs_write+0x612/0xba0
[ 94.361971][ T5314] ksys_write+0x150/0x270
[ 94.361984][ T5314] do_syscall_64+0x166/0x520
[ 94.361995][ T5314] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 94.362005][ T5314]
[ 94.362005][ T5314] -> #1 (&port_lock_key){-.-.}-{3:3}:
[ 94.362019][ T5314] _raw_spin_lock_irqsave+0x40/0x60
[ 94.362068][ T5314] serial8250_console_write+0x153/0x1ba0
[ 94.362107][ T5314] console_flush_all+0x6ea/0xaf0
[ 94.362120][ T5314] console_unlock+0xd1/0x1c0
[ 94.362155][ T5314] vprintk_emit+0x485/0x560
[ 94.362164][ T5314] _printk+0xdd/0x130
[ 94.362172][ T5314] register_console+0xbc3/0xfc0
[ 94.362182][ T5314] univ8250_console_init+0x3a/0x70
[ 94.362196][ T5314] console_init+0x10b/0x4a0
[ 94.362282][ T5314] start_kernel+0x238/0x3e0
[ 94.362296][ T5314] x86_64_start_reservations+0x24/0x30
[ 94.362308][ T5314] x86_64_start_kernel+0x137/0x1b0
[ 94.362320][ T5314] common_startup_64+0x13e/0x157
[ 94.362333][ T5314]
[ 94.362333][ T5314] -> #0 (console_owner){....}-{0:0}:
[ 94.362347][ T5314] __lock_acquire+0x1520/0x2cf0
[ 94.362360][ T5314] lock_acquire+0x106/0x350
[ 94.362373][ T5314] console_flush_all+0x693/0xaf0
[ 94.362382][ T5314] console_unlock+0xd1/0x1c0
[ 94.362391][ T5314] vprintk_emit+0x485/0x560
[ 94.362398][ T5314] _printk+0xdd/0x130
[ 94.362405][ T5314] __slab_bug+0x6e/0xd0
[ 94.362415][ T5314] slab_bug+0x57/0x80
[ 94.362431][ T5314] list_slab_objects+0x35/0x1a0
[ 94.362442][ T5314] __kmem_cache_shutdown+0x1a5/0x2a0
[ 94.362455][ T5314] kmem_cache_destroy+0x98/0x180
[ 94.362464][ T5314] virtio_gpu_free_vbufs+0x40/0x70
[ 94.362476][ T5314] virtio_gpu_release+0x55/0x140
[ 94.362493][ T5314] drm_dev_put+0xa9/0x120
[ 94.362503][ T5314] virtio_dev_remove+0x9c/0x1b0
[ 94.362513][ T5314] device_release_driver_internal+0x48b/0x880
[ 94.362528][ T5314] unbind_store+0x1a1/0x1d0
[ 94.362539][ T5314] kernfs_fop_write_iter+0x3a4/0x540
[ 94.362551][ T5314] vfs_write+0x612/0xba0
[ 94.362564][ T5314] ksys_write+0x150/0x270
[ 94.362578][ T5314] do_syscall_64+0x166/0x520
[ 94.362587][ T5314] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 94.362598][ T5314]
[ 94.362598][ T5314] other info that might help us debug this:
[ 94.362598][ T5314]
[ 94.362601][ T5314] Chain exists of:
[ 94.362601][ T5314] console_owner --> &pool->lock --> &n->list_lock
[ 94.362601][ T5314]
[ 94.362618][ T5314] Possible unsafe locking scenario:
[ 94.362618][ T5314]
[ 94.362621][ T5314] CPU0 CPU1
[ 94.362625][ T5314] ---- ----
[ 94.362629][ T5314] lock(&n->list_lock);
[ 94.362636][ T5314] lock(&pool->lock);
[ 94.362646][ T5314] lock(&n->list_lock);
[ 94.362655][ T5314] lock(console_owner);
[ 94.362662][ T5314]
[ 94.362662][ T5314] *** DEADLOCK ***
[ 94.362662][ T5314]
[ 94.362665][ T5314] locks held by syz.0.0/5314: 9, last CPU#0:
[ 94.362674][ T5314] #0: ffff88800031ad30 (&f->f_pos_lock){+.+.}-{4:4}, at: fdget_pos+0x246/0x320
[ 94.362732][ T5314] #1: ffff8880127b8460 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x22b/0xba0
[ 94.362769][ T5314] #2: ffff88801fc65480 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1d8/0x540
[ 94.362801][ T5314] #3: ffff88803335f1b0 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0xb9/0x880
[ 94.362836][ T5314] #4: ffffffff8e9e75d0 (cpu_hotplug_lock){++++}-{0:0}, at: kmem_cache_destroy+0x60/0x180
[ 94.362862][ T5314] #5: ffffffff8ec6a4e8 (slab_mutex){+.+.}-{4:4}, at: kmem_cache_destroy+0x6e/0x180
[ 94.362887][ T5314] #6: ffff8880004cde58 (&n->list_lock){-.-.}-{3:3}, at: __kmem_cache_shutdown+0x111/0x2a0
[ 94.362916][ T5314] #7: ffffffff8eb4c420 (console_lock){+.+.}-{0:0}, at: _printk+0xdd/0x130
[ 94.362941][ T5314] #8: ffffffff8ea33cb8 (console_srcu){....}-{0:0}, at: console_flush_all+0x123/0xaf0
[ 94.362967][ T5314]
[ 94.362967][ T5314] stack backtrace:
[ 94.362974][ T5314] CPU: 0 UID: 0 PID: 5314 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 94.362986][ T5314] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 94.362992][ T5314] Call Trace:
[ 94.362998][ T5314]
[ 94.363003][ T5314] dump_stack_lvl+0xe8/0x150
[ 94.363023][ T5314] print_circular_bug+0x2e1/0x300
[ 94.363037][ T5314] check_noncircular+0x12e/0x150
[ 94.363050][ T5314] __lock_acquire+0x1520/0x2cf0
[ 94.363072][ T5314] ? console_flush_all+0x123/0xaf0
[ 94.363083][ T5314] lock_acquire+0x106/0x350
[ 94.363098][ T5314] ? console_flush_all+0x123/0xaf0
[ 94.363112][ T5314] ? do_raw_spin_unlock+0x4d/0x200
[ 94.363126][ T5314] ? console_flush_all+0x123/0xaf0
[ 94.363140][ T5314] console_flush_all+0x693/0xaf0
[ 94.363154][ T5314] ? console_flush_all+0x123/0xaf0
[ 94.363168][ T5314] ? console_flush_all+0x123/0xaf0
[ 94.363182][ T5314] ? __pfx_console_flush_all+0x10/0x10
[ 94.363197][ T5314] ? is_printk_cpu_sync_owner+0x32/0x40
[ 94.363214][ T5314] console_unlock+0xd1/0x1c0
[ 94.363227][ T5314] ? __pfx_console_unlock+0x10/0x10
[ 94.363238][ T5314] ? _raw_spin_lock_bh+0x50/0x50
[ 94.363254][ T5314] ? _printk+0xdd/0x130
[ 94.363266][ T5314] vprintk_emit+0x485/0x560
[ 94.363278][ T5314] ? __pfx_vprintk_emit+0x10/0x10
[ 94.363291][ T5314] _printk+0xdd/0x130
[ 94.363303][ T5314] ? __pfx__printk+0x10/0x10
[ 94.363314][ T5314] ? do_raw_spin_lock+0x12b/0x2f0
[ 94.363328][ T5314] __slab_bug+0x6e/0xd0
[ 94.363342][ T5314] slab_bug+0x57/0x80
[ 94.363357][ T5314] list_slab_objects+0x35/0x1a0
[ 94.363372][ T5314] __kmem_cache_shutdown+0x1a5/0x2a0
[ 94.363388][ T5314] ? virtio_gpu_free_vbufs+0x40/0x70
[ 94.363401][ T5314] kmem_cache_destroy+0x98/0x180
[ 94.363413][ T5314] virtio_gpu_free_vbufs+0x40/0x70
[ 94.363432][ T5314] ? __pfx_virtio_gpu_release+0x10/0x10
[ 94.363449][ T5314] virtio_gpu_release+0x55/0x140
[ 94.363466][ T5314] ? __pfx_virtio_gpu_release+0x10/0x10
[ 94.363515][ T5314] drm_dev_put+0xa9/0x120
[ 94.363527][ T5314] virtio_dev_remove+0x9c/0x1b0
[ 94.363539][ T5314] ? __pfx_virtio_dev_remove+0x10/0x10
[ 94.363551][ T5314] device_release_driver_internal+0x48b/0x880
[ 94.363571][ T5314] unbind_store+0x1a1/0x1d0
[ 94.363586][ T5314] ? __pfx_sysfs_kf_write+0x10/0x10
[ 94.363602][ T5314] kernfs_fop_write_iter+0x3a4/0x540
[ 94.363617][ T5314] vfs_write+0x612/0xba0
[ 94.363636][ T5314] ? __pfx_vfs_write+0x10/0x10
[ 94.363655][ T5314] ? __fget_files+0x2a/0x420
[ 94.363674][ T5314] ksys_write+0x150/0x270
[ 94.363692][ T5314] ? __pfx_ksys_write+0x10/0x10
[ 94.363711][ T5314] do_syscall_64+0x166/0x520
[ 94.363722][ T5314] ? trace_irq_disable+0x3b/0x140
[ 94.363737][ T5314] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 94.363749][ T5314] ? clear_bhb_loop+0x70/0xc0
[ 94.363762][ T5314] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 94.363774][ T5314] RIP: 0033:0x7f888879e0d9
[ 94.363786][ T5314] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 94.363796][ T5314] RSP: 002b:00007f88896bcfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 94.363809][ T5314] RAX: ffffffffffffffda RBX: 00007f8888a25fa0 RCX: 00007f888879e0d9
[ 94.363818][ T5314] RDX: 0000000000000007 RSI: 0000200000000140 RDI: 0000000000000004
[ 94.363826][ T5314] RBP: 00007f8888835024 R08: 0000000000000000 R09: 0000000000000000
[ 94.363833][ T5314] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 94.363840][ T5314] R13: 00007f8888a26038 R14: 00007f8888a25fa0 R15: 00007ffc392c6b98
[ 94.363853][ T5314]
[ 94.853073][ T5314] BUG virtio-gpu-vbufs (Not tainted): Objects remaining on __kmem_cache_shutdown()
[ 94.857075][ T5314] -----------------------------------------------------------------------------
[ 94.857075][ T5314]
[ 94.861831][ T5314] Object 0xffff8880121a4e38 @offset=3640
[ 94.864305][ T5314] Slab 0xffffea0000486900 objects=14 used=1 fp=0xffff8880121a4af0 flags=0xfff00000000200(workingset|node=0|zone=1|lastcpupid=0x7ff)
[ 94.870040][ T5314] ------------[ cut here ]------------
[ 94.872680][ T5314] 1
[ 94.872692][ T5314] WARNING: mm/slub.c:1244 at __slab_err+0x15/0x20, CPU#0: syz.0.0/5314
[ 94.878026][ T5314] Modules linked in:
[ 94.879728][ T5314] CPU: 0 UID: 0 PID: 5314 Comm: syz.0.0 Tainted: G B syzkaller #0 PREEMPT(full)
[ 94.884156][ T5314] Tainted: [B]=BAD_PAGE
[ 94.885952][ T5314] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 94.890347][ T5314] RIP: 0010:__slab_err+0x15/0x20
[ 94.892563][ T5314] Code: 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 e8 2b 00 00 00 bf 05 00 00 00 be 01 00 00 00 e8 cc 93 5e 00 90 <0f> 0b 90 c3 cc cc cc cc cc 66 90 90 90 90 90 90 90 90 90 90 90 90
[ 94.900724][ T5314] RSP: 0018:ffffc9000f667a80 EFLAGS: 00010087
[ 94.903376][ T5314] RAX: ffffffff8186c8da RBX: ffff888034eb2000 RCX: 0000000000100000
[ 94.906883][ T5314] RDX: ffffc9000ecc9000 RSI: 000000000005dedd RDI: 000000000005dede
[ 94.910320][ T5314] RBP: ffffea00004a9550 R08: ffffffff937330c7 R09: 1ffffffff26e6618
[ 94.913836][ T5314] R10: dffffc0000000000 R11: fffffbfff26e6619 R12: ffffea00004adc50
[ 94.917293][ T5314] R13: ffffea0000486900 R14: ffffc9000f667a98 R15: ffff8880004cde40
[ 94.920762][ T5314] FS: 00007f88896bd6c0(0000) GS:ffff88808c533000(0000) knlGS:0000000000000000
[ 94.924655][ T5314] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 94.927459][ T5314] CR2: 00007f3e42b909c0 CR3: 000000001fcc9000 CR4: 0000000000352ef0
[ 94.931074][ T5314] Call Trace:
[ 94.932780][ T5314]
[ 94.934158][ T5314] __kmem_cache_shutdown+0x1a5/0x2a0
[ 94.936560][ T5314] ? virtio_gpu_free_vbufs+0x40/0x70
[ 94.938879][ T5314] kmem_cache_destroy+0x98/0x180
[ 94.941048][ T5314] virtio_gpu_free_vbufs+0x40/0x70
[ 94.943306][ T5314] ? __pfx_virtio_gpu_release+0x10/0x10
[ 94.945650][ T5314] virtio_gpu_release+0x55/0x140
[ 94.947835][ T5314] ? __pfx_virtio_gpu_release+0x10/0x10
[ 94.950286][ T5314] drm_dev_put+0xa9/0x120
[ 94.952270][ T5314] virtio_dev_remove+0x9c/0x1b0
[ 94.954439][ T5314] ? __pfx_virtio_dev_remove+0x10/0x10
[ 94.956922][ T5314] device_release_driver_internal+0x48b/0x880
[ 94.959512][ T5314] unbind_store+0x1a1/0x1d0
[ 94.961524][ T5314] ? __pfx_sysfs_kf_write+0x10/0x10
[ 94.963867][ T5314] kernfs_fop_write_iter+0x3a4/0x540
[ 94.966135][ T5314] vfs_write+0x612/0xba0
[ 94.967977][ T5314] ? __pfx_vfs_write+0x10/0x10
[ 94.970094][ T5314] ? __fget_files+0x2a/0x420
[ 94.972185][ T5314] ksys_write+0x150/0x270
[ 94.974174][ T5314] ? __pfx_ksys_write+0x10/0x10
[ 94.976444][ T5314] do_syscall_64+0x166/0x520
[ 94.978514][ T5314] ? trace_irq_disable+0x3b/0x140
[ 94.980649][ T5314] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 94.983051][ T5314] ? clear_bhb_loop+0x70/0xc0
[ 94.984945][ T5314] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 94.987346][ T5314] RIP: 0033:0x7f888879e0d9
[ 94.989363][ T5314] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 94.997681][ T5314] RSP: 002b:00007f88896bcfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 95.001286][ T5314] RAX: ffffffffffffffda RBX: 00007f8888a25fa0 RCX: 00007f888879e0d9
[ 95.004770][ T5314] RDX: 0000000000000007 RSI: 0000200000000140 RDI: 0000000000000004
[ 95.008260][ T5314] RBP: 00007f8888835024 R08: 0000000000000000 R09: 0000000000000000
[ 95.011739][ T5314] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 95.015264][ T5314] R13: 00007f8888a26038 R14: 00007f8888a25fa0 R15: 00007ffc392c6b98
[ 95.018667][ T5314]
[ 95.020066][ T5314] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 95.023204][ T5314] CPU: 0 UID: 0 PID: 5314 Comm: syz.0.0 Tainted: G B syzkaller #0 PREEMPT(full)
[ 95.027777][ T5314] Tainted: [B]=BAD_PAGE
[ 95.029589][ T5314] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 95.033974][ T5314] Call Trace:
[ 95.035532][ T5314]
[ 95.036866][ T5314] vpanic+0x56d/0xa60
[ 95.038614][ T5314] ? __pfx__printk+0x10/0x10
[ 95.040556][ T5314] ? __pfx_vpanic+0x10/0x10
[ 95.042455][ T5314] ? is_bpf_text_address+0x292/0x2b0
[ 95.044672][ T5314] ? is_bpf_text_address+0x26/0x2b0
[ 95.046867][ T5314] panic+0xc5/0xd0
[ 95.048652][ T5314] ? __pfx_panic+0x10/0x10
[ 95.051093][ T5314] __warn+0x315/0x4c0
[ 95.053224][ T5314] ? __slab_err+0x15/0x20
[ 95.055180][ T5314] ? __slab_err+0x15/0x20
[ 95.057085][ T5314] __report_bug+0x276/0x570
[ 95.059034][ T5314] ? do_raw_spin_unlock+0x4d/0x200
[ 95.061224][ T5314] ? __slab_err+0x15/0x20
[ 95.063240][ T5314] ? __pfx___report_bug+0x10/0x10
[ 95.065456][ T5314] ? __wake_up_klogd+0xf0/0x130
[ 95.067758][ T5314] ? vprintk_emit+0x4ee/0x560
[ 95.069829][ T5314] ? __pfx_vprintk_emit+0x10/0x10
[ 95.072170][ T5314] ? __slab_err+0x15/0x20
[ 95.074237][ T5314] report_bug+0x16b/0x220
[ 95.076185][ T5314] ? __slab_err+0x15/0x20
[ 95.078081][ T5314] ? __slab_err+0x17/0x20
[ 95.079960][ T5314] handle_bug+0x9c/0x200
[ 95.081857][ T5314] exc_invalid_op+0x1a/0x50
[ 95.083963][ T5314] asm_exc_invalid_op+0x1a/0x20
[ 95.086084][ T5314] RIP: 0010:__slab_err+0x15/0x20
[ 95.088352][ T5314] Code: 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 e8 2b 00 00 00 bf 05 00 00 00 be 01 00 00 00 e8 cc 93 5e 00 90 <0f> 0b 90 c3 cc cc cc cc cc 66 90 90 90 90 90 90 90 90 90 90 90 90
[ 95.096625][ T5314] RSP: 0018:ffffc9000f667a80 EFLAGS: 00010087
[ 95.099258][ T5314] RAX: ffffffff8186c8da RBX: ffff888034eb2000 RCX: 0000000000100000
[ 95.102909][ T5314] RDX: ffffc9000ecc9000 RSI: 000000000005dedd RDI: 000000000005dede
[ 95.106463][ T5314] RBP: ffffea00004a9550 R08: ffffffff937330c7 R09: 1ffffffff26e6618
[ 95.109950][ T5314] R10: dffffc0000000000 R11: fffffbfff26e6619 R12: ffffea00004adc50
[ 95.113528][ T5314] R13: ffffea0000486900 R14: ffffc9000f667a98 R15: ffff8880004cde40
[ 95.116972][ T5314] ? add_taint+0x9a/0xe0
[ 95.118796][ T5314] __kmem_cache_shutdown+0x1a5/0x2a0
[ 95.121121][ T5314] ? virtio_gpu_free_vbufs+0x40/0x70
[ 95.123379][ T5314] kmem_cache_destroy+0x98/0x180
[ 95.125524][ T5314] virtio_gpu_free_vbufs+0x40/0x70
[ 95.127648][ T5314] ? __pfx_virtio_gpu_release+0x10/0x10
[ 95.130124][ T5314] virtio_gpu_release+0x55/0x140
[ 95.132483][ T5314] ? __pfx_virtio_gpu_release+0x10/0x10
[ 95.134789][ T5314] drm_dev_put+0xa9/0x120
[ 95.136654][ T5314] virtio_dev_remove+0x9c/0x1b0
[ 95.138771][ T5314] ? __pfx_virtio_dev_remove+0x10/0x10
[ 95.141293][ T5314] device_release_driver_internal+0x48b/0x880
[ 95.144115][ T5314] unbind_store+0x1a1/0x1d0
[ 95.146142][ T5314] ? __pfx_sysfs_kf_write+0x10/0x10
[ 95.148567][ T5314] kernfs_fop_write_iter+0x3a4/0x540
[ 95.150970][ T5314] vfs_write+0x612/0xba0
[ 95.152977][ T5314] ? __pfx_vfs_write+0x10/0x10
[ 95.155116][ T5314] ? __fget_files+0x2a/0x420
[ 95.157182][ T5314] ksys_write+0x150/0x270
[ 95.158890][ T5314] ? __pfx_ksys_write+0x10/0x10
[ 95.160880][ T5314] do_syscall_64+0x166/0x520
[ 95.162893][ T5314] ? trace_irq_disable+0x3b/0x140
[ 95.164941][ T5314] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 95.167351][ T5314] ? clear_bhb_loop+0x70/0xc0
[ 95.169294][ T5314] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 95.171765][ T5314] RIP: 0033:0x7f888879e0d9
[ 95.173702][ T5314] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 95.181986][ T5314] RSP: 002b:00007f88896bcfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 95.185588][ T5314] RAX: ffffffffffffffda RBX: 00007f8888a25fa0 RCX: 00007f888879e0d9
[ 95.188952][ T5314] RDX: 0000000000000007 RSI: 0000200000000140 RDI: 0000000000000004
[ 95.192376][ T5314] RBP: 00007f8888835024 R08: 0000000000000000 R09: 0000000000000000
[ 95.195911][ T5314] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 95.199331][ T5314] R13: 00007f8888a26038 R14: 00007f8888a25fa0 R15: 00007ffc392c6b98
[ 95.202834][ T5314]
[ 95.204653][ T5314] Kernel Offset: disabled
[ 95.206529][ T5314] Rebooting in 86400 seconds..