------------[ cut here ]------------
kernfs: can not remove 'nr_tags', no directory
WARNING: CPU: 0 PID: 3048 at fs/kernfs/dir.c:1580 kernfs_remove_by_name_ns+0x84/0xb8 fs/kernfs/dir.c:1579
Modules linked in:
CPU: 0 PID: 3048 Comm: syz-executor242 Not tainted 6.0.0-rc7-syzkaller-18095-gbbed346d5a96 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : kernfs_remove_by_name_ns+0x84/0xb8 fs/kernfs/dir.c:1579
lr : kernfs_remove_by_name_ns+0x84/0xb8 fs/kernfs/dir.c:1579
sp : ffff8000126aba60
x29: ffff8000126aba60 x28: ffff80000cf01000 x27: ffff0000c5d4ed08
x26: ffff0000c5d4ed08 x25: ffff8000126abb88 x24: ffff0000c3db7400
x23: ffff0000c4f28000 x22: 0000000000000000 x21: 0000000000000000
x20: ffff80000cc5b39c x19: 0000000000000000 x18: 00000000000000c0
x17: ffff80000dd0b198 x16: ffff80000db49158 x15: ffff0000c65b9a80
x14: 0000000000000000 x13: 00000000ffffffff x12: ffff0000c65b9a80
x11: ff808000081c0d5c x10: 0000000000000000 x9 : a7cdf6d7a77a1400
x8 : a7cdf6d7a77a1400 x7 : ffff80000819545c x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000100000000 x0 : 000000000000002e
Call trace:
 kernfs_remove_by_name_ns+0x84/0xb8 fs/kernfs/dir.c:1579
 kernfs_remove_by_name include/linux/kernfs.h:615 [inline]
 remove_files fs/sysfs/group.c:28 [inline]
 sysfs_remove_group+0x68/0x160 fs/sysfs/group.c:288
 sysfs_remove_groups+0x3c/0x78 fs/sysfs/group.c:312
 __kobject_del+0x34/0x1f8 lib/kobject.c:579
 kobject_del+0x28/0x110 lib/kobject.c:611
 blk_mq_unregister_hctx block/blk-mq-sysfs.c:181 [inline]
 blk_mq_sysfs_unregister_hctxs+0xc4/0x13c block/blk-mq-sysfs.c:302
 __blk_mq_update_nr_hw_queues block/blk-mq.c:4548 [inline]
 blk_mq_update_nr_hw_queues+0x254/0x6e0 block/blk-mq.c:4594
 nbd_start_device+0xc4/0x500 drivers/block/nbd.c:1357
 nbd_start_device_ioctl+0x3c/0x25c drivers/block/nbd.c:1407
 __nbd_ioctl+0x16c/0x334 drivers/block/nbd.c:1481
 nbd_ioctl+0xec/0x13c drivers/block/nbd.c:1521
 blkdev_ioctl+0x24c/0x6d8 block/ioctl.c:614
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __arm64_sys_ioctl+0xd0/0x140 fs/ioctl.c:856
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall arch/arm64/kernel/syscall.c:52 [inline]
 el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206
 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:636
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
irq event stamp: 2802
hardirqs last  enabled at (2801): [<ffff8000081befc8>] __up_console_sem+0xb0/0xfc kernel/printk/printk.c:264
hardirqs last disabled at (2802): [<ffff80000bfb5fbc>] el1_dbg+0x24/0x5c arch/arm64/kernel/entry-common.c:404
softirqs last  enabled at (240): [<ffff80000801c33c>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (238): [<ffff80000801c308>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
kernfs: can not remove 'nr_reserved_tags', no directory
WARNING: CPU: 0 PID: 3048 at fs/kernfs/dir.c:1580 kernfs_remove_by_name_ns+0x84/0xb8 fs/kernfs/dir.c:1579
Modules linked in:
CPU: 0 PID: 3048 Comm: syz-executor242 Tainted: G        W          6.0.0-rc7-syzkaller-18095-gbbed346d5a96 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : kernfs_remove_by_name_ns+0x84/0xb8 fs/kernfs/dir.c:1579
lr : kernfs_remove_by_name_ns+0x84/0xb8 fs/kernfs/dir.c:1579
sp : ffff8000126aba60
x29: ffff8000126aba60 x28: ffff80000cf01000 x27: ffff0000c5d4ed08
x26: ffff0000c5d4ed08 x25: ffff8000126abb88 x24: ffff0000c3db7400
x23: ffff0000c4f28000 x22: 0000000000000000 x21: 0000000000000000
x20: ffff80000cc5b3a4 x19: 0000000000000000 x18: 00000000000000c0
x17: ffff80000dd0b198 x16: ffff80000db49158 x15: ffff0000c65b9a80
x14: 0000000000000000 x13: 00000000ffffffff x12: ffff0000c65b9a80
x11: ff808000081c0d5c x10: 0000000000000000 x9 : a7cdf6d7a77a1400
x8 : a7cdf6d7a77a1400 x7 : ffff80000819545c x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : ffff0001fefbecd0 x1 : 0000000100000000 x0 : 0000000000000037
Call trace:
 kernfs_remove_by_name_ns+0x84/0xb8 fs/kernfs/dir.c:1579
 kernfs_remove_by_name include/linux/kernfs.h:615 [inline]
 remove_files fs/sysfs/group.c:28 [inline]
 sysfs_remove_group+0x68/0x160 fs/sysfs/group.c:288
 sysfs_remove_groups+0x3c/0x78 fs/sysfs/group.c:312
 __kobject_del+0x34/0x1f8 lib/kobject.c:579
 kobject_del+0x28/0x110 lib/kobject.c:611
 blk_mq_unregister_hctx block/blk-mq-sysfs.c:181 [inline]
 blk_mq_sysfs_unregister_hctxs+0xc4/0x13c block/blk-mq-sysfs.c:302
 __blk_mq_update_nr_hw_queues block/blk-mq.c:4548 [inline]
 blk_mq_update_nr_hw_queues+0x254/0x6e0 block/blk-mq.c:4594
 nbd_start_device+0xc4/0x500 drivers/block/nbd.c:1357
 nbd_start_device_ioctl+0x3c/0x25c drivers/block/nbd.c:1407
 __nbd_ioctl+0x16c/0x334 drivers/block/nbd.c:1481
 nbd_ioctl+0xec/0x13c drivers/block/nbd.c:1521
 blkdev_ioctl+0x24c/0x6d8 block/ioctl.c:614
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __arm64_sys_ioctl+0xd0/0x140 fs/ioctl.c:856
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall arch/arm64/kernel/syscall.c:52 [inline]
 el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206
 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:636
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
irq event stamp: 2854
hardirqs last  enabled at (2853): [<ffff8000081befc8>] __up_console_sem+0xb0/0xfc kernel/printk/printk.c:264
hardirqs last disabled at (2854): [<ffff80000bfb5fbc>] el1_dbg+0x24/0x5c arch/arm64/kernel/entry-common.c:404
softirqs last  enabled at (2828): [<ffff8000080102e4>] _stext+0x2e4/0x37c
softirqs last disabled at (2805): [<ffff800008017c14>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:79
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
kernfs: can not remove 'cpu_list', no directory
WARNING: CPU: 0 PID: 3048 at fs/kernfs/dir.c:1580 kernfs_remove_by_name_ns+0x84/0xb8 fs/kernfs/dir.c:1579
Modules linked in:
CPU: 0 PID: 3048 Comm: syz-executor242 Tainted: G        W          6.0.0-rc7-syzkaller-18095-gbbed346d5a96 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : kernfs_remove_by_name_ns+0x84/0xb8 fs/kernfs/dir.c:1579
lr : kernfs_remove_by_name_ns+0x84/0xb8 fs/kernfs/dir.c:1579
sp : ffff8000126aba60
x29: ffff8000126aba60 x28: ffff80000cf01000 x27: ffff0000c5d4ed08
x26: ffff0000c5d4ed08 x25: ffff8000126abb88 x24: ffff0000c3db7400
x23: ffff0000c4f28000 x22: 0000000000000000 x21: 0000000000000000
x20: ffff80000cca5e6c x19: 0000000000000000 x18: 00000000000000c0
x17: ffff80000dd0b198 x16: ffff80000db49158 x15: ffff0000c65b9a80
x14: 0000000000000000 x13: 00000000ffffffff x12: ffff0000c65b9a80
x11: ff808000081c0d5c x10: 0000000000000000 x9 : a7cdf6d7a77a1400
x8 : a7cdf6d7a77a1400 x7 : ffff80000819545c x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : ffff0001fefbecd0 x1 : 0000000100000000 x0 : 000000000000002f
Call trace:
 kernfs_remove_by_name_ns+0x84/0xb8 fs/kernfs/dir.c:1579
 kernfs_remove_by_name include/linux/kernfs.h:615 [inline]
 remove_files fs/sysfs/group.c:28 [inline]
 sysfs_remove_group+0x68/0x160 fs/sysfs/group.c:288
 sysfs_remove_groups+0x3c/0x78 fs/sysfs/group.c:312
 __kobject_del+0x34/0x1f8 lib/kobject.c:579
 kobject_del+0x28/0x110 lib/kobject.c:611
 blk_mq_unregister_hctx block/blk-mq-sysfs.c:181 [inline]
 blk_mq_sysfs_unregister_hctxs+0xc4/0x13c block/blk-mq-sysfs.c:302
 __blk_mq_update_nr_hw_queues block/blk-mq.c:4548 [inline]
 blk_mq_update_nr_hw_queues+0x254/0x6e0 block/blk-mq.c:4594
 nbd_start_device+0xc4/0x500 drivers/block/nbd.c:1357
 nbd_start_device_ioctl+0x3c/0x25c drivers/block/nbd.c:1407
 __nbd_ioctl+0x16c/0x334 drivers/block/nbd.c:1481
 nbd_ioctl+0xec/0x13c drivers/block/nbd.c:1521
 blkdev_ioctl+0x24c/0x6d8 block/ioctl.c:614
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __arm64_sys_ioctl+0xd0/0x140 fs/ioctl.c:856
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall arch/arm64/kernel/syscall.c:52 [inline]
 el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206
 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:636
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
irq event stamp: 2898
hardirqs last  enabled at (2897): [<ffff8000081befc8>] __up_console_sem+0xb0/0xfc kernel/printk/printk.c:264
hardirqs last disabled at (2898): [<ffff80000bfb5fbc>] el1_dbg+0x24/0x5c arch/arm64/kernel/entry-common.c:404
softirqs last  enabled at (2872): [<ffff8000080102e4>] _stext+0x2e4/0x37c
softirqs last disabled at (2857): [<ffff800008017c14>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:79
---[ end trace 0000000000000000 ]---
debugfs: out of free dentries, can not create file 'busy'
block nbd0: shutting down sockets