syzbot

ocfs2: Mounting device (7,5) on (node local, slot 0) with ordered data mode.
======================================================
WARNING: possible circular locking dependency detected
6.13.0-rc6-syzkaller-00006-g5428dc1906dd #0 Not tainted
------------------------------------------------------
syz.5.18581/17812 is trying to acquire lock:
ffff88805a4d40e8 (&oi->ip_io_mutex){+.+.}-{4:4}, at: ocfs2_read_blocks+0x23e/0x1600 fs/ocfs2/buffer_head_io.c:233

but task is already holding lock:
ffff88805a4d42c0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline]
ffff88805a4d42c0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3){+.+.}-{4:4}, at: ocfs2_group_extend+0x229/0xb30 fs/ocfs2/resize.c:296

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #11 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3){+.+.}-{4:4}:
       lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
       down_write+0x99/0x220 kernel/locking/rwsem.c:1577
       inode_lock include/linux/fs.h:818 [inline]
       ocfs2_reserve_suballoc_bits+0x192/0x4e70 fs/ocfs2/suballoc.c:786
       ocfs2_reserve_cluster_bitmap_bits+0xc5/0x1d0 fs/ocfs2/suballoc.c:1132
       ocfs2_local_alloc_reserve_for_window fs/ocfs2/localalloc.c:1108 [inline]
       ocfs2_local_alloc_slide_window fs/ocfs2/localalloc.c:1244 [inline]
       ocfs2_reserve_local_alloc_bits+0x95e/0x2840 fs/ocfs2/localalloc.c:669
       ocfs2_reserve_clusters_with_limit+0x1b8/0xb60 fs/ocfs2/suballoc.c:1166
       ocfs2_symlink+0x13a9/0x2d80 fs/ocfs2/namei.c:1921
       vfs_symlink+0x139/0x2e0 fs/namei.c:4669
       do_symlinkat+0x222/0x3a0 fs/namei.c:4695
       __do_sys_symlink fs/namei.c:4716 [inline]
       __se_sys_symlink fs/namei.c:4714 [inline]
       __x64_sys_symlink+0x7a/0x90 fs/namei.c:4714
       do_syscall_x64 arch/x86/entry/common.c:52 [inline]
       do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

-> #10 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{4:4}:
       lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
       down_write+0x99/0x220 kernel/locking/rwsem.c:1577
       inode_lock include/linux/fs.h:818 [inline]
       ocfs2_reserve_local_alloc_bits+0x132/0x2840 fs/ocfs2/localalloc.c:636
       ocfs2_reserve_clusters_with_limit+0x1b8/0xb60 fs/ocfs2/suballoc.c:1166
       ocfs2_reserve_clusters fs/ocfs2/suballoc.c:1227 [inline]
       ocfs2_lock_allocators+0x30a/0x630 fs/ocfs2/suballoc.c:2746
       ocfs2_extend_allocation+0x4ed/0x1bf0 fs/ocfs2/file.c:589
       ocfs2_extend_no_holes+0x1f6/0x4a0 fs/ocfs2/file.c:1027
       ocfs2_acquire_dquot+0x64d/0xb70 fs/ocfs2/quota_global.c:848
       dqget+0x772/0xeb0 fs/quota/dquot.c:977
       ocfs2_setattr+0xe99/0x1ef0 fs/ocfs2/file.c:1233
       notify_change+0xbcc/0xe90 fs/attr.c:552
       chown_common+0x501/0x850 fs/open.c:778
       do_fchownat+0x16a/0x240 fs/open.c:809
       __do_sys_lchown fs/open.c:834 [inline]
       __se_sys_lchown fs/open.c:832 [inline]
       __x64_sys_lchown+0x85/0xa0 fs/open.c:832
       do_syscall_x64 arch/x86/entry/common.c:52 [inline]
       do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

-> #9 (&ocfs2_quota_ip_alloc_sem_key){++++}-{4:4}:
       lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
       down_write+0x99/0x220 kernel/locking/rwsem.c:1577
       ocfs2_create_local_dquot+0x1de/0x1d70 fs/ocfs2/quota_local.c:1232
       ocfs2_acquire_dquot+0x833/0xb70 fs/ocfs2/quota_global.c:878
       dqget+0x772/0xeb0 fs/quota/dquot.c:977
       dquot_set_dqblk+0x2b/0xf30 fs/quota/dquot.c:2820
       quota_setquota+0x6de/0x850 fs/quota/quota.c:310
       __do_sys_quotactl fs/quota/quota.c:961 [inline]
       __se_sys_quotactl+0x2c4/0xa30 fs/quota/quota.c:917
       do_syscall_x64 arch/x86/entry/common.c:52 [inline]
       do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

-> #8 (&dquot->dq_lock){+.+.}-{4:4}:
       lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
       __mutex_lock_common kernel/locking/mutex.c:585 [inline]
       __mutex_lock+0x1ac/0xee0 kernel/locking/mutex.c:735
       wait_on_dquot fs/quota/dquot.c:354 [inline]
       dqget+0x6e6/0xeb0 fs/quota/dquot.c:972
       dquot_transfer+0x482/0x6d0 fs/quota/dquot.c:2154
       ext4_setattr+0xb49/0x1da0 fs/ext4/inode.c:5400
       notify_change+0xbcc/0xe90 fs/attr.c:552
       chown_common+0x501/0x850 fs/open.c:778
       do_fchownat+0x16a/0x240 fs/open.c:809
       __do_sys_lchown fs/open.c:834 [inline]
       __se_sys_lchown fs/open.c:832 [inline]
       __x64_sys_lchown+0x85/0xa0 fs/open.c:832
       do_syscall_x64 arch/x86/entry/common.c:52 [inline]
       do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

-> #7 (&ei->xattr_sem){++++}-{4:4}:
       lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
       down_read+0xb1/0xa40 kernel/locking/rwsem.c:1524
       ext4_readpage_inline+0x36/0x590 fs/ext4/inline.c:518
       ext4_read_folio+0x174/0x340 fs/ext4/inode.c:3185
       filemap_read_folio+0x14a/0x3b0 mm/filemap.c:2357
       filemap_create_folio mm/filemap.c:2488 [inline]
       filemap_get_pages+0x1099/0x2080 mm/filemap.c:2546
       filemap_read+0x452/0xf50 mm/filemap.c:2637
       __kernel_read+0x515/0x9d0 fs/read_write.c:523
       integrity_kernel_read+0xb0/0x100 security/integrity/iint.c:28
       ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:480 [inline]
       ima_calc_file_shash security/integrity/ima/ima_crypto.c:511 [inline]
       ima_calc_file_hash+0xae6/0x1b30 security/integrity/ima/ima_crypto.c:568
       ima_collect_measurement+0x520/0xb10 security/integrity/ima/ima_api.c:293
       process_measurement+0x1351/0x1fb0 security/integrity/ima/ima_main.c:372
       ima_file_check+0xd9/0x120 security/integrity/ima/ima_main.c:572
       security_file_post_open+0xb9/0x280 security/security.c:3121
       do_open fs/namei.c:3830 [inline]
       path_openat+0x2ccd/0x3590 fs/namei.c:3987
       do_filp_open+0x27f/0x4e0 fs/namei.c:4014
       do_sys_openat2+0x13e/0x1d0 fs/open.c:1402
       do_sys_open fs/open.c:1417 [inline]
       __do_sys_openat fs/open.c:1433 [inline]
       __se_sys_openat fs/open.c:1428 [inline]
       __x64_sys_openat+0x247/0x2a0 fs/open.c:1428
       do_syscall_x64 arch/x86/entry/common.c:52 [inline]
       do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

-> #6 (mapping.invalidate_lock){++++}-{4:4}:
       lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
       down_read+0xb1/0xa40 kernel/locking/rwsem.c:1524
       filemap_invalidate_lock_shared include/linux/fs.h:873 [inline]
       page_cache_ra_unbounded+0x142/0x720 mm/readahead.c:226
       do_async_mmap_readahead mm/filemap.c:3222 [inline]
       filemap_fault+0x818/0x1490 mm/filemap.c:3321
       __do_fault+0x137/0x390 mm/memory.c:4907
       do_read_fault mm/memory.c:5322 [inline]
       do_fault mm/memory.c:5456 [inline]
       do_pte_missing mm/memory.c:3979 [inline]
       handle_pte_fault+0x39eb/0x5ed0 mm/memory.c:5801
       __handle_mm_fault mm/memory.c:5944 [inline]
       handle_mm_fault+0x1106/0x1bb0 mm/memory.c:6112
       faultin_page mm/gup.c:1196 [inline]
       __get_user_pages+0x1c82/0x49e0 mm/gup.c:1494
       __get_user_pages_locked mm/gup.c:1760 [inline]
       get_dump_page+0x155/0x2f0 mm/gup.c:2278
       dump_user_range+0x14d/0x970 fs/coredump.c:943
       elf_core_dump+0x3e9f/0x4790 fs/binfmt_elf.c:2129
       do_coredump+0x229d/0x3100 fs/coredump.c:758
       get_signal+0x140b/0x1750 kernel/signal.c:3002
       arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
       exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
       exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
       irqentry_exit_to_user_mode+0x7e/0x250 kernel/entry/common.c:231
       exc_page_fault+0x590/0x8b0 arch/x86/mm/fault.c:1542
       asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623

-> #5 (&mm->mmap_lock){++++}-{4:4}:
       lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
       __might_fault+0xc6/0x120 mm/memory.c:6751
       _inline_copy_from_user include/linux/uaccess.h:162 [inline]
       _copy_from_user+0x2a/0xc0 lib/usercopy.c:18
       copy_from_user include/linux/uaccess.h:212 [inline]
       __blk_trace_setup kernel/trace/blktrace.c:626 [inline]
       blk_trace_ioctl+0x1ad/0x9a0 kernel/trace/blktrace.c:740
       blkdev_ioctl+0x40c/0x6a0 block/ioctl.c:682
       vfs_ioctl fs/ioctl.c:51 [inline]
       __do_sys_ioctl fs/ioctl.c:906 [inline]
       __se_sys_ioctl+0xf7/0x170 fs/ioctl.c:892
       do_syscall_x64 arch/x86/entry/common.c:52 [inline]
       do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

-> #4 (&q->debugfs_mutex){+.+.}-{4:4}:
       lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
       __mutex_lock_common kernel/locking/mutex.c:585 [inline]
       __mutex_lock+0x1ac/0xee0 kernel/locking/mutex.c:735
       blk_mq_init_sched+0x3fa/0x830 block/blk-mq-sched.c:473
       elevator_init_mq+0x20e/0x320 block/elevator.c:610
       add_disk_fwnode+0x10d/0xf80 block/genhd.c:413
       sd_probe+0xba6/0x1100 drivers/scsi/sd.c:4024
       really_probe+0x2ba/0xad0 drivers/base/dd.c:658
       __driver_probe_device+0x1a2/0x390 drivers/base/dd.c:800
       driver_probe_device+0x50/0x430 drivers/base/dd.c:830
       __device_attach_driver+0x2d6/0x530 drivers/base/dd.c:958
       bus_for_each_drv+0x250/0x2e0 drivers/base/bus.c:459
       __device_attach_async_helper+0x22d/0x300 drivers/base/dd.c:987
       async_run_entry_fn+0xaa/0x420 kernel/async.c:129
       process_one_work kernel/workqueue.c:3229 [inline]
       process_scheduled_works+0xa68/0x1840 kernel/workqueue.c:3310
       worker_thread+0x870/0xd30 kernel/workqueue.c:3391
       kthread+0x2f2/0x390 kernel/kthread.c:389
       ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
       ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

-> #3 (&q->q_usage_counter(queue)#50){++++}-{0:0}:
       lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
       blk_queue_enter+0xe1/0x600 block/blk-core.c:328
       blk_mq_alloc_request+0x4fa/0xaa0 block/blk-mq.c:652
       scsi_alloc_request drivers/scsi/scsi_lib.c:1222 [inline]
       scsi_execute_cmd+0x177/0x1090 drivers/scsi/scsi_lib.c:304
       read_capacity_16+0x2b4/0x1450 drivers/scsi/sd.c:2655
       sd_read_capacity drivers/scsi/sd.c:2824 [inline]
       sd_revalidate_disk+0x1013/0xbce0 drivers/scsi/sd.c:3734
       sd_probe+0x9fa/0x1100 drivers/scsi/sd.c:4010
       really_probe+0x2ba/0xad0 drivers/base/dd.c:658
       __driver_probe_device+0x1a2/0x390 drivers/base/dd.c:800
       driver_probe_device+0x50/0x430 drivers/base/dd.c:830
       __device_attach_driver+0x2d6/0x530 drivers/base/dd.c:958
       bus_for_each_drv+0x250/0x2e0 drivers/base/bus.c:459
       __device_attach_async_helper+0x22d/0x300 drivers/base/dd.c:987
       async_run_entry_fn+0xaa/0x420 kernel/async.c:129
       process_one_work kernel/workqueue.c:3229 [inline]
       process_scheduled_works+0xa68/0x1840 kernel/workqueue.c:3310
       worker_thread+0x870/0xd30 kernel/workqueue.c:3391
       kthread+0x2f2/0x390 kernel/kthread.c:389
       ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
       ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

-> #2 (&q->limits_lock){+.+.}-{4:4}:
       lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
       __mutex_lock_common kernel/locking/mutex.c:585 [inline]
       __mutex_lock+0x1ac/0xee0 kernel/locking/mutex.c:735
       queue_limits_start_update include/linux/blkdev.h:947 [inline]
       loop_reconfigure_limits+0x43f/0x900 drivers/block/loop.c:998
       loop_set_block_size drivers/block/loop.c:1473 [inline]
       lo_simple_ioctl drivers/block/loop.c:1496 [inline]
       lo_ioctl+0x1351/0x1f50 drivers/block/loop.c:1559
       blkdev_ioctl+0x57f/0x6a0 block/ioctl.c:693
       vfs_ioctl fs/ioctl.c:51 [inline]
       __do_sys_ioctl fs/ioctl.c:906 [inline]
       __se_sys_ioctl+0xf7/0x170 fs/ioctl.c:892
       do_syscall_x64 arch/x86/entry/common.c:52 [inline]
       do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

-> #1 (&q->q_usage_counter(io)#23){++++}-{0:0}:
       lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
       bio_queue_enter block/blk.h:75 [inline]
       blk_mq_submit_bio+0x1536/0x2390 block/blk-mq.c:3090
       __submit_bio+0x2c6/0x560 block/blk-core.c:629
       __submit_bio_noacct_mq block/blk-core.c:710 [inline]
       submit_bio_noacct_nocheck+0x4d3/0xe30 block/blk-core.c:739
       ocfs2_read_blocks+0x8d9/0x1600 fs/ocfs2/buffer_head_io.c:330
       ocfs2_read_inode_block_full fs/ocfs2/inode.c:1593 [inline]
       ocfs2_read_inode_block+0x106/0x1e0 fs/ocfs2/inode.c:1605
       ocfs2_get_clusters+0x3d2/0xbd0 fs/ocfs2/extent_map.c:615
       ocfs2_extent_map_get_blocks+0x24c/0x7d0 fs/ocfs2/extent_map.c:668
       ocfs2_read_virt_blocks+0x313/0xb10 fs/ocfs2/extent_map.c:983
       ocfs2_read_dir_block fs/ocfs2/dir.c:508 [inline]
       ocfs2_find_entry_el fs/ocfs2/dir.c:715 [inline]
       ocfs2_find_entry+0x43b/0x2730 fs/ocfs2/dir.c:1080
       ocfs2_find_files_on_disk+0xff/0x360 fs/ocfs2/dir.c:1981
       ocfs2_lookup_ino_from_name+0xb1/0x1e0 fs/ocfs2/dir.c:2003
       _ocfs2_get_system_file_inode fs/ocfs2/sysfile.c:136 [inline]
       ocfs2_get_system_file_inode+0x305/0x7b0 fs/ocfs2/sysfile.c:112
       ocfs2_init_global_system_inodes+0x32c/0x730 fs/ocfs2/super.c:457
       ocfs2_initialize_super fs/ocfs2/super.c:2248 [inline]
       ocfs2_fill_super+0x2f5b/0x5760 fs/ocfs2/super.c:994
       mount_bdev+0x20c/0x2d0 fs/super.c:1693
       legacy_get_tree+0xf0/0x190 fs/fs_context.c:662
       vfs_get_tree+0x92/0x2b0 fs/super.c:1814
       do_new_mount+0x2be/0xb40 fs/namespace.c:3507
       do_mount fs/namespace.c:3847 [inline]
       __do_sys_mount fs/namespace.c:4057 [inline]
       __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4034
       do_syscall_x64 arch/x86/entry/common.c:52 [inline]
       do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

-> #0 (&oi->ip_io_mutex){+.+.}-{4:4}:
       check_prev_add kernel/locking/lockdep.c:3161 [inline]
       check_prevs_add kernel/locking/lockdep.c:3280 [inline]
       validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3904
       __lock_acquire+0x1397/0x2100 kernel/locking/lockdep.c:5226
       lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
       __mutex_lock_common kernel/locking/mutex.c:585 [inline]
       __mutex_lock+0x1ac/0xee0 kernel/locking/mutex.c:735
       ocfs2_read_blocks+0x23e/0x1600 fs/ocfs2/buffer_head_io.c:233
       ocfs2_read_inode_block_full fs/ocfs2/inode.c:1593 [inline]
       ocfs2_read_inode_block+0x106/0x1e0 fs/ocfs2/inode.c:1605
       ocfs2_assign_bh fs/ocfs2/dlmglue.c:2414 [inline]
       ocfs2_inode_lock_full_nested+0x300/0x1be0 fs/ocfs2/dlmglue.c:2509
       ocfs2_group_extend+0x246/0xb30 fs/ocfs2/resize.c:298
       ocfs2_ioctl+0x771/0x7d0 fs/ocfs2/ioctl.c:873
       vfs_ioctl fs/ioctl.c:51 [inline]
       __do_sys_ioctl fs/ioctl.c:906 [inline]
       __se_sys_ioctl+0xf7/0x170 fs/ioctl.c:892
       do_syscall_x64 arch/x86/entry/common.c:52 [inline]
       do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

other info that might help us debug this:

Chain exists of:
  &oi->ip_io_mutex --> &ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4 --> &ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3);
                               lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4);
                               lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3);
  lock(&oi->ip_io_mutex);

 *** DEADLOCK ***

2 locks held by syz.5.18581/17812:
 #0: ffff88807c04a420 (sb_writers#28){.+.+}-{0:0}, at: mnt_want_write_file+0x5e/0x200 fs/namespace.c:559
 #1: ffff88805a4d42c0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline]
 #1: ffff88805a4d42c0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3){+.+.}-{4:4}, at: ocfs2_group_extend+0x229/0xb30 fs/ocfs2/resize.c:296

stack backtrace:
CPU: 0 UID: 0 PID: 17812 Comm: syz.5.18581 Not tainted 6.13.0-rc6-syzkaller-00006-g5428dc1906dd #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 print_circular_bug+0x13a/0x1b0 kernel/locking/lockdep.c:2074
 check_noncircular+0x36a/0x4a0 kernel/locking/lockdep.c:2206
 check_prev_add kernel/locking/lockdep.c:3161 [inline]
 check_prevs_add kernel/locking/lockdep.c:3280 [inline]
 validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3904
 __lock_acquire+0x1397/0x2100 kernel/locking/lockdep.c:5226
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849
 __mutex_lock_common kernel/locking/mutex.c:585 [inline]
 __mutex_lock+0x1ac/0xee0 kernel/locking/mutex.c:735
 ocfs2_read_blocks+0x23e/0x1600 fs/ocfs2/buffer_head_io.c:233
 ocfs2_read_inode_block_full fs/ocfs2/inode.c:1593 [inline]
 ocfs2_read_inode_block+0x106/0x1e0 fs/ocfs2/inode.c:1605
 ocfs2_assign_bh fs/ocfs2/dlmglue.c:2414 [inline]
 ocfs2_inode_lock_full_nested+0x300/0x1be0 fs/ocfs2/dlmglue.c:2509
 ocfs2_group_extend+0x246/0xb30 fs/ocfs2/resize.c:298
 ocfs2_ioctl+0x771/0x7d0 fs/ocfs2/ioctl.c:873
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl+0xf7/0x170 fs/ioctl.c:892
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f80a2785d29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f80a05f6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f80a2975fa0 RCX: 00007f80a2785d29
RDX: 00000000200004c0 RSI: 0000000040046f01 RDI: 0000000000000004
RBP: 00007f80a2801b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f80a2975fa0 R15: 00007ffd9cd954d8
 </TASK>