EXT4-fs: Ignoring removed orlov option
==================================================================
BUG: KCSAN: data-race in _prb_read_valid / prb_reserve

write to 0xffffffff86706450 of 8 bytes by task 7783 on cpu 1:
 prb_reserve+0x740/0xb60
 vprintk_store+0x558/0x870 kernel/printk/printk.c:2326
 vprintk_emit+0x15e/0x680 kernel/printk/printk.c:2408
 vprintk_default+0x26/0x30 kernel/printk/printk.c:2447
 vprintk+0x75/0x80 kernel/printk/printk_safe.c:86
 _printk+0x7a/0xa0 kernel/printk/printk.c:2457
 set_capacity_and_notify+0xff/0x160 block/genhd.c:86
 loop_set_size+0x2e/0x70 drivers/block/loop.c:232
 loop_configure+0x8a6/0xa30 drivers/block/loop.c:1101
 lo_ioctl+0x5f6/0x11c0
 blkdev_ioctl+0x359/0x450 block/ioctl.c:693
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl+0xc9/0x140 fs/ioctl.c:892
 __x64_sys_ioctl+0x43/0x50 fs/ioctl.c:892
 x64_sys_call+0x1690/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

read to 0xffffffff86706450 of 8 bytes by task 7756 on cpu 0:
 desc_read kernel/printk/printk_ringbuffer.c:486 [inline]
 prb_first_seq kernel/printk/printk_ringbuffer.c:1957 [inline]
 _prb_read_valid+0x3bb/0xba0 kernel/printk/printk_ringbuffer.c:2114
 desc_update_last_finalized kernel/printk/printk_ringbuffer.c:1515 [inline]
 prb_final_commit+0x144/0x1f0 kernel/printk/printk_ringbuffer.c:1782
 vprintk_store+0x75d/0x870 kernel/printk/printk.c:2352
 vprintk_emit+0x15e/0x680 kernel/printk/printk.c:2408
 vprintk_default+0x26/0x30 kernel/printk/printk.c:2447
 vprintk+0x75/0x80 kernel/printk/printk_safe.c:86
 _printk+0x7a/0xa0 kernel/printk/printk.c:2457
 __ext4_msg+0x134/0x1a0 fs/ext4/super.c:1000
 ext4_parse_param+0x839/0xf40 fs/ext4/super.c:2194
 vfs_parse_fs_param+0x13b/0x290 fs/fs_context.c:146
 vfs_parse_fs_string fs/fs_context.c:188 [inline]
 vfs_parse_monolithic_sep fs/fs_context.c:230 [inline]
 generic_parse_monolithic+0x165/0x1d0 fs/fs_context.c:258
 parse_monolithic_mount_data+0x43/0x50 fs/fs_context.c:719
 do_remount fs/namespace.c:3048 [inline]
 path_mount+0x8e7/0xb30 fs/namespace.c:3832
 do_mount fs/namespace.c:3853 [inline]
 __do_sys_mount fs/namespace.c:4063 [inline]
 __se_sys_mount+0x27c/0x2d0 fs/namespace.c:4040
 __x64_sys_mount+0x67/0x80 fs/namespace.c:4040
 x64_sys_call+0x2c84/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0x00000000000034c6 -> 0x00000000000054c6

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 7756 Comm: syz.7.11750 Not tainted 6.13.0-rc6-syzkaller-00046-g0b7958fa05d5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
==================================================================
EXT4-fs: Journaled quota options ignored when QUOTA feature is enabled
EXT4-fs (loop7): warning: mounting fs with errors, running e2fsck is recommended
EXT4-fs error (device loop7): __ext4_remount:6749: comm syz.7.11750: Abort forced by user
EXT4-fs (loop7): Remounting filesystem read-only
EXT4-fs (loop7): re-mounted 00000000-0000-0000-0000-000000000000 r/w. Quota mode: writeback.
ext4 filesystem being remounted at /281/bus supports timestamps until 2038-01-19 (0x7fffffff)