WARNING: The mand mount option has been deprecated and and is ignored by this kernel. Remove the mand option from the mount to silence this warning. ======================================================= ================================================================== BUG: KCSAN: data-race in blk_mq_rq_ctx_init / blk_mq_rq_ctx_init read to 0xffff888101d0d550 of 8 bytes by task 5110 on cpu 0: blk_mq_rq_ctx_init+0x3ca/0x4e0 block/blk-mq.c:351 __blk_mq_alloc_request+0x270/0x290 block/blk-mq.c:406 blk_mq_submit_bio+0x27f/0xec0 block/blk-mq.c:2211 __submit_bio+0x41a/0x480 block/blk-core.c:929 __submit_bio_noacct_mq block/blk-core.c:1009 [inline] submit_bio_noacct+0x46d/0x530 block/blk-core.c:1039 submit_bio+0x10c/0x190 submit_bh_wbc+0x2f3/0x330 fs/buffer.c:3054 submit_bh fs/buffer.c:3060 [inline] block_read_full_page+0x79c/0x880 fs/buffer.c:2339 blkdev_readpage+0x18/0x20 block/fops.c:342 filemap_read_page+0x6f/0x210 mm/filemap.c:2381 filemap_update_page mm/filemap.c:2459 [inline] filemap_get_pages mm/filemap.c:2568 [inline] filemap_read+0xccc/0x1220 mm/filemap.c:2628 generic_file_read_iter+0x75/0x2c0 mm/filemap.c:2779 blkdev_read_iter+0xb9/0xf0 block/fops.c:545 call_read_iter include/linux/fs.h:2157 [inline] new_sync_read fs/read_write.c:404 [inline] vfs_read+0x66c/0x750 fs/read_write.c:485 ksys_read+0xd9/0x190 fs/read_write.c:623 __do_sys_read fs/read_write.c:633 [inline] __se_sys_read fs/read_write.c:631 [inline] __x64_sys_read+0x3e/0x50 fs/read_write.c:631 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae write to 0xffff888101d0d550 of 8 bytes by task 7579 on cpu 1: blk_mq_rq_ctx_init+0x3dc/0x4e0 block/blk-mq.c:351 __blk_mq_alloc_request+0x270/0x290 block/blk-mq.c:406 blk_mq_submit_bio+0x27f/0xec0 block/blk-mq.c:2211 __submit_bio+0x41a/0x480 block/blk-core.c:929 __submit_bio_noacct_mq block/blk-core.c:1009 [inline] submit_bio_noacct+0x46d/0x530 block/blk-core.c:1039 submit_bio+0x10c/0x190 submit_bh_wbc+0x2f3/0x330 fs/buffer.c:3054 submit_bh fs/buffer.c:3060 [inline] write_dirty_buffer+0xde/0xf0 fs/buffer.c:3128 fat_sync_bhs+0x52/0x160 fs/fat/misc.c:361 fat_zeroed_cluster+0x2b3/0x5e0 fs/fat/dir.c:1108 fat_alloc_new_dir+0x48d/0x500 fs/fat/dir.c:1185 vfat_mkdir+0x81/0x230 fs/fat/namei_vfat.c:861 vfs_mkdir+0x2c3/0x3e0 fs/namei.c:3885 do_mkdirat+0x12e/0x2c0 fs/namei.c:3911 __do_sys_mkdirat fs/namei.c:3926 [inline] __se_sys_mkdirat fs/namei.c:3924 [inline] __x64_sys_mkdirat+0x4c/0x60 fs/namei.c:3924 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0x0000000000000ca1 -> 0x0000000000000ca2 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 7579 Comm: syz-executor.1 Not tainted 5.15.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================