================================================================== BUG: KCSAN: data-race in lbmIODone / lbmRead read-write to 0xffff888038c4dd88 of 4 bytes by interrupt on cpu 0: lbmIODone+0x48/0xa70 fs/jfs/jfs_logmgr.c:2193 bio_endio+0x28b/0x350 block/bio.c:1450 req_bio_endio block/blk-core.c:263 [inline] blk_update_request+0x4d5/0xb00 block/blk-core.c:1467 blk_mq_end_request+0x22/0x50 block/blk-mq.c:562 lo_complete_rq+0xca/0x180 drivers/block/loop.c:501 blk_done_softirq+0x145/0x190 block/blk-mq.c:586 __do_softirq+0x12c/0x2b1 kernel/softirq.c:298 run_ksoftirqd+0x13/0x20 kernel/softirq.c:653 smpboot_thread_fn+0x34f/0x520 kernel/smpboot.c:165 kthread+0x1fd/0x220 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 read to 0xffff888038c4dd88 of 4 bytes by task 409 on cpu 1: lbmRead+0x27f/0x320 fs/jfs/jfs_logmgr.c:2001 lmLogInit+0x5e9/0xaf0 fs/jfs/jfs_logmgr.c:1342 open_inline_log fs/jfs/jfs_logmgr.c:1183 [inline] lmLogOpen+0x2db/0x8f0 fs/jfs/jfs_logmgr.c:1077 jfs_mount_rw+0x7c/0x270 fs/jfs/jfs_mount.c:259 jfs_fill_super+0x363/0x570 fs/jfs/super.c:571 mount_bdev+0x1e2/0x280 fs/super.c:1419 jfs_do_mount+0x2d/0x40 fs/jfs/super.c:676 legacy_get_tree+0x70/0xc0 fs/fs_context.c:592 vfs_get_tree+0x4a/0x190 fs/super.c:1549 do_new_mount fs/namespace.c:2875 [inline] path_mount+0x119d/0x1c10 fs/namespace.c:3205 do_mount fs/namespace.c:3218 [inline] __do_sys_mount fs/namespace.c:3426 [inline] __se_sys_mount+0x23d/0x2e0 fs/namespace.c:3403 __x64_sys_mount+0x63/0x70 fs/namespace.c:3403 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 409 Comm: syz-executor.3 Not tainted 5.10.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================