================================================================== BUG: KCSAN: data-race in hrtimer_interrupt / print_tickdevice write to 0xffff888237c1be98 of 8 bytes by interrupt on cpu 0: hrtimer_interrupt+0x94/0x7c0 kernel/time/hrtimer.c:1790 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1096 [inline] __sysvec_apic_timer_interrupt+0xa7/0x250 arch/x86/kernel/apic/apic.c:1113 sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1107 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649 static_key_false include/linux/jump_label.h:207 [inline] trace_block_bio_remap include/trace/events/block.h:479 [inline] blk_partition_remap block/blk-core.c:552 [inline] submit_bio_noacct+0x4e4/0xa50 block/blk-core.c:736 submit_bio+0x101/0x110 block/blk-core.c:838 submit_bh_wbc+0x2b1/0x2f0 fs/buffer.c:2702 submit_bh+0x1c/0x20 fs/buffer.c:2707 jbd2_journal_commit_transaction+0x1624/0x34e0 fs/jbd2/commit.c:763 kjournald2+0x242/0x420 fs/jbd2/journal.c:210 kthread+0x1ac/0x1e0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 read to 0xffff888237c1be98 of 8 bytes by task 8512 on cpu 1: print_tickdevice+0x144/0x340 kernel/time/timer_list.c:204 timer_list_show+0x79/0x180 kernel/time/timer_list.c:296 seq_read_iter+0x612/0x8f0 fs/seq_file.c:272 proc_reg_read_iter+0x10e/0x180 fs/proc/inode.c:305 call_read_iter include/linux/fs.h:2183 [inline] generic_file_splice_read+0xe3/0x290 fs/splice.c:309 do_splice_to fs/splice.c:793 [inline] splice_direct_to_actor+0x25a/0x5f0 fs/splice.c:865 do_splice_direct+0x104/0x180 fs/splice.c:974 do_sendfile+0x3b8/0x950 fs/read_write.c:1255 __do_sys_sendfile64 fs/read_write.c:1323 [inline] __se_sys_sendfile64 fs/read_write.c:1309 [inline] __x64_sys_sendfile64+0x110/0x150 fs/read_write.c:1309 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd value changed: 0x000000405b12e521 -> 0x000000405b2048d4 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 8512 Comm: syz-executor.4 Not tainted 6.2.0-rc8-syzkaller-00151-g925cf0457d7e-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 ==================================================================