Freezing user space processes ... (elapsed 0.066 seconds) done. OOM killer disabled. Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done. printk: Suspending console(s) (use no_console_suspend to debug) ACPI: Preparing to enter system sleep state S3 PM: Saving platform NVS memory Disabling non-boot CPUs ... smpboot: CPU 1 is now offline kvm-clock: cpu 0, msr 4506001, primary cpu clock, resume ACPI: Low-level resume complete PM: Restoring platform NVS memory kvm-guest: stealtime: cpu 0, msr 237c170c0 Enabling non-boot CPUs ... x86: Booting SMP configuration: smpboot: Booting Node 0 Processor 1 APIC 0x1 CPU1 is up ACPI: Waking up from system sleep state S3 ================================================================== BUG: KCSAN: data-race in device_resume_noirq / dpm_noirq_resume_devices write to 0xffff8881002d619c of 2 bytes by task 317 on cpu 0: device_resume_noirq+0x883/0xa00 drivers/base/power/main.c:657 async_resume_noirq+0x2b/0x130 drivers/base/power/main.c:689 async_run_entry_fn+0x4a/0x170 kernel/async.c:127 process_one_work+0x3e9/0x8f0 kernel/workqueue.c:2276 worker_thread+0x636/0xae0 kernel/workqueue.c:2422 kthread+0x1d0/0x1f0 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 read to 0xffff8881002d619c of 2 bytes by task 17105 on cpu 1: is_async drivers/base/power/main.c:667 [inline] dpm_noirq_resume_devices+0x2ad/0x7c0 drivers/base/power/main.c:719 dpm_resume_noirq+0xf/0x20 drivers/base/power/main.c:749 suspend_enter+0x594/0x8f0 kernel/power/suspend.c:459 suspend_devices_and_enter+0x1cb/0x500 kernel/power/suspend.c:505 enter_state+0x274/0x530 kernel/power/suspend.c:586 pm_suspend+0x4b/0x130 kernel/power/suspend.c:613 state_store+0x1f2/0x210 kernel/power/main.c:658 kobj_attr_store+0x40/0x60 lib/kobject.c:856 sysfs_kf_write+0xa6/0xc0 fs/sysfs/file.c:139 kernfs_fop_write_iter+0x1d3/0x2d0 fs/kernfs/file.c:296 call_write_iter include/linux/fs.h:2114 [inline] do_iter_readv_writev+0x2cb/0x360 fs/read_write.c:740 do_iter_write+0x112/0x4c0 fs/read_write.c:866 vfs_iter_write+0x4c/0x70 fs/read_write.c:907 iter_file_splice_write+0x40a/0x750 fs/splice.c:689 do_splice_from fs/splice.c:767 [inline] direct_splice_actor+0x80/0xa0 fs/splice.c:936 splice_direct_to_actor+0x345/0x650 fs/splice.c:891 do_splice_direct+0xf5/0x170 fs/splice.c:979 do_sendfile+0x773/0xda0 fs/read_write.c:1260 __do_sys_sendfile64 fs/read_write.c:1319 [inline] __se_sys_sendfile64 fs/read_write.c:1311 [inline] __x64_sys_sendfile64+0xa9/0x130 fs/read_write.c:1311 do_syscall_64+0x4a/0x90 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0x017e -> 0x015e Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 17105 Comm: syz-executor.5 Not tainted 5.13.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ================================================================== OOM killer enabled. Restarting tasks ... done. PM: suspend exit