Freezing user space processes ... (elapsed 0.012 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 / dpm_wait_for_superior
write to 0xffff88810106e19c of 2 bytes by task 5713 on cpu 0:
device_resume+0x116/0x940 drivers/base/power/main.c:926
async_resume+0x2b/0x130 drivers/base/power/main.c:987
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 0xffff88810106e19c of 2 bytes by task 8626 on cpu 1:
dpm_wait drivers/base/power/main.c:245 [inline]
dpm_wait_for_superior+0xc8/0x270 drivers/base/power/main.c:303
device_resume+0xe6/0x940 drivers/base/power/main.c:916
dpm_resume+0x277/0x830 drivers/base/power/main.c:1023
dpm_resume_end+0xf/0x20 drivers/base/power/main.c:1138
suspend_devices_and_enter+0x24b/0x500 kernel/power/suspend.c:510
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: 0x011e -> 0x0106
Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 8626 Comm: syz-executor.0 Not tainted 5.13.0-rc7-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
PM: suspend entry (deep)
Filesystems sync: 0.004 seconds
Freezing user space processes ... (elapsed 0.007 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
OOM killer enabled.
Restarting tasks ...
done.
PM: suspend exit