================================================================== BUG: KCSAN: data-race in acpi_ut_trace / acpi_ut_trace_ptr read-write to 0xffffffff89406508 of 4 bytes by task 11837 on cpu 1: acpi_ut_trace+0x44/0x180 drivers/acpi/acpica/utdebug.c:268 acpi_ns_build_internal_name+0x64/0x5d0 drivers/acpi/acpica/nsutils.c:208 acpi_ns_internalize_name+0x265/0x310 drivers/acpi/acpica/nsutils.c:339 acpi_ns_get_node_unlocked+0xed/0x2d0 drivers/acpi/acpica/nsutils.c:666 acpi_ns_get_node+0x76/0xc0 drivers/acpi/acpica/nsutils.c:726 acpi_get_handle+0xfd/0x180 drivers/acpi/acpica/nsxfname.c:98 acpi_has_method+0x46/0x80 drivers/acpi/utils.c:672 acpi_pci_set_power_state+0x5d/0x190 drivers/pci/pci-acpi.c:1084 platform_pci_set_power_state drivers/pci/pci.c:1068 [inline] pci_power_up+0x40/0x3b0 drivers/pci/pci.c:1306 pci_pm_power_up_and_verify_state+0x29/0x130 drivers/pci/pci.c:3153 pci_pm_default_resume_early drivers/pci/pci-driver.c:591 [inline] pci_pm_resume_noirq+0xcb/0x320 drivers/pci/pci-driver.c:996 dpm_run_callback+0x53/0x2f0 drivers/base/power/main.c:510 device_resume_noirq+0x851/0x880 drivers/base/power/main.c:857 async_resume_noirq+0x2c/0x40 drivers/base/power/main.c:879 async_run_entry_fn+0x52/0x180 kernel/async.c:129 process_one_work kernel/workqueue.c:3322 [inline] process_scheduled_works+0x4d4/0x9a0 kernel/workqueue.c:3405 worker_thread+0x569/0x750 kernel/workqueue.c:3486 kthread+0x221/0x270 kernel/kthread.c:436 ret_from_fork+0x146/0x330 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 read-write to 0xffffffff89406508 of 4 bytes by task 3720 on cpu 0: acpi_ut_trace_ptr+0x49/0x180 drivers/acpi/acpica/utdebug.c:306 acpi_ns_get_node+0x3c/0xc0 drivers/acpi/acpica/nsutils.c:719 acpi_get_handle+0xfd/0x180 drivers/acpi/acpica/nsxfname.c:98 acpi_has_method+0x46/0x80 drivers/acpi/utils.c:672 acpi_pci_set_power_state+0x5d/0x190 drivers/pci/pci-acpi.c:1084 platform_pci_set_power_state drivers/pci/pci.c:1068 [inline] pci_power_up+0x40/0x3b0 drivers/pci/pci.c:1306 pci_pm_power_up_and_verify_state+0x29/0x130 drivers/pci/pci.c:3153 pci_pm_default_resume_early drivers/pci/pci-driver.c:591 [inline] pci_pm_resume_noirq+0xcb/0x320 drivers/pci/pci-driver.c:996 dpm_run_callback+0x53/0x2f0 drivers/base/power/main.c:510 device_resume_noirq+0x851/0x880 drivers/base/power/main.c:857 async_resume_noirq+0x2c/0x40 drivers/base/power/main.c:879 async_run_entry_fn+0x52/0x180 kernel/async.c:129 process_one_work kernel/workqueue.c:3322 [inline] process_scheduled_works+0x4d4/0x9a0 kernel/workqueue.c:3405 worker_thread+0x569/0x750 kernel/workqueue.c:3486 kthread+0x221/0x270 kernel/kthread.c:436 ret_from_fork+0x146/0x330 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 value changed: 0x00000003 -> 0x00000000 Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 3720 Comm: kworker/u8:73 Tainted: G W syzkaller #0 PREEMPT(lazy) Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Workqueue: async async_run_entry_fn ==================================================================