Log Entries This document describes what the log entries mean. Each entry has a matching section. Please add a section here for new entries and some brief description of what it means and how to parse it. CLIENT_ID DEVICETYPE LOGDATE amd_pmc_idlemask Value of the SMU idlemask amd_s0ix_stats Contains the time when the system last entered/exited S0ix and how long it remained in that state. amd_smu_fw_info Contains additional timing information about the last S0ix suspend including how long it took to enter and exit that state. amd_stb Base64 encoded contents of the smart trace buffer, contains timestamped POST codes and logs from various other systems. Requires an AMD specific tool to decode. amdgpu_gem_info amdgpu_gtt_mm amdgpu_vram_mm android_app_storage arcvm_console_output atmel_tp_deltas atmel_tp_refs atmel_ts_deltas atmel_ts_refs atrus_logs audit_log Recent events in audit.log as generated by auditd(8). Only includes audit events of type=SYSCALL and type=AVC (SELinux denials). authpolicy bio_crypto_init.LATEST bio_crypto_init.PREVIOUS bio_fw_updater.LATEST bio_fw_updater.PREVIOUS biod.LATEST biod.PREVIOUS bios_info bios_log Log entries stored in console section of coreboot memory region. Contains logs from things such as coreboot and depthcarge before Linux kernel starts. bios_stacked_times Same as bios_times, but in flame graph compatible stacked format and with enum names instead of human-readable descriptions. bios_times This entry contains timestamps of events saved by BIOS and its components. Timestamps are in human-readable form with description and value. blkid bluetooth.log This file records the debuggable logs generated by Bluetooth daemons ($syslogseverity < ‘7’), including logs from bluetoothd, btmanagerd, and btadapterd. bootstat_summary borealis_frames Frame timings from apps running in the Borealis VM. 16 KiB. borealis_frames_summary Summarization of borealis frame timings. 2 KiB. borealis_proton_crash_reports Contains the most recent Proton crash dump containing debug info. ~11 KiB. borealis_steam_compat_logs Contains versions of Steam compatibility tools used per game in the last 5 min. Only one line (less than 100 chars) printed per game. borealis_xwindump If the Borealis VM is running, displays a list of all Borealis windows and each window's title, size, and other X properties, as seen by the X server. Expected size is ~20 KiB. bt_usb_disconnects buddyinfo Various virtual memory fragmentation details. See the /proc/buddyinfo section of the proc(5) man page for an explanation of each field. cbi_info cheets_log chrome_system_log chrome_system_log.PREVIOUS chromeos-pgmem clobber-state.log clobber.log console-ramoops Contains logs from Linux kernel from previous boot, in pstore ramoops logger. cpuinfo Various CPU & system architecture details. Often shows exact CPU models and supported hardware flags, as well as how many CPUs and cores that are available. See the /proc/cpuinfo section of the proc(5) man page for more details. cr50_version cros_ec.log cros_ec.previous cros_ec_panicinfo cros_ec_pdinfo cros_fp.log cros_fp.previous cros_fp_panicinfo FPMCU Panic Data in human readable form. cros_ish.log cros_ish.previous cros_scp.log cros_scp.previous cros_tp console cros_tp frame cros_tp version crosid The output of crosid -v, which can be used to understand/debug why a device matched a certain config identity (or, why a device didn't match one). crostini crosvm.log display-debug Logs collected from the ‘display_debug’ crosh tool, such as annotated drm_trace logs and snapshots of the output of ‘modetest’. The drm_trace logs are as described below, but with additional categories enabled. See http://go/cros-displaydebug for more details. dmesg Linux kernel logs from the current run. See console-ramoops for previous boot. drm_gem_objects drm_state drm_trace Logs collected from the kernel's drm module. A subset of drm_debug_category messages are enabled and the tail of their output is collected here. drm_trace_legacy Same as above, but for older kernel versions using a legacy drm_trace implementation. ec_info edid-decode eventlog folder_size_dump The folder_size_dump helper dumps the actual disk usage (in bytes) of various system folders by calling du --human-readable --total --summarize --one-file-system. The list of folders and filtering can be found in folder_size_dump.cc. Each entry calls du individually with a sorted list of subfolders. The output of the df command is available separately for comparison. 0 sized entries are filtered out to reduce the size of the report, this does not provide a complete folder contents listing. font_info framebuffer fwupd_state hammerd hardware_class hardware_verification_report hostname hypervisor.log The kernel log from the ManaTEE hypervisor. i915_error_state i915_gem_gtt i915_gem_objects ifconfig input_devices interrupts Per-CPU interrupt statistics. See the /proc/interrupts section of the proc(5) man page for an explanation of each field. iw_list kbmcu_info RGB KBMCU info. Current FW version on kbmcu. kernel-crashes logcat lpstat Information about connected printer and scanner devices produced by lpstat -l -r -v -a -p -o. Produces ~22 lines of output for each device. lsblk lsmod lspci lsusb lvs Information about LVM logical volumes. mali_memory memd clips memd.parameters meminfo Various memory usage statistics. See the /proc/meminfo section of the proc(5) man page for an explanation of each field. memory_spd_info mm-esim-status mm-status modetest mount-encrypted mountinfo File system mount information from the init process's mount namespace. See https://www.kernel.org/doc/html/latest/filesystems/sharedsubtree.html for what it means. netlog netstat network-devices network-services nvmap_iovmm oemdata pagetypeinfo pchg_info platform_identity_customization_id platform_identity_model platform_identity_name platform_identity_sku platform_identity_whitelabel_tag power_supply_info power_supply_sysfs powerd.LATEST powerd.PREVIOUS powerd.out powerwash_count ps pvs Information about LVM physical volumes. qcom_fw_info sensor_info slabinfo Kernel memory allocator/cache statistics. See the slabinfo(5) man page for an explanation of each field. stateful_trim_data stateful_trim_state storage_info swap_info syslog system_log_stats threads tlsdate top memory top thread touch_fw_version tpm-firmware-updater tpm_version typec_connector_class Information about the state of USB Type-C ports, partners and cables from the USB Type-C connector class. typecd ui_log uname Short summary of the current system information from the uname(1) command. It will include the Linux kernel version (including the git commit), when the kernel was compiled, and some details for the system's CPU. update_engine.log upstart uptime The current system uptime(1) in seconds, including time spent in suspend. In other words, how long since the system was booted. usb4 devices user_folder_size_dump Dumps the size of all folders inside the primary user's folder and the size of all daemon stores for all mounted users. verified boot vmlog.1.LATEST vmlog.1.PREVIOUS vmlog.LATEST vmlog.PREVIOUS vmstat Various virtual memory statistics. See the /proc/vmstat section of the proc(5) man page for an explanation of each field. vpd_2.0 wakeup_sources Wakeup sources are devices capable of waking the system from a suspend. Contains various stats about each wakeup source. See struct wakeup_source in include/linux/pm_wakeup.h in the kernel for a description of fields in this file. Useful for debugging suspend issues. wifi_status_no_anonymize zram block device stat names zram block device stat values block I/O statistics for zram, space-delimited, documented at https://www.kernel.org/doc/html/latest/block/stat.html Useful to know how many I/O happened and how much time was spent using zram swap. zram new stats names zram new stats values Memory management related statistics for zram from /sys/block/zram0/, Documented at https://www.kernel.org/doc/html/latest/admin-guide/blockdev/zram.html#stats Useful to know how much memory is being stored compressed in zram.