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# This lists all the available crash annotations.
#
# Mandatory fields for each entry are:
# - description: A string describing the annotation
# - type: the annotation type, currently `string`, `boolean`, `u32`, `u64` or
# `usize`. Note that `boolean` values are stringified to `1` for
# true and `0` for false.
#
# Additionally a field can have the following optional fields:
# - altname: A string that will be used when writing out the annotation to the
# .extra file instead of the annotation name
# - ping: A boolean that indicates whether the annotation is allowed for
# inclusion in the crash ping, if not specified this defaults to false
# - skip_if: A string that will cause the annotation not to be included in the
# crash report if the contents match it.
AbortMessage:
description: >
Message passed to NS_DebugBreak().
type: string
Accessibility:
description: >
Set to "Active" by the accessibility service when it is active.
type: string
AccessibilityClient:
description: >
Accessibility client ID.
type: string
AccessibilityInProcClient:
description: >
Hexadecimal mask of in-process accessibility consumers, see
accessible/windows/msaa/Compatibility.h for the mappings.
type: string
AdapterDeviceID:
description: >
Graphics adapter name.
type: string
AdapterDriverVendor:
description: >
Graphics adapter driver vendor.
type: string
AdapterDriverVersion:
description: >
Graphics adapter driver version.
type: string
AdapterSubsysID:
description: >
Graphics adapter subsystem ID.
type: string
AdapterVendorID:
description: >
Graphics adapter vendor name.
type: string
additional_minidumps:
description: >
Comma separated list of additional minidumps for this crash, each element
in the list represent the suffix used in the dump filename. E.g. the
"browser" entry for crash fa909194-737b-4b93-b8da-da110ac785e0 implies the
existence of the fa909194-737b-4b93-b8da-da110ac785e0-browser.dmp file.
type: string
Addons:
description: >
List of currently enabled add-ons.
type: string
altname: Add-ons
Android_Board:
description: >
The name of the underlying board used by the Android device. e.g. "k68v1_64"
type: string
Android_Brand:
description: >
The consumer-visible brand associated with this Android device. e.g. "vivo"
type: string
Android_CPU_ABI:
description: >
The Android primary CPU ABI being used. e.g. "arm64-v8a"
type: string
Android_CPU_ABI2:
description: >
The Android secondary CPU ABI being used. e.g. "armeabi-v7a"
type: string
Android_Device:
description: >
Android device name. e.g. "1907"
type: string
Android_Display:
description: >
End-user visible display name of the build id for the Android build.
e.g. "SP1A.210812.003 release-keys"
type: string
Android_Fingerprint:
description: >
A string that uniquely identifies the Android build. e.g.
"vivo/1907/1907:12/SP1A.210812.003/compiler03091510:user/release-keys"
type: string
Android_Hardware:
description: >
The name of the Android hardware from "/proc". e.g. "mt6768"
type: string
Android_Manufacturer:
description: >
Android device manufacturer. e.g. "vivo"
type: string
Android_Model:
description: >
End-user visible Android device model name. e.g. "vivo 1907"
type: string
Android_PackageName:
description: >
The package name of an Android application that uniquely identifies the
application on the device, Google Play Store, and third-party Android
stores. e.g. "com.example.referencebrowser"
type: string
Android_Version:
description: >
The developer preview revision of a prerelease SDK plus The current
development codename, or the string "REL" if this is a release build.
e.g. "31 (REL)"
type: string
AppInitDLLs:
description: >
List of DLLs loaded when launching any application on Windows, this
reflects the contents of the AppInit_DLLs registry key.
type: string
ApplicationBuildID:
description: >
Product application's build ID.
type: string
AsyncShutdownTimeout:
description: >
This annotation is present if a shutdown blocker was not released in time
and the browser was crashed instead of waiting for shutdown to finish. The
condition that caused the hang is contained in the annotation.
type: string
ping: true
AvailablePageFile:
description: >
Available commit-space in bytes.
- Under Windows, computed from the PERFORMANCE_INFORMATION structure by substracting
the CommitTotal field from the CommitLimit field.
- Under Linux, computed from /proc/meminfo's CommitLimit - Committed_AS. Note that
the kernel is not guaranteed to enforce that CommittedLimit >= Committed_AS. If
Committed_AS > CommittedLimit, this value is set to 0.
- Not available on other platforms.
type: usize
ping: true
AvailablePhysicalMemory:
description: >
Amount of free physical memory in bytes.
- Under Windows, populated with the contents of the MEMORYSTATUSEX's structure
ullAvailPhys field.
- Under macOS, populated with vm_statistics64_data_t::free_count.
- Under Linux, populated with /proc/meminfo's MemFree.
- Not available on other platforms.
type: usize
ping: true
AvailableSwapMemory:
description: >
Amount of free swap space in bytes.
- Under macOS, populated with the contents of
sysctl "vm.swapusage" :: xsu_avail.
- Under Linux, populated with /proc/meminfo's SwapFree.
- Not available on other platforms.
type: usize
ping: true
AvailableVirtualMemory:
description: >
Amount of free virtual memory in bytes
- Under Windows, populated with the contents of the MEMORYSTATUSEX's structure ullAvailVirtual field.
- Under Linux, populated with /proc/meminfo's MemAvailable.
- Not available on other platforms.
- For macOS, see AvailableSwapMemory, AvailablePhysicalMemory and PurgeablePhysicalMemory.
type: usize
ping: true
BackgroundTaskMode:
description: >
True if the app was invoked in background task mode via `--backgroundtask ...`, false otherwise.
type: boolean
BackgroundTaskName:
description: >
If the app was invoked in background task mode via `--backgroundtask <task name>`, the string "task name".
type: string
ping: true
BlockedDllList:
description: >
Comma-separated list of blocked DLLS, Windows-only
type: string
ping: true
BlocklistInitFailed:
description: >
Set to 1 if the DLL blocklist could not be initialized.
type: boolean
ping: true
skip_if: "0"
Breadcrumbs:
description: >
Trail of events that occurred before a report. this will consist of multiple breadcrumbs with
timestamp, message, category, level, type and data in JSON format.
type: string
BuildID:
description: >
Application build ID, the format is YYYYMMDDHHMMSS.
type: string
ping: true
ContentSandboxCapabilities:
description: >
List of capabilities of the content process sandbox.
type: u32
ContentSandboxEnabled:
description: >
Set to 1 when content process sandboxing is enabled.
type: boolean
ContentSandboxCapable:
description: >
Set to 1 if the client is capable of content sandboxing.
type: boolean
ContentSandboxLevel:
description: >
Content sandbox level.
type: u32
ContentSandboxWin32kState:
description: >
Content sandbox Win32k state
type: string
GpuSandboxLevel:
description: >
GPU sandbox level.
type: u32
CPUMicrocodeVersion:
description: >
Version of the CPU microcode.
type: string
CrashTime:
description: >
Crash time in seconds since the Epoch.
type: string
ping: true
CycleCollector:
description: >
Reason why the cycle collector crashed.
type: string
DesktopEnvironment:
description: >
Desktop environment used on Linux, e.g. GNOME, KDE, XFCE, etc.
type: string
DeviceResetReason:
description: >
Reason why a DirectX device has been reset, Windows only.
type: u32
DOMFissionEnabled:
description: >
Set to 1 when DOM fission is enabled, and subframes are potentially loaded
in a separate process.
type: boolean
ping: true
DOMIPCEnabled:
description: >
Set to 1 when a tab is running in a content process
type: boolean
DumperError:
description: >
Error message of the minidump writer, in case there was an error during dumping.
type: string
EMCheckCompatibility:
description: >
Set to true if add-on compatibility checking is enabled. Technically this
annotation should be a boolean, but historically it's been set by JavaScript
code as a string, so keep it as such for the time being.
type: string
EventLoopNestingLevel:
description: >
Present only if higher than 0, indicates that we're running in a nested
event loop and indicates the nesting level.
type: u32
ping: true
skip_if: "0"
ExperimentalFeatures:
description: >
Comma-separated list of enabled experimental features from about:preferences#experimental.
type: string
ping: true
FontName:
description: >
Set before attempting to load a font to help diagnose crashes during loading.
type: string
ping: true
GMPLibraryPath:
description: >
Holds the path to the GMP plugin library.
type: string
GMPPlugin:
description: >
Set to 1 if the GMP plugin is enabled.
type: boolean
GPUProcessLaunchCount:
description: >
Number of times the GPU process was launched.
type: u32
ping: true
GPUProcessStatus:
description: >
Status of the GPU process, can be set to "Running" or "Destroyed"
type: string
GraphicsCompileShader:
description: >
Name of the shader we are in the process of compiling, if applicable. See
file names in gfx/wr/webrender/res/* for the possible values.
type: string
GraphicsCriticalError:
description: >
Information of a critical error that occurred within the graphics code.
type: string
GraphicsDrawShader:
description: >
Name of the shader that is currently bound for a draw call, if applicable.
See file names in gfx/wr/webrender/res/* for the possible values.
type: string
GraphicsNumActiveRenderers:
description: >
Number of webrender renderer instances that are not in a paused state.
type: usize
GraphicsNumRenderers:
description: >
Total number of webrender renderer instances.
type: usize
GraphicsStartupTest:
description: >
Set to 1 by the graphics driver crash guard when it's activated.
type: boolean
HeadlessMode:
description: >
True if the app was invoked in headless mode via `--headless ...` or `--backgroundtask ...`, false otherwise.
type: boolean
ping: true
PHCKind:
description: >
The allocation kind, if the crash involved a bad access of a special PHC
allocation.
type: string
PHCBaseAddress:
description: >
The allocation's base address, if the crash involved a bad access of a
special PHC allocation. Encoded as a decimal address.
type: string
PHCUsableSize:
description: >
The allocation's usable size, if the crash involved a bad access of a
special PHC allocation.
# A 32-bit integer is enough because the maximum usable size of a special PHC
# allocation is far less than 2 GiB.
type: u32
PHCAllocStack:
description: >
The allocation's allocation stack trace, if the crash involved a bad access
of a special PHC allocation. Encoded as a comma-separated list of decimal
addresses.
type: string
PHCFreeStack:
description: >
The allocation's free stack trace, if the crash involved a bad access
of a special PHC allocation. Encoded as a comma-separated list of decimal
addresses.
type: string
HasDeviceTouchScreen:
description: >
Set to 1 if the device had a touch-screen, this only applies to Firefox
desktop as on mobile devices we assume a touch-screen is always present.
type: boolean
InstallTime:
description: >
The time when Firefox was installed expressed as seconds since the Epoch
type: string # This should be u64 but we currently handle it as a string
ipc_channel_error:
description: >
Set before a content process crashes because of an IPC channel error, holds
a description of the error.
type: string
ping: true
IpcCreatePipeCloExecErrno:
description: >
errno value retrieved after failing to set the O_CLOEXEC flag on a pipe
used for IPC.
type: u32
IpcCreatePipeFcntlErrno:
description: >
errno value retrieved after a call to fcntl() on a pipe used for IPC failed.
type: u32
IpcCreatePipeSocketPairErrno:
description: >
errno value retrieved after a socketpair() call failed while creating an IPC
transport object.
type: u32
IPCFatalErrorMsg:
description: >
Describes a fatal error that occurred during IPC operation.
type: string
IPCFatalErrorProtocol:
description: >
Name of the protocol used by IPC when a fatal error occurred.
type: string
IPCMessageName:
description: >
Name of the IPC message that caused a crash because it was too large.
type: string
IPCMessageSize:
description: >
Size of the IPC message that caused a crash because it was too large.
type: u32
IPCReadErrorReason:
description: >
Reason why reading an object via IPC failed.
type: string
IPCShutdownState:
description: >
IPC shutdown state, can be set to either "RecvShutdown" or
"SendFinishShutdown" by a content process while it's shutting down.
type: string
IPCSystemError:
description: >
Description of the last system error that occurred during IPC operation.
type: u32
Hang:
description: >
Set if the crash was the result of a hang, with a value which describes the
type of hang (e.g. "ui" or "shutdown").
type: string
ping: true
IsGarbageCollecting:
description: >
If true then the JavaScript garbage collector was running when the crash
occurred.
type: boolean
ping: true
skip_if: "0"
IsWayland:
description: >
If true then the Wayland windowing system was in use.
type: boolean
IsWebRenderResourcePathOverridden:
description: >
If true then the WebRender resources (i.e. shaders) are loaded from a user specified path.
type: boolean
JavaException:
description: >
JSON structured Java stack trace, only present on Firefox for Android if we encounter an
uncaught Java exception.
type: string
JavaStackTrace:
description: >
Java stack trace, only present on Firefox for Android if we encounter an
uncaught Java exception.
type: string
JSActorMessage:
description: >
If an actor is currently treating a message, this is the name of the message.
Otherwise, empty.
type: string
JSActorName:
description: >
If an actor is currently treating a message, this is the name of the actor.
Otherwise, empty.
type: string
JSLargeAllocationFailure:
description: >
A large allocation couldn't be satisfied, check the JSOutOfMemory
description for the possible values of this annotation.
type: string
JSModuleLoadError:
description: >
The error raised when attempting to import a critical JS module from C++
type: string
JSOutOfMemory:
description: >
A small allocation couldn't be satisfied, the annotation may contain the
"Reporting", "Reported" or "Recovered" value. The first one means that
we crashed while responding to the OOM condition (possibly while running a
memory-pressure observers), the second that we crashed after having tried to
free some memory, and the last that the GC had managed to free enough memory
to satisfy the allocation.
type: string
LastInteractionDuration:
description: >
How long the user had been inactive in seconds if the user was inactive
at crash. The value is not set if the user state was active.
type: u64
ping: true
LastStartupWasCrash:
description: >
True if the last startup was detected to have been a crash.
type: boolean
MacMemoryPressure:
description: >
The current memory pressure state as provided by the macOS memory pressure
dispatch source. The annotation value is one of "Normal" for no memory
pressure, "Unset" indicating a memory pressure event has not been received,
"Warning" or "Critical" mapping to the system memory pressure levels,
or "Unexpected" for an unexpected level. This is a Mac-specific annotation.
type: string
MacMemoryPressureNormalTime:
description: >
The time when the memory pressure state last transitioned to 'Normal'
expressed as seconds since the Epoch.
type: string
MacMemoryPressureWarningTime:
description: >
The time when the memory pressure state last transitioned to 'Warning'
expressed as seconds since the Epoch.
type: string
MacMemoryPressureCriticalTime:
description: >
The time when the memory pressure state last transitioned to 'Critical'
expressed as seconds since the Epoch.
type: string
MacMemoryPressureSysctl:
description: >
The value of the memory pressure sysctl
'kern.memorystatus_vm_pressure_level'. Indicates which memory
pressure level the system is in at the time of the crash. The expected
values are one of 4 (Critical), 2 (Warning), or 1 (Normal).
type: u32
MacAvailableMemorySysctl:
description: >
The value of the available memory sysctl 'kern.memorystatus_level'.
Expected to be a percentage integer value.
type: u32
LinuxUnderMemoryPressure:
description: >
Set to true if the memory pressure watcher was under memory pressure when
the crash occurred.
type: boolean
LauncherProcessState:
description: >
Launcher process enabled state. The integer value of this annotation must
match with one of the values in the
mozilla::LauncherRegistryInfo::EnableState enum
type: u32
LowPhysicalMemoryEvents:
description: >
Number of times the available memory tracker has detected that free
physical memory is running low. This is a Windows-specific annotation.
type: u32
ping: true
skip_if: "0"
MainThreadRunnableName:
description: >
Name of the currently executing nsIRunnable on the main thread.
type: string
ping: true
MozCrashReason:
description: >
Plaintext description of why Firefox crashed, this is usually set by
assertions and the like.
type: string
ping: true
Notes:
description: >
Miscellaneous notes that can be appended to a crash.
type: string
OOMAllocationSize:
description: >
Size of the allocation that caused an out-of-memory condition.
type: usize
ping: true
skip_if: "0"
PluginFilename:
description: >
Plugin filename, only the process holding the plugin has this annotation.
type: string
PluginName:
description: >
Display name of a plugin, only the process holding the plugin has this
annotation.
type: string
PluginVersion:
description: >
Version of a plugin, only the process holding the plugin has this
annotation.
type: string
ProcessType:
description: >
Type of the process that crashed, the possible values are defined in
GeckoProcessTypes.h.
type: string
ProductName:
description: >
Application name (e.g. Firefox).
type: string
ping: true
ProductID:
description: >
Application UUID (e.g. ec8030f7-c20a-464f-9b0e-13a3a9e97384).
type: string
ping: true
ProfilerChildShutdownPhase:
description: >
When a child process shuts down, this describes if the profiler is running,
and the point the profiler shutdown sequence has reached.
type: string
ping: true
PurgeablePhysicalMemory:
description: >
macOS only. Amount of physical memory currently allocated but which may
be deallocated by the system in case of memory pressure. Populated from
vm_statistics64_data_t::purgeable_count * vm_page_size.
type: usize
ping: true
QuotaManagerShutdownTimeout:
description: >
This annotation is present if the quota manager shutdown (resp. the shutdown
of the quota manager clients) was not finished in time and the browser was
crashed instead of waiting for the shutdown to finish. The status of objects
which were blocking completion of the shutdown when reaching the timeout
is contained in the annotation.
In the case of IndexedDB, objects are divided into three groups:
FactoryOperations, LiveDatabases and DatabaseMaintenances.
In the case of LocalStorage, objects are divided into three groups:
PrepareDatastoreOperations, Datastores and LiveDatabases.
In the case of Cache API, objects are in one group only:
Managers.
Each group is reported separately and contains the number of objects in the
group and the status of individual objects in the group (duplicate entries
are removed):
"GroupName: N (objectStatus1, objectStatus2, ...)" where N is the number of
objects in the group.
The status of individual objects is constructed by taking selected object
properties. Properties which contain origin strings are anonymized.
In addition, intermediate steps are recorded for change events after shutdown
started. These include the time difference and the type of object.
type: string
ping: true
RDDProcessStatus:
description: >
Status of the RDD process, can be set to "Running" or "Destroyed"
type: string
ReleaseChannel:
description: >
Application release channel (e.g. default, beta, ...)
type: string
ping: true
RemoteType:
description: >
Type of the content process, can be set to "web", "file" or "extension".
type: string
ping: true
SafeMode:
description: >
Set to 1 if the browser was started in safe mode.
type: boolean
SecondsSinceLastCrash:
description: >
Time in seconds since the last crash occurred.
type: u64
ping: true
ServerURL:
description: >
URL used to post the crash report.
type: string
ShutdownProgress:
description: >
Shutdown step at which the browser crashed, can be set to "quit-application",
"profile-change-teardown", "profile-before-change", "xpcom-will-shutdown" or
"xpcom-shutdown".
type: string
ping: true
ShutdownReason:
description: >
One out of "Unknown", "AppClose", "AppRestart", "OSForceClose",
"OSSessionEnd", "OSShutdown" or "WinUnexpectedMozQuit".
type: string
ping: true
StartupCacheValid:
description: >
True if the startup cache was deemed valid and usable. Will be false if the
last session used a different browser version or had a startup cache.
type: boolean
StartupCrash:
description: >
If set to 1 then this crash occurred during startup.
type: boolean
ping: true
StartupTime:
description: >
The time when Firefox was launched expressed in seconds since the Epoch.
type: u64
StorageConnectionNotClosed:
description: >
This annotation is added when a mozStorage connection has not been properly
closed during shutdown. The annotation holds the filename of the database
associated with the connection.
type: string
SubmittedFrom:
description: >
This annotation can hold one of the following five values depending on how
this crash was submitted by the user:
* Auto: the user had opted-in to auto-submission
* Infobar: the user clicked on the infobar to submit the crash
* AboutCrashes: the user sent the crash from the about:crashes page
* CrashedTab: the user sent the crash from a crashed tab page
* Client: the user sent the crash using the crash reporter client
type: string
SystemMemoryUsePercentage:
description: >
Windows-only, percentage of physical memory in use. This annotation is
populated with the contents of the MEMORYSTATUSEX's structure dwMemoryLoad
field.
type: u32
ping: true
TelemetryClientId:
description: >
Telemetry client ID.
type: string
TelemetryEnvironment:
description: >
The telemetry environment in JSON format.
type: string
TelemetryServerURL:
description: >
Telemetry server URL. Used to send main process crash pings directly from
the crashreporter client.
type: string
TelemetrySessionId:
description: >
Telemetry session ID.
type: string
TestKey:
description: >
Annotation used in tests.
type: string
TestUnicode:
description: >
Annotation used in tests.
type: string
TextureUsage:
description: >
Amount of memory in bytes consumed by textures.
type: usize
ping: true
skip_if: "0"
Throttleable:
description: >
Whether Socorro can selectively discard this crash report or not. If set
to "0" the crash report will always be processed by Socorro. Do not set
this annotation within Gecko code, it's only supposed to be used by the
crash reporting machinery.
type: boolean
TotalPageFile:
description: >
Maximum amount of memory that can be committed without extending the swap/page file.
- Under Windows, populated with the contents of the PERFORMANCE_INFORMATION's
structure CommitLimit field.
- Under Linux, populated with /proc/meminfo MemTotal + SwapTotal. The swap file
typically cannot be extended, so that's a hard limit.
- Not available on other systems.
type: usize
ping: true
TotalPhysicalMemory:
description: >
Amount of physical memory in bytes.
- Under Windows, populated with the contents of the MEMORYSTATUSEX's structure
ullTotalPhys field.
- Under macOS, populated with sysctl "hw.memsize".
- Under Linux, populated with /proc/meminfo's "MemTotal".
- Not available on other systems.
type: usize
ping: true
TotalVirtualMemory:
description: >
Size of the virtual address space.
- Under Windows, populated with the contents of the MEMORYSTATUSEX's structure
ullTotalVirtual field.
- Not available on other platforms.
type: usize
ping: true
UnknownNetAddrSocketFamily:
description: >
An unknown network address family was requested to Necko. The value is the
requested family number.
type: u32
UptimeTS:
description: >
Uptime in seconds. This annotation uses a string instead of an integer
because it has a fractional component.
type: string # This is a floating-point number but we treat it as a string
ping: true
URL:
description: >
URL being loaded.
type: string
URLSegments:
description: >
The offsets of the nsStandardURL segments that fail a sanity check
type: string
User32BeforeBlocklist:
description: >
Set to 1 if user32.dll was loaded before we could install the DLL blocklist.
type: boolean
ping: true
skip_if: "0"
useragent_locale:
description: >
User-agent locale.
type: string
UtilityProcessStatus:
description: >
Status of the Utility process, can be set to "Running" or "Destroyed"
type: string
UtilityActorsName:
description: >
Comma-separated list of IPC actors name running on this Utility process instance
type: string
ping: true
Vendor:
description: >
Application vendor (e.g. Mozilla).
type: string
Version:
description: >
Product version.
type: string
VRProcessStatus:
description: >
Status of the VR process, can be set to "Running" or "Destroyed"
type: string
WasmLibrarySandboxMallocFailed:
description: >
Set to 1 if a rlbox wasm library sandbox ran out of memory, causing a
malloc inside the sandbox to fail.
type: boolean
WindowsFileDialogErrorCode:
description: >
The HRESULT returned from a Win32 system call leading to termination of the
file-dialog utility process. MozCrashReason is expected to provide context
for the value.
type: u32 # This is an HRESULT which is defined as signed, but we don't want to print it as a signed integer
ping: true
WindowsPackageFamilyName:
description: >
If running in a Windows package context, the package family name, per
The package family name is only included when it is likely to have been produced by Mozilla: it
starts "Mozilla." or "MozillaCorporation.".
type: string
ping: true
WindowsErrorReporting:
description: >
Set to 1 if this crash was intercepted via the Windows Error Reporting
runtime exception module.
type: boolean
ping: true
Winsock_LSP:
description: >
Information on winsock LSPs injected in our networking stack.
type: string
XPCOMSpinEventLoopStack:
description: >
If we crash while some code is spinning manually the event loop on the
main thread, we will see the stack of nested annotations here.
If the crashing process was killed (e.g. due to an IPC error), this
annotation may refer to the parent process that killed it, look out for
the prefix ("default" means parent) and see bug 1741131 for details.
type: string