Struct StallDiagnostic 

pub struct StallDiagnostic {
    pub wchan: String,
    pub syscall: String,
    pub state: String,
    pub stack: Option<String>,
    pub status_full: String,
    pub cgroup: String,
    pub host_loadavg: String,
}

One-shot diagnostic snapshot captured at stall-trip time.

Each field is the contents of a /proc/<pid>/<field> file (or a stand-in describing why the read failed). Field extraction is best-effort: a missing /proc/<pid>/stack (requires CAP_SYS_ADMIN) does NOT block the diagnostic; every field carries its own "[unreadable: <reason>]" stand-in so an operator triaging the stall can tell apart “kernel didn’t expose it” from “monitor failed to read it”.

Fields

wchan: String

/proc/<pid>/wchan — kernel symbol the task is sleeping in, or 0 when the task is runnable / wchan is unresolvable.

syscall: String

/proc/<pid>/syscall — first field is the syscall number the task is blocked in (or running when on-CPU).

state: String

/proc/<pid>/status task-state line (“State: S (sleeping)”). Parsed down to the single-letter state code; the full status file is preserved in status_full.

stack: Option<String>

/proc/<pid>/stack — kernel-stack trace; commonly unreadable without CAP_SYS_ADMIN. None when absent (versus an unreadable string in the string fields).

status_full: String

/proc/<pid>/status raw — full text for fields beyond State: the operator may want to inspect (Cpus_allowed, Threads, ctxt counts).

cgroup: String

/proc/<pid>/cgroup — v2 path the task belongs to.

host_loadavg: String

Host’s /proc/loadavg at trip time — useful for ruling out “stall” caused by extreme host load rather than scheduler misbehavior.

Trait Implementations

impl Clone for StallDiagnostic

fn clone(&self) -> StallDiagnostic

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for StallDiagnostic

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for StallDiagnostic

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for StallDiagnostic

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.