From: Steven Rostedt <rostedt@goodmis.org>
To: Donggeun Yoo <donggeunyoo.kernel@gmail.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Tom Zanussi <zanussi@kernel.org>,
linux-trace-kernel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] tracing: Fix NULL dereference when copying keys for a field variable
Date: Sun, 13 Sep 2026 13:32:10 -0400 [thread overview]
Message-ID: <20260913133210.5561852b@robin> (raw)
In-Reply-To: <20260913122523.30f487d9@robin>
On Sun, 13 Sep 2026 12:25:23 -0400
Steven Rostedt <rostedt@goodmis.org> wrote:
> Oh, and there's another bug here. With your example, where you used
> "prio" for sched_switch (which isn't a field), there's an error message
> created, but the command still errors out.
I meant the command still succeeds, it doesn't error out.
-- Steve
>
> [ 415.300003] hist:sched:sched_switch: error: Couldn't parse field variable
> Command: hist:keys=stacktrace:wakeup_lat=common_timestamp.usecs-$ts0:onmatch(sched.sched_waking).my_synth($wakeup_lat,prio)
prev parent reply other threads:[~2026-09-13 17:32 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-12 9:47 Donggeun Yoo
2026-09-13 16:25 ` Steven Rostedt
2026-09-13 17:32 ` Steven Rostedt [this message]
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