From: Steven Rostedt <rostedt@goodmis.org>
To: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
Linux Trace Kernel <linux-trace-kernel@vger.kernel.org>,
Masami Hiramatsu <mhiramat@kernel.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Sachin Sant <sachinp@linux.ibm.com>
Subject: Re: [PATCH] tracing: Remove precision vsnprintf() check from print event
Date: Mon, 4 Mar 2024 18:55:00 -0500 [thread overview]
Message-ID: <20240304185500.3160ec20@gandalf.local.home> (raw)
In-Reply-To: <b3803989-8465-4656-8ca3-678a92f9a140@efficios.com>
On Mon, 4 Mar 2024 18:23:41 -0500
Mathieu Desnoyers <mathieu.desnoyers@efficios.com> wrote:
> It appears to currently be limited by
>
> #define TRACE_SEQ_BUFFER_SIZE (PAGE_SIZE * 2 - \
> (sizeof(struct seq_buf) + sizeof(size_t) + sizeof(int)))
>
> checked within tracing_mark_write().
Yeah, I can hard code this to 8K as it handles output of complete events,
that can dump a lot of data, and then limit the trace_marker writes to be 4K.
-- Steve
next prev parent reply other threads:[~2024-03-04 23:53 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-04 22:43 [PATCH] tracing: Remove precision vsnprintf() check from print event Steven Rostedt
2024-03-04 23:23 ` Mathieu Desnoyers
2024-03-04 23:55 ` Steven Rostedt [this message]
2024-03-05 0:18 ` Steven Rostedt
2024-03-05 5:47 ` Sachin Sant
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