From: Steven Rostedt <rostedt@goodmis.org>
To: linux-kernel@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Andrew Morton <akpm@linux-foundation.org>
Subject: [for-linus][PATCH 0/3] tracing: More fixes for 6.3
Date: Wed, 05 Apr 2023 09:58:13 -0400 [thread overview]
Message-ID: <20230405135813.735507007@goodmis.org> (raw)
- Fix boot up snapshot code:
Boot snapshots were triggering when not even asked for on the
kernel command line. This was caused by two bugs.
1) It would trigger a snapshot on any instance if one was created
from the kernel command line.
2) The error handling would only affect the top level instance.
So the fact that a snapshot was done on a instance that didn't
allocate a buffer triggered a warning written into the top level
buffer, and worse yet, disabled the top level buffer.
- Fix memory leak that was caused when an error was logged in a
trace buffer instance, and then the buffer instance was removed.
The allocated error log messages still need to be freed.
git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace.git
trace/urgent
Head SHA1: 3357c6e429643231e60447b52ffbb7ac895aca22
Steven Rostedt (Google) (3):
tracing: Have tracing_snapshot_instance_cond() write errors to the appropriate instance
tracing: Fix ftrace_boot_snapshot command line logic
tracing: Free error logs of tracing instances
----
kernel/trace/trace.c | 28 +++++++++++++++-------------
1 file changed, 15 insertions(+), 13 deletions(-)
next reply other threads:[~2023-04-05 14:27 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-05 13:58 Steven Rostedt [this message]
2023-04-05 13:58 ` [for-linus][PATCH 1/3] tracing: Have tracing_snapshot_instance_cond() write errors to the appropriate instance Steven Rostedt
2023-04-05 13:58 ` [for-linus][PATCH 2/3] tracing: Fix ftrace_boot_snapshot command line logic Steven Rostedt
2023-04-05 19:00 ` Steven Rostedt
2023-04-05 13:58 ` [for-linus][PATCH 3/3] tracing: Free error logs of tracing instances Steven Rostedt
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