mbox series

[for-linus,0/3] tracing: More fixes for 6.3

Message ID 20230405135813.735507007@goodmis.org
Headers
Series tracing: More fixes for 6.3 |

Message

Steven Rostedt April 5, 2023, 1:58 p.m. UTC 
  - 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(-)