On Sat, Nov 05, 2022 at 02:00:24AM -0400, Steven Rostedt wrote:

Back in April, I posted an RFC patch set to help mitigate a common issue
where a timer gets armed just before it is freed, and when the timer
goes off, it crashes in the timer code without any evidence of who the
culprit was. I got side tracked and never finished up on that patch set.
Since this type of crash is still our #1 crash we are seeing in the field,
it has become a priority again to finish it.

The last version of that patch set is here:

  https://lore.kernel.org/all/20221104054053.431922658@goodmis.org/ (local)

I'm calling this version 4a as it only has obvious changes were the timer that
is being shutdown is in the same function where it will be freed or released,
as this series should be "safe" for adding. I'll be calling the other patches
4b for the next merge window.

For the series, as far as my testbed goes:

Build results:
	total: 152 pass: 152 fail: 0
Qemu test results:
	total: 500 pass: 500 fail: 0

No runtime crashes or warnings observed.

Tested-by: Guenter Roeck <linux@roeck-us.net>

Guenter