[PATCH 0/2] workqueue: Fix migrate_disable hotplug changes vs kworker affinity

[Valentin Schneider]

Hi folks,

This should fix the issue reported by Qian at [1]. Dietmar mentioned some
other issue with hotplug & deadline tasks, but that's being investigated by
someone else ATM. 


I would like to mention I suspect this bug comes straight from $hell, as
I've never ever had to fight off so many (mostly unrelated) issues while
looking into it. Distro kernel being mangled, git tree corruption, periods of
heisenbugism...

Cheers,
Valentin

[1]: https://lore.kernel.org/r/ff62e3ee994efb3620177bf7b19fab16f4866845.camel@xxxxxxxxxx

Valentin Schneider (2):
  stop_machine: Add caller debug info to queue_stop_cpus_work
  workqueue: Fix affinity of kworkers attached during late hotplug

 kernel/stop_machine.c |  1 +
 kernel/workqueue.c    | 24 +++++++++++++++++-------
 2 files changed, 18 insertions(+), 7 deletions(-)

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2.27.0