JFYI: all those patches already exist in vz9 kernel. -- Best regards,
Konstantin Khorenko, Virtuozzo Linux Kernel Team On 15.06.2022 17:54, Pavel Tikhomirov wrote:
Forth patch is needed as kernel can reparent process to a dead thread which is wrong. Third patch is needed as kernel could reparent process from father from one pidns to process from different pidns, which creates configurations not supported by CRIU. Found it when reproducing problem from CRIU mainstream issue in VZ7 ct. https://github.com/checkpoint-restore/criu/issues/1914 First and Second are just to make it apply cleaner. Oleg Nesterov (4): exit: reparent: fix the cross-namespace PR_SET_CHILD_SUBREAPER reparenting exit: reparent: document the ->has_child_subreaper checks exit: fix the setns() && PR_SET_CHILD_SUBREAPER interaction exit: reparent: fix the dead-parent PR_SET_CHILD_SUBREAPER reparenting kernel/exit.c | 23 +++++++++++++---------- 1 file changed, 13 insertions(+), 10 deletions(-)
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