Bug#968335: kernel crash: WARNING: CPU: 0 PID: 0 at lib/percpu-refcount.c:155 percpu_ref_switch_to_atomic_rcu+0xf8/0x120

From	tobias <tobias@appelo.org>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#968335: kernel crash: WARNING: CPU: 0 PID: 0 at lib/percpu-refcount.c:155 percpu_ref_switch_to_atomic_rcu+0xf8/0x120
Date	2020-08-13 17:20 +0200
Message-ID	<ADnbk-6Kn-11@gated-at.bofh.it> (permalink)
References	<ADnbk-6Kn-13@gated-at.bofh.it> <ADgCR-2LM-1@gated-at.bofh.it> <ADnbk-6Kn-15@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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Hello,

wanted to add that the issue gets triggered when running the following
script:

#!/bin/sh
if [ -x /usr/bin/certbot ]; then
   certbot -q    --authenticator standalone \
                 --installer none renew  \
                 --pre-hook "service apache2 stop" \
                 --post-hook "service apache2 start"
   sleep 60
   /bin/systemctl restart apache2
fi

if i run this script using previous kernel ( linux-image-4.19.0-9-amd64
) no kernel crash is happening.

tobias.

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Bug#968335: kernel crash: WARNING: CPU: 0 PID: 0 at lib/percpu-refcount.c:155 percpu_ref_switch_to_atomic_rcu+0xf8/0x120 tobias <tobias@appelo.org> - 2020-08-13 17:20 +0200

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