Previously, I wrote: > A few days after upgrading to Stretch and its 4.9 kernel we got an RCU > stall in the middle of the night:
A series of very-similar-looking RCU stalls happened again a week later. The machine is under moderate load most of the time. I switched to running Jessie's kernel, and the machine has now been completely reliable for over a month. # uname -a Linux lander 3.16.0-4-amd64 #1 SMP Debian 3.16.43-2+deb8u2 (2017-06-26) x86_64 GNU/Linux # cat /proc/cmdline BOOT_IMAGE=/vmlinuz-3.16.0-4-amd64 root=/dev/mapper/lander1-root ro nointremap Mike.
