RCU lockup issues when CONFIG_SOFTLOCKUP_DETECTOR=n - any one else seeing this?
From: davem@davemloft.net (David Miller)
Date: 2017-07-28 18:42:34
Also in:
linuxppc-dev, sparclinux
From: Boqun Feng <redacted> Date: Fri, 28 Jul 2017 20:54:16 +0800
Hi Jonathan, FWIW, there is wakeup-missing issue in swake_up() and swake_up_all(): https://marc.info/?l=linux-kernel&m=149750022019663 and RCU begins to use swait/wake last year, so I thought this could be relevant. Could you try the following patch and see if it works? Thanks.
Just FYI I'm testing this patch now on sparc64...