On Mon, Jul 09, 2018 at 10:10:34AM +0900, Tetsuo Handa wrote: > >From 62ddef96020cb397dcbf4b8574f1859b32f983de Mon Sep 17 00:00:00 2001 > From: Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx> > Date: Mon, 9 Jul 2018 09:54:01 +0900 > Subject: [PATCH] ANDROID: binder: Latelimit binder_debug(). > > syzbot is reporting hung tasks [1] [2]. This might be due to flooding of > printk() messages from binder subsystem, for NMI backtrace says the CPU > was busy doing printk() from binder subsystem. Since the kernel log buffer > is trivially spammed by debug messages, let's latelimit binder_debug(). How is the binder debug messages being turned on? They are not enabled by default, is syzbot enabling them? If so, then I don't know if this needs to be changed, as you want those debug messages if you ask for them, you shouldn't ratelimit them. thanks, greg k-h _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
