Hello, On Mon, Nov 23, 2015 at 05:40:36PM +0200, Nikolay Borisov wrote: > Hello Tejun, > > On one of my servers I recently hit the following warn: > > 182317.101584] ------------[ cut here ]------------ > [182317.101753] WARNING: CPU: 7 PID: 13192 at fs/fs-writeback.c:2080 __mark_inode_dirty+0x20a/0x350() > [182317.102032] bdi-block not registered > [182317.102192] Kernel panic - not syncing: panic_on_warn set ... > > [182317.102474] CPU: 7 PID: 13192 Comm: mount Not tainted 4.2.5-vanilla1 #1 Is the problem reproducible? If so, can you please see whether the following patch makes any difference? http://lkml.kernel.org/g/1448054554-24138-1-git-send-email-idryomov@xxxxxxxxx Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe cgroups" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html