Hi Sebastian, On 19.12.18 12:36, Sebastian Andrzej Siewior wrote: > On 2018-12-19 07:50:17 [+0000], Schrempf Frieder wrote: >> + linux-rt-users >> >> On 17.12.18 11:42, Frieder Schrempf wrote: >>> Hi, >>> >>> I have tried to boot a 4.14-Kernel with the RT-patches and >>> PREEMPT_RT_FULL on an i.MX6UL board. Unfortunately the boot stalls at >>> some point and never finishes. >>> >>> I did some bisecting and found out, that reverting this change: [1], >>> makes the board boot correctly. >>> >>> Can anyone help to come up with a proper fix for this? > > can you check if the hashtable is initialized twice? I'm not sure how to check, but I guess you are on the right track. I can leave the init loop for dentry_hashtable in place and remove the one for in_lookup_hashtable in vfs_caches_init_early() and this also makes the board boot. Could it be, that the initializing for dentry_hashtable and in_lookup_hashtable somehow interfere? Thanks for your help, Frieder > >>> Thanks, >>> Frieder >>> >>> [1]: >>> https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git/commit/?h=v4.14-rt&id=56684d21f7f8341f7a5ed1433714112f49294590 > > Sebastian >