On 2022-05-12 11:55:49 [+0800], Yimin Deng wrote: > Hi Sebastian, Hi Yimin, > Thanks a lot for your quick reply! > > CONFIG_HAVE_PREEMPT_LAZY=y > CONFIG_PREEMPT_NONE=y > # CONFIG_PREEMPT_VOLUNTARY is not set > # CONFIG_PREEMPT__LL is not set > # CONFIG_PREEMPT_RTB is not set > # CONFIG_PREEMPT_RT_FULL is not set > > CONFIG_SLAB=y > # CONFIG_SLUB is not set > # CONFIG_SLOB is not set > > CONFIG_PREEMPT_RT_FULL is not enabled, neither CONFIG_SLUB. I think > it's not related to the issue fixed in f1aca90802af9 ("Revert "slub: > delay ctor until the object is requested""). We share the kernel > source code but using different configuration on different products. > The applications on this product are non-RT applications. If you are not using PREEMPT_RT at all then just remove the PREEMPT_RT patch. Then you will know if this error comes from the patch or not. It might be something that effects !RT configurations. > B.R. > Yimin Sebastian