On Fri, Nov 10, 2023 at 02:23:53PM -0800, Jianan Wang wrote: > Hi Darrick, > > Thanks for your response. I will open a case to Ubuntu on this issue. However, can you give me a hint on what could be wrong? Failed to kmalloc seems to be a pretty severe issue, and is that related to any kind of kernel memory corruption by certain kernel modules or so? The P taint suggest you have a proprietary module loaded. Nothing is even remotely supportable for that case.