On Wed, Dec 08, 2021 at 09:56:50AM +0800, Huacai Chen wrote: > Hi, Thomas, > > On Wed, Dec 8, 2021 at 8:59 AM Thomas Bogendoerfer > <tsbogend@xxxxxxxxxxxxxxxx> wrote: > > > > Hi, > > > > [ 11.647401] CPU 3 Unable to handle kernel paging request at virtual address 0000000558005801, epc == ffffffff80232838, ra == ffffffff802327ac > > [ 11.660049] Oops[#1]: > > [ 11.662303] CPU: 3 PID: 348 Comm: libvirtd Not tainted 5.16.0-rc3+ #140 > > [ 11.668877] Hardware name: Lemote LEMOTE-LS3A4000-7A1000-1w-V0.1-pc/LEMOTE-LS3A4000-7A1000-1w-V01-pc, BIOS Kunlun-A1901-V4.1.4 04/20/2020 > > [ 11.929428] note: libvirtd[348] exited with preempt_count 1 > [..] > > > > is this a known issue ? If I disabled TRANSPARENT_HUGE_PAGE system > > works. > Have you tried some older kernels, such as 5.10/5.15? I have seen that > some MM-related patches be merged in MIPS tree in recent releases, and > maybe this bug is caused by them. not yet, as it has worked, I'm going to bisect it. Thomas. -- Crap can work. Given enough thrust pigs will fly, but it's not necessarily a good idea. [ RFC1925, 2.3 ]