> On Apr 26, 2020, at 10:41 AM, Mike Rapoport <rppt@xxxxxxxxxxxxx> wrote: > > Hi, > > On Thu, Apr 23, 2020 at 05:25:56PM -0400, Qian Cai wrote: >> Compaction starts to crash below on linux-next today. The faulty page belongs to Node 0 DMA32 zone. >> I’ll continue to narrow it down, but just want to give a headup in case someone could beat me to it. >> >> Debug output from free_area_init_core() >> [ 0.000000] KK start page = ffffea0000000040, end page = ffffea0000040000, nid = 0 DMA >> [ 0.000000] KK start page = ffffea0000040000, end page = ffffea0004000000, nid = 0 DMA32 >> [ 0.000000] KK start page = ffffea0004000000, end page = ffffea0012000000, nid = 0 NORMAL >> [ 0.000000] KK start page = ffffea0012000000, end page = ffffea0021fc0000, nid = 4 NORMAL >> >> I don’t understand how it could end up in such a situation. There are several recent patches look >> more related than some others. > > Can you please add "mminit_loglevel=4 memblock=debug" to the kernel > command line? https://cailca.github.io/files/dmesg.txt
