Re: madvise(MADV_REMOVE) deadlocks on shmem THP

2021-01-13 Thread Sergey Senozhatsky
On (21/01/13 20:31), Hugh Dickins wrote: > > We are running into lockups during the memory pressure tests on our > > boards, which essentially NMI panic them. In short the test case is > > > > - THP shmem > > echo advise > /sys/kernel/mm/transparent_hugepage/shmem_enabled > > > > - And a user

Re: madvise(MADV_REMOVE) deadlocks on shmem THP

2021-01-13 Thread Hugh Dickins
On Thu, 14 Jan 2021, Sergey Senozhatsky wrote: > Hi, > > We are running into lockups during the memory pressure tests on our > boards, which essentially NMI panic them. In short the test case is > > - THP shmem > echo advise > /sys/kernel/mm/transparent_hugepage/shmem_enabled > > - And a us