On Tue, Dec 01 2020 at 14:52, Corentin Labbe wrote: > On Tue, Dec 01, 2020 at 02:28:54PM +0100, Thomas Gleixner wrote: > The patch made the board too busy logging and fail to boot until the test. Stupid me. Of course this wants to be conditional. Thanks, tglx --- diff --git a/mm/highmem.c b/mm/highmem.c index b49364a306b8..178b126ab4f6 100644 --- a/mm/highmem.c +++ b/mm/highmem.c @@ -571,8 +571,10 @@ void kunmap_local_indexed(void *vaddr) * PAGE_OFFSET. Warn for all other addresses which are in * the user space part of the virtual address space. */ - if (!kmap_high_unmap_local(addr)) - WARN_ON_ONCE(addr < PAGE_OFFSET); + if (!kmap_high_unmap_local(addr)) { + if (WARN_ON_ONCE(addr < PAGE_OFFSET)) + pr_err("kunmap_local: vaddr %lx\n", (unsigned long) vaddr); + } return; }