On Wed 15-11-17 14:17:52, YASUAKI ISHIMATSU wrote: > Hi Michal and Mel, > > To reproduce the issue, I specified the large trace buffer. The issue also occurs with > trace_buf_size=12M and movable_node on 4.14.0. This is still 10x more than the default. Why do you need it in the first place? You can of course find a size that will not fit into the initial memory but I am questioning why do you want something like that during early boot in the first place. The whole deferred struct page allocation operates under assumption that there are no large page allocator consumers that early during the boot process. If this assumption is not correct then we probably need a generic way to describe this. Add-hoc trace specific thing is far from idea, imho. If anything the first approach to disable the deferred initialization via kernel command line option sounds much more appropriate and simpler to me. -- Michal Hocko SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
