On 5/22/18 9:27 AM, Bart Van Assche wrote: > Avoid that complaints similar to the following appear in the kernel log > if the number of zones is sufficiently large: > > fio: page allocation failure: order:9, mode:0x140c0c0(GFP_KERNEL|__GFP_COMP|__GFP_ZERO), nodemask=(null) > Call Trace: > dump_stack+0x63/0x88 > warn_alloc+0xf5/0x190 > __alloc_pages_slowpath+0x8f0/0xb0d > __alloc_pages_nodemask+0x242/0x260 > alloc_pages_current+0x6a/0xb0 > kmalloc_order+0x18/0x50 > kmalloc_order_trace+0x26/0xb0 > __kmalloc+0x20e/0x220 > blkdev_report_zones_ioctl+0xa5/0x1a0 > blkdev_ioctl+0x1ba/0x930 > block_ioctl+0x41/0x50 > do_vfs_ioctl+0xaa/0x610 > SyS_ioctl+0x79/0x90 > do_syscall_64+0x79/0x1b0 > entry_SYSCALL_64_after_hwframe+0x3d/0xa2 Applied, thanks. -- Jens Axboe