Raspbian: FIQ DMA bounce buffers warning

[^rooker]

No time to investigate this, but here are some strange "WARNING" lines from /var/log/messages on a Raspberry Pi 2 (running Raspbian 8.0):

Code: Select all

Mar 28 16:17:24 kernel: [    2.372861] WARN::dwc_otg_hcd_init:1047: FIQ DMA bounce buffers: virt = 0xdd814000 dma = 0x5d814000 len=9024
Mar 28 16:17:24 kernel: [    2.423993] WARN::hcd_init_fiq:413: FIQ on core 0 at 0xc0408ab8
Mar 28 16:17:24 kernel: [    2.432711] WARN::hcd_init_fiq:414: FIQ ASM at 0xc0408d94 length 36
Mar 28 16:17:24 kernel: [    2.441666] WARN::hcd_init_fiq:439: MPHI regs_base at 0xde898000
Mar 28 16:17:31 kernel: [   35.378619] warning: process `colord-sane' used the deprecated sysctl system call with 8.1.2.
Mar 28 17:04:32 kernel: [    2.395509] WARN::dwc_otg_hcd_init:1047: FIQ DMA bounce buffers: virt = 0xdd814000 dma = 0x5d814000 len=9024
Mar 28 17:04:32 kernel: [    2.446583] WARN::hcd_init_fiq:413: FIQ on core 0 at 0xc0408ab8
Mar 28 17:04:32 kernel: [    2.455295] WARN::hcd_init_fiq:414: FIQ ASM at 0xc0408d94 length 36
Mar 28 17:04:32 kernel: [    2.464271] WARN::hcd_init_fiq:439: MPHI regs_base at 0xde898000