Re: uhci_hcd: DMA-API: cpu touching an active dma mapped cacheline

2014-03-06 Thread Alan Stern
On Thu, 6 Mar 2014, Dan Williams wrote: > >>> Mapped at: > >>> [] debug_dma_alloc_coherent+0x2b/0xc3 > >>> [] dma_pool_alloc+0x14f/0x2fd > >>> [] uhci_alloc_td.isra.35+0x24/0x60 > >>> [] uhci_start+0x272/0x56b > >>> [] usb_add_hcd+0x252/0x774 > >> > >> I don't get it. As the name indicates,

Re: uhci_hcd: DMA-API: cpu touching an active dma mapped cacheline

2014-03-06 Thread Dan Williams
On Thu, Mar 6, 2014 at 10:31 AM, Dan Williams wrote: > On Thu, Mar 6, 2014 at 10:04 AM, Alan Stern wrote: >> On Wed, 5 Mar 2014, Dave Jones wrote: >> >>> WARNING: CPU: 3 PID: 25477 at lib/dma-debug.c:593 >>> debug_dma_assert_idle+0x1ba/0x223() >>> uhci_hcd :00:1d.2: DMA-API: cpu touching an

Re: uhci_hcd: DMA-API: cpu touching an active dma mapped cacheline

2014-03-06 Thread Dan Williams
On Thu, Mar 6, 2014 at 10:04 AM, Alan Stern wrote: > On Wed, 5 Mar 2014, Dave Jones wrote: > >> WARNING: CPU: 3 PID: 25477 at lib/dma-debug.c:593 >> debug_dma_assert_idle+0x1ba/0x223() >> uhci_hcd :00:1d.2: DMA-API: cpu touching an active dma mapped cacheline >> [cln=0x02355f80] >> M

Re: uhci_hcd: DMA-API: cpu touching an active dma mapped cacheline

2014-03-06 Thread Alan Stern
On Wed, 5 Mar 2014, Dave Jones wrote: > WARNING: CPU: 3 PID: 25477 at lib/dma-debug.c:593 > debug_dma_assert_idle+0x1ba/0x223() > uhci_hcd :00:1d.2: DMA-API: cpu touching an active dma mapped cacheline > [cln=0x02355f80] > Modules linked in: fuse tun l2tp_ppp l2tp_netlink l2tp_core c

uhci_hcd: DMA-API: cpu touching an active dma mapped cacheline

2014-03-05 Thread Dave Jones
WARNING: CPU: 3 PID: 25477 at lib/dma-debug.c:593 debug_dma_assert_idle+0x1ba/0x223() uhci_hcd :00:1d.2: DMA-API: cpu touching an active dma mapped cacheline [cln=0x02355f80] Modules linked in: fuse tun l2tp_ppp l2tp_netlink l2tp_core can_raw can_bcm scsi_transport_iscsi nfc caif_soc