On Mon, Jan 28, 2013 at 03:09:03PM +0100, Zdenek Kabelac wrote: > I'm getting tthis warning printed with current 3.8-rc kernel > My hw is Lenovo T61. > > > [ 5.920284] iwl3945 0000:03:00.0: loaded firmware version 15.32.2.9 > [ 5.976605] systemd[1]: Started NFS file locking service.. > [ 5.982624] NFSD: starting 90-second grace period (net ffffffff81aa08c0) > [ 5.987930] ------------[ cut here ]------------ > [ 5.988026] WARNING: at lib/dma-debug.c:933 check_unmap+0x4ae/0x9a0() > [ 5.988111] Hardware name: 6464CTO > [ 5.988194] iwl3945 0000:03:00.0: DMA-API: device driver failed > to check map error[device address=0x00000000bb7a7800] [size=4096 > bytes] [mapped as page] We have to check dma_map_*() error. Fixing all of calls to dma_map* in iwlegacy is not so simple. For now, you can just ignore this WARNING or disable CONFIG_DMA_API_DEBUG. Stanislaw -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
