Hello, Kernel 5.4-rc5: Error message without limitation to 3.5G RAM: [ 25.654852] bttv 1000:04:05.0: overflow 0x00000000fe077000+4096 of DMA mask ffffffff bus mask df000000 The kernel configured the bttv card for DMA in the upper region of RAM but the device believes that it only supports 32-bit addressing. The TV card works without the limitation to 3.5G RAM with the kernel 4.20.17. The issue has started with the PowerPC updates 4.21-1 [1] Cheers, Christian [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8d6973327ee84c2f40dd9efd8928d4a1186c96e2
> On 29. Oct 2019, at 05:49, Christian Zigotzky <chzigot...@xenosoft.de> wrote: > > Hello, > > The bug with some PCI devices if you have more than 3.5G installed still > exist in the RC5. Could you please look in the following bug report. > > Link: https://bugzilla.kernel.org/show_bug.cgi?id=205201 > > Thanks, > Christian
