I built a Trusty test kernel with CONFIG_DMA_CMA not set. The test kernel can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1362261/
Can you test this kernel can confirm it fixes the bug? Be sure to install both the linux-image and linux-image-extra .deb packages. If it does fix the bug, I can submit and SRU request to have CONFIG_DMA_CMA disabled. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1362261 Title: CONFIG_DMA_CMA causes ttm performance problems/hangs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1362261/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
