=== shuduo-afk is now known as shuduo === JanC_ is now known as JanC [08:52] FYI: lp 1566726 [08:52] Launchpad bug 1566726 in linux-lts-utopic (Ubuntu) "System freeze after update to 3.16.0-69-generic [NULL pointer reference in radeon_fence_ref]" [Undecided,New] https://launchpad.net/bugs/1566726 [09:03] That sounds ungood. [09:03] jsalisbury: ^-- Care to escalate that a bit? [10:32] kamal, ^ [14:35] infinity, thanks for the pointer on that bug. yofel, I'll post a test kernel shortly. [14:44] apw, kamal, looks like the offending commit is already reverted in -next: [14:44] a907233 Revert "drm/radeon: hold reference to fences in radeon_sa_bo_new" [14:44] 72a5cff drm/radeon: hold reference to fences in radeon_sa_bo_new [14:45] * jsalisbury is building a test kernel of -next for testing [14:45] jsalisbury, ha! yup, I was _just_ confirming exactly that with Luis. [14:47] jsalisbury, that is indeed the fix, and yes, its already committed. How about you build a test kernel (either of the top of utopic-next, or with just that revert applied), so we can get the bug submitters to verify it? [14:48] kamal, I have test kernel of the top of utopic-next building now. I'll have it verified [14:48] jsalisbury, very good, thanks [14:48] np [14:49] jsalisbury, also fyi, I've determined that the problem should only affect 3.16 (so Utopic only, no other Ubuntu kernels) [14:49] great [15:06] hey all, I'm trying to test an upstream kernel (http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.6-rc2-wily/), how do I apply the patches provided? Applying them naively doesn't seem to set the permissions right? [20:05] jsalisbury: exciting, coming really close now [20:05] where can i look that bad commit 5044635f00, is that a commit from linus? [20:06] i mean linus' repo linux on github [20:37] genkgo, yes, it's in Linus' tree. That particular commit isn't the cause. That was just the tip of the kernel tree for that test kernel build. [20:37] ok, i think i don't get what a bisect actually means [20:38] i will read upon that [20:38] genkgo, there is a wiki page that has some info: https://wiki.ubuntu.com/Kernel/KernelBisection [20:38] jsalisbury: wonderful, i will read that! [21:21] jsalisbury: ah, i get it, it just a fast way to pick a wrong commit [21:22] just like you did by picking the latest good and first bad version of the kernel [21:22] but only with those sha identifiers it's less obvious