Bug 119861
| Summary: | Kernel BUG() when Xorg server is started using nouveau | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | Dmitrii Tcvetkov (demfloro) |
| Component: | Video(DRI - non Intel) | Assignee: | drivers_video-dri |
| Status: | CLOSED PATCH_ALREADY_AVAILABLE | ||
| Severity: | high | CC: | demfloro, dev |
| Priority: | P1 | ||
| Hardware: | x86-64 | ||
| OS: | Linux | ||
| Kernel Version: | 4.7-rc2 | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
| Attachments: |
dmesg
Xorg.0.log Xorg.conf kernel config |
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Created attachment 219401 [details]
Xorg.0.log
Created attachment 219411 [details]
Xorg.conf
Created attachment 219421 [details]
kernel config
Probably the same bug as seen on imx-drm by Philipp and fixed with the following 2 patches: https://patchwork.kernel.org/patch/9151037/ https://patchwork.kernel.org/patch/9151039/ Please test if those also fix this bug. Thanks. (In reply to Lucas Stach from comment #4) > Probably the same bug as seen on imx-drm by Philipp and fixed with the > following 2 patches: > https://patchwork.kernel.org/patch/9151037/ > https://patchwork.kernel.org/patch/9151039/ > > Please test if those also fix this bug. Thanks. Thanks, the patch helps on 4.7-rc2, Xorg starts like with 4.6 without errors in dmesg. Although 4.7-rc3 panics with same .config even without the patch (I can't see anything on screen and I assume it's a panic because kernel reacts on panic= parameter). Looks like it is another issue. I'll make separate report when get any info with netconsole. commit fffc5f59f2c68ca859c3f92b224393ed3adbe1ca Author: Philipp Zabel <p.zabel@pengutronix.de> Date: Thu Jun 2 19:27:51 2016 +0200 drm/crtc: fix connector reference counting mismatch in drm_crtc_helper_set_config |
Created attachment 219391 [details] dmesg OS: Archlinux, Video adapter: NVIDIA GeForce GTX 780 Ti, xf86-nouveau version: 1.0.12 When I run startx BUG: unable to handle kernel NULL pointer dereference appers in dmesg and screen stays black. Problem appeared in 4.7 kernel, previous kernels work fine.