[Therion] loch segmentation fault at launch
Bill Gee
bgee at campercaver.net
Mon Jan 13 21:13:06 CET 2025
Thanks Benedikt and Martin for taking a look at this. The first step in
fixing a problem is figuring out how to duplicate it. So far we are not
having much luck with that!
So far the only thing that jumps out at me is that I am using an older
computer. Martin's Intel display is much newer than mine, and Benedikt
is using an AMD display adapter. I wonder if the Intel i915 display
driver on my hardware is missing some needed function?
===============
Bill Gee
On 1/13/25 13:25, Benedikt Hallinger via Therion wrote:
> Same here, confirming a stable loch.
>
> Device-1: Advanced Micro Devices [AMD/ATI] Ellesmere [Radeon RX
> 470/480/570/570X/580/580X/590] driver: amdgpu v: kernel
> Display: wayland server: X.org v: 1.21.1.15 with: Xwayland v: 24.1.4
> compositor: kwin_wayland driver: X: loaded: amdgpu
> unloaded: fbdev,modesetting,vesa dri: radeonsi gpu: amdgpu
> resolution: 1920x1080
> API: EGL v: 1.5 drivers: kms_swrast,radeonsi,swrast
> platforms: gbm,wayland,x11,surfaceless,device
> API: OpenGL v: 4.6 compat-v: 4.5 vendor: amd mesa v: 24.2.8-1
> renderer: AMD
> Radeon RX 580 Series (radeonsi polaris10 LLVM 19.1.4 DRM 3.59
> 6.12.6-amd64)
> API: Vulkan v: 1.3.296 drivers: N/A surfaces: xcb,xlib,wayland
>
> Debian GNU/Linux trixie
> Linux segin 6.12.6-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.12.6-1
> (2024-12-21) x86_64 GNU/Linux
>
>
>
> Am 2025-01-13 18:45, schrieb Martin Budaj:
>> Hi,
>>
>> Loch runs fine on a Debian + KDE machine with this configuration:
>>
>> 1) no xwaylandvideobridge installed
>> 2) inxi -G output:
>> Graphics:
>> Device-1: Intel CometLake-U GT2 [UHD Graphics] driver: i915 v: kernel
>> Display: wayland server: X.org v: 1.21.1.15 with: Xwayland v: 24.1.4
>> compositor: kwin_wayland driver: X: loaded: modesetting unloaded:
>> fbdev,vesa
>> dri: iris gpu: i915 resolution: 2194x1234
>> API: EGL v: 1.5 drivers: iris,swrast
>> platforms: gbm,wayland,x11,surfaceless,device
>> API: OpenGL v: 4.6 compat-v: 4.5 vendor: intel mesa v: 24.2.8-1
>> renderer: Mesa Intel UHD Graphics (CML GT2)
>> API: Vulkan Message: No Vulkan data available.
>>
>> M.
>>
>> On Mon, Jan 6, 2025 at 4:44 PM Bill Gee <bgee at campercaver.net> wrote:
>>>
>>> I did not pursue this during the holidays. Now that Therion 6.3.3 is
>>> out, it is probably time to dig into it a bit deeper.
>>>
>>> I downloaded Therion 6.3.3 from the git repository, compiled and
>>> installed it. No errors, that all went very smoothly.
>>>
>>> Loch still does not run in a Wayland session. It gives a segmentation
>>> error and dumps core within about 2 seconds of launching.
>>>
>>> I tried it on three different machines. They all have the same basic
>>> configuration. All three fail in the same way.
>>>
>>> SCINU reports that Loch works in a Wayland session running on Debian
>>> Testing. I am on Fedora 41. Something is different, but I have no idea
>>> what it is. Could it be a different version of xwayland?
>>>
>>> A bit more information about my system:
>>>
>>> bgee at main2:~$ rpm -qi xwaylandvideobridge
>>> Name : xwaylandvideobridge
>>> Version : 0.4.0
>>> Release : 7.fc41
>>> Architecture: x86_64
>>> Install Date: Fri Nov 8 07:08:53 2024
>>> Group : Unspecified
>>> Size : 214303
>>> License : (GPL-2.0-only or GPL-3.0-only) and LGPL-2.0-or-later and
>>> BSD-3-Clause
>>> Signature : RSA/SHA256, Thu Oct 31 05:14:12 2024, Key ID
>>> d0622462e99d6ad1
>>> Source RPM : xwaylandvideobridge-0.4.0-7.fc41.src.rpm
>>> Build Date : Wed Oct 30 15:46:50 2024
>>> <snip>
>>>
>>> bgee at main2:~$ inxi -G
>>> Graphics:
>>> Device-1: Intel Xeon E3-1200 v3/4th Gen Core Processor Integrated
>>> Graphics
>>> driver: i915 v: kernel
>>> Device-2: Logitech Webcam C270 driver: snd-usb-audio,uvcvideo
>>> type: USB
>>> Display: wayland server: X.org v: 1.21.1.15 with: Xwayland v: 24.1.4
>>> compositor: kwin_wayland driver: X: loaded: modesetting unloaded:
>>> fbdev,vesa
>>> dri: crocus gpu: i915 resolution: 1920x1080
>>> API: EGL v: 1.5 drivers: crocus,swrast
>>> platforms: gbm,wayland,x11,surfaceless,device
>>> API: OpenGL v: 4.6 compat-v: 4.5 vendor: intel mesa v: 24.2.8
>>> renderer: Mesa Intel HD Graphics 4600 (HSW GT2)
>>> API: Vulkan v: 1.3.296 drivers: N/A surfaces: xcb,xlib,wayland
>>>
>>> This system is a Dell Optiplex. The other two systems are a Dell laptop
>>> and a Lenovo laptop. All are running Intel i915 displays.
>>>
>>> ===============
>>> Bill Gee
>>>
>>> On 11/25/24 15:09, Scinu via Therion wrote:
>>> >> On Thu, Nov 21, 2024 at 2:14 PM Bill Gee <bgee at campercaver.net>
>>> wrote:
>>> >>
>>> >>> Confirmed - This problem has something to do with Wayland. I logged
>>> >>> into a test computer using X instead of Wayland. Loch starts
>>> without
>>> >>> error. Logging out and back in with a Wayland session causes
>>> loch to fail.
>>> >>
>>> >> Hmm, no problem in the Wayland session with KDE on Debian Testing
>>> (and
>>> >> no problem in the X session, either). Any other Wayland users here
>>> >> that could report crashes or good operation?
>>> >
>>> > With a fresh install from the AUR (archlinux user repository) loch
>>> > starts without problems on both X and wayland (sway).
>>> >
>>> > therion 6.3.1 (2024-11-22)
>>> > - using Proj 9.5.0, compiled against 9.5.0
>>> >
>>> > loch 6.3.1
>>> > (why is loch --version not implemented?)
>>> >
>>> > If I can help test more, pls let me know
>>> >
>>> > Best,
>>> >
>>> > Scinu
>>> > _______________________________________________
>>> > Therion mailing list
>>> > Therion at speleo.sk
>>> > https://mailman.speleo.sk/listinfo/therion
>>>
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