Blender crashes when rendering with cycles in the viewport with OSL enabled #87124

New Issue

Charbel Nicolas · 2021-04-01T20:48:06+02:00

Charbel Nicolas commented

2021-04-01 20:48:06 +02:00

System Information
Operating system: Arch Linux
Graphics card: GeForce GTX 980 (driver version 460.67)

Blender Version
Broken: 2.92.0
Worked: I don't know.

Short description of error

When enabling cycles as the viewport renderer blender crashes to desktop with a segfault.

Exact steps for others to reproduce the error

Open the attached blend file, enable the Display Render Preview under Viewport Shading. Then go to the Render Properties and change the Render Engine from EEVEE to Cycles and it will crash, at least on my computer.

These are the journactl entries from the crash:

Apr 01 12:33:18 ogun blender.desktop[2770]: Read prefs: /home/charbel/.config/blender/2.92/config/userpref.blend
Apr 01 12:33:18 ogun blender.desktop[2770]: Read blend: /home/charbel/Documents/Blender/cocinagode.blend
Apr 01 12:33:18 ogun blender.desktop[2770]: Writing: /tmp/cocinagode.crash.txt
Apr 01 12:33:18 ogun blender.desktop[2770]: Writing: /tmp/cocinagode.crash.txt
Apr 01 12:33:18 ogun audit[2770]: ANOM_ABEND auid=1000 uid=1000 gid=1000 ses=4 pid=2770 comm="blender" exe="/usr/bin/blender" sig=11 res=1
Apr 01 12:33:18 ogun kernel: blender[2821]: segfault at 10 ip 00007fbcda04f0d0 sp 00007fbc15c785a0 error 4
Apr 01 12:33:18 ogun kernel: Code: f8 03 01 c2 49 39 c9 75 e9 48 8b 45 88 4c 8d 1c 10 49 c1 e3 05 4c 89 e0 45 31 c9 ba 38 00 00 00 4c 29 d8 4c >
Apr 01 12:33:18 ogun kernel: audit: type=1701 audit(1617301998.056:86): auid=1000 uid=1000 gid=1000 ses=4 pid=2770 comm="blender" exe="/usr/bin>
Apr 01 12:33:18 ogun systemd- [x]: Created slice system-systemd\x2dcoredump.slice.
Apr 01 12:33:18 ogun audit: BPF prog-id=25 op=LOAD
Apr 01 12:33:18 ogun audit: BPF prog-id=26 op=LOAD
Apr 01 12:33:18 ogun systemd- [x]: Started Process Core Dump (PID 2822/UID 0).
Apr 01 12:33:18 ogun audit- [x]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@0-2822-0 comm="systemd" exe=>
Apr 01 12:33:18 ogun kernel: audit: type=1334 audit(1617301998.062:87): prog-id=25 op=LOAD
Apr 01 12:33:18 ogun kernel: audit: type=1334 audit(1617301998.062:88): prog-id=26 op=LOAD
Apr 01 12:33:18 ogun kernel: audit: type=1130 audit(1617301998.062:89): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@0>
Apr 01 12:33:19 ogun systemd-coredump[2823]: Core file was truncated to 2147483648 bytes.
Apr 01 12:33:20 ogun systemd-coredump[2823]: Process 2770 (blender) of user 1000 dumped core.

                                           
                                           Stack trace of thread 2819:

                                         - 0  0x00007fbcda04f0d0 n/a (n/a + 0x0)
                                         - 1  0x00007fbcda027215 n/a (n/a + 0x0)

Apr 01 12:33:20 ogun systemd- [x]: systemd-coredump@0-2822-0.service: Succeeded.
Apr 01 12:33:20 ogun kernel: audit: type=1131 audit(1617302000.508:90): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@0>
Apr 01 12:33:20 ogun audit- [x]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@0-2822-0 comm="systemd" exe=">
Apr 01 12:33:20 ogun systemd[836]: app-gnome-blender-2770.scope: Succeeded.
Apr 01 12:33:20 ogun audit: BPF prog-id=26 op=UNLOAD
Apr 01 12:33:20 ogun audit: BPF prog-id=25 op=UNLOAD
Apr 01 12:33:20 ogun kernel: audit: type=1334 audit(1617302000.651:91): prog-id=26 op=UNLOAD
Apr 01 12:33:20 ogun kernel: audit: type=1334 audit(1617302000.651:92): prog-id=25 op=UNLOAD
Apr 01 12:33:26 ogun systemd[836]: Started Application launched by gnome-shell.
Apr 01 12:33:26 ogun blender.desktop[2829]: [ALSOFT] (EE) Failed to set real-time priority for thread: Operation not permitted (1)
Apr 01 12:33:26 ogun blender.desktop[2829]: [ALSOFT] (EE) Failed to set real-time priority for thread: Operation not permitted (1)
Apr 01 12:33:30 ogun blender.desktop[2829]: Read prefs: /home/charbel/.config/blender/2.92/config/userpref.blend
Apr 01 12:33:30 ogun blender.desktop[2829]: Saved session recovery to '/tmp/quit.blend'
Apr 01 12:33:30 ogun blender.desktop[2829]: Blender quit

cocinagode.blend

**System Information** Operating system: Arch Linux Graphics card: GeForce GTX 980 (driver version 460.67) **Blender Version** Broken: 2.92.0 Worked: I don't know. **Short description of error** When enabling cycles as the viewport renderer blender crashes to desktop with a segfault. **Exact steps for others to reproduce the error** Open the attached blend file, enable the Display Render Preview under Viewport Shading. Then go to the Render Properties and change the Render Engine from EEVEE to Cycles and it will crash, at least on my computer. These are the journactl entries from the crash: Apr 01 12:33:18 ogun blender.desktop[2770]: Read prefs: /home/charbel/.config/blender/2.92/config/userpref.blend Apr 01 12:33:18 ogun blender.desktop[2770]: Read blend: /home/charbel/Documents/Blender/cocinagode.blend Apr 01 12:33:18 ogun blender.desktop[2770]: Writing: /tmp/cocinagode.crash.txt Apr 01 12:33:18 ogun blender.desktop[2770]: Writing: /tmp/cocinagode.crash.txt Apr 01 12:33:18 ogun audit[2770]: ANOM_ABEND auid=1000 uid=1000 gid=1000 ses=4 pid=2770 comm="blender" exe="/usr/bin/blender" sig=11 res=1 Apr 01 12:33:18 ogun kernel: blender[2821]: segfault at 10 ip 00007fbcda04f0d0 sp 00007fbc15c785a0 error 4 Apr 01 12:33:18 ogun kernel: Code: f8 03 01 c2 49 39 c9 75 e9 48 8b 45 88 4c 8d 1c 10 49 c1 e3 05 4c 89 e0 45 31 c9 ba 38 00 00 00 4c 29 d8 4c > Apr 01 12:33:18 ogun kernel: audit: type=1701 audit(1617301998.056:86): auid=1000 uid=1000 gid=1000 ses=4 pid=2770 comm="blender" exe="/usr/bin> Apr 01 12:33:18 ogun systemd- [x]: Created slice system-systemd\x2dcoredump.slice. Apr 01 12:33:18 ogun audit: BPF prog-id=25 op=LOAD Apr 01 12:33:18 ogun audit: BPF prog-id=26 op=LOAD Apr 01 12:33:18 ogun systemd- [x]: Started Process Core Dump (PID 2822/UID 0). Apr 01 12:33:18 ogun audit- [x]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@0-2822-0 comm="systemd" exe=> Apr 01 12:33:18 ogun kernel: audit: type=1334 audit(1617301998.062:87): prog-id=25 op=LOAD Apr 01 12:33:18 ogun kernel: audit: type=1334 audit(1617301998.062:88): prog-id=26 op=LOAD Apr 01 12:33:18 ogun kernel: audit: type=1130 audit(1617301998.062:89): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@0> Apr 01 12:33:19 ogun systemd-coredump[2823]: Core file was truncated to 2147483648 bytes. Apr 01 12:33:20 ogun systemd-coredump[2823]: Process 2770 (blender) of user 1000 dumped core. ``` Stack trace of thread 2819: ``` - 0 0x00007fbcda04f0d0 n/a (n/a + 0x0) - 1 0x00007fbcda027215 n/a (n/a + 0x0) Apr 01 12:33:20 ogun systemd- [x]: systemd-coredump@0-2822-0.service: Succeeded. Apr 01 12:33:20 ogun kernel: audit: type=1131 audit(1617302000.508:90): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@0> Apr 01 12:33:20 ogun audit- [x]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@0-2822-0 comm="systemd" exe="> Apr 01 12:33:20 ogun systemd[836]: app-gnome-blender-2770.scope: Succeeded. Apr 01 12:33:20 ogun audit: BPF prog-id=26 op=UNLOAD Apr 01 12:33:20 ogun audit: BPF prog-id=25 op=UNLOAD Apr 01 12:33:20 ogun kernel: audit: type=1334 audit(1617302000.651:91): prog-id=26 op=UNLOAD Apr 01 12:33:20 ogun kernel: audit: type=1334 audit(1617302000.651:92): prog-id=25 op=UNLOAD Apr 01 12:33:26 ogun systemd[836]: Started Application launched by gnome-shell. Apr 01 12:33:26 ogun blender.desktop[2829]: [ALSOFT] (EE) Failed to set real-time priority for thread: Operation not permitted (1) Apr 01 12:33:26 ogun blender.desktop[2829]: [ALSOFT] (EE) Failed to set real-time priority for thread: Operation not permitted (1) Apr 01 12:33:30 ogun blender.desktop[2829]: Read prefs: /home/charbel/.config/blender/2.92/config/userpref.blend Apr 01 12:33:30 ogun blender.desktop[2829]: Saved session recovery to '/tmp/quit.blend' Apr 01 12:33:30 ogun blender.desktop[2829]: Blender quit [cocinagode.blend](https://archive.blender.org/developer/F9917122/cocinagode.blend)

Charbel Nicolas commented

2021-04-01 20:48:06 +02:00

Added subscriber: @charbel

Paul Melis commented

2021-04-06 20:45:45 +02:00

Added subscriber: @PaulMelis

Paul Melis commented

2021-04-06 20:45:45 +02:00

Seeing the same crash on this file on my own Arch Linux system. Seems to be OSL related, as disabling it on the render panel makes the crash go away. On a local 2.93 build (19ff2479cf, which uses the Arch package for OSL 1.11.12.0-1) I get the following stacktrace:

Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007fa1533820d0 in OSL_v1_11::pvt::LLVM_Util::call_function(llvm::Value*, OpenImageIO_v2_2::span<llvm::Value* const, -1l>) () from /usr/lib/liboslexec.so.1.11
--Type <RET> for more, q to quit, c to continue without paging--q
Quit
(gdb) bt
- 0  0x00007fa1533820d0 in OSL_v1_11::pvt::LLVM_Util::call_function(llvm::Value*, OpenImageIO_v2_2::span<llvm::Value* const, -1l>) () from /usr/lib/liboslexec.so.1.11
- 1  0x00007fa15335a215 in OSL_v1_11::pvt::llvm_gen_closure(OSL_v1_11::pvt::BackendLLVM&, int) () from /usr/lib/liboslexec.so.1.11
- 2  0x00007fa1533727b6 in OSL_v1_11::pvt::BackendLLVM::build_llvm_code(int, int, llvm::BasicBlock*) () from /usr/lib/liboslexec.so.1.11
- 3  0x00007fa153375c36 in OSL_v1_11::pvt::BackendLLVM::build_llvm_instance(bool) () from /usr/lib/liboslexec.so.1.11
- 4  0x00007fa15337770a in OSL_v1_11::pvt::BackendLLVM::run() () from /usr/lib/liboslexec.so.1.11
- 5  0x00007fa15322090d in OSL_v1_11::pvt::ShadingSystemImpl::optimize_group(OSL_v1_11::ShaderGroup&, OSL_v1_11::ShadingContext*, bool) () from /usr/lib/liboslexec.so.1.11
- 6  0x00007fa15322389b in OSL_v1_11::pvt::ShadingSystemImpl::optimize_all_groups(int, int, int, bool) () from /usr/lib/liboslexec.so.1.11
- 7  0x00007fa14254dbc4 in std::execute_native_thread_routine (__p=0x7fa115be5b80) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
- 8  0x00007fa1560ea299 in start_thread () from /usr/lib/libpthread.so.0
- 9  0x00007fa14226b053 in clone () from /usr/lib/libc.so.6

Seeing the same crash on this file on my own Arch Linux system. Seems to be OSL related, as disabling it on the render panel makes the crash go away. On a local 2.93 build (19ff2479cf68, which uses the Arch package for OSL 1.11.12.0-1) I get the following stacktrace: ``` Program terminated with signal SIGSEGV, Segmentation fault. #0 0x00007fa1533820d0 in OSL_v1_11::pvt::LLVM_Util::call_function(llvm::Value*, OpenImageIO_v2_2::span<llvm::Value* const, -1l>) () from /usr/lib/liboslexec.so.1.11 --Type <RET> for more, q to quit, c to continue without paging--q Quit (gdb) bt - 0 0x00007fa1533820d0 in OSL_v1_11::pvt::LLVM_Util::call_function(llvm::Value*, OpenImageIO_v2_2::span<llvm::Value* const, -1l>) () from /usr/lib/liboslexec.so.1.11 - 1 0x00007fa15335a215 in OSL_v1_11::pvt::llvm_gen_closure(OSL_v1_11::pvt::BackendLLVM&, int) () from /usr/lib/liboslexec.so.1.11 - 2 0x00007fa1533727b6 in OSL_v1_11::pvt::BackendLLVM::build_llvm_code(int, int, llvm::BasicBlock*) () from /usr/lib/liboslexec.so.1.11 - 3 0x00007fa153375c36 in OSL_v1_11::pvt::BackendLLVM::build_llvm_instance(bool) () from /usr/lib/liboslexec.so.1.11 - 4 0x00007fa15337770a in OSL_v1_11::pvt::BackendLLVM::run() () from /usr/lib/liboslexec.so.1.11 - 5 0x00007fa15322090d in OSL_v1_11::pvt::ShadingSystemImpl::optimize_group(OSL_v1_11::ShaderGroup&, OSL_v1_11::ShadingContext*, bool) () from /usr/lib/liboslexec.so.1.11 - 6 0x00007fa15322389b in OSL_v1_11::pvt::ShadingSystemImpl::optimize_all_groups(int, int, int, bool) () from /usr/lib/liboslexec.so.1.11 - 7 0x00007fa14254dbc4 in std::execute_native_thread_routine (__p=0x7fa115be5b80) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80 - 8 0x00007fa1560ea299 in start_thread () from /usr/lib/libpthread.so.0 - 9 0x00007fa14226b053 in clone () from /usr/lib/libc.so.6 ```

Philipp Oeser commented

2021-04-20 13:08:54 +02:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2021-04-20 13:08:54 +02:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Philipp Oeser commented

2021-04-20 13:08:54 +02:00

No crash here [checked both 2.92 and 2.93 beta / 3.0.0 alpha].
Just to make sure: is this still an issue in fresh builds from https://builder.blender.org/download/?

No crash here [checked both 2.92 and 2.93 beta / 3.0.0 alpha]. Just to make sure: is this still an issue in fresh builds from https://builder.blender.org/download/?

Charbel Nicolas commented

2021-04-20 15:44:16 +02:00

Like Paul Melis said, it is indeed related to Open Shading Language. When I uncheck the box it doesn't crash on 2.92.

Charbel Nicolas changed title from ~~Blender crashes when rendering with cycles in the viewport~~ to Blender crashes when rendering with cycles in the viewport with OSL enabled

2021-04-20 15:45:46 +02:00

Charbel Nicolas commented

2021-04-20 15:50:32 +02:00

In #87124#1149406, @lichtwerk wrote:
No crash here [checked both 2.92 and 2.93 beta / 3.0.0 alpha].
Just to make sure: is this still an issue in fresh builds from https://builder.blender.org/download/?

It's no longer crashing with OSL enabled on Blender 2.93 beta. It has been fixed!

> In #87124#1149406, @lichtwerk wrote: > No crash here [checked both 2.92 and 2.93 beta / 3.0.0 alpha]. > Just to make sure: is this still an issue in fresh builds from https://builder.blender.org/download/? It's no longer crashing with OSL enabled on Blender 2.93 beta. It has been fixed!

Philipp Oeser commented

2021-04-20 17:24:30 +02:00

Changed status from 'Needs User Info' to: 'Resolved'

Philipp Oeser closed this issue

2021-04-20 17:24:30 +02:00

Philipp Oeser self-assigned this 2021-04-20 17:24:30 +02:00

Philipp Oeser commented

2021-04-20 17:24:30 +02:00

Oh, good to hear, this might have been fixed by a631a9eb1f

Will close, but feel free to comment if issues creep up again.

Oh, good to hear, this might have been fixed by a631a9eb1f Will close, but feel free to comment if issues creep up again.

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Blender crashes when rendering with cycles in the viewport with OSL enabled #87124