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Particles with multires crash
Closed, ResolvedPublic

Description

Blender Version
Broken: b94ec178a206

Short description of error
When using a particle system on an object with a multiresolution modifer, Blender will crash when attempting a stroke in sculpt mode.

Event Timeline

Sebastian Parborg (zeddb) triaged this task as Confirmed, Medium priority.Mar 6 2019, 5:53 PM

Backtrace:

Thread 25 "blender" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffd57fe700 (LWP 20388)]
0x0000555558323336 in subdiv_ccg_recalc_modified_inner_normal_task (userdata_v=0x7fffffffd0d0, face_index=10, tls_v=0x7fffd57fdb60)
    at /home/zed/programmering/blender_master/blender/source/blender/blenkernel/intern/subdiv_ccg.c:908
908		const int num_face_grids = face->num_grids;
(gdb) bt
#0  0x0000555558323336 in subdiv_ccg_recalc_modified_inner_normal_task (userdata_v=0x7fffffffd0d0, face_index=10, tls_v=0x7fffd57fdb60)
    at /home/zed/programmering/blender_master/blender/source/blender/blenkernel/intern/subdiv_ccg.c:908
#1  0x00005555586921a9 in parallel_range_func (pool=0x7fffcbf64008, userdata_chunk=0x7fffffffcfb0, thread_id=2)
    at /home/zed/programmering/blender_master/blender/source/blender/blenlib/intern/task.c:1038
#2  0x000055555868f8d5 in task_scheduler_thread_run (thread_p=0x7fffd89f2068)
    at /home/zed/programmering/blender_master/blender/source/blender/blenlib/intern/task.c:439
#3  0x00007ffff63993c3 in start_thread () from /lib64/libpthread.so.0
#4  0x00007ffff134e3ef in clone () from /lib64/libc.so.6