System Information
Windows 7 SP1 64bit
Radeon HD 5400 1GB
Blender Version
Broken: 2.75a
Worked: 2.74
Short description of error
Opening .blend file repeatedly crashes blender.
Exact steps for others to reproduce the error
Repeated open .blend file and after 10-20 loads blender crashes.
Was not an issue in 2.74
Memory leak?
| rB Blender | |||
| rBae00011956fc Fix T45496: Crash loading file during preview | |||
Cannot confirm that here on linux. Please always attach a .blend file to help reproducing the issue (and check the issue still happens with latest build from our buildbot).
Also, if it was (heavy) memleak, you should be able to see it by following Blender's memsize in the task manager…
I created a new .blend file with just the basic cube and it doesn't happen.
But if I load a file that was upgraded from 2.74 then it happens (any of the 50+ models I have seem to cause it).
I'll attach a sample that does it.
I checked if memory increased and it doesn't so it's not a memory leak (that was just a quick guess).
I tried with buildbot blender-2.75-23c7603-win64.zip (downloaded just now) and it still happens.
Also tried with the Linux build (buildbot same date as win64 above) and it took 26 loads before I got a SEG_FAULT.
Here is a crash message generated on Linux:
./blender(BLI_system_backtrace+0x1d) [0x1a0991d]
./blender() [0x103c9a4]
./blender() [0x103cb81]
/lib/x86_64-linux-gnu/libc.so.6(+0x352f0) [0x7f81a32ff2f0]
./blender() [0x11c2ecc]
./blender(ED_preview_draw+0x226) [0x11c3d16]
./blender() [0x1398545]
./blender(ui_draw_but+0x7a6) [0x139ced6]
./blender(UI_block_draw+0x18e) [0x138349e]
./blender(UI_panels_draw+0x5e) [0x13abcae]
./blender(ED_region_panels+0x529) [0x1353d79]
./blender() [0x13cdf3b]
./blender(ED_region_do_draw+0xa06) [0x1352ce6]
./blender() [0x10585b4]
./blender(wm_draw_update+0x582) [0x1059b82]
./blender(WM_main+0x28) [0x1045078]
./blender(main+0x52c) [0x103f6ec]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0) [0x7f81a32eaa40]
./blender() [0xf414d1]
Uuuuuh! Got a crash here, but only on 40th reload!
Looks like an issue with preview rendering, Asan says:
ASAN:SIGSEGV
=================================================================
==23769==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000050 (pc 0x000002bb4fb3 bp 0x7ffeac0782b0 sp 0x7ffeac0780d0 T0)
#0 0x2bb4fb2 in ed_preview_draw_rect /home/i74700deb64/blender/__work__/src/source/blender/editors/render/render_preview.c:565
#1 0x2bb5891 in ED_preview_draw /home/i74700deb64/blender/__work__/src/source/blender/editors/render/render_preview.c:620
#2 0x278e3b4 in widget_draw_extra_mask /home/i74700deb64/blender/__work__/src/source/blender/editors/interface/interface_widgets.c:3362
#3 0x278f8a2 in ui_draw_but /home/i74700deb64/blender/__work__/src/source/blender/editors/interface/interface_widgets.c:3743
#4 0x268b74d in UI_block_draw /home/i74700deb64/blender/__work__/src/source/blender/editors/interface/interface.c:1383
#5 0x272d968 in UI_panels_draw /home/i74700deb64/blender/__work__/src/source/blender/editors/interface/interface_panel.c:1045
#6 0x2be481c in ED_region_panels /home/i74700deb64/blender/__work__/src/source/blender/editors/screen/area.c:1948
#7 0x1f65ab9 in buttons_main_area_draw /home/i74700deb64/blender/__work__/src/source/blender/editors/space_buttons/space_buttons.c:157
#8 0x2bd66c2 in ED_region_do_draw /home/i74700deb64/blender/__work__/src/source/blender/editors/screen/area.c:517
#9 0x1eeb4cc in wm_method_draw_triple /home/i74700deb64/blender/__work__/src/source/blender/windowmanager/intern/wm_draw.c:640
#10 0x1eedb3e in wm_draw_update /home/i74700deb64/blender/__work__/src/source/blender/windowmanager/intern/wm_draw.c:1047
#11 0x1eddfab in WM_main /home/i74700deb64/blender/__work__/src/source/blender/windowmanager/intern/wm.c:493
#12 0x1edbd03 in main /home/i74700deb64/blender/__work__/src/source/creator/creator.c:1929
#13 0x7feee9771b44 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b44)
#14 0x1ed5efe (/home/i74700deb64/blender/__work__/build_cmake_dbg/bin/blender+0x1ed5efe)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV /home/i74700deb64/blender/__work__/src/source/blender/editors/render/render_preview.c:565 ed_preview_draw_rect
==23769==ABORTINGWild guess: render preview still using some code from previous file (which would mean issue is not related to reloading same file, it's more like quickly loading a new file while previews of previous one are not yet done). Just conjectures so far, this needs more investigation.