https://bugs.winehq.org/show_bug.cgi?id=55909
--- Comment #3 from teru ktmizugaki+wine@gmail.com --- Created attachment 75461 --> https://bugs.winehq.org/attachment.cgi?id=75461 grepped traces around "free(): invalid pointer"
It seems like problem exists in `settings_handler.free_modes( modes );` near end of X11DRV_UpdateDisplayDevices() in dlls/winex11.drv/display.c Commenting out this line and wine starts normaly.
I got this by checking relevant code of trace logs near the "free(): invalid pointer" obtained using following command:
``` /opt/wine-devel/bin/wineserver -k WINEDEBUG=+all,+timestamps,+thread,+relay /opt/wine-devel/bin/wine winecfg 2>wine.log grep -B 15 -A 5 'free(): invalid pointer' wine.log ```