StacktraceTop: memcpy (__len=23, __src=0x0, __dest=0x7f5713877100) at /usr/include/x86_64-linux-gnu/bits/string3.h:52 exaMemcpyBox (pbox=pbox@entry=0x7fffef000de0, src=0x0, src_pitch=64, dst=0x7f5713877100 "", dst_pitch=24, pPixmap=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at ../../exa/exa_migration_classic.c:59 exaCopyDirty (migrate=migrate@entry=0x7fffef000e40, pValidDst=0x7f5713dc3e40, pValidSrc=0x7f5713dc3e50, transfer=0x7f570f28b7f0 <nouveau_exa_download_from_screen>, fallback_index=fallback_index@entry=1, sync=0x7f570e635780 <exaWaitSync>) at ../../exa/exa_migration_classic.c:240 exaCopyDirtyToSys (migrate=migrate@entry=0x7fffef000e40) at ../../exa/exa_migration_classic.c:285 exaPrepareAccessReg_mixed (pPixmap=0x7f5713dc3da0, index=<optimized out>, pReg=0x0) at ../../exa/exa_migration_mixed.c:254
StacktraceTop: 0x7f5713877100) at /usr/include/ x86_64- linux-gnu/ bits/string3. h:52 entry=0x7fffef0 00de0, src=0x0, src_pitch=64, dst=0x7f5713877100 "", dst_pitch=24, pPixmap=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at ../../exa/ exa_migration_ classic. c:59 migrate@ entry=0x7fffef0 00e40, pValidDst= 0x7f5713dc3e40, pValidSrc= 0x7f5713dc3e50, transfer= 0x7f570f28b7f0 <nouveau_ exa_download_ from_screen> , fallback_ index=fallback_ index@entry= 1, sync=0x7f570e635780 <exaWaitSync>) at ../../exa/ exa_migration_ classic. c:240 migrate@ entry=0x7fffef0 00e40) at ../../exa/ exa_migration_ classic. c:285 ssReg_mixed (pPixmap= 0x7f5713dc3da0, index=<optimized out>, pReg=0x0) at ../../exa/ exa_migration_ mixed.c: 254
memcpy (__len=23, __src=0x0, __dest=
exaMemcpyBox (pbox=pbox@
exaCopyDirty (migrate=
exaCopyDirtyToSys (migrate=
exaPrepareAcce