$ valgrind glretrace shared_context_buffer_unmap.trace
==4958== Memcheck, a memory error detector
==4958== Copyright (C) 2002-2015, and GNU GPL'd, by Julian Seward et al.
==4958== Using Valgrind-3.11.0 and LibVEX; rerun with -h for copyright info
==4958== Command: glretrace shared_context_buffer_unmap.trace
==4958== 
==4958== Invalid read of size 8
==4958==    at 0xE6477C0: u_transfer_unmap_vtbl (u_transfer.c:154)
==4958==    by 0xE44C275: pipe_buffer_unmap (u_inlines.h:308)
==4958==    by 0xE44C275: st_bufferobj_unmap (st_cb_bufferobjects.c:484)
==4958==    by 0xE309C67: _mesa_buffer_unmap_all_mappings (bufferobj.c:1249)
==4958==    by 0xE309C67: _mesa_DeleteBuffers (bufferobj.c:1304)
==4958==    by 0x573BA3: retrace_glDeleteBuffers(trace::Call&) (glretrace_gl.cpp:16503)
==4958==    by 0x413DDB: retrace::retraceCall(trace::Call*) (retrace_main.cpp:240)
==4958==    by 0x414543: runLeg (retrace_main.cpp:393)
==4958==    by 0x414543: runRace (retrace_main.cpp:371)
==4958==    by 0x414543: retrace::RelayRace::run() (retrace_main.cpp:512)
==4958==    by 0x40F644: mainLoop (retrace_main.cpp:572)
==4958==    by 0x40F644: main (retrace_main.cpp:958)
==4958==  Address 0x18738cc8 is 24 bytes inside a block of size 4,624 free'd
==4958==    at 0x4C2CD5A: free (vg_replace_malloc.c:530)
==4958==    by 0xE54331C: slab_destroy (slab.c:158)
==4958==    by 0xE9B45A6: r600_common_context_cleanup (r600_pipe_common.c:535)
==4958==    by 0xE8F6629: si_destroy_context (si_pipe.c:90)
==4958==    by 0xE45F8B7: st_destroy_context (st_context.c:608)
==4958==    by 0xE59D56C: dri_destroy_context (dri_context.c:188)
==4958==    by 0xE59C7C2: driDestroyContext (dri_util.c:500)
==4958==    by 0xB0BA9DE: dri3_destroy_context (dri3_glx.c:189)
==4958==    by 0xB092CC8: glXDestroyContext (glxcmds.c:474)
==4958==    by 0x413923: ~GlxContext (glws_glx.cpp:171)
==4958==    by 0x413923: glws::GlxContext::~GlxContext() (glws_glx.cpp:172)
==4958==    by 0x5BF1B7: release (glretrace.hpp:61)
==4958==    by 0x5BF1B7: retrace_glXDestroyContext(trace::Call&) (glretrace_glx.cpp:126)
==4958==    by 0x413DDB: retrace::retraceCall(trace::Call*) (retrace_main.cpp:240)
==4958==  Block was alloc'd at
==4958==    at 0x4C2BBAD: malloc (vg_replace_malloc.c:299)
==4958==    by 0xE5431E9: slab_add_new_page (slab.c:68)
==4958==    by 0xE5431E9: slab_alloc_st (slab.c:102)
==4958==    by 0xE9B1494: r600_buffer_get_transfer (r600_buffer_common.c:286)
==4958==    by 0xE9B1494: r600_buffer_transfer_map (r600_buffer_common.c:415)
==4958==    by 0xE44C13A: pipe_buffer_map_range (u_inlines.h:280)
==4958==    by 0xE44C13A: st_bufferobj_map_range (st_cb_bufferobjects.c:431)
==4958==    by 0xE308538: _mesa_map_buffer_range (bufferobj.c:2527)
==4958==    by 0xE308EB1: _mesa_MapBuffer (bufferobj.c:2660)
==4958==    by 0x4AFB7A: retrace_glMapBuffer(trace::Call&) (glretrace_gl.cpp:16659)
==4958==    by 0x413DDB: retrace::retraceCall(trace::Call*) (retrace_main.cpp:240)
==4958==    by 0x414543: runLeg (retrace_main.cpp:393)
==4958==    by 0x414543: runRace (retrace_main.cpp:371)
==4958==    by 0x414543: retrace::RelayRace::run() (retrace_main.cpp:512)
==4958==    by 0x40F644: mainLoop (retrace_main.cpp:572)
==4958==    by 0x40F644: main (retrace_main.cpp:958)
==4958== 
==4958== Invalid read of size 4
==4958==    at 0xE9B10CC: r600_buffer_transfer_unmap (r600_buffer_common.c:464)
==4958==    by 0xE44C275: pipe_buffer_unmap (u_inlines.h:308)
==4958==    by 0xE44C275: st_bufferobj_unmap (st_cb_bufferobjects.c:484)
==4958==    by 0xE309C67: _mesa_buffer_unmap_all_mappings (bufferobj.c:1249)
==4958==    by 0xE309C67: _mesa_DeleteBuffers (bufferobj.c:1304)
==4958==    by 0x573BA3: retrace_glDeleteBuffers(trace::Call&) (glretrace_gl.cpp:16503)
==4958==    by 0x413DDB: retrace::retraceCall(trace::Call*) (retrace_main.cpp:240)
==4958==    by 0x414543: runLeg (retrace_main.cpp:393)
==4958==    by 0x414543: runRace (retrace_main.cpp:371)
==4958==    by 0x414543: retrace::RelayRace::run() (retrace_main.cpp:512)
==4958==    by 0x40F644: mainLoop (retrace_main.cpp:572)
==4958==    by 0x40F644: main (retrace_main.cpp:958)
==4958==  Address 0x18738cd4 is 36 bytes inside a block of size 4,624 free'd
==4958==    at 0x4C2CD5A: free (vg_replace_malloc.c:530)
==4958==    by 0xE54331C: slab_destroy (slab.c:158)
==4958==    by 0xE9B45A6: r600_common_context_cleanup (r600_pipe_common.c:535)
==4958==    by 0xE8F6629: si_destroy_context (si_pipe.c:90)
==4958==    by 0xE45F8B7: st_destroy_context (st_context.c:608)
==4958==    by 0xE59D56C: dri_destroy_context (dri_context.c:188)
==4958==    by 0xE59C7C2: driDestroyContext (dri_util.c:500)
==4958==    by 0xB0BA9DE: dri3_destroy_context (dri3_glx.c:189)
==4958==    by 0xB092CC8: glXDestroyContext (glxcmds.c:474)
==4958==    by 0x413923: ~GlxContext (glws_glx.cpp:171)
==4958==    by 0x413923: glws::GlxContext::~GlxContext() (glws_glx.cpp:172)
==4958==    by 0x5BF1B7: release (glretrace.hpp:61)
==4958==    by 0x5BF1B7: retrace_glXDestroyContext(trace::Call&) (glretrace_glx.cpp:126)
==4958==    by 0x413DDB: retrace::retraceCall(trace::Call*) (retrace_main.cpp:240)
==4958==  Block was alloc'd at
==4958==    at 0x4C2BBAD: malloc (vg_replace_malloc.c:299)
==4958==    by 0xE5431E9: slab_add_new_page (slab.c:68)
==4958==    by 0xE5431E9: slab_alloc_st (slab.c:102)
==4958==    by 0xE9B1494: r600_buffer_get_transfer (r600_buffer_common.c:286)
==4958==    by 0xE9B1494: r600_buffer_transfer_map (r600_buffer_common.c:415)
==4958==    by 0xE44C13A: pipe_buffer_map_range (u_inlines.h:280)
==4958==    by 0xE44C13A: st_bufferobj_map_range (st_cb_bufferobjects.c:431)
==4958==    by 0xE308538: _mesa_map_buffer_range (bufferobj.c:2527)
==4958==    by 0xE308EB1: _mesa_MapBuffer (bufferobj.c:2660)
==4958==    by 0x4AFB7A: retrace_glMapBuffer(trace::Call&) (glretrace_gl.cpp:16659)
==4958==    by 0x413DDB: retrace::retraceCall(trace::Call*) (retrace_main.cpp:240)
==4958==    by 0x414543: runLeg (retrace_main.cpp:393)
==4958==    by 0x414543: runRace (retrace_main.cpp:371)
==4958==    by 0x414543: retrace::RelayRace::run() (retrace_main.cpp:512)
==4958==    by 0x40F644: mainLoop (retrace_main.cpp:572)
==4958==    by 0x40F644: main (retrace_main.cpp:958)
==4958== 
==4958== Invalid read of size 8
==4958==    at 0xE9B0F63: r600_buffer_do_flush_region.isra.5 (r600_buffer_common.c:426)
==4958==    by 0xE9B1124: r600_buffer_transfer_unmap (r600_buffer_common.c:466)
==4958==    by 0xE44C275: pipe_buffer_unmap (u_inlines.h:308)
==4958==    by 0xE44C275: st_bufferobj_unmap (st_cb_bufferobjects.c:484)
==4958==    by 0xE309C67: _mesa_buffer_unmap_all_mappings (bufferobj.c:1249)
==4958==    by 0xE309C67: _mesa_DeleteBuffers (bufferobj.c:1304)
==4958==    by 0x573BA3: retrace_glDeleteBuffers(trace::Call&) (glretrace_gl.cpp:16503)
==4958==    by 0x413DDB: retrace::retraceCall(trace::Call*) (retrace_main.cpp:240)
==4958==    by 0x414543: runLeg (retrace_main.cpp:393)
==4958==    by 0x414543: runRace (retrace_main.cpp:371)
==4958==    by 0x414543: retrace::RelayRace::run() (retrace_main.cpp:512)
==4958==    by 0x40F644: mainLoop (retrace_main.cpp:572)
==4958==    by 0x40F644: main (retrace_main.cpp:958)
==4958==  Address 0x18738cf8 is 72 bytes inside a block of size 4,624 free'd
==4958==    at 0x4C2CD5A: free (vg_replace_malloc.c:530)
==4958==    by 0xE54331C: slab_destroy (slab.c:158)
==4958==    by 0xE9B45A6: r600_common_context_cleanup (r600_pipe_common.c:535)
==4958==    by 0xE8F6629: si_destroy_context (si_pipe.c:90)
==4958==    by 0xE45F8B7: st_destroy_context (st_context.c:608)
==4958==    by 0xE59D56C: dri_destroy_context (dri_context.c:188)
==4958==    by 0xE59C7C2: driDestroyContext (dri_util.c:500)
==4958==    by 0xB0BA9DE: dri3_destroy_context (dri3_glx.c:189)
==4958==    by 0xB092CC8: glXDestroyContext (glxcmds.c:474)
==4958==    by 0x413923: ~GlxContext (glws_glx.cpp:171)
==4958==    by 0x413923: glws::GlxContext::~GlxContext() (glws_glx.cpp:172)
==4958==    by 0x5BF1B7: release (glretrace.hpp:61)
==4958==    by 0x5BF1B7: retrace_glXDestroyContext(trace::Call&) (glretrace_glx.cpp:126)
==4958==    by 0x413DDB: retrace::retraceCall(trace::Call*) (retrace_main.cpp:240)
==4958==  Block was alloc'd at
==4958==    at 0x4C2BBAD: malloc (vg_replace_malloc.c:299)
==4958==    by 0xE5431E9: slab_add_new_page (slab.c:68)
==4958==    by 0xE5431E9: slab_alloc_st (slab.c:102)
==4958==    by 0xE9B1494: r600_buffer_get_transfer (r600_buffer_common.c:286)
==4958==    by 0xE9B1494: r600_buffer_transfer_map (r600_buffer_common.c:415)
==4958==    by 0xE44C13A: pipe_buffer_map_range (u_inlines.h:280)
==4958==    by 0xE44C13A: st_bufferobj_map_range (st_cb_bufferobjects.c:431)
==4958==    by 0xE308538: _mesa_map_buffer_range (bufferobj.c:2527)
==4958==    by 0xE308EB1: _mesa_MapBuffer (bufferobj.c:2660)
==4958==    by 0x4AFB7A: retrace_glMapBuffer(trace::Call&) (glretrace_gl.cpp:16659)
==4958==    by 0x413DDB: retrace::retraceCall(trace::Call*) (retrace_main.cpp:240)
==4958==    by 0x414543: runLeg (retrace_main.cpp:393)
==4958==    by 0x414543: runRace (retrace_main.cpp:371)
==4958==    by 0x414543: retrace::RelayRace::run() (retrace_main.cpp:512)
==4958==    by 0x40F644: mainLoop (retrace_main.cpp:572)
==4958==    by 0x40F644: main (retrace_main.cpp:958)
==4958== 
==4958== Invalid read of size 8
==4958==    at 0xE9B0F67: r600_buffer_do_flush_region.isra.5 (r600_buffer_common.c:424)
==4958==    by 0xE9B1124: r600_buffer_transfer_unmap (r600_buffer_common.c:466)
==4958==    by 0xE44C275: pipe_buffer_unmap (u_inlines.h:308)
==4958==    by 0xE44C275: st_bufferobj_unmap (st_cb_bufferobjects.c:484)
==4958==    by 0xE309C67: _mesa_buffer_unmap_all_mappings (bufferobj.c:1249)
==4958==    by 0xE309C67: _mesa_DeleteBuffers (bufferobj.c:1304)
==4958==    by 0x573BA3: retrace_glDeleteBuffers(trace::Call&) (glretrace_gl.cpp:16503)
==4958==    by 0x413DDB: retrace::retraceCall(trace::Call*) (retrace_main.cpp:240)
==4958==    by 0x414543: runLeg (retrace_main.cpp:393)
==4958==    by 0x414543: runRace (retrace_main.cpp:371)
==4958==    by 0x414543: retrace::RelayRace::run() (retrace_main.cpp:512)
==4958==    by 0x40F644: mainLoop (retrace_main.cpp:572)
==4958==    by 0x40F644: main (retrace_main.cpp:958)
==4958==  Address 0x18738cc8 is 24 bytes inside a block of size 4,624 free'd
==4958==    at 0x4C2CD5A: free (vg_replace_malloc.c:530)
==4958==    by 0xE54331C: slab_destroy (slab.c:158)
==4958==    by 0xE9B45A6: r600_common_context_cleanup (r600_pipe_common.c:535)
==4958==    by 0xE8F6629: si_destroy_context (si_pipe.c:90)
==4958==    by 0xE45F8B7: st_destroy_context (st_context.c:608)
==4958==    by 0xE59D56C: dri_destroy_context (dri_context.c:188)
==4958==    by 0xE59C7C2: driDestroyContext (dri_util.c:500)
==4958==    by 0xB0BA9DE: dri3_destroy_context (dri3_glx.c:189)
==4958==    by 0xB092CC8: glXDestroyContext (glxcmds.c:474)
==4958==    by 0x413923: ~GlxContext (glws_glx.cpp:171)
==4958==    by 0x413923: glws::GlxContext::~GlxContext() (glws_glx.cpp:172)
==4958==    by 0x5BF1B7: release (glretrace.hpp:61)
==4958==    by 0x5BF1B7: retrace_glXDestroyContext(trace::Call&) (glretrace_glx.cpp:126)
==4958==    by 0x413DDB: retrace::retraceCall(trace::Call*) (retrace_main.cpp:240)
==4958==  Block was alloc'd at
==4958==    at 0x4C2BBAD: malloc (vg_replace_malloc.c:299)
==4958==    by 0xE5431E9: slab_add_new_page (slab.c:68)
==4958==    by 0xE5431E9: slab_alloc_st (slab.c:102)
==4958==    by 0xE9B1494: r600_buffer_get_transfer (r600_buffer_common.c:286)
==4958==    by 0xE9B1494: r600_buffer_transfer_map (r600_buffer_common.c:415)
==4958==    by 0xE44C13A: pipe_buffer_map_range (u_inlines.h:280)
==4958==    by 0xE44C13A: st_bufferobj_map_range (st_cb_bufferobjects.c:431)
==4958==    by 0xE308538: _mesa_map_buffer_range (bufferobj.c:2527)
==4958==    by 0xE308EB1: _mesa_MapBuffer (bufferobj.c:2660)
==4958==    by 0x4AFB7A: retrace_glMapBuffer(trace::Call&) (glretrace_gl.cpp:16659)
==4958==    by 0x413DDB: retrace::retraceCall(trace::Call*) (retrace_main.cpp:240)
==4958==    by 0x414543: runLeg (retrace_main.cpp:393)
==4958==    by 0x414543: runRace (retrace_main.cpp:371)
==4958==    by 0x414543: retrace::RelayRace::run() (retrace_main.cpp:512)
==4958==    by 0x40F644: mainLoop (retrace_main.cpp:572)
==4958==    by 0x40F644: main (retrace_main.cpp:958)
==4958== 
==4958== Invalid read of size 4
==4958==    at 0xE9B0FD7: r600_buffer_do_flush_region.isra.5 (r600_buffer_common.c:442)
==4958==    by 0xE9B1124: r600_buffer_transfer_unmap (r600_buffer_common.c:466)
==4958==    by 0xE44C275: pipe_buffer_unmap (u_inlines.h:308)
==4958==    by 0xE44C275: st_bufferobj_unmap (st_cb_bufferobjects.c:484)
==4958==    by 0xE309C67: _mesa_buffer_unmap_all_mappings (bufferobj.c:1249)
==4958==    by 0xE309C67: _mesa_DeleteBuffers (bufferobj.c:1304)
==4958==    by 0x573BA3: retrace_glDeleteBuffers(trace::Call&) (glretrace_gl.cpp:16503)
==4958==    by 0x413DDB: retrace::retraceCall(trace::Call*) (retrace_main.cpp:240)
==4958==    by 0x414543: runLeg (retrace_main.cpp:393)
==4958==    by 0x414543: runRace (retrace_main.cpp:371)
==4958==    by 0x414543: retrace::RelayRace::run() (retrace_main.cpp:512)
==4958==    by 0x40F644: mainLoop (retrace_main.cpp:572)
==4958==    by 0x40F644: main (retrace_main.cpp:958)
==4958==  Address 0x18738cd8 is 40 bytes inside a block of size 4,624 free'd
==4958==    at 0x4C2CD5A: free (vg_replace_malloc.c:530)
==4958==    by 0xE54331C: slab_destroy (slab.c:158)
==4958==    by 0xE9B45A6: r600_common_context_cleanup (r600_pipe_common.c:535)
==4958==    by 0xE8F6629: si_destroy_context (si_pipe.c:90)
==4958==    by 0xE45F8B7: st_destroy_context (st_context.c:608)
==4958==    by 0xE59D56C: dri_destroy_context (dri_context.c:188)
==4958==    by 0xE59C7C2: driDestroyContext (dri_util.c:500)
==4958==    by 0xB0BA9DE: dri3_destroy_context (dri3_glx.c:189)
==4958==    by 0xB092CC8: glXDestroyContext (glxcmds.c:474)
==4958==    by 0x413923: ~GlxContext (glws_glx.cpp:171)
==4958==    by 0x413923: glws::GlxContext::~GlxContext() (glws_glx.cpp:172)
==4958==    by 0x5BF1B7: release (glretrace.hpp:61)
==4958==    by 0x5BF1B7: retrace_glXDestroyContext(trace::Call&) (glretrace_glx.cpp:126)
==4958==    by 0x413DDB: retrace::retraceCall(trace::Call*) (retrace_main.cpp:240)
==4958==  Block was alloc'd at
==4958==    at 0x4C2BBAD: malloc (vg_replace_malloc.c:299)
==4958==    by 0xE5431E9: slab_add_new_page (slab.c:68)
==4958==    by 0xE5431E9: slab_alloc_st (slab.c:102)
==4958==    by 0xE9B1494: r600_buffer_get_transfer (r600_buffer_common.c:286)
==4958==    by 0xE9B1494: r600_buffer_transfer_map (r600_buffer_common.c:415)
==4958==    by 0xE44C13A: pipe_buffer_map_range (u_inlines.h:280)
==4958==    by 0xE44C13A: st_bufferobj_map_range (st_cb_bufferobjects.c:431)
==4958==    by 0xE308538: _mesa_map_buffer_range (bufferobj.c:2527)
==4958==    by 0xE308EB1: _mesa_MapBuffer (bufferobj.c:2660)
==4958==    by 0x4AFB7A: retrace_glMapBuffer(trace::Call&) (glretrace_gl.cpp:16659)
==4958==    by 0x413DDB: retrace::retraceCall(trace::Call*) (retrace_main.cpp:240)
==4958==    by 0x414543: runLeg (retrace_main.cpp:393)
==4958==    by 0x414543: runRace (retrace_main.cpp:371)
==4958==    by 0x414543: retrace::RelayRace::run() (retrace_main.cpp:512)
==4958==    by 0x40F644: mainLoop (retrace_main.cpp:572)
==4958==    by 0x40F644: main (retrace_main.cpp:958)
==4958== 
==4958== Invalid read of size 4
==4958==    at 0xE9B0FDA: r600_buffer_do_flush_region.isra.5 (r600_buffer_common.c:442)
==4958==    by 0xE9B1124: r600_buffer_transfer_unmap (r600_buffer_common.c:466)
==4958==    by 0xE44C275: pipe_buffer_unmap (u_inlines.h:308)
==4958==    by 0xE44C275: st_bufferobj_unmap (st_cb_bufferobjects.c:484)
==4958==    by 0xE309C67: _mesa_buffer_unmap_all_mappings (bufferobj.c:1249)
==4958==    by 0xE309C67: _mesa_DeleteBuffers (bufferobj.c:1304)
==4958==    by 0x573BA3: retrace_glDeleteBuffers(trace::Call&) (glretrace_gl.cpp:16503)
==4958==    by 0x413DDB: retrace::retraceCall(trace::Call*) (retrace_main.cpp:240)
==4958==    by 0x414543: runLeg (retrace_main.cpp:393)
==4958==    by 0x414543: runRace (retrace_main.cpp:371)
==4958==    by 0x414543: retrace::RelayRace::run() (retrace_main.cpp:512)
==4958==    by 0x40F644: mainLoop (retrace_main.cpp:572)
==4958==    by 0x40F644: main (retrace_main.cpp:958)
==4958==  Address 0x18738ce4 is 52 bytes inside a block of size 4,624 free'd
==4958==    at 0x4C2CD5A: free (vg_replace_malloc.c:530)
==4958==    by 0xE54331C: slab_destroy (slab.c:158)
==4958==    by 0xE9B45A6: r600_common_context_cleanup (r600_pipe_common.c:535)
==4958==    by 0xE8F6629: si_destroy_context (si_pipe.c:90)
==4958==    by 0xE45F8B7: st_destroy_context (st_context.c:608)
==4958==    by 0xE59D56C: dri_destroy_context (dri_context.c:188)
==4958==    by 0xE59C7C2: driDestroyContext (dri_util.c:500)
==4958==    by 0xB0BA9DE: dri3_destroy_context (dri3_glx.c:189)
==4958==    by 0xB092CC8: glXDestroyContext (glxcmds.c:474)
==4958==    by 0x413923: ~GlxContext (glws_glx.cpp:171)
==4958==    by 0x413923: glws::GlxContext::~GlxContext() (glws_glx.cpp:172)
==4958==    by 0x5BF1B7: release (glretrace.hpp:61)
==4958==    by 0x5BF1B7: retrace_glXDestroyContext(trace::Call&) (glretrace_glx.cpp:126)
==4958==    by 0x413DDB: retrace::retraceCall(trace::Call*) (retrace_main.cpp:240)
==4958==  Block was alloc'd at
==4958==    at 0x4C2BBAD: malloc (vg_replace_malloc.c:299)
==4958==    by 0xE5431E9: slab_add_new_page (slab.c:68)
==4958==    by 0xE5431E9: slab_alloc_st (slab.c:102)
==4958==    by 0xE9B1494: r600_buffer_get_transfer (r600_buffer_common.c:286)
==4958==    by 0xE9B1494: r600_buffer_transfer_map (r600_buffer_common.c:415)
==4958==    by 0xE44C13A: pipe_buffer_map_range (u_inlines.h:280)
==4958==    by 0xE44C13A: st_bufferobj_map_range (st_cb_bufferobjects.c:431)
==4958==    by 0xE308538: _mesa_map_buffer_range (bufferobj.c:2527)
==4958==    by 0xE308EB1: _mesa_MapBuffer (bufferobj.c:2660)
==4958==    by 0x4AFB7A: retrace_glMapBuffer(trace::Call&) (glretrace_gl.cpp:16659)
==4958==    by 0x413DDB: retrace::retraceCall(trace::Call*) (retrace_main.cpp:240)
==4958==    by 0x414543: runLeg (retrace_main.cpp:393)
==4958==    by 0x414543: runRace (retrace_main.cpp:371)
==4958==    by 0x414543: retrace::RelayRace::run() (retrace_main.cpp:512)
==4958==    by 0x40F644: mainLoop (retrace_main.cpp:572)
==4958==    by 0x40F644: main (retrace_main.cpp:958)
==4958== 
==4958== Invalid read of size 8
==4958==    at 0xE9B10D9: r600_buffer_transfer_unmap (r600_buffer_common.c:468)
==4958==    by 0xE44C275: pipe_buffer_unmap (u_inlines.h:308)
==4958==    by 0xE44C275: st_bufferobj_unmap (st_cb_bufferobjects.c:484)
==4958==    by 0xE309C67: _mesa_buffer_unmap_all_mappings (bufferobj.c:1249)
==4958==    by 0xE309C67: _mesa_DeleteBuffers (bufferobj.c:1304)
==4958==    by 0x573BA3: retrace_glDeleteBuffers(trace::Call&) (glretrace_gl.cpp:16503)
==4958==    by 0x413DDB: retrace::retraceCall(trace::Call*) (retrace_main.cpp:240)
==4958==    by 0x414543: runLeg (retrace_main.cpp:393)
==4958==    by 0x414543: runRace (retrace_main.cpp:371)
==4958==    by 0x414543: retrace::RelayRace::run() (retrace_main.cpp:512)
==4958==    by 0x40F644: mainLoop (retrace_main.cpp:572)
==4958==    by 0x40F644: main (retrace_main.cpp:958)
==4958==  Address 0x18738cf8 is 72 bytes inside a block of size 4,624 free'd
==4958==    at 0x4C2CD5A: free (vg_replace_malloc.c:530)
==4958==    by 0xE54331C: slab_destroy (slab.c:158)
==4958==    by 0xE9B45A6: r600_common_context_cleanup (r600_pipe_common.c:535)
==4958==    by 0xE8F6629: si_destroy_context (si_pipe.c:90)
==4958==    by 0xE45F8B7: st_destroy_context (st_context.c:608)
==4958==    by 0xE59D56C: dri_destroy_context (dri_context.c:188)
==4958==    by 0xE59C7C2: driDestroyContext (dri_util.c:500)
==4958==    by 0xB0BA9DE: dri3_destroy_context (dri3_glx.c:189)
==4958==    by 0xB092CC8: glXDestroyContext (glxcmds.c:474)
==4958==    by 0x413923: ~GlxContext (glws_glx.cpp:171)
==4958==    by 0x413923: glws::GlxContext::~GlxContext() (glws_glx.cpp:172)
==4958==    by 0x5BF1B7: release (glretrace.hpp:61)
==4958==    by 0x5BF1B7: retrace_glXDestroyContext(trace::Call&) (glretrace_glx.cpp:126)
==4958==    by 0x413DDB: retrace::retraceCall(trace::Call*) (retrace_main.cpp:240)
==4958==  Block was alloc'd at
==4958==    at 0x4C2BBAD: malloc (vg_replace_malloc.c:299)
==4958==    by 0xE5431E9: slab_add_new_page (slab.c:68)
==4958==    by 0xE5431E9: slab_alloc_st (slab.c:102)
==4958==    by 0xE9B1494: r600_buffer_get_transfer (r600_buffer_common.c:286)
==4958==    by 0xE9B1494: r600_buffer_transfer_map (r600_buffer_common.c:415)
==4958==    by 0xE44C13A: pipe_buffer_map_range (u_inlines.h:280)
==4958==    by 0xE44C13A: st_bufferobj_map_range (st_cb_bufferobjects.c:431)
==4958==    by 0xE308538: _mesa_map_buffer_range (bufferobj.c:2527)
==4958==    by 0xE308EB1: _mesa_MapBuffer (bufferobj.c:2660)
==4958==    by 0x4AFB7A: retrace_glMapBuffer(trace::Call&) (glretrace_gl.cpp:16659)
==4958==    by 0x413DDB: retrace::retraceCall(trace::Call*) (retrace_main.cpp:240)
==4958==    by 0x414543: runLeg (retrace_main.cpp:393)
==4958==    by 0x414543: runRace (retrace_main.cpp:371)
==4958==    by 0x414543: retrace::RelayRace::run() (retrace_main.cpp:512)
==4958==    by 0x40F644: mainLoop (retrace_main.cpp:572)
==4958==    by 0x40F644: main (retrace_main.cpp:958)
==4958== 
==4958== Invalid write of size 8
==4958==    at 0xE543278: slab_free_st (slab.c:121)
==4958==    by 0xE44C275: pipe_buffer_unmap (u_inlines.h:308)
==4958==    by 0xE44C275: st_bufferobj_unmap (st_cb_bufferobjects.c:484)
==4958==    by 0xE309C67: _mesa_buffer_unmap_all_mappings (bufferobj.c:1249)
==4958==    by 0xE309C67: _mesa_DeleteBuffers (bufferobj.c:1304)
==4958==    by 0x573BA3: retrace_glDeleteBuffers(trace::Call&) (glretrace_gl.cpp:16503)
==4958==    by 0x413DDB: retrace::retraceCall(trace::Call*) (retrace_main.cpp:240)
==4958==    by 0x414543: runLeg (retrace_main.cpp:393)
==4958==    by 0x414543: runRace (retrace_main.cpp:371)
==4958==    by 0x414543: retrace::RelayRace::run() (retrace_main.cpp:512)
==4958==    by 0x40F644: mainLoop (retrace_main.cpp:572)
==4958==    by 0x40F644: main (retrace_main.cpp:958)
==4958==  Address 0x18738cc0 is 16 bytes inside a block of size 4,624 free'd
==4958==    at 0x4C2CD5A: free (vg_replace_malloc.c:530)
==4958==    by 0xE54331C: slab_destroy (slab.c:158)
==4958==    by 0xE9B45A6: r600_common_context_cleanup (r600_pipe_common.c:535)
==4958==    by 0xE8F6629: si_destroy_context (si_pipe.c:90)
==4958==    by 0xE45F8B7: st_destroy_context (st_context.c:608)
==4958==    by 0xE59D56C: dri_destroy_context (dri_context.c:188)
==4958==    by 0xE59C7C2: driDestroyContext (dri_util.c:500)
==4958==    by 0xB0BA9DE: dri3_destroy_context (dri3_glx.c:189)
==4958==    by 0xB092CC8: glXDestroyContext (glxcmds.c:474)
==4958==    by 0x413923: ~GlxContext (glws_glx.cpp:171)
==4958==    by 0x413923: glws::GlxContext::~GlxContext() (glws_glx.cpp:172)
==4958==    by 0x5BF1B7: release (glretrace.hpp:61)
==4958==    by 0x5BF1B7: retrace_glXDestroyContext(trace::Call&) (glretrace_glx.cpp:126)
==4958==    by 0x413DDB: retrace::retraceCall(trace::Call*) (retrace_main.cpp:240)
==4958==  Block was alloc'd at
==4958==    at 0x4C2BBAD: malloc (vg_replace_malloc.c:299)
==4958==    by 0xE5431E9: slab_add_new_page (slab.c:68)
==4958==    by 0xE5431E9: slab_alloc_st (slab.c:102)
==4958==    by 0xE9B1494: r600_buffer_get_transfer (r600_buffer_common.c:286)
==4958==    by 0xE9B1494: r600_buffer_transfer_map (r600_buffer_common.c:415)
==4958==    by 0xE44C13A: pipe_buffer_map_range (u_inlines.h:280)
==4958==    by 0xE44C13A: st_bufferobj_map_range (st_cb_bufferobjects.c:431)
==4958==    by 0xE308538: _mesa_map_buffer_range (bufferobj.c:2527)
==4958==    by 0xE308EB1: _mesa_MapBuffer (bufferobj.c:2660)
==4958==    by 0x4AFB7A: retrace_glMapBuffer(trace::Call&) (glretrace_gl.cpp:16659)
==4958==    by 0x413DDB: retrace::retraceCall(trace::Call*) (retrace_main.cpp:240)
==4958==    by 0x414543: runLeg (retrace_main.cpp:393)
==4958==    by 0x414543: runRace (retrace_main.cpp:371)
==4958==    by 0x414543: retrace::RelayRace::run() (retrace_main.cpp:512)
==4958==    by 0x40F644: mainLoop (retrace_main.cpp:572)
==4958==    by 0x40F644: main (retrace_main.cpp:958)
==4958== 
Rendered 0 frames in 0.504907 secs, average of 0 fps
==4958== 
==4958== HEAP SUMMARY:
==4958==     in use at exit: 2,687,060 bytes in 5,385 blocks
==4958==   total heap usage: 22,479 allocs, 17,094 frees, 8,456,550 bytes allocated
==4958== 
==4958== LEAK SUMMARY:
==4958==    definitely lost: 4,880 bytes in 2 blocks
==4958==    indirectly lost: 0 bytes in 0 blocks
==4958==      possibly lost: 775,986 bytes in 863 blocks
==4958==    still reachable: 1,906,194 bytes in 4,520 blocks
==4958==         suppressed: 0 bytes in 0 blocks
==4958== Rerun with --leak-check=full to see details of leaked memory
==4958== 
==4958== For counts of detected and suppressed errors, rerun with: -v
==4958== ERROR SUMMARY: 8 errors from 8 contexts (suppressed: 0 from 0)

$LIBGL_ALWAYS_SOFTWARE=1 valgrind glretrace shared_context_buffer_unmap.trace
==5163== Memcheck, a memory error detector
==5163== Copyright (C) 2002-2015, and GNU GPL'd, by Julian Seward et al.
==5163== Using Valgrind-3.11.0 and LibVEX; rerun with -h for copyright info
==5163== Command: glretrace shared_context_buffer_unmap.trace
==5163== 
Rendered 0 frames in 0.657091 secs, average of 0 fps
==5163== 
==5163== HEAP SUMMARY:
==5163==     in use at exit: 3,773,341 bytes in 4,485 blocks
==5163==   total heap usage: 24,222 allocs, 19,737 frees, 47,054,104 bytes allocated
==5163== 
==5163== LEAK SUMMARY:
==5163==    definitely lost: 2,112 bytes in 4 blocks
==5163==    indirectly lost: 1,581,691 bytes in 950 blocks
==5163==      possibly lost: 19,772 bytes in 48 blocks
==5163==    still reachable: 2,169,766 bytes in 3,483 blocks
==5163==         suppressed: 0 bytes in 0 blocks
==5163== Rerun with --leak-check=full to see details of leaked memory
==5163== 
==5163== For counts of detected and suppressed errors, rerun with: -v
==5163== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)