$ LD_LIBRARY_PATH=$PWD/10.2.1/lib valgrind glxtest/glxtest 
==12748== Memcheck, a memory error detector
==12748== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al.
==12748== Using Valgrind-3.9.0 and LibVEX; rerun with -h for copyright info
==12748== Command: glxtest/glxtest
==12748== 
==12748== Warning: client switching stacks?  SP change: 0xbebe4600 --> 0x4022f9c
==12748==          to suppress, use: --max-stackframe=1162078620 or greater
==12748== Warning: client switching stacks?  SP change: 0x4022f9c --> 0xbebe4600
==12748==          to suppress, use: --max-stackframe=1162078620 or greater
==12748== Use of uninitialised value of size 4
==12748==    at 0x4D33143: cso_hash_find (cso_hash.c:210)
==12748==    by 0x4D8F4BC: util_hash_table_remove (u_hash_table.c:109)
==12748==    by 0x4A54FB3: nouveau_drm_screen_unref (nouveau_drm_winsys.c:29)
==12748==    by 0x4A6A04A: nv30_screen_destroy (nv30_screen.c:313)
==12748==    by 0x4A52678: dri_destroy_screen_helper (dri_screen.c:378)
==12748==    by 0x4A5271D: dri_destroy_screen (dri_screen.c:388)
==12748==    by 0x4A4EFA5: driDestroyScreen (dri_util.c:235)
==12748==    by 0x49518DC: dri2DestroyScreen (dri2_glx.c:710)
==12748==    by 0x492AD48: FreeScreenConfigs.isra.3 (glxext.c:208)
==12748==    by 0x492ADD1: glx_display_free (glxext.c:231)
==12748==    by 0x492AF22: __glXCloseDisplay (glxext.c:277)
==12748==    by 0x40843E0: XCloseDisplay (in /usr/lib/libX11.so.6.3.0)
==12748== 
==12748== Invalid read of size 4
==12748==    at 0x4A6B2A5: nv30_context_kick_notify (nv30_context.c:45)
==12748==    by 0x6EFAE5B: ??? (in /usr/lib/libdrm_nouveau.so.2.0.0)
==12748==    by 0x6EFB149: ??? (in /usr/lib/libdrm_nouveau.so.2.0.0)
==12748==    by 0x6EFBEB9: nouveau_pushbuf_kick (in /usr/lib/libdrm_nouveau.so.2.0.0)
==12748==    by 0x4A6270E: nouveau_fence_wait (nouveau_fence.c:196)
==12748==    by 0x4A6A06C: nv30_screen_destroy (nv30_screen.c:323)
==12748==    by 0x4A52678: dri_destroy_screen_helper (dri_screen.c:378)
==12748==    by 0x4A5271D: dri_destroy_screen (dri_screen.c:388)
==12748==    by 0x4A4EFA5: driDestroyScreen (dri_util.c:235)
==12748==    by 0x49518DC: dri2DestroyScreen (dri2_glx.c:710)
==12748==    by 0x492AD48: FreeScreenConfigs.isra.3 (glxext.c:208)
==12748==    by 0x492ADD1: glx_display_free (glxext.c:231)
==12748==  Address 0x46be9f8 is 408 bytes inside a block of size 1,724 free'd
==12748==    at 0x402B038: free (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so)
==12748==    by 0x4A6B261: nv30_context_destroy (nouveau_context.h:94)
==12748==    by 0x4C6CDE4: st_destroy_context (st_context.c:339)
==12748==    by 0x4C87D57: st_context_destroy (st_manager.c:619)
==12748==    by 0x4A52113: dri_destroy_context (dri_context.c:192)
==12748==    by 0x4A4EB93: driDestroyContext (dri_util.c:487)
==12748==    by 0x4951C06: dri2_destroy_context (dri2_glx.c:129)
==12748==    by 0x4927D80: glXDestroyContext (glxcmds.c:473)
==12748==    by 0x8048D06: glxtest() (in glxtest/glxtest)
==12748==    by 0x8048D84: main (in glxtest/glxtest)
==12748== 
nouveau: kernel rejected pushbuf: Bad file descriptor
nouveau: ch0: krec 0 pushes 1 bufs 1 relocs 0
nouveau: ch0: buf 00000000 00000002 00000004 00000004 00000000
nouveau: ch0: psh 00000000 000000012c 0000000140
nouveau:        0x0008fd6c
nouveau:        0x00000000
nouveau:        0x00000003
nouveau:        0x00020000
nouveau:        0x00000000
^C==12748== 
==12748== HEAP SUMMARY:
==12748==     in use at exit: 219,761 bytes in 573 blocks
==12748==   total heap usage: 5,544 allocs, 4,971 frees, 2,298,146 bytes allocated
==12748== 
==12748== LEAK SUMMARY:
==12748==    definitely lost: 0 bytes in 0 blocks
==12748==    indirectly lost: 0 bytes in 0 blocks
==12748==      possibly lost: 5,700 bytes in 160 blocks
==12748==    still reachable: 214,061 bytes in 413 blocks
==12748==         suppressed: 0 bytes in 0 blocks
==12748== Rerun with --leak-check=full to see details of leaked memory
==12748== 
==12748== For counts of detected and suppressed errors, rerun with: -v
==12748== Use --track-origins=yes to see where uninitialised values come from
==12748== ERROR SUMMARY: 2 errors from 2 contexts (suppressed: 0 from 0)

$ LD_LIBRARY_PATH=$PWD/10.2.1-reverted/lib valgrind glxtest/glxtest 
==12563== Memcheck, a memory error detector
==12563== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al.
==12563== Using Valgrind-3.9.0 and LibVEX; rerun with -h for copyright info
==12563== Command: glxtest/glxtest
==12563== 
==12563== Warning: client switching stacks?  SP change: 0xbe8a45f0 --> 0x4022f9c
==12563==          to suppress, use: --max-stackframe=1165486508 or greater
==12563== Warning: client switching stacks?  SP change: 0x4022f9c --> 0xbe8a45f0
==12563==          to suppress, use: --max-stackframe=1165486508 or greater
==12563== Use of uninitialised value of size 4
==12563==    at 0x4D33143: cso_hash_find (cso_hash.c:210)
==12563==    by 0x4D8F4BC: util_hash_table_remove (u_hash_table.c:109)
==12563==    by 0x4A54FB3: nouveau_drm_screen_unref (nouveau_drm_winsys.c:29)
==12563==    by 0x4A69FC9: nv30_screen_destroy (nv30_screen.c:313)
==12563==    by 0x4A52678: dri_destroy_screen_helper (dri_screen.c:378)
==12563==    by 0x4A5271D: dri_destroy_screen (dri_screen.c:388)
==12563==    by 0x4A4EFA5: driDestroyScreen (dri_util.c:235)
==12563==    by 0x49518EC: dri2DestroyScreen (dri2_glx.c:710)
==12563==    by 0x492AD58: FreeScreenConfigs.isra.3 (glxext.c:208)
==12563==    by 0x492ADE1: glx_display_free (glxext.c:231)
==12563==    by 0x492AF32: __glXCloseDisplay (glxext.c:277)
==12563==    by 0x40843E0: XCloseDisplay (in /usr/lib/libX11.so.6.3.0)
==12563== 
VENDOR
nouveau
RENDERER
Gallium 0.4 on NV34
VERSION
1.5 Mesa 10.2.1
TFP
TRUE
==12563== 
==12563== HEAP SUMMARY:
==12563==     in use at exit: 14,424 bytes in 101 blocks
==12563==   total heap usage: 5,546 allocs, 5,445 frees, 2,298,410 bytes allocated
==12563== 
==12563== LEAK SUMMARY:
==12563==    definitely lost: 632 bytes in 8 blocks
==12563==    indirectly lost: 0 bytes in 0 blocks
==12563==      possibly lost: 0 bytes in 0 blocks
==12563==    still reachable: 13,792 bytes in 93 blocks
==12563==         suppressed: 0 bytes in 0 blocks
==12563== Rerun with --leak-check=full to see details of leaked memory
==12563== 
==12563== For counts of detected and suppressed errors, rerun with: -v
==12563== Use --track-origins=yes to see where uninitialised values come from
==12563== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0)

$ LD_LIBRARY_PATH=$PWD/10.2.1-bufctx/lib valgrind glxtest/glxtest 
==12569== Memcheck, a memory error detector
==12569== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al.
==12569== Using Valgrind-3.9.0 and LibVEX; rerun with -h for copyright info
==12569== Command: glxtest/glxtest
==12569== 
==12569== Warning: client switching stacks?  SP change: 0xbec1e5f0 --> 0x4022f9c
==12569==          to suppress, use: --max-stackframe=1161841068 or greater
==12569== Warning: client switching stacks?  SP change: 0x4022f9c --> 0xbec1e5f0
==12569==          to suppress, use: --max-stackframe=1161841068 or greater
==12569== Use of uninitialised value of size 4
==12569==    at 0x4D33163: cso_hash_find (cso_hash.c:210)
==12569==    by 0x4D8F4DC: util_hash_table_remove (u_hash_table.c:109)
==12569==    by 0x4A54FB3: nouveau_drm_screen_unref (nouveau_drm_winsys.c:29)
==12569==    by 0x4A6A04A: nv30_screen_destroy (nv30_screen.c:313)
==12569==    by 0x4A52678: dri_destroy_screen_helper (dri_screen.c:378)
==12569==    by 0x4A5271D: dri_destroy_screen (dri_screen.c:388)
==12569==    by 0x4A4EFA5: driDestroyScreen (dri_util.c:235)
==12569==    by 0x49518EC: dri2DestroyScreen (dri2_glx.c:710)
==12569==    by 0x492AD58: FreeScreenConfigs.isra.3 (glxext.c:208)
==12569==    by 0x492ADE1: glx_display_free (glxext.c:231)
==12569==    by 0x492AF32: __glXCloseDisplay (glxext.c:277)
==12569==    by 0x40843E0: XCloseDisplay (in /usr/lib/libX11.so.6.3.0)
==12569== 
nouveau: kernel rejected pushbuf: Bad file descriptor
nouveau: ch0: krec 0 pushes 1 bufs 1 relocs 0
nouveau: ch0: buf 00000000 00000002 00000004 00000004 00000000
nouveau: ch0: psh 00000000 000000012c 0000000140
nouveau:        0x0008fd6c
nouveau:        0x00000000
nouveau:        0x00000003
nouveau:        0x00020000
nouveau:        0x00000000
^C==12569== 
==12569== HEAP SUMMARY:
==12569==     in use at exit: 219,831 bytes in 573 blocks
==12569==   total heap usage: 5,544 allocs, 4,971 frees, 2,298,336 bytes allocated
==12569== 
==12569== LEAK SUMMARY:
==12569==    definitely lost: 0 bytes in 0 blocks
==12569==    indirectly lost: 0 bytes in 0 blocks
==12569==      possibly lost: 5,700 bytes in 160 blocks
==12569==    still reachable: 214,131 bytes in 413 blocks
==12569==         suppressed: 0 bytes in 0 blocks
==12569== Rerun with --leak-check=full to see details of leaked memory
==12569== 
==12569== For counts of detected and suppressed errors, rerun with: -v
==12569== Use --track-origins=yes to see where uninitialised values come from
==12569== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0)

$ LD_LIBRARY_PATH=$PWD/10.2.1-leaks/lib valgrind glxtest/glxtest 
==12577== Memcheck, a memory error detector
==12577== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al.
==12577== Using Valgrind-3.9.0 and LibVEX; rerun with -h for copyright info
==12577== Command: glxtest/glxtest
==12577== 
==12577== Warning: client switching stacks?  SP change: 0xbe9565f0 --> 0x4022f9c
==12577==          to suppress, use: --max-stackframe=1164757420 or greater
==12577== Warning: client switching stacks?  SP change: 0x4022f9c --> 0xbe9565f0
==12577==          to suppress, use: --max-stackframe=1164757420 or greater
==12577== Use of uninitialised value of size 4
==12577==    at 0x4D33193: cso_hash_find (cso_hash.c:210)
==12577==    by 0x4D8F50C: util_hash_table_remove (u_hash_table.c:109)
==12577==    by 0x4A54FB3: nouveau_drm_screen_unref (nouveau_drm_winsys.c:29)
==12577==    by 0x4A6A04A: nv30_screen_destroy (nv30_screen.c:313)
==12577==    by 0x4A52678: dri_destroy_screen_helper (dri_screen.c:378)
==12577==    by 0x4A5271D: dri_destroy_screen (dri_screen.c:388)
==12577==    by 0x4A4EFA5: driDestroyScreen (dri_util.c:235)
==12577==    by 0x49518EC: dri2DestroyScreen (dri2_glx.c:710)
==12577==    by 0x492AD58: FreeScreenConfigs.isra.3 (glxext.c:208)
==12577==    by 0x492ADE1: glx_display_free (glxext.c:231)
==12577==    by 0x492AF32: __glXCloseDisplay (glxext.c:277)
==12577==    by 0x40843E0: XCloseDisplay (in /usr/lib/libX11.so.6.3.0)
==12577== 
==12577== Invalid read of size 4
==12577==    at 0x4A6B2E5: nv30_context_kick_notify (nv30_context.c:45)
==12577==    by 0x6EFAE5B: ??? (in /usr/lib/libdrm_nouveau.so.2.0.0)
==12577==    by 0x6EFB149: ??? (in /usr/lib/libdrm_nouveau.so.2.0.0)
==12577==    by 0x6EFBEB9: nouveau_pushbuf_kick (in /usr/lib/libdrm_nouveau.so.2.0.0)
==12577==    by 0x4A6270E: nouveau_fence_wait (nouveau_fence.c:196)
==12577==    by 0x4A6A06C: nv30_screen_destroy (nv30_screen.c:323)
==12577==    by 0x4A52678: dri_destroy_screen_helper (dri_screen.c:378)
==12577==    by 0x4A5271D: dri_destroy_screen (dri_screen.c:388)
==12577==    by 0x4A4EFA5: driDestroyScreen (dri_util.c:235)
==12577==    by 0x49518EC: dri2DestroyScreen (dri2_glx.c:710)
==12577==    by 0x492AD58: FreeScreenConfigs.isra.3 (glxext.c:208)
==12577==    by 0x492ADE1: glx_display_free (glxext.c:231)
==12577==  Address 0x46beaa0 is 408 bytes inside a block of size 1,724 free'd
==12577==    at 0x402B038: free (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so)
==12577==    by 0x4A6B2A1: nv30_context_destroy (nouveau_context.h:94)
==12577==    by 0x4C6CE34: st_destroy_context (st_context.c:339)
==12577==    by 0x4C87DA7: st_context_destroy (st_manager.c:619)
==12577==    by 0x4A52113: dri_destroy_context (dri_context.c:192)
==12577==    by 0x4A4EB93: driDestroyContext (dri_util.c:487)
==12577==    by 0x4951C16: dri2_destroy_context (dri2_glx.c:129)
==12577==    by 0x4927D90: glXDestroyContext (glxcmds.c:473)
==12577==    by 0x8048D06: glxtest() (in glxtest/glxtest)
==12577==    by 0x8048D84: main (in glxtest/glxtest)
==12577== 
nouveau: kernel rejected pushbuf: Bad file descriptor
nouveau: ch0: krec 0 pushes 1 bufs 1 relocs 0
nouveau: ch0: buf 00000000 00000002 00000004 00000004 00000000
nouveau: ch0: psh 00000000 000000012c 0000000140
nouveau:        0x0008fd6c
nouveau:        0x00000000
nouveau:        0x00000003
nouveau:        0x00020000
nouveau:        0x00000000
^C==12577== 
==12577== HEAP SUMMARY:
==12577==     in use at exit: 219,824 bytes in 573 blocks
==12577==   total heap usage: 5,544 allocs, 4,971 frees, 2,298,317 bytes allocated
==12577== 
==12577== LEAK SUMMARY:
==12577==    definitely lost: 0 bytes in 0 blocks
==12577==    indirectly lost: 0 bytes in 0 blocks
==12577==      possibly lost: 5,700 bytes in 160 blocks
==12577==    still reachable: 214,124 bytes in 413 blocks
==12577==         suppressed: 0 bytes in 0 blocks
==12577== Rerun with --leak-check=full to see details of leaked memory
==12577== 
==12577== For counts of detected and suppressed errors, rerun with: -v
==12577== Use --track-origins=yes to see where uninitialised values come from
==12577== ERROR SUMMARY: 2 errors from 2 contexts (suppressed: 0 from 0)

$ LD_LIBRARY_PATH=$PWD/10.2.1-bufctx_leaks/lib valgrind glxtest/glxtest 
==12584== Memcheck, a memory error detector
==12584== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al.
==12584== Using Valgrind-3.9.0 and LibVEX; rerun with -h for copyright info
==12584== Command: glxtest/glxtest
==12584== 
==12584== Warning: client switching stacks?  SP change: 0xbed295f0 --> 0x4022f9c
==12584==          to suppress, use: --max-stackframe=1160747436 or greater
==12584== Warning: client switching stacks?  SP change: 0x4022f9c --> 0xbed295f0
==12584==          to suppress, use: --max-stackframe=1160747436 or greater
==12584== Use of uninitialised value of size 4
==12584==    at 0x4D331B3: cso_hash_find (cso_hash.c:210)
==12584==    by 0x4D8F52C: util_hash_table_remove (u_hash_table.c:109)
==12584==    by 0x4A54FB3: nouveau_drm_screen_unref (nouveau_drm_winsys.c:29)
==12584==    by 0x4A6A04A: nv30_screen_destroy (nv30_screen.c:313)
==12584==    by 0x4A52678: dri_destroy_screen_helper (dri_screen.c:378)
==12584==    by 0x4A5271D: dri_destroy_screen (dri_screen.c:388)
==12584==    by 0x4A4EFA5: driDestroyScreen (dri_util.c:235)
==12584==    by 0x49518EC: dri2DestroyScreen (dri2_glx.c:710)
==12584==    by 0x492AD58: FreeScreenConfigs.isra.3 (glxext.c:208)
==12584==    by 0x492ADE1: glx_display_free (glxext.c:231)
==12584==    by 0x492AF32: __glXCloseDisplay (glxext.c:277)
==12584==    by 0x40843E0: XCloseDisplay (in /usr/lib/libX11.so.6.3.0)
==12584== 
nouveau: kernel rejected pushbuf: Bad file descriptor
nouveau: ch0: krec 0 pushes 1 bufs 1 relocs 0
nouveau: ch0: buf 00000000 00000002 00000004 00000004 00000000
nouveau: ch0: psh 00000000 000000012c 0000000140
nouveau:        0x0008fd6c
nouveau:        0x00000000
nouveau:        0x00000003
nouveau:        0x00020000
nouveau:        0x00000000
^C==12584== 
==12584== HEAP SUMMARY:
==12584==     in use at exit: 219,873 bytes in 573 blocks
==12584==   total heap usage: 5,544 allocs, 4,971 frees, 2,298,450 bytes allocated
==12584== 
==12584== LEAK SUMMARY:
==12584==    definitely lost: 0 bytes in 0 blocks
==12584==    indirectly lost: 0 bytes in 0 blocks
==12584==      possibly lost: 5,700 bytes in 160 blocks
==12584==    still reachable: 214,173 bytes in 413 blocks
==12584==         suppressed: 0 bytes in 0 blocks
==12584== Rerun with --leak-check=full to see details of leaked memory
==12584== 
==12584== For counts of detected and suppressed errors, rerun with: -v
==12584== Use --track-origins=yes to see where uninitialised values come from
==12584== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0)