Package: libgl1-mesa-glx
Version: 10.2.5-1
Severity: normal
Hi!
After crossgrading from i386 to x32, OpenGL applications crash.
glxgears from mesa-utils:i386 (8.2.0-1) works, but
glxgears from mesa-utils:x32 (8.2.0-1) fails:
Program received signal SIGSEGV, Segmentation fault.
0xf76db60b in glLightfv () from /usr/lib/x86_64-linux-gnux32/libGL.so.1
(gdb) bt
#0 0xf76db60b in glLightfv () from /usr/lib/x86_64-linux-gnux32/libGL.so.1
#1 0x0040146f in ?? ()
#2 0xf6aceeea in __libc_start_main (main=<optimized out>, argc=1,
argv=<optimized out>,
init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>,
stack_end=0xffffd448)
at libc-start.c:287
#3 0x00401cfc in ?? ()
I’ve first noticed that in “xlock -nolock -mode cage”,
which, with debugging information, has:
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0xf6af524b in glGetBooleanv () from /usr/lib/x86_64-linux-gnux32/libGL.so.1
(gdb) bt
#0 0xf6af524b in glGetBooleanv () from /usr/lib/x86_64-linux-gnux32/libGL.so.1
#1 0x0040fcfe in init_GL (mi=mi@entry=0x228bde0) at visgl.c:287
#2 0x004dc6d4 in init_cage (mi=<optimized out>) at cage.c:400
#3 0x0040e462 in call_init_hook (ls=0x823340 <LockProcs+1152>, mi=<optimized
out>) at mode.c:1290
#4 0x0040887c in justDisplay (display=0x226e870) at xlock.c:2821
#5 0x0040764f in main (argc=36104304, argv=0x0) at xlock.c:3998
Bugs occur in (first glxgears, then xlock):
(gdb) disas
Dump of assembler code for function glLightfv:
0xf76db600 <+0>: mov rax,QWORD PTR [rip+0x21b9f1] # 0xf78f6ff8
0xf76db607 <+7>: mov r11,QWORD PTR fs:[rax]
=> 0xf76db60b <+11>: jmp QWORD PTR [r11+0x500]
(gdb) disas
Dump of assembler code for function glGetBooleanv:
0xf6af5240 <+0>: mov rax,QWORD PTR [rip+0x21adb1] # 0xf6d0fff8
0xf6af5247 <+7>: mov r11,QWORD PTR fs:[rax]
=> 0xf6af524b <+11>: jmp QWORD PTR [r11+0x810]
So this appears to be an indirect function call both times.
-- System Information:
Debian Release: jessie/sid
APT prefers unreleased
APT policy: (500, 'unreleased'), (500, 'unstable')
Architecture: x32 (x86_64)
Foreign Architectures: i386
Kernel: Linux 3.14-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=C, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/lksh
Versions of packages libgl1-mesa-glx:x32 depends on:
ii libc6 2.19-7
ii libdrm2 2.4.56-1
ii libglapi-mesa 10.2.5-1
ii libudev1 208-7
ii libx11-6 2:1.6.2-2
ii libx11-xcb1 2:1.6.2-2
ii libxcb-dri2-0 1.10-3
ii libxcb-dri3-0 1.10-3
ii libxcb-glx0 1.10-3
ii libxcb-present0 1.10-3
ii libxcb-sync1 1.10-3
ii libxcb1 1.10-3
ii libxdamage1 1:1.1.4-2
ii libxext6 2:1.3.2-1
ii libxfixes3 1:5.0.1-2
ii libxshmfence1 1.1-3
ii libxxf86vm1 1:1.1.3-1
ii multiarch-support 2.19-7
Versions of packages libgl1-mesa-glx:x32 recommends:
ii libgl1-mesa-dri 10.2.5-1
libgl1-mesa-glx:x32 suggests no packages.
-- no debconf information
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