Dear Maintainer, hello Nicolas,
tried to collect some more information from the two
given kernel lines [1].
I could find given the byte sequence in a similar two-GPU-equipped
laptop attaching to a runnig "optirun glxgears".
The "libGL.so.1" is the one from package primus-libs.
There it leads to the function glXCreateContext, libglfork.cpp line 609.
Unfortunately I cannot reproduce the issue on my side
with "i5-4210U/Intel HD Graphics 4400" and nvidia GF117M.
Looking through a few primus upstream bug reports I
arrived at one stating that both GPU accelerations have to
be in a working state.
Nicolas, maybe because of the updates your system fell back
to software rendering instead of the Intel graphics?
What do following commands give at your system?
glxinfo | grep -E "OpenGL renderer|direct rendering"
optirun glxinfo | grep -E "OpenGL renderer|direct rendering"
Otherwise you could also install a package systemd-coredump.
Then you should see a more complete backtrace in "journalctl -e"
after the crash happened.
Kind regards,
Bernhard
[1]
[ 191.398476] glxgears[3650]: segfault at 0 ip 00007f98c763cd13 sp
00007fffab17b3f0 error 4 in libGL.so.1[7f98c762a000+19000]
[ 191.398485] Code: 48 89 d3 48 83 ec 28 64 48 8b 04 25 28 00 00 00 48 89 44 24
18 31 c0 e8 6b d9 fe ff 45 89 e0 48 89 d9 ba 14 80 00 00 48 89 c5 <48> 8b 30 48
8b 3d 4b b4 01 00 ff 15 65 b4 01 00 48 8b 6d 00 48 89
[2]
https://wiki.debian.org/InterpretingKernelOutputAtProcessCrash
error 4:
0: no page found
0: read access
1: user-mode access
$ gdb -q --pid $(pidof glxgears)
(gdb) pipe info share | grep "libGL\."
0x00007f54f3232510 0x00007f54f324a0b7 Yes (*)
/usr/lib/x86_64-linux-gnu/primus/libGL.so.1
0x00007f54f2d1a100 0x00007f54f2d1cb79 Yes (*)
/usr/lib/x86_64-linux-gnu/libGL.so.1
benutzer@asus-x555ld:~$ ls -lisah
/usr/lib/x86_64-linux-gnu/primus/libGL.so.1
2491553 260K -rw-r--r-- 1 root root 259K 3. Apr 2022
/usr/lib/x86_64-linux-gnu/primus/libGL.so.1
benutzer@asus-x555ld:~$ dpkg -S /usr/lib/x86_64-linux-gnu/primus/libGL.so.1
primus-libs:amd64: /usr/lib/x86_64-linux-gnu/primus/libGL.so.1
(gdb) find /b 0x00007f54f3232510, 0x00007f54f324a0b7, 0x48, 0x89, 0xd3,
0x48, 0x83, 0xec, 0x28, 0x64, 0x48, 0x8b, 0x04, 0x25, 0x28, 0x00, 0x00, 0x00,
0x48, 0x89, 0x44, 0x24, 0x18, 0x31, 0xc0, 0xe8, 0x6b, 0xd9, 0xfe, 0xff, 0x45,
0x89, 0xe0, 0x48, 0x89, 0xd9, 0xba, 0x14, 0x80, 0x00, 0x00, 0x48, 0x89, 0xc5,
0x48, 0x8b, 0x30, 0x48, 0x8b, 0x3d, 0x4b, 0xb4, 0x01, 0x00, 0xff, 0x15, 0x65,
0xb4, 0x01, 0x00, 0x48, 0x8b, 0x6d, 0x00, 0x48, 0x89
0x7f54f3244ce9 <glXCreateContext+9>
1 pattern found.
(gdb) find /b 0x00007f54f2d1a100, 0x00007f54f2d1cb79, 0x48, 0x89, 0xd3,
0x48, 0x83, 0xec, 0x28, 0x64, 0x48, 0x8b, 0x04, 0x25, 0x28, 0x00, 0x00, 0x00,
0x48, 0x89, 0x44, 0x24, 0x18, 0x31, 0xc0, 0xe8, 0x6b, 0xd9, 0xfe, 0xff, 0x45,
0x89, 0xe0, 0x48, 0x89, 0xd9, 0xba, 0x14, 0x80, 0x00, 0x00, 0x48, 0x89, 0xc5,
0x48, 0x8b, 0x30, 0x48, 0x8b, 0x3d, 0x4b, 0xb4, 0x01, 0x00, 0xff, 0x15, 0x65,
0xb4, 0x01, 0x00, 0x48, 0x8b, 0x6d, 0x00, 0x48, 0x89
Pattern not found.
(gdb) b * (0x7f54f3244ce9 + 42)
Breakpoint 1 at 0x7f54f3244d13
(gdb) info b
Num Type Disp Enb Address What
1 breakpoint keep y 0x00007f54f3244d13 <glXCreateContext+51>
apt install primus-libs-dbgsym
primus-libs-dbgsym:amd64 (0~20150328-14) wird eingerichtet ...
(gdb) noshare
(gdb) pipe sharedlibrary | grep 123
(gdb) info b
Num Type Disp Enb Address What
1 breakpoint keep y 0x00007f54f3244d13 in
glXCreateContext(Display*, XVisualInfo*, GLXContext, int) at ./libglfork.cpp:609
(gdb) disassemble /r 0x7f54f3244ce9, 0x7f54f3244ce9 + 62
Dump of assembler code from 0x7f54f3244ce9 to 0x7f54f3244d27:
0x00007f54f3244ce9 <glXCreateContext(Display*, XVisualInfo*, GLXContext,
int)+9>: 48 89 d3 mov %rdx,%rbx
0x00007f54f3244cec <glXCreateContext(Display*, XVisualInfo*, GLXContext,
int)+12>: 48 83 ec 28 sub $0x28,%rsp
0x00007f54f3244cf0 <glXCreateContext(Display*, XVisualInfo*, GLXContext,
int)+16>: 64 48 8b 04 25 28 00 00 00 mov %fs:0x28,%rax
0x00007f54f3244cf9 <glXCreateContext(Display*, XVisualInfo*, GLXContext,
int)+25>: 48 89 44 24 18 mov %rax,0x18(%rsp)
0x00007f54f3244cfe <glXCreateContext(Display*, XVisualInfo*, GLXContext,
int)+30>: 31 c0 xor %eax,%eax
0x00007f54f3244d00 <glXCreateContext(Display*, XVisualInfo*, GLXContext,
int)+32>: e8 6b d9 fe ff call 0x7f54f3232670
<match_fbconfig(Display*, XVisualInfo*)>
0x00007f54f3244d05 <glXCreateContext(Display*, XVisualInfo*, GLXContext,
int)+37>: 45 89 e0 mov %r12d,%r8d
0x00007f54f3244d08 <glXCreateContext(Display*, XVisualInfo*, GLXContext,
int)+40>: 48 89 d9 mov %rbx,%rcx
0x00007f54f3244d0b <glXCreateContext(Display*, XVisualInfo*, GLXContext,
int)+43>: ba 14 80 00 00 mov $0x8014,%edx
0x00007f54f3244d10 <glXCreateContext(Display*, XVisualInfo*, GLXContext,
int)+48>: 48 89 c5 mov %rax,%rbp
>>>0x00007f54f3244d13 <glXCreateContext(Display*, XVisualInfo*, GLXContext,
int)+51>: 48 8b 30 mov (%rax),%rsi
0x00007f54f3244d16 <glXCreateContext(Display*, XVisualInfo*, GLXContext,
int)+54>: 48 8b 3d 4b b4 01 00 mov 0x1b44b(%rip),%rdi #
0x7f54f3260168 <_ZL6primus+40>
0x00007f54f3244d1d <glXCreateContext(Display*, XVisualInfo*, GLXContext,
int)+61>: ff 15 65 b4 01 00 call *0x1b465(%rip) #
0x7f54f3260188 <_ZL6primus+72>
0x00007f54f3244d23 <glXCreateContext(Display*, XVisualInfo*, GLXContext,
int)+67>: 48 8b 6d 00 mov 0x0(%rbp),%rbp
End of assembler dump.
https://sources.debian.org/src/primus/0~20150328-14/libglfork.cpp/#L609
606 GLXContext glXCreateContext(Display *dpy, XVisualInfo *vis, GLXContext
shareList, Bool direct)
607 {
608 GLXFBConfig *acfgs = match_fbconfig(dpy, vis);
609 GLXContext actx = primus.afns.glXCreateNewContext(primus.adpy,
*acfgs, GLX_RGBA_TYPE, shareList, direct);
610 primus.contexts.record(actx, *acfgs, shareList);
611 return actx;
612 }
[3]
https://github.com/amonakov/primus/issues
https://github.com/amonakov/primus/issues/118
