Ubuntu 16.04.01 LTS (version of libgl1-mesa-dri is 11.2.0-1ubu=
ntu2.1) / Nvidia
Quadro K4000.
I am examining a sample app from SDK for a video capture card. The app is
multi-threaded. The app runs fine for some time (line 10 - 20 mins) but it
eventually crahes in glDrawArrays. I intend to try to come up with small co=
de
for reproduction if time permits but I'll attach the stack trace from the a=
pp
for now in a hope someone can figure out what's going wrong.
(gdb) core glDrawArrays.core
warning: core file may not match specified executable file.
[New LWP 14181]
[New LWP 14175]
[New LWP 14179]
[New LWP 14180]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so=
.1".
Core was generated by `{app-name-hidden}'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 nvc0_resource_validate (flags=3D<optimized out>, res=3D<optimi=
zed out>)
at ../../../../../src/gallium/drivers/nouveau/nvc0/nvc0_screen.h:156
156 ../../../../../src/gallium/drivers/nouveau/nvc0/nvc0_screen.h: No s=
uch
file or directory.
[Current thread is 1 (Thread 0x7fffee488700 (LWP 14181))]
(gdb) info threads
Id Target Id Frame
* 1 Thread 0x7fffee488700 (LWP 14181) nvc0_resource_validate
(flags=3D<optimized out>,
res=3D<optimized out>)
at ../../../../../src/gallium/drivers/nouveau/nvc0/nvc0_screen.h:156
2 Thread 0x7ffff7fd2740 (LWP 14175) 0x00007ffff741798d in recvmsg ()
at ../sysdeps/unix/syscall-template.S:84
3 Thread 0x7fffef48a700 (LWP 14179) 0x00007ffff6684687 in ioctl ()
at ../sysdeps/unix/syscall-template.S:84
4 Thread 0x7fffeec89700 (LWP 14180) 0x00007ffff7416867 in
futex_abstimed_wait_cancelable (private=3D0, abstime=3D0x0, expected=3D0,
futex_word=3D0x611838 <gPboFifo+344>)
at ../sysdeps/unix/sysv/linux/futex-internal.h:205
(gdb) where
#0 nvc0_resource_validate (flags=3D<optimized out>, res=3D<optimi=
zed out>)
at ../../../../../src/gallium/drivers/nouveau/nvc0/nvc0_screen.h:156
#1 nvc0_bufctx_fence (nvc0=3Dnvc0@entry=3D0x7842c0, bufctx=3D<optim=
ized out>,
on_flush=3Don_flush@entry=3Dtrue)
at ../../../../../src/gallium/drivers/nouveau/nvc0/nvc0_context.c:434
#2 0x00007ffff38b69c3 in nvc0_state_validate (nvc0=3Dnvc0@entry=3D0x78=
42c0,
mask=3Dmask@entry=3D4294967295)
at
../../../../../src/gallium/drivers/nouveau/nvc0/nvc0_state_validate.c:760
#3 0x00007ffff38c1dcd in nvc0_draw_vbo (pipe=3D0x7842c0, info=3D0x7fffee48=
7890)
at ../../../../../src/gallium/drivers/nouveau/nvc0/nvc0_vbo.c:972
#4 0x00007ffff3572e77 in st_draw_vbo (ctx=3D0x7ae730, prims=3D<optimize=
d out>,
nr_prims=3D1,
ib=3D0x0, index_bounds_valid=3D<optimized out>, min_index=3D0, ma=
x_index=3D3,
tfb_vertcount=3D0x0, stream=3D0, indirect=3D0x0)
at ../../../src/mesa/state_tracker/st_draw.c:288
#5 0x00007ffff353994a in vbo_draw_arrays (ctx=3D0x7ae730, mode=3D6, start=
=3D0,
count=3D4,
numInstances=3D1, baseInstance=3D0) at
../../../src/mesa/vbo/vbo_exec_array.c:497
#6 0x0000000000404e8b in renderToWindow (target=3D4) at main.cpp:825
#7 0x0000000000405efd in RenderThread (pArg=3D0x7fffffffe140) at main.cpp:=
1105
#8 0x00007ffff740e6fa in start_thread (arg=3D0x7fffee488700) at
pthread_create.c:333
#9 0x00007ffff668eb5d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109
(gdb) p res
$1 =3D <optimized out>
(gdb) up
#1 nvc0_bufctx_fence (nvc0=3Dnvc0@entry=3D0x7842c0, bufctx=3D<optim=
ized out>,
on_flush=3Don_flush@entry=3Dtrue)
at ../../../../../src/gallium/drivers/nouveau/nvc0/nvc0_context.c:434
434 ../../../../../src/gallium/drivers/nouveau/nvc0/nvc0_context.c: No =
such
file or directory.
(gdb) p res
$2 =3D (struct nv04_resource *) 0xfa
(gdb) p ref
$3 =3D (struct nouveau_bufref *) 0x786f18
(gdb) p ref->priv
$4 =3D (void *) 0xfa
(gdb)