[Valgrind-users] What is ioctl 0x30000001

[<ka...@il...>]

In my application I use OpenCV, although not the GPU and the program is 
strictly command line, anyways I hit a missing ioctl

==30537== Warning: noted but unhandled ioctl 0x30000001 with no 
size/direction hints.
==30537==    This could cause spurious value errors to appear.
==30537==    See README_MISSING_SYSCALL_OR_IOCTL for guidance on writing 
a proper wrapper.

Following the guide at 
http://valgrind.org/docs/manual/dist.readme-missing.html
I try
grep NNN /usr/include/asm/unistd*.h
Which didn't yield any results

Instead I took a look at my /usr/src/linux directory which in Gentoo 
points to the current kernel sources (/usr/src/linux-3.17.7-gentoo)

fruitcake@cortana /usr/src/linux $ grep -rin 0x30000001 .

./drivers/net/wireless/ath/ath6kl/core.h:212:#define 
AR6004_HW_1_1_VERSION                 0x30000001
./drivers/gpu/drm/nouveau/core/engine/fifo/nve0.c:281: nv_wo32(base, 
0x94, 0x30000001);
./drivers/gpu/drm/nouveau/core/engine/fifo/nv50.c:246: 
nv_wo32(base->ramfc, 0x7c, 0x30000001);
./drivers/gpu/drm/nouveau/core/engine/fifo/nv50.c:310: 
nv_wo32(base->ramfc, 0x7c, 0x30000001);
./drivers/gpu/drm/nouveau/core/engine/fifo/nvc0.c:244: nv_wo32(base, 
0x94, 0x30000001);
./drivers/gpu/drm/nouveau/core/engine/fifo/nv84.c:219: 
nv_wo32(base->ramfc, 0x7c, 0x30000001);
./drivers/gpu/drm/nouveau/core/engine/fifo/nv84.c:292: 
nv_wo32(base->ramfc, 0x7c, 0x30000001);
./drivers/video/fbdev/pxa3xx-gcu.h:10:#define PXA3XX_GCU_SHARED_MAGIC  
0x30000001
./arch/arm/mach-cns3xxx/pm.c:66:        if (block & 0x30000001) {
./arch/powerpc/Kconfig.debug:294:         0x30000001 for your second one

I'm not really sure what I'm doing here, and I'm not a computer 
scientist by training, not familiar with OS internals.

Is the ioctl a call to 0x30000001 PXA3XX_GCU_SHARED_MAGIC? Anybody know 
of a fix to let me keep profiling, or maybe a way to see which line of 
source triggers the call?