I am able to load the modules and run opengl applications but I can't run any CUDA application; trying to execute some of the samples delivered with cuda result in an out of memory error:
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./deviceQuery Starting...
CUDA Device Query (Runtime API) version (CUDART static linking)
cudaGetDeviceCount returned 2
-> out of memory
Result = FAIL
Or using pycuda:
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>>> import pycuda.driver as cuda
>>> import pycuda.autoinit
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python3.5/site-packages/pycuda/autoinit.py", line 5, in <module>
cuda.init()
pycuda._driver.MemoryError: cuInit failed: out of memory
I don't see any errors running dmesg and all required nvidia modules are loaded. On the same system everything works using the unpatched kernel and drivers.
This is my current configuration:
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#
# Grsecurity
#
CONFIG_PAX_PER_CPU_PGD=y
CONFIG_TASK_SIZE_MAX_SHIFT=42
CONFIG_PAX_USERCOPY_SLABS=y
CONFIG_GRKERNSEC=y
# CONFIG_GRKERNSEC_CONFIG_AUTO is not set
CONFIG_GRKERNSEC_CONFIG_CUSTOM=y
CONFIG_GRKERNSEC_TPE_TRUSTED_GID=200
CONFIG_GRKERNSEC_SYMLINKOWN_GID=33
#
# Customize Configuration
#
#
# PaX
#
CONFIG_PAX=y
#
# PaX Control
#
CONFIG_PAX_SOFTMODE=y
# CONFIG_PAX_EI_PAX is not set
# CONFIG_PAX_PT_PAX_FLAGS is not set
CONFIG_PAX_XATTR_PAX_FLAGS=y
# CONFIG_PAX_NO_ACL_FLAGS is not set
CONFIG_PAX_HAVE_ACL_FLAGS=y
# CONFIG_PAX_HOOK_ACL_FLAGS is not set
#
# Non-executable pages
#
CONFIG_PAX_NOEXEC=y
CONFIG_PAX_PAGEEXEC=y
CONFIG_PAX_EMUTRAMP=y
CONFIG_PAX_MPROTECT=y
# CONFIG_PAX_MPROTECT_COMPAT is not set
# CONFIG_PAX_ELFRELOCS is not set
CONFIG_PAX_KERNEXEC=y
CONFIG_PAX_KERNEXEC_PLUGIN=y
# CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_NONE is not set
CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_BTS=y
# CONFIG_PAX_KERNEXEC_PLUGIN_METHOD_OR is not set
#
# Address Space Layout Randomization
#
CONFIG_PAX_ASLR=y
CONFIG_PAX_RANDKSTACK=y
CONFIG_PAX_RANDUSTACK=y
CONFIG_PAX_RANDMMAP=y
#
# Miscellaneous hardening features
#
# CONFIG_PAX_MEMORY_SANITIZE is not set
# CONFIG_PAX_MEMORY_STACKLEAK is not set
CONFIG_PAX_MEMORY_STRUCTLEAK=y
# CONFIG_PAX_MEMORY_UDEREF is not set
CONFIG_PAX_REFCOUNT=y
CONFIG_PAX_CONSTIFY_PLUGIN=y
CONFIG_PAX_USERCOPY=y
# CONFIG_PAX_USERCOPY_DEBUG is not set
CONFIG_PAX_SIZE_OVERFLOW=y
# CONFIG_PAX_LATENT_ENTROPY is not set
# CONFIG_PAX_RAP is not set
#
# Memory Protections
#
CONFIG_GRKERNSEC_KMEM=y
CONFIG_GRKERNSEC_IO=y
CONFIG_GRKERNSEC_BPF_HARDEN=y
CONFIG_GRKERNSEC_PERF_HARDEN=y
CONFIG_GRKERNSEC_RAND_THREADSTACK=y
CONFIG_GRKERNSEC_PROC_MEMMAP=y
CONFIG_GRKERNSEC_KSTACKOVERFLOW=y
CONFIG_GRKERNSEC_BRUTE=y
CONFIG_GRKERNSEC_MODHARDEN=y
CONFIG_GRKERNSEC_HIDESYM=y
# CONFIG_GRKERNSEC_RANDSTRUCT is not set
CONFIG_GRKERNSEC_KERN_LOCKOUT=y
#
# Role Based Access Control Options
#
CONFIG_GRKERNSEC_NO_RBAC=y
CONFIG_GRKERNSEC_ACL_HIDEKERN=y
CONFIG_GRKERNSEC_ACL_MAXTRIES=4
CONFIG_GRKERNSEC_ACL_TIMEOUT=30
#
# Filesystem Protections
#
# CONFIG_GRKERNSEC_PROC is not set
# CONFIG_GRKERNSEC_LINK is not set
CONFIG_GRKERNSEC_SYMLINKOWN=y
CONFIG_GRKERNSEC_FIFO=y
# CONFIG_GRKERNSEC_SYSFS_RESTRICT is not set
CONFIG_GRKERNSEC_ROFS=y
CONFIG_GRKERNSEC_DEVICE_SIDECHANNEL=y
CONFIG_GRKERNSEC_CHROOT=y
CONFIG_GRKERNSEC_CHROOT_MOUNT=y
CONFIG_GRKERNSEC_CHROOT_DOUBLE=y
CONFIG_GRKERNSEC_CHROOT_PIVOT=y
CONFIG_GRKERNSEC_CHROOT_CHDIR=y
CONFIG_GRKERNSEC_CHROOT_CHMOD=y
CONFIG_GRKERNSEC_CHROOT_FCHDIR=y
CONFIG_GRKERNSEC_CHROOT_MKNOD=y
CONFIG_GRKERNSEC_CHROOT_SHMAT=y
CONFIG_GRKERNSEC_CHROOT_UNIX=y
CONFIG_GRKERNSEC_CHROOT_FINDTASK=y
CONFIG_GRKERNSEC_CHROOT_NICE=y
CONFIG_GRKERNSEC_CHROOT_SYSCTL=y
CONFIG_GRKERNSEC_CHROOT_RENAME=y
CONFIG_GRKERNSEC_CHROOT_CAPS=y
CONFIG_GRKERNSEC_CHROOT_INITRD=y
#
# Kernel Auditing
#
CONFIG_GRKERNSEC_AUDIT_GROUP=y
CONFIG_GRKERNSEC_AUDIT_GID=201
# CONFIG_GRKERNSEC_EXECLOG is not set
CONFIG_GRKERNSEC_RESLOG=y
# CONFIG_GRKERNSEC_CHROOT_EXECLOG is not set
CONFIG_GRKERNSEC_AUDIT_PTRACE=y
# CONFIG_GRKERNSEC_AUDIT_CHDIR is not set
# CONFIG_GRKERNSEC_AUDIT_MOUNT is not set
CONFIG_GRKERNSEC_SIGNAL=y
CONFIG_GRKERNSEC_FORKFAIL=y
CONFIG_GRKERNSEC_TIME=y
# CONFIG_GRKERNSEC_PROC_IPADDR is not set
CONFIG_GRKERNSEC_RWXMAP_LOG=y
#
# Executable Protections
#
CONFIG_GRKERNSEC_DMESG=y
CONFIG_GRKERNSEC_HARDEN_PTRACE=y
CONFIG_GRKERNSEC_PTRACE_READEXEC=y
CONFIG_GRKERNSEC_SETXID=y
CONFIG_GRKERNSEC_HARDEN_IPC=y
CONFIG_GRKERNSEC_HARDEN_TTY=y
CONFIG_GRKERNSEC_TPE=y
CONFIG_GRKERNSEC_TPE_ALL=y
CONFIG_GRKERNSEC_TPE_INVERT=y
CONFIG_GRKERNSEC_TPE_GID=200
Is it possible to fix/workaround this issue?