Fails in ioctl call in gdr_pin_buffer. Perhaps the GDRDRV_IOC_PIN_BUFFER flags are incorrect. about gdrcopy HOT 5 OPEN

@immaraj
could you please attach the output of the commands below?
uname -r
cat /etc/os-release
dmesg (after installation of gdrcopy and execution of validate)
nvidia-smi
dmesg
cat /proc/driver/nvidia/version
cat /proc/driver/nvidia/params

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@immaraj could you please close this bug if it does not reproduce anymore? thanks

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-bash-4.2$ uname -r
3.10.0-514.44.1.el7.x86_64
-bash-4.2$ cat /etc/os-release
NAME="Red Hat Enterprise Linux Server"
VERSION="7.3 (Maipo)"
ID="rhel"
ID_LIKE="fedora"
VERSION_ID="7.3"
PRETTY_NAME="Red Hat Enterprise Linux Server 7.3 (Maipo)"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:redhat:enterprise_linux:7.3:GA:server"
HOME_URL="https://www.redhat.com/"
BUG_REPORT_URL="https://bugzilla.redhat.com/"

REDHAT_BUGZILLA_PRODUCT="Red Hat Enterprise Linux 7"
REDHAT_BUGZILLA_PRODUCT_VERSION=7.3
REDHAT_SUPPORT_PRODUCT="Red Hat Enterprise Linux"
REDHAT_SUPPORT_PRODUCT_VERSION="7.3"
-bash-4.2$ dmesg (after installation of gdrcopy and execution of validate)
-bash: syntax error near unexpected token `after'
-bash-4.2$ nvidia-smi
^C^C
-bash-4.2$ uname -r
3.10.0-514.44.1.el7.x86_64
-bash-4.2$ nvidia-smi
Sat Jun 22 18:17:57 2019
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 410.79 Driver Version: 410.79 CUDA Version: 10.0 |
|-------------------------------+----------------------+----------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
|===============================+======================+======================|
| 0 Tesla V100-SXM2... Off | 00000000:1A:00.0 Off | 0 |
| N/A 34C P0 55W / 300W | 0MiB / 32480MiB | 0% Default |
+-------------------------------+----------------------+----------------------+
| 1 Tesla V100-SXM2... Off | 00000000:1C:00.0 Off | 0 |
| N/A 34C P0 55W / 300W | 0MiB / 32480MiB | 0% Default |
+-------------------------------+----------------------+----------------------+
| 2 Tesla V100-SXM2... Off | 00000000:88:00.0 Off | 0 |
| N/A 35C P0 56W / 300W | 0MiB / 32480MiB | 0% Default |
+-------------------------------+----------------------+----------------------+
| 3 Tesla V100-SXM2... Off | 00000000:8A:00.0 Off | 0 |
| N/A 34C P0 55W / 300W | 0MiB / 32480MiB | 6% Default |
+-------------------------------+----------------------+----------------------+

+-----------------------------------------------------------------------------+
| Processes: GPU Memory |
| GPU PID Type Process name Usage |
|=============================================================================|
| No running processes found |
+-----------------------------------------------------------------------------+
-bash-4.2$ cat /etc/os-release
NAME="Red Hat Enterprise Linux Server"
VERSION="7.3 (Maipo)"
ID="rhel"
ID_LIKE="fedora"
VERSION_ID="7.3"
PRETTY_NAME="Red Hat Enterprise Linux Server 7.3 (Maipo)"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:redhat:enterprise_linux:7.3:GA:server"
HOME_URL="https://www.redhat.com/"
BUG_REPORT_URL="https://bugzilla.redhat.com/"

REDHAT_BUGZILLA_PRODUCT="Red Hat Enterprise Linux 7"
REDHAT_BUGZILLA_PRODUCT_VERSION=7.3
REDHAT_SUPPORT_PRODUCT="Red Hat Enterprise Linux"
REDHAT_SUPPORT_PRODUCT_VERSION="7.3"
-bash-4.2$ cat /proc/driver/nvidia/version
NVRM version: NVIDIA UNIX x86_64 Kernel Module 410.79 Thu Nov 15 10:41:04 CST 2018
GCC version: gcc version 4.8.5 20150623 (Red Hat 4.8.5-28) (GCC)
-bash-4.2$ cat /proc/driver/nvidia/params
Mobile: 4294967295
ResmanDebugLevel: 4294967295
RmLogonRC: 1
ModifyDeviceFiles: 1
DeviceFileUID: 0
DeviceFileGID: 0
DeviceFileMode: 438
UpdateMemoryTypes: 4294967295
InitializeSystemMemoryAllocations: 1
UsePageAttributeTable: 4294967295
EnableMSI: 1
MapRegistersEarly: 0
RegisterForACPIEvents: 1
CheckPCIConfigSpace: 1
EnablePCIeGen3: 0
MemoryPoolSize: 0
KMallocHeapMaxSize: 0
VMallocHeapMaxSize: 0
IgnoreMMIOCheck: 0
TCEBypassMode: 0
UseThreadedInterrupts: 1
EnableStreamMemOPs: 0
EnableBacklightHandler: 0
EnableUserNUMAManagement: 1
RegistryDwords: ""
RegistryDwordsPerDevice: ""
RmMsg: ""
AssignGpus: ""
GpuBlacklist: ""
-bash-4.2$

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@immaraj Which gdrcopy version are you using? Is that v1.3 or did you clone it from the master branch?

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@immaraj It would be great if you try again with v2.1 and close this issue if it works. Thanks

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