The postinstall intercept hook 'update_gio_module_cache' failed - linux

Question

I am building core-image-minimal for warrior branch. My device has atom processor so I have changed nehalem to atom in tune-corei7.inc file. My machine is set to intel-corei7-64. While generating core-image-minimal, I am facing following error:
NOTE: Installing complementary packages ...
NOTE: Running ['oe-pkgdata-util', '-p', '/home/panther2/warrior/build_panther1/tmp/pkgdata/panther1', 'glob', '/tmp/installed-pkgs03hhi936', '']
NOTE: Running intercept scripts:
NOTE: > Executing update_gio_module_cache intercept ...
NOTE: Exit code 1. Output:
+ [ True = False -a qemuwrapper-cross != nativesdk-qemuwrapper-cross ]
+ qemu-x86_64 -r 3.2.0 -cpu atom,check=false -E LD_LIBRARY_PATH=/home/panther2/warrior/build_panther1/tmp/work/panther1-poky-linux/core-image-minimal/1.0-r0/rootfs/usr/lib:/home/panther2/warrior/build_panther1/tmp/work/panther1-poky-linux/core-image-minimal/1.0-r0/rootfs/lib -L /home/panther2/warrior/build_panther1/tmp/work/panther1-poky-linux/core-image-minimal/1.0-r0/rootfs /home/panther2/warrior/build_panther1/tmp/work/panther1-poky-linux/core-image-minimal/1.0-r0/rootfs/usr/libexec/gio-querymodules /home/panther2/warrior/build_panther1/tmp/work/panther1-poky-linux/core-image-minimal/1.0-r0/rootfs/usr/lib/gio/modules/
unable to find CPU model 'atom'
ERROR: The postinstall intercept hook 'update_gio_module_cache' failed, details in /home/panther2/warrior/build_panther1/tmp/work/panther1-poky-linux/core-image-minimal/1.0-r0/temp/log.do_rootfs
ERROR:
DEBUG: Python function do_rootfs finished
ERROR: Function failed: do_rootfs
Any help here?
Thanks in advance..!
Edit : Attaching "tune-corei7.inc" file
# Settings for the GCC(1) cpu-type "atom":
#
# Intel atom CPU with 64-bit extensions, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1,
# SSE4.2 and POPCNT instruction set support.
#
# This tune is recommended for Intel atom and Silvermont (e.g. Bay Trail) CPUs
# (and beyond).
#
DEFAULTTUNE ?= "corei7-64"
# Include the previous tune to pull in PACKAGE_EXTRA_ARCHS
require conf/machine/include/tune-atom.inc
# Extra tune features
TUNEVALID[corei7] = "Enable corei7 specific processor optimizations"
TUNE_CCARGS .= "${#bb.utils.contains('TUNE_FEATURES', 'corei7', ' -march=atom -mtune=generic -mfpmath=sse -msse4.2', '', d)}"
# Extra tune selections
AVAILTUNES += "corei7-32"
TUNE_FEATURES_tune-corei7-32 = "${TUNE_FEATURES_tune-x86} corei7"
BASE_LIB_tune-corei7-32 = "lib"
TUNE_PKGARCH_tune-corei7-32 = "corei7-32"
PACKAGE_EXTRA_ARCHS_tune-corei7-32 = "${PACKAGE_EXTRA_ARCHS_tune-atom-32} corei7-32"
QEMU_EXTRAOPTIONS_corei7-32 = " -cpu nehalem,check=false"
AVAILTUNES += "corei7-64"
TUNE_FEATURES_tune-corei7-64 = "${TUNE_FEATURES_tune-x86-64} corei7"
BASE_LIB_tune-corei7-64 = "lib64"
TUNE_PKGARCH_tune-corei7-64 = "corei7-64"
PACKAGE_EXTRA_ARCHS_tune-corei7-64 = "${PACKAGE_EXTRA_ARCHS_tune-atom-64} corei7-64"
QEMU_EXTRAOPTIONS_corei7-64 = " -cpu nehalem,check=false"
AVAILTUNES += "corei7-64-x32"
TUNE_FEATURES_tune-corei7-64-x32 = "${TUNE_FEATURES_tune-x86-64-x32} corei7"
BASE_LIB_tune-corei7-64-x32 = "libx32"
TUNE_PKGARCH_tune-corei7-64-x32 = "corei7-64-x32"
PACKAGE_EXTRA_ARCHS_tune-corei7-64-x32 = "${PACKAGE_EXTRA_ARCHS_tune-atom-64-x32} corei7-64-x32"
QEMU_EXTRAOPTIONS_corei7-64-x32 = " -cpu nehalem,check=false"