diff --git a/Makefile.rhelver b/Makefile.rhelver
index 8bdbd5dd1..9e1fac485 100644
--- a/Makefile.rhelver
+++ b/Makefile.rhelver
@@ -12,7 +12,7 @@ RHEL_MINOR = 99
 #
 # Use this spot to avoid future merge conflicts.
 # Do not trim this comment.
-RHEL_RELEASE = 41
+RHEL_RELEASE = 42
 
 #
 # RHEL_REBASE_NUM
diff --git a/kernel-aarch64-16k-debug-fedora.config b/kernel-aarch64-16k-debug-fedora.config
index 3a7beba8a..cabc7f732 100644
--- a/kernel-aarch64-16k-debug-fedora.config
+++ b/kernel-aarch64-16k-debug-fedora.config
@@ -9928,7 +9928,7 @@ CONFIG_XFS_POSIX_ACL=y
 CONFIG_XFS_QUOTA=y
 CONFIG_XFS_RT=y
 CONFIG_XFS_SUPPORT_ASCII_CI=y
-# CONFIG_XFS_SUPPORT_V4 is not set
+CONFIG_XFS_SUPPORT_V4=y
 CONFIG_XFS_WARN=y
 # CONFIG_XGENE_DMA is not set
 CONFIG_XGENE_PMU=y
diff --git a/kernel-aarch64-16k-fedora.config b/kernel-aarch64-16k-fedora.config
index 94a003b10..d7a06729c 100644
--- a/kernel-aarch64-16k-fedora.config
+++ b/kernel-aarch64-16k-fedora.config
@@ -9899,7 +9899,7 @@ CONFIG_XFS_POSIX_ACL=y
 CONFIG_XFS_QUOTA=y
 CONFIG_XFS_RT=y
 CONFIG_XFS_SUPPORT_ASCII_CI=y
-# CONFIG_XFS_SUPPORT_V4 is not set
+CONFIG_XFS_SUPPORT_V4=y
 # CONFIG_XFS_WARN is not set
 # CONFIG_XGENE_DMA is not set
 CONFIG_XGENE_PMU=y
diff --git a/kernel-aarch64-debug-fedora.config b/kernel-aarch64-debug-fedora.config
index 4308b61af..0481629fe 100644
--- a/kernel-aarch64-debug-fedora.config
+++ b/kernel-aarch64-debug-fedora.config
@@ -9928,7 +9928,7 @@ CONFIG_XFS_POSIX_ACL=y
 CONFIG_XFS_QUOTA=y
 CONFIG_XFS_RT=y
 CONFIG_XFS_SUPPORT_ASCII_CI=y
-# CONFIG_XFS_SUPPORT_V4 is not set
+CONFIG_XFS_SUPPORT_V4=y
 CONFIG_XFS_WARN=y
 # CONFIG_XGENE_DMA is not set
 CONFIG_XGENE_PMU=y
diff --git a/kernel-aarch64-fedora.config b/kernel-aarch64-fedora.config
index e95b8c162..65c23364a 100644
--- a/kernel-aarch64-fedora.config
+++ b/kernel-aarch64-fedora.config
@@ -9899,7 +9899,7 @@ CONFIG_XFS_POSIX_ACL=y
 CONFIG_XFS_QUOTA=y
 CONFIG_XFS_RT=y
 CONFIG_XFS_SUPPORT_ASCII_CI=y
-# CONFIG_XFS_SUPPORT_V4 is not set
+CONFIG_XFS_SUPPORT_V4=y
 # CONFIG_XFS_WARN is not set
 # CONFIG_XGENE_DMA is not set
 CONFIG_XGENE_PMU=y
diff --git a/kernel-aarch64-rt-debug-rhel.config b/kernel-aarch64-rt-debug-rhel.config
index 581b24113..fc4bd536e 100644
--- a/kernel-aarch64-rt-debug-rhel.config
+++ b/kernel-aarch64-rt-debug-rhel.config
@@ -5200,7 +5200,7 @@ CONFIG_RADIO_TEA575X=m
 CONFIG_RAID_ATTRS=m
 # CONFIG_RANDOM32_SELFTEST is not set
 CONFIG_RANDOMIZE_BASE=y
-CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT=y
+# CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT is not set
 CONFIG_RANDOMIZE_KSTACK_OFFSET=y
 CONFIG_RANDOMIZE_MEMORY_PHYSICAL_PADDING=0xa
 CONFIG_RANDOMIZE_MEMORY=y
diff --git a/kernel-aarch64-rt-rhel.config b/kernel-aarch64-rt-rhel.config
index 07bc62ed0..99d699503 100644
--- a/kernel-aarch64-rt-rhel.config
+++ b/kernel-aarch64-rt-rhel.config
@@ -5177,7 +5177,7 @@ CONFIG_RADIO_TEA575X=m
 CONFIG_RAID_ATTRS=m
 # CONFIG_RANDOM32_SELFTEST is not set
 CONFIG_RANDOMIZE_BASE=y
-CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT=y
+# CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT is not set
 CONFIG_RANDOMIZE_KSTACK_OFFSET=y
 CONFIG_RANDOMIZE_MEMORY_PHYSICAL_PADDING=0xa
 CONFIG_RANDOMIZE_MEMORY=y
diff --git a/kernel-ppc64le-debug-fedora.config b/kernel-ppc64le-debug-fedora.config
index 10eb30bc6..af059eed8 100644
--- a/kernel-ppc64le-debug-fedora.config
+++ b/kernel-ppc64le-debug-fedora.config
@@ -8214,7 +8214,7 @@ CONFIG_XFS_POSIX_ACL=y
 CONFIG_XFS_QUOTA=y
 CONFIG_XFS_RT=y
 CONFIG_XFS_SUPPORT_ASCII_CI=y
-# CONFIG_XFS_SUPPORT_V4 is not set
+CONFIG_XFS_SUPPORT_V4=y
 CONFIG_XFS_WARN=y
 # CONFIG_XIL_AXIS_FIFO is not set
 # CONFIG_XILINX_AXI_EMAC is not set
diff --git a/kernel-ppc64le-fedora.config b/kernel-ppc64le-fedora.config
index 7309f81c9..7dc8c083e 100644
--- a/kernel-ppc64le-fedora.config
+++ b/kernel-ppc64le-fedora.config
@@ -8183,7 +8183,7 @@ CONFIG_XFS_POSIX_ACL=y
 CONFIG_XFS_QUOTA=y
 CONFIG_XFS_RT=y
 CONFIG_XFS_SUPPORT_ASCII_CI=y
-# CONFIG_XFS_SUPPORT_V4 is not set
+CONFIG_XFS_SUPPORT_V4=y
 # CONFIG_XFS_WARN is not set
 # CONFIG_XIL_AXIS_FIFO is not set
 # CONFIG_XILINX_AXI_EMAC is not set
diff --git a/kernel-s390x-debug-fedora.config b/kernel-s390x-debug-fedora.config
index a912bf8ca..1de5b8b2d 100644
--- a/kernel-s390x-debug-fedora.config
+++ b/kernel-s390x-debug-fedora.config
@@ -8151,7 +8151,7 @@ CONFIG_XFS_POSIX_ACL=y
 CONFIG_XFS_QUOTA=y
 CONFIG_XFS_RT=y
 CONFIG_XFS_SUPPORT_ASCII_CI=y
-# CONFIG_XFS_SUPPORT_V4 is not set
+CONFIG_XFS_SUPPORT_V4=y
 CONFIG_XFS_WARN=y
 # CONFIG_XIL_AXIS_FIFO is not set
 # CONFIG_XILINX_AXI_EMAC is not set
diff --git a/kernel-s390x-fedora.config b/kernel-s390x-fedora.config
index e8fdc8ec5..98b20776c 100644
--- a/kernel-s390x-fedora.config
+++ b/kernel-s390x-fedora.config
@@ -8120,7 +8120,7 @@ CONFIG_XFS_POSIX_ACL=y
 CONFIG_XFS_QUOTA=y
 CONFIG_XFS_RT=y
 CONFIG_XFS_SUPPORT_ASCII_CI=y
-# CONFIG_XFS_SUPPORT_V4 is not set
+CONFIG_XFS_SUPPORT_V4=y
 # CONFIG_XFS_WARN is not set
 # CONFIG_XIL_AXIS_FIFO is not set
 # CONFIG_XILINX_AXI_EMAC is not set
diff --git a/kernel-x86_64-debug-fedora.config b/kernel-x86_64-debug-fedora.config
index dbfefc4ef..1c739e004 100644
--- a/kernel-x86_64-debug-fedora.config
+++ b/kernel-x86_64-debug-fedora.config
@@ -8820,7 +8820,7 @@ CONFIG_XFS_POSIX_ACL=y
 CONFIG_XFS_QUOTA=y
 CONFIG_XFS_RT=y
 CONFIG_XFS_SUPPORT_ASCII_CI=y
-# CONFIG_XFS_SUPPORT_V4 is not set
+CONFIG_XFS_SUPPORT_V4=y
 CONFIG_XFS_WARN=y
 # CONFIG_XIAOMI_WMI is not set
 # CONFIG_XIL_AXIS_FIFO is not set
diff --git a/kernel-x86_64-fedora.config b/kernel-x86_64-fedora.config
index c567eaa09..ae22a87c0 100644
--- a/kernel-x86_64-fedora.config
+++ b/kernel-x86_64-fedora.config
@@ -8790,7 +8790,7 @@ CONFIG_XFS_POSIX_ACL=y
 CONFIG_XFS_QUOTA=y
 CONFIG_XFS_RT=y
 CONFIG_XFS_SUPPORT_ASCII_CI=y
-# CONFIG_XFS_SUPPORT_V4 is not set
+CONFIG_XFS_SUPPORT_V4=y
 # CONFIG_XFS_WARN is not set
 # CONFIG_XIAOMI_WMI is not set
 # CONFIG_XIL_AXIS_FIFO is not set
diff --git a/kernel.changelog b/kernel.changelog
index a283a8374..0bf3362ef 100644
--- a/kernel.changelog
+++ b/kernel.changelog
@@ -1,3 +1,13 @@
+* Wed Feb 21 2024 Fedora Kernel Team <kernel-team@fedoraproject.org> [6.8.0-0.rc5.9fc1ccccfd8d.42]
+- redhat/configs: For aarch64/RT, default kstack randomization off (Jeremy Linton)
+- redhat/Makefile: remove an unused target (Ondrej Mosnacek)
+- redhat/Makefile: fix setup-source and document its caveat (Ondrej Mosnacek)
+- redhat/Makefile: fix race condition when making the KABI tarball (Ondrej Mosnacek)
+- redhat/Makefile: refactor KABI tarball creation (Ondrej Mosnacek)
+- Turn XFS_SUPPORT_V4 back on for Fedora (Justin M. Forbes)
+- Linux v6.8.0-0.rc5.9fc1ccccfd8d
+Resolves: 
+
 * Mon Feb 19 2024 Fedora Kernel Team <kernel-team@fedoraproject.org> [6.8.0-0.rc5.41]
 - Linux v6.8.0-0.rc5
 Resolves: 
diff --git a/kernel.spec b/kernel.spec
index 1a04e8e76..812ecfc4f 100644
--- a/kernel.spec
+++ b/kernel.spec
@@ -163,13 +163,13 @@ Summary: The Linux kernel
 %define specrpmversion 6.8.0
 %define specversion 6.8.0
 %define patchversion 6.8
-%define pkgrelease 0.rc5.41
+%define pkgrelease 0.rc5.20240221git9fc1ccccfd8d.42
 %define kversion 6
-%define tarfile_release 6.8-rc5
+%define tarfile_release 6.8-rc5-20-g9fc1ccccfd8d
 # This is needed to do merge window version magic
 %define patchlevel 8
 # This allows pkg_release to have configurable %%{?dist} tag
-%define specrelease 0.rc5.41%{?buildid}%{?dist}
+%define specrelease 0.rc5.20240221git9fc1ccccfd8d.42%{?buildid}%{?dist}
 # This defines the kabi tarball version
 %define kabiversion 6.8.0
 
@@ -1137,6 +1137,19 @@ Summary: Developement files for the perf library from kernel source
 This package includes libraries and header files needed for development
 of applications which use perf library from kernel source.
 
+%package -n libperf-debuginfo
+Summary: Debug information for package libperf
+Group: Development/Debug
+Requires: %{name}-debuginfo-common-%{_target_cpu} = %{version}-%{release}
+AutoReqProv: no
+%description -n libperf-debuginfo
+This package provides debug information for the libperf package.
+
+# Note that this pattern only works right to match the .build-id
+# symlinks because of the trailing nonmatching alternation and
+# the leading .*, because of find-debuginfo.sh's buggy handling
+# of matching the pattern against the symlinks file.
+%{expand:%%global _find_debuginfo_opts %{?_find_debuginfo_opts} -p '.*%%{_libdir}/libperf.so(\.debug)?|XXX' -o libperf-debuginfo.list}
 # with_libperf
 %endif
 
@@ -3561,6 +3574,7 @@ fi\
 %{_docdir}/libperf/html/libperf-counting.html
 %{_docdir}/libperf/html/libperf-sampling.html
 
+%files -f libperf-debuginfo.list -n libperf-debuginfo
 # with_libperf
 %endif
 
@@ -3841,6 +3855,18 @@ fi\
 #
 #
 %changelog
+* Wed Feb 21 2024 Justin M. Forbes <jforbes@fedoraproject.org> [6.8.0-0.rc5.20240221git9fc1ccccfd8d.42]
+- Add libperf-debuginfo subpackage (Justin M. Forbes)
+
+* Wed Feb 21 2024 Fedora Kernel Team <kernel-team@fedoraproject.org> [6.8.0-0.rc5.9fc1ccccfd8d.42]
+- redhat/configs: For aarch64/RT, default kstack randomization off (Jeremy Linton)
+- redhat/Makefile: remove an unused target (Ondrej Mosnacek)
+- redhat/Makefile: fix setup-source and document its caveat (Ondrej Mosnacek)
+- redhat/Makefile: fix race condition when making the KABI tarball (Ondrej Mosnacek)
+- redhat/Makefile: refactor KABI tarball creation (Ondrej Mosnacek)
+- Turn XFS_SUPPORT_V4 back on for Fedora (Justin M. Forbes)
+- Linux v6.8.0-0.rc5.9fc1ccccfd8d
+
 * Mon Feb 19 2024 Fedora Kernel Team <kernel-team@fedoraproject.org> [6.8.0-0.rc5.41]
 - Linux v6.8.0-0.rc5
 
diff --git a/sources b/sources
index 4ff0cc122..adf2571c0 100644
--- a/sources
+++ b/sources
@@ -1,5 +1,5 @@
 SHA512 (kernel-abi-stablelists-6.6.0.tar.bz2) = 4f917598056dee5e23814621ec96ff2e4a411c8c4ba9d56ecb01b23cb96431825bedbecfcbaac9338efbf5cb21694d85497fa0bf43e7c80d9cd10bc6dd144dbd
 SHA512 (kernel-kabi-dw-6.6.0.tar.bz2) = 19308cd976031d05e18ef7f5d093218acdb89446418bab0cd956ff12cf66369915b9e64bb66fa9f20939428a60e81884fec5be3529c6c7461738d6540d3cc5c6
-SHA512 (linux-6.8-rc5.tar.xz) = 08b9294cd546edfa979b1776216e4c475dc4f1b0478fc83a002bc6714254812ace0d151c049ee2f0d3655e11e9c42ecb9290787a7948859ca632c4a0a158445e
-SHA512 (kernel-abi-stablelists-6.8.0.tar.xz) = 294291765d2fc9635ec0e10a251e07b85241994ddaacbb2baa624e8f231e1f8e0d64ed8962f664775dbeb6e2eae0927ad1f9333e4a85a5250bb61c4f829c7646
-SHA512 (kernel-kabi-dw-6.8.0.tar.xz) = 45a299c12b7947d234306e86ca7ea556a99a12d9bb6409f39329a2f64f3e12acb3749b090c0dc8613028e36dbde693e2e33ec427c67ddfa9e4eff2ffdc73a230
+SHA512 (linux-6.8-rc5-20-g9fc1ccccfd8d.tar.xz) = 5dff1c3c8d58e95929afa830b88587dad6e7a2a807718c49a253d5cae37ff8773d37e59cf60a0d83316cf8f46a0e35bd078b85955d356238d4a9162a9781d179
+SHA512 (kernel-abi-stablelists-6.8.0.tar.xz) = aa5ad7c9416525b9ed7174fdfee89e784b950c926778467d46032bf9b7975e4bc11f37edc2f51609a777d54b74c2615075393b218981dbc6e603a335f2c4df2d
+SHA512 (kernel-kabi-dw-6.8.0.tar.xz) = 6d37e7969b5923bb0c9cc7d0c1c816d2ceee1f25396a3d8e6bf39e12f942fc4f1bfeab9137af6cd5360172d2e88087aa297b7de3a8785c8e2c6fe7f50d34aede