Using -Oline -j 72 W=1 redirect to /tmp/tmp.N0DzQ2n5FB and /tmp/tmp.IZ8MiuViVd
LLVM=1 cc=clang
clang version 18.1.6 (Fedora 18.1.6-3.fc40)
Tree base:
a2cbb1603943 ("tcp: Update window clamping condition")
Baseline building the tree
make[1]: Entering directory '/home/nipa/net/wt-0/build_clang'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/net/wt-0/build_clang'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
mkdir -p /home/nipa/net/wt-0/build_clang/tools/objtool && make O=/home/nipa/net/wt-0/build_clang subdir=tools/objtool --no-print-directory -C objtool 
  INSTALL libsubcmd_headers
  CALL    ../scripts/checksyscalls.sh
  CHK     kernel/kheaders_data.tar.xz
  CC [M]  net/ipv6/netfilter/nf_conntrack_reasm.o
  CC [M]  net/netfilter/nfnetlink.o
  CC [M]  net/bridge/br_netfilter_hooks.o
  CC [M]  net/netfilter/nfnetlink_queue.o
  LD [M]  net/bridge/br_netfilter.o
  LD [M]  net/ipv6/netfilter/nf_defrag_ipv6.o
  CC [M]  net/netfilter/nf_flow_table_offload.o
  LD [M]  net/netfilter/nf_flow_table.o
  CC [M]  net/netfilter/nf_tables_api.o
  LD [M]  net/netfilter/nf_tables.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#664)
  LD [M]  net/netfilter/nfnetlink.ko
  LD [M]  net/netfilter/nfnetlink_queue.ko
  LD [M]  net/netfilter/nf_tables.ko
  LD [M]  net/netfilter/nf_flow_table.ko
  LD [M]  net/bridge/br_netfilter.ko
  CC [M]  net/ipv6/netfilter/nf_defrag_ipv6.mod.o
  LD [M]  net/ipv6/netfilter/nf_defrag_ipv6.ko
Building the tree before the patch
make[1]: Entering directory '/home/nipa/net/wt-0/build_clang'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/net/wt-0/build_clang'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
mkdir -p /home/nipa/net/wt-0/build_clang/tools/objtool && make O=/home/nipa/net/wt-0/build_clang subdir=tools/objtool --no-print-directory -C objtool 
  INSTALL libsubcmd_headers
  CALL    ../scripts/checksyscalls.sh
  CHK     kernel/kheaders_data.tar.xz
  CC [M]  net/ipv6/netfilter/nf_conntrack_reasm.o
  LD [M]  net/ipv6/netfilter/nf_defrag_ipv6.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#664)
  CC [M]  net/ipv6/netfilter/nf_defrag_ipv6.mod.o
  LD [M]  net/ipv6/netfilter/nf_defrag_ipv6.ko
Building the tree with the patch
make[1]: Entering directory '/home/nipa/net/wt-0/build_clang'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/net/wt-0/build_clang'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
mkdir -p /home/nipa/net/wt-0/build_clang/tools/objtool && make O=/home/nipa/net/wt-0/build_clang subdir=tools/objtool --no-print-directory -C objtool 
  INSTALL libsubcmd_headers
  CALL    ../scripts/checksyscalls.sh
  CHK     kernel/kheaders_data.tar.xz
  CC [M]  net/ipv6/netfilter/nf_conntrack_reasm.o
  LD [M]  net/ipv6/netfilter/nf_defrag_ipv6.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#664)
  CC [M]  net/ipv6/netfilter/nf_defrag_ipv6.mod.o
  LD [M]  net/ipv6/netfilter/nf_defrag_ipv6.ko