Using -Oline -j 72 W=1 redirect to /tmp/tmp.mksJE7piHf and /tmp/tmp.3VhzpDOHl7
CC=ccache gcc
gcc (GCC) 15.0.1 20250329 (Red Hat 15.0.1-0)
Tree base:
b936a9b8d4a5 ("net: ipv6: fix UDPv6 GSO segmentation with NAT")
Baseline building the tree
make[1]: Entering directory '/home/nipa/net/wt-0/build_32bit'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/net/wt-0/build_32bit'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
  CALL    ../scripts/checksyscalls.sh
  CHK     kernel/kheaders_data.tar.xz
  CC [M]  drivers/net/ethernet/intel/igc/igc_ptp.o
  CC [M]  drivers/net/ethernet/intel/idpf/idpf_main.o
  LD [M]  drivers/net/ethernet/intel/igc/igc.o
  CC      net/ipv4/udp_offload.o
  AR      net/ipv4/built-in.a
  AR      net/built-in.a
  CC [M]  drivers/net/dsa/ocelot/felix_vsc9959.o
  LD [M]  drivers/net/dsa/ocelot/mscc_felix.o
  CC [M]  drivers/net/ethernet/intel/idpf/idpf_lib.o
  LD [M]  drivers/net/ethernet/intel/idpf/idpf.o
  CC [M]  drivers/net/ethernet/mediatek/mtk_eth_soc.o
  LD [M]  drivers/net/ethernet/mediatek/mtk_eth.o
  AR      built-in.a
  AR      vmlinux.a
  LD      vmlinux.o
  OBJCOPY modules.builtin.modinfo
  GEN     modules.builtin
  MODPOST Module.symvers
  UPD     include/generated/utsversion.h
  CC      init/version-timestamp.o
  KSYMS   .tmp_vmlinux0.kallsyms.S
  AS      .tmp_vmlinux0.kallsyms.o
  LD      .tmp_vmlinux1
  LD [M]  drivers/net/ethernet/intel/igc/igc.ko
  CC [M]  drivers/net/dsa/ocelot/mscc_felix.mod.o
  CC [M]  drivers/net/ethernet/intel/idpf/idpf.mod.o
  CC [M]  drivers/net/ethernet/mediatek/mtk_eth.mod.o
  LD [M]  drivers/net/dsa/ocelot/mscc_felix.ko
  LD [M]  drivers/net/ethernet/intel/idpf/idpf.ko
  LD [M]  drivers/net/ethernet/mediatek/mtk_eth.ko
  NM      .tmp_vmlinux1.syms
  KSYMS   .tmp_vmlinux1.kallsyms.S
  AS      .tmp_vmlinux1.kallsyms.o
  LD      .tmp_vmlinux2
  NM      .tmp_vmlinux2.syms
  KSYMS   .tmp_vmlinux2.kallsyms.S
  AS      .tmp_vmlinux2.kallsyms.o
  LD      vmlinux.unstripped
  NM      System.map
  SORTTAB vmlinux.unstripped
  RSTRIP  vmlinux
  GEN     modules.builtin.ranges
  CC      arch/x86/boot/version.o
  OBJCOPY arch/x86/boot/compressed/vmlinux.bin
  RELOCS  arch/x86/boot/compressed/vmlinux.relocs
  VOFFSET arch/x86/boot/compressed/../voffset.h
  CC      arch/x86/boot/compressed/misc.o
  CC      arch/x86/boot/compressed/kaslr.o
  GZIP    arch/x86/boot/compressed/vmlinux.bin.gz
  MKPIGGY arch/x86/boot/compressed/piggy.S
  AS      arch/x86/boot/compressed/piggy.o
  LD      arch/x86/boot/compressed/vmlinux
  ZOFFSET arch/x86/boot/zoffset.h
  OBJCOPY arch/x86/boot/vmlinux.bin
  AS      arch/x86/boot/header.o
  LD      arch/x86/boot/setup.elf
  OBJCOPY arch/x86/boot/setup.bin
  BUILD   arch/x86/boot/bzImage
Kernel: arch/x86/boot/bzImage is ready  (#545)
Building the tree before the patch
make[1]: Entering directory '/home/nipa/net/wt-0/build_32bit'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/net/wt-0/build_32bit'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
  CALL    ../scripts/checksyscalls.sh
  CHK     kernel/kheaders_data.tar.xz
  CC [M]  drivers/net/ethernet/intel/idpf/idpf_lib.o
  LD [M]  drivers/net/ethernet/intel/idpf/idpf.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#545)
  CC [M]  drivers/net/ethernet/intel/idpf/idpf.mod.o
  LD [M]  drivers/net/ethernet/intel/idpf/idpf.ko
Building the tree with the patch
make[1]: Entering directory '/home/nipa/net/wt-0/build_32bit'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/net/wt-0/build_32bit'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
  CALL    ../scripts/checksyscalls.sh
  CHK     kernel/kheaders_data.tar.xz
  CC [M]  drivers/net/ethernet/intel/idpf/idpf_lib.o
  LD [M]  drivers/net/ethernet/intel/idpf/idpf.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#545)
  CC [M]  drivers/net/ethernet/intel/idpf/idpf.mod.o
  LD [M]  drivers/net/ethernet/intel/idpf/idpf.ko