Using -Oline -j 72 W=1 redirect to /tmp/tmp.th9rxwvXZP and /tmp/tmp.bfE6X7pAUP
CC=ccache gcc
gcc (GCC) 15.1.1 20250521 (Red Hat 15.1.1-2)
Tree base:
ae633388cae3 ("pptp: fix pptp_xmit() error path")
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/stmicro/stmmac/dwmac-thead.o
  CC [M]  drivers/net/ethernet/stmicro/stmmac/dwmac-rk.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#1211)
  CC [M]  drivers/net/ethernet/stmicro/stmmac/dwmac-thead.mod.o
  CC [M]  drivers/net/ethernet/stmicro/stmmac/dwmac-rk.mod.o
  LD [M]  drivers/net/ethernet/stmicro/stmmac/dwmac-rk.ko
  LD [M]  drivers/net/ethernet/stmicro/stmmac/dwmac-thead.ko
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/stmicro/stmmac/dwmac-rk.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#1211)
  CC [M]  drivers/net/ethernet/stmicro/stmmac/dwmac-rk.mod.o
  LD [M]  drivers/net/ethernet/stmicro/stmmac/dwmac-rk.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/stmicro/stmmac/dwmac-rk.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#1211)
  CC [M]  drivers/net/ethernet/stmicro/stmmac/dwmac-rk.mod.o
  LD [M]  drivers/net/ethernet/stmicro/stmmac/dwmac-rk.ko