Using -Oline -j 72 W=1 C=1 redirect to /tmp/tmp.72UpMwhHKm and /tmp/tmp.2ZGLBARUda CC=ccache gcc gcc (GCC) 15.1.1 20250521 (Red Hat 15.1.1-2) Tree base: ba1e9421cf1a ("net/smc: fix one NULL pointer dereference in smc_ib_is_sg_need_sync()") Baseline building the tree make[1]: Entering directory '/home/nipa/net/wt-0/build_allmodconfig_warn' GEN Makefile # # configuration written to .config # make[1]: Leaving directory '/home/nipa/net/wt-0/build_allmodconfig_warn' SYNC include/config/auto.conf GEN Makefile GEN Makefile DESCEND objtool INSTALL libsubcmd_headers CALL ../scripts/checksyscalls.sh CC [M] net/netrom/af_netrom.o CHECK ../net/netrom/af_netrom.c LD [M] net/netrom/netrom.o CC [M] drivers/net/phy/mscc/mscc_ptp.o CHECK ../drivers/net/phy/mscc/mscc_ptp.c LD [M] drivers/net/phy/mscc/mscc.o MODPOST Module.symvers Kernel: arch/x86/boot/bzImage is ready (#1352) CC [M] drivers/net/phy/mscc/mscc.mod.o CC [M] net/netrom/netrom.mod.o LD [M] drivers/net/phy/mscc/mscc.ko LD [M] net/netrom/netrom.ko Building the tree before the patch make[1]: Entering directory '/home/nipa/net/wt-0/build_allmodconfig_warn' GEN Makefile # # configuration written to .config # make[1]: Leaving directory '/home/nipa/net/wt-0/build_allmodconfig_warn' SYNC include/config/auto.conf GEN Makefile GEN Makefile DESCEND objtool INSTALL libsubcmd_headers CALL ../scripts/checksyscalls.sh CC [M] drivers/net/phy/mscc/mscc_ptp.o CHECK ../drivers/net/phy/mscc/mscc_ptp.c LD [M] drivers/net/phy/mscc/mscc.o MODPOST Module.symvers Kernel: arch/x86/boot/bzImage is ready (#1352) CC [M] drivers/net/phy/mscc/mscc.mod.o LD [M] drivers/net/phy/mscc/mscc.ko Building the tree with the patch make[1]: Entering directory '/home/nipa/net/wt-0/build_allmodconfig_warn' GEN Makefile # # configuration written to .config # make[1]: Leaving directory '/home/nipa/net/wt-0/build_allmodconfig_warn' SYNC include/config/auto.conf GEN Makefile GEN Makefile DESCEND objtool INSTALL libsubcmd_headers CALL ../scripts/checksyscalls.sh CC [M] drivers/net/phy/mscc/mscc_ptp.o CHECK ../drivers/net/phy/mscc/mscc_ptp.c LD [M] drivers/net/phy/mscc/mscc.o MODPOST Module.symvers Kernel: arch/x86/boot/bzImage is ready (#1352) CC [M] drivers/net/phy/mscc/mscc.mod.o LD [M] drivers/net/phy/mscc/mscc.ko