Using -Oline -j 72 W=1 redirect to /tmp/tmp.o6Bd1NKOuw and /tmp/tmp.M3Dpp33UzD
LLVM=1 cc=clang
clang version 18.1.8 (Fedora 18.1.8-1.fc40)
Tree base:
a747e02430df ("ipv6: avoid possible NULL deref in modify_prefix_route()")
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
  GEN     lib/tests/module/test_kallsyms_a.c
  GEN     lib/tests/module/test_kallsyms_b.c
  GEN     lib/tests/module/test_kallsyms_c.c
  GEN     lib/tests/module/test_kallsyms_d.c
  CHK     kernel/kheaders_data.tar.xz
  CC [M]  lib/tests/module/test_kallsyms_b.o
  CC [M]  lib/tests/module/test_kallsyms_a.o
  CC [M]  lib/tests/module/test_kallsyms_c.o
  CC [M]  lib/tests/module/test_kallsyms_d.o
  CC [M]  net/can/j1939/transport.o
  LD [M]  net/can/j1939/can-j1939.o
  CC [M]  drivers/net/can/sun4i_can.o
  CC [M]  drivers/net/can/dev/dev.o
  CC [M]  drivers/net/phy/micrel.o
  LD [M]  drivers/net/can/dev/can-dev.o
  CC [M]  drivers/net/can/usb/ems_usb.o
  CC [M]  drivers/net/can/sja1000/sja1000.o
  CC [M]  drivers/net/can/ifi_canfd/ifi_canfd.o
  CC [M]  drivers/net/can/spi/hi311x.o
  CC [M]  drivers/net/can/usb/f81604.o
  CC [M]  drivers/net/can/c_can/c_can_main.o
  CC [M]  drivers/net/can/usb/gs_usb.o
  LD [M]  drivers/net/can/c_can/c_can.o
  CC [M]  drivers/net/can/spi/mcp251xfd/mcp251xfd-tef.o
  LD [M]  drivers/net/can/spi/mcp251xfd/mcp251xfd.o
  CC [M]  drivers/net/can/m_can/m_can.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#1476)
  LD [M]  lib/tests/module/test_kallsyms_a.ko
  LD [M]  lib/tests/module/test_kallsyms_b.ko
  LD [M]  lib/tests/module/test_kallsyms_c.ko
  LD [M]  lib/tests/module/test_kallsyms_d.ko
  CC [M]  drivers/net/phy/micrel.mod.o
  CC [M]  drivers/net/can/dev/can-dev.mod.o
  CC [M]  drivers/net/can/spi/mcp251xfd/mcp251xfd.mod.o
  CC [M]  drivers/net/can/usb/ems_usb.mod.o
  CC [M]  drivers/net/can/usb/f81604.mod.o
  CC [M]  drivers/net/can/usb/gs_usb.mod.o
  CC [M]  drivers/net/can/c_can/c_can.mod.o
  CC [M]  drivers/net/can/ifi_canfd/ifi_canfd.mod.o
  CC [M]  drivers/net/can/m_can/m_can.mod.o
  CC [M]  drivers/net/can/sja1000/sja1000.mod.o
  CC [M]  drivers/net/can/spi/hi311x.mod.o
  CC [M]  drivers/net/can/sun4i_can.mod.o
  LD [M]  drivers/net/phy/micrel.ko
  LD [M]  drivers/net/can/dev/can-dev.ko
  LD [M]  drivers/net/can/spi/mcp251xfd/mcp251xfd.ko
  LD [M]  drivers/net/can/spi/hi311x.ko
  LD [M]  drivers/net/can/usb/ems_usb.ko
  LD [M]  drivers/net/can/usb/f81604.ko
  LD [M]  drivers/net/can/usb/gs_usb.ko
  LD [M]  drivers/net/can/c_can/c_can.ko
  LD [M]  drivers/net/can/ifi_canfd/ifi_canfd.ko
  LD [M]  drivers/net/can/m_can/m_can.ko
  LD [M]  drivers/net/can/sja1000/sja1000.ko
  LD [M]  drivers/net/can/sun4i_can.ko
  CC [M]  net/can/j1939/can-j1939.mod.o
  LD [M]  net/can/j1939/can-j1939.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
  GEN     lib/tests/module/test_kallsyms_a.c
  GEN     lib/tests/module/test_kallsyms_b.c
  GEN     lib/tests/module/test_kallsyms_c.c
  GEN     lib/tests/module/test_kallsyms_d.c
  CHK     kernel/kheaders_data.tar.xz
  CC [M]  lib/tests/module/test_kallsyms_b.o
  CC [M]  lib/tests/module/test_kallsyms_a.o
  CC [M]  lib/tests/module/test_kallsyms_c.o
  CC [M]  lib/tests/module/test_kallsyms_d.o
  CC [M]  drivers/net/phy/micrel.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#1476)
  LD [M]  lib/tests/module/test_kallsyms_a.ko
  LD [M]  lib/tests/module/test_kallsyms_b.ko
  LD [M]  lib/tests/module/test_kallsyms_c.ko
  LD [M]  lib/tests/module/test_kallsyms_d.ko
  CC [M]  drivers/net/phy/micrel.mod.o
  LD [M]  drivers/net/phy/micrel.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
  GEN     lib/tests/module/test_kallsyms_a.c
  GEN     lib/tests/module/test_kallsyms_b.c
  GEN     lib/tests/module/test_kallsyms_c.c
  GEN     lib/tests/module/test_kallsyms_d.c
  CHK     kernel/kheaders_data.tar.xz
  CC [M]  lib/tests/module/test_kallsyms_a.o
  CC [M]  lib/tests/module/test_kallsyms_b.o
  CC [M]  lib/tests/module/test_kallsyms_c.o
  CC [M]  lib/tests/module/test_kallsyms_d.o
  CC [M]  drivers/net/phy/micrel.o
  MODPOST Module.symvers
Kernel: arch/x86/boot/bzImage is ready  (#1476)
  LD [M]  lib/tests/module/test_kallsyms_a.ko
  LD [M]  lib/tests/module/test_kallsyms_b.ko
  LD [M]  lib/tests/module/test_kallsyms_c.ko
  LD [M]  lib/tests/module/test_kallsyms_d.ko
  CC [M]  drivers/net/phy/micrel.mod.o
  LD [M]  drivers/net/phy/micrel.ko