Using -Oline -j 72 W=1 redirect to /tmp/tmp.jLS2X9D88U and /tmp/tmp.jf4EM0VNDk
LLVM=1 cc=clang
clang version 20.1.6 (Fedora 20.1.6-1.fc42)
Tree base:
5e95c0a3a55a ("netdevsim: fix UaF when counting Tx stats")
Baseline building the tree
make[1]: Entering directory '/home/nipa/net-next/wt-0/build_clang'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/net-next/wt-0/build_clang'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
  DESCEND objtool
  CALL    ../scripts/checksyscalls.sh
  INSTALL libsubcmd_headers
  CHK     kernel/kheaders_data.tar.xz
  CC [M]  drivers/net/ethernet/hisilicon/hns3/hns3_dcbnl.o
  CC [M]  drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_regs.o
  CC [M]  drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_cmd.o
  CC [M]  drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_devlink.o
  LD [M]  drivers/net/ethernet/hisilicon/hns3/hclge-common.o
  CC [M]  drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.o
  CC [M]  drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.o
  CC [M]  drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_ptp.o
  CC [M]  drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.o
  CC [M]  drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.o
  CC [M]  drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_regs.o
  CC [M]  drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.o
  CC [M]  drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_err.o
  CC [M]  drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.o
  CC [M]  drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.o
  CC [M]  drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.o
  CC [M]  drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.o
  LD [M]  drivers/net/ethernet/hisilicon/hns3/hclgevf.o
  CC      net/core/skbuff.o
  AR      net/core/built-in.a
  AR      net/built-in.a
  CC [M]  drivers/net/ethernet/hisilicon/hns3/hns3_enet.o
  LD [M]  drivers/net/ethernet/hisilicon/hns3/hns3.o
  CC [M]  drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.o
  LD [M]  drivers/net/ethernet/hisilicon/hns3/hclge.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
  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
  CC [M]  drivers/net/ethernet/hisilicon/hns3/hns3.mod.o
  CC [M]  drivers/net/ethernet/hisilicon/hns3/hclgevf.mod.o
  CC [M]  drivers/net/ethernet/hisilicon/hns3/hclge-common.mod.o
  CC [M]  drivers/net/ethernet/hisilicon/hns3/hclge.mod.o
  RELOCS  arch/x86/boot/compressed/vmlinux.relocs
  OBJCOPY arch/x86/boot/compressed/vmlinux.bin
  CC      arch/x86/boot/compressed/kaslr.o
  VOFFSET arch/x86/boot/compressed/../voffset.h
  CC      arch/x86/boot/compressed/misc.o
  LD [M]  drivers/net/ethernet/hisilicon/hns3/hns3.ko
  LD [M]  drivers/net/ethernet/hisilicon/hns3/hclgevf.ko
  LD [M]  drivers/net/ethernet/hisilicon/hns3/hclge-common.ko
  LD [M]  drivers/net/ethernet/hisilicon/hns3/hclge.ko
  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
  AS      arch/x86/boot/header.o
  OBJCOPY arch/x86/boot/vmlinux.bin
  LD      arch/x86/boot/setup.elf
  OBJCOPY arch/x86/boot/setup.bin
  BUILD   arch/x86/boot/bzImage
Kernel: arch/x86/boot/bzImage is ready  (#3383)
Building the tree before the patch
make[1]: Entering directory '/home/nipa/net-next/wt-0/build_clang'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/net-next/wt-0/build_clang'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
  DESCEND objtool
  CALL    ../scripts/checksyscalls.sh
  INSTALL libsubcmd_headers
  CHK     kernel/kheaders_data.tar.xz
  CC      net/core/skbuff.o
  AR      net/core/built-in.a
  AR      net/built-in.a
  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
  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
  RELOCS  arch/x86/boot/compressed/vmlinux.relocs
  OBJCOPY arch/x86/boot/compressed/vmlinux.bin
  CC      arch/x86/boot/compressed/kaslr.o
  VOFFSET arch/x86/boot/compressed/../voffset.h
  CC      arch/x86/boot/compressed/misc.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
  AS      arch/x86/boot/header.o
  OBJCOPY arch/x86/boot/vmlinux.bin
  LD      arch/x86/boot/setup.elf
  OBJCOPY arch/x86/boot/setup.bin
  BUILD   arch/x86/boot/bzImage
Kernel: arch/x86/boot/bzImage is ready  (#3384)
Building the tree with the patch
make[1]: Entering directory '/home/nipa/net-next/wt-0/build_clang'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/net-next/wt-0/build_clang'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
  DESCEND objtool
  CALL    ../scripts/checksyscalls.sh
  INSTALL libsubcmd_headers
  CHK     kernel/kheaders_data.tar.xz
  CC      net/core/skbuff.o
  AR      net/core/built-in.a
  AR      net/built-in.a
  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
  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
  RELOCS  arch/x86/boot/compressed/vmlinux.relocs
  OBJCOPY arch/x86/boot/compressed/vmlinux.bin
  CC      arch/x86/boot/compressed/kaslr.o
  VOFFSET arch/x86/boot/compressed/../voffset.h
  CC      arch/x86/boot/compressed/misc.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
  AS      arch/x86/boot/header.o
  OBJCOPY arch/x86/boot/vmlinux.bin
  LD      arch/x86/boot/setup.elf
  OBJCOPY arch/x86/boot/setup.bin
  BUILD   arch/x86/boot/bzImage
Kernel: arch/x86/boot/bzImage is ready  (#3385)