Using -Oline -j 96 W=1 redirect to /tmp/tmp.I0OA1q59qS and /tmp/tmp.avgA9kHm8S
LLVM=1 cc="ccache clang"
clang version 21.1.7 (Fedora 21.1.7-1.fc43)
Tree base:
956f569c90ab ("Merge branch 'rust-net-replace-kernel-c_str-with-c-strings'")
Baseline building the tree
make[1]: Entering directory '/srv/nipa-poller/net-next/wt-0/build_clang'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/srv/nipa-poller/net-next/wt-0/build_clang'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
  DESCEND objtool
  CALL    ../scripts/checksyscalls.sh
  INSTALL libsubcmd_headers
  CC      net/ipv4/route.o
  CC [M]  drivers/net/phy/mediatek/mtk-ge-soc.o
  CC [M]  net/rds/af_rds.o
  CC [M]  net/rds/bind.o
  CC [M]  net/rds/cong.o
  CC [M]  net/rds/connection.o
  CC [M]  net/rds/info.o
  CC [M]  net/rds/message.o
  CC [M]  net/rds/recv.o
  CC [M]  net/rds/send.o
  CC [M]  net/rds/stats.o
  CC [M]  net/rds/sysctl.o
  CC [M]  net/rds/threads.o
  CC [M]  net/rds/transport.o
  CC [M]  net/rds/loop.o
  CC [M]  net/rds/page.o
  CC [M]  net/rds/rdma.o
  CC [M]  net/rds/rdma_transport.o
  CC [M]  net/rds/ib.o
  CC [M]  net/rds/ib_cm.o
  CC [M]  net/rds/ib_recv.o
  CC [M]  net/rds/ib_ring.o
  CC [M]  net/rds/ib_send.o
  CC [M]  net/rds/ib_stats.o
  CC [M]  net/rds/ib_sysctl.o
  CC [M]  net/rds/ib_rdma.o
  CC [M]  net/rds/ib_frmr.o
  CC [M]  net/rds/tcp.o
  CC [M]  net/rds/tcp_connect.o
  CC [M]  net/rds/tcp_listen.o
  CC [M]  net/rds/tcp_recv.o
  CC [M]  net/rds/tcp_send.o
  CC [M]  net/rds/tcp_stats.o
  LD [M]  net/rds/rds.o
  LD [M]  net/rds/rds_rdma.o
  LD [M]  net/rds/rds_tcp.o
  CC [M]  drivers/net/ethernet/marvell/prestera/prestera_pci.o
  CC      net/ipv4/udp_offload.o
  AR      net/ipv4/built-in.a
  AR      net/built-in.a
  AR      built-in.a
  AR      vmlinux.a
  LD      vmlinux.o
  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
  CC [M]  drivers/net/phy/mediatek/mtk-ge-soc.mod.o
  GEN     modules.builtin.modinfo
  GEN     modules.builtin
  CC [M]  drivers/net/ethernet/marvell/prestera/prestera_pci.mod.o
  OBJCOPY vmlinux
  CC [M]  net/rds/rds.mod.o
  CC [M]  net/rds/rds_rdma.mod.o
  CC [M]  net/rds/rds_tcp.mod.o
  LD [M]  drivers/net/phy/mediatek/mtk-ge-soc.ko
  LD [M]  drivers/net/ethernet/marvell/prestera/prestera_pci.ko
  LD [M]  net/rds/rds.ko
  LD [M]  net/rds/rds_rdma.ko
  LD [M]  net/rds/rds_tcp.ko
  GEN     modules.builtin.ranges
  CC      arch/x86/boot/version.o
  OBJCOPY arch/x86/boot/compressed/vmlinux.bin
  RELOCS  arch/x86/boot/compressed/vmlinux.relocs
  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
  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  (#1027)
Building the tree before the patch
make[1]: Entering directory '/srv/nipa-poller/net-next/wt-0/build_clang'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/srv/nipa-poller/net-next/wt-0/build_clang'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
  DESCEND objtool
  CALL    ../scripts/checksyscalls.sh
  INSTALL libsubcmd_headers
  CC      net/ipv4/udp_offload.o
  AR      net/ipv4/built-in.a
  AR      net/built-in.a
  AR      built-in.a
  AR      vmlinux.a
  LD      vmlinux.o
  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
  GEN     modules.builtin.modinfo
  GEN     modules.builtin
  OBJCOPY 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
  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
  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  (#1028)
Building the tree with the patch
make[1]: Entering directory '/srv/nipa-poller/net-next/wt-0/build_clang'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/srv/nipa-poller/net-next/wt-0/build_clang'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
  DESCEND objtool
  CALL    ../scripts/checksyscalls.sh
  INSTALL libsubcmd_headers
  CC      net/ipv4/udp_offload.o
  AR      net/ipv4/built-in.a
  AR      net/built-in.a
  AR      built-in.a
  AR      vmlinux.a
  LD      vmlinux.o
  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
  GEN     modules.builtin.modinfo
  GEN     modules.builtin
  OBJCOPY 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
  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
  LD      arch/x86/boot/setup.elf
  OBJCOPY arch/x86/boot/vmlinux.bin
  OBJCOPY arch/x86/boot/setup.bin
  BUILD   arch/x86/boot/bzImage
Kernel: arch/x86/boot/bzImage is ready  (#1029)