failed to run ["make" "bzImage" "-j" "64" "CC=/syzkaller/gcc/bin/gcc"]: exit status 2
scripts/kconfig/conf  --syncconfig Kconfig
  DESCEND  objtool
  CALL    scripts/checksyscalls.sh
  CHK     include/generated/compile.h
  CC      net/core/ethtool.o
  GZIP    kernel/config_data.gz
  CC      net/rds/rdma_transport.o
  CC      net/rds/ib.o
  CC      net/rds/ib_cm.o
  CC      net/rds/ib_recv.o
  CC      net/rds/ib_ring.o
  CC      net/rds/ib_send.o
  CC      net/rds/ib_stats.o
  CC      net/rds/ib_sysctl.o
  CC      net/rds/ib_rdma.o
  CC      net/rds/ib_fmr.o
  CC      net/rds/ib_frmr.o
  AR      net/rds/built-in.a
net/core/ethtool.c: In function ‘dev_ethtool’:
net/core/ethtool.c:2873:1: warning: the frame size of 3408 bytes is larger than 2048 bytes [-Wframe-larger-than=]
 }
 ^
  AR      net/core/built-in.a
  AR      net/built-in.a
  GEN     .version
  CHK     include/generated/compile.h
  UPD     include/generated/compile.h
  CC      init/version.o
  AR      init/built-in.a
  AR      built-in.a
  LD      vmlinux.o
net/rds/ib.o:(.data..percpu..shared_aligned+0x0): multiple definition of `rds_ib_stats'
net/rds/rdma_transport.o:(.data..percpu..shared_aligned+0x0): first defined here
net/rds/ib_cm.o:(.data..percpu..shared_aligned+0x0): multiple definition of `rds_ib_stats'
net/rds/rdma_transport.o:/syzkaller/managers/upstream-net-this-kasan-gce/kernel/net/rds/rdma_transport.c:284: first defined here
net/rds/ib_recv.o:(.data..percpu..shared_aligned+0x0): multiple definition of `rds_ib_stats'
net/rds/rdma_transport.o:/syzkaller/managers/upstream-net-this-kasan-gce/kernel/net/rds/rdma_transport.c:284: first defined here
net/rds/ib_ring.o:(.data..percpu..shared_aligned+0x0): multiple definition of `rds_ib_stats'
net/rds/rdma_transport.o:/syzkaller/managers/upstream-net-this-kasan-gce/kernel/net/rds/rdma_transport.c:284: first defined here
net/rds/ib_send.o:(.data..percpu..shared_aligned+0x0): multiple definition of `rds_ib_stats'
net/rds/rdma_transport.o:/syzkaller/managers/upstream-net-this-kasan-gce/kernel/net/rds/rdma_transport.c:284: first defined here
net/rds/ib_stats.o:(.data..percpu..shared_aligned+0x0): multiple definition of `rds_ib_stats'
net/rds/rdma_transport.o:/syzkaller/managers/upstream-net-this-kasan-gce/kernel/net/rds/rdma_transport.c:284: first defined here
net/rds/ib_sysctl.o:(.data..percpu..shared_aligned+0x0): multiple definition of `rds_ib_stats'
net/rds/rdma_transport.o:/syzkaller/managers/upstream-net-this-kasan-gce/kernel/net/rds/rdma_transport.c:284: first defined here
net/rds/ib_rdma.o:(.data..percpu..shared_aligned+0x0): multiple definition of `rds_ib_stats'
net/rds/rdma_transport.o:/syzkaller/managers/upstream-net-this-kasan-gce/kernel/net/rds/rdma_transport.c:284: first defined here
net/rds/ib_fmr.o:(.data..percpu..shared_aligned+0x0): multiple definition of `rds_ib_stats'
net/rds/rdma_transport.o:/syzkaller/managers/upstream-net-this-kasan-gce/kernel/net/rds/rdma_transport.c:284: first defined here
net/rds/ib_frmr.o:(.data..percpu..shared_aligned+0x0): multiple definition of `rds_ib_stats'
net/rds/rdma_transport.o:/syzkaller/managers/upstream-net-this-kasan-gce/kernel/net/rds/rdma_transport.c:284: first defined here
Makefile:1030: recipe for target 'vmlinux' failed
make: *** [vmlinux] Error 1