[yocto] "trap: 80: SIGHUP: bad trap" comes up when building core-image-sato.

[Biao]

I got an ERROR when building the core-image-sato.


branch is danny-8.0



Build Configuration:
BB_VERSION        = "1.17.1"
BUILD_SYS         = "x86_64-linux"
NATIVELSBSTRING   = "Ubuntu-10.04"
TARGET_SYS        = "x86_64-poky-linux"
MACHINE           = "qemux86-64"
DISTRO            = "poky"
DISTRO_VERSION    = "1.3+snapshot-20130307"
TUNE_FEATURES     = "m64"
TARGET_FPU        = ""
meta              
meta-yocto        
meta-yocto-bsp    = "danny-8.0:6663b79452bcdd95fc69e1ec853baae6c5297ab2"


NOTE: Resolving any missing task queue dependencies
NOTE: Preparing runqueue
NOTE: Executing SetScene Tasks
NOTE: Executing RunQueue Tasks
NOTE: validating kernel config, see log.do_kernel_configcheck for details
WARNING: QA Issue: rpm: Files/directories were installed but not shipped
  /etc
  /etc/rcS.d
  /etc/rcS.d/S98run-postinsts
ERROR: Function failed: do_configure (see /home/zb/mnt/building/yocto/mybuild/tmp/work/x86_64-poky-linux/busybox/1.20.2-r5/temp/log.do_configure.15097 for further information)
ERROR: Logfile of failure stored in: /home/zb/mnt/building/yocto/mybuild/tmp/work/x86_64-poky-linux/busybox/1.20.2-r5/temp/log.do_configure.15097
Log data follows:
| DEBUG: Executing python function sysroot_cleansstate
| DEBUG: Python function sysroot_cleansstate finished
| DEBUG: Executing shell function do_configure
| trap: 80: SIGHUP: bad trap
| ERROR: Function failed: do_configure (see /home/zb/mnt/building/yocto/mybuild/tmp/work/x86_64-poky-linux/busybox/1.20.2-r5/temp/log.do_configure.15097 for further information)
ERROR: Task 1217 (/mnt/working/yocto/poky/meta/recipes-core/busybox/busybox_1.20.2.bb, do_configure) failed with exit code '1'
NOTE: Tasks Summary: Attempted 3729 tasks of which 1320 didn't need to be rerun and 1 failed.
Waiting for 0 running tasks to finish:


Summary: 1 task failed:
  /mnt/working/yocto/poky/meta/recipes-core/busybox/busybox_1.20.2.bb, do_configure
Summary: There was 1 WARNING message shown.
Summary: There was 1 ERROR message shown, returning a non-zero exit code.


1. What the problem might be?
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