BUSYBOX: BusyBox v1.20.2 (2012-11-01 21:02:06 KST) multi-call binary. OS: Linux 192.168.177.233 2.6.18_pro500-davinci_evm-arm_v5t_le #1 PREEMPT Wed Oct 10 14:06:58 KST 2012 armv5tejl GNU/Linux SoC: TI DM365 (ARM926EJ-S rev 5 (v5l)) the traceroute is working, but the udhcpc6 and ping6 aren't working Alignment trap: udhcpc6 (749) PC=0x0003f7ac Instr=0xe586300c Address=0x001d0a85 FSR 0x801 Alignment trap: ping6 (756) PC=0x00030d38 Instr=0xe59c3004 Address=0xbefa781a FSR 0x001 traceroute to 2002:d3dd:51cd:e472:216:6cff:fe7b:3b38 (2002:d3dd:51cd:e472:216:6cff:fe7b:3b38), 30 hops max, 16 byte packets 1 2002:d3dd:51cd:e472:216:6cff:fe7b:3b38 (2002:d3dd:51cd:e472:216:6cff:fe7b:3b38) 0.240 ms 0.147 ms 0.143 ms After /proc/cpu/alignment set fixup(2), the ping6 is working but the udhcpc6 doesn't work udhcpc6 -i wlan0 -v Adapter index 8 MAC 00:16:6c:7b:3b:38 udhcpc6 (v1.20.2) started Executing /usr/share/udhcpc/default.script deconfig Entering listen mode: raw Opening raw socket on ifindex 8 Got raw socket fd 5 Created raw socket Adapter index 8 MAC 00:16:6c:7b:3b:38 Sending discover... Waiting on select... Adapter index 8 MAC 00:16:6c:7b:3b:38 Sending discover... Waiting on select... Adapter index 8 MAC 00:16:6c:7b:3b:38 Sending discover... Waiting on select... Adapter index 8 MAC 00:16:6c:7b:3b:38 Executing /usr/share/udhcpc/default.script leasefail /usr/share/udhcpc/default.script: line 7: /usr/share/udhcpc/sample.leasefail: No such file or directory /usr/share/udhcpc/default.script: line 7: exec: /usr/share/udhcpc/sample.leasefail: cannot execute: No such file or directory
It is impossible to find problem by absolute instruction address without have exactly the same binaries. You should use addr2line utility against busybox_unstripped binary, compiled with debug symbols (-g3 best of all). For example: addr2line -f -e busybox_unstripped 0x0415040 ping6_main .../busybox/networking/ping.c:882
udhcpc6 is not production-ready. It waits for someone to develop it further.
I don't think we'll get more info in this bug report.