[Bug 5648] New: udhcpc6 and ping6 : alignment trap

bugzilla at busybox.net bugzilla at busybox.net
Fri Nov 2 02:29:48 UTC 2012


https://bugs.busybox.net/show_bug.cgi?id=5648

           Summary: udhcpc6 and ping6 : alignment trap
           Product: Busybox
           Version: unspecified
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: critical
          Priority: P5
         Component: Networking
        AssignedTo: unassigned at busybox.net
        ReportedBy: redongjun at gmail.com
                CC: busybox-cvs at busybox.net
   Estimated Hours: 0.0


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

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