Hi all,
I have cross-compiled net-snmp 5.7.1 for a custom port of Linux 2.6.37
on an armv5tejl core (AM1808). I have encountered some alignment traps
in syslog after MIB-walking.
<snip>
daemon.info snmpd[1135]: NET-SNMP version 5.7.1
user.warn kernel: [ 172.182181] Alignment trap: snmpd (1135)
PC=0x000d3934 Instr=0xe1c4c0b4 Address=0xbeb48569 FSR 0x801
user.warn kernel: [ 172.192688] Alignment trap: snmpd (1135)
PC=0x000d3944 Instr=0xe58e0039 Address=0xbeb48571 FSR 0x813
user.warn kernel: [ 172.203176] Alignment trap: snmpd (1135)
PC=0x000d3950 Instr=0xe1c4c0b6 Address=0xbeb4856b FSR 0x813
user.warn kernel: [ 172.213656] Alignment trap: snmpd (1135)
PC=0x000d395c Instr=0xe58e6035 Address=0xbeb4856d FSR 0x801
user.warn kernel: [ 172.224144] Alignment trap: snmpd (1135)
PC=0x000d3960 Instr=0xe58e502d Address=0xbeb48565 FSR 0x813
</snip>
According to objdump, most of the traps seem to be triggered by an
unaligned access to stack memory in defaultrouter_linux.c:static int
_load(netsnmp_container *container). Has anyone else encountered this?
Is this a known issue or should I submit a patch?
I am using the following configuration:
./configure --host=arm-arago-linux-gnueabi --build=`./config.guess`
--disable-embedded-perl --without-nl --enable-ipv6\
--disable-manuals --with-defaults --with-sys-contact="supp...@myco.com"\
--with-mib-modules="ucd-snmp/diskio" --without-perl-modules
--disable-static --disable-shared\
--disable-snmpv1 --disable-scripts --disable-applications --prefix="/"
Thanks,
-- Tyler
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