[Olsr-dev] OLSRv2 Segfault
Henning Rogge
(spam-protected)
Tue Jan 7 14:25:31 CET 2014
You are just compiling the olsrd2 package?
Maybe you can run a make clean and try again?
Henning Rogge
On Tue, Jan 7, 2014 at 10:59 AM, Syed Salman Haider Rizvi <
(spam-protected)> wrote:
> Hi Henning Sir ,
>
> I m getting following error while cross compiling for my openwrt
> attitude adjustment . Log is given below
>
> [ 6%] Built target oonf_common
> make[6]: Entering directory
> `/home/salman/openwrt/attitude_adjustment/build_dir/target-mips_r2_uClibc-0.9.33.2/oonf-api-2013.05-17'
> make[6]: Leaving directory
> `/home/salman/openwrt/attitude_adjustment/build_dir/target-mips_r2_uClibc-0.9.33.2/oonf-api-2013.05-17'
> make[6]: Entering directory
> `/home/salman/openwrt/attitude_adjustment/build_dir/target-mips_r2_uClibc-0.9.33.2/oonf-api-2013.05-17'
> Linking C static library ../../liboonf_static_common.a
> /home/salman/openwrt/attitude_adjustment/staging_dir/toolchain-mips_r2_gcc-4.6-linaro_uClibc-0.9.33.2/bin/mips-openwrt-linux-uclibc-ar:
> two different operation options specified
> make[6]: *** [liboonf_static_common.a] Error 1
> make[6]: Leaving directory
> `/home/salman/openwrt/attitude_adjustment/build_dir/target-mips_r2_uClibc-0.9.33.2/oonf-api-2013.05-17'
> make[5]: *** [src-api/common/CMakeFiles/oonf_static_common.dir/all] Error 2
> make[5]: Leaving directory
> `/home/salman/openwrt/attitude_adjustment/build_dir/target-mips_r2_uClibc-0.9.33.2/oonf-api-2013.05-17'
> make[4]: *** [all] Error 2
> make[4]: Leaving directory
> `/home/salman/openwrt/attitude_adjustment/build_dir/target-mips_r2_uClibc-0.9.33.2/oonf-api-2013.05-17'
> make[3]: ***
> [/home/salman/openwrt/attitude_adjustment/build_dir/target-mips_r2_uClibc-0.9.33.2/oonf-api-2013.05-17/.built]
> Error 2
> make[3]: Leaving directory
> `/home/salman/openwrt/attitude_adjustment/package/oonf_api/openwrt/oonf-api'
> make[2]: *** [package/oonf_api/openwrt/oonf-api/compile] Error 2
> make[2]: Leaving directory `/home/salman/openwrt/attitude_adjustment'
> make[1]: ***
> [/home/salman/openwrt/attitude_adjustment/staging_dir/target-mips_r2_uClibc-0.9.33.2/stamp/.package_compile]
> Error 2
> make[1]: Leaving directory `/home/salman/openwrt/attitude_adjustment'
> make: *** [world] Error 2
>
> Please let me know if the problem is at my end , the last update oonf_api
> was working fine for me
>
> Thanks
>
>
>
> ------------------------------
> From: (spam-protected)
> Date: Mon, 30 Dec 2013 11:00:07 +0100
> Subject: Re: [Olsr-dev] OLSRv2 Segfault
> To: (spam-protected)
> CC: (spam-protected); (spam-protected)
>
>
> Thank you for the GDB log,
>
> it seems that the Hello generation fails... I have to look more closely
> into the problem when I am back at work next week, but I committed your
> patch as a hotfix until I know what the hell is going on.
>
> @Syed Salman Haider Rizvi:
> I have also added a patch to OLSRD2 that allows to switch off the
> linkspeed part of the ETT plugin, downgrading it to ETX. So you might also
> want to have a look into the most recent version.
>
> Henning Rogge
>
> On Mon, Dec 30, 2013 at 4:50 AM, Vigneswaran R <(spam-protected)>wrote:
>
> On 12/28/2013 12:17 AM, Henning Rogge wrote:
>
> Hi,
>
> thank you for the bugreport, I would like to dig a little bit deeper
> into this problem (maybe writing an automatic test-case afterwards).
>
> Can you post the whole stacktrace from GDB first? That would allow to
> identify if the error happens during the creation of a Hello or a TC.
>
>
> Please find the GDB log attached. Thanks.
>
> vignesh
>
>
> Henning Rogge
>
> On Fri, Dec 27, 2013 at 11:10 AM, Vigneswaran R <(spam-protected)>
> wrote:
>
> Hello,
>
> I am running olsrd2 on a few (qemu) virtual machines. On one of the virtual
> machines, olsrd2 segfaults within a few seconds. I am invoking OLSRd2 in
> the
> following manner,
>
> ./olsrd2 --set interface[eth0].bindto=10.0.0.0/8 --set
> interface[eth1].bindto=10.0.0.0/8 --set interface[eth2].bindto=10.0.0.0/8
>
> Traced the error using gdb to some extent. Please see the following patch
> for context.
>
> In general, addr_start->_block_end becomes NULL just before exiting from
> the
> do..while loop. However, in some cases, addr_start->_block_end becomes NULL
> before the do..while loop meeting the exit criteria (addr_end ==
> last_addr).
> So, the loop continues and trying to de-reference NULL pointer causing
> segfault.
>
> --- a/oonf_api/src-api/rfc5444/rfc5444_msg_generator.c 2013-12-19
> 18:27:48.471467295 +0530
> +++ b/oonf_api/src-api/rfc5444/rfc5444_msg_generator.c 2013-12-27
> 14:15:14.000000000 +0530
> @@ -1180,7 +1180,7 @@
> tlvblock_length[0] = (ptr - tlvblock_length - 2) >> 8;
> tlvblock_length[1] = (ptr - tlvblock_length - 2) & 255;
> addr_start = list_next_element(addr_end, _addr_node);
> - } while (addr_end != last_addr);
> + } while (addr_end != last_addr && addr_start->_block_end != NULL);
>
> /* store size of address(tlv) data */
> msg->_bin_addr_size = ptr - start;
>
>
> I am using the latest oonf_api (last commit:
> 2355db6a460abe10cc7096842b3b10686c68012c) and olsrd2 (last commit:
> 23051120419372a175ddb08fa8a3bb8d7d709f1e) repositories.
>
> The Interface details are,
>
> 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
> link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
> inet 127.0.0.1/8 scope host lo
> inet6 ::1/128 scope host
> valid_lft forever preferred_lft forever
> 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state
> UP qlen 1000
> link/ether de:ad:be:ef:5a:38 brd ff:ff:ff:ff:ff:ff
> inet 10.5.11.1/8 brd 10.255.255.255 scope global eth0
> inet6 fe80::dcad:beff:feef:5a38/64 scope link
> valid_lft forever preferred_lft forever
> 3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state
> UP qlen 1000
> link/ether de:ad:be:ef:0d:2f brd ff:ff:ff:ff:ff:ff
> inet 10.5.11.2/8 brd 10.255.255.255 scope global eth1
> inet6 fe80::dcad:beff:feef:d2f/64 scope link
> valid_lft forever preferred_lft forever
> 4: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state
> UP qlen 1000
> link/ether de:ad:be:ef:5a:39 brd ff:ff:ff:ff:ff:ff
> inet 10.5.11.3/8 brd 10.255.255.255 scope global eth2
> inet6 fe80::dcad:beff:feef:5a39/64 scope link
> valid_lft forever preferred_lft forever
>
>
> Regards,
> Vignesh
>
> --
> Olsr-dev mailing list
> (spam-protected)
> https://lists.olsr.org/mailman/listinfo/olsr-dev
>
>
>
>
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