Author: sudhanshukumar22 <sudhanshu.kumar@broadcom.com>
Date: Tue Oct 15 02:31:20 2019 -0700
lib: changes for making snmp socket non-blocking
Description: The changes have been done to make the snmp socket
non-blocking before calling snmp_read()
FRR Pull request: https://github.com/FRRouting/frr/pull/5134
Problem Description/Summary :
vtysh hangs on first try to enter after a reboot with BGP dynamic peers
Expected Behavior :
VTYSH should not hang.
When we debug more into bgpd docker by doing gdb on its threads, we find the below thread of bgpd, which is causing the issue.
Thread 1 (Thread 0x7f1e1ec46d40 (LWP 47)):
0x00007f1e1d762593 in recvfrom () from /lib/x86_64-linux-gnu/libpthread.so.0
0x00007f1e1aadd09b in netsnmp_tcpbase_recv () from /usr/lib/x86_64-linux-gnu/libnetsnmp.so.30
0x00007f1e1aad9617 in netsnmp_transport_recv () from /usr/lib/x86_64-linux-gnu/libnetsnmp.so.30
0x00007f1e1aab2c07 in _sess_read () from /usr/lib/x86_64-linux-gnu/libnetsnmp.so.30
0x00007f1e1aab3a29 in snmp_sess_read2 () from /usr/lib/x86_64-linux-gnu/libnetsnmp.so.30
0x00007f1e1aab3a7b in snmp_read2 () from /usr/lib/x86_64-linux-gnu/libnetsnmp.so.30
0x00007f1e1aab3acf in snmp_read () from /usr/lib/x86_64-linux-gnu/libnetsnmp.so.30
0x00007f1e1b44d7ec in agentx_read (t=0x7fffa75f0080) at lib/agentx.c:63
0x00007f1e1e7d6451 in thread_call (thread=0x7fffa75f0080) at lib/thread.c:1620
0x00007f1e1e770699 in frr_run (master=0x559396ea60f0) at lib/libfrr.c:1011
0x0000559395b4d953 in main (argc=5, argv=0x7fffa75f02b8) at bgpd/bgp_main.c:492
(gdb) bt
0x00007f830c89d210 in __read_nocancel () from /lib/x86_64-linux-gnu/libpthread.so.0
0x000056450e1e8238 in vtysh_client_run (vclient=0x56450e4a8b40 <vtysh_client+24768>, line=0x56450e21add0 enable, callback=0x0, cbarg=0x0) at vtysh/vtysh.c:216
0x000056450e1e8c6b in vtysh_client_run_all (head_client=0x56450e4a8b40 <vtysh_client+24768>, line=0x56450e21add0 enable, continue_on_err=0, callback=0x0, cbarg=0x0) at vtysh/vtysh.c:356
0x000056450e1e8ddb in vtysh_client_execute (head_client=0x56450e4a8b40 <vtysh_client+24768>, line=0x56450e21add0 enable) at vtysh/vtysh.c:393
0x000056450e1e9c82 in vtysh_execute_func (line=0x56450e21add0 enable, pager=0) at vtysh/vtysh.c:598
0x000056450e1e9dee in vtysh_execute_no_pager (line=0x56450e21add0 enable) at vtysh/vtysh.c:619
0x000056450e1f7d48 in vtysh_read_file (confp=0x56451000a9d0, top_cfg=1) at vtysh/vtysh_config.c:494
0x000056450e1f7ef2 in vtysh_read_config (config_default_dir=0x56450e4edc20 <frr_config> /etc/frr/frr.conf, top_cfg=1) at vtysh/vtysh_config.c:522
0x000056450e1e5de4 in vtysh_apply_top_level_config () at vtysh/vtysh_main.c:301
0x000056450e1e7842 in main (argc=2, argv=0x7ffc81e6f598, env=0x7ffc81e6f5b0) at vtysh/vtysh_main.c:692
The fix has been taken from the following link.
https://sourceforge.net/p/net-snmp/patches/1348/
* [sonic_platform]remove the handling of reset_sw_reset which indicates rebooted by software.
* [sonic_platform]Check "reset_sw_reset"
Also check reboot cause file "reset_sw_reset" which indicates the system was rebooted due to software requesting.
The owner of the generated files (/etc/frr/*.conf) by start.sh is root if it is a new file.
This will cause error when executing "copy running-config startup-config" in vtysh because of privilege issue.
* [FRR]: Use stg in a proper way.
Signed-off-by: wangshengjun <wangshengjun@asterfusion.com>
* [FRR]restore the detach status for frr submodule after finish patching
Signed-off-by: wangshengjun <wangshengjun@asterfusion.com>
* [FRR]use the 'FRR_VERSION' exported from 'rule/frr.mk'.
Signed-off-by: wangshengjun <wangshengjun@asterfusion.com>
From 5.1 version of PyYAML python module, yaml.load() API is deprecated. Code should be compatible to support both the versions, else error/warning messages are seen like below,
2019-07-02 08:25:35,284 – INFO: [D1] /usr/local/lib/python2.7/dist-packages/sonic_device_util.py:44: YAMLLoadWarning: calling yaml.load() without Loader=... is deprecated, as the default Loader is unsafe. Please read https://msg.pyyaml.org/load for full details.
In teamd v1.28, the port can only be enabled if sync bit is set
in recveived LACPDU from partner by the following commit
"teamd: lacp: update port state according to partner's sync bit"
(54f137c105)
However, lacp fallback feature needs to enable port even if partner
LACPDU is not received within a given period and fallback cfg is enabled.
To fix the lacp fallback breakage, we have to bypass the sync bit
check in lacp fallback mode.
Signed-off-by: Haiyang Zheng <haiyang.z@alibaba-inc.com>
* Makefile: ARM kernel support from sonic-linux-kernel
* Fix for multiarch build docker spawn
Platform: Install the DTB deb for the platform
Signed-off-by: Antony Rheneus <arheneus@marvell.com>
While doing CLI changes for SNMP configuration, few changes are made in backend to handle the modified CLI.
** Changes**
- "community" for "snmp trap" is also made as "configurable". snmpd_conf.j2 is modified to handle the same.
- Changed the snmp.yml file generation from postStartAction to preStartAction in docker_image_ctl.j2 specific to SNMP docker, to ensure that the snmp.yml is generated before sonic-cfggen generates the snmpd.conf.
- Changed to make the code common for management vrf and default vrf. Users can configure snmp trap and snmp listening IP for both management vrf and default vrf.
* Update driver and Add new platform API implementation for Inventec D6356
* Update Platform API (SFP)
* Update Platform API (QSFP)
* Update Platform API (FAN, THERMAL)
Signed-off-by: David Xiao <xiao.david@inventec.com>
*Currently get_firmware_version implementated by using chassis.get_firmware_version and chassis._component_name_list which are not supported in the latest sonic_platform_common, causing chassis broken. Update this part so that it aligns to the latest sonic_platform_common
*Support component API
The script sonic-gns3a.sh creates a GNS3 appliance flle, that points to a sonin-vs.img (SONiC Virtual Switch).
The appliance file (and sonic-vs.img file) can subsequently be imported into a GNS3 simulation environment.
Adjust the SDK makefiles so that it reflects the dependencies among libraries in SDK 4.3.2104.
This is a supplement of PR [Mellanox]Update SDK(4.3.2104), SAI-Implementation(1.15) and firmware 2162. It doesn't impact the sonic-mellanox.bin image but makes the future SDK-integration easier.
- after reloading minigraph, write latest version string in the DB.
- if old config_db.json file exists, use it and migrate to latest version.
- only reload minigraph when config_db.json doesn't exist and minigraph
exists.
Signed-off-by: Ying Xie <ying.xie@microsoft.com>
