Bug#779238: lldpd: LLDPd daemon freezes

2015-03-02 Thread Kiousis Alexandros
Hi again, comments inline. On 02/27/2015 12:16 AM, Vincent Bernat wrote: ❦ 26 février 2015 21:30 +0200, Kiousis Alexandros : This happens when there is a tap interface that is down from the VM side. So when LLDPd can't send the packets to the interface it writes them to the buffer, that's w

Bug#779238: lldpd: LLDPd daemon freezes

2015-02-26 Thread Vincent Bernat
❦ 26 février 2015 21:30 +0200, Kiousis Alexandros  : > This happens when there is a tap interface that is down from the VM > side. So when LLDPd can't send the packets to the interface it writes > them to the buffer, that's where the log is from. After a while the > buffer space fills up and when

Bug#779238: lldpd: LLDPd daemon freezes

2015-02-26 Thread Kiousis Alexandros
So i guess we figured it out. This happens when there is a tap interface that is down from the VM side. So when LLDPd can't send the packets to the interface it writes them to the buffer, that's where the log is from. After a while the buffer space fills up and when lldpd can't write anymore,

Bug#779238: lldpd: LLDPd daemon freezes

2015-02-26 Thread Vincent Bernat
❦ 26 février 2015 14:32 +0200, Kiousis Alexandros  : > lldpd 17754 _lldpd 32u pack 434712919 0t0 ALL > type=SOCK_RAW So, it is blocking on the tap device. Maybe the VM on the other side has been rebooted. Could you check if there is anything odd with "ss --info --extende

Bug#779238: lldpd: LLDPd daemon freezes

2015-02-26 Thread Kiousis Alexandros
This is the output: # lsof -n -p 17752 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME lldpd 17752 root cwdDIR 254,0 4096 2 / lldpd 17752 root rtdDIR 254,0 4096 2 / lldpd 17752 root txtREG

Bug#779238: lldpd: LLDPd daemon freezes

2015-02-26 Thread Vincent Bernat
❦ 26 février 2015 12:36 +0200, Kiousis Alexandros  : > This is what i get now from a stuck daemon: > > # ps aux | grep lldp | grep -v grep > root 17752 0.0 0.0 46468 1432 ?SNs Feb25 0:11 > /usr/sbin/lldpd -I eth*,tap* > _lldpd 17754 0.0 0.0 46468 1080 ?SFeb25

Bug#779238: lldpd: LLDPd daemon freezes

2015-02-26 Thread Kiousis Alexandros
On 02/25/2015 09:20 PM, Vincent Bernat wrote: What kind of VM is that? It's odd to run out of space on those tap interfaces. This can be the cause of lldpd hanging since writing to the devices is done synchronously while the remaining of the daemon is asynchronous. Just to be clear this doesn't

Bug#779238: lldpd: LLDPd daemon freezes

2015-02-25 Thread Vincent Bernat
❦ 25 février 2015 20:34 +0200, Alex Kiousis  : > We use lldp to get information about the parents of our hosts (about > 100 nodes). Some time ago we switched to also broadcasting lldp > information to the tap interfaces so the vms running on the machine > can get that information. Since then lldp

Bug#779238: lldpd: LLDPd daemon freezes

2015-02-25 Thread Alex Kiousis
Package: lldpd Version: 0.5.7-2 Severity: normal Dear Maintainer, We use lldp to get information about the parents of our hosts (about 100 nodes). Some time ago we switched to also broadcasting lldp information to the tap interfaces so the vms running on the machine can get that information. Si