Re: Fwd: pvxs Access/list problem

[Michael Davidsaver via Tech-talk <tech-talk@aps.anl.gov>]

On 11/11/25 8:47 AM, Heinz Junkes (FHI) via Tech-talk wrote:

It must have something to do with clock synchronization/NTP (that's my guess).

Immediately after booting, when NTP is not yet synchronized, pvlist and pvget PV work, for example.

Can you check to see if the RTEMS network configuration changes?

Also, could you set the $PVXS_LOG environment variable in RTEMS prior to IOC startup?  Before the registerRecordDeviceDriver call?

epicsEnvSet( "PVXS_LOG", "pvxs.iface*=DEBUG" )

In an effort to handle changing network configuration changes, PVXS will occasionally re-query the list of local interfaces.  This has long been the case, however I did recently make a change to _when_ this happens.

With logging enabled, you should see lines like "Ignoring interface" and "Found interface":

2025-11-12T17:05:54.458712015 DEBUG pvxs.iface Ignoring interface 'lo' address family=17
2025-11-12T17:05:54.458719705 DEBUG pvxs.iface Ignoring interface 'wlp0s20f3' address family=17
2025-11-12T17:05:54.458721909 DEBUG pvxs.iface Ignoring interface 'br0' address family=17
2025-11-12T17:05:54.458723705 DEBUG pvxs.iface Ignoring interface 'tap0' address family=17
2025-11-12T17:05:54.458746937 DEBUG pvxs.iface Found interface 1 "lo" w/ 2 127.0.0.1
2025-11-12T17:05:54.458794954 DEBUG pvxs.iface Found interface 3 "wlp0s20f3" w/ 2 192.168.169.88
2025-11-12T17:05:54.458805716 DEBUG pvxs.iface Found interface 4 "br0" w/ 2 10.127.127.1
2025-11-12T17:05:54.458821577 DEBUG pvxs.iface Found interface 1 "lo" w/ 10 [::1]
2025-11-12T17:05:54.458835767 DEBUG pvxs.iface Found interface 3 "wlp0s20f3" w/ 10 [fe80::c136:44be:4935:b3e8]
%3
2025-11-12T17:05:54.458875297 DEBUG pvxs.iface Found interface 4 "br0" w/ 10 [fe80::9453:55ff:fe80:63a1]%4