ELBA-2026-50166-0

ELBA-2026-50166-0 - linuxptp bug fix and enhancement update

Type:	BUG
Impact:	NA
Release Date:	2026-08-04

Description

[4.4-4.el9_8.1]
- fix high CPU usage by ptp4l when link is down (RHEL-191410)
- fix phc2sys to not get stuck in static mode (RHEL-187949)

[4.4-3]
- fix unicast server to recover after port fault (RHEL-93496)

[4.4-2]
- add experimental option for external PPS in ts2phc automatic mode
(RHEL-72468)
- add command to set external grandmaster properties (RHEL-90585)
- refresh link status on faults (RHEL-56168)

[4.4-1]
- update to 4.4 (RHEL-58213 RHEL-57040)
- fix port-specific ptp/p2p_dst_ipv4 configuration (RHEL-60027)
- support static sink clocks in phc2sys automatic mode (RHEL-62864)
- don't require -O option without -a and -w in phc2sys (RHEL-69138)

[4.2-3]
- rework NMEA delay patch to fix PPS edge rejection (RHEL-39387)
- fix ts2phc to correctly handle leap seconds (RHEL-40216)
- fix ts2phc to reset NMEA parser after RMC message (RHEL-40947)
- add options to configure multicast IP addresses (RHEL-31178)
- add holdover support to ts2phc (RHEL-50216)

Updated Packages

Release/Architecture	Filename	sha256	Superseded By Advisory	Channel Label
Oracle Linux 9 (aarch64)	linuxptp-4.4-4.el9_8.1.src.rpm	8d5b76eb1f841a6fdf69bfe68818b98b39e40e7f84d225c3de8668f0d44a1d34	-	ol9_aarch64_appstream
	linuxptp-4.4-4.el9_8.1.aarch64.rpm	58dfec0884b7162f594e02ef26205ad5df9ca1b4f13d09972f5fc2618d62768f	-	ol9_aarch64_appstream
Oracle Linux 9 (x86_64)	linuxptp-4.4-4.el9_8.1.src.rpm	8d5b76eb1f841a6fdf69bfe68818b98b39e40e7f84d225c3de8668f0d44a1d34	-	ol9_x86_64_appstream
	linuxptp-4.4-4.el9_8.1.x86_64.rpm	dae977cb4726fafb60369937c071561b90fcf2e2288865ad898bd72937c3f8b5	-	ol9_x86_64_appstream

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