[Mellanox] Add phcsync warm reboot gate to avoid sync during warm reboot#26332
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zili11720 wants to merge 6 commits into
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[Mellanox] Add phcsync warm reboot gate to avoid sync during warm reboot#26332zili11720 wants to merge 6 commits into
zili11720 wants to merge 6 commits into
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Signed-off-by: Zili Bombach <zbombach@nvidia.com>
Signed-off-by: Zili Bombach <zbombach@nvidia.com>
Signed-off-by: Zili Bombach <zbombach@nvidia.com>
Signed-off-by: Zili Bombach <zbombach@nvidia.com>
Signed-off-by: Zili Bombach <zbombach@nvidia.com>
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noaOrMlnx
approved these changes
Mar 30, 2026
This was referenced Apr 16, 2026
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This PR is related to:
sonic-net/sonic-sairedis#1810
sonic-net/sonic-swss-common#1161
Together, these PRs introduce an event-driven mechanism that starts and stops phcsync.sh during a warm reboot.
Order of merge:
Why I did it
This fixes an issue where clock synchronization accessed the ASIC clock concurrently with the warm reboot ISSU process.
Work item tracking
How I did it
Add phcsync_warm_reboot_gate.py to start/stop phcsync.sh during warm reboot.
How to verify it
Which release branch to backport (provide reason below if selected)
Tested branch (Please provide the tested image version)
Description for the changelog
Link to config_db schema for YANG module changes
A picture of a cute animal (not mandatory but encouraged)