Public bug reported:
SRU Justification
[Impact]
We recently fixed DNS resolution of the server hostname during reconnect.
However, server IP address may change, even when the old one continues to
server (although sub-optimally).
We should schedule the next DNS resolution based on the TTL of the DNS record
used for the last resolution. This way, we resolve the server hostname again
when a DNS record expires.
[Fix]
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=506c1da44fee32ba1d3a70413289ad58c772bba6
[Test Case]
Microsoft tested
[Regression potential]
Samba Reconnects may fail.
[Other Info]
SF: #00320698
** Affects: linux-azure (Ubuntu)
Importance: Undecided
Status: Invalid
** Affects: linux-azure (Ubuntu Focal)
Importance: Undecided
Assignee: Tim Gardner (timg-tpi)
Status: In Progress
** Also affects: linux-azure (Ubuntu Focal)
Importance: Undecided
Status: New
** Changed in: linux-azure (Ubuntu)
Status: New => Invalid
** Changed in: linux-azure (Ubuntu Focal)
Status: New => In Progress
** Changed in: linux-azure (Ubuntu Focal)
Assignee: (unassigned) => Tim Gardner (timg-tpi)
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https://bugs.launchpad.net/bugs/1946744
Title:
linux-azure: cifs: use the expiry output of dns_query to schedule next
resolution
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