Bug 12903 - File change notification for renames not working
File change notification for renames not working
Product: Samba 4.1 and newer
Classification: Unclassified
Component: File services
All All
: P5 normal
: ---
Assigned To: Ralph Böhme
Samba QA Contact
Depends on:
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Reported: 2017-07-13 10:13 UTC by Ralph Böhme
Modified: 2017-08-02 22:33 UTC (History)
1 user (show)

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Description Ralph Böhme 2017-07-13 10:13:05 UTC
Versions up to commit 939576d968d1e0159456baf6dd1e3c454b98995a had a bug in the messaging subsystem that resulted in rename change notifcation to get stuck and lost.

The patches in master 5eccc2fd0072409f166c63e6876266f926411423~10..5eccc2fd0072409f166c63e6876266f926411423 fix the problem by removing messaging_handler_send which was causing the problem.
Comment 1 Ralph Böhme 2017-07-13 14:33:17 UTC
Some more details:

this bug only affects configurations with "kernel change notify = yes" and builds with effective inotify support built in (FAM probably as well, not tested).

It's caused by the use of firing two immediate tevents for the "old-name" and "new-name" events due to a bug in messaging_handler_send() (more precisely: in the machinery it uses).

Commits b6d6f67..5eccc2f already fixed this in master but the bug still affects all released versions up to 4.7rc1.