https://bugs.openldap.org/show_bug.cgi?id=9947
Issue ID: 9947
Summary: Race in epoch.c
Product: OpenLDAP
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Keywords: needs_review
Severity: normal
Priority: ---
Component: lloadd
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
When epoch_leave() tests whether other threads might still be alive, it can
test things in reverse order, testing too early to catch a thread to come in
and too late to see a thread that just left. If those two saw each other, the
clock would not advance and the data in refs might actually still be a
reachable pointer.
The tests in epoch_leave can actually be simplified leading to machine code not
all compilers could figure out by themselves.
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