7a02fcaf20
Each server is inserted in a global list named servers_list on new_server(). This list is then only used to finalize servers initialization after parsing. On dynamic server creation, there is no issue as new_server() is under thread isolation. However, when a server is deleted after its refcount reached zero, srv_drop() removes it from servers_list without lock protection. In the longterm, this can cause list corruption and crashes, especially if multiple adjacent servers are removed in parallel. To fix this, convert servers_list to a mt_list. This should not impact performance as servers_list is not used during runtime outside of server creation/deletion. This should fix github issue #2733. Thanks to Chris Staite who first found the issue here. This must be backported up to 2.6. |
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| haproxy | ||
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