[389-devel] Please review (resend): [389 Project] #391: Slapd crashes when deleting backends while operations are still in progress

[Noriko Hosoi]

(2012/10/26 12:15), Noriko Hosoi wrote:
>  https://fedorahosted.org/389/ticket/391
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> https://fedorahosted.org/389/attachment/ticket/391/0001-Trac-Ticket-391-S...
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>   Bug Description: Deleting backend code ldbm_instance_delete_instance_
>   entry_callback had no checking for the ordinary operations accessing
>   the backend instance.  Even if some operations are still in progress,
>   the backend instance could be deleted and it crashes the server.
>
>   Fix Description: Backend struct ldbm_instance had a member inst_ref_
>   count, which was not used.  This patch converts the type PRInt32 to
>   Slapi_Counter and increments it when the backend instance is in use.
>   The delete code checks the counter and if it is greater than 0, it
>   returns SLAPI_DSE_CALLBACK_ERROR.
>