[#CORE-3873] Server crashes while switching to the shadow if the disk I/O fault happens while flushing the cache

Firebird Core

Server crashes while switching to the shadow if the disk I/O fault happens while flushing the cache

Created: 20/Jun/12 06:47 PM Updated: 23/Apr/13 01:55 PM

Component/s:

Engine

Affects Version/s:

3.0 Initial, 2.5.0, 2.5.1

Fix Version/s:

2.5.2, 3.0 Alpha 1

Time Tracking:

Not Specified

Planning Status:

Unspecified

Description

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This happens only if there are not active attachments at this point, e.g.:

- SS and FW=OFF: last user disconnects from the database
- CS and FW=OFF: any user disconnects from the database
- any arch and FW: the server is shutting down with active transactions

Unfortunately, some code parts attempt to access the NULL attachment pointer regardless.

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