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Re: Memory Block Header Corruption

Posted in 1998

David Williams — — source: Informix-list mailing list archive (1991-1998)

In article <6jj8vl$srk$1@news.xmission.com>, Richard W Sinyem <senyem@malitnet.net.my> writes > >Dear People, > >Below is an excerpt extracted from the Informix log file. The problem = Which version of Online? 7.12.UC1? 7.11.UC1? 5.07.UC1??? Which platform UNIX?(Which version) or NT (Which version?) >resulted in the database corruption but since then, the database has = >been restored. > >-------------------------------------------------------------------------= >------------------------------------------- >14:04:02 Checkpoint Completed: duration was 6 seconds. >14:07:46 Pool =3D 0xa9da010, Pool name =3D 24452, Blkhrd =3D 0xabe2050 >14:07:46 Possible memory block header corruption >14:07:46 mtshpool.c, line 2541, thread 24526, proc id 647, Condition = >Failed (CHECK_ALLOC_BLOCK), In ?. Thread (24526, sqlexec, 0, 1). >14:07:46 PANIC: Attempting to bring system down>? >? >? >14:14:44 Assert Failed: Page Check Error in btposition: bad btree =>mode >14:14:44 Who: Thread (8, main_loop(), a011878, 1) >14:14:44 Results: Possible inconsistencies in index =>'sysmaster:"informix".sysdatabases-Key#1' >14:14:44 Action: Run 'oncheck -CI 1048578' >14:14:44 See Also: /cts2/tmp1/af.4797aa, shmem.4797aa.0 > 14:15:24 INFORMIX-OnLine Stopped. >------------------------------------------------------------------------> >Can anyone describe the cause of the problem and what measures need to = >be undertake >to prevent such occurence ? > If UNIX check nothing overlaps you swap devices and that they do not overlap one another.. Otherwise it is probably a bug in Informix..talk to Informix Technical Support. I've heard of a bug like this and it is fixed in 7.24.. >Thanks and warm regards > >Richard W Sinyem > > -- David Williams Maintainer of the Informix FAQ Primary site (Beta Version) http://www.smooth1.demon.co.uk Official site http://www.iiug.org/techinfo/faq/faq_top.html I see you standin', Standin' on your own, It's such a lonely place for you, For you to be If you need a shoulder, Or if you need a friend, I'll be here standing, Until the bitter end... So don't chastise me Or think I, I mean you harm... All I ever wanted Was for you To know that I care