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2263953 - "Bufunhash: Buffer xxx from database id x has page number 0 in the page header and page number x in the buffer header" with no errors. - SAP ASE

Symptom

  • Received the following messages in the ASE errorlog:

Bufunhash: Buffer 0x10142cc3ac8 from database id 20 has page number 0 in the page header and page number 127818 in the buffer header. Buffer will be unhashed, no action is necessary. Printing headers for diagnostics:

Mass: 0x10142cc3a00
Buffer: 0x10142cc3ac8 Mass pageno: 127817
-Mass virtpg: 521501513 dbid: 20 Mass stat: 0x44201010
-Buffer pageno: 127818 Buffer virtpg: 521501514 Buf stat: 0x1 keep: 0 awaited: 0 tripsleft: 0
-bpage: 0x100ce585800 flushseq: 0 dirty seq: 0 filthyseq: 0 linked: (lru)

Page: 0x100ce585800
pageno: 0 objid: 0 indid: 0
- nextpg: 0 prevpg: 0 pstat: 0x0 ts: (0, 0) nextrno: 0
- freeoff: 0 minlen: 0 level: 0

Bufunhash: Buffer 0x1013cf6fa18 from database id 14 has page number 0 in the page header and page number 4562108 in the buffer header. Buffer will be unhashed, no action is necessary. Printing headers for diagnostics:

Mass: 0x1013cf6f950
Buffer: 0x1013cf6fa18 Mass pageno: 4562107
-Mass virtpg: 537337019 dbid: 14 Mass stat: 0x44201010
-Buffer pageno: 4562108 Buffer virtpg: 537337020 Buf stat: 0x1 keep: 0 awaited: 0 tripsleft: 0
-bpage: 0x10097bc2800 flushseq: 0 dirty seq: 0 filthyseq: 0 linked: (lru)

Page: 0x10097bc2800
pageno: 0 objid: 0 indid: 0
- nextpg: 0 prevpg: 0 pstat: 0x0 ts: (0, 0) nextrno: 0
- freeoff: 0 minlen: 0 level: 0

  • The dbcc checkdb command was ran on both databases. No errors reported.
     
  • UNIX team reported no issues reported on the hardware side.

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Environment

  • SAP Adaptive Server Enterprise (ASE) 12.5.x
  • SAP Adaptive Server Enterprise (ASE) 15.x
  • SAP Adaptive Server Enterprise (ASE) 16.0

Product

SAP Adaptive Server Enterprise 15.7 ; SAP Adaptive Server Enterprise 16.0 ; Sybase Adaptive Server Enterprise 12.5 ; Sybase Adaptive Server Enterprise 15.0 ; Sybase Adaptive Server Enterprise 15.5

Keywords

 CR721303,  CR#721303, 721303, traceflag, trace, flag, 828  , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Product Enhancement

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