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a5906b6cd2
caused by refering broken (uninitialized?) pointer which is retrieved from __bt_new() (and from mpool_new()). I don't know why this linp[0] is read before stored because this should be controlled by .lower and .upper member of PAGE structure which are correctly initialized. But this workaround fixes the problem on my environment and this module has #ifdef PURIFY option which initializes new and reused memory from mpool by memset(p, 0xff, size) like as I did. Please feel free to fix the real bug instead of my workaround. |
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| btree | ||
| db | ||
| docs | ||
| hash | ||
| man | ||
| mpool | ||
| recno | ||
| test | ||
| changelog | ||
| Makefile.inc | ||
| README | ||
# @(#)README 8.27 (Berkeley) 9/1/94 This is version 1.85 of the Berkeley DB code. For information on compiling and installing this software, see the file PORT/README. Newer versions of this software will periodically be made available by anonymous ftp from ftp.cs.berkeley.edu. An archive in compressed format is in ucb/4bsd/db.tar.Z, or in gzip format in ucb/4bsd/db.tar.gz. If you'd like to receive announcements of future releases of this software, send email to the contact address below. Email questions may be addressed to Keith Bostic at bostic@cs.berkeley.edu. ============================================ Distribution contents: Makefile.inc Ignore this, it's the 4.4BSD subsystem Makefile. PORT The per OS/architecture directories to use to build libdb.a, if you're not running 4.4BSD. See the file PORT/README for more information. README This file. btree The B+tree routines. changelog List of changes, per version. db The dbopen(3) interface routine. docs Various USENIX papers, and the formatted manual pages. hash The extended linear hashing routines. man The unformatted manual pages. mpool The memory pool routines. recno The fixed/variable length record routines. test Test package. ============================================ Debugging: If you're running a memory checker (e.g. Purify) on DB, make sure that you recompile it with "-DPURIFY" in the CFLAGS, first. By default, allocated pages are not initialized by the DB code, and they will show up as reads of uninitialized memory in the buffer write routines.