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** Branch linked: lp:~laurynas-biveinis/drizzle/bug911948

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https://bugs.launchpad.net/bugs/911948

Title:
  InnoDB assertion failure in log0log.cc line 616

Status in A Lightweight SQL Database for Cloud Infrastructure and Web Applications:
  In Progress

Bug description:
  I'm trying to sysbench Drizzle with 48 tables of 5M rows each, but
  sysbench causes Drizzle InnoDB to die on the second table with this
  error:

  111223 20:32:58  InnoDB: Assertion failure in thread 140116942296960 in file plugin/innobase/log/log0log.cc line 616
  InnoDB: Failing assertion: (sizeof(ulint) == 4) || (offset < (((ib_int64_t) 1) << 32))

  Alexey @ Percona told me:

  It's a wrong assertion. The goal was to restrict offset to 4GB on 32-bit
  systems. So it should be "(sizeof(ulint) != 4) || (offset < (((ib_int64_t) 1) << 32))"

  The revision that introduced that code:

  revno: 2258.3.1
  committer: Laurynas Biveinis
  branch nick: percona-files-extend
  timestamp: Tue 2011-04-05 13:32:12 +0300
  message: Port Percona's innodb_files_extend.patch

  But the code in XtraDB is different:

  	if (sizeof(ulint) == 4) {
  	ut_a(offset < (((ib_int64_t) 1) << 32)); /* offset must be < 4 GB */
  	}

  Which is less pretty, but correct.

  I'm not sure what the relationship is between Drizzle InnoDB and
  Percona XtraDB.  In any case, the bug exists in Drizzle and is
  preventing big sysbench tests.

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