> Hi! > > ----- Original Message ----- > From: "Wan YU" <[EMAIL PROTECTED]> > Newsgroups: mailing.database.mysql > Sent: Thursday, June 27, 2002 8:25 PM > Subject: BUG REPORT FOR MYSQL > > > > Hi, > > > > I'm doing research on DBMS recently and have found > > some bugs in mysql's source codes.I think it will be > > more convenient to point out them directly than using > > mysqlbug.The following are my finds. > > > > mysqladmin -version output: > > > > mysqladmin Ver 8.22 Distrib 3.23.44, for pc-linux-gnu > > on i686 > > Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX > > DataKonsult AB > > > > BUGS REPORT: > > > > 1. file: innobase/os/os0sync.c > > function: os_event_wait_time > > line: 237 > > > > This function uses Windows API > > "WaitForSingleObject" while passing a wrong parameter > > to it. Because WaitForSingleObject wants the second > > parameter to be quantity of milliseconds while it > > actually gets the quantity of seconds. > > The parameter to os_event_wait_time function is in microseconds. To get > milliseconds we divide it by 1000. > > > FIX RECOMMENDATION: Maybe it should be modified this > > way, > > > > err = WaitForSingleObject(event, time); > > > > 2. file: innobase/log/log0log.c > > function: log_archive_do > > line: 2171 > > > > There will be a deadlock obviously! > > These lines of code are not used in MySQL. But I do not see a deadlock > either: the thread just waits that an event becomes signaled again. > > > FIX RECOMMENTDATION: Comment this statement. > > > > > > > > Please check these places and I'm expecting your > > answer. > > Good luck, > > > > sincerely, > > > > YBETTER > > Regards, > > Heikki > Innobase Oy > (sql database)
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