| Bug #3130 | apparent pread problem in Darwin-x86 | ||
|---|---|---|---|
| Submitted: | 10 Mar 2004 12:25 | Modified: | 11 Apr 2004 14:51 |
| Reporter: | Don Whiteside | Email Updates: | |
| Status: | No Feedback | Impact on me: | |
| Category: | MySQL Server | Severity: | S1 (Critical) |
| Version: | 4.0.18 | OS: | Darwin-6.6-on-X86 |
| Assigned to: | Assigned Account | CPU Architecture: | Any |
[11 Mar 2004 14:51]
Michael Widenius
From the problem description it sounds that there is some unknown problem with pread() on your systems. As I don't have access to a Darwing 6.6 (our Mac OS X is 6.8) I can't find out what could be the problem. In theory having -DHAVE_BROKEN_PREAD in both CFLAGS and CXXFLAGS should solve this problem. This will just undef HAVE_PREAD and HAVE_PWRITE for the compilation: In include/my_global.h: #ifdef HAVE_BROKEN_PREAD /* These doesn't work on HPUX 11.x */ #undef HAVE_PREAD #undef HAVE_PWRITE #endif Hope the above is enough for you to resolve your issue until you can upgrade to 6.8
[14 Feb 2005 22:54]
Bugs System
No feedback was provided for this bug for over a month, so it is being suspended automatically. If you are able to provide the information that was originally requested, please do so and change the status of the bug back to "Open".
Description: If configure is run and detected settings used make will succeed and mysql_install_db will work (apparently) but subsequent attempts to start mysqld will terminate when trying to read the host.frm file. Examining the trace file shows that this line in mysys/my_pread.c: error=((readbytes = (uint) pread(Filedes, Buffer, Count, offset)) != Count); will always return -1 and return (the seemingly incorrect) error 27 indicating a filesystem full/quota issue. (a little odd for a READ operation :) How to repeat: Install OpenDarwin on an x86 system and compile the source distro, do install and attempt to do initial installation steps; databases seem to create but mysqld will not load the permissions table. Suggested fix: If I comment out this line in config.h before compiling: #define HAVE_PREAD 1 the compiled binaries will function. I tried adding -DHAVE_BROKEN_PREAD to CXXFlags but that didn't seem to resolve the issue - perhaps I don't understand the flag's function correctly.