Hello list, I have searched the lists but I don't see a clear answer to running MySQL on a 32-bit Linux server with more than 2gb allocated to innodb_buffer_pool_size. Here are the details, and any help or direction to the right resources would be really appreciated. Server is 32-bit and has 4GB RAM and 2GB swap OS is FC2 Kernel is 2.6.9-1.9_FC2hugemem #1 SMP Mon Dec 13 01:31:08 EST 2004 i686 i686 i386 GNU/Linux MySQL tried is MySQL-server-4.1.12-1 and MySQL-server-4.1.13-0 from binary RPM's from mysql.org. # ulimit -a core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited file size (blocks, -f) unlimited max locked memory (kbytes, -l) 32 max memory size (kbytes, -m) unlimited open files (-n) 1024 pipe size (512 bytes, -p) 8 stack size (kbytes, -s) 10240 cpu time (seconds, -t) unlimited max user processes (-u) 61436 virtual memory (kbytes, -v) unlimited With the following set, the server works fine: innodb_buffer_pool_size = 1700M When I change this to anything above 2000M it fails with the following error message: 050804 19:11:27 mysqld started 050804 19:11:28 [Warning] Asked for 196608 thread stack, but got 126976 050804 19:11:29 InnoDB: Error: cannot allocate 2411741184 bytes of InnoDB: memory with malloc! Total allocated memory InnoDB: by InnoDB 34049176 bytes. Operating system errno: 12 InnoDB: Check if you should increase the swap file or InnoDB: ulimits of your operating system. InnoDB: On FreeBSD check you have compiled the OS with InnoDB: a big enough maximum process size. InnoDB: We keep retrying the allocation for 60 seconds... I also have a test machine (though with 1GB RAM and 4.5GB swap) running RHEL4 with the following kernel returning the exact same problem: 2.6.9-11.ELhugemem #1 SMP Wed Jun 8 18:47:48 CDT 2005 i686 i686 i386 GNU/Linux >From the release notes, the stock FC2 kernel should allocate 3GB/1GB by default for userspace processes? This does not happen on my machines. In the case of the hugemem kernels, the release notes indicate user space processes can allocate upto 4GB if it is available. I am not seeing this work either. Anyone have this working at their site or have any insight to this? Brian __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com