Alexander Lazarevich wrote: > [root@blah root]# uname -a > Linux blah 2.6.10-1.741_FC3smp #1 SMP Thu Jan 13 16:58:29 EST 2005 x86_64 > x86_64 x86_64 GNU/Linux > > Hardware is Tyan 2885 mobo, two opteron 244 procs in it. Right now the > system has 4GB of memory installed: > > [root@hofmann license]# cat /proc/meminfo > MemTotal: 3607440 kB > > The mobo takes up to 16GB of memory. But when I add more memory, 4 more > 1GB dimms, 8GB total, same exact type of memory that is already in the > system (DDR ECC Reg PC2700), the kernel panics and doesn't boot. The error > is: > > <0> kernel panic - not syncing: Attempted to kill the idle task > > It dies just before the audit init takes place, so the kernel hardly boots > at all, if even. > > Any idea what the maximum memory is for FC3 with the kernel I have? I > tried looking for a bigmem kernel but isn't large memory support built in? > I'm pretty sure support is for much more memory than 4GB. Do I have to > recompile a special kernel though? > > Does anyone have more than 4GB of memory in a FC3 system and NOT have > kernel panics? What is your kernel? AFAIK the x86-64 limit at the moment is 1 TB = 1024 GB. And that should be there for all kernels. Something is very wrong there. And I suspect hardware. What does memtest86 say? Can you try a bootable CD? Can you just try the new memory? James. -- E-mail address: james | Please do not put sandwiches in the disk drive. @westexe.demon.co.uk |