It turns out shmmni is limited to 32768 in the kernel:

define IPCMNI 32768  /* &lt;= MAX_INT limit for ipc arrays (including sysctl changes) */

in the file  ...version.../include/linux/ipc.h

So short of recompiling the kernel, that is the hard limit on the number of shared memory segments. Sorry.  

Shared memory: shmget fails: No space left on device -- how to increase limits?
I use the Google Mail keyboard shortcuts a lot and I've just started working on a Mac. One shortcut I use a lot is delete, which Google Mail listens for the # key.

However, when I press the equivalent on the Mac keyboard (Alt+3) it doesn't work.  I've tried pressing backspace and Fn+Backspace but no luck.

Anyone out there know the solution?
