Shared memory

Hi,
Has anyone had a problem using the shmctl function to change the access mode of a shared memory
block?

What I am doing is allocating shared memory using mode 666, and writing to it, then I use shmctl to change its
mode to 600, switch to another userid using su, and try and read from the shared memory block. on ia32 linux
I get an permission denied error, on ia64 with the latest turbolinux kernel and glibc i can read from that memory
block.

Thank you,
Ronen Grosman
- Phone: Internal:778-4478 External: (416)-448-4478 Fax:
(416)448-4414
- e-mail [email protected]

Hi Ronen,

That's an arch independent bug in the shm code. I will try to make a fix beginning next week.

Thanks for spotting this,
Christoph