On 7/16/26 12:23 AM, Jason Thorpe wrote:
On Jul 15, 2026, at 2:58 PM, Mouse <[email protected]> wrote:
Except doesn't that open you up to a DoS attack, running the kernel out
of memory by creating a zillion semaphores?
I mean, it’s really the same thing as with file descriptors.
Yes and no. SYSV semaphores are persistent and independent of both file
descriptors and processes. So even killing processes is not going to
return the memory used by them.
Joerg
PS: the real question would IMO be why PG is still using SYSV semaphores
in first place.
