Re: increasing sysv semaphore limits

[Jason Thorpe <thorpej%me.com@localhost>]

> On Jul 16, 2026, at 8:05 AM, Jörg Sonnenberger <joerg%bec.de@localhost> wrote:
> 
> On 7/16/26 12:23 AM, Jason Thorpe wrote:
>>> On Jul 15, 2026, at 2:58 PM, Mouse <mouse%rodents-montreal.org@localhost> 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.

While true, I mean it’s more akin to having dynamically-tunable maximums / limits.

-- thorpej