lkml.org 
[lkml]   [2000]   [Nov]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] Re: Negative scalability by removal of lock_kernel()?(Was:Strange
On Sat, 4 Nov 2000, Alan Cox wrote:

> > sysv semaphores have a very unfortunate negative feature -- if the admin
> > kill -9's the server (impatient admins do this all the time) then you end
> > up leaving a semaphore lying around. sysvsem don't have the usual unix
>
> Umm they have SEM_UNDO. Its a case of deeper magic

we use SEM_UNDO, that's not quite what i was worrying about. i was
worrying about leaving a stale semaphore in the global semaphore table.

IPC_RMID causes the semaphore to be destroyed immediately, rather than
after all the users are done.

-dean

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 12:45    [W:0.056 / U:1.808 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site