Re: memory leak in .67 ?

Linus Torvalds (torvalds@cs.helsinki.fi)
Fri, 23 Feb 1996 17:14:23 +0200 (EET)

> I happen to see our machine simply blocking recently (I installed 67
> yester- day). Symptoms are a black screen, and a num-lock LED that does
> not flash on/off when pressing the num-lock key.

Get 1.3.68. It fixes a socket problem that resulted in timers eating up all
your CPU time under certain circumstances (and as this is a network server, you
probably triggered them).

> since "Don't Run Out Of Swap"(TM) still seems to be a valid restriction in
> the kernel, and these symptoms look like an out-of-swap-box, I guess that's
> the reason for the hang.

There is also a memory leak associated with the socket bug, but that is
probably not the major reason for the problem. The machine is simply busy
walking the timer queue (which gets one entry deeper for every UDP socket.
Forever).

Oh, btw, 1.3.68 looks stable right now, but we still have only 24 hours of
experience with it. Certainly I have a few good reports..

Linus