* Willy Tarreau <[EMAIL PROTECTED]> wrote: > On Sat, Apr 14, 2007 at 03:01:01PM +0200, Willy Tarreau wrote: > > > > Well, I'll stop heating the room for now as I get out of ideas about how > > to defeat it. > > Ah, I found something nasty. > If I start large batches of processes like this : > > $ for i in $(seq 1 1000); do ./scheddos2 4000 4000 & done > > the ramp up slows down after 700-800 processes, but something very > strange happens. If I'm under X, I can switch the focus to all xterms > (the WM is still alive) but all xterms are frozen. On the console, > after one moment I simply cannot switch to another VT anymore while I > can still start commands locally. But "chvt 2" simply blocks. SysRq-K > killed everything and restored full control. Dmesg shows lots of :
> SAK: killed process xxxx (scheddos2): process_session(p)==tty->session. > > I wonder if part of the problem would be too many processes bound to > the same tty :-/ hm, that's really weird. I've Cc:-ed the tty experts (Erik, Jiri, Alan), maybe this description rings a bell with them? Ingo - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/