Hi,
I've compiled and installed Fiasco and L4Linux-2.6 and it works, except that when I start a simple test program that creates lots of pthreads, the whole L4Linux task freezes (simply pthread_create() a thousand threads after each other is enough to reproduce the problem). I can ping the machine from another host, but can't login through ssh, the console becomes totally unresponsive, etc.
At the same time, the following message appears in the log:
simplets| ERROR: task #23 doesn't match: client 10.03, owner 0.0 l4lx | l4ts_create_task(): failed (server=7.00, ret=-3, exc=0)
Other L4 tasks continue running uncluttered.
Do you have an idea why this happens? Is this a bug in Fiasco, or is it a misconfiguration problem?
-vili
Hi,
On Thu May 11, 2006 at 10:09:10 +0200, Vilmos Nebehaj wrote:
I've compiled and installed Fiasco and L4Linux-2.6 and it works, except that when I start a simple test program that creates lots of pthreads, the whole L4Linux task freezes (simply pthread_create() a thousand threads after each other is enough to reproduce the problem). I can ping the
As you already seem to have a small test program, can you just send it to me (possibly via PM) and I'll check?
machine from another host, but can't login through ssh, the console becomes totally unresponsive, etc.
At the same time, the following message appears in the log:
simplets| ERROR: task #23 doesn't match: client 10.03, owner 0.0 l4lx | l4ts_create_task(): failed (server=7.00, ret=-3, exc=0)
Other L4 tasks continue running uncluttered.
Do you have an idea why this happens? Is this a bug in Fiasco, or is it a misconfiguration problem?
Currently it's not possible to create thousands of threads not thousands of tasks. I have something in the queue to get the first limit removed, and we'll probably do something for the second too.
I don't think it's a bug in Fiasco and probably not a misconfiguration but let me check first.
Adam
Hey Adam,
On May 12, 2006, at 1:08 AM, Adam Lackorzynski wrote:
Hi,
On Thu May 11, 2006 at 10:09:10 +0200, Vilmos Nebehaj wrote:
I've compiled and installed Fiasco and L4Linux-2.6 and it works, except that when I start a simple test program that creates lots of pthreads, the whole L4Linux task freezes (simply pthread_create() a thousand threads after each other is enough to reproduce the problem). I can ping the
As you already seem to have a small test program, can you just send it to me (possibly via PM) and I'll check?
Yes, of course. I'm not sure whether mailman strips attachments, so I've put it up to http://broadbit.com/~vili/pthread_create.c
machine from another host, but can't login through ssh, the console becomes totally unresponsive, etc.
At the same time, the following message appears in the log:
simplets| ERROR: task #23 doesn't match: client 10.03, owner 0.0 l4lx | l4ts_create_task(): failed (server=7.00, ret=-3, exc=0)
Other L4 tasks continue running uncluttered.
Do you have an idea why this happens? Is this a bug in Fiasco, or is it a misconfiguration problem?
Currently it's not possible to create thousands of threads not thousands of tasks. I have something in the queue to get the first limit removed, and we'll probably do something for the second too.
I don't think it's a bug in Fiasco and probably not a misconfiguration but let me check first.
It doesn't create them at the same time, it just tests how much time it takes to create a given number of detached pthreads exiting immediately.
Thx, -vili
l4-hackers@os.inf.tu-dresden.de
-
Adam Lackorzynski -
Vilmos Nebehaj