On 11/02/2012 05:07 PM, Sasha Levin wrote: > On Fri, Nov 2, 2012 at 11:51 AM, Jiri Slaby <jsl...@suse.cz> wrote: >> On 10/31/2012 04:59 PM, Sasha Levin wrote: >>> So you probably want a lot more than 100k syscalls, why limit it at >>> all actually? >> >> I unset the limit but I still can't reproduce... >> >>> I've attached my .config for the guest kernel as reference. >> >> Even using this config does not help to reproduce that. >> >> Do you use some special trinity params? > > Not really: > > ./trinity -m --quiet --dangerous -l off
Oh, you run that as root?? > Can I add something to my kernel to provide more info when it happens? Maybe the attached patch can tell us more... -- js suse labs
>From 36ad8f281846ef395e1969fc2af324c5edb13043 Mon Sep 17 00:00:00 2001 From: Jiri Slaby <jsl...@suse.cz> Date: Sun, 28 Oct 2012 21:42:02 +0100 Subject: [PATCH] tty BUF DEBUG Signed-off-by: Jiri Slaby <jsl...@suse.cz> --- drivers/tty/tty_buffer.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/tty/tty_buffer.c b/drivers/tty/tty_buffer.c index 45d9161..c70274b 100644 --- a/drivers/tty/tty_buffer.c +++ b/drivers/tty/tty_buffer.c @@ -371,6 +371,7 @@ void tty_schedule_flip(struct tty_struct *tty) if (buf->tail != NULL) buf->tail->commit = buf->tail->used; spin_unlock_irqrestore(&buf->lock, flags); + WARN_RATELIMIT(tty->port->itty == NULL, "HUH\n"); schedule_work(&buf->work); } EXPORT_SYMBOL(tty_schedule_flip); @@ -566,6 +567,7 @@ void tty_flip_buffer_push(struct tty_struct *tty) buf->tail->commit = buf->tail->used; spin_unlock_irqrestore(&buf->lock, flags); + WARN_RATELIMIT(tty->port->itty == NULL, "HUH\n"); if (tty->low_latency) flush_to_ldisc(&buf->work); else -- 1.8.0
