linux-kernel - Re: 2.6.18-rt1

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Date:	Wed, 20 Sep 2006 13:27:38 -0700
From:	"Mark Knecht" <markknecht@...il.com>
To:	"Ingo Molnar" <mingo@...e.hu>
Cc:	linux-kernel@...r.kernel.org,
	"Thomas Gleixner" <tglx@...utronix.de>,
	"John Stultz" <johnstul@...ibm.com>,
	"Paul E. McKenney" <paulmck@...ibm.com>,
	"Dipankar Sarma" <dipankar@...ibm.com>,
	"Arjan van de Ven" <arjan@...radead.org>
Subject: Re: 2.6.18-rt1

On 9/20/06, Mark Knecht <markknecht@...il.com> wrote:
> On 9/20/06, Ingo Molnar <mingo@...e.hu> wrote:
> > I'm pleased to announce the 2.6.18-rt1 tree, which can be downloaded
> > from the usual place:
> >
> >    http://redhat.com/~mingo/realtime-preempt/
> >
>
> Hi Ingo,
>    I gave 2.6.18-rt2 a quick try. It compiled fine but crashed on
> boot.

Hi again Ingo.
   2.6.18-rt3 booted. For some reason a number of drivers either
didn't get built or didn't get loaded. I'm looking into that now:

lightning ~ # lsmod
Module                  Size  Used by
lightning ~ #

   I am wrting you from the machine running the new kernel so we're
making headway.

   I spot this in dmesg though:

EXT3-fs: mounted filesystem with ordered data mode.
Adding 2008084k swap on /dev/sda10.  Priority:-1 extents:1 across:2008084k
eth0: no IPv6 routers present
BUG: time warp detected!
prev > now, 1014d39b1fe7c3e8 > 1014d39b063d8631:
= 430587319 delta, on CPU#0

Call Trace:
 [<ffffffff8020b15c>] dump_stack+0x12/0x17
 [<ffffffff8023ba68>] getnstimeofday+0x131/0x13c
 [<ffffffff80247bfa>] ktime_get_ts+0x1a/0x4e
 [<ffffffff8022ffac>] copy_process+0x449/0x159c
 [<ffffffff802312e7>] do_fork+0xd0/0x1d4
 [<ffffffff80209c7b>] ptregscall_common+0x67/0xac
DWARF2 unwinder stuck at ptregscall_common+0x67/0xac
Leftover inexact backtrace:

---------------------------
| preempt count: 00000000 ]
| 0-level deep critical section nesting:
----------------------------------------

   My kernel config is attached.

Cheers,
Mark

Download attachment "KNECHT-2.6.18-rt3.config" of type "application/octet-stream" (32158 bytes)