Re: [Bug 10872] x86_64 boot hang when CONFIG_NUMA=n

Randy Dunlap
2008-06-16T15:33:20Z

On Sun, 15 Jun 2008 21:15:17 -0700 Yinghai Lu wrote:

> On Sun, Jun 15, 2008 at 6:11 PM, Randy Dunlap <randy.dunlap@oracle.com> wrote:
> > On Sun, 15 Jun 2008 12:18:42 -0700 Yinghai Lu wrote:
> >
> >> On Sun, Jun 15, 2008 at 9:35 AM, Randy Dunlap <randy.dunlap@oracle.com> wrote:
> >> > On Sat, 14 Jun 2008 22:12:04 +0200 (CEST) Rafael J. Wysocki wrote:
> >> >
> >> >> This message has been generated automatically as a part of a report
> >> >> of recent regressions.
> >> >>
> >> >> The following bug entry is on the current list of known regressions
> >> >> from 2.6.25. Please verify if it still should be listed.
> >> >>
> >> >>
> >> >> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10872
> >> >> Subject : x86_64 boot hang when CONFIG_NUMA=n
> >> >> Submitter : Randy Dunlap <randy.dunlap@oracle.com>
> >> >> Date : 2008-06-05 21:50 (10 days old)
> >> >> References : http://marc.info/?l=linux-kernel&m=121270308607116&w=4
> >> >> http://lkml.org/lkml/2008/6/11/355
> >> >> Handled-By : Yinghai Lu <yhlu.kernel@gmail.com>
> >> >
> >> > Yes, still happens for me on 2.6.26-rc6-git2.
> >> >
> >>
> >> please send out whole boot log with numa on and numa off
> >> and boot with debug
> >>
> >> please apply attached debug patch too.
> >
> > OK, did all of that.
> > I should probably note that in both cases, the kernel is loaded/booted by using kexec.
> > Both boot logs are captured generated via netconsole.
> >
> > The failing boot log is netcon-4409.log. The working boot log (CONFIG_NUMA=y) is
> > netcon-4410.log. Enabling CONFIG_NUMA makes the following changes:
>
> how about the numa=off on the kernel with CONFIG_NUMA=y?

Hi,
That hangs the same way as the previous.

BTW, that kernel boot option needs to be documented in
Documentation/kernel-parameters.txt ...

---
~Randy
'"Daemon' is an old piece of jargon from the UNIX operating system,
where it referred to a piece of low-level utility software, a
fundamental part of the operating system."