Re: [Patch] jbd commit code deadloop when installing Linux

Arjan van de Ven
2006-06-28T09:11:03Z

On Tue, 2006-06-27 at 23:40 -0700, Andrew Morton wrote:
> On 28 Jun 2006 12:48:43 +0800
> Zou Nan hai <nanhai.zou@intel.com> wrote:
>
> > We see system hang in ext3 jbd code
> > when Linux install program anaconda copying
> > packages.
> >
> > That is because anaconda is invoked from linuxrc
> > in initrd when system_state is still SYSTEM_BOOTING.
> >
> > Thus the cond_resched checks in journal_commit_transaction
> > will always return 1 without actually schedule,
> > then the system fall into deadloop.
>
> That's a bug in cond_resched().

hummm while this fix is needed... something makes me want to think that
something as complex as an OS installer really shouldn't be running with
SYSTEM_BOOTING state anymore....
shouldn't we start considering running the initrd (esp now with klibc)
as SYSTEM_RUNNING ?