On Wed, 2005-08-24 at 05:12 +0200, Andi Kleen wrote:
> On Wednesday 24 August 2005 03:59, Shaohua Li wrote:
> > On Wed, 2005-08-24 at 03:52 +0200, Andi Kleen wrote:
> > > Shaohua Li <[email protected]> writes:
> > > > x86-64 has resume support. It uses 'on_each_cpu' in resume method,
> > > > which is known broken. We'd better fix it.
> > >
> > > What is broken with it?
> >
> > It's a sysdev. The resume method is invoked with interrupt disabled.
>
> But only local interrupt disabled, no?
>
> Hmm - didn't we have a WARN_ON(irqs_disabled()) in smp_call_function().
>
> Anyways, it'll probably still work for now because the system should
> be synchronized at this point.
We are using cpu hotplug framework for MP suspend/resume. When sysdev's
resume is calling, APs actually aren't up. So it actually can't work.
Thanks,
Shaohua
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
| |
 |