linux-kernel - Re: [BUG] Suspend tries to suspend devices already in D3

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <200902040225.22113.rjw@sisk.pl>
Date:	Wed, 4 Feb 2009 02:25:21 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Frans Pop <elendil@...net.nl>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [BUG] Suspend tries to suspend devices already in D3

On Tuesday 03 February 2009, Frans Pop wrote:
> On Tuesday 03 February 2009, Frans Pop wrote:
> > Looking at iwl-agn.c the cause could be that iwl_pci_suspend() depends
> > on iwl_mac_stop() to call pci_save_state(). I added some debug
> > statements in iwl_pci_suspend() that showed priv->is_open is false, so
> > iwl_mac_stop does indeed *not* get called when the interface is down.
> 
> However, iwl_mac_stop() had been called when I ran ifdown just before
> suspending the system:

The problem that the warning can be triggered by a device being in a low
power state already before suspend should be fixed by the PCI PM fixes I've
just posted.

Thanks,
Rafael
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/