linux-kernel - Question about failure in PCI power-state change

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 for Android: free password hash cracker in your pocket

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

Date:	Fri, 07 Sep 2012 17:44:57 -0500
From:	Larry Finger <Larry.Finger@...inger.net>
To:	Bjorn Helgaas <bhelgaas@...gle.com>
CC:	linux-pci@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	李朝明 <chaoming_li@...lsil.com.cn>
Subject: Question about failure in PCI power-state change

Hi,

On occasion when I unload and reload driver rtl8192ce, I get the message

"Refused to change power state, currently in D3"

I added additional info to the printk and discovered that it was trying to 
change to state D0. The problem seems to occur when I have made a connection, 
unloaded the driver, and reloaded it. If I do not make a connection before 
unloading, then the problem is a lot less likely.

This is with kernel 3.6-rc4 from wireless-testing. A Google search shows that 
the problem is usually due to suspend/resume difficulties, but this machine has 
not been suspended.

I would appreciate any help that you might give in solving this issue.

Thanks,

Larry
--
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/