Re: Question about failure in PCI power-state change
On 09/09/2012 07:24 PM, Huang Ying wrote: On Fri, 2012-09-07 at 15:48 -0700, Bjorn Helgaas wrote: +cc Rafael, Huang, linux-pm On Fri, Sep 7, 2012 at 3:44 PM, Larry Finger wrote: Hi, On occasion when I unload and reload driver rtl8192ce, I get the message "Refused to change power state, currently in D3" Hi, Larry, We fixed a similar issue recently. And the patch has been merged by v3.6-rc5. Can you try v3.6-rc5? V3.6-rc5 was merged with wireless-testing today. It did not change my symptoms, but I think I have identified another problem with my driver. Thanks for the heads-up. Larry -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Question about failure in PCI power-state change
On Fri, 2012-09-07 at 15:48 -0700, Bjorn Helgaas wrote: > +cc Rafael, Huang, linux-pm > > On Fri, Sep 7, 2012 at 3:44 PM, Larry Finger > wrote: > > Hi, > > > > On occasion when I unload and reload driver rtl8192ce, I get the message > > > > "Refused to change power state, currently in D3" Hi, Larry, We fixed a similar issue recently. And the patch has been merged by v3.6-rc5. Can you try v3.6-rc5? Best Regards, Huang Ying -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Question about failure in PCI power-state change
On Fri, 2012-09-07 at 15:48 -0700, Bjorn Helgaas wrote: +cc Rafael, Huang, linux-pm On Fri, Sep 7, 2012 at 3:44 PM, Larry Finger larry.fin...@lwfinger.net wrote: Hi, On occasion when I unload and reload driver rtl8192ce, I get the message Refused to change power state, currently in D3 Hi, Larry, We fixed a similar issue recently. And the patch has been merged by v3.6-rc5. Can you try v3.6-rc5? Best Regards, Huang Ying -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Question about failure in PCI power-state change
On 09/09/2012 07:24 PM, Huang Ying wrote: On Fri, 2012-09-07 at 15:48 -0700, Bjorn Helgaas wrote: +cc Rafael, Huang, linux-pm On Fri, Sep 7, 2012 at 3:44 PM, Larry Finger larry.fin...@lwfinger.net wrote: Hi, On occasion when I unload and reload driver rtl8192ce, I get the message Refused to change power state, currently in D3 Hi, Larry, We fixed a similar issue recently. And the patch has been merged by v3.6-rc5. Can you try v3.6-rc5? V3.6-rc5 was merged with wireless-testing today. It did not change my symptoms, but I think I have identified another problem with my driver. Thanks for the heads-up. Larry -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Question about failure in PCI power-state change
On 09/08/2012 04:50 PM, Alan Stern wrote: On Sat, 8 Sep 2012, Rafael J. Wysocki wrote: On Saturday, September 08, 2012, Bjorn Helgaas wrote: +cc Rafael, Huang, linux-pm On Fri, Sep 7, 2012 at 3:44 PM, Larry Finger wrote: 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. I think writing "on" to the /sys/devices/.../power/control attribute of the device in question would help. Are you suggesting that this particular wireless adapter is unable to return to D0 from D3? Larry, what happens if you try the suspend & resume your system while there's a connection? Does a similar error occur during the resume? After I sent this request, I found an error in the removal process for this particular adapter, which I suspect is the real source of the problem. That difficulty is only found on the new variant of the card - the older one is OK. I think the problem is that the adapter is left in some ill-defined state that can only be cleared by doing a power reset. In that state, it is unable to return to D0. This box has never been able to suspend/resume, thus I cannot answer the other question. Thanks to all that responded. Once I clean up the other error, I will recontact the list if the D3 => D0 problem persists. Larry -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Question about failure in PCI power-state change
On Sat, 8 Sep 2012, Rafael J. Wysocki wrote: > On Saturday, September 08, 2012, Bjorn Helgaas wrote: > > +cc Rafael, Huang, linux-pm > > > > On Fri, Sep 7, 2012 at 3:44 PM, Larry Finger > > wrote: > > > 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. > > I think writing "on" to the /sys/devices/.../power/control attribute of the > device > in question would help. Are you suggesting that this particular wireless adapter is unable to return to D0 from D3? Larry, what happens if you try the suspend & resume your system while there's a connection? Does a similar error occur during the resume? Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Question about failure in PCI power-state change
On Saturday, September 08, 2012, Bjorn Helgaas wrote: > +cc Rafael, Huang, linux-pm > > On Fri, Sep 7, 2012 at 3:44 PM, Larry Finger > wrote: > > 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. I think writing "on" to the /sys/devices/.../power/control attribute of the device in question would help. Thanks, Rafael -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Question about failure in PCI power-state change
On Saturday, September 08, 2012, Bjorn Helgaas wrote: +cc Rafael, Huang, linux-pm On Fri, Sep 7, 2012 at 3:44 PM, Larry Finger larry.fin...@lwfinger.net wrote: 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. I think writing on to the /sys/devices/.../power/control attribute of the device in question would help. Thanks, Rafael -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Question about failure in PCI power-state change
On Sat, 8 Sep 2012, Rafael J. Wysocki wrote: On Saturday, September 08, 2012, Bjorn Helgaas wrote: +cc Rafael, Huang, linux-pm On Fri, Sep 7, 2012 at 3:44 PM, Larry Finger larry.fin...@lwfinger.net wrote: 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. I think writing on to the /sys/devices/.../power/control attribute of the device in question would help. Are you suggesting that this particular wireless adapter is unable to return to D0 from D3? Larry, what happens if you try the suspend resume your system while there's a connection? Does a similar error occur during the resume? Alan Stern -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Question about failure in PCI power-state change
On 09/08/2012 04:50 PM, Alan Stern wrote: On Sat, 8 Sep 2012, Rafael J. Wysocki wrote: On Saturday, September 08, 2012, Bjorn Helgaas wrote: +cc Rafael, Huang, linux-pm On Fri, Sep 7, 2012 at 3:44 PM, Larry Finger larry.fin...@lwfinger.net wrote: 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. I think writing on to the /sys/devices/.../power/control attribute of the device in question would help. Are you suggesting that this particular wireless adapter is unable to return to D0 from D3? Larry, what happens if you try the suspend resume your system while there's a connection? Does a similar error occur during the resume? After I sent this request, I found an error in the removal process for this particular adapter, which I suspect is the real source of the problem. That difficulty is only found on the new variant of the card - the older one is OK. I think the problem is that the adapter is left in some ill-defined state that can only be cleared by doing a power reset. In that state, it is unable to return to D0. This box has never been able to suspend/resume, thus I cannot answer the other question. Thanks to all that responded. Once I clean up the other error, I will recontact the list if the D3 = D0 problem persists. Larry -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Question about failure in PCI power-state change
+cc Rafael, Huang, linux-pm On Fri, Sep 7, 2012 at 3:44 PM, Larry Finger wrote: > 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 majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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 majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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 majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Question about failure in PCI power-state change
+cc Rafael, Huang, linux-pm On Fri, Sep 7, 2012 at 3:44 PM, Larry Finger larry.fin...@lwfinger.net wrote: 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 majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
