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Message-ID: <20100503225735.6b5e2687@neptune.home>
Date: Mon, 3 May 2010 22:57:35 +0200
From: Bruno Prémont <bonbons@...ux-vserver.org>
To: Alan Stern <stern@...land.harvard.edu>
Cc: "Rafael J. Wysocki" <rjw@...k.pl>,
Kernel development list <linux-kernel@...r.kernel.org>,
USB list <linux-usb@...r.kernel.org>,
pm list <linux-pm@...ts.linux-foundation.org>
Subject: Re: s2ram slow (radeon) / failing (usb)
On Mon, 03 May 2010 Alan Stern <stern@...land.harvard.edu> wrote:
> On Mon, 3 May 2010, Bruno [UTF-8] Prémont wrote:
>
> > On Mon, 03 May 2010 Alan Stern <stern@...land.harvard.edu> wrote:
> > > You might also want to #define VERBOSE_DEBUG at the start of
> > > drivers/usb/core/driver.c, before the first #include.
> >
> > Still no difference... (will retry with own printk's in ohci's suspend
> > code as suggested in other mail)
>
> First of all, have you tried disabling async suspend? Look at
> /sys/power/pm_async.
>
> > Suspend output as it goes:
>
> Let's just look at the USB entries:
>
> > [ 241.358651] usb usb1: preparing type suspend, may wakeup
> > [ 241.364247] usb usb2: preparing type suspend, may wakeup
> > [ 241.369847] usb usb3: preparing type suspend, may wakeup
> > [ 241.375443] usb usb4: preparing type suspend, may wakeup
> > [ 241.381044] usb usb5: preparing type suspend, may wakeup
> > [ 241.386643] usb usb6: preparing type suspend, may wakeup
> > [ 241.392244] usb 1-2: preparing type suspend, may wakeup
> > [ 241.397762] usb 1-2.1: preparing type suspend, may wakeup
>
> Those are normal.
>
> > [ 241.407504] usbhid 1-2.1:1.1: suspend
> > [ 241.407511] usbhid 1-2.1:1.0: suspend
>
> These are HID suspends for the keyboard and mouse interfaces.
>
> > [ 241.407516] usb 1-2.1: type suspend, may wakeup
>
> This is a USB suspend for the KB/mouse device.
>
> > [ 241.443340] hub 1-2:1.0: suspend
>
> Suspend for the embedded hub interface. Next we should see
>
> [....] usb 1-2: type suspend, may wakeup
>
> for the embedded hub device, but we don't. That's the problem. It
> must be waiting for something -- goodness knows what.
Could have to do with the node that hid can't initialize?
> > [ 241.911502] hub 6-0:1.0: suspend
> > [ 241.914928] usb usb6: type suspend, may wakeup
> > [ 241.919583] usb usb6: usb_suspend_both: status 0
> > [ 241.924448] usb usb6: suspend, may wakeup
> > [ 241.928663] hub 5-0:1.0: suspend
> > [ 241.932082] usb usb5: type suspend, may wakeup
> > [ 241.936794] usb usb5: usb_suspend_both: status 0
> > [ 241.941669] usb usb5: suspend, may wakeup
> > [ 241.945888] hub 4-0:1.0: suspend
> > [ 241.949294] usb usb4: type suspend, may wakeup
> > [ 241.953966] usb usb4: usb_suspend_both: status 0
> > [ 241.958814] usb usb4: suspend, may wakeup
> > [ 241.963069] hub 3-0:1.0: suspend
> > [ 241.966452] usb usb3: type suspend, may wakeup
> > [ 241.971126] usb usb3: usb_suspend_both: status 0
> > [ 241.976015] usb usb3: suspend, may wakeup
> > [ 241.980232] hub 2-0:1.0: suspend
> > [ 241.983662] usb usb2: type suspend, may wakeup
> > [ 241.988316] usb usb2: usb_suspend_both: status 0
> > [ 241.993192] usb usb2: suspend, may wakeup
> > [ 241.997418] hub 1-0:1.0: suspend
>
> And here we should see
>
> [....] usb usb1: type suspend, may wakeup
> etc.
>
> but we don't, because it's waiting for the 1-2 device.
>
> > [ 242.125768] ehci_hcd 0000:00:13.5: suspend
> > [ 242.130076] ehci_hcd 0000:00:13.5: PCI INT D disabled
> > [ 242.135410] ohci_hcd 0000:00:13.4: suspend
> > [ 242.139696] ohci_hcd 0000:00:13.4: PCI INT C disabled
> > [ 242.145035] ohci_hcd 0000:00:13.3: suspend
> > [ 242.149348] ohci_hcd 0000:00:13.3: PCI INT B disabled
> > [ 242.154705] ohci_hcd 0000:00:13.2: suspend
> > [ 242.159012] ohci_hcd 0000:00:13.2: PCI INT C disabled
> > [ 242.164342] ohci_hcd 0000:00:13.1: suspend
> > [ 242.168676] ohci_hcd 0000:00:13.1: PCI INT B disabled
>
> > I guess here PM is waiting for ohci_hcd 0000:00:13.0 to suspend
> > and disable its interrupt.
> > (and that last ohci device would match the usbhid_resume thread that's
> > frozen...)
>
> The 0000:00:13.0 device can't suspend until usb1 does, and usb1 can't
> suspend until 1-2 does.
>
> Can you boot the dmesg log for bootup and device detection? It may
> indicate what we're missing. Also include the contents of
> /sys/kernel/debug/usb/devices.
T: Bus=06 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0
D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=1d6b ProdID=0001 Rev= 2.06
S: Manufacturer=Linux 2.6.34-rc6 ohci_hcd
S: Product=OHCI Host Controller
S: SerialNumber=0000:00:13.4
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 2 Ivl=255ms
T: Bus=05 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0
D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=1d6b ProdID=0001 Rev= 2.06
S: Manufacturer=Linux 2.6.34-rc6 ohci_hcd
S: Product=OHCI Host Controller
S: SerialNumber=0000:00:13.3
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 2 Ivl=255ms
T: Bus=04 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0
D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=1d6b ProdID=0001 Rev= 2.06
S: Manufacturer=Linux 2.6.34-rc6 ohci_hcd
S: Product=OHCI Host Controller
S: SerialNumber=0000:00:13.2
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 2 Ivl=255ms
T: Bus=03 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0
D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=1d6b ProdID=0001 Rev= 2.06
S: Manufacturer=Linux 2.6.34-rc6 ohci_hcd
S: Product=OHCI Host Controller
S: SerialNumber=0000:00:13.1
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 2 Ivl=255ms
T: Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
B: Alloc= 2/900 us ( 0%), #Int= 2, #Iso= 0
D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=1d6b ProdID=0001 Rev= 2.06
S: Manufacturer=Linux 2.6.34-rc6 ohci_hcd
S: Product=OHCI Host Controller
S: SerialNumber=0000:00:13.0
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 2 Ivl=255ms
T: Bus=02 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 2 Spd=12 MxCh= 3
D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=058f ProdID=9462 Rev= 1.58
S: Manufacturer=Multimedia USB Keyboard
S: Product=Multimedia USB Keyboard
C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr= 50mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 1 Ivl=255ms
T: Bus=02 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 3 Spd=12 MxCh= 0
D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=058f ProdID=9462 Rev= 4.10
S: Manufacturer=Multimedia USB Keyboard
S: Product=Multimedia USB Keyboard
S: SerialNumber=Multimedia USB Keyboard
C:* #Ifs= 2 Cfg#= 1 Atr=a0 MxPwr= 50mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=01 Prot=01 Driver=usbhid
E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=10ms
I:* If#= 1 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=00 Prot=00 Driver=usbhid
E: Ad=82(I) Atr=03(Int.) MxPS= 4 Ivl=255ms
T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh=10
B: Alloc= 0/800 us ( 0%), #Int= 0, #Iso= 0
D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=1d6b ProdID=0002 Rev= 2.06
S: Manufacturer=Linux 2.6.34-rc6 ehci_hcd
S: Product=EHCI Host Controller
S: SerialNumber=0000:00:13.5
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 4 Ivl=256ms
Loading ubs support, ehci, then ohci:
[ 500.990545] usbcore: registered new interface driver usbfs
[ 500.996467] usbcore: registered new interface driver hub
[ 501.002309] usbcore: registered new device driver usb
[ 501.013910] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 501.021013] ehci_hcd 0000:00:13.5: PCI INT D -> GSI 19 (level, low) -> IRQ 19
[ 501.028714] ehci_hcd 0000:00:13.5: EHCI Host Controller
[ 501.034360] ehci_hcd 0000:00:13.5: new USB bus registered, assigned bus number 1
[ 501.042385] ehci_hcd 0000:00:13.5: applying AMD SB600/SB700 USB freeze workaround
[ 501.050441] ehci_hcd 0000:00:13.5: debug port 1
[ 501.055359] ehci_hcd 0000:00:13.5: irq 19, io mem 0xfdbff000
[ 501.072526] ehci_hcd 0000:00:13.5: USB 2.0 started, EHCI 1.00
[ 501.078619] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 501.085805] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 501.093407] usb usb1: Product: EHCI Host Controller
[ 501.093411] usb usb1: Manufacturer: Linux 2.6.34-rc6 ehci_hcd
[ 501.093413] usb usb1: SerialNumber: 0000:00:13.5
[ 501.093550] hub 1-0:1.0: USB hub found
[ 501.093554] hub 1-0:1.0: 10 ports detected
[ 505.900903] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 505.907619] ohci_hcd 0000:00:13.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[ 505.915332] ohci_hcd 0000:00:13.0: OHCI Host Controller
[ 505.920972] ohci_hcd 0000:00:13.0: new USB bus registered, assigned bus number 2
[ 505.928986] ohci_hcd 0000:00:13.0: irq 16, io mem 0xfdbfe000
[ 505.994238] usb usb2: New USB device found, idVendor=1d6b, idProduct=0001
[ 506.001566] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 506.009324] usb usb2: Product: OHCI Host Controller
[ 506.014570] usb usb2: Manufacturer: Linux 2.6.34-rc6 ohci_hcd
[ 506.020765] usb usb2: SerialNumber: 0000:00:13.0
[ 506.026022] hub 2-0:1.0: USB hub found
[ 506.030071] hub 2-0:1.0: 2 ports detected
[ 506.034578] ohci_hcd 0000:00:13.1: PCI INT B -> GSI 17 (level, low) -> IRQ 17
[ 506.042275] ohci_hcd 0000:00:13.1: OHCI Host Controller
[ 506.047902] ohci_hcd 0000:00:13.1: new USB bus registered, assigned bus number 3
[ 506.055896] ohci_hcd 0000:00:13.1: irq 17, io mem 0xfdbfd000
[ 506.134192] usb usb3: New USB device found, idVendor=1d6b, idProduct=0001
[ 506.141497] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 506.149235] usb usb3: Product: OHCI Host Controller
[ 506.154478] usb usb3: Manufacturer: Linux 2.6.34-rc6 ohci_hcd
[ 506.160678] usb usb3: SerialNumber: 0000:00:13.1
[ 506.165828] hub 3-0:1.0: USB hub found
[ 506.169878] hub 3-0:1.0: 2 ports detected
[ 506.174395] ohci_hcd 0000:00:13.2: PCI INT C -> GSI 18 (level, low) -> IRQ 18
[ 506.182086] ohci_hcd 0000:00:13.2: OHCI Host Controller
[ 506.187720] ohci_hcd 0000:00:13.2: new USB bus registered, assigned bus number 4
[ 506.195708] ohci_hcd 0000:00:13.2: irq 18, io mem 0xfdbfc000
[ 506.254208] usb usb4: New USB device found, idVendor=1d6b, idProduct=0001
[ 506.261519] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 506.269280] usb usb4: Product: OHCI Host Controller
[ 506.274528] usb usb4: Manufacturer: Linux 2.6.34-rc6 ohci_hcd
[ 506.280724] usb usb4: SerialNumber: 0000:00:13.2
[ 506.285923] hub 4-0:1.0: USB hub found
[ 506.289957] hub 4-0:1.0: 2 ports detected
[ 506.294479] ohci_hcd 0000:00:13.3: PCI INT B -> GSI 17 (level, low) -> IRQ 17
[ 506.302171] ohci_hcd 0000:00:13.3: OHCI Host Controller
[ 506.307804] ohci_hcd 0000:00:13.3: new USB bus registered, assigned bus number 5
[ 506.315770] ohci_hcd 0000:00:13.3: irq 17, io mem 0xfdbfb000
[ 506.384187] usb usb5: New USB device found, idVendor=1d6b, idProduct=0001
[ 506.391508] usb usb5: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 506.399278] usb usb5: Product: OHCI Host Controller
[ 506.404518] usb usb5: Manufacturer: Linux 2.6.34-rc6 ohci_hcd
[ 506.410704] usb usb5: SerialNumber: 0000:00:13.3
[ 506.415903] hub 5-0:1.0: USB hub found
[ 506.419919] hub 5-0:1.0: 2 ports detected
[ 506.424444] ohci_hcd 0000:00:13.4: PCI INT C -> GSI 18 (level, low) -> IRQ 18
[ 506.432135] ohci_hcd 0000:00:13.4: OHCI Host Controller
[ 506.437771] ohci_hcd 0000:00:13.4: new USB bus registered, assigned bus number 6
[ 506.445745] ohci_hcd 0000:00:13.4: irq 18, io mem 0xfdbfa000
[ 506.462564] usb 2-2: new full speed USB device using ohci_hcd and address 2
[ 506.514186] usb usb6: New USB device found, idVendor=1d6b, idProduct=0001
[ 506.521527] usb usb6: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 506.529289] usb usb6: Product: OHCI Host Controller
[ 506.534519] usb usb6: Manufacturer: Linux 2.6.34-rc6 ohci_hcd
[ 506.540740] usb usb6: SerialNumber: 0000:00:13.4
[ 506.545966] hub 6-0:1.0: USB hub found
[ 506.550025] hub 6-0:1.0: 2 ports detected
[ 506.679090] usb 2-2: New USB device found, idVendor=058f, idProduct=9462
[ 506.686284] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 506.693954] usb 2-2: Product: Multimedia USB Keyboard
[ 506.699410] usb 2-2: Manufacturer: Multimedia USB Keyboard
[ 506.700520] hub 2-2:1.0: USB hub found
[ 506.704102] hub 2-2:1.0: 3 ports detected
[ 506.991083] usb 2-2.1: new full speed USB device using ohci_hcd and address 3
[ 507.159086] usb 2-2.1: New USB device found, idVendor=058f, idProduct=9462
[ 507.166464] usb 2-2.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 507.174345] usb 2-2.1: Product: Multimedia USB Keyboard
[ 507.179965] usb 2-2.1: Manufacturer: Multimedia USB Keyboard
[ 507.186051] usb 2-2.1: SerialNumber: Multimedia USB Keyboard
[ 507.230896] input: Multimedia USB Keyboard Multimedia USB Keyboard as /devices/pci0000:00/0000:00:13.0/u4
[ 507.244547] generic-usb 0003:058F:9462.0001: input: USB HID v1.10 Keyboard [Multimedia USB Keyboard Mult0
[ 507.288737] generic-usb: probe of 0003:058F:9462.0002 failed with error -22
^^^^^ this one was causing resume trouble in .33-rc
but has been fix since then.
c.f. thread http://lkml.org/lkml/2010/2/8/179
[ 507.296280] usbcore: registered new interface driver usbhid
[ 507.302242] usbhid: USB HID core driver
New suspend attempt, with a few printks added and async disabled:
...
[ 1280.630812] usb usb1: preparing type suspend, may wakeup
[ 1280.636435] usb usb2: preparing type suspend, may wakeup
[ 1280.642016] usb usb3: preparing type suspend, may wakeup
[ 1280.647631] usb usb4: preparing type suspend, may wakeup
[ 1280.653229] usb usb5: preparing type suspend, may wakeup
[ 1280.658813] usb usb6: preparing type suspend, may wakeup
[ 1280.664408] usb 2-2: preparing type suspend, may wakeup
[ 1280.669886] usb 2-2.1: preparing type suspend, may wakeup
[ 1280.675577] input input4: type suspend
[ 1280.679538] usbhid 2-2.1:1.1: suspend
[ 1280.683415] usbhid 2-2.1:1.0: suspend
[ 1280.687266] usb 2-2.1: type suspend, may wakeup
[ 1280.692044] hid 0003:058F:9462.0002: Suspending HID device...
So yeah, for some reason hid fails to suspend this device.
It's blocking somewhere in hid_suspend() of usbhid/hid-core.c
between function start and including call to hid_cease_io().
Going to add more printks in there in the hope to get more precise
location, also adding debug param to hid.ko ...
Bruno
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