* Re: [b43] usb device disconnects automatically after 1s [not found] <201103170018.32061.mihai.dontu@gmail.com> @ 2011-03-16 22:22 ` Mihai Donțu 2011-03-16 22:35 ` Rafał Miłecki 0 siblings, 1 reply; 8+ messages in thread From: Mihai Donțu @ 2011-03-16 22:22 UTC (permalink / raw) To: linux-kernel; +Cc: linux-usb, linux-wireless [-- Attachment #1: Type: Text/Plain, Size: 680 bytes --] Added linux-usb and linux-wireless to CC. On Thursday 17 March 2011 00:18:31 Mihai Donțu wrote: > Hi, > > I have just upgraded to 2.6.38 and discovered that I can't use my wireless > device (BCM4312 802.11a/b/g). I press Fn + F2, the bluetooth led lights > and after a second it turns off by itself. In dmesg I'm seeing the > following: > > [ 88.167212] usb 1-2.2: new full speed USB device using ehci_hcd and > address 5 > [ 88.782330] usb 1-2.2: USB disconnect, address 5 > > I switched to 2.6.37 until I'll have some time to bisect this. In the mean > time I have attached the output of lspci, interrupts and dmesg. > > Thanks, -- Mihai Donțu [-- Attachment #2: interrupts.txt --] [-- Type: text/plain, Size: 1563 bytes --] CPU0 CPU1 0: 185247 0 IO-APIC-edge timer 1: 3764 0 IO-APIC-edge i8042 8: 18 0 IO-APIC-edge rtc0 9: 3 0 IO-APIC-fasteoi acpi 12: 106 0 IO-APIC-edge i8042 14: 28675 0 IO-APIC-edge ata_piix 15: 4047 0 IO-APIC-edge ata_piix 16: 30275 0 IO-APIC-fasteoi i915 17: 27542 0 IO-APIC-fasteoi eth0, b43 19: 31 0 IO-APIC-fasteoi firewire_ohci, yenta 20: 60 0 IO-APIC-fasteoi ehci_hcd:usb1, uhci_hcd:usb2 21: 0 0 IO-APIC-fasteoi uhci_hcd:usb3 22: 16401 0 IO-APIC-fasteoi uhci_hcd:usb4 23: 0 0 IO-APIC-fasteoi uhci_hcd:usb5 40: 391 0 PCI-MSI-edge hda_intel NMI: 0 0 Non-maskable interrupts LOC: 202224 259238 Local timer interrupts SPU: 0 0 Spurious interrupts PMI: 0 0 Performance monitoring interrupts IWI: 0 0 IRQ work interrupts RES: 123639 198860 Rescheduling interrupts CAL: 1252 1055 Function call interrupts TLB: 3962 2590 TLB shootdowns TRM: 0 0 Thermal event interrupts THR: 0 0 Threshold APIC interrupts MCE: 0 0 Machine check exceptions MCP: 5 5 Machine check polls ERR: 1 MIS: 0 [-- Attachment #3: lspci.txt --] [-- Type: text/plain, Size: 7435 bytes --] 00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub (rev 03) Subsystem: Dell Device 01d4 Flags: bus master, fast devsel, latency 0 Capabilities: [e0] Vendor Specific Information: Len=09 <?> Kernel driver in use: agpgart-intel 00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03) (prog-if 00 [VGA controller]) Subsystem: Dell Device 01d4 Flags: bus master, fast devsel, latency 0, IRQ 16 Memory at eff00000 (32-bit, non-prefetchable) [size=512K] I/O ports at eff8 [size=8] Memory at d0000000 (32-bit, prefetchable) [size=256M] Memory at efec0000 (32-bit, non-prefetchable) [size=256K] Expansion ROM at <unassigned> [disabled] Capabilities: [90] MSI: Enable- Count=1/1 Maskable- 64bit- Capabilities: [d0] Power Management version 2 Kernel driver in use: i915 00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03) Subsystem: Dell Device 01d4 Flags: bus master, fast devsel, latency 0 Memory at eff80000 (32-bit, non-prefetchable) [size=512K] Capabilities: [d0] Power Management version 2 00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 01) Subsystem: Dell Device 01d4 Flags: bus master, fast devsel, latency 0, IRQ 40 Memory at efebc000 (64-bit, non-prefetchable) [size=16K] Capabilities: [50] Power Management version 2 Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+ Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00 Capabilities: [100] Virtual Channel Capabilities: [130] Root Complex Link Kernel driver in use: HDA Intel 00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 (rev 01) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=0b, subordinate=0b, sec-latency=0 I/O behind bridge: 00002000-00002fff Memory behind bridge: e4000000-e41fffff Prefetchable memory behind bridge: 00000000e4200000-00000000e43fffff Capabilities: [40] Express Root Port (Slot+), MSI 00 Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit- Capabilities: [90] Subsystem: Dell Device 01d4 Capabilities: [a0] Power Management version 2 Capabilities: [100] Virtual Channel Capabilities: [180] Root Complex Link 00:1c.1 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 2 (rev 01) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=0c, subordinate=0c, sec-latency=0 I/O behind bridge: 00003000-00003fff Memory behind bridge: efd00000-efdfffff Prefetchable memory behind bridge: 00000000e4400000-00000000e45fffff Capabilities: [40] Express Root Port (Slot+), MSI 00 Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit- Capabilities: [90] Subsystem: Dell Device 01d4 Capabilities: [a0] Power Management version 2 Capabilities: [100] Virtual Channel Capabilities: [180] Root Complex Link 00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #1 (rev 01) (prog-if 00 [UHCI]) Subsystem: Dell Device 01d4 Flags: bus master, medium devsel, latency 0, IRQ 20 I/O ports at bf80 [size=32] Kernel driver in use: uhci_hcd 00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #2 (rev 01) (prog-if 00 [UHCI]) Subsystem: Dell Device 01d4 Flags: bus master, medium devsel, latency 0, IRQ 21 I/O ports at bf60 [size=32] Kernel driver in use: uhci_hcd 00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #3 (rev 01) (prog-if 00 [UHCI]) Subsystem: Dell Device 01d4 Flags: bus master, medium devsel, latency 0, IRQ 22 I/O ports at bf40 [size=32] Kernel driver in use: uhci_hcd 00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #4 (rev 01) (prog-if 00 [UHCI]) Subsystem: Dell Device 01d4 Flags: bus master, medium devsel, latency 0, IRQ 23 I/O ports at bf20 [size=32] Kernel driver in use: uhci_hcd 00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller (rev 01) (prog-if 20 [EHCI]) Subsystem: Dell Device 01d4 Flags: bus master, medium devsel, latency 0, IRQ 20 Memory at ffa80000 (32-bit, non-prefetchable) [size=1K] Capabilities: [50] Power Management version 2 Capabilities: [58] Debug port: BAR=1 offset=00a0 Kernel driver in use: ehci_hcd 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e1) (prog-if 01 [Subtractive decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=02, subordinate=06, sec-latency=32 I/O behind bridge: 00004000-00004fff Memory behind bridge: efc00000-efcfffff Prefetchable memory behind bridge: 00000000e0000000-00000000e3ffffff Capabilities: [50] Subsystem: Dell Device 01d4 00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 01) Subsystem: Dell Device 01d4 Flags: bus master, medium devsel, latency 0 Capabilities: [e0] Vendor Specific Information: Len=0c <?> 00:1f.2 IDE interface: Intel Corporation 82801GBM/GHM (ICH7 Family) SATA IDE Controller (rev 01) (prog-if 80 [Master]) Subsystem: Dell Device 01d4 Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 17 I/O ports at 01f0 [size=8] I/O ports at 03f4 [size=1] I/O ports at 0170 [size=8] I/O ports at 0374 [size=1] I/O ports at bfa0 [size=16] Capabilities: [70] Power Management version 2 Kernel driver in use: ata_piix 00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 01) Subsystem: Dell Device 01d4 Flags: medium devsel, IRQ 17 I/O ports at 10c0 [size=32] Kernel driver in use: i801_smbus 02:00.0 Ethernet controller: Broadcom Corporation BCM4401-B0 100Base-TX (rev 02) Subsystem: Dell Device 01d4 Flags: bus master, fast devsel, latency 64, IRQ 17 Memory at efcfe000 (32-bit, non-prefetchable) [size=8K] Capabilities: [40] Power Management version 2 Kernel driver in use: b44 02:01.0 CardBus bridge: O2 Micro, Inc. Cardbus bridge (rev 21) Subsystem: Dell Device 01d4 Flags: bus master, stepping, slow devsel, latency 168, IRQ 19 Memory at efc00000 (32-bit, non-prefetchable) [size=4K] Bus: primary=02, secondary=03, subordinate=06, sec-latency=176 Memory window 0: e0000000-e3fff000 (prefetchable) Memory window 1: e8000000-ebfff000 I/O window 0: 00004000-000040ff I/O window 1: 00004400-000044ff 16-bit legacy interface ports at 0001 Kernel driver in use: yenta_cardbus 02:01.4 FireWire (IEEE 1394): O2 Micro, Inc. Firewire (IEEE 1394) (rev 02) (prog-if 10 [OHCI]) Subsystem: Dell Device 01d4 Flags: bus master, medium devsel, latency 64, IRQ 19 Memory at efcfd000 (32-bit, non-prefetchable) [size=4K] Memory at efcfc800 (32-bit, non-prefetchable) [size=2K] Capabilities: [60] Power Management version 2 Kernel driver in use: firewire_ohci 0c:00.0 Network controller: Broadcom Corporation BCM4312 802.11a/b/g (rev 01) Subsystem: Dell Wireless 1490 Dual Band WLAN Mini-Card Flags: bus master, fast devsel, latency 0, IRQ 17 Memory at efdfc000 (32-bit, non-prefetchable) [size=16K] Capabilities: [40] Power Management version 2 Capabilities: [58] MSI: Enable- Count=1/1 Maskable- 64bit- Capabilities: [d0] Express Legacy Endpoint, MSI 00 Capabilities: [100] Advanced Error Reporting Capabilities: [13c] Virtual Channel Kernel driver in use: b43-pci-bridge [-- Attachment #4: dmesg.txt.gz --] [-- Type: application/x-gzip, Size: 16922 bytes --] ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [b43] usb device disconnects automatically after 1s 2011-03-16 22:22 ` [b43] usb device disconnects automatically after 1s Mihai Donțu @ 2011-03-16 22:35 ` Rafał Miłecki 2011-03-16 23:06 ` Mihai Donțu 0 siblings, 1 reply; 8+ messages in thread From: Rafał Miłecki @ 2011-03-16 22:35 UTC (permalink / raw) To: Mihai Donțu; +Cc: linux-kernel, linux-usb, linux-wireless 2011/3/16 Mihai Donțu <mihai.dontu@gmail.com>: > Added linux-usb and linux-wireless to CC. > > On Thursday 17 March 2011 00:18:31 Mihai Donțu wrote: >> Hi, >> >> I have just upgraded to 2.6.38 and discovered that I can't use my wireless >> device (BCM4312 802.11a/b/g). I press Fn + F2, the bluetooth led lights >> and after a second it turns off by itself. In dmesg I'm seeing the >> following: >> >> [ 88.167212] usb 1-2.2: new full speed USB device using ehci_hcd and >> address 5 >> [ 88.782330] usb 1-2.2: USB disconnect, address 5 >> >> I switched to 2.6.37 until I'll have some time to bisect this. In the mean >> time I have attached the output of lspci, interrupts and dmesg. I suspect it's WMI related. What is your machine? Please check: https://bugzilla.kernel.org/show_bug.cgi?id=31002 http://comments.gmane.org/gmane.linux.acpi.devel/49577 I can't help you more, I just noticed such a issue reported on ACPI ML, you have to dig into this yourself (or someone else may help you). -- Rafał ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [b43] usb device disconnects automatically after 1s 2011-03-16 22:35 ` Rafał Miłecki @ 2011-03-16 23:06 ` Mihai Donțu 2011-03-17 1:11 ` Joey Lee 2011-03-17 2:36 ` Alan Stern 0 siblings, 2 replies; 8+ messages in thread From: Mihai Donțu @ 2011-03-16 23:06 UTC (permalink / raw) To: Rafał Miłecki; +Cc: linux-kernel, linux-usb, linux-wireless On Thursday 17 March 2011 00:35:02 Rafał Miłecki wrote: > 2011/3/16 Mihai Donțu <mihai.dontu@gmail.com>: > > Added linux-usb and linux-wireless to CC. > > > > On Thursday 17 March 2011 00:18:31 Mihai Donțu wrote: > >> Hi, > >> > >> I have just upgraded to 2.6.38 and discovered that I can't use my > >> wireless device (BCM4312 802.11a/b/g). I press Fn + F2, the bluetooth > >> led lights and after a second it turns off by itself. In dmesg I'm > >> seeing the following: > >> > >> [ 88.167212] usb 1-2.2: new full speed USB device using ehci_hcd and > >> address 5 > >> [ 88.782330] usb 1-2.2: USB disconnect, address 5 > >> > >> I switched to 2.6.37 until I'll have some time to bisect this. In the > >> mean time I have attached the output of lspci, interrupts and dmesg. > > I suspect it's WMI related. What is your machine? It's a Dell Latitude D520 but I can't find a link with full specs (in English). > Please check: > https://bugzilla.kernel.org/show_bug.cgi?id=31002 > http://comments.gmane.org/gmane.linux.acpi.devel/49577 > > I can't help you more, I just noticed such a issue reported on ACPI > ML, you have to dig into this yourself (or someone else may help you). Thanks for the links. I'll see if I can get anywhere from there. -- Mihai Donțu ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [b43] usb device disconnects automatically after 1s 2011-03-16 23:06 ` Mihai Donțu @ 2011-03-17 1:11 ` Joey Lee 2011-04-02 15:44 ` Mihai Donțu 2011-03-17 2:36 ` Alan Stern 1 sibling, 1 reply; 8+ messages in thread From: Joey Lee @ 2011-03-17 1:11 UTC (permalink / raw) To: mihai.dontu Cc: zajec5, linux-kernel, linux-usb, linux-wireless, platform-driver-x86 Add Cc. to platform driver guys. 於 四，2011-03-17 於 01:06 +0200，Mihai Donțu 提到： > On Thursday 17 March 2011 00:35:02 Rafał Miłecki wrote: > > 2011/3/16 Mihai Donțu <mihai.dontu@gmail.com>: > > > Added linux-usb and linux-wireless to CC. > > > > > > On Thursday 17 March 2011 00:18:31 Mihai Donțu wrote: > > >> Hi, > > >> > > >> I have just upgraded to 2.6.38 and discovered that I can't use my > > >> wireless device (BCM4312 802.11a/b/g). I press Fn + F2, the bluetooth > > >> led lights and after a second it turns off by itself. In dmesg I'm > > >> seeing the following: > > >> > > >> [ 88.167212] usb 1-2.2: new full speed USB device using ehci_hcd and > > >> address 5 > > >> [ 88.782330] usb 1-2.2: USB disconnect, address 5 > > >> > > >> I switched to 2.6.37 until I'll have some time to bisect this. In the > > >> mean time I have attached the output of lspci, interrupts and dmesg. > > > > I suspect it's WMI related. What is your machine? > > It's a Dell Latitude D520 but I can't find a link with full specs (in > English). > > > Please check: > > https://bugzilla.kernel.org/show_bug.cgi?id=31002 > > http://comments.gmane.org/gmane.linux.acpi.devel/49577 > > > > I can't help you more, I just noticed such a issue reported on ACPI > > ML, you have to dig into this yourself (or someone else may help you). > > Thanks for the links. I'll see if I can get anywhere from there. > ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [b43] usb device disconnects automatically after 1s 2011-03-17 1:11 ` Joey Lee @ 2011-04-02 15:44 ` Mihai Donțu 0 siblings, 0 replies; 8+ messages in thread From: Mihai Donțu @ 2011-04-02 15:44 UTC (permalink / raw) To: Joey Lee Cc: zajec5, linux-kernel, linux-usb, linux-wireless, platform-driver-x86 On Wed, 16 Mar 2011 19:11:31 -0600 "Joey Lee" <jlee@novell.com> wrote: > Add Cc. to platform driver guys. > > 於 四，2011-03-17 於 01:06 +0200，Mihai Donțu 提到： > > On Thursday 17 March 2011 00:35:02 Rafał Miłecki wrote: > > > 2011/3/16 Mihai Donțu <mihai.dontu@gmail.com>: > > > > Added linux-usb and linux-wireless to CC. > > > > > > > > On Thursday 17 March 2011 00:18:31 Mihai Donțu wrote: > > > >> Hi, > > > >> > > > >> I have just upgraded to 2.6.38 and discovered that I can't use > > > >> my wireless device (BCM4312 802.11a/b/g). I press Fn + F2, the > > > >> bluetooth led lights and after a second it turns off by > > > >> itself. In dmesg I'm seeing the following: > > > >> > > > >> [ 88.167212] usb 1-2.2: new full speed USB device using > > > >> ehci_hcd and address 5 > > > >> [ 88.782330] usb 1-2.2: USB disconnect, address 5 > > > >> > > > >> I switched to 2.6.37 until I'll have some time to bisect this. > > > >> In the mean time I have attached the output of lspci, > > > >> interrupts and dmesg. > > > > > > I suspect it's WMI related. What is your machine? > > > > It's a Dell Latitude D520 but I can't find a link with full specs > > (in English). > > > > > Please check: > > > https://bugzilla.kernel.org/show_bug.cgi?id=31002 > > > http://comments.gmane.org/gmane.linux.acpi.devel/49577 > > > > > > I can't help you more, I just noticed such a issue reported on > > > ACPI ML, you have to dig into this yourself (or someone else may > > > help you). > > > > Thanks for the links. I'll see if I can get anywhere from there. Today I had some time on my hands and decided to get this working. Which I did. So the difference between 2.6.37 and 2.6.38 is that now I have to invoke rfkill to enable my wireless device, because pressing Fn + F2 toggles the hard and soft lock states of the device _but_ only to 'yes'. Pressing the key combination again will only remove the hard lock. On 2.6.37 it would remove both. For example: On 2.6.37: # rfkill list 0 # wifi disabled 0: dell-wifi: Wireless LAN Soft blocked: yes Hard blocked: yes # rfkill list 0 # wifi enabled (via Fn + F2) 0: dell-wifi: Wireless LAN Soft blocked: no Hard blocked: no (rfkill events) 1301758599.537508: idx 0 type 1 op 2 soft 0 hard 0 1301758600.561087: idx 2 type 1 op 2 soft 0 hard 0 On 2.6.38: # rfkill list 0 # wifi disabled 0: dell-wifi: Wireless LAN Soft blocked: yes Hard blocked: yes # rfkill list 0 # wifi enabled (via Fn + F2) 0: dell-wifi: Wireless LAN Soft blocked: yes Hard blocked: no (rfkill events) 1301758830.251541: idx 0 type 1 op 2 soft 1 hard 0 Is there supposed to be a piece of software that listens for these events and toggles the soft state whenever the hard state changes? Thanks, -- Mihai Donțu ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [b43] usb device disconnects automatically after 1s 2011-03-16 23:06 ` Mihai Donțu 2011-03-17 1:11 ` Joey Lee @ 2011-03-17 2:36 ` Alan Stern 2011-03-18 22:48 ` Mihai Donțu 1 sibling, 1 reply; 8+ messages in thread From: Alan Stern @ 2011-03-17 2:36 UTC (permalink / raw) To: Mihai Donțu Cc: Rafał Miłecki, linux-kernel, linux-usb, linux-wireless On Thu, 17 Mar 2011, Mihai Donțu wrote: > On Thursday 17 March 2011 00:35:02 Rafał Miłecki wrote: > > 2011/3/16 Mihai Donțu <mihai.dontu@gmail.com>: > > > Added linux-usb and linux-wireless to CC. > > > > > > On Thursday 17 March 2011 00:18:31 Mihai Donțu wrote: > > >> Hi, > > >> > > >> I have just upgraded to 2.6.38 and discovered that I can't use my > > >> wireless device (BCM4312 802.11a/b/g). I press Fn + F2, the bluetooth > > >> led lights and after a second it turns off by itself. In dmesg I'm > > >> seeing the following: > > >> > > >> [ 88.167212] usb 1-2.2: new full speed USB device using ehci_hcd and > > >> address 5 > > >> [ 88.782330] usb 1-2.2: USB disconnect, address 5 > > >> > > >> I switched to 2.6.37 until I'll have some time to bisect this. In the > > >> mean time I have attached the output of lspci, interrupts and dmesg. > > > > I suspect it's WMI related. What is your machine? > > It's a Dell Latitude D520 but I can't find a link with full specs (in > English). > > > Please check: > > https://bugzilla.kernel.org/show_bug.cgi?id=31002 > > http://comments.gmane.org/gmane.linux.acpi.devel/49577 > > > > I can't help you more, I just noticed such a issue reported on ACPI > > ML, you have to dig into this yourself (or someone else may help you). > > Thanks for the links. I'll see if I can get anywhere from there. Another thing you can try is to get usbmon traces under both 2.6.37 and 2.6.38. Instructions are in the kernel source file Documentation/usb/usbmon.txt. Alan Stern ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [b43] usb device disconnects automatically after 1s 2011-03-17 2:36 ` Alan Stern @ 2011-03-18 22:48 ` Mihai Donțu 2011-03-19 1:38 ` Alan Stern 0 siblings, 1 reply; 8+ messages in thread From: Mihai Donțu @ 2011-03-18 22:48 UTC (permalink / raw) To: Alan Stern Cc: Rafał Miłecki, linux-kernel, linux-usb, linux-wireless [-- Attachment #1: Type: Text/Plain, Size: 1892 bytes --] On Thursday 17 March 2011 04:36:54 Alan Stern wrote: > On Thu, 17 Mar 2011, Mihai Donțu wrote: > > On Thursday 17 March 2011 00:35:02 Rafał Miłecki wrote: > > > 2011/3/16 Mihai Donțu <mihai.dontu@gmail.com>: > > > > Added linux-usb and linux-wireless to CC. > > > > > > > > On Thursday 17 March 2011 00:18:31 Mihai Donțu wrote: > > > >> Hi, > > > >> > > > >> I have just upgraded to 2.6.38 and discovered that I can't use my > > > >> wireless device (BCM4312 802.11a/b/g). I press Fn + F2, the > > > >> bluetooth led lights and after a second it turns off by itself. In > > > >> dmesg I'm seeing the following: > > > >> > > > >> [ 88.167212] usb 1-2.2: new full speed USB device using ehci_hcd > > > >> and address 5 > > > >> [ 88.782330] usb 1-2.2: USB disconnect, address 5 > > > >> > > > >> I switched to 2.6.37 until I'll have some time to bisect this. In > > > >> the mean time I have attached the output of lspci, interrupts and > > > >> dmesg. > > > > > > I suspect it's WMI related. What is your machine? > > > > It's a Dell Latitude D520 but I can't find a link with full specs (in > > English). > > > > > Please check: > > > https://bugzilla.kernel.org/show_bug.cgi?id=31002 > > > http://comments.gmane.org/gmane.linux.acpi.devel/49577 > > > > > > I can't help you more, I just noticed such a issue reported on ACPI > > > ML, you have to dig into this yourself (or someone else may help you). > > > > Thanks for the links. I'll see if I can get anywhere from there. > > Another thing you can try is to get usbmon traces under both 2.6.37 and > 2.6.38. Instructions are in the kernel source file > Documentation/usb/usbmon.txt. I'm unable to get a usbmon dump on 2.6.37. Strangely, the only USB device making noise (on 0u) is my mouse's wireless receiver. I had no such problem on 2.6.38 though. -- Mihai Donțu [-- Attachment #2: 2.6.37-config.gz --] [-- Type: application/x-gzip, Size: 17816 bytes --] [-- Attachment #3: 2.6.37-lsusb.txt.gz --] [-- Type: application/x-gzip, Size: 2117 bytes --] [-- Attachment #4: 2.6.38-1.mon.out.gz --] [-- Type: application/x-gzip, Size: 951 bytes --] ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [b43] usb device disconnects automatically after 1s 2011-03-18 22:48 ` Mihai Donțu @ 2011-03-19 1:38 ` Alan Stern 0 siblings, 0 replies; 8+ messages in thread From: Alan Stern @ 2011-03-19 1:38 UTC (permalink / raw) To: Mihai Donțu Cc: Rafał Miłecki, linux-kernel, linux-usb, linux-wireless On Sat, 19 Mar 2011, Mihai Donțu wrote: > > Another thing you can try is to get usbmon traces under both 2.6.37 and > > 2.6.38. Instructions are in the kernel source file > > Documentation/usb/usbmon.txt. > > I'm unable to get a usbmon dump on 2.6.37. Strangely, the only USB device > making noise (on 0u) is my mouse's wireless receiver. I had no such problem on > 2.6.38 though. I noticed your config has CONFIG_USB_EHCI_TT_NEWSCHED disabled. You really should enable it (although I doubt that it is responsible for this problem, since 2.6.37 works without it). The 2.6.38 usbmon trace shows pretty much what you might expect: The device connects and is initialized and enumerated normally, then 2 seconds later it disconnects. We really need to see a 2.6.37 usbmon trace to compare for differences. Can you try again? If usbmon isn't working, there's something _very_ strange going on. Alan Stern ^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2011-04-02 15:44 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz follow: Atom feed
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[not found] <201103170018.32061.mihai.dontu@gmail.com>
2011-03-16 22:22 ` [b43] usb device disconnects automatically after 1s Mihai Donțu
2011-03-16 22:35 ` Rafał Miłecki
2011-03-16 23:06 ` Mihai Donțu
2011-03-17 1:11 ` Joey Lee
2011-04-02 15:44 ` Mihai Donțu
2011-03-17 2:36 ` Alan Stern
2011-03-18 22:48 ` Mihai Donțu
2011-03-19 1:38 ` Alan Stern
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