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SubjectPROBLEM: EHCI Driver hard-locks system when USB devices plugged. (2.4.21 & 2.6.0-test2)
I'm sure you guys in this list just thrill with delight when a bug 
report comes in. Keeping that in mind, I have attempted to make this the
most complete bug-report possible. I am using the template for bug
reports that is in the root of the source tree. (If there is too much
here, sorry... Just following the bug report template.)

NOTE: Please CC messages about this to me, since I can't stay on the
mailing list for long.

This problem has occurred with all of the recent kernels that I have
tested. This includes 2.4.X and 2.6.0-testX.

Please note that most of the diagnostics preformed as per the template's
recommendations were preformed while running 2.4.21.

The kernel boot messages were copied by hand from 2.6.0-test2, with USB
verbose debugging and kernel debugging turned on. (Copied by hand
because you can't cut/paste on a crashed kernel.) (Don't make me swear
by every jot and tiddle in those messages, since I copied 'em by hand. I
am confident, however, that the important stuff is right.)

BEGIN BOOT MESSAGES
2.6.0-test2
ehci_hcd 0000:00:1d.7: Intel Corp. 82801DB USB EHCI Con
ehci_hcd 0000:00:1d.7: irq 23, pci mem e5823c00
ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 1
ehci_hcd 0000:00:1d.7: enabled 64bit PCI DMA
PCI: cache line size of 128 is not supported by device 0000:00:1d.7
ehci_hcd 0000:00:1d.7: USB 2.0 enabled, EHCI 1.00, driver 2003-Jun-13
2.4.21
ehci-hcd 00:1d.7: Intel Corp. 82801DB USB EHCI Controller
ehci-hcd 00:1d.7: irq 23, pci mem e0829c00
usb.c: new USB bus registered, assigned bus number 1
ehci-hcd 00:1d.7: enabled 64bit PCI DMA
PCI 00:1d.7 PCI cache line size set incorrectly (0 bytes) by BIOS/FW.
PCI 00:1d.7 PCI cache line size corrected to 128.
ehci-hcd 00:1d.7: USB 2.0 enabled, EHCI 1.00, driver 2003-Jan-22
END BOOT MESSAGES

BEGIN FILLED-OUT TEMPLATE
[1.] One line summary of the problem:
PROBLEM: EHCI Driver hard-locks system when USB devices plugged.
(>=2.4.X)

[2.] Full description of the problem/report:
This problem applies to all 2.4 kernels that I've tried, and
2.6.0-test2. When I have EHCI built in, and I have USB devices plugged
in, the kernel never gets past initializing EHCI. If I boot without USB
devices, and plug them in after the booting process, the system
hard-locks wherever it was. (No console, no network, no disk activity,
nothing.)

[3.] Keywords:
USB, EHCI, 2.4, 2.6, kernel, bug, crash

[4.] Kernel version (from /proc/version):
2.4:
[root@elbmin3 usb]# cat /proc/version
Linux version 2.4.21 (root@elbmin3) (gcc version 3.2.2 20030222 (Red Hat
Linux 3.2.2-5)) #2 SMP Wed Jul 30 16:56:41 EDT 2003
[root@elbmin3 usb]#
2.6:
[root@elbmin3 root]$ cat /proc/version
Linux version 2.6.0-test2 (root@elbmin3) (gcc version 3.2.2 20030222
(Red Hat Linux 3.2.2-5)) #3 SMP Sun Aug 10 19:37:59 EDT 2003
[root@elbmin3 root]$

[5.] Output of Oops.. message
No Oops is generated by this. No error messages are generated at all,
as a matter of fact.

[6.] A small shell script or example program which triggers the problem
Step 1. Run linux on my crappy intel hardware.
Step 2. Plug in USB2 device.
Step 3. Weep over lost work.
Step 4. GOTO Step 1.

[7.] Environment
Not actually sure how to go about gathering relevent info, so I'll
continue to follow the directions.

[7.1.] Software (add the output of the ver_linux script here)
This is my system running the 2.4.X kernel. I assume that most of the
info doesn't change when a new kernel is built and used.
[root@elbmin3 scripts]# sh ./ver_linux
If some fields are empty or look unusual you may have an old version.
Compare to the current minimal requirements in Documentation/Changes.

Linux elbmin3 2.4.21 #2 SMP Wed Jul 30 16:56:41 EDT 2003 i686 i686 i386
GNU/Linux

Gnu C 3.2.2
Gnu make 3.79.1
util-linux 2.11y
mount 2.11y
module-init-tools 2.4.22
e2fsprogs 1.32
jfsutils 1.0.17
reiserfsprogs 3.6.4
pcmcia-cs 3.1.31
quota-tools 3.06.
PPP 2.4.1
isdn4k-utils 3.1pre4
nfs-utils 1.0.1
Linux C Library 2.3.2
Dynamic linker (ldd) 2.3.2
Procps 2.0.11
Net-tools 1.60
Kbd 1.08
Sh-utils 4.5.3
Modules Loaded nvidia vmnet vmmon
[root@elbmin3 scripts]#

[7.2.] Processor information (from /proc/cpuinfo):
My stupid p4.
[root@elbmin3 scripts]# cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 2
model name : Intel(R) Pentium(R) 4 CPU 2.40GHz
stepping : 4
cpu MHz : 2400.153
cache size : 512 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm
bogomips : 4784.12

[root@elbmin3 scripts]#

[7.3.] Module information (from /proc/modules):
Yes, I like big kernels.
[root@elbmin3 scripts]# cat /proc/modules
nvidia 1670816 10 (autoclean)
vmnet 26656 1
vmmon 25268 0 (unused)
[root@elbmin3 scripts]#

[7.4.] Loaded driver and hardware information (/proc/ioports, /proc/iomem)
Here, I do not have EHCI built into the running kernel, since I can't
hardly boot the system using my USB-centric setup.
[root@elbmin3 scripts]# cat /proc/ioports
0000-001f : dma1
0020-003f : pic1
0040-005f : timer
0060-006f : keyboard
0070-007f : rtc
0080-008f : dma page reg
00a0-00bf : pic2
00c0-00df : dma2
00f0-00ff : fpu
0170-0177 : ide1
01f0-01f7 : ide0
02f8-02ff : serial(auto)
0376-0376 : ide1
0378-037a : parport0
037b-037f : parport0
03c0-03df : vga+
03f6-03f6 : ide0
03f8-03ff : serial(auto)
0778-077a : parport0
0c00-0c1f : Intel Corp. 82801DB SMBus
0cf8-0cff : PCI conf1
bc00-bc1f : Intel Corp. 82557/8/9 [Ethernet Pro 100]
bc00-bc1f : e100
cc00-cc3f : Intel Corp. 82801DB AC'97 Audio
cc00-cc3f : Intel ICH4
d000-d0ff : Intel Corp. 82801DB AC'97 Audio
d000-d0ff : Intel ICH4
d400-d41f : Intel Corp. 82801DB USB (Hub #1)
d400-d41f : usb-uhci
d800-d81f : Intel Corp. 82801DB USB (Hub #2)
d800-d81f : usb-uhci
dc00-dc1f : Intel Corp. 82801DB USB (Hub #3)
dc00-dc1f : usb-uhci
fc00-fc0f : Intel Corp. 82801DB ICH4 IDE
fc00-fc07 : ide0
fc08-fc0f : ide1
[root@elbmin3 scripts]# cat /proc/iomem
00000000-0009fbff : System RAM
0009fc00-0009ffff : reserved
000a0000-000bffff : Video RAM area
000c0000-000c7fff : Video ROM
000cc800-000ccfff : Extension ROM
000ce000-000d5fff : reserved
000f0000-000fffff : System ROM
00100000-1ffeffff : System RAM
00100000-002da287 : Kernel code
002da288-00378263 : Kernel data
1fff0000-1fff7fff : ACPI Tables
1fff8000-1fffffff : ACPI Non-volatile Storage
20000000-200003ff : Intel Corp. 82801DB ICH4 IDE
cd400000-dd5fffff : PCI Bus #01
d0000000-d7ffffff : nVidia Corporation NV11 [GeForce2 MX DDR]
dd6ff000-dd6fffff : Intel Corp. 82557/8/9 [Ethernet Pro 100]
dd6ff000-dd6fffff : e100
dd800000-df9fffff : PCI Bus #01
de000000-deffffff : nVidia Corporation NV11 [GeForce2 MX DDR]
dfd00000-dfdfffff : Intel Corp. 82557/8/9 [Ethernet Pro 100]
dfd00000-dfdfffff : e100
dffff900-dffff9ff : Intel Corp. 82801DB AC'97 Audio
dffff900-dffff9ff : ich_audio MBBAR
dffffa00-dffffbff : Intel Corp. 82801DB AC'97 Audio
dffffa00-dffffbff : ich_audio MMBAR
dffffc00-dfffffff : Intel Corp. 82801DB USB EHCI Controller
e0000000-e3ffffff : Intel Corp. 82845 845 (Brookdale) Chipset Host Bridge
fec00000-fec00fff : reserved
fee00000-fee00fff : reserved
ffb00000-ffbfffff : reserved
fff00000-ffffffff : reserved
[root@elbmin3 scripts]#

[7.5.] PCI information ('lspci -vvv' as root)
Wow, lspci -vvv sure is verbose...
[root@elbmin3 scripts]# /sbin/lspci -vvv
00:00.0 Host bridge: Intel Corp. 82845 845 (Brookdale) Chipset Host
Bridge (rev 11)
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort+ >SERR- <PERR-
Latency: 0
Region 0: Memory at e0000000 (32-bit, prefetchable) [size=64M]
Capabilities: [e4] #09 [a104]
Capabilities: [a0] AGP version 2.0
Status: RQ=31 SBA+ 64bit- FW+ Rate=x1,x2,x4
Command: RQ=0 SBA- AGP+ 64bit- FW- Rate=x4

00:01.0 PCI bridge: Intel Corp. 82845 845 (Brookdale) Chipset AGP Bridge
(rev 11) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR+ FastB2B-
Status: Cap- 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR+ <PERR-
Latency: 32
Bus: primary=00, secondary=01, subordinate=02, sec-latency=32
I/O behind bridge: 0000f000-00000fff
Memory behind bridge: dd800000-df9fffff
Prefetchable memory behind bridge: cd400000-dd5fffff
BridgeCtl: Parity+ SERR+ NoISA+ VGA+ MAbort- >Reset- FastB2B-

00:1d.0 USB Controller: Intel Corp. 82801DB USB (Hub #1) (rev 01)
(prog-if 00 [UHCI])
Subsystem: Micro-Star International Co., Ltd.: Unknown device 5661
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin A routed to IRQ 16
Region 4: I/O ports at d400 [size=32]

00:1d.1 USB Controller: Intel Corp. 82801DB USB (Hub #2) (rev 01)
(prog-if 00 [UHCI])
Subsystem: Micro-Star International Co., Ltd.: Unknown device 5661
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin B routed to IRQ 19
Region 4: I/O ports at d800 [size=32]

00:1d.2 USB Controller: Intel Corp. 82801DB USB (Hub #3) (rev 01)
(prog-if 00 [UHCI])
Subsystem: Micro-Star International Co., Ltd.: Unknown device 5661
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin C routed to IRQ 18
Region 4: I/O ports at dc00 [size=32]

00:1d.7 USB Controller: Intel Corp. 82801DB USB EHCI Controller (rev 01)
(prog-if 20 [EHCI])
Subsystem: Micro-Star International Co., Ltd. 845PE Max
(MS-6580) Onboard USB EHCI Controller
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR+ FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin D routed to IRQ 23
Region 0: Memory at dffffc00 (32-bit, non-prefetchable) [size=1K]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] #0a [2080]

00:1e.0 PCI bridge: Intel Corp. 82801BA/CA/DB PCI Bridge (rev 81)
(prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR+ FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR+
Latency: 0
Bus: primary=00, secondary=03, subordinate=03, sec-latency=32
I/O behind bridge: 0000b000-0000bfff
Memory behind bridge: dfa00000-dfefffff
Prefetchable memory behind bridge: dd600000-dd6fffff
BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-

00:1f.0 ISA bridge: Intel Corp. 82801DB ISA Bridge (LPC) (rev 01)
Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 0

00:1f.1 IDE interface: Intel Corp. 82801DB ICH4 IDE (rev 01) (prog-if 8a
[Master SecP PriP])
Subsystem: Micro-Star International Co., Ltd.: Unknown device 5661
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin A routed to IRQ 18
Region 0: I/O ports at <unassigned>
Region 1: I/O ports at <unassigned>
Region 2: I/O ports at <unassigned>
Region 3: I/O ports at <unassigned>
Region 4: I/O ports at fc00 [size=16]
Region 5: Memory at 20000000 (32-bit, non-prefetchable) [size=1K]

00:1f.3 SMBus: Intel Corp. 82801DB SMBus (rev 01)
Subsystem: Micro-Star International Co., Ltd.: Unknown device 5661
Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR-
Interrupt: pin B routed to IRQ 17
Region 4: I/O ports at 0c00 [size=32]

00:1f.5 Multimedia audio controller: Intel Corp. 82801DB AC'97 Audio
(rev 01)
Subsystem: Micro-Star International Co., Ltd.: Unknown device 5661
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin B routed to IRQ 17
Region 0: I/O ports at d000 [size=256]
Region 1: I/O ports at cc00 [size=64]
Region 2: Memory at dffffa00 (32-bit, non-prefetchable) [size=512]
Region 3: Memory at dffff900 (32-bit, non-prefetchable) [size=256]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

01:00.0 VGA compatible controller: nVidia Corporation NV11DDR [GeForce2
MX 100 DDR/200 DDR] (rev b2) (prog-if 00 [VGA])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 248 (1250ns min, 250ns max)
Interrupt: pin A routed to IRQ 16
Region 0: Memory at de000000 (32-bit, non-prefetchable) [size=16M]
Region 1: Memory at d0000000 (32-bit, prefetchable) [size=128M]
Expansion ROM at df9f0000 [disabled] [size=64K]
Capabilities: [60] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [44] AGP version 2.0
Status: RQ=31 SBA- 64bit- FW+ Rate=x1,x2,x4
Command: RQ=31 SBA- AGP+ 64bit- FW- Rate=x4

03:05.0 Ethernet controller: Intel Corp. 82557/8/9 [Ethernet Pro 100]
(rev 05)
Subsystem: Intel Corp. EtherExpress PRO/100+ Management Adapter
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop-
ParErr- Stepping- SERR+ FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium
>TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 32 (2000ns min, 14000ns max), cache line size 08
Interrupt: pin A routed to IRQ 17
Region 0: Memory at dd6ff000 (32-bit, prefetchable) [size=4K]
Region 1: I/O ports at bc00 [size=32]
Region 2: Memory at dfd00000 (32-bit, non-prefetchable) [size=1M]
Expansion ROM at dfc00000 [disabled] [size=1M]
Capabilities: [dc] Power Management version 1
Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA
PME(D0+,D1+,D2+,D3hot+,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

[root@elbmin3 scripts]#

[7.6.] SCSI information (from /proc/scsi/scsi)
Are you kidding? I can't afford the luxury of SCSI.
[root@elbmin3 scripts]# cat /proc/scsi/scsi
cat: /proc/scsi/scsi: No such file or directory
[root@elbmin3 scripts]#

[7.7.] Other information that might be relevant to the problem
I can't imagine what other information would be relevant. If anybody
wants some specific info, please contact me.
END FILLED-OUT TEMPLATE

TIA.

--Alex Markley

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