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Subject[HANG] SIS900 + P4 Hyperthread
Hi,

Using kernel 2.6.6 on a m/b with an builtin sis900 network adapter i get
a soft hang during HEAVY network traffic (ie. 7.5Mb/s). I tried to
enable sysrq to no avail. Keyboard is still active but any attempt to
run any command hangs.

Disabling hyperthreading in the bios seems to solve the problem. I think
this is smp related.

When using 2.4.x all is ok with hyperthreading enabled.

here is some info with hyperthreading disabled.... if you need anymore
info plz don't hesitate to mail me directly.


[root@nigel-linux.landonet root]# lspci -v
00:00.0 Host bridge: Silicon Integrated Systems [SiS]: Unknown device
0648 (rev 50)
Subsystem: Elitegroup Computer Systems: Unknown device 1803
Flags: bus master, medium devsel, latency 32
Memory at c0000000 (32-bit, non-prefetchable) [size=256M]
Capabilities: [c0] AGP version 3.5

00:01.0 PCI bridge: Silicon Integrated Systems [SiS]: Unknown device
0003 (prog-if 00 [Normal decode])
Flags: bus master, 66Mhz, fast devsel, latency 64
Bus: primary=00, secondary=01, subordinate=01, sec-latency=32
Memory behind bridge: d8000000-d9ffffff
Prefetchable memory behind bridge: d0000000-d7ffffff

00:02.0 ISA bridge: Silicon Integrated Systems [SiS]: Unknown device
0963 (rev 25)
Flags: bus master, medium devsel, latency 0

00:02.1 SMBus: Silicon Integrated Systems [SiS]: Unknown device 0016
Flags: medium devsel, IRQ 169
I/O ports at 1080 [size=32]

00:02.5 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE]
(prog-if 80 [Master])
Subsystem: Elitegroup Computer Systems: Unknown device 1803
Flags: bus master, medium devsel, latency 128, IRQ 193
I/O ports at 4000 [size=16]
Capabilities: [58] Power Management version 2

00:02.7 Multimedia audio controller: Silicon Integrated Systems [SiS]
SiS7012 PCI Audio Accelerator (rev a0)
Subsystem: Elitegroup Computer Systems: Unknown device 1803
Flags: bus master, medium devsel, latency 32, IRQ 177
I/O ports at dc00 [size=256]
I/O ports at e000 [size=128]
Capabilities: [48] Power Management version 2

00:03.0 USB Controller: Silicon Integrated Systems [SiS] 7001 (rev 0f)
(prog-if 10 [OHCI])
Subsystem: Elitegroup Computer Systems: Unknown device 1803
Flags: bus master, medium devsel, latency 32, IRQ 201
Memory at da023000 (32-bit, non-prefetchable) [size=4K]

00:03.1 USB Controller: Silicon Integrated Systems [SiS] 7001 (rev 0f)
(prog-if 10 [OHCI])
Subsystem: Elitegroup Computer Systems: Unknown device 1803
Flags: bus master, medium devsel, latency 32, IRQ 209
Memory at da020000 (32-bit, non-prefetchable) [size=4K]

00:03.3 USB Controller: Silicon Integrated Systems [SiS]: Unknown device
7002 (prog-if 20 [EHCI])
Subsystem: Elitegroup Computer Systems: Unknown device 1803
Flags: bus master, medium devsel, latency 32, IRQ 225
Memory at da021000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [50] Power Management version 2

00:04.0 Ethernet controller: Silicon Integrated Systems [SiS] SiS900
10/100 Ethernet (rev 91)
Subsystem: Elitegroup Computer Systems: Unknown device 1803
Flags: bus master, medium devsel, latency 32, IRQ 185
I/O ports at e400 [size=256]
Memory at da022000 (32-bit, non-prefetchable) [size=4K]
Expansion ROM at <unassigned> [disabled] [size=128K]
Capabilities: [40] Power Management version 2

00:0b.0 FireWire (IEEE 1394): Lucent Microelectronics FW323 (rev 61)
(prog-if 10 [OHCI])
Subsystem: Lucent Microelectronics FW323
Flags: bus master, medium devsel, latency 32, IRQ 169
Memory at da024000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2

01:00.0 VGA compatible controller: nVidia Corporation: Unknown device
0281 (rev a1) (prog-if 00 [VGA])
Subsystem: Micro-star International Co Ltd: Unknown device 8943
Flags: bus master, 66Mhz, medium devsel, latency 248, IRQ 193
Memory at d8000000 (32-bit, non-prefetchable) [size=16M]
Memory at d0000000 (32-bit, prefetchable) [size=128M]
Expansion ROM at <unassigned> [disabled] [size=128K]
Capabilities: [60] Power Management version 2
Capabilities: [44] AGP version 3.0


[root@nigel-linux.landonet root]# cat /proc/interrupts
CPU0
0: 1146943 IO-APIC-edge timer
4: 29 IO-APIC-edge serial
7: 2 IO-APIC-edge parport0
9: 171 IO-APIC-level acpi
14: 134449 IO-APIC-edge ide0
15: 24 IO-APIC-edge ide1
169: 171 IO-APIC-level ohci1394
185: 684341 IO-APIC-level eth0
193: 55506 IO-APIC-level nvidia
201: 12379 IO-APIC-level ohci_hcd
209: 4069 IO-APIC-level ohci_hcd
225: 0 IO-APIC-level ehci_hcd
NMI: 0
LOC: 1146994
ERR: 0
MIS: 0



[root@nigel-linux.landonet root]# cat /proc/iomem
00000000-0009ffff : System RAM
000a0000-000bffff : Video RAM area
000c0000-000ce3ff : Video ROM
000f0000-000fffff : System ROM
00100000-1ffeffff : System RAM
00100000-004eb0ed : Kernel code
004eb0ee-0071faff : Kernel data
1fff0000-1fff2fff : ACPI Non-volatile Storage
1fff3000-1fffffff : ACPI Tables
c0000000-cfffffff : 0000:00:00.0
d0000000-d7ffffff : PCI Bus #01
d0000000-d7ffffff : 0000:01:00.0
d8000000-d9ffffff : PCI Bus #01
d8000000-d8ffffff : 0000:01:00.0
da020000-da020fff : 0000:00:03.1
da020000-da020fff : ohci_hcd
da021000-da021fff : 0000:00:03.3
da021000-da021fff : ehci_hcd
da022000-da022fff : 0000:00:04.0
da022000-da022fff : sis900
da023000-da023fff : 0000:00:03.0
da023000-da023fff : ohci_hcd
da024000-da024fff : 0000:00:0b.0
da024000-da0247ff : ohci1394
fec00000-ffffffff : reserved



[root@nigel-linux.landonet root]# cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 2
model name : Intel(R) Pentium(R) 4 CPU 2.80GHz
stepping : 9
cpu MHz : 2806.126
cache size : 512 KB
physical id : 0
siblings : 1
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 pbe cid
bogomips : 5570.56




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