Re: [Xen-devel] [pv_ops] e1000e: "Detected Tx Unit Hang"

[Stefan Kuhne <stefan.kuhne@xxxxxxx>]

Am 21.05.2010 00:18, schrieb Jeremy Fitzhardinge:

Hello Jeremy,

> e1000e works fine for me.  However, I did have problems with my Ibex
> Peak-based system and the integrated ethernet devices; they would drop
> off the PCIe bus (lspci -vx would show all 0xff for the config space),
> which turned out to be some problem with ALPM (PCIe active link power
> management).  Could this be what you're seeing?
> 
my "lspci -vx" output:

02:00.0 Ethernet controller: Intel Corporation 82573E Gigabit Ethernet
Controller (Copper)
        Subsystem: FIRST INTERNATIONAL Computer Inc Unknown device 4720
        Flags: bus master, fast devsel, latency 0, IRQ 409
        Memory at d0000000 (32-bit, non-prefetchable) [size=128K]
        I/O ports at 2000 [size=32]
        Capabilities: [c8] Power Management version 2
        Capabilities: [d0] Message Signalled Interrupts: Mask- 64bit+
Queue=0/0 Enable+
        Capabilities: [e0] Express Endpoint IRQ 0
        Capabilities: [100] Advanced Error Reporting
        Capabilities: [140] Device Serial Number c6-a9-09-ff-ff-0b-14-00
00: 86 80 8c 10 07 05 10 00 00 00 00 02 10 00 00 00
10: 00 00 00 d0 00 00 00 00 01 20 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 09 15 20 47
30: 00 00 00 00 c8 00 00 00 00 00 00 00 0b 01 00 00

and the complete dmesg output:
[ 9620.997466] 0000:02:00.0: peth0: Detected Tx Unit Hang:
[ 9620.997469]   TDH                  <fc>
[ 9620.997471]   TDT                  <1f>
[ 9620.997473]   next_to_use          <1f>
[ 9620.997475]   next_to_clean        <fc>
[ 9620.997477] buffer_info[next_to_clean]:
[ 9620.997479]   time_stamp           <8e2ec3>
[ 9620.997481]   next_to_watch        <fc>
[ 9620.997483]   jiffies              <8e3a25>
[ 9620.997485]   next_to_watch.status <0>
[ 9622.997490] 0000:02:00.0: peth0: Detected Tx Unit Hang:
[ 9622.997496]   TDH                  <fc>
[ 9622.997500]   TDT                  <1f>
[ 9622.997503]   next_to_use          <1f>
[ 9622.997507]   next_to_clean        <fc>
[ 9622.997511] buffer_info[next_to_clean]:
[ 9622.997515]   time_stamp           <8e2ec3>
[ 9622.997519]   next_to_watch        <fc>
[ 9622.997522]   jiffies              <8e41f5>
[ 9622.997526]   next_to_watch.status <0>
[ 9624.997536] 0000:02:00.0: peth0: Detected Tx Unit Hang:
[ 9624.997541]   TDH                  <fc>
[ 9624.997545]   TDT                  <1f>
[ 9624.997549]   next_to_use          <1f>
[ 9624.997553]   next_to_clean        <fc>
[ 9624.997557] buffer_info[next_to_clean]:
[ 9624.997561]   time_stamp           <8e2ec3>
[ 9624.997565]   next_to_watch        <fc>
[ 9624.997568]   jiffies              <8e49c5>
[ 9624.997572]   next_to_watch.status <0>
[ 9626.065848] eth0: port 1(peth0) entering disabled state
[ 9629.910292] e1000e: peth0 NIC Link is Up 1000 Mbps Full Duplex, Flow
Control: None
[ 9629.910854] eth0: port 1(peth0) entering forwarding state

Regards,
Stefan Kuhne

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