On Sun, Mar 1, 2009 at 8:15 PM, Stephen Hemminger <shemmin...@vyatta.com> wrote:
> We are seeing problems with E1000 driver when running over VMware's emulated
> e1000 layer. These only started happening with 2.6.28
>
>> If I disconnect an interface using the VMware's Disconnect, the link
>> appeared to have come up. If I then try to ping via the interface, I see
>> these messages:
>> >
>> > [  264.820281] ------------[ cut here ]------------
>> > [  249.727468] e1000: eth1: e1000_watchdog: NIC Link is Up 1000 Mbps
>> Full Duplex, Flow Control: None
>> > [  255.821378] e1000: eth1: e1000_clean_tx_irq: Detected Tx Unit Hang
>> > [  255.821388]   Tx Queue             <0>
>> > [  255.821390]   TDH                  <0>
>> > [  255.821392]   TDT                  <1>
>> > [  255.821393]   next_to_use          <1>
>> > [  255.821395]   next_to_clean        <0>
>> > [  255.821401] buffer_info[next_to_clean]
>> > [  255.821403]   time_stamp           <ffffd3e0>
>> > [  255.821405]   next_to_watch        <0>
>> > [  255.821406]   jiffies              <ffffd4db>
>> > [  255.821408]   next_to_watch.status <0>
>> > [  257.822189] e1000: eth1: e1000_clean_tx_irq: Detected Tx Unit Hang
>> > [  257.822195]   Tx Queue             <0>
>> > [  257.822196]   TDH                  <0>
>> > [  257.822198]   TDT                  <1>
>> > [  257.822200]   next_to_use          <1>
>> > [  257.822201]   next_to_clean        <0>
>> > [  257.822203] buffer_info[next_to_clean]
>> > [  257.822204]   time_stamp           <ffffd3e0>
>> > [  257.822206]   next_to_watch        <0>
>> > [  257.822207]   jiffies              <ffffd6cf>
>> > [  257.822209]   next_to_watch.status <0>
>> > [  259.821038] e1000: eth1: e1000_clean_tx_irq: Detected Tx Unit Hang
>> > [  259.821043]   Tx Queue             <0>
>> > [  259.821045]   TDH                  <0>
>> > [  259.821046]   TDT                  <1>
>> > [  259.821048]   next_to_use          <1>
>> > [  259.821049]   next_to_clean        <0>
>> > [  259.821051] buffer_info[next_to_clean]
>> > [  259.821052]   time_stamp           <ffffd3e0>
>> > [  259.821054]   next_to_watch        <0>
>> > [  259.821055]   jiffies              <ffffd8c3>
>> > [  259.821057]   next_to_watch.status <0>
>> > [  261.821904] e1000: eth1: e1000_clean_tx_irq: Detected Tx Unit Hang
>> > [  261.821908]   Tx Queue             <0>
>> > [  261.821910]   TDH                  <0>
>> > [  261.821912]   TDT                  <1>
>> > [  261.821913]   next_to_use          <1>
>> > [  261.821915]   next_to_clean        <0>
>> > [  261.821916] buffer_info[next_to_clean]
>> > [  261.821918]   time_stamp           <ffffd3e0>
>> > [  261.821920]   next_to_watch        <0>
>> > [  261.821921]   jiffies              <ffffdab7>
>> > [  261.821923]   next_to_watch.status <0>
>> > [  263.820721] e1000: eth1: e1000_clean_tx_irq: Detected Tx Unit Hang
>> > [  263.820726]   Tx Queue             <0>
>> > [  263.820728]   TDH                  <0>
>> > [  263.820730]   TDT                  <1>
>> > [  263.820731]   next_to_use          <1>
>> > [  263.820733]   next_to_clean        <0>
>> > [  263.820734] buffer_info[next_to_clean]
>> > [  263.820736]   time_stamp           <ffffd3e0>
>> > [  263.820738]   next_to_watch        <0>
>> > [  263.820739]   jiffies              <ffffdcab>
>> > [  263.820741]   next_to_watch.status <0>
>> > [  264.820281] ------------[ cut here ]------------
>
>

Stephen,

What version of VMWare are you using?  Also can you provide the
hardware info and type of interrupts you are using.  We will try and
repro the issue here with the information you provide.

-- 
Cheers,
Jeff

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