* e1000e: Avoid wrong check on TX hang
@ 2012-03-21 17:20 Joakim Tjernlund
2012-03-22 5:11 ` Jeff Kirsher
0 siblings, 1 reply; 2+ messages in thread
From: Joakim Tjernlund @ 2012-03-21 17:20 UTC (permalink / raw)
To: Jeff Kirsher; +Cc: netdev
I think commit 09357b00255c233705b1cf6d76a8d147340545b8(e1000e: Avoid wrong check on TX hang)
needs to be applied in 3.2.x (and 3.0.x) too.
We have seen this on routers(we got 3):
e1000e 0000:11:00.0: eth9: Detected Hardware Unit Hang:
TDH <a4>
TDT <a7>
next_to_use <a7>
next_to_clean <a4>
buffer_info[next_to_clean]:
time_stamp <1008e849f>
next_to_watch <a4>
jiffies <1008e85d8>
next_to_watch.status <0>
MAC Status <80387>
PHY Status <792d>
PHY 1000BASE-T Status <3800>
PHY Extended Status <3000>
PCI Status <10>
Applying the above patch on 3.2.12 makes the error go away.
Jocke
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: e1000e: Avoid wrong check on TX hang
2012-03-21 17:20 e1000e: Avoid wrong check on TX hang Joakim Tjernlund
@ 2012-03-22 5:11 ` Jeff Kirsher
0 siblings, 0 replies; 2+ messages in thread
From: Jeff Kirsher @ 2012-03-22 5:11 UTC (permalink / raw)
To: Joakim Tjernlund; +Cc: netdev
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On Wed, 2012-03-21 at 18:20 +0100, Joakim Tjernlund wrote:
> I think commit 09357b00255c233705b1cf6d76a8d147340545b8(e1000e: Avoid wrong check on TX hang)
> needs to be applied in 3.2.x (and 3.0.x) too.
>
> We have seen this on routers(we got 3):
> e1000e 0000:11:00.0: eth9: Detected Hardware Unit Hang:
> TDH <a4>
> TDT <a7>
> next_to_use <a7>
> next_to_clean <a4>
> buffer_info[next_to_clean]:
> time_stamp <1008e849f>
> next_to_watch <a4>
> jiffies <1008e85d8>
> next_to_watch.status <0>
> MAC Status <80387>
> PHY Status <792d>
> PHY 1000BASE-T Status <3800>
> PHY Extended Status <3000>
> PCI Status <10>
>
> Applying the above patch on 3.2.12 makes the error go away.
>
> Jocke
>
Thanks Joakim, I am aware of the issue/fix. I will submit the fix to
all stable tree's back to 2.6.32. Look for me posting the patch this
weekend.
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