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SubjectRe: [3.8-rc] regression: NETDEV WATCHDOG: eth0 (r8169): transmit queue 0 timed out
From
2013/2/3 Jörg Otte <jrg.otte@gmail.com>:
> 2013/1/6 Jörg Otte <jrg.otte@gmail.com>:
>> 2013/1/5 Francois Romieu <romieu@fr.zoreil.com>:
>>> Can you check if things improve with v3.8-rc2 after removing :
>>>
>>> 2. d64ec841517a25f6d468bde9f67e5b4cffdc67c7
>>> r8169: enable internal ASPM and clock request settings
>>
>> this fixes a second issue for me:
>> In 3.7.1 at startup the link came up after 15 sec.:
>> grep r8169 dmesg.3.7.1
>> [ 1.956842] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
>> [ 1.957059] r8169 0000:02:00.0: irq 42 for MSI/MSI-X
>> [ 1.957161] r8169 0000:02:00.0 eth0: RTL8168evl/8111evl at..
>> [ 1.957163] r8169 0000:02:00.0 eth0: jumbo features [frames..
>> [ 13.575452] r8169 0000:02:00.0 eth0: link down
>> [ 13.575475] r8169 0000:02:00.0 eth0: link down
>> [ 15.181317] r8169 0000:02:00.0 eth0: link up
>>
>> In 3.8rc the time increased to 24 seconds:
>> grep r8169 dmesg.3.8.0
>> [ 1.852546] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
>> [ 1.852765] r8169 0000:02:00.0: irq 42 for MSI/MSI-X
>> [ 1.852872] r8169 0000:02:00.0 eth0: RTL8168evl/8111evl at...
>> [ 1.852874] r8169 0000:02:00.0 eth0: jumbo features [frames...
>> [ 14.150212] r8169 0000:02:00.0 eth0: link down
>> [ 14.150229] r8169 0000:02:00.0 eth0: link down
>> [ 24.140263] r8169 0000:02:00.0 eth0: link up
>>
>> But with this revert I get the old performance:
>> dmesg | grep r8169
>> [ 1.816613] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
>> [ 1.816832] r8169 0000:02:00.0: irq 42 for MSI/MSI-X
>> [ 1.816947] r8169 0000:02:00.0 eth0: RTL8168evl/8111evl at...
>> [ 1.816948] r8169 0000:02:00.0 eth0: jumbo features [frames...
>> [ 13.986401] r8169 0000:02:00.0 eth0: link down
>> [ 13.986422] r8169 0000:02:00.0 eth0: link down
>> [ 15.623631] r8169 0000:02:00.0 eth0: link up
>>
>>
>>> 3. e0c075577965d1c01b30038d38bf637b027a1df3
>>> r8169: enable ALDPS for power saving
>>
>> That's it! This fixes the problem for me!
>>
>> Thanks, Jörg
>
>
> We are closely before v3.8 and I didn't see a solution
> so far.
> What is the plan regarding this issue(s)?
>
> Thanks, Jörg

No response, so I Cc to Linus:

To Summarize: Two net-regressions where introduced in v3.8 (driver r8169):

1) NETDEV WATCHDOG: eth0 (r8169): transmit queue 0 timed out
was introduced by commit
e0c075577965d1c01b30038d38bf637b027a1df3
("r8169: enable ALDPS for power saving")

2) Boot-time increased from 15sec (V3.7) to 24sec (V3.8)
by commit:
d64ec841517a25f6d468bde9f67e5b4cffdc67c7
("r8169: enable internal ASPM and clock request settings")

Reverting the commits resolve the problems entirely.

As long as the issues are not fixed the commits should be reverted.

Thanks, Jörg
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