Re: slab corruption in skb allocs

[Richard Fuchs]

_correction_ to my previous mail, this does _not_ happen with the 
eepro100 driver. (sorry for the confusion, i got the kernel images mixed 
up with all the testing i've been doing.)

could this affect the e1000 driver as well?


Matt Mackall wrote:

> Send the output of ethtool, please.

box 1, affected:

Settings for eth0:
        Supported ports: [ TP MII ]
        Supported link modes:   10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
        Supports auto-negotiation: Yes
        Advertised link modes:  10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
        Advertised auto-negotiation: Yes
        Speed: 100Mb/s
        Duplex: Full
        Port: MII
        PHYAD: 1
        Transceiver: internal
        Auto-negotiation: on
        Current message level: 0x000020c1 (8385)
        Link detected: yes



box 2, affected:

        Supported ports: [ TP MII ]
        Supported link modes:   10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
        Supports auto-negotiation: Yes
        Advertised link modes:  10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
        Advertised auto-negotiation: Yes
        Speed: 100Mb/s
        Duplex: Full
        Port: MII
        PHYAD: 1
        Transceiver: internal
        Auto-negotiation: on
        Supports Wake-on: g
        Wake-on: g
        Current message level: 0x00000007 (7)
        Link detected: yes



box 3, not affected:

        Supported ports: [ TP MII ]
        Supported link modes:   10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
        Supports auto-negotiation: Yes
        Advertised link modes:  10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
        Advertised auto-negotiation: Yes
        Speed: 100Mb/s
        Duplex: Full
        Port: MII
        PHYAD: 1
        Transceiver: internal
        Auto-negotiation: on
        Supports Wake-on: g
        Wake-on: g
        Current message level: 0x00000007 (7)
        Link detected: yes


> This tends to be checksum
> offloading not working as it should or the like. Can you repeat this
> with bulk ssh traffic?

yes, with various strange effects:

Received disconnect from 195.58.172.154: 2: Bad packet length 919251405.

or

Received disconnect from 195.58.172.154: 2: Corrupted MAC on input.


cheers
richard
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