Public bug reported:
Binary package hint: linux-image-2.6.27-7-generic
The b44 ethernet driver that comes with the new 2.6.27-7-generic kernel
(Ubuntu Intrepid) constantly disconnects the link when using it heavily
(during rsync backups). The link resumes, but the hickup is very
noticeable.
For normal use of the ethernet, there is no problem. Only with rsync,
when it's transfering 7-8 mbps under a 100Mbps network. With Hardy this
has never happened on the same machine, same network cable.
dmesg shows:
[...]
[10095.996874] b44: eth0: powering down PHY
[10096.804102] b44: eth0: Link is down.
[10098.804193] b44: eth0: Link is up at 100 Mbps, full duplex.
[10098.804207] b44: eth0: Flow control is off for TX and off for RX.
[10104.843424] b44: eth0: powering down PHY
[10105.804104] b44: eth0: Link is down.
[10107.804191] b44: eth0: Link is up at 100 Mbps, full duplex.
[10107.804206] b44: eth0: Flow control is off for TX and off for RX.
[10112.956742] b44: eth0: powering down PHY
[10113.804113] b44: eth0: Link is down.
[10115.804186] b44: eth0: Link is up at 100 Mbps, full duplex.
[10115.804201] b44: eth0: Flow control is off for TX and off for RX.
[10119.556411] b44: eth0: powering down PHY
[10119.804103] b44: eth0: Link is down.
[10122.804186] b44: eth0: Link is up at 100 Mbps, full duplex.
[10122.804199] b44: eth0: Flow control is off for TX and off for RX.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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b44 driver constantly disconnects with heavy use
https://bugs.launchpad.net/bugs/293019
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