Bug 16503 - Upgrade to 2.6.34.2 breaks ethernet network
Summary: Upgrade to 2.6.34.2 breaks ethernet network
Status: RESOLVED OBSOLETE
Alias: None
Product: Networking
Classification: Unclassified
Component: Other (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: Arnaldo Carvalho de Melo
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2010-08-03 20:14 UTC by Dave Morgan
Modified: 2012-08-09 15:26 UTC (History)
2 users (show)

See Also:
Kernel Version:
Subsystem:
Regression: Yes
Bisected commit-id:

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Description Dave Morgan 2010-08-03 20:14:22 UTC 
Using Arch Linux with fully up-to-date system.

Upgrading kernel from 2.6.34.1 to 2.6.34.2 breaks my ethernet connection.  I get dhcp timeouts but no errors in the logs regarding the kernel or the card.

Dell Inspiron 1720.

03:00.0 Ethernet controller: Broadcom Corporation BCM4401-B0 100Base-TX (rev 02)

Downgrading the kernel fixes the issue.
Comment 1 Andrew Morton 2010-08-03 20:28:53 UTC 
(switched to email.  Please respond via emailed reply-to-all, not via the
bugzilla web interface).

On Tue, 3 Aug 2010 20:14:34 GMT
bugzilla-daemon@bugzilla.kernel.org wrote:

> https://bugzilla.kernel.org/show_bug.cgi?id=16503
> 
>            Summary: Upgrade to 2.6.34.2 breaks ethernet network
>            Product: Networking
>            Version: 2.5
>           Platform: All
>         OS/Version: Linux
>               Tree: Mainline
>             Status: NEW
>           Severity: normal
>           Priority: P1
>          Component: Other
>         AssignedTo: acme@ghostprotocols.net
>         ReportedBy: davemorgan353@btinternet.com
>         Regression: No
> 
> 
> Using Arch Linux with fully up-to-date system.
> 
> Upgrading kernel from 2.6.34.1 to 2.6.34.2 breaks my ethernet connection.  I
> get dhcp timeouts but no errors in the logs regarding the kernel or the card.
> 
> Dell Inspiron 1720.
> 
> 03:00.0 Ethernet controller: Broadcom Corporation BCM4401-B0 100Base-TX (rev
> 02)
> 
> Downgrading the kernel fixes the issue.
> 

There are no changes to b44.c in patch-2.6.34.2.  Perhaps you could
generate the dmesg logs for 2.6.34.1 and 2.6.34.2 and run `diff -u'
against them, see if anything interesting pops out?
Comment 2 Dave Morgan 2010-08-04 20:00:26 UTC 
On 03/08/10 at 01:27pm, Andrew Morton wrote:
>
> (switched to email.  Please respond via emailed reply-to-all, not via the
> bugzilla web interface).
>
> On Tue, 3 Aug 2010 20:14:34 GMT
> bugzilla-daemon@bugzilla.kernel.org wrote:
>
> > https://bugzilla.kernel.org/show_bug.cgi?id=16503
> >
> >            Summary: Upgrade to 2.6.34.2 breaks ethernet network
> >            Product: Networking
> >            Version: 2.5
> >           Platform: All
> >         OS/Version: Linux
> >               Tree: Mainline
> >             Status: NEW
> >           Severity: normal
> >           Priority: P1
> >          Component: Other
> >         AssignedTo: acme@ghostprotocols.net
> >         ReportedBy: davemorgan353@btinternet.com
> >         Regression: No
> >
> >
> > Using Arch Linux with fully up-to-date system.
> >
> > Upgrading kernel from 2.6.34.1 to 2.6.34.2 breaks my ethernet connection. 
> I
> > get dhcp timeouts but no errors in the logs regarding the kernel or the
> card.
> >
> > Dell Inspiron 1720.
> >
> > 03:00.0 Ethernet controller: Broadcom Corporation BCM4401-B0 100Base-TX
> (rev
> > 02)
> >
> > Downgrading the kernel fixes the issue.
> >
>
> There are no changes to b44.c in patch-2.6.34.2.  Perhaps you could
> generate the dmesg logs for 2.6.34.1 and 2.6.34.2 and run `diff -u'
> against them, see if anything interesting pops out?
>

There's nothing obvious to me in the logs.

However, it looks like it may be related to the ssb issues affecting
b43.

https://bugzilla.kernel.org/attachment.cgi?id=27335&action=diff

There are reports of my card working with 2.6.35 so I will upgrade to
that version.

--
Dave.
Comment 3 Dave Morgan 2010-08-04 20:00:33 UTC 
On 03/08/10 at 01:27pm, Andrew Morton wrote:
>
> (switched to email.  Please respond via emailed reply-to-all, not via the
> bugzilla web interface).
>
> On Tue, 3 Aug 2010 20:14:34 GMT
> bugzilla-daemon@bugzilla.kernel.org wrote:
>
> > https://bugzilla.kernel.org/show_bug.cgi?id=16503
> >
> >            Summary: Upgrade to 2.6.34.2 breaks ethernet network
> >            Product: Networking
> >            Version: 2.5
> >           Platform: All
> >         OS/Version: Linux
> >               Tree: Mainline
> >             Status: NEW
> >           Severity: normal
> >           Priority: P1
> >          Component: Other
> >         AssignedTo: acme@ghostprotocols.net
> >         ReportedBy: davemorgan353@btinternet.com
> >         Regression: No
> >
> >
> > Using Arch Linux with fully up-to-date system.
> >
> > Upgrading kernel from 2.6.34.1 to 2.6.34.2 breaks my ethernet connection. 
> I
> > get dhcp timeouts but no errors in the logs regarding the kernel or the
> card.
> >
> > Dell Inspiron 1720.
> >
> > 03:00.0 Ethernet controller: Broadcom Corporation BCM4401-B0 100Base-TX
> (rev
> > 02)
> >
> > Downgrading the kernel fixes the issue.
> >
>
> There are no changes to b44.c in patch-2.6.34.2.  Perhaps you could
> generate the dmesg logs for 2.6.34.1 and 2.6.34.2 and run `diff -u'
> against them, see if anything interesting pops out?
>

There's nothing obvious to me in the logs.

However, it looks like it may be related to the ssb issues affecting
b43.

https://bugzilla.kernel.org/attachment.cgi?id=27335&action=diff

There are reports of my card working with 2.6.35 so I will upgrade to
that version.

--
Dave.
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