Bug 10714

Summary: powerpc: Badness seen on 2.6.26-rc2 with lockdep enabled
Product: Platform Specific/Hardware Reporter: Rafael J. Wysocki (rjw)
Component: PPC-64Assignee: Anton Blanchard (anton)
Status: REJECTED UNREPRODUCIBLE    
Severity: normal CC: benh, bsingharora, bunk
Priority: P1    
Hardware: All   
OS: Linux   
Kernel Version: 2.6.26-rc2 Subsystem:
Regression: Yes Bisected commit-id:
Bug Depends on:    
Bug Blocks: 10492    

Description Rafael J. Wysocki 2008-05-15 15:50:42 UTC 
Subject    : Badness seen on 2.6.26-rc2 with lockdep enabled
Submitter  : Balbir Singh <balbir@linux.vnet.ibm.com>
Date       : 2008-05-14 12:57
References : http://marc.info/?l=linux-kernel&m=121076917429133&w=4

This entry is being used for tracking a regression from 2.6.25.  Please don't
close it until the problem is fixed in the mainline.
Comment 1 Adrian Bunk 2008-06-14 16:05:45 UTC 
On Sat, Jun 14, 2008 at 10:12:02PM +0200, Rafael J. Wysocki wrote:
> This message has been generated automatically as a part of a report
> of recent regressions.
> 
> The following bug entry is on the current list of known regressions
> from 2.6.25.  Please verify if it still should be listed.
> 
> 
> Bug-Entry     : http://bugzilla.kernel.org/show_bug.cgi?id=10714
> Subject               : Badness seen on 2.6.26-rc2 with lockdep enabled
> Submitter     : Balbir Singh <balbir@linux.vnet.ibm.com>
> Date          : 2008-05-14 12:57 (32 days old)
> References    : http://marc.info/?l=linux-kernel&m=121076917429133&w=4

Benjamin, you said you wanted to have a look at this?

cu
Adrian
Comment 2 Benjamin Herrenschmidt 2008-06-14 16:29:31 UTC 
On Sun, 2008-06-15 at 02:04 +0300, Adrian Bunk wrote:
> On Sat, Jun 14, 2008 at 10:12:02PM +0200, Rafael J. Wysocki wrote:
> > This message has been generated automatically as a part of a report
> > of recent regressions.
> > 
> > The following bug entry is on the current list of known regressions
> > from 2.6.25.  Please verify if it still should be listed.
> > 
> > 
> > Bug-Entry   : http://bugzilla.kernel.org/show_bug.cgi?id=10714
> > Subject             : Badness seen on 2.6.26-rc2 with lockdep enabled
> > Submitter   : Balbir Singh <balbir@linux.vnet.ibm.com>
> > Date                : 2008-05-14 12:57 (32 days old)
> > References  : http://marc.info/?l=linux-kernel&m=121076917429133&w=4
> 
> Benjamin, you said you wanted to have a look at this?

Ah yes, slipped out of my mind. It's probably a missing annotation in
the RTAS code, I'll have a look tomorrow.

Thanks,
Ben.
Comment 3 Adrian Bunk 2008-06-22 02:26:58 UTC 
Handled-By      : Benjamin Herrenschmidt <benh@kernel.crashing.org>
Comment 4 Benjamin Herrenschmidt 2008-06-22 23:44:34 UTC 
Still haven't looked, sorry about that... been kept busy by other things. Will do asap.
Comment 5 Benjamin Herrenschmidt 2008-06-29 20:51:27 UTC 
Haven't reproduced nor can I find an obvious code path that would get the
lockdep stuff wrong. Chasing it with Balbir now.