Still Seeing Parallel Build Breakage In 10.1-BETA3

[Warner Losh]

I’m putting together my MFC packet for this tomorrow.. I just today finished setting
up my new office after the move…

Warner

On Sep 29, 2014, at 7:55 AM, Glen Barber <gjb at freebsd.org> wrote:

> [CC imp@]
> 
> On Mon, Sep 29, 2014 at 08:32:21AM -0500, Tim Daneliuk wrote:
>> FYI -
>> 
>> Code Branch:
>> 
>> /usr/src>svn info
>> Path: .
>> Working Copy Root Path: /usr/src
>> URL: svn://svn.freebsd.org/base/stable/10
>> Relative URL: ^/stable/10
>> Repository Root: svn://svn.freebsd.org/base
>> Repository UUID: ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
>> Revision: 272279
>> Node Kind: directory
>> Schedule: normal
>> Last Changed Author: wblock
>> Last Changed Rev: 272275
>> Last Changed Date: 2014-09-28 18:15:18 -0500 (Sun, 28 Sep 2014)
>> 
>> 
>> Buildworld is fine with -j4, but buildkernel blows out:
>> 
> 
> This is fixed in head in revision r268376, and planned to be merged to
> stable/10 soon (so it will be included in 10.1-RELEASE).
> 
> A random, but interesting datapoint:  the fts_read() failure seems to be
> correlated to the processing speed (CPU and RAM) versus the speed of the
> disks.
> 
> On one of the RE build machines, prior to r268376 in head/, I could
> consistently reproduce this particular build failure when building with
> '-j' values of 24+.  On one of the newer RE machines, both world and
> kernel are build with '-j48', and I have yet to see this particular
> build failure in the stable/10 branch.  The main difference between the
> two machines is that the second machine mentioned is configured with
> proper partition alignment and ashift=12 versus ashift=9.
> 
> Glen

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