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From:   "Li, Philip" <philip.li@intel.com>
To:     "Wu, Fengguang" <fengguang.wu@intel.com>,
        Josh Poimboeuf <jpoimboe@redhat.com>
CC:     "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        LKP <lkp@01.org>, lkp <lkp@intel.com>,
        "Du, Julie" <julie.du@intel.com>
Subject: RE: cross-compiling a 64-bit kernel on a 32-bit host
Thread-Topic: cross-compiling a 64-bit kernel on a 32-bit host
Thread-Index: AQHT6Nsl0At3YPCiIUa6sxRNLx/YiqQp5ehg
Date:   Fri, 11 May 2018 04:01:46 +0000
Message-ID: <831EE4E5E37DCC428EB295A351E662494CB0F860@shsmsx102.ccr.corp.intel.com>
References: <20180510223619.jwdlle42brksfp4v@treble>
 <20180511033950.ahkey2jnsd5i2gvi@wfg-t540p.sh.intel.com>
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> Subject: Re: cross-compiling a 64-bit kernel on a 32-bit host
> 
> Hi Josh,
> 
> CC LKP team.
> 
> On Thu, May 10, 2018 at 05:36:19PM -0500, Josh Poimboeuf wrote:
> >Hi Fengguang,
> >
> >I occasionally get compilation bug reports from people who are
> >cross-compiling an x86-64 kernel target on an x86-32 host.
> >
> >Any chance the 0-day build bot could test that configuration?  I think
> >just building a defconfig would be sufficient.  It would help sort out
> >issues in objtool and other host-built scripts.
> 
> To do that we'll need to create a new build chroot. Julie/Philip
> should be able to evaluate the efforts and do the plan.
got it, we will consider this in future plan after some evaluation.

> 
> Thanks,
> Fengguang