linux-kernel - Re: linux-next: Tree for Mar 18 (objtool)

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Date:   Wed, 18 Mar 2020 09:48:01 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Stephen Rothwell <sfr@...b.auug.org.au>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>
Subject: Re: linux-next: Tree for Mar 18 (objtool)

On 3/18/20 4:09 AM, Stephen Rothwell wrote:
> Hi all,
> 
> Changes since 20200317:
> 

Hi,

For some reason, the attached .config file generates over 350 objtool warnings.
There are all "unreachable instruction" warnings.

Here is a small sample:

mm/page-writeback.o: warning: objtool: __set_page_dirty_nobuffers()+0x25b: unreachable instruction
kernel/sched/fair.o: warning: objtool: load_balance()+0x54c: unreachable instruction
kernel/power/process.o: warning: objtool: freeze_kernel_threads()+0x115: unreachable instruction
mm/readahead.o: warning: objtool: read_cache_pages_invalidate_page()+0x1b5: unreachable instruction
kernel/power/suspend.o: warning: objtool: suspend_devices_and_enter()+0x101f: unreachable instruction
kernel/sched/rt.o: warning: objtool: dequeue_top_rt_rq()+0x67: unreachable instruction

-- 
~Randy
Reported-by: Randy Dunlap <rdunlap@...radead.org>

View attachment "config-r1462" of type "text/plain" (120461 bytes)