linux-kernel - Re: linux-next: Tree for Jul 2 (objtool)

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <a3135000-c12d-9800-f58d-eabbfcfa1d3f@infradead.org>
Date:   Wed, 3 Jul 2019 10:23:21 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Josh Poimboeuf <jpoimboe@...hat.com>
Cc:     Stephen Rothwell <sfr@...b.auug.org.au>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Peter Zijlstra <peterz@...radead.org>
Subject: Re: linux-next: Tree for Jul 2 (objtool)

On 7/3/19 9:44 AM, Josh Poimboeuf wrote:
> On Tue, Jul 02, 2019 at 11:47:02AM -0700, Randy Dunlap wrote:
>> On 7/2/19 2:51 AM, Stephen Rothwell wrote:
>>> Hi all,
>>>
>>> Changes since 20190701:
>>>
>>
>> on x86_64:
>>
>> kernel/bpf/core.o: warning: objtool: ___bpf_prog_run()+0x22: can't find switch jump table
> 
> I don't see it on current linux-next/master.  Can you share the config
> and .o?
> 

This warning happened in 6 of 10 builds for 20190702.

Today (20190703) I don't see it at all, but I see this instead:
kernel/bpf/core.o: warning: objtool: ___bpf_prog_run()+0xa3: sibling call from callable instruction with modified stack frame

Kernel (rand)config file and .o file for 20190702 are attached.

-- 
~Randy

View attachment "config-r6085" of type "text/plain" (103191 bytes)

Download attachment "core.o" of type "application/x-object" (94016 bytes)