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From: Jan Stancek <jstancek@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: torvalds@linux-foundation.org, kilobyte@angband.pl, arnd@arndb.de
Subject: unable to load modules with CONFIG_MODVERSIONS=y after commit 8ab2ae655b
Date: Tue, 6 Dec 2016 08:31:01 -0500 (EST)	[thread overview]
Message-ID: <656276734.2322009.1481031061742.JavaMail.zimbra@redhat.com> (raw)
In-Reply-To: <2124400518.2319293.1481030523351.JavaMail.zimbra@redhat.com>

Hi,

Starting with 4.9-rc8 / commit 8ab2ae655b ("default exported asm symbols to zero")
I'm running into issue with kernel built with CONFIG_MODVERSIONS=y
and (older) binutils (binutils-2.25.1-20.base.el7.ppc64le). 

Modules fail to load, for example:

[    3.163646] Found checksum 0 vs module 4829A47E 
[    3.163787] dm_mod: disagrees about version of symbol memcpy 
[    3.163862] dm_mod: Unknown symbol memcpy (err -22)

Bisect led me to 8ab2ae655b, reverting it allows boot to
progress as before.

Regards,
Jan

       reply	other threads:[~2016-12-06 13:31 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <2124400518.2319293.1481030523351.JavaMail.zimbra@redhat.com>
2016-12-06 13:31 ` Jan Stancek [this message]
2016-12-06 13:44   ` unable to load modules with CONFIG_MODVERSIONS=y after commit 8ab2ae655b Adam Borowski
2016-12-06 16:39     ` Linus Torvalds
2016-12-07 23:12       ` Arnd Bergmann
2016-12-06 23:28 Philip Müller

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