linux-kernel - [lkp] [dm ioctl] ead3db62bf: device-mapper: version ioctl on failed: Bad address

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Date:	Thu, 07 Jan 2016 09:56:22 +0800
From:	kernel test robot <ying.huang@...ux.intel.com>
TO:	Scotty Bauer <sbauer@....utah.edu>
CC:	Mike Snitzer <snitzer@...hat.com>
Subject: [lkp] [dm ioctl] ead3db62bf: device-mapper: version ioctl on  failed: Bad address

FYI, we noticed the below changes on

https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git dm-4.5
commit ead3db62bf10fe143bec99e7b7ff370d7a6d23ef ("dm ioctl: do not directly deference user memory in check_version()")

With your commit, we found the following message in stderr:

device-mapper: version ioctl on  failed: Bad address
Incompatible libdevmapper  and kernel driver 
Command failed

To reproduce:

        git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git
        cd lkp-tests
        bin/lkp install job.yaml  # job file is attached in this email
        bin/lkp run     job.yaml



Thanks,
Ying Huang

View attachment "config-4.4.0-rc3-00023-gead3db6" of type "text/plain" (143086 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (16912 bytes)

View attachment "job.yaml" of type "text/plain" (3505 bytes)

Download attachment "reproduce.sh" of type "application/x-sh" (531 bytes)