Re: FAIL: dax-errors.sh failures on 4.14.0-rc4+

["Verma, Vishal L" <vishal.l.verma@intel.com>]

On Tue, 2017-10-10 at 03:04 +0000, Cheng-mean Liu (SOCCER) wrote:
> Hi:
> 
> I am hitting the following ndctl test failure, all code from
> ndctl/Linux upstream kernel.
> 
> Is this a know issue?
> 
> FAIL: dax-errors.sh
> SKIP: daxdev-errors.sh
> 
> FAIL: dax-errors.sh
> ===================
> 
> + DEV=
> + NDCTL=../ndctl/ndctl
> + BUS='-b nfit_test.0'
> + BUS1='-b nfit_test.1'
> + MNT=test_dax_mnt
> + FILE=image
> + json2var='s/[{}",]//g; s/:/=/g'
> + rc=77
> + check_min_kver 4.7
> + local ver=4.7
> ++ uname -r
> + : 4.14.0-rc4+
> + '[' -n 4.7 ']'
> ++ echo -e '4.7\n4.14.0-rc4+'
> ++ sort -V
> ++ head -1
> + [[ 4.7 == \4\.\7 ]]
> + set -e
> + mkdir -p test_dax_mnt
> + trap 'err $LINENO' ERR
> + modprobe nfit_test
> + ../ndctl/ndctl disable-region -b nfit_test.0 all
> disabled 6 regions
> + ../ndctl/ndctl zero-labels -b nfit_test.0 all
> zeroed 4 nmems
> + ../ndctl/ndctl enable-region -b nfit_test.0 all
> enabled 6 regions
> + rc=1
> + dev=x
> ++ ../ndctl/ndctl create-namespace -b nfit_test.0 -t pmem -m raw
> + json='{
>   "dev":"namespace5.0",
>   "mode":"raw",
>   "size":67108864,
>   "uuid":"8ce610c5-f7ca-4df8-84f4-d27adcb19ceb",
>   "blockdev":"pmem5",
>   "badblock_count":8
> }'
> ++ echo '{' '"dev":"namespace5.0",' '"mode":"raw",' '"size":67108864,'
> '"uuid":"8ce610c5-f7ca-4df8-84f4-d27adcb19ceb",' '"blockdev":"pmem5",'
> '"badblock_count":8' '}'
> ++ sed -e 's/[{}",]//g; s/:/=/g'
> + eval dev=namespace5.0 mode=raw size=67108864 uuid=8ce610c5-f7ca-
> 4df8-84f4-d27adcb19ceb blockdev=pmem5 badblock_count=8
> ++ dev=namespace5.0
> ++ mode=raw
> ++ size=67108864
> ++ uuid=8ce610c5-f7ca-4df8-84f4-d27adcb19ceb
> ++ blockdev=pmem5
> ++ badblock_count=8
> + '[' namespace5.0 = x ']'
> + '[' raw '!=' raw ']'
> + read sector len
> + '[' 131072 -ne 131072 ']'
> + dd if=/dev/pmem5 of=/dev/null iflag=direct bs=512 skip=65536 count=8
> dd: error reading '/dev/pmem5': Input/output error
> 0+0 records in
> 0+0 records out
> 0 bytes copied, 0.0003475 s, 0.0 kB/s
> + dd of=/dev/pmem5 if=/dev/zero oflag=direct bs=512 seek=65536 count=8
> 8+0 records in
> 8+0 records out
> 4096 bytes (4.1 kB, 4.0 KiB) copied, 0.0003608 s, 11.4 MB/s
> + read sector len
> + mkfs.ext4 /dev/pmem5 -b 4096
> mke2fs 1.43.4 (31-Jan-2017)
> Creating filesystem with 16384 4k blocks and 16384 inodes
> 
> Allocating group tables: 0/1^H^H^H   ^H^H^Hdone
> Writing inode tables: 0/1^H^H^H   ^H^H^Hdone
> Creating journal (1024 blocks): done
> Writing superblocks and filesystem accounting information:
> 0/1^H^H^H   ^H^H^Hdone
> 
> + mount /dev/pmem5 test_dax_mnt -o dax
> mount: wrong fs type, bad option, bad superblock on /dev/pmem5,
>        missing codepage or helper program, or other error
> 
>        In some cases useful info is found in syslog - try
>        dmesg | tail or so.

I'm unable to reproduce this with the 4.14-rc4 tag and latest ndctl
(pending branch - v58.2-10-gb95aa54). Are you able to reproduce this?
Are you able to create a raw  pmem namespace manually, and mount it with
dax?

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