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Date: Fri, 6 Jul 2018 16:10:57 -0700
From: Omar Sandoval <osandov@osandov.com>
To: Bart Van Assche <Bart.VanAssche@wdc.com>
Cc: "osandov@fb.com" <osandov@fb.com>,
        "linux-block@vger.kernel.org" <linux-block@vger.kernel.org>
Subject: Re: [PATCH blktests v2 3/3] Add tests for the SRP initiator and
 target drivers
Message-ID: <20180706231057.GH25954@vader>
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On Fri, Jul 06, 2018 at 11:07:06PM +0000, Bart Van Assche wrote:
> On Fri, 2018-07-06 at 16:03 -0700, Omar Sandoval wrote:
> > Alright, I'm not getting the udev events at all (even after enabling
> > CONFIG_DM_UEVENT in addition to everything mentioned in the README). I
> > have no idea where to go from here.
> > 
> > After, e.g., srp/002 fails, this is the state of my system:
> > 
> > $ sudo multipath -l
> > $ ls /sys/class/block
> > nvme0n1  ram0  ram1  ram2  sda  sdb  sdc  sdd  vda  vda1  vdb  vdc  vdd
> > $ lsblk
> > NAME    MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
> > sda       8:0    0  32M  0 disk
> > sdb       8:16   0  32M  0 disk
> > sdc       8:32   0  32M  0 disk
> > sdd       8:48   0  32M  0 disk
> > vda     254:0    0  16G  0 disk
> > └─vda1  254:1    0  16G  0 part /
> > vdb     254:16   0   8G  0 disk
> > vdc     254:32   0   8G  0 disk
> > vdd     254:48   0   8G  0 disk
> > nvme0n1 259:0    0   8G  0 disk
> > $ lsscsi
> > [0:0:0:0]    disk    Linux    scsi_debug       0188  /dev/sda
> > [1:0:0:0]    disk    LIO-ORG  IBLOCK           4.0   /dev/sdb
> > [1:0:0:1]    disk    LIO-ORG  IBLOCK           4.0   /dev/sdd
> > [1:0:0:2]    disk    LIO-ORG  IBLOCK           4.0   /dev/sdc
> 
> That's weird. If you want I can install Arch Linux myself and debug this
> further.

At this point, that might be easier.

> Something that would also help is if you could run the following
> commands as root and provide their output:
> 
> echo reconfigure | multipathd -k
> multipath -ll

# cat /etc/multipath.conf
defaults {
    user_friendly_names     yes
    queue_without_daemon    no
}
devices {
    device {
        vendor       "LIO-ORG|SCST_BIO|FUSIONIO"
        product      ".*"
        features     "1 queue_if_no_path"
        path_checker tur
    }
}
blacklist {
    device {
        vendor  "ATA"
    }
    device {
        vendor  "QEMU"
    }
    device {
        vendor  "Linux"
        product "scsi_debug"
    }
    devnode     "^nullb.*"
}
blacklist_exceptions {
    property        ".*"
    devnode         "^nvme"
}
# echo reconfigure | multipathd -k
multipathd> reconfigure
ok
multipathd>
# multipath -ll

So, no output.