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From: Eli V <eliventer@gmail.com>
To: linux-hotplug@vger.kernel.org
Subject: Trying to understand udev duplicate ID_PATH issue
Date: Fri, 05 Mar 2021 22:53:12 +0000	[thread overview]
Message-ID: <CAJtFHUTJeJGjLBGcxAspgzYOpRUXGAfM0moyA8GMLT3580rKCQ@mail.gmail.com> (raw)

Using udev 241, I'm seeing duplicate ID_PATHs for tape devices:

$ udevadm info --name=/dev/st0 --query=all | grep PATHE: DEVPATH=/devices/pci0000:b2/0000:b2:00.0/0000:b3:00.0/host11/port-11:0/end_device-11:0/target11:0:0/11:0:0:0/scsi_tape/st0
E: ID_PATH=pci-0000:b3:00.0-sas-phy0-lun-0

$ udevadm info --name=/dev/st1 --query=all | grep PATHE: DEVPATH=/devices/pci0000:b2/0000:b2:00.0/0000:b3:00.0/host11/port-11:1/end_device-11:1/target11:0:1/11:0:1:0/scsi_tape/st1
E: ID_PATH=pci-0000:b3:00.0-sas-phy0-lun-0

Not sure how these ID_PATHs get generate but it would be nice to sort
things out so /dev/tape/by-path has links for both devices. This is
running on a Debian 10 system, but using the Ubuntu 5.4.78 kernel. Not
much of a udev expert so I don't know if this is fixable via some udev
rules, or something else is needed.

             reply	other threads:[~2021-03-05 22:53 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-05 22:53 Eli V [this message]
2021-03-06  7:13 ` Trying to understand udev duplicate ID_PATH issue Andrei Borzenkov

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