On Thu, 2023-02-09 at 11:28 -0600, Benjamin Marzinski wrote: > Currently, whenever getting the uid_attribute from the udev database > fails, multipath will try to get it from the environment variables. > This > normally isn't a problem, since either multipath -u is getting called > from a uevent and the environment will have the correct value in that > variable, or something else is being run and that variable won't be > set. > However, when find_multipaths is configured to "smart", this causes > problems. For maybe devices, multipath needs to get the WWIDs of all > the > other block devices, to see if they match the maybe device wwid. If > one > of those devices doesn't have uid_attribute set in its udev database, > multipath will fall back to checking the environment for it, and it > will > find that variable set to the WWID of the maybe device that this > uevent > is for. This means that all devices with no WWID will end up > appearing > to have the same WWID as the maybe device, causing multipath to > incorrectly claim it. > > Signed-off-by: Benjamin Marzinski <bmarzins@xxxxxxxxxx> Reviewed-by: Martin Wilck <mwilck@xxxxxxxx> -- dm-devel mailing list dm-devel@xxxxxxxxxx https://listman.redhat.com/mailman/listinfo/dm-devel
