[dm-devel] Issue with setting uid/gid/mode in multipath.conf

[Chandra Seetharaman]

Thanks for the info, Mark.
On Fri, 2009-08-21 at 12:30 +1000, Mark Goodwin wrote:
> Chandra Seetharaman wrote:
> > Hi Benjamin,
> > 
> > I have a small issue with setting the uid/gid/mode with multipath tools.
> > 
> > I have the following in my /etc/mulitpath.conf file
> > ------------------
> > multipaths {
> >         multipath {
> >                 wwid 3600a0b800011a1ee00003f834a3f7a65
> >                 alias dev4
> >                 mode    0666
> >                 uid     1001
> >                 gid     1001
> >         }
> > }
> > -------------------
> > 
> > After adding this, I do a "multipath -F" following by "multipath" (or
> > multipath -F followed by /etc/init.d/multipathd restart), I see the
> > attributes are set properly on the device.
> > 
> > I reboot the system, the device is created (under /dev/mapper) but
> > attributes are not set as defined in the multipath.conf file.
> > 
> > Have you seen this issue ? 
> > 
> > I am using RHEL 5.3 ga version (kernel and tools).
> > 
> 
> yes we've recently also seen this issue and can reproduce it without
> any need for a reboot, see https://bugzilla.redhat.com/518575
> 
> It seems to be a racy interaction of some kind between udevd and multipathd.
> 
> Cheers
> -- Mark
> 
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