Hi Neil, On 09/29/2014 11:56 PM, NeilBrown wrote: > On Mon, 29 Sep 2014 10:45:17 +0200 Francis Moreau <francis.moro@xxxxxxxxx> > wrote: > >>> So what were pids 930 and 459? >>> One was presumably the "mdadm -Ss" - probably 930. >>> Is 459 the "mdadm --monitor" ?? That might be useful hint. >>> >> >> yes. >> >> [456] is: /sbin/mdadm --monitor --scan --daemonise --syslog >> --pid-file=/run/mdadm/mdadm.pid >> >> and [930] is 'mdamd -Ss'. > > Good. Please try the patch below. > After applying your patch, this is what I'm getting in syslog: Sep 30 03:40:07 localhost kernel: md_open(): md125 opened by mdadm [970] Sep 30 03:40:07 localhost kernel: md_release(): md125 released by mdadm [970] Sep 30 03:40:07 localhost kernel: md_open(): md125 opened by mdadm [972] Sep 30 03:40:07 localhost kernel: md_open(): md125 opened by mdadm [970] Sep 30 03:40:07 localhost kernel: md_release(): md125 released by mdadm [972] Sep 30 03:40:07 localhost kernel: md_open(): md125 opened by systemd-udevd [971] Sep 30 03:40:07 localhost systemd[1]: Cannot add dependency job for unit mdmonitor-takeover.service, ignoring: Invalid argument Sep 30 03:40:07 localhost systemd[1]: Started Software RAID monitoring and management. Sep 30 03:40:07 localhost kernel: md_release(): md125 released by systemd-udevd [971] Sep 30 03:40:08 localhost mdadm[466]: DeviceDisappeared event detected on md device /dev/md125 Sep 30 03:40:08 localhost mdadm[466]: DeviceDisappeared event detected on md device /dev/md126 Sep 30 03:40:08 localhost mdadm[466]: DeviceDisappeared event detected on md device /dev/md127 Sep 30 03:40:08 localhost kernel: md125: detected capacity change from 1863254016 to 0 Sep 30 03:40:08 localhost kernel: md: md125 stopped. Sep 30 03:40:08 localhost kernel: md: unbind<vdc3> Sep 30 03:40:08 localhost kernel: md: export_rdev(vdc3) Sep 30 03:40:08 localhost kernel: md: unbind<vdb3> Sep 30 03:40:08 localhost kernel: md: export_rdev(vdb3) Sep 30 03:40:08 localhost kernel: md_release(): md125 released by mdadm [970] Sep 30 03:40:08 localhost kernel: md_open(): md127 opened by mdadm [466] Sep 30 03:40:08 localhost kernel: md_release(): md127 released by mdadm [466] Sep 30 03:40:08 localhost kernel: md_open(): md126 opened by mdadm [466] Sep 30 03:40:08 localhost kernel: md_release(): md126 released by mdadm [466] Sep 30 03:40:08 localhost kernel: md_open(): md126 opened by mdadm [970] Sep 30 03:40:08 localhost kernel: md_release(): md126 released by mdadm [970] Sep 30 03:40:08 localhost kernel: md_open(): md126 opened by mdadm [970] Sep 30 03:40:08 localhost kernel: md126: detected capacity change from 67043328 to 0 Sep 30 03:40:08 localhost kernel: md: md126 stopped. Sep 30 03:40:08 localhost kernel: md: unbind<vdc1> Sep 30 03:40:08 localhost kernel: md: export_rdev(vdc1) Sep 30 03:40:08 localhost kernel: md: unbind<vdb1> Sep 30 03:40:08 localhost kernel: md: export_rdev(vdb1) Sep 30 03:40:08 localhost kernel: md_open(): md127 opened by mdadm [466] Sep 30 03:40:08 localhost kernel: md_release(): md127 released by mdadm [466] Sep 30 03:40:08 localhost kernel: md_release(): md126 released by mdadm [970] Sep 30 03:40:08 localhost kernel: md_open(): md127 opened by mdadm [970] Sep 30 03:40:08 localhost kernel: md_release(): md127 released by mdadm [970] Sep 30 03:40:08 localhost kernel: md_open(): md127 opened by mdadm [970] Sep 30 03:40:08 localhost kernel: md127: detected capacity change from 214564864 to 0 Sep 30 03:40:08 localhost kernel: md: md127 stopped. Sep 30 03:40:08 localhost kernel: md: unbind<vdc2> Sep 30 03:40:08 localhost kernel: md: export_rdev(vdc2) Sep 30 03:40:08 localhost kernel: md: unbind<vdb2> Sep 30 03:40:08 localhost kernel: md: export_rdev(vdb2) Sep 30 03:40:08 localhost kernel: md_release(): md127 released by mdadm [970] The ghost device is no more present so your patch seems to have fixed my issue. But I must admit I don't really understand what's going on :-/ Thanks -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
