On 04/13/2010 05:28 AM, Tomáš Dulík wrote: > Hi Doug, > > first of all: thanks for your work on hot-unplug! > I am new to Linux RAID, have been using HW RAID before but after my LSI > controller burned to ashes I decided I don't want to see HW RAID ... ever. > > First thing I found weird on Linux RAID was the missing support for dead > device removal. > I spent last 3 weeks trying to write various scripts for UDEV "remove" > and mdadm "Fail" events handling, but finally I found the same thing > like you - it is not possible to remove dead device from an array, > because the events are issued too late. The only way to remove dead > device is reboot, which is not what I would expect as solution in Linux > world. > > So I downloaded your code from Neil's git > (http://neil.brown.name/git?p=mdadm;a=shortlog;h=refs/heads/hotunplug) > and also applied the "Minor incremental fixup" mentioned in your message > below. > > The compiled mdadm works OK for normal operations (--fail, --remove, > --add), but crashes with Segmentation fault for the "--incremental > --fail" operation if I use it for a disk that I have just disconnected. > Here is what I've got: [ snip ] Thanks for the report. You aren't likely doing anything wrong. Neil rewrote significant portions of my code and I suspect there is a lingering issue in there. I would have caught it already if I hadn't ended up taking some time off sick. But, I'm back and working on it now, so I'll send an updated patch to the list soon. -- Doug Ledford <dledford@xxxxxxxxxx> GPG KeyID: CFBFF194 http://people.redhat.com/dledford Infiniband specific RPMs available at http://people.redhat.com/dledford/Infiniband
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