On Sat, Jan 30, 2016 at 6:09 PM, Phil Turmel <philip@xxxxxxxxxx> wrote: > Hi Björn, > > On 01/30/2016 07:21 AM, Björn Augustsson wrote: > >> The question is, what kind of state am in now? > > The kernel is waiting for mdmon (mdadm as a background task) to step > through the stripes. mdmon died and the kernel will wait forever. OK. So I think the root cause here is that my invocation of mdadm was unconfined, because I was running it interactively. So it could create the backup file. But the background version starts via systemd, and runs as mdadm_t, which can't read that file (because it's in /boot). And poof. I'll file a bug vs the fedora selinux policy for this, too. >> And how should I recover? >> Will just adding a policy to allow access to that file, and then >> mdadm --grow --continue /dev/md127 >> fix it? > > Probably. Others have fixed this by disabling selinux for the reshape. > Don't forget to specify --backup-file again on the command line. (I > don't use selinux myself, so I can't be more specific.) Yeah, this seems to be working. mdadm --grow --continue --backup-file=/boot/grow_md127.bak /dev/md127 is running, and the counters in /proc/mdstat started moving. It's going to be a day or two for this to complete, but right now things are looking good. Thanks for the help! /August. > In the future, consider not using a backup file at all -- mdadm > generally leaves enough dead space on devices to avoid the need. > >> Is the broken backup file going to be a problem? > > Shouldn't be. Report back if it is. > > Phil -- Wrong on most accounts. const Foo *foo; and Foo const *foo; mean the same: foo being a pointer to const Foo. const Foo const *foo; would mean the same but is illegal (double const). You are confusing this with Foo * const foo; and const Foo * const foo; respectively. -David Kastrup, comp.os.linux.development.system -- 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
