Re: Problems with set-default, home subvolume and snapshot

2011-09-07 Thread Björn Kalkbrenner
Hi, Am 05.09.2011 14:45, schrieb Hugo Mills: It'd be good if you have the time to try to reproduce this, particularly with the latest kernels (3.0 or 3.1-rcX) My recovery is done. Here are some infos... - Linux-3.0.0-gentoo-x86_64-Intel-R-_Core-TM-_i7_CPU_965_@_3.20GHz-with-gentoo-2.0.3 -

Problems with set-default, home subvolume and snapshot

2011-09-05 Thread Björn Kalkbrenner
Hi, i've got an interesting btrfs subvolume problem which i can't understand... Maybe someone here can give me a tip because i think that's only a user error... I had a root btrfs on / and made a subvolume some month ago for my home on /home (i think cwd was / and i used btrfs subvolume create

Re: Problems with set-default, home subvolume and snapshot

2011-09-05 Thread Björn Kalkbrenner
Hi! Thank you Hugo for your answers, but i have an update. It's dead Jim. When i tried to mount subvolid=0 to a temporary folder i got a kernel segfault and a BUG line in btrfs kernel code somewhere (reproducable), after a reboot all volumes are broken, can't be mounted anymore... btrfsfsck

Re: Problems with set-default, home subvolume and snapshot

2011-09-05 Thread Björn Kalkbrenner
Did you manage to capture that output at all? (A photo would do). Not yet, i am still on recovery from backup, that may take some time. If i am done, i'll re-attach the broken btrfs system and dump some information. It shouldn't be a big problem to redirect the kernel messages to a file.

Re: Problems with set-default, home subvolume and snapshot

2011-09-05 Thread Björn Kalkbrenner
Hi Ilya, Am 05.09.2011 15:07, schrieb Ilya Dryomov: Well, it's *sort of* expected if you think about it. When you mounted after set-default, your /home is no longer a valid subvolume access point (it was in the default subvolume, until you rebooted). Inside your snapshot /home is just an