Chris Mason, Mon, 20 Sep 2010 08:13:07 -0400: > On Mon, Sep 20, 2010 at 12:10:08PM +0000, Lubos Kolouch wrote: >> On Mon, 20 Sep 2010 07:30:57 -0400, Chris Mason wrote: >> >> > On Mon, Sep 20, 2010 at 11:00:08AM +0000, Lubos Kolouch wrote: >> >> No, not stable! >> >> >> >> Again, after powerloss, I have *two* damaged btrfs filesystems. >> > >> > Please tell me more about your system. I do extensive power fail >> > testing here without problems, and corruptions after powerloss are >> > very often caused by the actual hardware. >> > >> > So, what kind of drives do you have, do they have writeback caching >> > on, and what are you layering on top of the drive between btrfs and >> > the kernel? >> > >> > -chris >> > >> > >> Hello Chris, >> >> The system is running with 128GB SDD Samsung disk. The partition is >> encrypted with LUKS and on top btrfs filesystem is created. > > Ok, we're seeing consistent reports of corruptions after power failure > with dm-crypt. The barriers must not be getting down to the device. > > >> The backup disk is a 160GB WD notebook disk connected via IDE->USB >> cable, whole formatted with LUKS and btrfs on top. >> >> Actually, if there was any way (non-standard) how to mount the system >> and recover even part of the data, I would be very grateful. > > We can definitely try. Please send me email with the errors from > btrfsck and I'll work on a patch that gets you read only access.
Just for the record - thanks to Chris I could recover the data in read- only mode, thanks again. So are there any recommendations (mount options etc.) for running btrfs on LUKS encrypted partition? Thank you Lubos -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
