On Sat, Apr 10, 2010 at 03:10:55AM +0000, Justin wrote: > As far as I know TRIM was enabled. I didn't forcibly disable it and I'm under > the assumption that btrfs enables it when an SSD is detected.
Btrfs won't use trim unless you do mount -o discard. So, if you weren't doing this that wasn't the cause. -chris > > > ---------- Original Message ---------- > From: Chris Mason <chris.ma...@oracle.com> > To: Justin <yoost...@netzero.com> > Cc: linux-btrfs@vger.kernel.org > Subject: Re: btrfs Bug? > Date: Fri, 9 Apr 2010 07:18:44 -0400 > > On Thu, Apr 08, 2010 at 06:46:40PM +0000, Justin wrote: > > Unfortunately I did reformat. > > Actually, I did a complete zero-out of the drive with dd, and then I ran > > "badblocks -w" on the drive, which returned 0 bad blocks (not sure if this > > is really a good test for SSD's as there's some amount of internal voo-doo > > on the drive itself). > > > > For future reference, how would I go about getting an image of the drive > > without being able to use btrfs-image? > > Well, we'll have to fixup btrfs-image to make it more tolerant of > errors. It needs options to skip corrupted sections of the btree and > encode what it can. > > In this case, I would have had you run btrfs-map-logical, which will > just read the one bad block and save its contents. > > We've had cases on ssd where every other byte was ff, so I was curious > how the bad block looked on your intel. > > Were you running with trim enabled? > > -chris > > > > ____________________________________________________________ > Penny Stock Jumping 2000% > Sign up to the #1 voted penny stock newsletter for free today! > http://thirdpartyoffers.netzero.net/TGL3231/4bbfec7c95e751a3b6bst04vuc > -- > 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 -- 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
