On Mon, Feb 10, 2020 at 04:15:53PM +0000, Russell King - ARM Linux admin wrote: > On Mon, Feb 10, 2020 at 04:28:23PM +0100, Olof Johansson wrote: > > On Mon, Feb 10, 2020 at 4:23 PM Russell King - ARM Linux admin > > <linux@xxxxxxxxxxxxxxx> wrote: > > > > > > On Mon, Feb 10, 2020 at 04:12:30PM +0100, Olof Johansson wrote: > > > > On Thu, Feb 6, 2020 at 11:57 AM Z.q. Hou <zhiqiang.hou@xxxxxxx> wrote: > > > > > > > > > > Hi Olof, > > > > > > > > > > Thanks a lot for your comments! > > > > > And sorry for my delay respond! > > > > > > > > Actually, they apply with only minor conflicts on top of current -next. > > > > > > > > Bjorn, any chance we can get you to pick these up pretty soon? They > > > > enable full use of a promising ARM developer system, the SolidRun > > > > HoneyComb, and would be quite valuable for me and others to be able to > > > > use with mainline or -next without any additional patches applied -- > > > > which this patchset achieves. > > > > > > > > I know there are pending revisions based on feedback. I'll leave it up > > > > to you and others to determine if that can be done with incremental > > > > patches on top, or if it should be fixed before the initial patchset > > > > is applied. But all in all, it's holding up adaption by me and surely > > > > others of a very interesting platform -- I'm looking to replace my > > > > aging MacchiatoBin with one of these and would need PCIe/NVMe to work > > > > before I do. > > > > > > If you're going to be using NVMe, make sure you use a power-fail safe > > > version; I've already had one instance where ext4 failed to mount > > > because of a corrupted journal using an XPG SX8200 after the Honeycomb > > > Serror'd, and then I powered it down after a few hours before later > > > booting it back up. > > > > > > EXT4-fs (nvme0n1p2): INFO: recovery required on readonly filesystem > > > EXT4-fs (nvme0n1p2): write access will be enabled during recovery > > > JBD2: journal transaction 80849 on nvme0n1p2-8 is corrupt. > > > EXT4-fs (nvme0n1p2): error loading journal > > > > Hmm, using btrfs on mine, not sure if the exposure is similar or not. > > As I understand the problem, it isn't a filesystem issue. It's a data > integrity issue with the NVMe over power fail, how they cache the data, > and ultimately write it to the nand flash. > > Have a read of: > > https://www.kingston.com/en/solutions/servers-data-centers/ssd-power-loss-protection This was the link I was actually looking for: http://industrial.adata.com/en/technology/92 but there's also: http://industrial.adata.com/en/technology/26 ADATA make the XPG SX8200: NVME Identify Controller: vid : 0x1cc1 ssvid : 0x1cc1 mn : ADATA SX8200PNP fr : R0906I -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTC broadband for 0.8mile line in suburbia: sync at 12.1Mbps down 622kbps up According to speedtest.net: 11.9Mbps down 500kbps up
