Hans de Goede - 11.03.18, 15:37: > Hi Martin, > > On 11-03-18 09:20, Martin Steigerwald wrote: > > Hello. > > > > Since 4.16-rc4 (upgraded from 4.15.2 which worked) I have an issue > > with SMART checks occassionally failing like this: > > > > smartd: Device: /dev/sdb [SAT], is in SLEEP mode, suspending checks > > udisksd: Error performing housekeeping for drive > > /org/freedesktop/UDisks2/drives/INTEL_SSDSA2CW300G3_[…]: Error updating > > SMART data: Error sending ATA command CHECK POWER MODE: Unexpected sense > > data returned:#0120000: 0e 09 0c 00 00 00 ff 00 00 00 00 00 00 00 50 > > 00 ..............P.#0120010: 00 00 00 00 00 00 00 00 00 00 00 00 00 > > 00 00 00 ................#012 (g-io-error-quark, 0) merkaba > > udisksd: Error performing housekeeping for drive > > /org/freedesktop/UDisks2/drives/Crucial_CT480M500SSD3_[…]: Error updating > > SMART dat a: Error sending ATA command CHECK POWER MODE: Unexpected sense > > data returned:#0120000: 01 00 1d 00 00 00 0e 09 0c 00 00 00 ff 00 00 > > 00 ................#0120010: 00 0 0 00 00 50 00 00 00 00 00 00 00 > > 00 00 00 00 ....P...........#012 (g-io-error-quark, 0) > > > > (Intel SSD is connected via SATA, Crucial via mSATA in a ThinkPad T520) > > > > However when I then check manually with smartctl -a | -x | -H the device > > reports SMART data just fine. > > > > As smartd correctly detects that device is in sleep mode, this may be an > > userspace issue in udisksd. > > > > Also at some boot attempts the boot hangs with a message like "could not > > connect to lvmetad, scanning manually for devices". I use BTRFS RAID 1 > > on to LVs (each on one of the SSDs). A configuration that requires a > > manual > > adaption to InitRAMFS in order to boot (basically vgchange -ay before > > btrfs device scan). > > > > I wonder whether that has to do with the new SATA LPM policy stuff, but as > > I had issues with > > > > 3 => Medium power with Device Initiated PM enabled > > > > (machine did not boot, which could also have been caused by me > > accidentally > > removing all TCP/IP network support in the kernel with that setting) > > > > I set it back to > > > > CONFIG_SATA_MOBILE_LPM_POLICY=0 > > > > (firmware settings) > > Right, so at that settings the LPM policy changes are effectively > disabled and cannot explain your SMART issues.
Yes, I now good a photo of one of those boot failures I mentioned, at it seems to be related to blk-mq, as the backtrace contains "blk_mq_terminate_expired". I add the screenshot to my bug report. [Possible REGRESSION, 4.16-rc4] Error updating SMART data during runtime and boot failures with blk_mq_terminate_expired in backtrace https://bugzilla.kernel.org/show_bug.cgi?id=199077 Hans, I will test your LPM policy horkage for Crucial m500 patch at a later time. I first wanted to add the photo of the boot failure to the bug report. Ming and Bart, I added you to cc, cause I had to do with you about another blk-mq report, please feel free to adapt. Thanks, -- Martin