(maybe I should also put this into the PR) > ahcisata0 port 1: device present, speed: 3.0Gb/s > > for the two attached SSDs, seemingly triggered by disk activity. These > SSDs are running as a RAIDframe mirror. Unpacking the 9.0_RC1 sets with > the new kernel triggered around 50 of these, as well as a few "soft > error (corrected)" messages like these: > > wd0a: error writing fsbn 15440256 of 15440256-15440271 (wd0 bn 15452544; > cn 15329 tn 14 sn 30), xfer 330, retry 0 : > Second, can this be fixed assuming it's a software issue? :)
I have similar problems, as filed in PR/54790. https://gnats.netbsd.org/54790 No "ahcisata0 port 1: device present, speed: 3.0Gb/s" but many soft errors. No error on NetBSD 8.1 GENERIC. The problem here doesn't happen once after disabling NCQ by "hw.wd2.use_ncq=0" in /etc/sysctl.conf. One interesting point: Yours are > wd0: <Samsung SSD 860 EVO 1TB> > wd0: drive supports 1-sector PIO transfers, LBA48 addressing > wd0: 931 GB, 1938021 cyl, 16 head, 63 sec, 512 bytes/sect x 1953525168 sectors > wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133), > WRITE DMA FUA, NCQ (32 tags) > wd0(ahcisata0:0:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 6 > (Ultra/133) (using DMA), NCQ (31 tags) Mine is also Samsung SSD 860 EVO: > wd2: <Samsung SSD 860 EVO 500GB> > wd2: drive supports 1-sector PIO transfers, LBA48 addressing > wd2: 465 GB, 969021 cyl, 16 head, 63 sec, 512 bytes/sect x 976773168 sectors > wd2: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133), > WRITE DMA FUA, NCQ (32 tags) > wd2(ahcisata0:2:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 6 > (Ultra/133) (using DMA), NCQ (31 tags) No errors on the following drives on my other machine: > wd0 at atabus0 drive 0 > wd0: <TS1TSSD230S> > wd0: drive supports 2-sector PIO transfers, LBA48 addressing > wd0: 953 GB, 1984533 cyl, 16 head, 63 sec, 512 bytes/sect x 2000409264 sectors > wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133), > WRITE DMA FUA, NCQ (32 tags) > wd0(ahcisata0:0:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 6 > (Ultra/133) (using DMA), NCQ (31 tags) > wd1 at atabus1 drive 0 > wd1: <INTEL SSDSC2CT240A4> > wd1: drive supports 16-sector PIO transfers, LBA48 addressing > wd1: 223 GB, 465141 cyl, 16 head, 63 sec, 512 bytes/sect x 468862128 sectors > wd1: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133), > WRITE DMA FUA, NCQ (32 tags) > wd1(ahcisata0:1:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 6 > (Ultra/133) (using DMA), NCQ (31 tags) There might be some device quirk around NCQ of Samsung SSD 860 EVO? --- Izumi Tsutsui