On Thu, May 26, 2022 at 02:38:53PM +0200, J.J. Berkhout wrote: > Firstly, if this is not the right place for this message, I apologize. > In this case, disregard. > > I have a problem which I suspect is a bug in libata, but of course I > could be wrong. > > The problem is: > After going from Linux Mint 19.3 Cinnamon kernel 5.4.0-97 to Linux Mint > 20.3 Cinnamon kernel 5.4.0-107 I discovered that I could not (reliably) > access my optical drive anymore. > It produces errors like: > ata1.00: exception Emask 0x10 SAct 0x0 SErr 0x40d0000 action 0xe frozen > ata1: SError: { PHYRdyChg CommWake 10B8B DevExch } > ata1.00: cmd a0/00:00:00:00:fc/00:00:00:00:00/a0 tag 0 pio 131072 in > Read(10) 28 00 00 00 05 61 00 00 40 00res > 50/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x10 (ATA bus error) > blk_update_request: I/O error, dev sr0, sector 5508 op 0x0:(READ) flags > 0x80700 phys_seg 19 prio class 0 > ata1.00: failed to set xfermode (err_mask=0x1) > FWIW, there seems to be a bunch of quirks for Pioneer optical drives related to set xfermode: /* * Devices which choke on SETXFER. Applies only if both the * device and controller are SATA. */ { "PIONEER DVD-RW DVRTD08", NULL, ATA_HORKAGE_NOSETXFER }, { "PIONEER DVD-RW DVRTD08A", NULL, ATA_HORKAGE_NOSETXFER }, { "PIONEER DVD-RW DVR-215", NULL, ATA_HORKAGE_NOSETXFER }, { "PIONEER DVD-RW DVR-212D", NULL, ATA_HORKAGE_NOSETXFER }, { "PIONEER DVD-RW DVR-216D", NULL, ATA_HORKAGE_NOSETXFER }, Perhaps you could try the following patch: diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 826d41f341e4..263f6a59b2cf 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -3987,6 +3987,7 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = { { "PIONEER DVD-RW DVR-215", NULL, ATA_HORKAGE_NOSETXFER }, { "PIONEER DVD-RW DVR-212D", NULL, ATA_HORKAGE_NOSETXFER }, { "PIONEER DVD-RW DVR-216D", NULL, ATA_HORKAGE_NOSETXFER }, + { "PIONEER BD-RW BDR-207M", NULL, ATA_HORKAGE_NOSETXFER }, /* Crucial BX100 SSD 500GB has broken LPM support */ { "CT500BX100SSD1", NULL, ATA_HORKAGE_NOLPM }, Kind regards, Niklas