]> git.proxmox.com Git - mirror_ubuntu-jammy-kernel.git/commit
ata: libata-core: Disable READ LOG DMA EXT for Samsung 840 EVOs
authorChristian Lamparter <chunkeey@gmail.com>
Sat, 19 Mar 2022 20:11:03 +0000 (21:11 +0100)
committerStefan Bader <stefan.bader@canonical.com>
Fri, 20 May 2022 12:42:28 +0000 (14:42 +0200)
commita6dce998df937f7e8e83a02e85b70f442ebc97e9
tree8b48f69b198f9edf66d022f7b3da97a5ab3e0dcc
parent3b7496aac378ac688aaa89fdd6d54120a17bd736
ata: libata-core: Disable READ LOG DMA EXT for Samsung 840 EVOs

BugLink: https://bugs.launchpad.net/bugs/1969857
[ Upstream commit 5399752299396a3c9df6617f4b3c907d7aa4ded8 ]

Samsung' 840 EVO with the latest firmware (EXT0DB6Q) locks up with
the a message: "READ LOG DMA EXT failed, trying PIO" during boot.

Initially this was discovered because it caused a crash
with the sata_dwc_460ex controller on a WD MyBook Live DUO.

The reporter "Tice Rex" which has the unique opportunity that he
has two Samsung 840 EVO SSD! One with the older firmware "EXT0BB0Q"
which booted fine and didn't expose "READ LOG DMA EXT". But the
newer/latest firmware "EXT0DB6Q" caused the headaches.

BugLink: https://github.com/openwrt/openwrt/issues/9505
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
drivers/ata/libata-core.c