SRU request submitted: https://lists.ubuntu.com/archives/kernel-team/2018-February/089837.html
** Description changed: - Some SSD drives made by LiteOn can crash the kernel due to bad drivers. - A fix for this issue has been submitted upstream: - https://git.kernel.org/pub/scm/linux/kernel/git/tj/libata.git/commit/?h=for-4.15-fixes + == SRU Justification == + Some SSD drives made by LiteOn can crash the kernel due to bad drivers. This is a + regression introduced by commit e0edc8c54646. This regression is fixed by mainline + commit db5ff909798, which was added to mailine in v4.15-rc9. + + This commit has already been added to Bionic via upstream stable udpates. Xenial + also needs this fix because it recieved the regression introducing commit e0edc8c54646 + via the 4.4.48 stable updates(See bug lp1663657). + + + == Fix == + commit db5ff909798ef0099004ad50a0ff5fde92426fd1 + Author: Xinyu Lin <xinyu0...@gmail.com> + Date: Sun Dec 17 20:13:39 2017 +0800 + + libata: apply MAX_SEC_1024 to all LITEON EP1 series devices + + == Regression Potential == + Low. This commit was also cc'd to upstream stable to fix a regression, so it + received extra upstream review. + + == Test Case == + A test kernel was built with this patch and tested by the original bug reporter. + The bug reporter states the test kernel resolved the bug. + + + == Original Bug Description == + Some SSD drives made by LiteOn can crash the kernel due to bad drivers. A fix for this issue has been submitted upstream: https://git.kernel.org/pub/scm/linux/kernel/git/tj/libata.git/commit/?h=for-4.15-fixes LITEON EP1 has the same timeout issues as CX1 series devices. Revert max_sectors to the value of 1024. 'e0edc8c54646 ("libata: apply MAX_SEC_1024 to all CX1-JB*-HP devices")' Signed-off-by: Xinyu Lin <xinyu0...@gmail.com> Signed-off-by: Tejun Heo <t...@kernel.org> Cc: sta...@vger.kernel.org - - At a high level the root cause of this problem is that the device only supports commands with a transfer size up to 512KB. This worked fine with older versions of Linux but newer versions are attempting commands with a transfer size of 1280KB which is problematic for this device (LITEON EP1-KB480) + At a high level the root cause of this problem is that the device only + supports commands with a transfer size up to 512KB. This worked fine + with older versions of Linux but newer versions are attempting commands + with a transfer size of 1280KB which is problematic for this device + (LITEON EP1-KB480) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1743053 Title: libata: apply MAX_SEC_1024 to all LITEON EP1 series devices To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1743053/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
