This issue appears to be an upstream bug, since you tested the latest upstream kernel. Would it be possible for you to open an upstream bug report[0]? That will allow the upstream Developers to examine the issue, and may provide a quicker resolution to the bug.
Please follow the instructions on the wiki page[0]. The first step is to email the appropriate mailing list. If no response is received, then a bug may be opened on bugzilla.kernel.org. Once this bug is reported upstream, please add the tag: 'kernel-bug- reported-upstream'. [0] https://wiki.ubuntu.com/Bugs/Upstream/kernel ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => Triaged ** Tags added: artful ** Also affects: linux (Ubuntu Artful) Importance: Medium Status: Triaged -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1704512 Title: MTX load commands fail on kernel 4.12 Status in linux package in Ubuntu: Triaged Status in linux source package in Artful: Triaged Bug description: After upgrading to 4.12rc0 (also tested on all RC's 4.12, and 4.13 git), the following mtx commands fail on an ML6000 with LTO5 FC drive attached to a qlogic 2462 HBA. Running Ubuntu Server 16.04 mtx -f /dev/sg19 load 16 0 Loading media from Storage Element 16 into drive 0...mtx: Request Sense: Long Report=yes mtx: Request Sense: Valid Residual=no mtx: Request Sense: Error Code=0 (Unknown?!) mtx: Request Sense: Sense Key=No Sense mtx: Request Sense: FileMark=no mtx: Request Sense: EOM=no mtx: Request Sense: ILI=no mtx: Request Sense: Additional Sense Code = 00 mtx: Request Sense: Additional Sense Qualifier = 00 mtx: Request Sense: BPV=no mtx: Request Sense: Error in CDB=no mtx: Request Sense: SKSV=no MOVE MEDIUM from Element Address 4111 to 256 Failed Downgrading to 4.11.10 resolves the issue. The issue (and fix) has been replicated on a server running Fedora with an NEOs T48 with an LTO6 SAS drive attached to LSI 3008. Commit hash from latest version that works is - v4.11-4395-g89c9fea Sorry if anything here is formatted wrong, first bug report. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1704512/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp