** Description changed: - It was found in ledmon 0.74-1 that functionality on Dell SSD devices - broke. - The Dell PCIE SSDs do not have a 'hostN' field in their sysfs paths as - they are block devices directly connected to their host PCI device. + [Impact] - A patch has been applied upstream and went into ledmon 0.75 to address - the issue: + * The ledmon version included in Raring contained a bug that broke PCIe SSD devices + on Dell Server Hardware. The Dell PCIE SSDs do not have a 'hostN' field in their sysfs paths as they are block devices directly connected to their host PCI device. - http://ledmon.git.sourceforge.net/git/gitweb.cgi?p=ledmon/ledmon;a=commitdiff;h=d6b7c55869fa7a5224844407ef2d5aab785c4db8 + * The bug caused these devices to stop being recognized properly in the + OS. + + [Test Case] + + * Install ledmon 0.74-1 onto a raring server with the appropriate PCIE + SSD hardware. + + * run 'sudo ledmon' to start the led monitor. + + * Look in /var/log/syslog..you'll see messages such as the following + repeated continuously several times as the OS tries to figure out what + the SSD device is: + + ledmon[2449]: Device (null) : No host_id! + ledmon[2449]: DETACHED DEV '(null)' in failed state + + * With the upstream patch in place and after restarting ledmon, the "no + host_id" and "DETACHED_DEV" messages will go away and the PCIe SSD + devices are detected correctly. + + + [Regression Potential] + + * Low. This fix is very targeted to the PCIE SSD hardware on Dell + systems, and should not break any other devices. + + * Tested by me on the specific hardware to ensure that the regression has gone away. + + + [Other Info] + + Here is the upstream commit that eventually went into upstream ledmon + 0.75:
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1174386 Title: Add upstream fix for Dell PCIeSSD devices To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ledmon/+bug/1174386/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
