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Message #43914
[Bug 1154749] Re: reboot does a shutdown instead of rebooting (OCP v2)
I've traced this bug to changes introduced with the 3.2.0 kernel;
kernels up to the 3.1.9 kernel reboot just fine.
The driver provided by Samantha earlier is very similar to the 3.0.x
drivers.
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https://bugs.launchpad.net/bugs/1154749
Title:
reboot does a shutdown instead of rebooting (OCP v2)
Status in OEM Priority Project:
Invalid
Status in Open Compute Project:
New
Status in “linux” package in Ubuntu:
Confirmed
Bug description:
On the OCP v2 compliant system (Windmill OCP motherboard v2), the
system hang at the reboot startup. This issue happens on 12.04.1,
12.04.2 and 12.10.
The work around in http://ubuntuforums.org/showthread.php?t=2024096,
blacklisting mei, works. Note the first reboot doesn't work, but the
subsequent reboots work.
mei in 12.04.1
$ modinfo mei
filename: /lib/modules/3.2.0-38-generic/kernel/drivers/staging/mei/mei.ko
version: 7.1.20.1
license: GPL v2
description: Intel(R) Management Engine Interface
author: Intel Corporation
srcversion: 9252880194B02634B5F0427
Kernel mei message before blacklisted:
kernel: [ 6.961623] mei: module is from the staging directory, the quality is unknown, you have been warned.
kernel: [ 6.962226] mei 0000:00:16.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
kernel: [ 6.962235] mei 0000:00:16.0: setting latency timer to 64
kernel: [ 6.962310] mei 0000:00:16.0: irq 104 for MSI/MSI-X
mei in 12.04.2
$ modinfo mei
filename: /lib/modules/3.5.0-25-generic/kernel/drivers/misc/mei/mei.ko
license: GPL v2
description: Intel(R) Management Engine Interface
author: Intel Corporation
srcversion: 0580619CB5DEF6AB7228EBE
Kernel mei message before blacklisted:
kernel: [ 6.543470] mei 0000:00:16.0: setting latency timer to 64
kernel: [ 6.543547] mei 0000:00:16.0: irq 104 for MSI/MSI-X
kernel: [ 6.547516] mei 0000:00:16.0: wd: failed to find the client
mei in 12.10
$ modinfo mei
filename: /lib/modules/3.5.0-21-generic/kernel/drivers/misc/mei/mei.ko
license: GPL v2
description: Intel(R) Management Engine Interface
author: Intel Corporation
srcversion: 0580619CB5DEF6AB7228EBE
Kernel mei message before blacklisted:
kernel: [ 4.731997] mei 0000:00:16.0: setting latency timer to 64
kernel: [ 4.736801] mei 0000:00:16.0: irq 104 for MSI/MSI-X
kernel: [ 4.741695] mei 0000:00:16.0: wd: failed to find the client
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