** Also affects: linux (Ubuntu Xenial)
Importance: Medium
Assignee: Canonical Kernel Team (canonical-kernel-team)
Status: Triaged
** Changed in: linux (Ubuntu Xenial)
Status: Triaged => Fix Committed
** Changed in: linux (Ubuntu Xenial)
Assignee: Canonical Kernel Team (canonical-kernel-team) => Tim Gardner
(timg-tpi)
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https://bugs.launchpad.net/bugs/1547153
Title:
/sys/class/scsi_host/hostN/partition_number and .../mad_version
showing up BE on LE Ubuntu. (ibmvscsi)
Status in linux package in Ubuntu:
Fix Committed
Status in linux source package in Xenial:
Fix Committed
Bug description:
== Comment: #0 - ERIC P. FRIED <[email protected]> - 2015-06-15 18:29:28 ==
---Problem Description---
/sys/class/scsi_host/host0/partition_number and .../mad_version showing up BE
on LE Ubuntu.
---uname output---
Linux neo34 3.19.0-10-generic #10-Ubuntu SMP Mon Mar 23 16:18:35 UTC 2015
ppc64le ppc64le ppc64le GNU/Linux
---Additional Hardware Info---
Dual VIOS, Ubuntu partition is full virtual.
---Patches Installed---
VMC device driver for Neo project. Ask Steve Royer (seroyer@us) if it
matters.
Machine Type = type_model=8247-22L
---Debugger---
A debugger is not configured
---Steps to Reproduce---
neo@neo34:/sys/class/scsi_disk$ cat
/sys/module/ibmvscsi/drivers/vio\:ibmvscsi/30000006/host1/scsi_host/host1/partition_number
50331648
neo@neo34:/sys/class/scsi_disk$ cat
/sys/module/ibmvscsi/drivers/vio\:ibmvscsi/30000006/host1/scsi_host/host1/mad_version
16777216
Turns out these numbers are really big-endian versions of their real values.
In [60]: print("0x%x" % 50331648)
0x3000000
The actual partition ID of host1 is 3.
neo@neo34:/sys/class/scsi_disk$ lssyscfg -r lpar -F lpar_id --filter
lpar_names=vios2
3
Userspace tool common name: Not sure what this means. Use 'cat' to reproduce
the bug.
The userspace tool has the following bit modes: ?
Userspace rpm: Not sure what this means either. And I'm on Ubuntu, no
RPMs.
Userspace tool obtained from project website: na
*Additional Instructions for Eric Fried/[email protected] Brian
King/[email protected]:
-Post a private note with access information to the machine that the bug is
occuring on.
-Attach ltrace and strace of userspace application.
== Comment: #1 - TYREL N. DATWYLER <[email protected]> - 2016-02-17 17:46:17
==
Fix has been submitted upstream:
https://lkml.org/lkml/2016/2/10/792
== Comment: #2 - TYREL N. DATWYLER <[email protected]> - 2016-02-18 12:19:18
==
Fix has been accepted upstream into Martin Petersen's 4.6/scsi-queue branch.
http://git.kernel.org/cgit/linux/kernel/git/mkp/scsi.git/commit/?h=4.6
/scsi-queue&id=f9e3de0d6053ae89828188291a405c64d8d95a0e
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