Ubuntu
linux package

power-nv ppc64el need to blacklist shpchp

Bug #1374440 reported by Scott Moser on 2014-09-26

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	linux (Ubuntu)	Fix Released	Medium	Tim Gardner
	Utopic	Fix Released	Medium	Tim Gardner

Bug Description

The shpchp module seems to be causing issues on some ppc64el hardware.
We're able to work around the issue by blacklisting it as:

$ cat /etc/modprobe.d/blacklist-ppc64el.conf
blacklist shpchp

I've discussed this with Anton, and we came up with the above work around.
I'll attach a log of the failed boot. Note, that the shpchp.blacklist=yes command line parameters seem not to do anything (ie, just ignore them).

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: linux-image-3.16.0-17-generic 3.16.0-17.23
ProcVersionSignature: Ubuntu 3.16.0-17.23-generic 3.16.3
Uname: Linux 3.16.0-17-generic ppc64le
AlsaDevices: Error: command ['ls', '-l', '/dev/snd/'] failed with exit code 2: ls: cannot access /dev/snd/: No such file or directory
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.14.7-0ubuntu2
Architecture: ppc64el
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
Date: Fri Sep 26 12:54:29 2014
Lsusb:
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: root=UUID=aad7f49b-45f2-42ec-83b9-3233a014bae6 ro console=hvc0
ProcLoadAvg: 6.42 2.15 0.79 1/1156 5938
ProcLocks:
1: FLOCK ADVISORY WRITE 2515 00:11:45214 0 EOF
2: POSIX ADVISORY WRITE 2369 00:11:50266 0 EOF
3: POSIX ADVISORY WRITE 2567 00:11:47202 0 EOF
ProcSwaps:
Filename Type Size Used Priority
/swap.img file 8388544 0 -1
ProcVersion: Linux version 3.16.0-17-generic (buildd@fisher03) (gcc version 4.9.1 (Ubuntu 4.9.1-15ubuntu1) ) #23-Ubuntu SMP Fri Sep 19 16:54:14 UTC 2014
RelatedPackageVersions:
linux-restricted-modules-3.16.0-17-generic N/A
linux-backports-modules-3.16.0-17-generic N/A
linux-firmware 1.134
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
cpu_cores: Number of cores present = 20
cpu_coreson: Number of cores online = 19
cpu_dscr: DSCR is 0
cpu_runmode:
Could not retrieve current diagnostics mode,
No firmware implementation of function
cpu_smt: SMT is on

Tags:

Revision history for this message

Scott Moser (smoser) wrote on 2014-09-26:

console log Edit (80.2 KiB, text/plain)
AudioDevicesInUse.txt Edit (1.2 KiB, text/plain; charset="utf-8")
BootDmesg.txt Edit (91.2 KiB, text/plain; charset="utf-8")
CRDA.txt Edit (203 bytes, text/plain; charset="utf-8")
CurrentDmesg.txt Edit (1.1 KiB, text/plain; charset="utf-8")
Dependencies.txt Edit (3.1 KiB, text/plain; charset="utf-8")
DeviceTree.tar.gz Edit (118.0 KiB, application/x-gzip)
HookError_powerpc.txt Edit (604 bytes, text/plain; charset="utf-8")
IwConfig.txt Edit (173 bytes, text/plain; charset="utf-8")
Lspci.txt Edit (91.1 KiB, text/plain; charset="utf-8")
PciMultimedia.txt Edit (2.5 KiB, text/plain; charset="utf-8")
ProcCpuinfo.txt Edit (16.6 KiB, text/plain; charset="utf-8")
ProcInterrupts.txt Edit (110.2 KiB, text/plain; charset="utf-8")
ProcMisc.txt Edit (212 bytes, text/plain; charset="utf-8")
ProcModules.txt Edit (1.3 KiB, text/plain; charset="utf-8")
UdevDb.txt Edit (262.0 KiB, text/plain; charset="utf-8")
UdevLog.txt Edit (660.5 KiB, text/plain; charset="utf-8")
WifiSyslog.txt Edit (134.6 KiB, text/plain; charset="utf-8")

summary:

- need to blacklist shpchp
+ power-nv ppc64el need to blacklist shpchp

Revision history for this message

Brad Figg (brad-figg) wrote on 2014-09-26: Status changed to Confirmed

This change was made by a bot.

Changed in linux (Ubuntu):
status:	New → Confirmed

Revision history for this message

Tim Gardner (timg-tpi) wrote on 2014-09-26:

UBUNTU: [Config] CONFIG_HOTPLUG_PCI_SHPC=n for ppc64el

Changed in linux (Ubuntu Utopic):
assignee:	nobody → Tim Gardner (timg-tpi)
status:	Confirmed → Fix Committed

Revision history for this message

Anton Blanchard (anton-samba) wrote on 2014-09-26:

Talking to benh, the main issue in the PCIE hotplug driver. Unfortunately that is not a module:

CONFIG_HOTPLUG_PCI_PCIE=y

Could we get that disabled in the ppc64le defconfig? We don't have any hardware that needs it.

Revision history for this message

Tim Gardner (timg-tpi) wrote on 2014-09-27:

UBUNTU: [Config] CONFIG_HOTPLUG_PCI_PCIE=n for ppc64el

I think I'll leave HOTPLUG_PCI_SHPC=n and SND_HDA_INTEL=n for now. Are there ppc64el platforms that have a SHPC PCI
Hotplug controller ?

HOTPLUG_PCI_SHPC is only dependent on HOTPLUG_PCI (and not CONFIG_HOTPLUG_PCI_PCIE)
SND_HDA_INTEL is only dependent on SND_PCI (and not CONFIG_HOTPLUG_PCI_PCIE)

Joseph Salisbury (jsalisbury) on 2014-09-29

Changed in linux (Ubuntu Utopic):
importance:	Undecided → Medium

Revision history for this message

Launchpad Janitor (janitor) wrote on 2014-10-02:

This bug was fixed in the package linux - 3.16.0-20.27

---------------
linux (3.16.0-20.27) utopic; urgency=low

[ Tim Gardner ]

  * [Config] CONFIG_CXL=m
  * Release Tracking Bug
    - LP: #1376354

[ Andi Kleen ]

* SAUCE: perf tools: Fix perf record as non root with kptr_restrict == 1
- LP: #1375441

[ Chris J Arges ]

* SAUCE: Revert "sd: don't use scsi_setup_blk_pc_cmnd for flush requests"
- LP: #1375452

[ Ian Munsie ]

  * SAUCE: (no-up) powerpc/cell: Move spu_handle_mm_fault() out of cell platform
  * SAUCE: (no-up) powerpc/cell: Move data segment faulting code out of cell platform
  * SAUCE: (no-up) powerpc/msi: Improve IRQ bitmap allocator
  * SAUCE: (no-up) powerpc/mm: Export mmu_kernel_ssize and mmu_linear_psize
  * SAUCE: (no-up) powerpc/powernv: Split out set MSI IRQ chip code
  * SAUCE: (no-up) cxl: Add new header for call backs and structs
  * SAUCE: (no-up) powerpc/powerpc: Add new PCIe functions for allocating cxl interrupts
  * SAUCE: (no-up) powerpc/mm: Add new hash_page_mm()
  * SAUCE: (no-up) powerpc/opal: Add PHB to cxl mode call
  * SAUCE: (no-up) powerpc/mm: Add hooks for cxl
  * SAUCE: (no-up) cxl: Add base builtin support
  * SAUCE: (no-up) cxl: Driver code for powernv PCIe based cards for userspace access
  * SAUCE: (no-up) cxl: Userspace header file.
  * SAUCE: (no-up) cxl: Add driver to Kbuild and Makefiles
  * SAUCE: (no-up) cxl: Add documentation for userspace APIs
-- Tim Gardner <email address hidden> Tue, 30 Sep 2014 13:05:27 -0600

Changed in linux (Ubuntu Utopic):
status:	Fix Committed → Fix Released

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power-nv ppc64el need to blacklist shpchp

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