[Kernel-packages] [Bug 1410817] Re: Kdump triggered manually after cpu offline operation fails to collect dump

2015-02-26 Thread Leann Ogasawara
** Changed in: linux (Ubuntu)
   Status: Fix Committed = Fix Released

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https://bugs.launchpad.net/bugs/1410817

Title:
  Kdump triggered manually after cpu offline operation fails to collect
  dump

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Utopic:
  Fix Released

Bug description:
  SRU Justification:

  [Impact]
  Kdump triggered manually after cpu offline operation fails to collect dump

  [Test Case]
  See Steps to Reproduce below.

  [Fix]
  $ git describe --contains c1caae3de46a072d0855729aed6e793e536a4a55
  v3.19-rc3~1^2~1

  --

  
  ---Problem Description---
  Kdump triggered manually after cpu offline operation fails to collect dump

  ---uname output---
  Linux ubuntu 3.18.0-9-generic #10-Ubuntu SMP Mon Jan 12 21:35:28 UTC 2015 
ppc64le ppc64le ppc64le GNU/Linux

  Machine Type = P8

  ---System Hang---
  We have to reboot the LPAR and gain access to the machine again.

  ---Steps to Reproduce---
  Install a Power VM LPAR with Ubuntu 15.04 ISO using Virtual DVD.
  Then offline one of the cpu's of the machine.

  root@ubuntu:~# lscpu
  Architecture:  ppc64le
  Byte Order:Little Endian
  CPU(s):16
  On-line CPU(s) list:   0-15
  Thread(s) per core:8
  Core(s) per socket:1
  Socket(s): 2
  NUMA node(s):  2
  Model: IBM,8284-22A
  Hypervisor vendor: pHyp
  Virtualization type:   para
  L1d cache: 64K
  L1i cache: 32K
  NUMA node0 CPU(s): 0-15
  NUMA node2 CPU(s):

  root@ubuntu:~# chcpu -d 15
  CPU 15 disabled

  root@ubuntu:~# lscpu
  Architecture:  ppc64le
  Byte Order:Little Endian
  CPU(s):16
  On-line CPU(s) list:   0-14
  Off-line CPU(s) list:  15
  Thread(s) per core:7
  Core(s) per socket:1
  Socket(s): 2
  NUMA node(s):  2
  Model: IBM,8284-22A
  Hypervisor vendor: pHyp
  Virtualization type:   para
  L1d cache: 64K
  L1i cache: 32K
  NUMA node0 CPU(s): 0-14
  NUMA node2 CPU(s):

  Configure and enable kdump on the LPAR.

  root@ubuntu:~# /etc/init.d/kdump-tools status
  current state   : ready to kdump
  root@ubuntu:~# kdump-config load
  Modified cmdline:BOOT_IMAGE=/boot/vmlinux-3.18.0-9-generic 
root=UUID=70957e56-8669-466f-b0e7-140f2ec39a04 ro splash quiet irqpoll 
maxcpus=1 nousb elfcorehdr=155072K
  segment[0].mem:0x800 memsz:24510464
  segment[1].mem:0x976 memsz:65536
  segment[2].mem:0x977 memsz:65536
  segment[3].mem:0x978 memsz:65536
  segment[4].mem:0x979 memsz:22020096
  segment[5].mem:0xec7 memsz:196608
   * loaded kdump kernel
  root@ubuntu:~#

  root@ubuntu:~# kdump-config show
  USE_KDUMP:1
  KDUMP_SYSCTL: kernel.panic_on_oops=1
  KDUMP_COREDIR:/var/crash
  crashkernel addr:
  current state:ready to kdump

  kexec command:
    /sbin/kexec -p --args-linux 
--command-line=BOOT_IMAGE=/boot/vmlinux-3.18.0-9-generic 
root=UUID=70957e56-8669-466f-b0e7-140f2ec39a04 ro splash quiet irqpoll 
maxcpus=1 nousb --initrd=/boot/initrd.img-3.18.0-9-generic 
/boot/vmlinux-3.18.0-9-generic
  root@ubuntu:~# kdump-config status
  current state   : ready to kdump

  root@ubuntu:~# sysctl -w kernel.sysrq=1
  kernel.sysrq = 1
  root@ubuntu:~# cat /proc/sys/kernel/sysrq
  1

  Trigger the crash manually using sysrq-trigger.

  root@ubuntu:~# echo c  /proc/sysrq-trigger

  root@ubuntu:~# [  311.088315] SysRq : Trigger a crash
  [  311.088331] Unable to handle kernel paging request for data at address 
0x
  [  311.088336] Faulting instruction address: 0xc05f9094
  [  311.088341] Oops: Kernel access of bad area, sig: 11 [#1]
  [  311.088344] SMP NR_CPUS=2048 NUMA pSeries
  [  311.088349] Modules linked in: xt_CHECKSUM iptable_mangle ipt_MASQUERADE 
nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 
nf_nat nf_conntrack xt_tcpudp bridge stp llc iptable_filter ip_tables x_tables 
pseries_rng rtc_generic binfmt_misc
  [  311.088372] CPU: 14 PID: 1705 Comm: bash Not tainted 3.18.0-9-generic 
#10-Ubuntu
  [  311.088377] task: c0027773e470 ti: c002782d task.ti: 
c002782d
  [  311.088381] NIP: c05f9094 LR: c05fa12c CTR: 
c05f9060
  [  311.088385] REGS: c002782d39d0 TRAP: 0300   Not tainted  
(3.18.0-9-generic)
  [  311.088389] MSR: 80009033 SF,EE,ME,IR,DR,RI,LE  CR: 28242822  
XER: 0001
  [  311.088401] CFAR: c00084d8 DAR:  DSISR: 4200 
SOFTE: 1
  GPR00: c05fa12c c002782d3c50 c1426890 0063
  GPR04: c1b85c28 c1b965e0 00ff c15e71f0
  GPR08: c0e76890 0001  0001
  GPR12: c05f9060 c7b37e00  2200
 

[Kernel-packages] [Bug 1410817] Re: Kdump triggered manually after cpu offline operation fails to collect dump

2015-02-24 Thread Launchpad Bug Tracker
This bug was fixed in the package linux - 3.16.0-31.41

---
linux (3.16.0-31.41) utopic; urgency=low

  [ Seth Forshee ]

  * Release Tracking Bug
- LP: #1419961

  [ Andy Whitcroft ]

  * [Debian] arm64 -- build ubuntu drivers
- LP: #1411284
  * hyper-v -- fix comment handing in /etc/network/interfaces
- LP: #1413020

  [ Ben Hutchings ]

  * SAUCE: rtsx_usb_ms: Use msleep_interruptible() in polling loop
- LP: #1413149

  [ Brad Figg ]

  * SAUCE: Config IWLWIFI_UAPSD=N

  [ Kamal Mostafa ]

  * [Packaging] force dpkg-source -I -i behavior

  [ Kukjin Kim ]

  * SAUCE: (no-up) ARM: SAMSUNG: fix the CPU_ID for EXYNOS5440
- LP: #1411062

  [ Leann Ogasawara ]

  * ubuntu: AUFS -- Resolve build failure union has no member named
'd_child'

  [ Ming Lei ]

  * SAUCE: (no-up) ARM: EXYNOS: fix booting oops on exynos5440
- LP: #1411062
  * SAUCE: (no-up) ARM: exynos5440-sd5v1: switch to fixed-link DT binding
- LP: #1417339
  * SAUCE: (no-up) net: stmmac: add fixed_phy support via fixed-link DT
binding
- LP: #1417339

  [ Upstream Kernel Changes ]

  * Revert [SCSI] mpt2sas: Remove phys on topology change.
- LP: #1419125
  * Revert [SCSI] mpt3sas: Remove phys on topology change
- LP: #1419125
  * Revert ARM: 7830/1: delay: don't bother reporting bogomips in
/proc/cpuinfo
- LP: #1419125
  * powerpc/powernv: Don't call generic code on offline cpus
- LP: #1400411
  * powerpc/powernv: Return to cpu offline loop when finished in KVM guest
- LP: #1400411
  * powerpc/powernv: Switch off MMU before entering nap/sleep/rvwinkle mode
- LP: #1400411
  * powerpc/powernv: Enable Offline CPUs to enter deep idle states
- LP: #1400411
  * powernv/cpuidle: Redesign idle states management
- LP: #1400411
  * powernv/powerpc: Add winkle support for offline cpus
- LP: #1400411
  * powerpc/kdump: Ignore failure in enabling big endian exception during
crash
- LP: #1410817
  * powerpc/perf/hv-24x7: Use kmem_cache_free
- LP: #1410519
  * powerpc/perf/hv-24x7: use kmem_cache instead of aligned stack
allocations
- LP: #1410519
  * powerpc/perf/hv-24x7: Use per-cpu page buffer
- LP: #1410519
  * power/perf/hv-24x7: Use kmem_cache_free() instead of kfree
- LP: #1410519
  * KVM: x86: SYSENTER emulation is broken
- LP: #1414651
- CVE-2015-0239
  * powerpc/xmon: Fix another endiannes issue in RTAS call from xmon
- LP: #1415919
  * HID: i2c-hid: call the hid driver's suspend and resume callbacks
- LP: #1417363
  * HID: i2c-hid: Do not free buffers in i2c_hid_stop()
- LP: #1417363
  * ALSA: hda - add mic mute led hook for dell machines
- LP: #1418832
  * ALSA: hda - move DELL_WMI_MIC_MUTE_LED to the tail in the quirk chain
- LP: #1381856, #1418832
  * ALSA: hda - fix the mic mute led problem for Latitude E5550
- LP: #1381856, #1418832
  * drm/i915: don't warn if backlight unexpectedly enabled
- LP: #1419125
  * drm/i915/dp: only use training pattern 3 on platforms that support it
- LP: #1419125
  * udptunnel: Add SKB_GSO_UDP_TUNNEL during gro_complete.
- LP: #1419125
  * s390/3215: fix hanging console issue
- LP: #1419125
  * s390/3215: fix tty output containing tabs
- LP: #1419125
  * btrfs: don't go readonly on existing qgroup items
- LP: #1419125
  * regulator: anatop: Set default voltage selector for vddpu
- LP: #1419125
  * KVM: s390: Fix size of monitor-class number field
- LP: #1419125
  * [media] smiapp: Take mutex during PLL update in sensor initialisation
- LP: #1419125
  * [media] smiapp-pll: Correct clock debug prints
- LP: #1419125
  * Bluetooth: Fix LE connection timeout deadlock
- LP: #1419125
  * [media] sound: simplify au0828 quirk table
- LP: #1419125
  * [media] sound: Update au0828 quirks table
- LP: #1419125
  * [media] af9005: fix kernel panic on init if compiled without IR
- LP: #1419125
  * writeback: fix a subtle race condition in I_DIRTY clearing
- LP: #1419125
  * usb: renesas_usbhs: gadget: fix NULL pointer dereference in
ep_disable()
- LP: #1419125
  * KVM: s390: Fix ipte locking
- LP: #1419125
  * KVM: s390: flush CPU on load control
- LP: #1419125
  * UBI: Fix double free after do_sync_erase()
- LP: #1419125
  * UBI: Fix invalid vfree()
- LP: #1419125
  * Drivers: hv: vmbus: Fix a race condition when unregistering a device
- LP: #1419125
  * misc: genwqe: check for error from get_user_pages_fast()
- LP: #1419125
  * driver core: Fix unbalanced device reference in drivers_probe
- LP: #1419125
  * drbd: merge_bvec_fn: properly remap bvm-bi_bdev
- LP: #1419125
  * PCI: Restore detection of read-only BARs
- LP: #1419125
  * scsi: correct return values for .eh_abort_handler implementations
- LP: #1419125
  * drm/radeon: fix typo in CI dpm disable
- LP: #1419125
  * ARM: tegra: Re-add removed SoC id macro to tegra_resume()
- LP: #1419125
  * arm64: Add 

[Kernel-packages] [Bug 1410817] Re: Kdump triggered manually after cpu offline operation fails to collect dump

2015-02-23 Thread Breno Leitão
Checked internally at IBM. Marking it as verification done.

** Tags removed: verification-needed-utopic
** Tags added: verification-done-utopic

-- 
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https://bugs.launchpad.net/bugs/1410817

Title:
  Kdump triggered manually after cpu offline operation fails to collect
  dump

Status in linux package in Ubuntu:
  Fix Committed
Status in linux source package in Utopic:
  Fix Committed

Bug description:
  SRU Justification:

  [Impact]
  Kdump triggered manually after cpu offline operation fails to collect dump

  [Test Case]
  See Steps to Reproduce below.

  [Fix]
  $ git describe --contains c1caae3de46a072d0855729aed6e793e536a4a55
  v3.19-rc3~1^2~1

  --

  
  ---Problem Description---
  Kdump triggered manually after cpu offline operation fails to collect dump

  ---uname output---
  Linux ubuntu 3.18.0-9-generic #10-Ubuntu SMP Mon Jan 12 21:35:28 UTC 2015 
ppc64le ppc64le ppc64le GNU/Linux

  Machine Type = P8

  ---System Hang---
  We have to reboot the LPAR and gain access to the machine again.

  ---Steps to Reproduce---
  Install a Power VM LPAR with Ubuntu 15.04 ISO using Virtual DVD.
  Then offline one of the cpu's of the machine.

  root@ubuntu:~# lscpu
  Architecture:  ppc64le
  Byte Order:Little Endian
  CPU(s):16
  On-line CPU(s) list:   0-15
  Thread(s) per core:8
  Core(s) per socket:1
  Socket(s): 2
  NUMA node(s):  2
  Model: IBM,8284-22A
  Hypervisor vendor: pHyp
  Virtualization type:   para
  L1d cache: 64K
  L1i cache: 32K
  NUMA node0 CPU(s): 0-15
  NUMA node2 CPU(s):

  root@ubuntu:~# chcpu -d 15
  CPU 15 disabled

  root@ubuntu:~# lscpu
  Architecture:  ppc64le
  Byte Order:Little Endian
  CPU(s):16
  On-line CPU(s) list:   0-14
  Off-line CPU(s) list:  15
  Thread(s) per core:7
  Core(s) per socket:1
  Socket(s): 2
  NUMA node(s):  2
  Model: IBM,8284-22A
  Hypervisor vendor: pHyp
  Virtualization type:   para
  L1d cache: 64K
  L1i cache: 32K
  NUMA node0 CPU(s): 0-14
  NUMA node2 CPU(s):

  Configure and enable kdump on the LPAR.

  root@ubuntu:~# /etc/init.d/kdump-tools status
  current state   : ready to kdump
  root@ubuntu:~# kdump-config load
  Modified cmdline:BOOT_IMAGE=/boot/vmlinux-3.18.0-9-generic 
root=UUID=70957e56-8669-466f-b0e7-140f2ec39a04 ro splash quiet irqpoll 
maxcpus=1 nousb elfcorehdr=155072K
  segment[0].mem:0x800 memsz:24510464
  segment[1].mem:0x976 memsz:65536
  segment[2].mem:0x977 memsz:65536
  segment[3].mem:0x978 memsz:65536
  segment[4].mem:0x979 memsz:22020096
  segment[5].mem:0xec7 memsz:196608
   * loaded kdump kernel
  root@ubuntu:~#

  root@ubuntu:~# kdump-config show
  USE_KDUMP:1
  KDUMP_SYSCTL: kernel.panic_on_oops=1
  KDUMP_COREDIR:/var/crash
  crashkernel addr:
  current state:ready to kdump

  kexec command:
    /sbin/kexec -p --args-linux 
--command-line=BOOT_IMAGE=/boot/vmlinux-3.18.0-9-generic 
root=UUID=70957e56-8669-466f-b0e7-140f2ec39a04 ro splash quiet irqpoll 
maxcpus=1 nousb --initrd=/boot/initrd.img-3.18.0-9-generic 
/boot/vmlinux-3.18.0-9-generic
  root@ubuntu:~# kdump-config status
  current state   : ready to kdump

  root@ubuntu:~# sysctl -w kernel.sysrq=1
  kernel.sysrq = 1
  root@ubuntu:~# cat /proc/sys/kernel/sysrq
  1

  Trigger the crash manually using sysrq-trigger.

  root@ubuntu:~# echo c  /proc/sysrq-trigger

  root@ubuntu:~# [  311.088315] SysRq : Trigger a crash
  [  311.088331] Unable to handle kernel paging request for data at address 
0x
  [  311.088336] Faulting instruction address: 0xc05f9094
  [  311.088341] Oops: Kernel access of bad area, sig: 11 [#1]
  [  311.088344] SMP NR_CPUS=2048 NUMA pSeries
  [  311.088349] Modules linked in: xt_CHECKSUM iptable_mangle ipt_MASQUERADE 
nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 
nf_nat nf_conntrack xt_tcpudp bridge stp llc iptable_filter ip_tables x_tables 
pseries_rng rtc_generic binfmt_misc
  [  311.088372] CPU: 14 PID: 1705 Comm: bash Not tainted 3.18.0-9-generic 
#10-Ubuntu
  [  311.088377] task: c0027773e470 ti: c002782d task.ti: 
c002782d
  [  311.088381] NIP: c05f9094 LR: c05fa12c CTR: 
c05f9060
  [  311.088385] REGS: c002782d39d0 TRAP: 0300   Not tainted  
(3.18.0-9-generic)
  [  311.088389] MSR: 80009033 SF,EE,ME,IR,DR,RI,LE  CR: 28242822  
XER: 0001
  [  311.088401] CFAR: c00084d8 DAR:  DSISR: 4200 
SOFTE: 1
  GPR00: c05fa12c c002782d3c50 c1426890 0063
  GPR04: c1b85c28 c1b965e0 00ff c15e71f0
  GPR08: c0e76890 0001  0001
  

[Kernel-packages] [Bug 1410817] Re: Kdump triggered manually after cpu offline operation fails to collect dump

2015-02-20 Thread Breno Leitão
Chris,

Is it possible to give us one or more days to test this fix? I expect to
have it validated by Monday.

-- 
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/1410817

Title:
  Kdump triggered manually after cpu offline operation fails to collect
  dump

Status in linux package in Ubuntu:
  Fix Committed
Status in linux source package in Utopic:
  Fix Committed

Bug description:
  SRU Justification:

  [Impact]
  Kdump triggered manually after cpu offline operation fails to collect dump

  [Test Case]
  See Steps to Reproduce below.

  [Fix]
  $ git describe --contains c1caae3de46a072d0855729aed6e793e536a4a55
  v3.19-rc3~1^2~1

  --

  
  ---Problem Description---
  Kdump triggered manually after cpu offline operation fails to collect dump

  ---uname output---
  Linux ubuntu 3.18.0-9-generic #10-Ubuntu SMP Mon Jan 12 21:35:28 UTC 2015 
ppc64le ppc64le ppc64le GNU/Linux

  Machine Type = P8

  ---System Hang---
  We have to reboot the LPAR and gain access to the machine again.

  ---Steps to Reproduce---
  Install a Power VM LPAR with Ubuntu 15.04 ISO using Virtual DVD.
  Then offline one of the cpu's of the machine.

  root@ubuntu:~# lscpu
  Architecture:  ppc64le
  Byte Order:Little Endian
  CPU(s):16
  On-line CPU(s) list:   0-15
  Thread(s) per core:8
  Core(s) per socket:1
  Socket(s): 2
  NUMA node(s):  2
  Model: IBM,8284-22A
  Hypervisor vendor: pHyp
  Virtualization type:   para
  L1d cache: 64K
  L1i cache: 32K
  NUMA node0 CPU(s): 0-15
  NUMA node2 CPU(s):

  root@ubuntu:~# chcpu -d 15
  CPU 15 disabled

  root@ubuntu:~# lscpu
  Architecture:  ppc64le
  Byte Order:Little Endian
  CPU(s):16
  On-line CPU(s) list:   0-14
  Off-line CPU(s) list:  15
  Thread(s) per core:7
  Core(s) per socket:1
  Socket(s): 2
  NUMA node(s):  2
  Model: IBM,8284-22A
  Hypervisor vendor: pHyp
  Virtualization type:   para
  L1d cache: 64K
  L1i cache: 32K
  NUMA node0 CPU(s): 0-14
  NUMA node2 CPU(s):

  Configure and enable kdump on the LPAR.

  root@ubuntu:~# /etc/init.d/kdump-tools status
  current state   : ready to kdump
  root@ubuntu:~# kdump-config load
  Modified cmdline:BOOT_IMAGE=/boot/vmlinux-3.18.0-9-generic 
root=UUID=70957e56-8669-466f-b0e7-140f2ec39a04 ro splash quiet irqpoll 
maxcpus=1 nousb elfcorehdr=155072K
  segment[0].mem:0x800 memsz:24510464
  segment[1].mem:0x976 memsz:65536
  segment[2].mem:0x977 memsz:65536
  segment[3].mem:0x978 memsz:65536
  segment[4].mem:0x979 memsz:22020096
  segment[5].mem:0xec7 memsz:196608
   * loaded kdump kernel
  root@ubuntu:~#

  root@ubuntu:~# kdump-config show
  USE_KDUMP:1
  KDUMP_SYSCTL: kernel.panic_on_oops=1
  KDUMP_COREDIR:/var/crash
  crashkernel addr:
  current state:ready to kdump

  kexec command:
    /sbin/kexec -p --args-linux 
--command-line=BOOT_IMAGE=/boot/vmlinux-3.18.0-9-generic 
root=UUID=70957e56-8669-466f-b0e7-140f2ec39a04 ro splash quiet irqpoll 
maxcpus=1 nousb --initrd=/boot/initrd.img-3.18.0-9-generic 
/boot/vmlinux-3.18.0-9-generic
  root@ubuntu:~# kdump-config status
  current state   : ready to kdump

  root@ubuntu:~# sysctl -w kernel.sysrq=1
  kernel.sysrq = 1
  root@ubuntu:~# cat /proc/sys/kernel/sysrq
  1

  Trigger the crash manually using sysrq-trigger.

  root@ubuntu:~# echo c  /proc/sysrq-trigger

  root@ubuntu:~# [  311.088315] SysRq : Trigger a crash
  [  311.088331] Unable to handle kernel paging request for data at address 
0x
  [  311.088336] Faulting instruction address: 0xc05f9094
  [  311.088341] Oops: Kernel access of bad area, sig: 11 [#1]
  [  311.088344] SMP NR_CPUS=2048 NUMA pSeries
  [  311.088349] Modules linked in: xt_CHECKSUM iptable_mangle ipt_MASQUERADE 
nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 
nf_nat nf_conntrack xt_tcpudp bridge stp llc iptable_filter ip_tables x_tables 
pseries_rng rtc_generic binfmt_misc
  [  311.088372] CPU: 14 PID: 1705 Comm: bash Not tainted 3.18.0-9-generic 
#10-Ubuntu
  [  311.088377] task: c0027773e470 ti: c002782d task.ti: 
c002782d
  [  311.088381] NIP: c05f9094 LR: c05fa12c CTR: 
c05f9060
  [  311.088385] REGS: c002782d39d0 TRAP: 0300   Not tainted  
(3.18.0-9-generic)
  [  311.088389] MSR: 80009033 SF,EE,ME,IR,DR,RI,LE  CR: 28242822  
XER: 0001
  [  311.088401] CFAR: c00084d8 DAR:  DSISR: 4200 
SOFTE: 1
  GPR00: c05fa12c c002782d3c50 c1426890 0063
  GPR04: c1b85c28 c1b965e0 00ff c15e71f0
  GPR08: c0e76890 0001  0001
  GPR12: c05f9060 

[Kernel-packages] [Bug 1410817] Re: Kdump triggered manually after cpu offline operation fails to collect dump

2015-02-18 Thread bugproxy
--- Comment From pavsu...@in.ibm.com 2015-02-19 05:12 EDT---
I have changed the /etc/apt/sources.list file with utopic-proposed as mentioned.

root@ubuntu:~# cat /etc/apt/sources.list | tail

## Uncomment the following two lines to add software from Ubuntu's
## 'extras' repository.
## This software is not part of Ubuntu, but is offered by third-party
## developers who want to ship their latest software.
# deb http://extras.ubuntu.com/ubuntu vivid main
# deb-src http://extras.ubuntu.com/ubuntu vivid main

#deb http://ports.ubuntu.com/ubuntu-ports vivid-proposed restricted main 
multiverse universe
deb http://ports.ubuntu.com/ubuntu-ports  utopic-proposed restricted main 
multiverse universe

root@ubuntu:~# apt-get install linux-generic/utopic-proposed
Reading package lists... Done
Building dependency tree
Reading state information... Done
Selected version '3.16.0.31.32' (Ubuntu:14.10/utopic-proposed [ppc64el]) for 
'linux-generic'
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
linux-generic : Depends: linux-image-generic (= 3.16.0.31.32) but 3.18.0.13.13 
is to be installed
Depends: linux-headers-generic (= 3.16.0.31.32) but 3.18.0.13.13 is to be 
installed
E: Unable to correct problems, you have held broken packages.

The above issue is occurring since I am trying to install the utopic-
proposed kernel images on the Ubuntu 15.04 daily build ie the vivid
kernel image.

Do you want me to test the utopic-proposed kernel installed on Ubuntu
14.10 GAed ISO.

** Tags removed: verification-needed-utopic

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https://bugs.launchpad.net/bugs/1410817

Title:
  Kdump triggered manually after cpu offline operation fails to collect
  dump

Status in linux package in Ubuntu:
  Fix Committed
Status in linux source package in Utopic:
  Fix Committed

Bug description:
  SRU Justification:

  [Impact]
  Kdump triggered manually after cpu offline operation fails to collect dump

  [Test Case]
  See Steps to Reproduce below.

  [Fix]
  $ git describe --contains c1caae3de46a072d0855729aed6e793e536a4a55
  v3.19-rc3~1^2~1

  --

  
  ---Problem Description---
  Kdump triggered manually after cpu offline operation fails to collect dump

  ---uname output---
  Linux ubuntu 3.18.0-9-generic #10-Ubuntu SMP Mon Jan 12 21:35:28 UTC 2015 
ppc64le ppc64le ppc64le GNU/Linux

  Machine Type = P8

  ---System Hang---
  We have to reboot the LPAR and gain access to the machine again.

  ---Steps to Reproduce---
  Install a Power VM LPAR with Ubuntu 15.04 ISO using Virtual DVD.
  Then offline one of the cpu's of the machine.

  root@ubuntu:~# lscpu
  Architecture:  ppc64le
  Byte Order:Little Endian
  CPU(s):16
  On-line CPU(s) list:   0-15
  Thread(s) per core:8
  Core(s) per socket:1
  Socket(s): 2
  NUMA node(s):  2
  Model: IBM,8284-22A
  Hypervisor vendor: pHyp
  Virtualization type:   para
  L1d cache: 64K
  L1i cache: 32K
  NUMA node0 CPU(s): 0-15
  NUMA node2 CPU(s):

  root@ubuntu:~# chcpu -d 15
  CPU 15 disabled

  root@ubuntu:~# lscpu
  Architecture:  ppc64le
  Byte Order:Little Endian
  CPU(s):16
  On-line CPU(s) list:   0-14
  Off-line CPU(s) list:  15
  Thread(s) per core:7
  Core(s) per socket:1
  Socket(s): 2
  NUMA node(s):  2
  Model: IBM,8284-22A
  Hypervisor vendor: pHyp
  Virtualization type:   para
  L1d cache: 64K
  L1i cache: 32K
  NUMA node0 CPU(s): 0-14
  NUMA node2 CPU(s):

  Configure and enable kdump on the LPAR.

  root@ubuntu:~# /etc/init.d/kdump-tools status
  current state   : ready to kdump
  root@ubuntu:~# kdump-config load
  Modified cmdline:BOOT_IMAGE=/boot/vmlinux-3.18.0-9-generic 
root=UUID=70957e56-8669-466f-b0e7-140f2ec39a04 ro splash quiet irqpoll 
maxcpus=1 nousb elfcorehdr=155072K
  segment[0].mem:0x800 memsz:24510464
  segment[1].mem:0x976 memsz:65536
  segment[2].mem:0x977 memsz:65536
  segment[3].mem:0x978 memsz:65536
  segment[4].mem:0x979 memsz:22020096
  segment[5].mem:0xec7 memsz:196608
   * loaded kdump kernel
  root@ubuntu:~#

  root@ubuntu:~# kdump-config show
  USE_KDUMP:1
  KDUMP_SYSCTL: kernel.panic_on_oops=1
  KDUMP_COREDIR:/var/crash
  crashkernel addr:
  current state:ready to kdump

  kexec command:
    /sbin/kexec -p --args-linux 
--command-line=BOOT_IMAGE=/boot/vmlinux-3.18.0-9-generic 
root=UUID=70957e56-8669-466f-b0e7-140f2ec39a04 ro splash quiet irqpoll 
maxcpus=1 nousb 

[Kernel-packages] [Bug 1410817] Re: Kdump triggered manually after cpu offline operation fails to collect dump

2015-02-18 Thread Chris J Arges
Yes, please install the utopic kernel on utopic. Installing the utopic
kernel in a vivid install isn't a supported configuration. Thanks

** Tags added: verification-needed-utopic

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1410817

Title:
  Kdump triggered manually after cpu offline operation fails to collect
  dump

Status in linux package in Ubuntu:
  Fix Committed
Status in linux source package in Utopic:
  Fix Committed

Bug description:
  SRU Justification:

  [Impact]
  Kdump triggered manually after cpu offline operation fails to collect dump

  [Test Case]
  See Steps to Reproduce below.

  [Fix]
  $ git describe --contains c1caae3de46a072d0855729aed6e793e536a4a55
  v3.19-rc3~1^2~1

  --

  
  ---Problem Description---
  Kdump triggered manually after cpu offline operation fails to collect dump

  ---uname output---
  Linux ubuntu 3.18.0-9-generic #10-Ubuntu SMP Mon Jan 12 21:35:28 UTC 2015 
ppc64le ppc64le ppc64le GNU/Linux

  Machine Type = P8

  ---System Hang---
  We have to reboot the LPAR and gain access to the machine again.

  ---Steps to Reproduce---
  Install a Power VM LPAR with Ubuntu 15.04 ISO using Virtual DVD.
  Then offline one of the cpu's of the machine.

  root@ubuntu:~# lscpu
  Architecture:  ppc64le
  Byte Order:Little Endian
  CPU(s):16
  On-line CPU(s) list:   0-15
  Thread(s) per core:8
  Core(s) per socket:1
  Socket(s): 2
  NUMA node(s):  2
  Model: IBM,8284-22A
  Hypervisor vendor: pHyp
  Virtualization type:   para
  L1d cache: 64K
  L1i cache: 32K
  NUMA node0 CPU(s): 0-15
  NUMA node2 CPU(s):

  root@ubuntu:~# chcpu -d 15
  CPU 15 disabled

  root@ubuntu:~# lscpu
  Architecture:  ppc64le
  Byte Order:Little Endian
  CPU(s):16
  On-line CPU(s) list:   0-14
  Off-line CPU(s) list:  15
  Thread(s) per core:7
  Core(s) per socket:1
  Socket(s): 2
  NUMA node(s):  2
  Model: IBM,8284-22A
  Hypervisor vendor: pHyp
  Virtualization type:   para
  L1d cache: 64K
  L1i cache: 32K
  NUMA node0 CPU(s): 0-14
  NUMA node2 CPU(s):

  Configure and enable kdump on the LPAR.

  root@ubuntu:~# /etc/init.d/kdump-tools status
  current state   : ready to kdump
  root@ubuntu:~# kdump-config load
  Modified cmdline:BOOT_IMAGE=/boot/vmlinux-3.18.0-9-generic 
root=UUID=70957e56-8669-466f-b0e7-140f2ec39a04 ro splash quiet irqpoll 
maxcpus=1 nousb elfcorehdr=155072K
  segment[0].mem:0x800 memsz:24510464
  segment[1].mem:0x976 memsz:65536
  segment[2].mem:0x977 memsz:65536
  segment[3].mem:0x978 memsz:65536
  segment[4].mem:0x979 memsz:22020096
  segment[5].mem:0xec7 memsz:196608
   * loaded kdump kernel
  root@ubuntu:~#

  root@ubuntu:~# kdump-config show
  USE_KDUMP:1
  KDUMP_SYSCTL: kernel.panic_on_oops=1
  KDUMP_COREDIR:/var/crash
  crashkernel addr:
  current state:ready to kdump

  kexec command:
    /sbin/kexec -p --args-linux 
--command-line=BOOT_IMAGE=/boot/vmlinux-3.18.0-9-generic 
root=UUID=70957e56-8669-466f-b0e7-140f2ec39a04 ro splash quiet irqpoll 
maxcpus=1 nousb --initrd=/boot/initrd.img-3.18.0-9-generic 
/boot/vmlinux-3.18.0-9-generic
  root@ubuntu:~# kdump-config status
  current state   : ready to kdump

  root@ubuntu:~# sysctl -w kernel.sysrq=1
  kernel.sysrq = 1
  root@ubuntu:~# cat /proc/sys/kernel/sysrq
  1

  Trigger the crash manually using sysrq-trigger.

  root@ubuntu:~# echo c  /proc/sysrq-trigger

  root@ubuntu:~# [  311.088315] SysRq : Trigger a crash
  [  311.088331] Unable to handle kernel paging request for data at address 
0x
  [  311.088336] Faulting instruction address: 0xc05f9094
  [  311.088341] Oops: Kernel access of bad area, sig: 11 [#1]
  [  311.088344] SMP NR_CPUS=2048 NUMA pSeries
  [  311.088349] Modules linked in: xt_CHECKSUM iptable_mangle ipt_MASQUERADE 
nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 
nf_nat nf_conntrack xt_tcpudp bridge stp llc iptable_filter ip_tables x_tables 
pseries_rng rtc_generic binfmt_misc
  [  311.088372] CPU: 14 PID: 1705 Comm: bash Not tainted 3.18.0-9-generic 
#10-Ubuntu
  [  311.088377] task: c0027773e470 ti: c002782d task.ti: 
c002782d
  [  311.088381] NIP: c05f9094 LR: c05fa12c CTR: 
c05f9060
  [  311.088385] REGS: c002782d39d0 TRAP: 0300   Not tainted  
(3.18.0-9-generic)
  [  311.088389] MSR: 80009033 SF,EE,ME,IR,DR,RI,LE  CR: 28242822  
XER: 0001
  [  311.088401] CFAR: c00084d8 DAR:  DSISR: 4200 
SOFTE: 1
  GPR00: c05fa12c c002782d3c50 c1426890 0063
  GPR04: c1b85c28 c1b965e0 00ff c15e71f0
  GPR08: c0e76890 0001 

[Kernel-packages] [Bug 1410817] Re: Kdump triggered manually after cpu offline operation fails to collect dump

2015-02-18 Thread Chris J Arges
Hi can you verify for utopic-proposed instead of vivid-proposed?
Thanks,

** Tags added: verification-needed-utopic

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1410817

Title:
  Kdump triggered manually after cpu offline operation fails to collect
  dump

Status in linux package in Ubuntu:
  Fix Committed
Status in linux source package in Utopic:
  Fix Committed

Bug description:
  SRU Justification:

  [Impact]
  Kdump triggered manually after cpu offline operation fails to collect dump

  [Test Case]
  See Steps to Reproduce below.

  [Fix]
  $ git describe --contains c1caae3de46a072d0855729aed6e793e536a4a55
  v3.19-rc3~1^2~1

  --

  
  ---Problem Description---
  Kdump triggered manually after cpu offline operation fails to collect dump

  ---uname output---
  Linux ubuntu 3.18.0-9-generic #10-Ubuntu SMP Mon Jan 12 21:35:28 UTC 2015 
ppc64le ppc64le ppc64le GNU/Linux

  Machine Type = P8

  ---System Hang---
  We have to reboot the LPAR and gain access to the machine again.

  ---Steps to Reproduce---
  Install a Power VM LPAR with Ubuntu 15.04 ISO using Virtual DVD.
  Then offline one of the cpu's of the machine.

  root@ubuntu:~# lscpu
  Architecture:  ppc64le
  Byte Order:Little Endian
  CPU(s):16
  On-line CPU(s) list:   0-15
  Thread(s) per core:8
  Core(s) per socket:1
  Socket(s): 2
  NUMA node(s):  2
  Model: IBM,8284-22A
  Hypervisor vendor: pHyp
  Virtualization type:   para
  L1d cache: 64K
  L1i cache: 32K
  NUMA node0 CPU(s): 0-15
  NUMA node2 CPU(s):

  root@ubuntu:~# chcpu -d 15
  CPU 15 disabled

  root@ubuntu:~# lscpu
  Architecture:  ppc64le
  Byte Order:Little Endian
  CPU(s):16
  On-line CPU(s) list:   0-14
  Off-line CPU(s) list:  15
  Thread(s) per core:7
  Core(s) per socket:1
  Socket(s): 2
  NUMA node(s):  2
  Model: IBM,8284-22A
  Hypervisor vendor: pHyp
  Virtualization type:   para
  L1d cache: 64K
  L1i cache: 32K
  NUMA node0 CPU(s): 0-14
  NUMA node2 CPU(s):

  Configure and enable kdump on the LPAR.

  root@ubuntu:~# /etc/init.d/kdump-tools status
  current state   : ready to kdump
  root@ubuntu:~# kdump-config load
  Modified cmdline:BOOT_IMAGE=/boot/vmlinux-3.18.0-9-generic 
root=UUID=70957e56-8669-466f-b0e7-140f2ec39a04 ro splash quiet irqpoll 
maxcpus=1 nousb elfcorehdr=155072K
  segment[0].mem:0x800 memsz:24510464
  segment[1].mem:0x976 memsz:65536
  segment[2].mem:0x977 memsz:65536
  segment[3].mem:0x978 memsz:65536
  segment[4].mem:0x979 memsz:22020096
  segment[5].mem:0xec7 memsz:196608
   * loaded kdump kernel
  root@ubuntu:~#

  root@ubuntu:~# kdump-config show
  USE_KDUMP:1
  KDUMP_SYSCTL: kernel.panic_on_oops=1
  KDUMP_COREDIR:/var/crash
  crashkernel addr:
  current state:ready to kdump

  kexec command:
    /sbin/kexec -p --args-linux 
--command-line=BOOT_IMAGE=/boot/vmlinux-3.18.0-9-generic 
root=UUID=70957e56-8669-466f-b0e7-140f2ec39a04 ro splash quiet irqpoll 
maxcpus=1 nousb --initrd=/boot/initrd.img-3.18.0-9-generic 
/boot/vmlinux-3.18.0-9-generic
  root@ubuntu:~# kdump-config status
  current state   : ready to kdump

  root@ubuntu:~# sysctl -w kernel.sysrq=1
  kernel.sysrq = 1
  root@ubuntu:~# cat /proc/sys/kernel/sysrq
  1

  Trigger the crash manually using sysrq-trigger.

  root@ubuntu:~# echo c  /proc/sysrq-trigger

  root@ubuntu:~# [  311.088315] SysRq : Trigger a crash
  [  311.088331] Unable to handle kernel paging request for data at address 
0x
  [  311.088336] Faulting instruction address: 0xc05f9094
  [  311.088341] Oops: Kernel access of bad area, sig: 11 [#1]
  [  311.088344] SMP NR_CPUS=2048 NUMA pSeries
  [  311.088349] Modules linked in: xt_CHECKSUM iptable_mangle ipt_MASQUERADE 
nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 
nf_nat nf_conntrack xt_tcpudp bridge stp llc iptable_filter ip_tables x_tables 
pseries_rng rtc_generic binfmt_misc
  [  311.088372] CPU: 14 PID: 1705 Comm: bash Not tainted 3.18.0-9-generic 
#10-Ubuntu
  [  311.088377] task: c0027773e470 ti: c002782d task.ti: 
c002782d
  [  311.088381] NIP: c05f9094 LR: c05fa12c CTR: 
c05f9060
  [  311.088385] REGS: c002782d39d0 TRAP: 0300   Not tainted  
(3.18.0-9-generic)
  [  311.088389] MSR: 80009033 SF,EE,ME,IR,DR,RI,LE  CR: 28242822  
XER: 0001
  [  311.088401] CFAR: c00084d8 DAR:  DSISR: 4200 
SOFTE: 1
  GPR00: c05fa12c c002782d3c50 c1426890 0063
  GPR04: c1b85c28 c1b965e0 00ff c15e71f0
  GPR08: c0e76890 0001  0001
  GPR12: c05f9060 

[Kernel-packages] [Bug 1410817] Re: Kdump triggered manually after cpu offline operation fails to collect dump

2015-02-15 Thread bugproxy
--- Comment From pavsu...@in.ibm.com 2015-02-16 07:18 EDT---
I have followed the steps provided in the link:
https://wiki.ubuntu.com/Testing/EnableProposed

root@ubuntu:~# cat /etc/apt/sources.list | tail
# deb-src http://archive.canonical.com/ubuntu vivid partner

## Uncomment the following two lines to add software from Ubuntu's
## 'extras' repository.
## This software is not part of Ubuntu, but is offered by third-party
## developers who want to ship their latest software.
# deb http://extras.ubuntu.com/ubuntu vivid main
# deb-src http://extras.ubuntu.com/ubuntu vivid main

deb http://ports.ubuntu.com/ubuntu-ports vivid-proposed restricted main
multiverse universe

root@ubuntu:~# cat /etc/apt/preferences.d/proposed-updates
Package: *
Pin: release a=vivid-proposed
Pin-Priority: 400

root@ubuntu:~# apt-get update

root@ubuntu:~# apt-get install linux-generic/vivid-proposed
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Release 'vivid-proposed' for 'linux-generic' was not found

root@ubuntu:~# apt-get install linux-image-*/vivid-propsed
Reading package lists... Done
Building dependency tree
Reading state information... Done
Note, selecting 'linux-image-3.18.0-11-generic' for regex 'linux-image-*'
Note, selecting 'linux-image-extra-3.18.0-9-generic' for regex 'linux-image-*'
Note, selecting 'linux-image-3.18.0-9-generic' for regex 'linux-image-*'
Note, selecting 'linux-image-3.18.0-8-generic-dbgsym' for regex 'linux-image-*'
Note, selecting 'linux-image' for regex 'linux-image-*'
Note, selecting 'linux-image-virtual' for regex 'linux-image-*'
Note, selecting 'linux-image-3.18.0-11-generic-dbgsym' for regex 'linux-image-*'
Note, selecting 'linux-image-3.0' for regex 'linux-image-*'
Note, selecting 'linux-image-extra-3.18.0-12-generic' for regex 'linux-image-*'
Note, selecting 'linux-image-3.18.0-12-generic' for regex 'linux-image-*'
Note, selecting 'linux-image-extra-3.18.0-8-generic' for regex 'linux-image-*'
Note, selecting 'linux-image-3.18.0-8-generic' for regex 'linux-image-*'
Note, selecting 'linux-image-2.6-rt' for regex 'linux-image-*'
Note, selecting 'linux-image-extra-3.18.0-13-generic' for regex 'linux-image-*'
Note, selecting 'linux-image-3.18.0-13-generic' for regex 'linux-image-*'
Note, selecting 'linux-image-generic' for regex 'linux-image-*'
Note, selecting 'linux-image-extra-3.18.0-11-generic' for regex 'linux-image-*'
E: Release 'vivid-propsed' for 'linux-image' was not found
E: Release 'vivid-propsed' for 'linux-image-generic' was not found
E: Release 'vivid-propsed' for 'linux-image-3.18.0-13-generic' was not found
E: Release 'vivid-propsed' for 'linux-image-3.0' was not found
E: Release 'vivid-propsed' for 'linux-image-extra-3.18.0-13-generic' was not 
found
E: Release 'vivid-propsed' for 'linux-image-virtual' was not found
E: Release 'vivid-propsed' for 'linux-image-2.6-rt' was not found
E: Release 'vivid-propsed' for 'linux-image-3.18.0-9-generic' was not found
E: Release 'vivid-propsed' for 'linux-image-3.18.0-8-generic-dbgsym' was not 
found
E: Release 'vivid-propsed' for 'linux-image-3.18.0-11-generic-dbgsym' was not 
found
E: Release 'vivid-propsed' for 'linux-image-3.18.0-11-generic' was not found
E: Release 'vivid-propsed' for 'linux-image-extra-3.18.0-8-generic' was not 
found
E: Release 'vivid-propsed' for 'linux-image-3.18.0-8-generic' was not found
E: Release 'vivid-propsed' for 'linux-image-extra-3.18.0-12-generic' was not 
found
E: Release 'vivid-propsed' for 'linux-image-3.18.0-12-generic' was not found
E: Release 'vivid-propsed' for 'linux-image-extra-3.18.0-9-generic' was not 
found
E: Release 'vivid-propsed' for 'linux-image-extra-3.18.0-11-generic' was not 
found

Not able to find the kernel linux-image available in vivid-proposed.

Please let me know if I need to follow any other steps in order to
install proposed kernel.

** Tags removed: verification-needed-utopic

-- 
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/1410817

Title:
  Kdump triggered manually after cpu offline operation fails to collect
  dump

Status in linux package in Ubuntu:
  Fix Committed
Status in linux source package in Utopic:
  Fix Committed

Bug description:
  SRU Justification:

  [Impact]
  Kdump triggered manually after cpu offline operation fails to collect dump

  [Test Case]
  See Steps to Reproduce below.

  [Fix]
  $ git describe --contains c1caae3de46a072d0855729aed6e793e536a4a55
  v3.19-rc3~1^2~1

  --

  
  ---Problem Description---
  Kdump triggered manually after cpu offline operation fails to collect dump

  ---uname output---
  Linux ubuntu 3.18.0-9-generic #10-Ubuntu SMP Mon Jan 12 21:35:28 UTC 2015 
ppc64le ppc64le ppc64le GNU/Linux

  Machine Type = P8

  ---System Hang---
  We have to reboot the LPAR and gain access to the machine again.

  ---Steps to Reproduce---
  Install a Power VM LPAR with Ubuntu 15.04 ISO 

[Kernel-packages] [Bug 1410817] Re: Kdump triggered manually after cpu offline operation fails to collect dump

2015-02-13 Thread Brad Figg
This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
utopic' to 'verification-done-utopic'.

If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: verification-needed-utopic

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1410817

Title:
  Kdump triggered manually after cpu offline operation fails to collect
  dump

Status in linux package in Ubuntu:
  Fix Committed
Status in linux source package in Utopic:
  Fix Committed

Bug description:
  SRU Justification:

  [Impact]
  Kdump triggered manually after cpu offline operation fails to collect dump

  [Test Case]
  See Steps to Reproduce below.

  [Fix]
  $ git describe --contains c1caae3de46a072d0855729aed6e793e536a4a55
  v3.19-rc3~1^2~1

  --

  
  ---Problem Description---
  Kdump triggered manually after cpu offline operation fails to collect dump

  ---uname output---
  Linux ubuntu 3.18.0-9-generic #10-Ubuntu SMP Mon Jan 12 21:35:28 UTC 2015 
ppc64le ppc64le ppc64le GNU/Linux

  Machine Type = P8

  ---System Hang---
  We have to reboot the LPAR and gain access to the machine again.

  ---Steps to Reproduce---
  Install a Power VM LPAR with Ubuntu 15.04 ISO using Virtual DVD.
  Then offline one of the cpu's of the machine.

  root@ubuntu:~# lscpu
  Architecture:  ppc64le
  Byte Order:Little Endian
  CPU(s):16
  On-line CPU(s) list:   0-15
  Thread(s) per core:8
  Core(s) per socket:1
  Socket(s): 2
  NUMA node(s):  2
  Model: IBM,8284-22A
  Hypervisor vendor: pHyp
  Virtualization type:   para
  L1d cache: 64K
  L1i cache: 32K
  NUMA node0 CPU(s): 0-15
  NUMA node2 CPU(s):

  root@ubuntu:~# chcpu -d 15
  CPU 15 disabled

  root@ubuntu:~# lscpu
  Architecture:  ppc64le
  Byte Order:Little Endian
  CPU(s):16
  On-line CPU(s) list:   0-14
  Off-line CPU(s) list:  15
  Thread(s) per core:7
  Core(s) per socket:1
  Socket(s): 2
  NUMA node(s):  2
  Model: IBM,8284-22A
  Hypervisor vendor: pHyp
  Virtualization type:   para
  L1d cache: 64K
  L1i cache: 32K
  NUMA node0 CPU(s): 0-14
  NUMA node2 CPU(s):

  Configure and enable kdump on the LPAR.

  root@ubuntu:~# /etc/init.d/kdump-tools status
  current state   : ready to kdump
  root@ubuntu:~# kdump-config load
  Modified cmdline:BOOT_IMAGE=/boot/vmlinux-3.18.0-9-generic 
root=UUID=70957e56-8669-466f-b0e7-140f2ec39a04 ro splash quiet irqpoll 
maxcpus=1 nousb elfcorehdr=155072K
  segment[0].mem:0x800 memsz:24510464
  segment[1].mem:0x976 memsz:65536
  segment[2].mem:0x977 memsz:65536
  segment[3].mem:0x978 memsz:65536
  segment[4].mem:0x979 memsz:22020096
  segment[5].mem:0xec7 memsz:196608
   * loaded kdump kernel
  root@ubuntu:~#

  root@ubuntu:~# kdump-config show
  USE_KDUMP:1
  KDUMP_SYSCTL: kernel.panic_on_oops=1
  KDUMP_COREDIR:/var/crash
  crashkernel addr:
  current state:ready to kdump

  kexec command:
    /sbin/kexec -p --args-linux 
--command-line=BOOT_IMAGE=/boot/vmlinux-3.18.0-9-generic 
root=UUID=70957e56-8669-466f-b0e7-140f2ec39a04 ro splash quiet irqpoll 
maxcpus=1 nousb --initrd=/boot/initrd.img-3.18.0-9-generic 
/boot/vmlinux-3.18.0-9-generic
  root@ubuntu:~# kdump-config status
  current state   : ready to kdump

  root@ubuntu:~# sysctl -w kernel.sysrq=1
  kernel.sysrq = 1
  root@ubuntu:~# cat /proc/sys/kernel/sysrq
  1

  Trigger the crash manually using sysrq-trigger.

  root@ubuntu:~# echo c  /proc/sysrq-trigger

  root@ubuntu:~# [  311.088315] SysRq : Trigger a crash
  [  311.088331] Unable to handle kernel paging request for data at address 
0x
  [  311.088336] Faulting instruction address: 0xc05f9094
  [  311.088341] Oops: Kernel access of bad area, sig: 11 [#1]
  [  311.088344] SMP NR_CPUS=2048 NUMA pSeries
  [  311.088349] Modules linked in: xt_CHECKSUM iptable_mangle ipt_MASQUERADE 
nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 
nf_nat nf_conntrack xt_tcpudp bridge stp llc iptable_filter ip_tables x_tables 
pseries_rng rtc_generic binfmt_misc
  [  311.088372] CPU: 14 PID: 1705 Comm: bash Not tainted 3.18.0-9-generic 
#10-Ubuntu
  [  311.088377] task: c0027773e470 ti: c002782d task.ti: 
c002782d
  [  311.088381] NIP: c05f9094 LR: c05fa12c CTR: 
c05f9060
  [  311.088385] REGS: c002782d39d0 TRAP: 0300   Not tainted  
(3.18.0-9-generic)
  [  311.088389] 

[Kernel-packages] [Bug 1410817] Re: Kdump triggered manually after cpu offline operation fails to collect dump

2015-02-02 Thread Chris J Arges
** Changed in: linux (Ubuntu)
   Importance: Undecided = Medium

-- 
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/1410817

Title:
  Kdump triggered manually after cpu offline operation fails to collect
  dump

Status in linux package in Ubuntu:
  Fix Committed
Status in linux source package in Utopic:
  Fix Committed

Bug description:
  SRU Justification:

  [Impact]
  Kdump triggered manually after cpu offline operation fails to collect dump

  [Test Case]
  See Steps to Reproduce below.

  [Fix]
  $ git describe --contains c1caae3de46a072d0855729aed6e793e536a4a55
  v3.19-rc3~1^2~1

  --

  
  ---Problem Description---
  Kdump triggered manually after cpu offline operation fails to collect dump

  ---uname output---
  Linux ubuntu 3.18.0-9-generic #10-Ubuntu SMP Mon Jan 12 21:35:28 UTC 2015 
ppc64le ppc64le ppc64le GNU/Linux

  Machine Type = P8

  ---System Hang---
  We have to reboot the LPAR and gain access to the machine again.

  ---Steps to Reproduce---
  Install a Power VM LPAR with Ubuntu 15.04 ISO using Virtual DVD.
  Then offline one of the cpu's of the machine.

  root@ubuntu:~# lscpu
  Architecture:  ppc64le
  Byte Order:Little Endian
  CPU(s):16
  On-line CPU(s) list:   0-15
  Thread(s) per core:8
  Core(s) per socket:1
  Socket(s): 2
  NUMA node(s):  2
  Model: IBM,8284-22A
  Hypervisor vendor: pHyp
  Virtualization type:   para
  L1d cache: 64K
  L1i cache: 32K
  NUMA node0 CPU(s): 0-15
  NUMA node2 CPU(s):

  root@ubuntu:~# chcpu -d 15
  CPU 15 disabled

  root@ubuntu:~# lscpu
  Architecture:  ppc64le
  Byte Order:Little Endian
  CPU(s):16
  On-line CPU(s) list:   0-14
  Off-line CPU(s) list:  15
  Thread(s) per core:7
  Core(s) per socket:1
  Socket(s): 2
  NUMA node(s):  2
  Model: IBM,8284-22A
  Hypervisor vendor: pHyp
  Virtualization type:   para
  L1d cache: 64K
  L1i cache: 32K
  NUMA node0 CPU(s): 0-14
  NUMA node2 CPU(s):

  Configure and enable kdump on the LPAR.

  root@ubuntu:~# /etc/init.d/kdump-tools status
  current state   : ready to kdump
  root@ubuntu:~# kdump-config load
  Modified cmdline:BOOT_IMAGE=/boot/vmlinux-3.18.0-9-generic 
root=UUID=70957e56-8669-466f-b0e7-140f2ec39a04 ro splash quiet irqpoll 
maxcpus=1 nousb elfcorehdr=155072K
  segment[0].mem:0x800 memsz:24510464
  segment[1].mem:0x976 memsz:65536
  segment[2].mem:0x977 memsz:65536
  segment[3].mem:0x978 memsz:65536
  segment[4].mem:0x979 memsz:22020096
  segment[5].mem:0xec7 memsz:196608
   * loaded kdump kernel
  root@ubuntu:~#

  root@ubuntu:~# kdump-config show
  USE_KDUMP:1
  KDUMP_SYSCTL: kernel.panic_on_oops=1
  KDUMP_COREDIR:/var/crash
  crashkernel addr:
  current state:ready to kdump

  kexec command:
    /sbin/kexec -p --args-linux 
--command-line=BOOT_IMAGE=/boot/vmlinux-3.18.0-9-generic 
root=UUID=70957e56-8669-466f-b0e7-140f2ec39a04 ro splash quiet irqpoll 
maxcpus=1 nousb --initrd=/boot/initrd.img-3.18.0-9-generic 
/boot/vmlinux-3.18.0-9-generic
  root@ubuntu:~# kdump-config status
  current state   : ready to kdump

  root@ubuntu:~# sysctl -w kernel.sysrq=1
  kernel.sysrq = 1
  root@ubuntu:~# cat /proc/sys/kernel/sysrq
  1

  Trigger the crash manually using sysrq-trigger.

  root@ubuntu:~# echo c  /proc/sysrq-trigger

  root@ubuntu:~# [  311.088315] SysRq : Trigger a crash
  [  311.088331] Unable to handle kernel paging request for data at address 
0x
  [  311.088336] Faulting instruction address: 0xc05f9094
  [  311.088341] Oops: Kernel access of bad area, sig: 11 [#1]
  [  311.088344] SMP NR_CPUS=2048 NUMA pSeries
  [  311.088349] Modules linked in: xt_CHECKSUM iptable_mangle ipt_MASQUERADE 
nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 
nf_nat nf_conntrack xt_tcpudp bridge stp llc iptable_filter ip_tables x_tables 
pseries_rng rtc_generic binfmt_misc
  [  311.088372] CPU: 14 PID: 1705 Comm: bash Not tainted 3.18.0-9-generic 
#10-Ubuntu
  [  311.088377] task: c0027773e470 ti: c002782d task.ti: 
c002782d
  [  311.088381] NIP: c05f9094 LR: c05fa12c CTR: 
c05f9060
  [  311.088385] REGS: c002782d39d0 TRAP: 0300   Not tainted  
(3.18.0-9-generic)
  [  311.088389] MSR: 80009033 SF,EE,ME,IR,DR,RI,LE  CR: 28242822  
XER: 0001
  [  311.088401] CFAR: c00084d8 DAR:  DSISR: 4200 
SOFTE: 1
  GPR00: c05fa12c c002782d3c50 c1426890 0063
  GPR04: c1b85c28 c1b965e0 00ff c15e71f0
  GPR08: c0e76890 0001  0001
  GPR12: c05f9060 c7b37e00  2200
  GPR16: 

[Kernel-packages] [Bug 1410817] Re: Kdump triggered manually after cpu offline operation fails to collect dump

2015-01-16 Thread Chris J Arges
** Changed in: linux (Ubuntu)
   Status: Triaged = Fix Committed

-- 
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/1410817

Title:
  Kdump triggered manually after cpu offline operation fails to collect
  dump

Status in linux package in Ubuntu:
  Fix Committed
Status in linux source package in Utopic:
  Fix Committed

Bug description:
  SRU Justification:

  [Impact]
  Kdump triggered manually after cpu offline operation fails to collect dump

  [Test Case]
  See Steps to Reproduce below.

  [Fix]
  $ git describe --contains c1caae3de46a072d0855729aed6e793e536a4a55
  v3.19-rc3~1^2~1

  --

  
  ---Problem Description---
  Kdump triggered manually after cpu offline operation fails to collect dump

  ---uname output---
  Linux ubuntu 3.18.0-9-generic #10-Ubuntu SMP Mon Jan 12 21:35:28 UTC 2015 
ppc64le ppc64le ppc64le GNU/Linux

  Machine Type = P8

  ---System Hang---
  We have to reboot the LPAR and gain access to the machine again.

  ---Steps to Reproduce---
  Install a Power VM LPAR with Ubuntu 15.04 ISO using Virtual DVD.
  Then offline one of the cpu's of the machine.

  root@ubuntu:~# lscpu
  Architecture:  ppc64le
  Byte Order:Little Endian
  CPU(s):16
  On-line CPU(s) list:   0-15
  Thread(s) per core:8
  Core(s) per socket:1
  Socket(s): 2
  NUMA node(s):  2
  Model: IBM,8284-22A
  Hypervisor vendor: pHyp
  Virtualization type:   para
  L1d cache: 64K
  L1i cache: 32K
  NUMA node0 CPU(s): 0-15
  NUMA node2 CPU(s):

  root@ubuntu:~# chcpu -d 15
  CPU 15 disabled

  root@ubuntu:~# lscpu
  Architecture:  ppc64le
  Byte Order:Little Endian
  CPU(s):16
  On-line CPU(s) list:   0-14
  Off-line CPU(s) list:  15
  Thread(s) per core:7
  Core(s) per socket:1
  Socket(s): 2
  NUMA node(s):  2
  Model: IBM,8284-22A
  Hypervisor vendor: pHyp
  Virtualization type:   para
  L1d cache: 64K
  L1i cache: 32K
  NUMA node0 CPU(s): 0-14
  NUMA node2 CPU(s):

  Configure and enable kdump on the LPAR.

  root@ubuntu:~# /etc/init.d/kdump-tools status
  current state   : ready to kdump
  root@ubuntu:~# kdump-config load
  Modified cmdline:BOOT_IMAGE=/boot/vmlinux-3.18.0-9-generic 
root=UUID=70957e56-8669-466f-b0e7-140f2ec39a04 ro splash quiet irqpoll 
maxcpus=1 nousb elfcorehdr=155072K
  segment[0].mem:0x800 memsz:24510464
  segment[1].mem:0x976 memsz:65536
  segment[2].mem:0x977 memsz:65536
  segment[3].mem:0x978 memsz:65536
  segment[4].mem:0x979 memsz:22020096
  segment[5].mem:0xec7 memsz:196608
   * loaded kdump kernel
  root@ubuntu:~#

  root@ubuntu:~# kdump-config show
  USE_KDUMP:1
  KDUMP_SYSCTL: kernel.panic_on_oops=1
  KDUMP_COREDIR:/var/crash
  crashkernel addr:
  current state:ready to kdump

  kexec command:
    /sbin/kexec -p --args-linux 
--command-line=BOOT_IMAGE=/boot/vmlinux-3.18.0-9-generic 
root=UUID=70957e56-8669-466f-b0e7-140f2ec39a04 ro splash quiet irqpoll 
maxcpus=1 nousb --initrd=/boot/initrd.img-3.18.0-9-generic 
/boot/vmlinux-3.18.0-9-generic
  root@ubuntu:~# kdump-config status
  current state   : ready to kdump

  root@ubuntu:~# sysctl -w kernel.sysrq=1
  kernel.sysrq = 1
  root@ubuntu:~# cat /proc/sys/kernel/sysrq
  1

  Trigger the crash manually using sysrq-trigger.

  root@ubuntu:~# echo c  /proc/sysrq-trigger

  root@ubuntu:~# [  311.088315] SysRq : Trigger a crash
  [  311.088331] Unable to handle kernel paging request for data at address 
0x
  [  311.088336] Faulting instruction address: 0xc05f9094
  [  311.088341] Oops: Kernel access of bad area, sig: 11 [#1]
  [  311.088344] SMP NR_CPUS=2048 NUMA pSeries
  [  311.088349] Modules linked in: xt_CHECKSUM iptable_mangle ipt_MASQUERADE 
nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 
nf_nat nf_conntrack xt_tcpudp bridge stp llc iptable_filter ip_tables x_tables 
pseries_rng rtc_generic binfmt_misc
  [  311.088372] CPU: 14 PID: 1705 Comm: bash Not tainted 3.18.0-9-generic 
#10-Ubuntu
  [  311.088377] task: c0027773e470 ti: c002782d task.ti: 
c002782d
  [  311.088381] NIP: c05f9094 LR: c05fa12c CTR: 
c05f9060
  [  311.088385] REGS: c002782d39d0 TRAP: 0300   Not tainted  
(3.18.0-9-generic)
  [  311.088389] MSR: 80009033 SF,EE,ME,IR,DR,RI,LE  CR: 28242822  
XER: 0001
  [  311.088401] CFAR: c00084d8 DAR:  DSISR: 4200 
SOFTE: 1
  GPR00: c05fa12c c002782d3c50 c1426890 0063
  GPR04: c1b85c28 c1b965e0 00ff c15e71f0
  GPR08: c0e76890 0001  0001
  GPR12: c05f9060 c7b37e00  2200
  

[Kernel-packages] [Bug 1410817] Re: Kdump triggered manually after cpu offline operation fails to collect dump

2015-01-15 Thread Brad Figg
** Changed in: linux (Ubuntu Utopic)
   Status: In Progress = Fix Committed

-- 
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/1410817

Title:
  Kdump triggered manually after cpu offline operation fails to collect
  dump

Status in linux package in Ubuntu:
  Triaged
Status in linux source package in Utopic:
  Fix Committed

Bug description:
  SRU Justification:

  [Impact]
  Kdump triggered manually after cpu offline operation fails to collect dump

  [Test Case]
  See Steps to Reproduce below.

  [Fix]
  $ git describe --contains c1caae3de46a072d0855729aed6e793e536a4a55
  v3.19-rc3~1^2~1

  --

  
  ---Problem Description---
  Kdump triggered manually after cpu offline operation fails to collect dump

  ---uname output---
  Linux ubuntu 3.18.0-9-generic #10-Ubuntu SMP Mon Jan 12 21:35:28 UTC 2015 
ppc64le ppc64le ppc64le GNU/Linux

  Machine Type = P8

  ---System Hang---
  We have to reboot the LPAR and gain access to the machine again.

  ---Steps to Reproduce---
  Install a Power VM LPAR with Ubuntu 15.04 ISO using Virtual DVD.
  Then offline one of the cpu's of the machine.

  root@ubuntu:~# lscpu
  Architecture:  ppc64le
  Byte Order:Little Endian
  CPU(s):16
  On-line CPU(s) list:   0-15
  Thread(s) per core:8
  Core(s) per socket:1
  Socket(s): 2
  NUMA node(s):  2
  Model: IBM,8284-22A
  Hypervisor vendor: pHyp
  Virtualization type:   para
  L1d cache: 64K
  L1i cache: 32K
  NUMA node0 CPU(s): 0-15
  NUMA node2 CPU(s):

  root@ubuntu:~# chcpu -d 15
  CPU 15 disabled

  root@ubuntu:~# lscpu
  Architecture:  ppc64le
  Byte Order:Little Endian
  CPU(s):16
  On-line CPU(s) list:   0-14
  Off-line CPU(s) list:  15
  Thread(s) per core:7
  Core(s) per socket:1
  Socket(s): 2
  NUMA node(s):  2
  Model: IBM,8284-22A
  Hypervisor vendor: pHyp
  Virtualization type:   para
  L1d cache: 64K
  L1i cache: 32K
  NUMA node0 CPU(s): 0-14
  NUMA node2 CPU(s):

  Configure and enable kdump on the LPAR.

  root@ubuntu:~# /etc/init.d/kdump-tools status
  current state   : ready to kdump
  root@ubuntu:~# kdump-config load
  Modified cmdline:BOOT_IMAGE=/boot/vmlinux-3.18.0-9-generic 
root=UUID=70957e56-8669-466f-b0e7-140f2ec39a04 ro splash quiet irqpoll 
maxcpus=1 nousb elfcorehdr=155072K
  segment[0].mem:0x800 memsz:24510464
  segment[1].mem:0x976 memsz:65536
  segment[2].mem:0x977 memsz:65536
  segment[3].mem:0x978 memsz:65536
  segment[4].mem:0x979 memsz:22020096
  segment[5].mem:0xec7 memsz:196608
   * loaded kdump kernel
  root@ubuntu:~#

  root@ubuntu:~# kdump-config show
  USE_KDUMP:1
  KDUMP_SYSCTL: kernel.panic_on_oops=1
  KDUMP_COREDIR:/var/crash
  crashkernel addr:
  current state:ready to kdump

  kexec command:
    /sbin/kexec -p --args-linux 
--command-line=BOOT_IMAGE=/boot/vmlinux-3.18.0-9-generic 
root=UUID=70957e56-8669-466f-b0e7-140f2ec39a04 ro splash quiet irqpoll 
maxcpus=1 nousb --initrd=/boot/initrd.img-3.18.0-9-generic 
/boot/vmlinux-3.18.0-9-generic
  root@ubuntu:~# kdump-config status
  current state   : ready to kdump

  root@ubuntu:~# sysctl -w kernel.sysrq=1
  kernel.sysrq = 1
  root@ubuntu:~# cat /proc/sys/kernel/sysrq
  1

  Trigger the crash manually using sysrq-trigger.

  root@ubuntu:~# echo c  /proc/sysrq-trigger

  root@ubuntu:~# [  311.088315] SysRq : Trigger a crash
  [  311.088331] Unable to handle kernel paging request for data at address 
0x
  [  311.088336] Faulting instruction address: 0xc05f9094
  [  311.088341] Oops: Kernel access of bad area, sig: 11 [#1]
  [  311.088344] SMP NR_CPUS=2048 NUMA pSeries
  [  311.088349] Modules linked in: xt_CHECKSUM iptable_mangle ipt_MASQUERADE 
nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 
nf_nat nf_conntrack xt_tcpudp bridge stp llc iptable_filter ip_tables x_tables 
pseries_rng rtc_generic binfmt_misc
  [  311.088372] CPU: 14 PID: 1705 Comm: bash Not tainted 3.18.0-9-generic 
#10-Ubuntu
  [  311.088377] task: c0027773e470 ti: c002782d task.ti: 
c002782d
  [  311.088381] NIP: c05f9094 LR: c05fa12c CTR: 
c05f9060
  [  311.088385] REGS: c002782d39d0 TRAP: 0300   Not tainted  
(3.18.0-9-generic)
  [  311.088389] MSR: 80009033 SF,EE,ME,IR,DR,RI,LE  CR: 28242822  
XER: 0001
  [  311.088401] CFAR: c00084d8 DAR:  DSISR: 4200 
SOFTE: 1
  GPR00: c05fa12c c002782d3c50 c1426890 0063
  GPR04: c1b85c28 c1b965e0 00ff c15e71f0
  GPR08: c0e76890 0001  0001
  GPR12: c05f9060 c7b37e00  

[Kernel-packages] [Bug 1410817] Re: Kdump triggered manually after cpu offline operation fails to collect dump

2015-01-14 Thread Chris J Arges
** Changed in: linux (Ubuntu)
   Status: New = 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/1410817

Title:
  Kdump triggered manually after cpu offline operation fails to collect
  dump

Status in linux package in Ubuntu:
  Triaged
Status in linux source package in Utopic:
  In Progress

Bug description:
  SRU Justification:

  [Impact]
  Kdump triggered manually after cpu offline operation fails to collect dump

  [Test Case]
  See Steps to Reproduce below.

  [Fix]
  $ git describe --contains c1caae3de46a072d0855729aed6e793e536a4a55
  v3.19-rc3~1^2~1

  --

  
  ---Problem Description---
  Kdump triggered manually after cpu offline operation fails to collect dump

  ---uname output---
  Linux ubuntu 3.18.0-9-generic #10-Ubuntu SMP Mon Jan 12 21:35:28 UTC 2015 
ppc64le ppc64le ppc64le GNU/Linux

  Machine Type = P8

  ---System Hang---
  We have to reboot the LPAR and gain access to the machine again.

  ---Steps to Reproduce---
  Install a Power VM LPAR with Ubuntu 15.04 ISO using Virtual DVD.
  Then offline one of the cpu's of the machine.

  root@ubuntu:~# lscpu
  Architecture:  ppc64le
  Byte Order:Little Endian
  CPU(s):16
  On-line CPU(s) list:   0-15
  Thread(s) per core:8
  Core(s) per socket:1
  Socket(s): 2
  NUMA node(s):  2
  Model: IBM,8284-22A
  Hypervisor vendor: pHyp
  Virtualization type:   para
  L1d cache: 64K
  L1i cache: 32K
  NUMA node0 CPU(s): 0-15
  NUMA node2 CPU(s):

  root@ubuntu:~# chcpu -d 15
  CPU 15 disabled

  root@ubuntu:~# lscpu
  Architecture:  ppc64le
  Byte Order:Little Endian
  CPU(s):16
  On-line CPU(s) list:   0-14
  Off-line CPU(s) list:  15
  Thread(s) per core:7
  Core(s) per socket:1
  Socket(s): 2
  NUMA node(s):  2
  Model: IBM,8284-22A
  Hypervisor vendor: pHyp
  Virtualization type:   para
  L1d cache: 64K
  L1i cache: 32K
  NUMA node0 CPU(s): 0-14
  NUMA node2 CPU(s):

  Configure and enable kdump on the LPAR.

  root@ubuntu:~# /etc/init.d/kdump-tools status
  current state   : ready to kdump
  root@ubuntu:~# kdump-config load
  Modified cmdline:BOOT_IMAGE=/boot/vmlinux-3.18.0-9-generic 
root=UUID=70957e56-8669-466f-b0e7-140f2ec39a04 ro splash quiet irqpoll 
maxcpus=1 nousb elfcorehdr=155072K
  segment[0].mem:0x800 memsz:24510464
  segment[1].mem:0x976 memsz:65536
  segment[2].mem:0x977 memsz:65536
  segment[3].mem:0x978 memsz:65536
  segment[4].mem:0x979 memsz:22020096
  segment[5].mem:0xec7 memsz:196608
   * loaded kdump kernel
  root@ubuntu:~#

  root@ubuntu:~# kdump-config show
  USE_KDUMP:1
  KDUMP_SYSCTL: kernel.panic_on_oops=1
  KDUMP_COREDIR:/var/crash
  crashkernel addr:
  current state:ready to kdump

  kexec command:
    /sbin/kexec -p --args-linux 
--command-line=BOOT_IMAGE=/boot/vmlinux-3.18.0-9-generic 
root=UUID=70957e56-8669-466f-b0e7-140f2ec39a04 ro splash quiet irqpoll 
maxcpus=1 nousb --initrd=/boot/initrd.img-3.18.0-9-generic 
/boot/vmlinux-3.18.0-9-generic
  root@ubuntu:~# kdump-config status
  current state   : ready to kdump

  root@ubuntu:~# sysctl -w kernel.sysrq=1
  kernel.sysrq = 1
  root@ubuntu:~# cat /proc/sys/kernel/sysrq
  1

  Trigger the crash manually using sysrq-trigger.

  root@ubuntu:~# echo c  /proc/sysrq-trigger

  root@ubuntu:~# [  311.088315] SysRq : Trigger a crash
  [  311.088331] Unable to handle kernel paging request for data at address 
0x
  [  311.088336] Faulting instruction address: 0xc05f9094
  [  311.088341] Oops: Kernel access of bad area, sig: 11 [#1]
  [  311.088344] SMP NR_CPUS=2048 NUMA pSeries
  [  311.088349] Modules linked in: xt_CHECKSUM iptable_mangle ipt_MASQUERADE 
nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 
nf_nat nf_conntrack xt_tcpudp bridge stp llc iptable_filter ip_tables x_tables 
pseries_rng rtc_generic binfmt_misc
  [  311.088372] CPU: 14 PID: 1705 Comm: bash Not tainted 3.18.0-9-generic 
#10-Ubuntu
  [  311.088377] task: c0027773e470 ti: c002782d task.ti: 
c002782d
  [  311.088381] NIP: c05f9094 LR: c05fa12c CTR: 
c05f9060
  [  311.088385] REGS: c002782d39d0 TRAP: 0300   Not tainted  
(3.18.0-9-generic)
  [  311.088389] MSR: 80009033 SF,EE,ME,IR,DR,RI,LE  CR: 28242822  
XER: 0001
  [  311.088401] CFAR: c00084d8 DAR:  DSISR: 4200 
SOFTE: 1
  GPR00: c05fa12c c002782d3c50 c1426890 0063
  GPR04: c1b85c28 c1b965e0 00ff c15e71f0
  GPR08: c0e76890 0001  0001
  GPR12: c05f9060 c7b37e00  2200
  GPR16: 

[Kernel-packages] [Bug 1410817] Re: Kdump triggered manually after cpu offline operation fails to collect dump

2015-01-14 Thread Chris J Arges
** Changed in: linux (Ubuntu)
   Status: New = In Progress

** Changed in: linux (Ubuntu)
 Assignee: (unassigned) = Chris J Arges (arges)

** Changed in: linux (Ubuntu)
   Importance: Undecided = Medium

-- 
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/1410817

Title:
  Kdump triggered manually after cpu offline operation fails to collect
  dump

Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Utopic:
  New

Bug description:
  ---Problem Description---
  Kdump triggered manually after cpu offline operation fails to collect dump
   
  ---uname output---
  Linux ubuntu 3.18.0-9-generic #10-Ubuntu SMP Mon Jan 12 21:35:28 UTC 2015 
ppc64le ppc64le ppc64le GNU/Linux
   
  Machine Type = P8 
   
  ---System Hang---
  We have to reboot the LPAR and gain access to the machine again.

  ---Steps to Reproduce---
  Install a Power VM LPAR with Ubuntu 15.04 ISO using Virtual DVD.
  Then offline one of the cpu's of the machine.

  root@ubuntu:~# lscpu
  Architecture:  ppc64le
  Byte Order:Little Endian
  CPU(s):16
  On-line CPU(s) list:   0-15
  Thread(s) per core:8
  Core(s) per socket:1
  Socket(s): 2
  NUMA node(s):  2
  Model: IBM,8284-22A
  Hypervisor vendor: pHyp
  Virtualization type:   para
  L1d cache: 64K
  L1i cache: 32K
  NUMA node0 CPU(s): 0-15
  NUMA node2 CPU(s):

  
  root@ubuntu:~# chcpu -d 15
  CPU 15 disabled

  root@ubuntu:~# lscpu
  Architecture:  ppc64le
  Byte Order:Little Endian
  CPU(s):16
  On-line CPU(s) list:   0-14
  Off-line CPU(s) list:  15
  Thread(s) per core:7
  Core(s) per socket:1
  Socket(s): 2
  NUMA node(s):  2
  Model: IBM,8284-22A
  Hypervisor vendor: pHyp
  Virtualization type:   para
  L1d cache: 64K
  L1i cache: 32K
  NUMA node0 CPU(s): 0-14
  NUMA node2 CPU(s):

  Configure and enable kdump on the LPAR.

  root@ubuntu:~# /etc/init.d/kdump-tools status
  current state   : ready to kdump
  root@ubuntu:~# kdump-config load
  Modified cmdline:BOOT_IMAGE=/boot/vmlinux-3.18.0-9-generic 
root=UUID=70957e56-8669-466f-b0e7-140f2ec39a04 ro splash quiet irqpoll 
maxcpus=1 nousb elfcorehdr=155072K
  segment[0].mem:0x800 memsz:24510464
  segment[1].mem:0x976 memsz:65536
  segment[2].mem:0x977 memsz:65536
  segment[3].mem:0x978 memsz:65536
  segment[4].mem:0x979 memsz:22020096
  segment[5].mem:0xec7 memsz:196608
   * loaded kdump kernel
  root@ubuntu:~#

  
  root@ubuntu:~# kdump-config show
  USE_KDUMP:1
  KDUMP_SYSCTL: kernel.panic_on_oops=1
  KDUMP_COREDIR:/var/crash
  crashkernel addr:
  current state:ready to kdump

  kexec command:
/sbin/kexec -p --args-linux 
--command-line=BOOT_IMAGE=/boot/vmlinux-3.18.0-9-generic 
root=UUID=70957e56-8669-466f-b0e7-140f2ec39a04 ro splash quiet irqpoll 
maxcpus=1 nousb --initrd=/boot/initrd.img-3.18.0-9-generic 
/boot/vmlinux-3.18.0-9-generic
  root@ubuntu:~# kdump-config status
  current state   : ready to kdump

  root@ubuntu:~# sysctl -w kernel.sysrq=1
  kernel.sysrq = 1
  root@ubuntu:~# cat /proc/sys/kernel/sysrq
  1

  
  Trigger the crash manually using sysrq-trigger.

  root@ubuntu:~# echo c  /proc/sysrq-trigger

  root@ubuntu:~# [  311.088315] SysRq : Trigger a crash
  [  311.088331] Unable to handle kernel paging request for data at address 
0x
  [  311.088336] Faulting instruction address: 0xc05f9094
  [  311.088341] Oops: Kernel access of bad area, sig: 11 [#1]
  [  311.088344] SMP NR_CPUS=2048 NUMA pSeries
  [  311.088349] Modules linked in: xt_CHECKSUM iptable_mangle ipt_MASQUERADE 
nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 
nf_nat nf_conntrack xt_tcpudp bridge stp llc iptable_filter ip_tables x_tables 
pseries_rng rtc_generic binfmt_misc
  [  311.088372] CPU: 14 PID: 1705 Comm: bash Not tainted 3.18.0-9-generic 
#10-Ubuntu
  [  311.088377] task: c0027773e470 ti: c002782d task.ti: 
c002782d
  [  311.088381] NIP: c05f9094 LR: c05fa12c CTR: 
c05f9060
  [  311.088385] REGS: c002782d39d0 TRAP: 0300   Not tainted  
(3.18.0-9-generic)
  [  311.088389] MSR: 80009033 SF,EE,ME,IR,DR,RI,LE  CR: 28242822  
XER: 0001
  [  311.088401] CFAR: c00084d8 DAR:  DSISR: 4200 
SOFTE: 1
  GPR00: c05fa12c c002782d3c50 c1426890 0063
  GPR04: c1b85c28 c1b965e0 00ff c15e71f0
  GPR08: c0e76890 0001  0001
  GPR12: c05f9060 c7b37e00  2200
  GPR16: 1016d6e8 01088208 10143eb8 100c9390
  GPR20:  

[Kernel-packages] [Bug 1410817] Re: Kdump triggered manually after cpu offline operation fails to collect dump

2015-01-14 Thread Chris J Arges
Vivid will pick up this fix when it rebases to 3.19. SRU'ing the fix for
3.16.

** Also affects: linux (Ubuntu Utopic)
   Importance: Undecided
   Status: New

** Description changed:

+ SRU Justification:
+ 
+ [Impact]
+ Kdump triggered manually after cpu offline operation fails to collect dump
+ 
+ [Test Case]
+ See Steps to Reproduce below.
+ 
+ [Fix]
+ $ git describe --contains c1caae3de46a072d0855729aed6e793e536a4a55
+ v3.19-rc3~1^2~1
+ 
+ --
+ 
+ 
  ---Problem Description---
  Kdump triggered manually after cpu offline operation fails to collect dump
-  
+ 
  ---uname output---
  Linux ubuntu 3.18.0-9-generic #10-Ubuntu SMP Mon Jan 12 21:35:28 UTC 2015 
ppc64le ppc64le ppc64le GNU/Linux
-  
- Machine Type = P8 
-  
+ 
+ Machine Type = P8
+ 
  ---System Hang---
  We have to reboot the LPAR and gain access to the machine again.
-   
+ 
  ---Steps to Reproduce---
  Install a Power VM LPAR with Ubuntu 15.04 ISO using Virtual DVD.
  Then offline one of the cpu's of the machine.
  
  root@ubuntu:~# lscpu
  Architecture:  ppc64le
  Byte Order:Little Endian
  CPU(s):16
  On-line CPU(s) list:   0-15
  Thread(s) per core:8
  Core(s) per socket:1
  Socket(s): 2
  NUMA node(s):  2
  Model: IBM,8284-22A
  Hypervisor vendor: pHyp
  Virtualization type:   para
  L1d cache: 64K
  L1i cache: 32K
  NUMA node0 CPU(s): 0-15
  NUMA node2 CPU(s):
- 
  
  root@ubuntu:~# chcpu -d 15
  CPU 15 disabled
  
  root@ubuntu:~# lscpu
  Architecture:  ppc64le
  Byte Order:Little Endian
  CPU(s):16
  On-line CPU(s) list:   0-14
  Off-line CPU(s) list:  15
  Thread(s) per core:7
  Core(s) per socket:1
  Socket(s): 2
  NUMA node(s):  2
  Model: IBM,8284-22A
  Hypervisor vendor: pHyp
  Virtualization type:   para
  L1d cache: 64K
  L1i cache: 32K
  NUMA node0 CPU(s): 0-14
  NUMA node2 CPU(s):
  
  Configure and enable kdump on the LPAR.
  
  root@ubuntu:~# /etc/init.d/kdump-tools status
  current state   : ready to kdump
  root@ubuntu:~# kdump-config load
  Modified cmdline:BOOT_IMAGE=/boot/vmlinux-3.18.0-9-generic 
root=UUID=70957e56-8669-466f-b0e7-140f2ec39a04 ro splash quiet irqpoll 
maxcpus=1 nousb elfcorehdr=155072K
  segment[0].mem:0x800 memsz:24510464
  segment[1].mem:0x976 memsz:65536
  segment[2].mem:0x977 memsz:65536
  segment[3].mem:0x978 memsz:65536
  segment[4].mem:0x979 memsz:22020096
  segment[5].mem:0xec7 memsz:196608
-  * loaded kdump kernel
+  * loaded kdump kernel
  root@ubuntu:~#
- 
  
  root@ubuntu:~# kdump-config show
  USE_KDUMP:1
  KDUMP_SYSCTL: kernel.panic_on_oops=1
  KDUMP_COREDIR:/var/crash
  crashkernel addr:
  current state:ready to kdump
  
  kexec command:
-   /sbin/kexec -p --args-linux 
--command-line=BOOT_IMAGE=/boot/vmlinux-3.18.0-9-generic 
root=UUID=70957e56-8669-466f-b0e7-140f2ec39a04 ro splash quiet irqpoll 
maxcpus=1 nousb --initrd=/boot/initrd.img-3.18.0-9-generic 
/boot/vmlinux-3.18.0-9-generic
+   /sbin/kexec -p --args-linux 
--command-line=BOOT_IMAGE=/boot/vmlinux-3.18.0-9-generic 
root=UUID=70957e56-8669-466f-b0e7-140f2ec39a04 ro splash quiet irqpoll 
maxcpus=1 nousb --initrd=/boot/initrd.img-3.18.0-9-generic 
/boot/vmlinux-3.18.0-9-generic
  root@ubuntu:~# kdump-config status
  current state   : ready to kdump
  
  root@ubuntu:~# sysctl -w kernel.sysrq=1
  kernel.sysrq = 1
  root@ubuntu:~# cat /proc/sys/kernel/sysrq
  1
- 
  
  Trigger the crash manually using sysrq-trigger.
  
  root@ubuntu:~# echo c  /proc/sysrq-trigger
  
  root@ubuntu:~# [  311.088315] SysRq : Trigger a crash
  [  311.088331] Unable to handle kernel paging request for data at address 
0x
  [  311.088336] Faulting instruction address: 0xc05f9094
  [  311.088341] Oops: Kernel access of bad area, sig: 11 [#1]
  [  311.088344] SMP NR_CPUS=2048 NUMA pSeries
  [  311.088349] Modules linked in: xt_CHECKSUM iptable_mangle ipt_MASQUERADE 
nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 
nf_nat nf_conntrack xt_tcpudp bridge stp llc iptable_filter ip_tables x_tables 
pseries_rng rtc_generic binfmt_misc
  [  311.088372] CPU: 14 PID: 1705 Comm: bash Not tainted 3.18.0-9-generic 
#10-Ubuntu
  [  311.088377] task: c0027773e470 ti: c002782d task.ti: 
c002782d
  [  311.088381] NIP: c05f9094 LR: c05fa12c CTR: 
c05f9060
  [  311.088385] REGS: c002782d39d0 TRAP: 0300   Not tainted  
(3.18.0-9-generic)
  [  311.088389] MSR: 80009033 SF,EE,ME,IR,DR,RI,LE  CR: 28242822  
XER: 0001
  [  311.088401] CFAR: c00084d8 DAR:  DSISR: 4200 
SOFTE: 1
  GPR00: c05fa12c c002782d3c50 c1426890 0063
  GPR04: c1b85c28 c1b965e0 00ff c15e71f0
  GPR08: c0e76890 0001 

[Kernel-packages] [Bug 1410817] Re: Kdump triggered manually after cpu offline operation fails to collect dump

2015-01-14 Thread Luciano Chavez
** Package changed: ubuntu = linux (Ubuntu)

-- 
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/1410817

Title:
  Kdump triggered manually after cpu offline operation fails to collect
  dump

Status in linux package in Ubuntu:
  New

Bug description:
  ---Problem Description---
  Kdump triggered manually after cpu offline operation fails to collect dump
   
  ---uname output---
  Linux ubuntu 3.18.0-9-generic #10-Ubuntu SMP Mon Jan 12 21:35:28 UTC 2015 
ppc64le ppc64le ppc64le GNU/Linux
   
  Machine Type = P8 
   
  ---System Hang---
  We have to reboot the LPAR and gain access to the machine again.

  ---Steps to Reproduce---
  Install a Power VM LPAR with Ubuntu 15.04 ISO using Virtual DVD.
  Then offline one of the cpu's of the machine.

  root@ubuntu:~# lscpu
  Architecture:  ppc64le
  Byte Order:Little Endian
  CPU(s):16
  On-line CPU(s) list:   0-15
  Thread(s) per core:8
  Core(s) per socket:1
  Socket(s): 2
  NUMA node(s):  2
  Model: IBM,8284-22A
  Hypervisor vendor: pHyp
  Virtualization type:   para
  L1d cache: 64K
  L1i cache: 32K
  NUMA node0 CPU(s): 0-15
  NUMA node2 CPU(s):

  
  root@ubuntu:~# chcpu -d 15
  CPU 15 disabled

  root@ubuntu:~# lscpu
  Architecture:  ppc64le
  Byte Order:Little Endian
  CPU(s):16
  On-line CPU(s) list:   0-14
  Off-line CPU(s) list:  15
  Thread(s) per core:7
  Core(s) per socket:1
  Socket(s): 2
  NUMA node(s):  2
  Model: IBM,8284-22A
  Hypervisor vendor: pHyp
  Virtualization type:   para
  L1d cache: 64K
  L1i cache: 32K
  NUMA node0 CPU(s): 0-14
  NUMA node2 CPU(s):

  Configure and enable kdump on the LPAR.

  root@ubuntu:~# /etc/init.d/kdump-tools status
  current state   : ready to kdump
  root@ubuntu:~# kdump-config load
  Modified cmdline:BOOT_IMAGE=/boot/vmlinux-3.18.0-9-generic 
root=UUID=70957e56-8669-466f-b0e7-140f2ec39a04 ro splash quiet irqpoll 
maxcpus=1 nousb elfcorehdr=155072K
  segment[0].mem:0x800 memsz:24510464
  segment[1].mem:0x976 memsz:65536
  segment[2].mem:0x977 memsz:65536
  segment[3].mem:0x978 memsz:65536
  segment[4].mem:0x979 memsz:22020096
  segment[5].mem:0xec7 memsz:196608
   * loaded kdump kernel
  root@ubuntu:~#

  
  root@ubuntu:~# kdump-config show
  USE_KDUMP:1
  KDUMP_SYSCTL: kernel.panic_on_oops=1
  KDUMP_COREDIR:/var/crash
  crashkernel addr:
  current state:ready to kdump

  kexec command:
/sbin/kexec -p --args-linux 
--command-line=BOOT_IMAGE=/boot/vmlinux-3.18.0-9-generic 
root=UUID=70957e56-8669-466f-b0e7-140f2ec39a04 ro splash quiet irqpoll 
maxcpus=1 nousb --initrd=/boot/initrd.img-3.18.0-9-generic 
/boot/vmlinux-3.18.0-9-generic
  root@ubuntu:~# kdump-config status
  current state   : ready to kdump

  root@ubuntu:~# sysctl -w kernel.sysrq=1
  kernel.sysrq = 1
  root@ubuntu:~# cat /proc/sys/kernel/sysrq
  1

  
  Trigger the crash manually using sysrq-trigger.

  root@ubuntu:~# echo c  /proc/sysrq-trigger

  root@ubuntu:~# [  311.088315] SysRq : Trigger a crash
  [  311.088331] Unable to handle kernel paging request for data at address 
0x
  [  311.088336] Faulting instruction address: 0xc05f9094
  [  311.088341] Oops: Kernel access of bad area, sig: 11 [#1]
  [  311.088344] SMP NR_CPUS=2048 NUMA pSeries
  [  311.088349] Modules linked in: xt_CHECKSUM iptable_mangle ipt_MASQUERADE 
nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 
nf_nat nf_conntrack xt_tcpudp bridge stp llc iptable_filter ip_tables x_tables 
pseries_rng rtc_generic binfmt_misc
  [  311.088372] CPU: 14 PID: 1705 Comm: bash Not tainted 3.18.0-9-generic 
#10-Ubuntu
  [  311.088377] task: c0027773e470 ti: c002782d task.ti: 
c002782d
  [  311.088381] NIP: c05f9094 LR: c05fa12c CTR: 
c05f9060
  [  311.088385] REGS: c002782d39d0 TRAP: 0300   Not tainted  
(3.18.0-9-generic)
  [  311.088389] MSR: 80009033 SF,EE,ME,IR,DR,RI,LE  CR: 28242822  
XER: 0001
  [  311.088401] CFAR: c00084d8 DAR:  DSISR: 4200 
SOFTE: 1
  GPR00: c05fa12c c002782d3c50 c1426890 0063
  GPR04: c1b85c28 c1b965e0 00ff c15e71f0
  GPR08: c0e76890 0001  0001
  GPR12: c05f9060 c7b37e00  2200
  GPR16: 1016d6e8 01088208 10143eb8 100c9390
  GPR20:  1017b008 10143d18 
  GPR24: 10156c00 10178868 c13756a8 0004
  GPR28: 0063 c133f598 c1375a68 
  [  311.088459] NIP 

[Kernel-packages] [Bug 1410817] Re: Kdump triggered manually after cpu offline operation fails to collect dump

2015-01-14 Thread Joseph Salisbury
** Tags added: kernel-da-key

-- 
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/1410817

Title:
  Kdump triggered manually after cpu offline operation fails to collect
  dump

Status in linux package in Ubuntu:
  New

Bug description:
  ---Problem Description---
  Kdump triggered manually after cpu offline operation fails to collect dump
   
  ---uname output---
  Linux ubuntu 3.18.0-9-generic #10-Ubuntu SMP Mon Jan 12 21:35:28 UTC 2015 
ppc64le ppc64le ppc64le GNU/Linux
   
  Machine Type = P8 
   
  ---System Hang---
  We have to reboot the LPAR and gain access to the machine again.

  ---Steps to Reproduce---
  Install a Power VM LPAR with Ubuntu 15.04 ISO using Virtual DVD.
  Then offline one of the cpu's of the machine.

  root@ubuntu:~# lscpu
  Architecture:  ppc64le
  Byte Order:Little Endian
  CPU(s):16
  On-line CPU(s) list:   0-15
  Thread(s) per core:8
  Core(s) per socket:1
  Socket(s): 2
  NUMA node(s):  2
  Model: IBM,8284-22A
  Hypervisor vendor: pHyp
  Virtualization type:   para
  L1d cache: 64K
  L1i cache: 32K
  NUMA node0 CPU(s): 0-15
  NUMA node2 CPU(s):

  
  root@ubuntu:~# chcpu -d 15
  CPU 15 disabled

  root@ubuntu:~# lscpu
  Architecture:  ppc64le
  Byte Order:Little Endian
  CPU(s):16
  On-line CPU(s) list:   0-14
  Off-line CPU(s) list:  15
  Thread(s) per core:7
  Core(s) per socket:1
  Socket(s): 2
  NUMA node(s):  2
  Model: IBM,8284-22A
  Hypervisor vendor: pHyp
  Virtualization type:   para
  L1d cache: 64K
  L1i cache: 32K
  NUMA node0 CPU(s): 0-14
  NUMA node2 CPU(s):

  Configure and enable kdump on the LPAR.

  root@ubuntu:~# /etc/init.d/kdump-tools status
  current state   : ready to kdump
  root@ubuntu:~# kdump-config load
  Modified cmdline:BOOT_IMAGE=/boot/vmlinux-3.18.0-9-generic 
root=UUID=70957e56-8669-466f-b0e7-140f2ec39a04 ro splash quiet irqpoll 
maxcpus=1 nousb elfcorehdr=155072K
  segment[0].mem:0x800 memsz:24510464
  segment[1].mem:0x976 memsz:65536
  segment[2].mem:0x977 memsz:65536
  segment[3].mem:0x978 memsz:65536
  segment[4].mem:0x979 memsz:22020096
  segment[5].mem:0xec7 memsz:196608
   * loaded kdump kernel
  root@ubuntu:~#

  
  root@ubuntu:~# kdump-config show
  USE_KDUMP:1
  KDUMP_SYSCTL: kernel.panic_on_oops=1
  KDUMP_COREDIR:/var/crash
  crashkernel addr:
  current state:ready to kdump

  kexec command:
/sbin/kexec -p --args-linux 
--command-line=BOOT_IMAGE=/boot/vmlinux-3.18.0-9-generic 
root=UUID=70957e56-8669-466f-b0e7-140f2ec39a04 ro splash quiet irqpoll 
maxcpus=1 nousb --initrd=/boot/initrd.img-3.18.0-9-generic 
/boot/vmlinux-3.18.0-9-generic
  root@ubuntu:~# kdump-config status
  current state   : ready to kdump

  root@ubuntu:~# sysctl -w kernel.sysrq=1
  kernel.sysrq = 1
  root@ubuntu:~# cat /proc/sys/kernel/sysrq
  1

  
  Trigger the crash manually using sysrq-trigger.

  root@ubuntu:~# echo c  /proc/sysrq-trigger

  root@ubuntu:~# [  311.088315] SysRq : Trigger a crash
  [  311.088331] Unable to handle kernel paging request for data at address 
0x
  [  311.088336] Faulting instruction address: 0xc05f9094
  [  311.088341] Oops: Kernel access of bad area, sig: 11 [#1]
  [  311.088344] SMP NR_CPUS=2048 NUMA pSeries
  [  311.088349] Modules linked in: xt_CHECKSUM iptable_mangle ipt_MASQUERADE 
nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 
nf_nat nf_conntrack xt_tcpudp bridge stp llc iptable_filter ip_tables x_tables 
pseries_rng rtc_generic binfmt_misc
  [  311.088372] CPU: 14 PID: 1705 Comm: bash Not tainted 3.18.0-9-generic 
#10-Ubuntu
  [  311.088377] task: c0027773e470 ti: c002782d task.ti: 
c002782d
  [  311.088381] NIP: c05f9094 LR: c05fa12c CTR: 
c05f9060
  [  311.088385] REGS: c002782d39d0 TRAP: 0300   Not tainted  
(3.18.0-9-generic)
  [  311.088389] MSR: 80009033 SF,EE,ME,IR,DR,RI,LE  CR: 28242822  
XER: 0001
  [  311.088401] CFAR: c00084d8 DAR:  DSISR: 4200 
SOFTE: 1
  GPR00: c05fa12c c002782d3c50 c1426890 0063
  GPR04: c1b85c28 c1b965e0 00ff c15e71f0
  GPR08: c0e76890 0001  0001
  GPR12: c05f9060 c7b37e00  2200
  GPR16: 1016d6e8 01088208 10143eb8 100c9390
  GPR20:  1017b008 10143d18 
  GPR24: 10156c00 10178868 c13756a8 0004
  GPR28: 0063 c133f598 c1375a68 
  [  311.088459] NIP [c05f9094]