[Kernel-packages] [Bug 1745104] Re: ISST-LTE: KVM:UBUNTU1804: kdump is not working on UbuntuKVM guest

2019-07-24 Thread Brad Figg 
** Tags added: cscc

-- 
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/1745104

Title:
  ISST-LTE: KVM:UBUNTU1804: kdump is not working on UbuntuKVM  guest

Status in The Ubuntu-power-systems project:
  Fix Released
Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Bionic:
  Fix Released

Bug description:
  == Comment: #0 - Chanh H. Nguyen  - 2018-01-23 14:55:05 
==
  root@boslcp4g5:~# cat /etc/os-release
  NAME="Ubuntu"
  VERSION="18.04 LTS (Bionic Beaver)"
  ID=ubuntu
  ID_LIKE=debian
  PRETTY_NAME="Ubuntu Bionic Beaver (development branch)"
  VERSION_ID="18.04"
  HOME_URL="https://www.ubuntu.com/;
  SUPPORT_URL="https://help.ubuntu.com/;
  BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/;
  
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy;
  VERSION_CODENAME=bionic
  UBUNTU_CODENAME=bionic
  root@boslcp4g5:~# uname -r
  4.13.0-25-generic
  root@boslcp4g5:~# kdump-config show
  DUMP_MODE:kdump
  USE_KDUMP:1
  KDUMP_SYSCTL: kernel.panic_on_oops=1
  KDUMP_COREDIR:/var/crash
  crashkernel addr:
 /var/lib/kdump/vmlinuz: symbolic link to /boot/vmlinux-4.13.0-25-generic
  kdump initrd:
 /var/lib/kdump/initrd.img: symbolic link to 
/var/lib/kdump/initrd.img-4.13.0-25-generic
  current state:ready to kdump

  kexec command:
/sbin/kexec -p --command-line="BOOT_IMAGE=/boot/vmlinux-4.13.0-25-generic 
root=UUID=8a776bc5-d9e0-4a1d-9218-135f9c702e11 ro splash quiet nr_cpus=1 
systemd.unit=kdump-tools.service irqpoll noirqdistrib nousb" 
--initrd=/var/lib/kdump/initrd.img /var/lib/kdump/vmlinuz
  root@boslcp4g5:~# kdump-config status
  current state   : ready to kdump
  root@boslcp4g5:~# echo c > /proc/sysrq-trigger
  [  176.911191] sysrq: SysRq : This sysrq operation is disabled.
  root@boslcp4g5:~# sysctl -w kernel.sysrq=1
  kernel.sysrq = 1
  root@boslcp4g5:~# echo c > /proc/sysrq-trigger
  [  240.304466] sysrq: SysRq : Trigger a crash
  [  240.304545] Unable to handle kernel paging request for data at address 
0x
  [  240.304656] Faulting instruction address: 0xc0792f88
  [  240.304771] Oops: Kernel access of bad area, sig: 11 [#1]
  [  240.304846] SMP NR_CPUS=2048
  [  240.304848] NUMA
  [  240.304903] pSeries
  [  240.305000] Modules linked in: sctp_diag sctp libcrc32c dccp_diag dccp 
tcp_diag udp_diag raw_diag inet_diag unix_diag af_packet_diag netlink_diag 
rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache dm_service_time 
vmx_crypto crct10dif_vpmsum binfmt_misc dm_multipath scsi_dh_rdac scsi_dh_emc 
scsi_dh_alua sunrpc sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq 
crc32c_vpmsum virtio_net virtio_scsi
  [  240.305776] CPU: 12 PID: 1860 Comm: bash Not tainted 4.13.0-25-generic 
#29-Ubuntu
  [  240.305886] task: c000ff904500 task.stack: c001f2d7c000
  [  240.305979] NIP: c0792f88 LR: c0793eb8 CTR: 
c0792f60
  [  240.306087] REGS: c001f2d7f9f0 TRAP: 0300   Not tainted  
(4.13.0-25-generic)
  [  240.306195] MSR: 80009033 
  [  240.306207]   CR: 2842  XER: 2004
  [  240.306338] CFAR: c0793eb4 DAR:  DSISR: 4200 
SOFTE: 1
  [  240.306338] GPR00: c0793eb8 c001f2d7fc70 c15f6200 
0063
  [  240.306338] GPR04: c001feeeade8 c001fef02068 6967676572206120 
63726173680d0a72
  [  240.306338] GPR08: 0007 0001  

  [  240.306338] GPR12: c0792f60 c7ac7e00 10180df8 
10189e30
  [  240.306338] GPR16: 10189ea8 10151210 1018bd58 
1018de48
  [  240.306338] GPR20: 28bc0268 0001 10164590 
10163bb0
  [  240.306338] GPR24: 7fffdcb37d34 7fffdcb37d30 c14fa770 
0002
  [  240.306338] GPR28: 0063 0007 c14824f4 
c14fab10
  [  240.307346] NIP [c0792f88] sysrq_handle_crash+0x28/0x30
  [  240.307474] LR [c0793eb8] __handle_sysrq+0xf8/0x2b0
  [  240.307553] Call Trace:
  [  240.307594] [c001f2d7fc70] [c0793e98] 
__handle_sysrq+0xd8/0x2b0 (unreliable)
  [  240.307715] [c001f2d7fd10] [c07946b4] 
write_sysrq_trigger+0x64/0x90
  [  240.307850] [c001f2d7fd40] [c044fb28] proc_reg_write+0x88/0xd0
  [  240.307951] [c001f2d7fd70] [c03a160c] __vfs_write+0x3c/0x70
  [  240.308049] [c001f2d7fd90] [c03a3248] vfs_write+0xd8/0x220
  [  240.308149] [c001f2d7fde0] [c03a50c8] SyS_write+0x68/0x110
  [  240.308248] [c001f2d7fe30] [c000b184] system_call+0x58/0x6c
  [  240.308340] Instruction dump:
  [  240.308400] 4bfff9f1 4bfffe50 3c4c00e6 384232a0 7c0802a6 6000 3921 
3d42001d
  [  240.308522] 394adab0 912a 7c0004ac 3940 <992a> 4e800020 
3c4c00e6 38423270
  [

[Kernel-packages] [Bug 1745104] Re: ISST-LTE: KVM:UBUNTU1804: kdump is not working on UbuntuKVM guest

2018-03-01 Thread bugproxy 
** Tags removed: targetmilestone-inin---
** Tags added: targetmilestone-inin1804

-- 
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/1745104

Title:
  ISST-LTE: KVM:UBUNTU1804: kdump is not working on UbuntuKVM  guest

Status in The Ubuntu-power-systems project:
  Fix Released
Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Bionic:
  Fix Released

Bug description:
  == Comment: #0 - Chanh H. Nguyen  - 2018-01-23 14:55:05 
==
  root@boslcp4g5:~# cat /etc/os-release
  NAME="Ubuntu"
  VERSION="18.04 LTS (Bionic Beaver)"
  ID=ubuntu
  ID_LIKE=debian
  PRETTY_NAME="Ubuntu Bionic Beaver (development branch)"
  VERSION_ID="18.04"
  HOME_URL="https://www.ubuntu.com/;
  SUPPORT_URL="https://help.ubuntu.com/;
  BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/;
  
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy;
  VERSION_CODENAME=bionic
  UBUNTU_CODENAME=bionic
  root@boslcp4g5:~# uname -r
  4.13.0-25-generic
  root@boslcp4g5:~# kdump-config show
  DUMP_MODE:kdump
  USE_KDUMP:1
  KDUMP_SYSCTL: kernel.panic_on_oops=1
  KDUMP_COREDIR:/var/crash
  crashkernel addr:
 /var/lib/kdump/vmlinuz: symbolic link to /boot/vmlinux-4.13.0-25-generic
  kdump initrd:
 /var/lib/kdump/initrd.img: symbolic link to 
/var/lib/kdump/initrd.img-4.13.0-25-generic
  current state:ready to kdump

  kexec command:
/sbin/kexec -p --command-line="BOOT_IMAGE=/boot/vmlinux-4.13.0-25-generic 
root=UUID=8a776bc5-d9e0-4a1d-9218-135f9c702e11 ro splash quiet nr_cpus=1 
systemd.unit=kdump-tools.service irqpoll noirqdistrib nousb" 
--initrd=/var/lib/kdump/initrd.img /var/lib/kdump/vmlinuz
  root@boslcp4g5:~# kdump-config status
  current state   : ready to kdump
  root@boslcp4g5:~# echo c > /proc/sysrq-trigger
  [  176.911191] sysrq: SysRq : This sysrq operation is disabled.
  root@boslcp4g5:~# sysctl -w kernel.sysrq=1
  kernel.sysrq = 1
  root@boslcp4g5:~# echo c > /proc/sysrq-trigger
  [  240.304466] sysrq: SysRq : Trigger a crash
  [  240.304545] Unable to handle kernel paging request for data at address 
0x
  [  240.304656] Faulting instruction address: 0xc0792f88
  [  240.304771] Oops: Kernel access of bad area, sig: 11 [#1]
  [  240.304846] SMP NR_CPUS=2048
  [  240.304848] NUMA
  [  240.304903] pSeries
  [  240.305000] Modules linked in: sctp_diag sctp libcrc32c dccp_diag dccp 
tcp_diag udp_diag raw_diag inet_diag unix_diag af_packet_diag netlink_diag 
rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache dm_service_time 
vmx_crypto crct10dif_vpmsum binfmt_misc dm_multipath scsi_dh_rdac scsi_dh_emc 
scsi_dh_alua sunrpc sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq 
crc32c_vpmsum virtio_net virtio_scsi
  [  240.305776] CPU: 12 PID: 1860 Comm: bash Not tainted 4.13.0-25-generic 
#29-Ubuntu
  [  240.305886] task: c000ff904500 task.stack: c001f2d7c000
  [  240.305979] NIP: c0792f88 LR: c0793eb8 CTR: 
c0792f60
  [  240.306087] REGS: c001f2d7f9f0 TRAP: 0300   Not tainted  
(4.13.0-25-generic)
  [  240.306195] MSR: 80009033 
  [  240.306207]   CR: 2842  XER: 2004
  [  240.306338] CFAR: c0793eb4 DAR:  DSISR: 4200 
SOFTE: 1
  [  240.306338] GPR00: c0793eb8 c001f2d7fc70 c15f6200 
0063
  [  240.306338] GPR04: c001feeeade8 c001fef02068 6967676572206120 
63726173680d0a72
  [  240.306338] GPR08: 0007 0001  

  [  240.306338] GPR12: c0792f60 c7ac7e00 10180df8 
10189e30
  [  240.306338] GPR16: 10189ea8 10151210 1018bd58 
1018de48
  [  240.306338] GPR20: 28bc0268 0001 10164590 
10163bb0
  [  240.306338] GPR24: 7fffdcb37d34 7fffdcb37d30 c14fa770 
0002
  [  240.306338] GPR28: 0063 0007 c14824f4 
c14fab10
  [  240.307346] NIP [c0792f88] sysrq_handle_crash+0x28/0x30
  [  240.307474] LR [c0793eb8] __handle_sysrq+0xf8/0x2b0
  [  240.307553] Call Trace:
  [  240.307594] [c001f2d7fc70] [c0793e98] 
__handle_sysrq+0xd8/0x2b0 (unreliable)
  [  240.307715] [c001f2d7fd10] [c07946b4] 
write_sysrq_trigger+0x64/0x90
  [  240.307850] [c001f2d7fd40] [c044fb28] proc_reg_write+0x88/0xd0
  [  240.307951] [c001f2d7fd70] [c03a160c] __vfs_write+0x3c/0x70
  [  240.308049] [c001f2d7fd90] [c03a3248] vfs_write+0xd8/0x220
  [  240.308149] [c001f2d7fde0] [c03a50c8] SyS_write+0x68/0x110
  [  240.308248] [c001f2d7fe30] [c000b184] system_call+0x58/0x6c
  [  240.308340] Instruction dump:
  [  240.308400] 4bfff9f1 4bfffe50 3c4c00e6 384232a0 7c0802a6 6000 3921

[Kernel-packages] [Bug 1745104] Re: ISST-LTE: KVM:UBUNTU1804: kdump is not working on UbuntuKVM guest

2018-02-26 Thread Joseph Salisbury 
** Changed in: linux (Ubuntu Bionic)
   Status: Fix Committed => Fix Released

** Changed in: ubuntu-power-systems
   Status: Fix Committed => Fix Released

-- 
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/1745104

Title:
  ISST-LTE: KVM:UBUNTU1804: kdump is not working on UbuntuKVM  guest

Status in The Ubuntu-power-systems project:
  Fix Released
Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Bionic:
  Fix Released

Bug description:
  == Comment: #0 - Chanh H. Nguyen  - 2018-01-23 14:55:05 
==
  root@boslcp4g5:~# cat /etc/os-release
  NAME="Ubuntu"
  VERSION="18.04 LTS (Bionic Beaver)"
  ID=ubuntu
  ID_LIKE=debian
  PRETTY_NAME="Ubuntu Bionic Beaver (development branch)"
  VERSION_ID="18.04"
  HOME_URL="https://www.ubuntu.com/;
  SUPPORT_URL="https://help.ubuntu.com/;
  BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/;
  
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy;
  VERSION_CODENAME=bionic
  UBUNTU_CODENAME=bionic
  root@boslcp4g5:~# uname -r
  4.13.0-25-generic
  root@boslcp4g5:~# kdump-config show
  DUMP_MODE:kdump
  USE_KDUMP:1
  KDUMP_SYSCTL: kernel.panic_on_oops=1
  KDUMP_COREDIR:/var/crash
  crashkernel addr:
 /var/lib/kdump/vmlinuz: symbolic link to /boot/vmlinux-4.13.0-25-generic
  kdump initrd:
 /var/lib/kdump/initrd.img: symbolic link to 
/var/lib/kdump/initrd.img-4.13.0-25-generic
  current state:ready to kdump

  kexec command:
/sbin/kexec -p --command-line="BOOT_IMAGE=/boot/vmlinux-4.13.0-25-generic 
root=UUID=8a776bc5-d9e0-4a1d-9218-135f9c702e11 ro splash quiet nr_cpus=1 
systemd.unit=kdump-tools.service irqpoll noirqdistrib nousb" 
--initrd=/var/lib/kdump/initrd.img /var/lib/kdump/vmlinuz
  root@boslcp4g5:~# kdump-config status
  current state   : ready to kdump
  root@boslcp4g5:~# echo c > /proc/sysrq-trigger
  [  176.911191] sysrq: SysRq : This sysrq operation is disabled.
  root@boslcp4g5:~# sysctl -w kernel.sysrq=1
  kernel.sysrq = 1
  root@boslcp4g5:~# echo c > /proc/sysrq-trigger
  [  240.304466] sysrq: SysRq : Trigger a crash
  [  240.304545] Unable to handle kernel paging request for data at address 
0x
  [  240.304656] Faulting instruction address: 0xc0792f88
  [  240.304771] Oops: Kernel access of bad area, sig: 11 [#1]
  [  240.304846] SMP NR_CPUS=2048
  [  240.304848] NUMA
  [  240.304903] pSeries
  [  240.305000] Modules linked in: sctp_diag sctp libcrc32c dccp_diag dccp 
tcp_diag udp_diag raw_diag inet_diag unix_diag af_packet_diag netlink_diag 
rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache dm_service_time 
vmx_crypto crct10dif_vpmsum binfmt_misc dm_multipath scsi_dh_rdac scsi_dh_emc 
scsi_dh_alua sunrpc sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq 
crc32c_vpmsum virtio_net virtio_scsi
  [  240.305776] CPU: 12 PID: 1860 Comm: bash Not tainted 4.13.0-25-generic 
#29-Ubuntu
  [  240.305886] task: c000ff904500 task.stack: c001f2d7c000
  [  240.305979] NIP: c0792f88 LR: c0793eb8 CTR: 
c0792f60
  [  240.306087] REGS: c001f2d7f9f0 TRAP: 0300   Not tainted  
(4.13.0-25-generic)
  [  240.306195] MSR: 80009033 
  [  240.306207]   CR: 2842  XER: 2004
  [  240.306338] CFAR: c0793eb4 DAR:  DSISR: 4200 
SOFTE: 1
  [  240.306338] GPR00: c0793eb8 c001f2d7fc70 c15f6200 
0063
  [  240.306338] GPR04: c001feeeade8 c001fef02068 6967676572206120 
63726173680d0a72
  [  240.306338] GPR08: 0007 0001  

  [  240.306338] GPR12: c0792f60 c7ac7e00 10180df8 
10189e30
  [  240.306338] GPR16: 10189ea8 10151210 1018bd58 
1018de48
  [  240.306338] GPR20: 28bc0268 0001 10164590 
10163bb0
  [  240.306338] GPR24: 7fffdcb37d34 7fffdcb37d30 c14fa770 
0002
  [  240.306338] GPR28: 0063 0007 c14824f4 
c14fab10
  [  240.307346] NIP [c0792f88] sysrq_handle_crash+0x28/0x30
  [  240.307474] LR [c0793eb8] __handle_sysrq+0xf8/0x2b0
  [  240.307553] Call Trace:
  [  240.307594] [c001f2d7fc70] [c0793e98] 
__handle_sysrq+0xd8/0x2b0 (unreliable)
  [  240.307715] [c001f2d7fd10] [c07946b4] 
write_sysrq_trigger+0x64/0x90
  [  240.307850] [c001f2d7fd40] [c044fb28] proc_reg_write+0x88/0xd0
  [  240.307951] [c001f2d7fd70] [c03a160c] __vfs_write+0x3c/0x70
  [  240.308049] [c001f2d7fd90] [c03a3248] vfs_write+0xd8/0x220
  [  240.308149] [c001f2d7fde0] [c03a50c8] SyS_write+0x68/0x110
  [  240.308248] [c001f2d7fe30] [c000b184] system_call+0x58/0x6c
  [  240.308340] Instruction dump:
  [

[Kernel-packages] [Bug 1745104] Re: ISST-LTE: KVM:UBUNTU1804: kdump is not working on UbuntuKVM guest

2018-02-26 Thread Frank Heimes 
** Changed in: ubuntu-power-systems
   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/1745104

Title:
  ISST-LTE: KVM:UBUNTU1804: kdump is not working on UbuntuKVM  guest

Status in The Ubuntu-power-systems project:
  Fix Committed
Status in linux package in Ubuntu:
  Fix Committed
Status in linux source package in Bionic:
  Fix Committed

Bug description:
  == Comment: #0 - Chanh H. Nguyen  - 2018-01-23 14:55:05 
==
  root@boslcp4g5:~# cat /etc/os-release
  NAME="Ubuntu"
  VERSION="18.04 LTS (Bionic Beaver)"
  ID=ubuntu
  ID_LIKE=debian
  PRETTY_NAME="Ubuntu Bionic Beaver (development branch)"
  VERSION_ID="18.04"
  HOME_URL="https://www.ubuntu.com/;
  SUPPORT_URL="https://help.ubuntu.com/;
  BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/;
  
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy;
  VERSION_CODENAME=bionic
  UBUNTU_CODENAME=bionic
  root@boslcp4g5:~# uname -r
  4.13.0-25-generic
  root@boslcp4g5:~# kdump-config show
  DUMP_MODE:kdump
  USE_KDUMP:1
  KDUMP_SYSCTL: kernel.panic_on_oops=1
  KDUMP_COREDIR:/var/crash
  crashkernel addr:
 /var/lib/kdump/vmlinuz: symbolic link to /boot/vmlinux-4.13.0-25-generic
  kdump initrd:
 /var/lib/kdump/initrd.img: symbolic link to 
/var/lib/kdump/initrd.img-4.13.0-25-generic
  current state:ready to kdump

  kexec command:
/sbin/kexec -p --command-line="BOOT_IMAGE=/boot/vmlinux-4.13.0-25-generic 
root=UUID=8a776bc5-d9e0-4a1d-9218-135f9c702e11 ro splash quiet nr_cpus=1 
systemd.unit=kdump-tools.service irqpoll noirqdistrib nousb" 
--initrd=/var/lib/kdump/initrd.img /var/lib/kdump/vmlinuz
  root@boslcp4g5:~# kdump-config status
  current state   : ready to kdump
  root@boslcp4g5:~# echo c > /proc/sysrq-trigger
  [  176.911191] sysrq: SysRq : This sysrq operation is disabled.
  root@boslcp4g5:~# sysctl -w kernel.sysrq=1
  kernel.sysrq = 1
  root@boslcp4g5:~# echo c > /proc/sysrq-trigger
  [  240.304466] sysrq: SysRq : Trigger a crash
  [  240.304545] Unable to handle kernel paging request for data at address 
0x
  [  240.304656] Faulting instruction address: 0xc0792f88
  [  240.304771] Oops: Kernel access of bad area, sig: 11 [#1]
  [  240.304846] SMP NR_CPUS=2048
  [  240.304848] NUMA
  [  240.304903] pSeries
  [  240.305000] Modules linked in: sctp_diag sctp libcrc32c dccp_diag dccp 
tcp_diag udp_diag raw_diag inet_diag unix_diag af_packet_diag netlink_diag 
rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache dm_service_time 
vmx_crypto crct10dif_vpmsum binfmt_misc dm_multipath scsi_dh_rdac scsi_dh_emc 
scsi_dh_alua sunrpc sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq 
crc32c_vpmsum virtio_net virtio_scsi
  [  240.305776] CPU: 12 PID: 1860 Comm: bash Not tainted 4.13.0-25-generic 
#29-Ubuntu
  [  240.305886] task: c000ff904500 task.stack: c001f2d7c000
  [  240.305979] NIP: c0792f88 LR: c0793eb8 CTR: 
c0792f60
  [  240.306087] REGS: c001f2d7f9f0 TRAP: 0300   Not tainted  
(4.13.0-25-generic)
  [  240.306195] MSR: 80009033 
  [  240.306207]   CR: 2842  XER: 2004
  [  240.306338] CFAR: c0793eb4 DAR:  DSISR: 4200 
SOFTE: 1
  [  240.306338] GPR00: c0793eb8 c001f2d7fc70 c15f6200 
0063
  [  240.306338] GPR04: c001feeeade8 c001fef02068 6967676572206120 
63726173680d0a72
  [  240.306338] GPR08: 0007 0001  

  [  240.306338] GPR12: c0792f60 c7ac7e00 10180df8 
10189e30
  [  240.306338] GPR16: 10189ea8 10151210 1018bd58 
1018de48
  [  240.306338] GPR20: 28bc0268 0001 10164590 
10163bb0
  [  240.306338] GPR24: 7fffdcb37d34 7fffdcb37d30 c14fa770 
0002
  [  240.306338] GPR28: 0063 0007 c14824f4 
c14fab10
  [  240.307346] NIP [c0792f88] sysrq_handle_crash+0x28/0x30
  [  240.307474] LR [c0793eb8] __handle_sysrq+0xf8/0x2b0
  [  240.307553] Call Trace:
  [  240.307594] [c001f2d7fc70] [c0793e98] 
__handle_sysrq+0xd8/0x2b0 (unreliable)
  [  240.307715] [c001f2d7fd10] [c07946b4] 
write_sysrq_trigger+0x64/0x90
  [  240.307850] [c001f2d7fd40] [c044fb28] proc_reg_write+0x88/0xd0
  [  240.307951] [c001f2d7fd70] [c03a160c] __vfs_write+0x3c/0x70
  [  240.308049] [c001f2d7fd90] [c03a3248] vfs_write+0xd8/0x220
  [  240.308149] [c001f2d7fde0] [c03a50c8] SyS_write+0x68/0x110
  [  240.308248] [c001f2d7fe30] [c000b184] system_call+0x58/0x6c
  [  240.308340] Instruction dump:
  [  240.308400] 4bfff9f1 4bfffe50 3c4c00e6 384232a0 7c0802a6 6000 3921

[Kernel-packages] [Bug 1745104] Re: ISST-LTE: KVM:UBUNTU1804: kdump is not working on UbuntuKVM guest

2018-02-01 Thread Joseph Salisbury 
Commit 2621e945fbf1d is now in Bionic as of kernel version
Ubuntu-4.14.0-12.14.

** Changed in: linux (Ubuntu Bionic)
   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/1745104

Title:
  ISST-LTE: KVM:UBUNTU1804: kdump is not working on UbuntuKVM  guest

Status in The Ubuntu-power-systems project:
  In Progress
Status in linux package in Ubuntu:
  Fix Committed
Status in linux source package in Bionic:
  Fix Committed

Bug description:
  == Comment: #0 - Chanh H. Nguyen  - 2018-01-23 14:55:05 
==
  root@boslcp4g5:~# cat /etc/os-release
  NAME="Ubuntu"
  VERSION="18.04 LTS (Bionic Beaver)"
  ID=ubuntu
  ID_LIKE=debian
  PRETTY_NAME="Ubuntu Bionic Beaver (development branch)"
  VERSION_ID="18.04"
  HOME_URL="https://www.ubuntu.com/;
  SUPPORT_URL="https://help.ubuntu.com/;
  BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/;
  
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy;
  VERSION_CODENAME=bionic
  UBUNTU_CODENAME=bionic
  root@boslcp4g5:~# uname -r
  4.13.0-25-generic
  root@boslcp4g5:~# kdump-config show
  DUMP_MODE:kdump
  USE_KDUMP:1
  KDUMP_SYSCTL: kernel.panic_on_oops=1
  KDUMP_COREDIR:/var/crash
  crashkernel addr:
 /var/lib/kdump/vmlinuz: symbolic link to /boot/vmlinux-4.13.0-25-generic
  kdump initrd:
 /var/lib/kdump/initrd.img: symbolic link to 
/var/lib/kdump/initrd.img-4.13.0-25-generic
  current state:ready to kdump

  kexec command:
/sbin/kexec -p --command-line="BOOT_IMAGE=/boot/vmlinux-4.13.0-25-generic 
root=UUID=8a776bc5-d9e0-4a1d-9218-135f9c702e11 ro splash quiet nr_cpus=1 
systemd.unit=kdump-tools.service irqpoll noirqdistrib nousb" 
--initrd=/var/lib/kdump/initrd.img /var/lib/kdump/vmlinuz
  root@boslcp4g5:~# kdump-config status
  current state   : ready to kdump
  root@boslcp4g5:~# echo c > /proc/sysrq-trigger
  [  176.911191] sysrq: SysRq : This sysrq operation is disabled.
  root@boslcp4g5:~# sysctl -w kernel.sysrq=1
  kernel.sysrq = 1
  root@boslcp4g5:~# echo c > /proc/sysrq-trigger
  [  240.304466] sysrq: SysRq : Trigger a crash
  [  240.304545] Unable to handle kernel paging request for data at address 
0x
  [  240.304656] Faulting instruction address: 0xc0792f88
  [  240.304771] Oops: Kernel access of bad area, sig: 11 [#1]
  [  240.304846] SMP NR_CPUS=2048
  [  240.304848] NUMA
  [  240.304903] pSeries
  [  240.305000] Modules linked in: sctp_diag sctp libcrc32c dccp_diag dccp 
tcp_diag udp_diag raw_diag inet_diag unix_diag af_packet_diag netlink_diag 
rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache dm_service_time 
vmx_crypto crct10dif_vpmsum binfmt_misc dm_multipath scsi_dh_rdac scsi_dh_emc 
scsi_dh_alua sunrpc sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq 
crc32c_vpmsum virtio_net virtio_scsi
  [  240.305776] CPU: 12 PID: 1860 Comm: bash Not tainted 4.13.0-25-generic 
#29-Ubuntu
  [  240.305886] task: c000ff904500 task.stack: c001f2d7c000
  [  240.305979] NIP: c0792f88 LR: c0793eb8 CTR: 
c0792f60
  [  240.306087] REGS: c001f2d7f9f0 TRAP: 0300   Not tainted  
(4.13.0-25-generic)
  [  240.306195] MSR: 80009033 
  [  240.306207]   CR: 2842  XER: 2004
  [  240.306338] CFAR: c0793eb4 DAR:  DSISR: 4200 
SOFTE: 1
  [  240.306338] GPR00: c0793eb8 c001f2d7fc70 c15f6200 
0063
  [  240.306338] GPR04: c001feeeade8 c001fef02068 6967676572206120 
63726173680d0a72
  [  240.306338] GPR08: 0007 0001  

  [  240.306338] GPR12: c0792f60 c7ac7e00 10180df8 
10189e30
  [  240.306338] GPR16: 10189ea8 10151210 1018bd58 
1018de48
  [  240.306338] GPR20: 28bc0268 0001 10164590 
10163bb0
  [  240.306338] GPR24: 7fffdcb37d34 7fffdcb37d30 c14fa770 
0002
  [  240.306338] GPR28: 0063 0007 c14824f4 
c14fab10
  [  240.307346] NIP [c0792f88] sysrq_handle_crash+0x28/0x30
  [  240.307474] LR [c0793eb8] __handle_sysrq+0xf8/0x2b0
  [  240.307553] Call Trace:
  [  240.307594] [c001f2d7fc70] [c0793e98] 
__handle_sysrq+0xd8/0x2b0 (unreliable)
  [  240.307715] [c001f2d7fd10] [c07946b4] 
write_sysrq_trigger+0x64/0x90
  [  240.307850] [c001f2d7fd40] [c044fb28] proc_reg_write+0x88/0xd0
  [  240.307951] [c001f2d7fd70] [c03a160c] __vfs_write+0x3c/0x70
  [  240.308049] [c001f2d7fd90] [c03a3248] vfs_write+0xd8/0x220
  [  240.308149] [c001f2d7fde0] [c03a50c8] SyS_write+0x68/0x110
  [  240.308248] [c001f2d7fe30] [c000b184] system_call+0x58/0x6c
  [  240.308340] Instruction dump:
  [

[Kernel-packages] [Bug 1745104] Re: ISST-LTE: KVM:UBUNTU1804: kdump is not working on UbuntuKVM guest

2018-01-30 Thread Joseph Salisbury 
Thanks for the update, Hari.  I'll submit an SRU request for commit
2621e945fbf1d and we can track the new issue in a separate bug report.

-- 
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/1745104

Title:
  ISST-LTE: KVM:UBUNTU1804: kdump is not working on UbuntuKVM  guest

Status in The Ubuntu-power-systems project:
  In Progress
Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Bionic:
  In Progress

Bug description:
  == Comment: #0 - Chanh H. Nguyen  - 2018-01-23 14:55:05 
==
  root@boslcp4g5:~# cat /etc/os-release
  NAME="Ubuntu"
  VERSION="18.04 LTS (Bionic Beaver)"
  ID=ubuntu
  ID_LIKE=debian
  PRETTY_NAME="Ubuntu Bionic Beaver (development branch)"
  VERSION_ID="18.04"
  HOME_URL="https://www.ubuntu.com/;
  SUPPORT_URL="https://help.ubuntu.com/;
  BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/;
  
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy;
  VERSION_CODENAME=bionic
  UBUNTU_CODENAME=bionic
  root@boslcp4g5:~# uname -r
  4.13.0-25-generic
  root@boslcp4g5:~# kdump-config show
  DUMP_MODE:kdump
  USE_KDUMP:1
  KDUMP_SYSCTL: kernel.panic_on_oops=1
  KDUMP_COREDIR:/var/crash
  crashkernel addr:
 /var/lib/kdump/vmlinuz: symbolic link to /boot/vmlinux-4.13.0-25-generic
  kdump initrd:
 /var/lib/kdump/initrd.img: symbolic link to 
/var/lib/kdump/initrd.img-4.13.0-25-generic
  current state:ready to kdump

  kexec command:
/sbin/kexec -p --command-line="BOOT_IMAGE=/boot/vmlinux-4.13.0-25-generic 
root=UUID=8a776bc5-d9e0-4a1d-9218-135f9c702e11 ro splash quiet nr_cpus=1 
systemd.unit=kdump-tools.service irqpoll noirqdistrib nousb" 
--initrd=/var/lib/kdump/initrd.img /var/lib/kdump/vmlinuz
  root@boslcp4g5:~# kdump-config status
  current state   : ready to kdump
  root@boslcp4g5:~# echo c > /proc/sysrq-trigger
  [  176.911191] sysrq: SysRq : This sysrq operation is disabled.
  root@boslcp4g5:~# sysctl -w kernel.sysrq=1
  kernel.sysrq = 1
  root@boslcp4g5:~# echo c > /proc/sysrq-trigger
  [  240.304466] sysrq: SysRq : Trigger a crash
  [  240.304545] Unable to handle kernel paging request for data at address 
0x
  [  240.304656] Faulting instruction address: 0xc0792f88
  [  240.304771] Oops: Kernel access of bad area, sig: 11 [#1]
  [  240.304846] SMP NR_CPUS=2048
  [  240.304848] NUMA
  [  240.304903] pSeries
  [  240.305000] Modules linked in: sctp_diag sctp libcrc32c dccp_diag dccp 
tcp_diag udp_diag raw_diag inet_diag unix_diag af_packet_diag netlink_diag 
rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache dm_service_time 
vmx_crypto crct10dif_vpmsum binfmt_misc dm_multipath scsi_dh_rdac scsi_dh_emc 
scsi_dh_alua sunrpc sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq 
crc32c_vpmsum virtio_net virtio_scsi
  [  240.305776] CPU: 12 PID: 1860 Comm: bash Not tainted 4.13.0-25-generic 
#29-Ubuntu
  [  240.305886] task: c000ff904500 task.stack: c001f2d7c000
  [  240.305979] NIP: c0792f88 LR: c0793eb8 CTR: 
c0792f60
  [  240.306087] REGS: c001f2d7f9f0 TRAP: 0300   Not tainted  
(4.13.0-25-generic)
  [  240.306195] MSR: 80009033 
  [  240.306207]   CR: 2842  XER: 2004
  [  240.306338] CFAR: c0793eb4 DAR:  DSISR: 4200 
SOFTE: 1
  [  240.306338] GPR00: c0793eb8 c001f2d7fc70 c15f6200 
0063
  [  240.306338] GPR04: c001feeeade8 c001fef02068 6967676572206120 
63726173680d0a72
  [  240.306338] GPR08: 0007 0001  

  [  240.306338] GPR12: c0792f60 c7ac7e00 10180df8 
10189e30
  [  240.306338] GPR16: 10189ea8 10151210 1018bd58 
1018de48
  [  240.306338] GPR20: 28bc0268 0001 10164590 
10163bb0
  [  240.306338] GPR24: 7fffdcb37d34 7fffdcb37d30 c14fa770 
0002
  [  240.306338] GPR28: 0063 0007 c14824f4 
c14fab10
  [  240.307346] NIP [c0792f88] sysrq_handle_crash+0x28/0x30
  [  240.307474] LR [c0793eb8] __handle_sysrq+0xf8/0x2b0
  [  240.307553] Call Trace:
  [  240.307594] [c001f2d7fc70] [c0793e98] 
__handle_sysrq+0xd8/0x2b0 (unreliable)
  [  240.307715] [c001f2d7fd10] [c07946b4] 
write_sysrq_trigger+0x64/0x90
  [  240.307850] [c001f2d7fd40] [c044fb28] proc_reg_write+0x88/0xd0
  [  240.307951] [c001f2d7fd70] [c03a160c] __vfs_write+0x3c/0x70
  [  240.308049] [c001f2d7fd90] [c03a3248] vfs_write+0xd8/0x220
  [  240.308149] [c001f2d7fde0] [c03a50c8] SyS_write+0x68/0x110
  [  240.308248] [c001f2d7fe30] [c000b184] system_call+0x58/0x6c
  [  240.308340] Instruction dump:
  [  240.308400] 4bfff9f1

[Kernel-packages] [Bug 1745104] Re: ISST-LTE: KVM:UBUNTU1804: kdump is not working on UbuntuKVM guest

2018-01-24 Thread Joseph Salisbury 
I see this in the trace in comment #2:
"The kernel version is not supported."

I wonder if makedumpfile is seeing the "lp1745104" tag I put in the test
kernel name.  I'll build another kernel without this tag to see if it
helps.

-- 
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/1745104

Title:
  ISST-LTE: KVM:UBUNTU1804: kdump is not working on UbuntuKVM  guest

Status in The Ubuntu-power-systems project:
  In Progress
Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Bionic:
  In Progress

Bug description:
  == Comment: #0 - Chanh H. Nguyen  - 2018-01-23 14:55:05 
==
  root@boslcp4g5:~# cat /etc/os-release
  NAME="Ubuntu"
  VERSION="18.04 LTS (Bionic Beaver)"
  ID=ubuntu
  ID_LIKE=debian
  PRETTY_NAME="Ubuntu Bionic Beaver (development branch)"
  VERSION_ID="18.04"
  HOME_URL="https://www.ubuntu.com/;
  SUPPORT_URL="https://help.ubuntu.com/;
  BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/;
  
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy;
  VERSION_CODENAME=bionic
  UBUNTU_CODENAME=bionic
  root@boslcp4g5:~# uname -r
  4.13.0-25-generic
  root@boslcp4g5:~# kdump-config show
  DUMP_MODE:kdump
  USE_KDUMP:1
  KDUMP_SYSCTL: kernel.panic_on_oops=1
  KDUMP_COREDIR:/var/crash
  crashkernel addr:
 /var/lib/kdump/vmlinuz: symbolic link to /boot/vmlinux-4.13.0-25-generic
  kdump initrd:
 /var/lib/kdump/initrd.img: symbolic link to 
/var/lib/kdump/initrd.img-4.13.0-25-generic
  current state:ready to kdump

  kexec command:
/sbin/kexec -p --command-line="BOOT_IMAGE=/boot/vmlinux-4.13.0-25-generic 
root=UUID=8a776bc5-d9e0-4a1d-9218-135f9c702e11 ro splash quiet nr_cpus=1 
systemd.unit=kdump-tools.service irqpoll noirqdistrib nousb" 
--initrd=/var/lib/kdump/initrd.img /var/lib/kdump/vmlinuz
  root@boslcp4g5:~# kdump-config status
  current state   : ready to kdump
  root@boslcp4g5:~# echo c > /proc/sysrq-trigger
  [  176.911191] sysrq: SysRq : This sysrq operation is disabled.
  root@boslcp4g5:~# sysctl -w kernel.sysrq=1
  kernel.sysrq = 1
  root@boslcp4g5:~# echo c > /proc/sysrq-trigger
  [  240.304466] sysrq: SysRq : Trigger a crash
  [  240.304545] Unable to handle kernel paging request for data at address 
0x
  [  240.304656] Faulting instruction address: 0xc0792f88
  [  240.304771] Oops: Kernel access of bad area, sig: 11 [#1]
  [  240.304846] SMP NR_CPUS=2048
  [  240.304848] NUMA
  [  240.304903] pSeries
  [  240.305000] Modules linked in: sctp_diag sctp libcrc32c dccp_diag dccp 
tcp_diag udp_diag raw_diag inet_diag unix_diag af_packet_diag netlink_diag 
rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache dm_service_time 
vmx_crypto crct10dif_vpmsum binfmt_misc dm_multipath scsi_dh_rdac scsi_dh_emc 
scsi_dh_alua sunrpc sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq 
crc32c_vpmsum virtio_net virtio_scsi
  [  240.305776] CPU: 12 PID: 1860 Comm: bash Not tainted 4.13.0-25-generic 
#29-Ubuntu
  [  240.305886] task: c000ff904500 task.stack: c001f2d7c000
  [  240.305979] NIP: c0792f88 LR: c0793eb8 CTR: 
c0792f60
  [  240.306087] REGS: c001f2d7f9f0 TRAP: 0300   Not tainted  
(4.13.0-25-generic)
  [  240.306195] MSR: 80009033 
  [  240.306207]   CR: 2842  XER: 2004
  [  240.306338] CFAR: c0793eb4 DAR:  DSISR: 4200 
SOFTE: 1
  [  240.306338] GPR00: c0793eb8 c001f2d7fc70 c15f6200 
0063
  [  240.306338] GPR04: c001feeeade8 c001fef02068 6967676572206120 
63726173680d0a72
  [  240.306338] GPR08: 0007 0001  

  [  240.306338] GPR12: c0792f60 c7ac7e00 10180df8 
10189e30
  [  240.306338] GPR16: 10189ea8 10151210 1018bd58 
1018de48
  [  240.306338] GPR20: 28bc0268 0001 10164590 
10163bb0
  [  240.306338] GPR24: 7fffdcb37d34 7fffdcb37d30 c14fa770 
0002
  [  240.306338] GPR28: 0063 0007 c14824f4 
c14fab10
  [  240.307346] NIP [c0792f88] sysrq_handle_crash+0x28/0x30
  [  240.307474] LR [c0793eb8] __handle_sysrq+0xf8/0x2b0
  [  240.307553] Call Trace:
  [  240.307594] [c001f2d7fc70] [c0793e98] 
__handle_sysrq+0xd8/0x2b0 (unreliable)
  [  240.307715] [c001f2d7fd10] [c07946b4] 
write_sysrq_trigger+0x64/0x90
  [  240.307850] [c001f2d7fd40] [c044fb28] proc_reg_write+0x88/0xd0
  [  240.307951] [c001f2d7fd70] [c03a160c] __vfs_write+0x3c/0x70
  [  240.308049] [c001f2d7fd90] [c03a3248] vfs_write+0xd8/0x220
  [  240.308149] [c001f2d7fde0] [c03a50c8] SyS_write+0x68/0x110
  [  240.308248] [c001f2d7fe30]

[Kernel-packages] [Bug 1745104] Re: ISST-LTE: KVM:UBUNTU1804: kdump is not working on UbuntuKVM guest

2018-01-24 Thread Frank Heimes 
** Changed in: ubuntu-power-systems
   Status: Triaged => In Progress

-- 
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/1745104

Title:
  ISST-LTE: KVM:UBUNTU1804: kdump is not working on UbuntuKVM  guest

Status in The Ubuntu-power-systems project:
  In Progress
Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Bionic:
  In Progress

Bug description:
  == Comment: #0 - Chanh H. Nguyen  - 2018-01-23 14:55:05 
==
  root@boslcp4g5:~# cat /etc/os-release
  NAME="Ubuntu"
  VERSION="18.04 LTS (Bionic Beaver)"
  ID=ubuntu
  ID_LIKE=debian
  PRETTY_NAME="Ubuntu Bionic Beaver (development branch)"
  VERSION_ID="18.04"
  HOME_URL="https://www.ubuntu.com/;
  SUPPORT_URL="https://help.ubuntu.com/;
  BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/;
  
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy;
  VERSION_CODENAME=bionic
  UBUNTU_CODENAME=bionic
  root@boslcp4g5:~# uname -r
  4.13.0-25-generic
  root@boslcp4g5:~# kdump-config show
  DUMP_MODE:kdump
  USE_KDUMP:1
  KDUMP_SYSCTL: kernel.panic_on_oops=1
  KDUMP_COREDIR:/var/crash
  crashkernel addr:
 /var/lib/kdump/vmlinuz: symbolic link to /boot/vmlinux-4.13.0-25-generic
  kdump initrd:
 /var/lib/kdump/initrd.img: symbolic link to 
/var/lib/kdump/initrd.img-4.13.0-25-generic
  current state:ready to kdump

  kexec command:
/sbin/kexec -p --command-line="BOOT_IMAGE=/boot/vmlinux-4.13.0-25-generic 
root=UUID=8a776bc5-d9e0-4a1d-9218-135f9c702e11 ro splash quiet nr_cpus=1 
systemd.unit=kdump-tools.service irqpoll noirqdistrib nousb" 
--initrd=/var/lib/kdump/initrd.img /var/lib/kdump/vmlinuz
  root@boslcp4g5:~# kdump-config status
  current state   : ready to kdump
  root@boslcp4g5:~# echo c > /proc/sysrq-trigger
  [  176.911191] sysrq: SysRq : This sysrq operation is disabled.
  root@boslcp4g5:~# sysctl -w kernel.sysrq=1
  kernel.sysrq = 1
  root@boslcp4g5:~# echo c > /proc/sysrq-trigger
  [  240.304466] sysrq: SysRq : Trigger a crash
  [  240.304545] Unable to handle kernel paging request for data at address 
0x
  [  240.304656] Faulting instruction address: 0xc0792f88
  [  240.304771] Oops: Kernel access of bad area, sig: 11 [#1]
  [  240.304846] SMP NR_CPUS=2048
  [  240.304848] NUMA
  [  240.304903] pSeries
  [  240.305000] Modules linked in: sctp_diag sctp libcrc32c dccp_diag dccp 
tcp_diag udp_diag raw_diag inet_diag unix_diag af_packet_diag netlink_diag 
rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache dm_service_time 
vmx_crypto crct10dif_vpmsum binfmt_misc dm_multipath scsi_dh_rdac scsi_dh_emc 
scsi_dh_alua sunrpc sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq 
crc32c_vpmsum virtio_net virtio_scsi
  [  240.305776] CPU: 12 PID: 1860 Comm: bash Not tainted 4.13.0-25-generic 
#29-Ubuntu
  [  240.305886] task: c000ff904500 task.stack: c001f2d7c000
  [  240.305979] NIP: c0792f88 LR: c0793eb8 CTR: 
c0792f60
  [  240.306087] REGS: c001f2d7f9f0 TRAP: 0300   Not tainted  
(4.13.0-25-generic)
  [  240.306195] MSR: 80009033 
  [  240.306207]   CR: 2842  XER: 2004
  [  240.306338] CFAR: c0793eb4 DAR:  DSISR: 4200 
SOFTE: 1
  [  240.306338] GPR00: c0793eb8 c001f2d7fc70 c15f6200 
0063
  [  240.306338] GPR04: c001feeeade8 c001fef02068 6967676572206120 
63726173680d0a72
  [  240.306338] GPR08: 0007 0001  

  [  240.306338] GPR12: c0792f60 c7ac7e00 10180df8 
10189e30
  [  240.306338] GPR16: 10189ea8 10151210 1018bd58 
1018de48
  [  240.306338] GPR20: 28bc0268 0001 10164590 
10163bb0
  [  240.306338] GPR24: 7fffdcb37d34 7fffdcb37d30 c14fa770 
0002
  [  240.306338] GPR28: 0063 0007 c14824f4 
c14fab10
  [  240.307346] NIP [c0792f88] sysrq_handle_crash+0x28/0x30
  [  240.307474] LR [c0793eb8] __handle_sysrq+0xf8/0x2b0
  [  240.307553] Call Trace:
  [  240.307594] [c001f2d7fc70] [c0793e98] 
__handle_sysrq+0xd8/0x2b0 (unreliable)
  [  240.307715] [c001f2d7fd10] [c07946b4] 
write_sysrq_trigger+0x64/0x90
  [  240.307850] [c001f2d7fd40] [c044fb28] proc_reg_write+0x88/0xd0
  [  240.307951] [c001f2d7fd70] [c03a160c] __vfs_write+0x3c/0x70
  [  240.308049] [c001f2d7fd90] [c03a3248] vfs_write+0xd8/0x220
  [  240.308149] [c001f2d7fde0] [c03a50c8] SyS_write+0x68/0x110
  [  240.308248] [c001f2d7fe30] [c000b184] system_call+0x58/0x6c
  [  240.308340] Instruction dump:
  [  240.308400] 4bfff9f1 4bfffe50 3c4c00e6 384232a0 7c0802a6 6000 3921 
3d42001d
  [

[Kernel-packages] [Bug 1745104] Re: ISST-LTE: KVM:UBUNTU1804: kdump is not working on UbuntuKVM guest

2018-01-24 Thread Joseph Salisbury 
I built a test kernel with commit 2621e945fbf1d6df5f3f0ba7be5bae3d2cf9b6a5.  
The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1745104

Can you test this kernel and see if it resolves this bug?

Note, to test this kernel, you need to install both the linux-image and
linux-image-extra .deb packages.

Thanks in advance!

** Also affects: linux (Ubuntu Bionic)
   Importance: Critical
 Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage)
   Status: Triaged

** Changed in: linux (Ubuntu Bionic)
   Status: Triaged => In Progress

** Changed in: linux (Ubuntu Bionic)
 Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) => 
Joseph Salisbury (jsalisbury)

-- 
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/1745104

Title:
  ISST-LTE: KVM:UBUNTU1804: kdump is not working on UbuntuKVM  guest

Status in The Ubuntu-power-systems project:
  Triaged
Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Bionic:
  In Progress

Bug description:
  == Comment: #0 - Chanh H. Nguyen  - 2018-01-23 14:55:05 
==
  root@boslcp4g5:~# cat /etc/os-release
  NAME="Ubuntu"
  VERSION="18.04 LTS (Bionic Beaver)"
  ID=ubuntu
  ID_LIKE=debian
  PRETTY_NAME="Ubuntu Bionic Beaver (development branch)"
  VERSION_ID="18.04"
  HOME_URL="https://www.ubuntu.com/;
  SUPPORT_URL="https://help.ubuntu.com/;
  BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/;
  
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy;
  VERSION_CODENAME=bionic
  UBUNTU_CODENAME=bionic
  root@boslcp4g5:~# uname -r
  4.13.0-25-generic
  root@boslcp4g5:~# kdump-config show
  DUMP_MODE:kdump
  USE_KDUMP:1
  KDUMP_SYSCTL: kernel.panic_on_oops=1
  KDUMP_COREDIR:/var/crash
  crashkernel addr:
 /var/lib/kdump/vmlinuz: symbolic link to /boot/vmlinux-4.13.0-25-generic
  kdump initrd:
 /var/lib/kdump/initrd.img: symbolic link to 
/var/lib/kdump/initrd.img-4.13.0-25-generic
  current state:ready to kdump

  kexec command:
/sbin/kexec -p --command-line="BOOT_IMAGE=/boot/vmlinux-4.13.0-25-generic 
root=UUID=8a776bc5-d9e0-4a1d-9218-135f9c702e11 ro splash quiet nr_cpus=1 
systemd.unit=kdump-tools.service irqpoll noirqdistrib nousb" 
--initrd=/var/lib/kdump/initrd.img /var/lib/kdump/vmlinuz
  root@boslcp4g5:~# kdump-config status
  current state   : ready to kdump
  root@boslcp4g5:~# echo c > /proc/sysrq-trigger
  [  176.911191] sysrq: SysRq : This sysrq operation is disabled.
  root@boslcp4g5:~# sysctl -w kernel.sysrq=1
  kernel.sysrq = 1
  root@boslcp4g5:~# echo c > /proc/sysrq-trigger
  [  240.304466] sysrq: SysRq : Trigger a crash
  [  240.304545] Unable to handle kernel paging request for data at address 
0x
  [  240.304656] Faulting instruction address: 0xc0792f88
  [  240.304771] Oops: Kernel access of bad area, sig: 11 [#1]
  [  240.304846] SMP NR_CPUS=2048
  [  240.304848] NUMA
  [  240.304903] pSeries
  [  240.305000] Modules linked in: sctp_diag sctp libcrc32c dccp_diag dccp 
tcp_diag udp_diag raw_diag inet_diag unix_diag af_packet_diag netlink_diag 
rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache dm_service_time 
vmx_crypto crct10dif_vpmsum binfmt_misc dm_multipath scsi_dh_rdac scsi_dh_emc 
scsi_dh_alua sunrpc sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq 
crc32c_vpmsum virtio_net virtio_scsi
  [  240.305776] CPU: 12 PID: 1860 Comm: bash Not tainted 4.13.0-25-generic 
#29-Ubuntu
  [  240.305886] task: c000ff904500 task.stack: c001f2d7c000
  [  240.305979] NIP: c0792f88 LR: c0793eb8 CTR: 
c0792f60
  [  240.306087] REGS: c001f2d7f9f0 TRAP: 0300   Not tainted  
(4.13.0-25-generic)
  [  240.306195] MSR: 80009033 
  [  240.306207]   CR: 2842  XER: 2004
  [  240.306338] CFAR: c0793eb4 DAR:  DSISR: 4200 
SOFTE: 1
  [  240.306338] GPR00: c0793eb8 c001f2d7fc70 c15f6200 
0063
  [  240.306338] GPR04: c001feeeade8 c001fef02068 6967676572206120 
63726173680d0a72
  [  240.306338] GPR08: 0007 0001  

  [  240.306338] GPR12: c0792f60 c7ac7e00 10180df8 
10189e30
  [  240.306338] GPR16: 10189ea8 10151210 1018bd58 
1018de48
  [  240.306338] GPR20: 28bc0268 0001 10164590 
10163bb0
  [  240.306338] GPR24: 7fffdcb37d34 7fffdcb37d30 c14fa770 
0002
  [  240.306338] GPR28: 0063 0007 c14824f4 
c14fab10
  [  240.307346] NIP [c0792f88] sysrq_handle_crash+0x28/0x30
  [  240.307474] LR [c0793eb8] __handle_sysrq+0xf8/0x2b0
  [  240.307553] Call Trace:
  [  240.307594] [c001f2d7fc70]

[Kernel-packages] [Bug 1745104] Re: ISST-LTE: KVM:UBUNTU1804: kdump is not working on UbuntuKVM guest

2018-01-24 Thread Frank Heimes 
** Changed in: ubuntu-power-systems
   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/1745104

Title:
  ISST-LTE: KVM:UBUNTU1804: kdump is not working on UbuntuKVM  guest

Status in The Ubuntu-power-systems project:
  Triaged
Status in linux package in Ubuntu:
  Triaged

Bug description:
  == Comment: #0 - Chanh H. Nguyen  - 2018-01-23 14:55:05 
==
  root@boslcp4g5:~# cat /etc/os-release
  NAME="Ubuntu"
  VERSION="18.04 LTS (Bionic Beaver)"
  ID=ubuntu
  ID_LIKE=debian
  PRETTY_NAME="Ubuntu Bionic Beaver (development branch)"
  VERSION_ID="18.04"
  HOME_URL="https://www.ubuntu.com/;
  SUPPORT_URL="https://help.ubuntu.com/;
  BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/;
  
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy;
  VERSION_CODENAME=bionic
  UBUNTU_CODENAME=bionic
  root@boslcp4g5:~# uname -r
  4.13.0-25-generic
  root@boslcp4g5:~# kdump-config show
  DUMP_MODE:kdump
  USE_KDUMP:1
  KDUMP_SYSCTL: kernel.panic_on_oops=1
  KDUMP_COREDIR:/var/crash
  crashkernel addr:
 /var/lib/kdump/vmlinuz: symbolic link to /boot/vmlinux-4.13.0-25-generic
  kdump initrd:
 /var/lib/kdump/initrd.img: symbolic link to 
/var/lib/kdump/initrd.img-4.13.0-25-generic
  current state:ready to kdump

  kexec command:
/sbin/kexec -p --command-line="BOOT_IMAGE=/boot/vmlinux-4.13.0-25-generic 
root=UUID=8a776bc5-d9e0-4a1d-9218-135f9c702e11 ro splash quiet nr_cpus=1 
systemd.unit=kdump-tools.service irqpoll noirqdistrib nousb" 
--initrd=/var/lib/kdump/initrd.img /var/lib/kdump/vmlinuz
  root@boslcp4g5:~# kdump-config status
  current state   : ready to kdump
  root@boslcp4g5:~# echo c > /proc/sysrq-trigger
  [  176.911191] sysrq: SysRq : This sysrq operation is disabled.
  root@boslcp4g5:~# sysctl -w kernel.sysrq=1
  kernel.sysrq = 1
  root@boslcp4g5:~# echo c > /proc/sysrq-trigger
  [  240.304466] sysrq: SysRq : Trigger a crash
  [  240.304545] Unable to handle kernel paging request for data at address 
0x
  [  240.304656] Faulting instruction address: 0xc0792f88
  [  240.304771] Oops: Kernel access of bad area, sig: 11 [#1]
  [  240.304846] SMP NR_CPUS=2048
  [  240.304848] NUMA
  [  240.304903] pSeries
  [  240.305000] Modules linked in: sctp_diag sctp libcrc32c dccp_diag dccp 
tcp_diag udp_diag raw_diag inet_diag unix_diag af_packet_diag netlink_diag 
rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache dm_service_time 
vmx_crypto crct10dif_vpmsum binfmt_misc dm_multipath scsi_dh_rdac scsi_dh_emc 
scsi_dh_alua sunrpc sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq 
crc32c_vpmsum virtio_net virtio_scsi
  [  240.305776] CPU: 12 PID: 1860 Comm: bash Not tainted 4.13.0-25-generic 
#29-Ubuntu
  [  240.305886] task: c000ff904500 task.stack: c001f2d7c000
  [  240.305979] NIP: c0792f88 LR: c0793eb8 CTR: 
c0792f60
  [  240.306087] REGS: c001f2d7f9f0 TRAP: 0300   Not tainted  
(4.13.0-25-generic)
  [  240.306195] MSR: 80009033 
  [  240.306207]   CR: 2842  XER: 2004
  [  240.306338] CFAR: c0793eb4 DAR:  DSISR: 4200 
SOFTE: 1
  [  240.306338] GPR00: c0793eb8 c001f2d7fc70 c15f6200 
0063
  [  240.306338] GPR04: c001feeeade8 c001fef02068 6967676572206120 
63726173680d0a72
  [  240.306338] GPR08: 0007 0001  

  [  240.306338] GPR12: c0792f60 c7ac7e00 10180df8 
10189e30
  [  240.306338] GPR16: 10189ea8 10151210 1018bd58 
1018de48
  [  240.306338] GPR20: 28bc0268 0001 10164590 
10163bb0
  [  240.306338] GPR24: 7fffdcb37d34 7fffdcb37d30 c14fa770 
0002
  [  240.306338] GPR28: 0063 0007 c14824f4 
c14fab10
  [  240.307346] NIP [c0792f88] sysrq_handle_crash+0x28/0x30
  [  240.307474] LR [c0793eb8] __handle_sysrq+0xf8/0x2b0
  [  240.307553] Call Trace:
  [  240.307594] [c001f2d7fc70] [c0793e98] 
__handle_sysrq+0xd8/0x2b0 (unreliable)
  [  240.307715] [c001f2d7fd10] [c07946b4] 
write_sysrq_trigger+0x64/0x90
  [  240.307850] [c001f2d7fd40] [c044fb28] proc_reg_write+0x88/0xd0
  [  240.307951] [c001f2d7fd70] [c03a160c] __vfs_write+0x3c/0x70
  [  240.308049] [c001f2d7fd90] [c03a3248] vfs_write+0xd8/0x220
  [  240.308149] [c001f2d7fde0] [c03a50c8] SyS_write+0x68/0x110
  [  240.308248] [c001f2d7fe30] [c000b184] system_call+0x58/0x6c
  [  240.308340] Instruction dump:
  [  240.308400] 4bfff9f1 4bfffe50 3c4c00e6 384232a0 7c0802a6 6000 3921 
3d42001d
  [  240.308522] 394adab0 912a 7c0004ac 3940 <992a> 4e800020

[Kernel-packages] [Bug 1745104] Re: ISST-LTE: KVM:UBUNTU1804: kdump is not working on UbuntuKVM guest

2018-01-24 Thread Joseph Salisbury 
** Changed in: linux (Ubuntu)
   Importance: Undecided => Critical

** 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/1745104

Title:
  ISST-LTE: KVM:UBUNTU1804: kdump is not working on UbuntuKVM  guest

Status in The Ubuntu-power-systems project:
  New
Status in linux package in Ubuntu:
  Triaged

Bug description:
  == Comment: #0 - Chanh H. Nguyen  - 2018-01-23 14:55:05 
==
  root@boslcp4g5:~# cat /etc/os-release
  NAME="Ubuntu"
  VERSION="18.04 LTS (Bionic Beaver)"
  ID=ubuntu
  ID_LIKE=debian
  PRETTY_NAME="Ubuntu Bionic Beaver (development branch)"
  VERSION_ID="18.04"
  HOME_URL="https://www.ubuntu.com/;
  SUPPORT_URL="https://help.ubuntu.com/;
  BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/;
  
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy;
  VERSION_CODENAME=bionic
  UBUNTU_CODENAME=bionic
  root@boslcp4g5:~# uname -r
  4.13.0-25-generic
  root@boslcp4g5:~# kdump-config show
  DUMP_MODE:kdump
  USE_KDUMP:1
  KDUMP_SYSCTL: kernel.panic_on_oops=1
  KDUMP_COREDIR:/var/crash
  crashkernel addr:
 /var/lib/kdump/vmlinuz: symbolic link to /boot/vmlinux-4.13.0-25-generic
  kdump initrd:
 /var/lib/kdump/initrd.img: symbolic link to 
/var/lib/kdump/initrd.img-4.13.0-25-generic
  current state:ready to kdump

  kexec command:
/sbin/kexec -p --command-line="BOOT_IMAGE=/boot/vmlinux-4.13.0-25-generic 
root=UUID=8a776bc5-d9e0-4a1d-9218-135f9c702e11 ro splash quiet nr_cpus=1 
systemd.unit=kdump-tools.service irqpoll noirqdistrib nousb" 
--initrd=/var/lib/kdump/initrd.img /var/lib/kdump/vmlinuz
  root@boslcp4g5:~# kdump-config status
  current state   : ready to kdump
  root@boslcp4g5:~# echo c > /proc/sysrq-trigger
  [  176.911191] sysrq: SysRq : This sysrq operation is disabled.
  root@boslcp4g5:~# sysctl -w kernel.sysrq=1
  kernel.sysrq = 1
  root@boslcp4g5:~# echo c > /proc/sysrq-trigger
  [  240.304466] sysrq: SysRq : Trigger a crash
  [  240.304545] Unable to handle kernel paging request for data at address 
0x
  [  240.304656] Faulting instruction address: 0xc0792f88
  [  240.304771] Oops: Kernel access of bad area, sig: 11 [#1]
  [  240.304846] SMP NR_CPUS=2048
  [  240.304848] NUMA
  [  240.304903] pSeries
  [  240.305000] Modules linked in: sctp_diag sctp libcrc32c dccp_diag dccp 
tcp_diag udp_diag raw_diag inet_diag unix_diag af_packet_diag netlink_diag 
rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache dm_service_time 
vmx_crypto crct10dif_vpmsum binfmt_misc dm_multipath scsi_dh_rdac scsi_dh_emc 
scsi_dh_alua sunrpc sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq 
crc32c_vpmsum virtio_net virtio_scsi
  [  240.305776] CPU: 12 PID: 1860 Comm: bash Not tainted 4.13.0-25-generic 
#29-Ubuntu
  [  240.305886] task: c000ff904500 task.stack: c001f2d7c000
  [  240.305979] NIP: c0792f88 LR: c0793eb8 CTR: 
c0792f60
  [  240.306087] REGS: c001f2d7f9f0 TRAP: 0300   Not tainted  
(4.13.0-25-generic)
  [  240.306195] MSR: 80009033 
  [  240.306207]   CR: 2842  XER: 2004
  [  240.306338] CFAR: c0793eb4 DAR:  DSISR: 4200 
SOFTE: 1
  [  240.306338] GPR00: c0793eb8 c001f2d7fc70 c15f6200 
0063
  [  240.306338] GPR04: c001feeeade8 c001fef02068 6967676572206120 
63726173680d0a72
  [  240.306338] GPR08: 0007 0001  

  [  240.306338] GPR12: c0792f60 c7ac7e00 10180df8 
10189e30
  [  240.306338] GPR16: 10189ea8 10151210 1018bd58 
1018de48
  [  240.306338] GPR20: 28bc0268 0001 10164590 
10163bb0
  [  240.306338] GPR24: 7fffdcb37d34 7fffdcb37d30 c14fa770 
0002
  [  240.306338] GPR28: 0063 0007 c14824f4 
c14fab10
  [  240.307346] NIP [c0792f88] sysrq_handle_crash+0x28/0x30
  [  240.307474] LR [c0793eb8] __handle_sysrq+0xf8/0x2b0
  [  240.307553] Call Trace:
  [  240.307594] [c001f2d7fc70] [c0793e98] 
__handle_sysrq+0xd8/0x2b0 (unreliable)
  [  240.307715] [c001f2d7fd10] [c07946b4] 
write_sysrq_trigger+0x64/0x90
  [  240.307850] [c001f2d7fd40] [c044fb28] proc_reg_write+0x88/0xd0
  [  240.307951] [c001f2d7fd70] [c03a160c] __vfs_write+0x3c/0x70
  [  240.308049] [c001f2d7fd90] [c03a3248] vfs_write+0xd8/0x220
  [  240.308149] [c001f2d7fde0] [c03a50c8] SyS_write+0x68/0x110
  [  240.308248] [c001f2d7fe30] [c000b184] system_call+0x58/0x6c
  [  240.308340] Instruction dump:
  [  240.308400] 4bfff9f1 4bfffe50 3c4c00e6 384232a0 7c0802a6 6000 3921 
3d42001d
  [  240.308522]

[Kernel-packages] [Bug 1745104] Re: ISST-LTE: KVM:UBUNTU1804: kdump is not working on UbuntuKVM guest

2018-01-23 Thread Frank Heimes 
** Package changed: kernel-package (Ubuntu) => linux (Ubuntu)

** Also affects: ubuntu-power-systems
   Importance: Undecided
   Status: New

** Changed in: ubuntu-power-systems
   Importance: Undecided => Critical

** Changed in: ubuntu-power-systems
 Assignee: (unassigned) => Canonical Kernel Team (canonical-kernel-team)

** Tags added: triage-g

** Tags removed: triage-g
** Tags added: kernel-da-key

** Tags removed: kernel-da-key
** Tags added: ppc64el-kdump

** Tags added: triage-g

** 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/1745104

Title:
  ISST-LTE: KVM:UBUNTU1804: kdump is not working on UbuntuKVM  guest

Status in The Ubuntu-power-systems project:
  New
Status in linux package in Ubuntu:
  New

Bug description:
  == Comment: #0 - Chanh H. Nguyen  - 2018-01-23 14:55:05 
==
  root@boslcp4g5:~# cat /etc/os-release
  NAME="Ubuntu"
  VERSION="18.04 LTS (Bionic Beaver)"
  ID=ubuntu
  ID_LIKE=debian
  PRETTY_NAME="Ubuntu Bionic Beaver (development branch)"
  VERSION_ID="18.04"
  HOME_URL="https://www.ubuntu.com/;
  SUPPORT_URL="https://help.ubuntu.com/;
  BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/;
  
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy;
  VERSION_CODENAME=bionic
  UBUNTU_CODENAME=bionic
  root@boslcp4g5:~# uname -r
  4.13.0-25-generic
  root@boslcp4g5:~# kdump-config show
  DUMP_MODE:kdump
  USE_KDUMP:1
  KDUMP_SYSCTL: kernel.panic_on_oops=1
  KDUMP_COREDIR:/var/crash
  crashkernel addr:
 /var/lib/kdump/vmlinuz: symbolic link to /boot/vmlinux-4.13.0-25-generic
  kdump initrd:
 /var/lib/kdump/initrd.img: symbolic link to 
/var/lib/kdump/initrd.img-4.13.0-25-generic
  current state:ready to kdump

  kexec command:
/sbin/kexec -p --command-line="BOOT_IMAGE=/boot/vmlinux-4.13.0-25-generic 
root=UUID=8a776bc5-d9e0-4a1d-9218-135f9c702e11 ro splash quiet nr_cpus=1 
systemd.unit=kdump-tools.service irqpoll noirqdistrib nousb" 
--initrd=/var/lib/kdump/initrd.img /var/lib/kdump/vmlinuz
  root@boslcp4g5:~# kdump-config status
  current state   : ready to kdump
  root@boslcp4g5:~# echo c > /proc/sysrq-trigger
  [  176.911191] sysrq: SysRq : This sysrq operation is disabled.
  root@boslcp4g5:~# sysctl -w kernel.sysrq=1
  kernel.sysrq = 1
  root@boslcp4g5:~# echo c > /proc/sysrq-trigger
  [  240.304466] sysrq: SysRq : Trigger a crash
  [  240.304545] Unable to handle kernel paging request for data at address 
0x
  [  240.304656] Faulting instruction address: 0xc0792f88
  [  240.304771] Oops: Kernel access of bad area, sig: 11 [#1]
  [  240.304846] SMP NR_CPUS=2048
  [  240.304848] NUMA
  [  240.304903] pSeries
  [  240.305000] Modules linked in: sctp_diag sctp libcrc32c dccp_diag dccp 
tcp_diag udp_diag raw_diag inet_diag unix_diag af_packet_diag netlink_diag 
rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache dm_service_time 
vmx_crypto crct10dif_vpmsum binfmt_misc dm_multipath scsi_dh_rdac scsi_dh_emc 
scsi_dh_alua sunrpc sch_fq_codel ip_tables x_tables autofs4 btrfs xor raid6_pq 
crc32c_vpmsum virtio_net virtio_scsi
  [  240.305776] CPU: 12 PID: 1860 Comm: bash Not tainted 4.13.0-25-generic 
#29-Ubuntu
  [  240.305886] task: c000ff904500 task.stack: c001f2d7c000
  [  240.305979] NIP: c0792f88 LR: c0793eb8 CTR: 
c0792f60
  [  240.306087] REGS: c001f2d7f9f0 TRAP: 0300   Not tainted  
(4.13.0-25-generic)
  [  240.306195] MSR: 80009033 
  [  240.306207]   CR: 2842  XER: 2004
  [  240.306338] CFAR: c0793eb4 DAR:  DSISR: 4200 
SOFTE: 1
  [  240.306338] GPR00: c0793eb8 c001f2d7fc70 c15f6200 
0063
  [  240.306338] GPR04: c001feeeade8 c001fef02068 6967676572206120 
63726173680d0a72
  [  240.306338] GPR08: 0007 0001  

  [  240.306338] GPR12: c0792f60 c7ac7e00 10180df8 
10189e30
  [  240.306338] GPR16: 10189ea8 10151210 1018bd58 
1018de48
  [  240.306338] GPR20: 28bc0268 0001 10164590 
10163bb0
  [  240.306338] GPR24: 7fffdcb37d34 7fffdcb37d30 c14fa770 
0002
  [  240.306338] GPR28: 0063 0007 c14824f4 
c14fab10
  [  240.307346] NIP [c0792f88] sysrq_handle_crash+0x28/0x30
  [  240.307474] LR [c0793eb8] __handle_sysrq+0xf8/0x2b0
  [  240.307553] Call Trace:
  [  240.307594] [c001f2d7fc70] [c0793e98] 
__handle_sysrq+0xd8/0x2b0 (unreliable)
  [  240.307715] [c001f2d7fd10] [c07946b4] 
write_sysrq_trigger+0x64/0x90
  [  240.307850] [c001f2d7fd40] [c044fb28] proc_reg_write+0x88/0xd0
  [  240.307951] [c001f2d7fd70]