[Kernel-packages] [Bug 1704343] Comment bridged from LTC Bugzilla

2017-09-14 Thread bugproxy 
--- Comment From nasas...@in.ibm.com 2017-09-15 00:57 EDT---
This was tested with 4.12.0-12-generic kernel and not seen the issue. This 
bugzilla can be closed. Thanks!!

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Title:
  Ubuntu17.10: Changing guest timebase offset breaks host

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

Bug description:
  == Comment: #0 - NAGESWARA R. SASTRY  -
  2017-07-04 07:20:40 ==

  ---Problem Description---
  With little load on the system seeing kernel stack traces and soft lockup 
issues.
   
  Contact Information = nasas...@in.ibm.com 
   
  ---uname output---
  Linux ltc-boston25 4.12.0-041200rc6-generic #201706191233 SMP Mon Jun 19 
17:38:35 UTC 2017 ppc64le ppc64le ppc64le GNU/Linux
   
  Machine Type = Boston Power9 
   
  ---Debugger---
  A debugger is not configured
   
  ---Steps to Reproduce---
   With little load on the system seeing the stack trace. Start 2-3 guests or 
run some workload.
   
  Stack trace output:
   [56954.376790] NMI watchdog: BUG: soft lockup - CPU#44 stuck for 22s! [CPU 
3/KVM:48428]
  [56954.376949] Modules linked in: vhost_net vhost tap xt_CHECKSUM 
iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 
nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT 
nf_reject_ipv4 xt_tcpudp bridge stp llc kvm_hv kvm ebtable_filter ebtables 
ip6table_filter ip6_tables iptable_filter input_leds joydev mac_hid idt_89hpesx 
at24 nvmem_core ofpart binfmt_misc cmdlinepart powernv_flash mtd 
uio_pdrv_genirq uio ibmpowernv opal_prd ipmi_powernv ipmi_devintf vmx_crypto 
ipmi_msghandler ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp 
libiscsi scsi_transport_iscsi ip_tables x_tables autofs4 btrfs raid10 raid456 
async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq 
libcrc32c raid1 raid0 multipath linear ses enclosure scsi_transport_sas
  [56954.377200]  hid_generic usbhid hid ast i2c_algo_bit ttm drm_kms_helper 
syscopyarea crct10dif_vpmsum sysfillrect crc32c_vpmsum sysimgblt fb_sys_fops 
drm i40e aacraid
  [56954.377263] CPU: 44 PID: 48428 Comm: CPU 3/KVM Not tainted 
4.12.0-041200rc6-generic #201706191233
  [56954.377269] task: c000200a74621000 task.stack: c000200a811cc000
  [56954.377277] NIP: c01a4464 LR: c01a4424 CTR: 
c008a970
  [56954.377283] REGS: c000200a811cf7c0 TRAP: 0901   Not tainted  
(4.12.0-041200rc6-generic)
  [56954.377287] MSR: 9280b033 
  [56954.377325]   CR: 48244224  XER: 2000
  [56954.377328] CFAR: c01a4470 SOFTE: 1
 GPR00: c01a4404 c000200a811cfa40 c1503800 
0022
 GPR04: 0022 0022  
0001
 GPR08: 0001 0003 c000200a95599518 
c1541ec0
 GPR12: c008a970 cfadce00
  [56954.377403] NIP [c01a4464] smp_call_function_many+0x374/0x400
  [56954.377414] LR [c01a4424] smp_call_function_many+0x334/0x400
  [56954.377417] Call Trace:
  [56954.377429] [c000200a811cfa40] [c01a4404] 
smp_call_function_many+0x314/0x400 (unreliable)
  [56954.377444] [c000200a811cfac0] [c01a462c] 
kick_all_cpus_sync+0x3c/0x50
  [56954.377459] [c000200a811cfae0] [c006e01c] pmdp_invalidate+0x7c/0xc0
  [56954.377473] [c000200a811cfb10] [c03315f4] 
change_huge_pmd+0x1d4/0x290
  [56954.377486] [c000200a811cfb80] [c02e59c8] 
change_protection_range+0xa38/0xcf0
  [56954.377500] [c000200a811cfcc0] [c030ff88] 
change_prot_numa+0x38/0xb0
  [56954.377514] [c000200a811cfcf0] [c0130584] 
task_numa_work+0x2c4/0x3e0
  [56954.377527] [c000200a811cfdb0] [c0115060] task_work_run+0x140/0x1a0
  [56954.377541] [c000200a811cfe00] [c001cd14] 
do_notify_resume+0xf4/0x100
  [56954.377556] [c000200a811cfe30] [c000b544] 
ret_from_except_lite+0x70/0x74
  [56954.377562] Instruction dump:
  [56954.377571] 409dfd80 3d420004 394aa580 78691f24 7d2a482a e95e 7d4a4a14 
812a0018
  [56954.377597] 71280001 4182001c 6042 7c210b78 <7c421378> 812a0018 
71270001 4082fff0
  [56998.366340] NMI watchdog: BUG: soft lockup - CPU#37 stuck for 22s! 
[qemu-system-ppc:47850]
  [56998.366461] Modules linked in: vhost_net vhost tap xt_CHECKSUM 
iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 
nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT 
nf_reject_ipv4 xt_tcpudp bridge stp llc kvm_hv kvm ebtable_filter ebtables 
ip6table_filter ip6_tables iptable_filter input_leds joydev mac_hid idt_89hpesx 
at24 nvmem_core ofpart binfmt_misc cmdlinepart powernv_flash mtd

[Kernel-packages] [Bug 1704343] Comment bridged from LTC Bugzilla

2017-07-14 Thread bugproxy 
--- Comment From vipar...@in.ibm.com 2017-07-14 05:05 EDT---
Hello Canonical,

Commit 3d3efb68c19e fixes this issue.
Please include it with 17.10 kernel.

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https://bugs.launchpad.net/bugs/1704343

Title:
  Ubuntu17.10: Changing guest timebase offset breaks host

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

Bug description:
  == Comment: #0 - NAGESWARA R. SASTRY  -
  2017-07-04 07:20:40 ==

  ---Problem Description---
  With little load on the system seeing kernel stack traces and soft lockup 
issues.
   
  Contact Information = nasas...@in.ibm.com 
   
  ---uname output---
  Linux ltc-boston25 4.12.0-041200rc6-generic #201706191233 SMP Mon Jun 19 
17:38:35 UTC 2017 ppc64le ppc64le ppc64le GNU/Linux
   
  Machine Type = Boston Power9 
   
  ---Debugger---
  A debugger is not configured
   
  ---Steps to Reproduce---
   With little load on the system seeing the stack trace. Start 2-3 guests or 
run some workload.
   
  Stack trace output:
   [56954.376790] NMI watchdog: BUG: soft lockup - CPU#44 stuck for 22s! [CPU 
3/KVM:48428]
  [56954.376949] Modules linked in: vhost_net vhost tap xt_CHECKSUM 
iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 
nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT 
nf_reject_ipv4 xt_tcpudp bridge stp llc kvm_hv kvm ebtable_filter ebtables 
ip6table_filter ip6_tables iptable_filter input_leds joydev mac_hid idt_89hpesx 
at24 nvmem_core ofpart binfmt_misc cmdlinepart powernv_flash mtd 
uio_pdrv_genirq uio ibmpowernv opal_prd ipmi_powernv ipmi_devintf vmx_crypto 
ipmi_msghandler ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp 
libiscsi scsi_transport_iscsi ip_tables x_tables autofs4 btrfs raid10 raid456 
async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq 
libcrc32c raid1 raid0 multipath linear ses enclosure scsi_transport_sas
  [56954.377200]  hid_generic usbhid hid ast i2c_algo_bit ttm drm_kms_helper 
syscopyarea crct10dif_vpmsum sysfillrect crc32c_vpmsum sysimgblt fb_sys_fops 
drm i40e aacraid
  [56954.377263] CPU: 44 PID: 48428 Comm: CPU 3/KVM Not tainted 
4.12.0-041200rc6-generic #201706191233
  [56954.377269] task: c000200a74621000 task.stack: c000200a811cc000
  [56954.377277] NIP: c01a4464 LR: c01a4424 CTR: 
c008a970
  [56954.377283] REGS: c000200a811cf7c0 TRAP: 0901   Not tainted  
(4.12.0-041200rc6-generic)
  [56954.377287] MSR: 9280b033 
  [56954.377325]   CR: 48244224  XER: 2000
  [56954.377328] CFAR: c01a4470 SOFTE: 1
 GPR00: c01a4404 c000200a811cfa40 c1503800 
0022
 GPR04: 0022 0022  
0001
 GPR08: 0001 0003 c000200a95599518 
c1541ec0
 GPR12: c008a970 cfadce00
  [56954.377403] NIP [c01a4464] smp_call_function_many+0x374/0x400
  [56954.377414] LR [c01a4424] smp_call_function_many+0x334/0x400
  [56954.377417] Call Trace:
  [56954.377429] [c000200a811cfa40] [c01a4404] 
smp_call_function_many+0x314/0x400 (unreliable)
  [56954.377444] [c000200a811cfac0] [c01a462c] 
kick_all_cpus_sync+0x3c/0x50
  [56954.377459] [c000200a811cfae0] [c006e01c] pmdp_invalidate+0x7c/0xc0
  [56954.377473] [c000200a811cfb10] [c03315f4] 
change_huge_pmd+0x1d4/0x290
  [56954.377486] [c000200a811cfb80] [c02e59c8] 
change_protection_range+0xa38/0xcf0
  [56954.377500] [c000200a811cfcc0] [c030ff88] 
change_prot_numa+0x38/0xb0
  [56954.377514] [c000200a811cfcf0] [c0130584] 
task_numa_work+0x2c4/0x3e0
  [56954.377527] [c000200a811cfdb0] [c0115060] task_work_run+0x140/0x1a0
  [56954.377541] [c000200a811cfe00] [c001cd14] 
do_notify_resume+0xf4/0x100
  [56954.377556] [c000200a811cfe30] [c000b544] 
ret_from_except_lite+0x70/0x74
  [56954.377562] Instruction dump:
  [56954.377571] 409dfd80 3d420004 394aa580 78691f24 7d2a482a e95e 7d4a4a14 
812a0018
  [56954.377597] 71280001 4182001c 6042 7c210b78 <7c421378> 812a0018 
71270001 4082fff0
  [56998.366340] NMI watchdog: BUG: soft lockup - CPU#37 stuck for 22s! 
[qemu-system-ppc:47850]
  [56998.366461] Modules linked in: vhost_net vhost tap xt_CHECKSUM 
iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 
nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT 
nf_reject_ipv4 xt_tcpudp bridge stp llc kvm_hv kvm ebtable_filter ebtables 
ip6table_filter ip6_tables iptable_filter input_leds joydev mac_hid idt_89hpesx 
at24 nvmem_core ofpart binfmt_misc cmdlinepart powernv_flash mtd 
uio_pdrv_genirq uio ibmpowernv opal_prd ipmi_powernv ipmi_devintf vmx_crypto 
ipmi_msghandler