subject:"\[Kernel\-packages\] \[Bug 1724120\] \[NEW\] Ubuntu 16.10\/16.04.3 \- call traces occurs when memory\-hotplug test is run with 16Gb hugepages configured"

[Kernel-packages] [Bug 1724120] [NEW] Ubuntu 16.10/16.04.3 - call traces occurs when memory-hotplug test is run with 16Gb hugepages configured

2017-10-16 Thread bugproxy

Public bug reported:

Issue:

Call traces occurs when memory-hotplug script is run with 16Gb hugepages
configured.

Environment:
ppc64le PowerVM Lpar

root@ltctuleta-lp1:~# uname -r
4.4.0-34-generic

root@ltctuleta-lp1:~# cat /proc/meminfo | grep -i huge
AnonHugePages: 0 kB
HugePages_Total:   2
HugePages_Free:2
HugePages_Rsvd:0
HugePages_Surp:0
Hugepagesize:   16777216 kB

root@ltctuleta-lp1:~# free -h
  totalusedfree  shared  buff/cache   available
Mem:85G 32G 52G 16M193M 52G
Swap:   43G  0B 43G

Steps to reproduce:
1 - Download kernel source and enter to the directory- 
tools/testing/selftests/memory-hotplug/
2 - Run  mem-on-off-test.sh script in it.

System gives call traces like:

offline_memory_expect_success 639: unexpected fail
online-offline 668
[   57.552964] Unable to handle kernel paging request for data at address 
0x0028
[   57.552977] Faulting instruction address: 0xc029bc04
[   57.552987] Oops: Kernel access of bad area, sig: 11 [#1]
[   57.552992] SMP NR_CPUS=2048 NUMA pSeries
[   57.553002] Modules linked in: btrfs xor raid6_pq pseries_rng sunrpc autofs4 
ses enclosure nouveau bnx2x i2c_algo_bit ttm drm_kms_helper syscopyarea 
sysfillrect sysimgblt fb_sys_fops drm vxlan ip6_udp_tunnel ipr udp_tunnel 
rtc_generic mdio libcrc32c
[   57.553050] CPU: 44 PID: 6518 Comm: mem-on-off-test Not tainted 
4.4.0-34-generic #53-Ubuntu
[   57.553059] task: c0072773c8e0 ti: c0072778 task.ti: 
c0072778
[   57.553067] NIP: c029bc04 LR: c029bbdc CTR: c01107f0
[   57.553076] REGS: c00727783770 TRAP: 0300   Not tainted  
(4.4.0-34-generic)
[   57.553083] MSR: 80019033   CR: 24242882  XER: 
0002
[   57.553104] CFAR: c0008468 DAR: 0028 DSISR: 4000 
SOFTE: 1 
GPR00: c029bbdc c007277839f0 c15b5d00  
GPR04: 0029d000 0800  fa01 
GPR08: fa700020 0008 c185e270 c00e7e50 
GPR12: 2200 ce6ea200 0029d000 2200 
GPR16: 1000 c15e2200 0a70  
GPR20: 0001 0100 0200 c15f16d0 
GPR24: c1876510  0001 c1872a00 
GPR28: 0029d000 f000 fa70 0029c000 
[   57.553211] NIP [c029bc04] dissolve_free_huge_pages+0x154/0x220
[   57.553219] LR [c029bbdc] dissolve_free_huge_pages+0x12c/0x220
[   57.553226] Call Trace:
[   57.553231] [c007277839f0] [c029bbdc] 
dissolve_free_huge_pages+0x12c/0x220 (unreliable)
[   57.553244] [c00727783a80] [c02dcbc8] 
__offline_pages.constprop.6+0x3f8/0x900
[   57.553254] [c00727783bd0] [c06fbb38] 
memory_subsys_offline+0xa8/0x110
[   57.553265] [c00727783c00] [c06d6424] device_offline+0x104/0x140
[   57.553274] [c00727783c40] [c06fba80] store_mem_state+0x180/0x190
[   57.553283] [c00727783c80] [c06d1e58] dev_attr_store+0x68/0xa0
[   57.553293] [c00727783cc0] [c0398110] sysfs_kf_write+0x80/0xb0
[   57.553302] [c00727783d00] [c0397028] 
kernfs_fop_write+0x188/0x200
[   57.553312] [c00727783d50] [c02e190c] __vfs_write+0x6c/0xe0
[   57.553321] [c00727783d90] [c02e2640] vfs_write+0xc0/0x230
[   57.553329] [c00727783de0] [c02e367c] SyS_write+0x6c/0x110
[   57.553339] [c00727783e30] [c0009204] system_call+0x38/0xb4
[   57.553346] Instruction dump:
[   57.553351] 7e831836 4bfff991 e91e0028 e8fe0020 7d32e82a f9070008 f8e8 
fabe0020 
[   57.553366] fade0028 79294620 79291764 7d234a14  3908 f9030028 
81091458 
[   57.553383] ---[ end trace 617f7bdd75bcfc10 ]---
[   57.557133] 
Segmentation fault

The following commit IDs were built into a 4.10.0-37-generic #41 test
kernel and verified to fix the problem:

a525108cf1cc14651602d678da38fa627a76a724
e1073d1e7920946ac4776a619cc40668b9e1401b
40692eb5eea209c2dd55857f44b4e1d7206e91d6
e24a1307ba1f99fc62a0bd61d5e87fcfb6d5503d
79cc38ded1e1ac86e69c90f604efadd50b0b3762
4ae279c2c96ab38a78b954d218790a8f6db714e5

** Affects: linux (Ubuntu)
 Importance: Undecided
 Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage)
 Status: New


** Tags: architecture-ppc64le bugnameltc-145249 severity-high 
targetmilestone-inin16043

** Tags added: architecture-ppc64le bugnameltc-145249 severity-high
targetmilestone-inin16043

** Changed in: ubuntu
 Assignee: (unassigned) => Ubuntu on IBM Power Systems Bug Triage 
(ubuntu-power-triage)

** Package changed: ubuntu => linux (Ubuntu)

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[Kernel-packages] [Bug 1724120] [NEW] Ubuntu 16.10/16.04.3 - call traces occurs when memory-hotplug test is run with 16Gb hugepages configured

2017-10-16 Thread Launchpad Bug Tracker

You have been subscribed to a public bug:

Issue:

Call traces occurs when memory-hotplug script is run with 16Gb hugepages
configured.

Environment:
ppc64le PowerVM Lpar

root@ltctuleta-lp1:~# uname -r
4.4.0-34-generic

root@ltctuleta-lp1:~# cat /proc/meminfo | grep -i huge
AnonHugePages: 0 kB
HugePages_Total:   2
HugePages_Free:2
HugePages_Rsvd:0
HugePages_Surp:0
Hugepagesize:   16777216 kB

root@ltctuleta-lp1:~# free -h
  totalusedfree  shared  buff/cache   available
Mem:85G 32G 52G 16M193M 52G
Swap:   43G  0B 43G

Steps to reproduce:
1 - Download kernel source and enter to the directory- 
tools/testing/selftests/memory-hotplug/
2 - Run  mem-on-off-test.sh script in it.

System gives call traces like:

offline_memory_expect_success 639: unexpected fail
online-offline 668
[   57.552964] Unable to handle kernel paging request for data at address 
0x0028
[   57.552977] Faulting instruction address: 0xc029bc04
[   57.552987] Oops: Kernel access of bad area, sig: 11 [#1]
[   57.552992] SMP NR_CPUS=2048 NUMA pSeries
[   57.553002] Modules linked in: btrfs xor raid6_pq pseries_rng sunrpc autofs4 
ses enclosure nouveau bnx2x i2c_algo_bit ttm drm_kms_helper syscopyarea 
sysfillrect sysimgblt fb_sys_fops drm vxlan ip6_udp_tunnel ipr udp_tunnel 
rtc_generic mdio libcrc32c
[   57.553050] CPU: 44 PID: 6518 Comm: mem-on-off-test Not tainted 
4.4.0-34-generic #53-Ubuntu
[   57.553059] task: c0072773c8e0 ti: c0072778 task.ti: 
c0072778
[   57.553067] NIP: c029bc04 LR: c029bbdc CTR: c01107f0
[   57.553076] REGS: c00727783770 TRAP: 0300   Not tainted  
(4.4.0-34-generic)
[   57.553083] MSR: 80019033   CR: 24242882  XER: 
0002
[   57.553104] CFAR: c0008468 DAR: 0028 DSISR: 4000 
SOFTE: 1 
GPR00: c029bbdc c007277839f0 c15b5d00  
GPR04: 0029d000 0800  fa01 
GPR08: fa700020 0008 c185e270 c00e7e50 
GPR12: 2200 ce6ea200 0029d000 2200 
GPR16: 1000 c15e2200 0a70  
GPR20: 0001 0100 0200 c15f16d0 
GPR24: c1876510  0001 c1872a00 
GPR28: 0029d000 f000 fa70 0029c000 
[   57.553211] NIP [c029bc04] dissolve_free_huge_pages+0x154/0x220
[   57.553219] LR [c029bbdc] dissolve_free_huge_pages+0x12c/0x220
[   57.553226] Call Trace:
[   57.553231] [c007277839f0] [c029bbdc] 
dissolve_free_huge_pages+0x12c/0x220 (unreliable)
[   57.553244] [c00727783a80] [c02dcbc8] 
__offline_pages.constprop.6+0x3f8/0x900
[   57.553254] [c00727783bd0] [c06fbb38] 
memory_subsys_offline+0xa8/0x110
[   57.553265] [c00727783c00] [c06d6424] device_offline+0x104/0x140
[   57.553274] [c00727783c40] [c06fba80] store_mem_state+0x180/0x190
[   57.553283] [c00727783c80] [c06d1e58] dev_attr_store+0x68/0xa0
[   57.553293] [c00727783cc0] [c0398110] sysfs_kf_write+0x80/0xb0
[   57.553302] [c00727783d00] [c0397028] 
kernfs_fop_write+0x188/0x200
[   57.553312] [c00727783d50] [c02e190c] __vfs_write+0x6c/0xe0
[   57.553321] [c00727783d90] [c02e2640] vfs_write+0xc0/0x230
[   57.553329] [c00727783de0] [c02e367c] SyS_write+0x6c/0x110
[   57.553339] [c00727783e30] [c0009204] system_call+0x38/0xb4
[   57.553346] Instruction dump:
[   57.553351] 7e831836 4bfff991 e91e0028 e8fe0020 7d32e82a f9070008 f8e8 
fabe0020 
[   57.553366] fade0028 79294620 79291764 7d234a14  3908 f9030028 
81091458 
[   57.553383] ---[ end trace 617f7bdd75bcfc10 ]---
[   57.557133] 
Segmentation fault

The following commit IDs were built into a 4.10.0-37-generic #41 test
kernel and verified to fix the problem:

a525108cf1cc14651602d678da38fa627a76a724
e1073d1e7920946ac4776a619cc40668b9e1401b
40692eb5eea209c2dd55857f44b4e1d7206e91d6
e24a1307ba1f99fc62a0bd61d5e87fcfb6d5503d
79cc38ded1e1ac86e69c90f604efadd50b0b3762
4ae279c2c96ab38a78b954d218790a8f6db714e5

** Affects: linux (Ubuntu)
 Importance: Undecided
 Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage)
 Status: New


** Tags: architecture-ppc64le bugnameltc-145249 severity-high 
targetmilestone-inin16043
-- 
Ubuntu 16.10/16.04.3 - call traces occurs when memory-hotplug test is run with 
16Gb hugepages configured
https://bugs.launchpad.net/bugs/1724120
You received this bug notification because you are a member of Kernel Packages, 
which is subscribed to linux in Ubuntu.

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[Kernel-packages] [Bug 1724120] [NEW] Ubuntu 16.10/16.04.3 - call traces occurs when memory-hotplug test is run with 16Gb hugepages configured

[Kernel-packages] [Bug 1724120] [NEW] Ubuntu 16.10/16.04.3 - call traces occurs when memory-hotplug test is run with 16Gb hugepages configured

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