[Bug 1962551] Re: unshare test in ubuntu_stress_smoke_tests cause "BUG: unable to handle page fault for address" on F-oem-5.14 with Intel node vought

2022-03-14 Thread Po-Hsu Lin 
*** This bug is a duplicate of bug 1959215 ***
https://bugs.launchpad.net/bugs/1959215

** This bug has been marked a duplicate of bug 1959215
   unshare test in ubuntu_stress_smoke_tests triggers "BUG: unable to handle 
page fault for address: 1cc8" on Impish with node vought

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Title:
  unshare test in ubuntu_stress_smoke_tests cause "BUG: unable to handle
  page fault for address" on F-oem-5.14 with Intel node vought

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[Bug 1962551] Re: unshare test in ubuntu_stress_smoke_tests cause "BUG: unable to handle page fault for address" on F-oem-5.14 with Intel node vought

2022-03-01 Thread Colin Ian King 
Looks like a kernel bug and not a stress-ng issue to me.

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Title:
  unshare test in ubuntu_stress_smoke_tests cause "BUG: unable to handle
  page fault for address" on F-oem-5.14 with Intel node vought

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[Bug 1962551] Re: unshare test in ubuntu_stress_smoke_tests cause "BUG: unable to handle page fault for address" on F-oem-5.14 with Intel node vought

2022-03-01 Thread Po-Hsu Lin 
This can be found on 5.13 kernel as well, see bug 1959215

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Title:
  unshare test in ubuntu_stress_smoke_tests cause "BUG: unable to handle
  page fault for address" on F-oem-5.14 with Intel node vought

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[Bug 1962551] Re: unshare test in ubuntu_stress_smoke_tests cause "BUG: unable to handle page fault for address" on F-oem-5.14 with Intel node vought

2022-03-01 Thread Po-Hsu Lin 
Please find attachment for syslog on node vought.

** Attachment added: "syslog"
   
https://bugs.launchpad.net/ubuntu/+source/linux-oem-5.14/+bug/1962551/+attachment/5564425/+files/syslog

** Also affects: stress-ng
   Importance: Undecided
   Status: New

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Title:
  unshare test in ubuntu_stress_smoke_tests cause "BUG: unable to handle
  page fault for address" on F-oem-5.14 with Intel node vought

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[Bug 1962551] Re: unshare test in ubuntu_stress_smoke_tests cause "BUG: unable to handle page fault for address" on F-oem-5.14 with Intel node vought

2022-03-01 Thread Po-Hsu Lin 
This should not be considered as a regression as we used to run this
test on another node (spitfire).

** Description changed:

  Issue found on Focal OEM-5.14.0-1025.27 with Intel node vought
  
  The sut will stop responding after this, and the test will be killed in
  the end with the test timeout setting.
+ 
+ stress-ng test suite HEAD SHA1: 48be8ff
  
  Mar  1 09:07:00 vought stress-ng: system: 'vought' Linux 5.14.0-1025-oem 
#27-Ubuntu SMP Thu Feb 24 09:13:19 UTC 2022 x86_64
  Mar  1 09:07:00 vought stress-ng: memory (MB): total 359934.79, free 
353583.48, shared 2.77, buffer 238.38, swap 9215.99, free swap 9214.70
  Mar  1 09:07:00 vought stress-ng: info:  [195104] setting to a 5 second run 
per stressor
  Mar  1 09:07:00 vought stress-ng: info:  [195104] dispatching hogs: 4 unshare
  Mar  1 09:07:00 vought kernel: [ 1061.465476] BUG: unable to handle page 
fault for address: 1cc8
  Mar  1 09:07:00 vought kernel: [ 1061.465554] #PF: supervisor read access in 
kernel mode
  Mar  1 09:07:00 vought kernel: [ 1061.465596] #PF: error_code(0x) - 
not-present page
- Mar  1 09:07:00 vought kernel: [ 1061.465637] PGD 0 P4D 0 
+ Mar  1 09:07:00 vought kernel: [ 1061.465637] PGD 0 P4D 0
  Mar  1 09:07:00 vought kernel: [ 1061.465663] Oops:  [#1] SMP NOPTI
  Mar  1 09:07:00 vought kernel: [ 1061.465698] CPU: 85 PID: 196061 Comm: 
stress-ng Tainted: P   O  5.14.0-1025-oem #27-Ubuntu
  Mar  1 09:07:00 vought kernel: [ 1061.465771] Hardware name: Intel 
Corporation S2600WFD/S2600WFD, BIOS SE5C620.86B.0D.01.0395.022720191340 
02/27/2019
  Mar  1 09:07:00 vought kernel: [ 1061.465846] RIP: 
0010:__alloc_pages+0x125/0x310
  Mar  1 09:07:00 vought kernel: [ 1061.465895] Code: ff ff 84 c0 0f 85 1b 01 
00 00 44 89 e0 48 8b 55 b0 8b 75 c4 c1 e8 0c 48 8b 7d a8 83 e0 01 88 45 c8 48 
85 d2 0f 85 3e 01 00 00 <3b> 77 08 0f 82 35 01 00 00 48 89 7d b8 48 8b 07 44 89 
e2 81 e2 00
  Mar  1 09:07:00 vought kernel: [ 1061.466030] RSP: 0018:b66fac707b50 
EFLAGS: 00010246
  Mar  1 09:07:00 vought kernel: [ 1061.466074] RAX:  RBX: 
 RCX: 
  Mar  1 09:07:00 vought kernel: [ 1061.466128] RDX:  RSI: 
0002 RDI: 1cc0
  Mar  1 09:07:00 vought kernel: [ 1061.466182] RBP: b66fac707ba8 R08: 
 R09: 
  Mar  1 09:07:00 vought kernel: [ 1061.466236] R10: 0002 R11: 
94438d0bb730 R12: 00052cc0
  Mar  1 09:07:00 vought kernel: [ 1061.466290] R13: 0002 R14: 
00052cc0 R15: 0001
  Mar  1 09:07:00 vought kernel: [ 1061.466343] FS:  7fbf1cef5380() 
GS:94438d08() knlGS:
  Mar  1 09:07:00 vought kernel: [ 1061.466406] CS:  0010 DS:  ES:  
CR0: 80050033
  Mar  1 09:07:00 vought kernel: [ 1061.466452] CR2: 1cc8 CR3: 
00bd8869a002 CR4: 007706e0
  Mar  1 09:07:00 vought kernel: [ 1061.466508] DR0:  DR1: 
 DR2: 
  Mar  1 09:07:00 vought kernel: [ 1061.466562] DR3:  DR6: 
fffe0ff0 DR7: 0400
  Mar  1 09:07:00 vought kernel: [ 1061.466616] PKRU: 5554
  Mar  1 09:07:00 vought kernel: [ 1061.466640] Call Trace:
  Mar  1 09:07:00 vought kernel: [ 1061.42]  
  Mar  1 09:07:00 vought kernel: [ 1061.466687]  kmalloc_large_node+0x45/0xb0
  Mar  1 09:07:00 vought kernel: [ 1061.466729]  __kmalloc_node+0x430/0x4f0
  Mar  1 09:07:00 vought kernel: [ 1061.466766]  ? 
queue_delayed_work_on+0x36/0x50
  Mar  1 09:07:00 vought kernel: [ 1061.466810]  kvmalloc_node+0x5c/0x90
  Mar  1 09:07:00 vought kernel: [ 1061.466843]  expand_shrinker_info+0xfa/0x230
  Mar  1 09:07:00 vought kernel: [ 1061.466884]  prealloc_shrinker+0xba/0x100
  Mar  1 09:07:00 vought kernel: [ 1061.468360]  alloc_super+0x2c3/0x340
  Mar  1 09:07:00 vought kernel: [ 1061.469786]  ? __fput_sync+0x30/0x30
  Mar  1 09:07:00 vought kernel: [ 1061.471204]  sget_fc+0x74/0x2e0
  Mar  1 09:07:00 vought kernel: [ 1061.472564]  ? compare_single+0x10/0x10
  Mar  1 09:07:00 vought kernel: [ 1061.473880]  ? mqueue_create+0x20/0x20
  Mar  1 09:07:00 vought kernel: [ 1061.475139]  vfs_get_super+0x3d/0x100
  Mar  1 09:07:00 vought kernel: [ 1061.476351]  get_tree_keyed+0x1d/0x20
  Mar  1 09:07:00 vought kernel: [ 1061.477314]  mqueue_get_tree+0x1c/0x20
  Mar  1 09:07:00 vought kernel: [ 1061.478060]  vfs_get_tree+0x2a/0xc0
  Mar  1 09:07:00 vought kernel: [ 1061.478791]  fc_mount+0x13/0x50
  Mar  1 09:07:00 vought kernel: [ 1061.479522]  mq_create_mount+0xd9/0x160
  Mar  1 09:07:00 vought kernel: [ 1061.480260]  mq_init_ns+0x3b/0x50
  Mar  1 09:07:00 vought kernel: [ 1061.481004]  copy_ipcs+0x138/0x230
  Mar  1 09:07:00 vought kernel: [ 1061.481754]  
create_new_namespaces.isra.0+0x9a/0x2b0
  Mar  1 09:07:00 vought kernel: [ 1061.482527]  
unshare_nsproxy_namespaces+0x61/0xb0
  Mar  1 09:07:00 vought kernel: [ 1061.483306]  ksys_unshare+0x1ea/0x3d0