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[Bug 1905438] Re: uprobe from ubuntu_stress_smoke_test ADT test failure with linux 4.15.0-125.128

To: canonical-ubuntu-qa@xxxxxxxxxxxxxxxxxxx
From: Jürg Häfliger <1905438@xxxxxxxxxxxxxxxxxx>
Date: Sat, 19 Apr 2025 01:08:13 -0000
Reply-to: Bug 1905438 <1905438@xxxxxxxxxxxxxxxxxx>
Sender: noreply@xxxxxxxxxxxxx
** Tags added: kernel-daily-bug

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https://bugs.launchpad.net/bugs/1905438

Title:
  uprobe from ubuntu_stress_smoke_test ADT test failure with linux
  4.15.0-125.128

Status in ubuntu-kernel-tests:
  Fix Released
Status in linux package in Ubuntu:
  Invalid
Status in linux source package in Bionic:
  Invalid

Bug description:
  Testing failed only on s390x:
      s390x: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-bionic/bionic/s390x/l/linux/20201124_104202_cdb22@/log.gz

  This is not a kernel regression as this testcase is failing since 4.15.0-123.126:
  https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-bionic/bionic/s390x/l/linux/20201110_224317_a6349@/log.gz

  Error messages:

  10:28:59 DEBUG| [stdout] uprobe STARTING
  10:29:04 DEBUG| [stdout] uprobe RETURNED 2
  10:29:04 DEBUG| [stdout] uprobe FAILED
  10:29:04 DEBUG| [stdout] stress-ng: debug: [32257] 4 processors online, 4 processors configured
  10:29:04 DEBUG| [stdout] stress-ng: info:  [32257] dispatching hogs: 4 uprobe
  10:29:04 DEBUG| [stdout] stress-ng: debug: [32257] cache allocate: reducing cache level from L3 (too high) to L2
  10:29:04 DEBUG| [stdout] stress-ng: debug: [32257] cache allocate: default cache size: 2048K
  10:29:04 DEBUG| [stdout] stress-ng: debug: [32257] starting stressors
  10:29:04 DEBUG| [stdout] stress-ng: debug: [32258] stress-ng-uprobe: started [32258] (instance 0)
  10:29:04 DEBUG| [stdout] stress-ng: debug: [32259] stress-ng-uprobe: started [32259] (instance 1)
  10:29:04 DEBUG| [stdout] stress-ng: debug: [32257] 4 stressors started
  10:29:04 DEBUG| [stdout] stress-ng: debug: [32260] stress-ng-uprobe: started [32260] (instance 2)
  10:29:04 DEBUG| [stdout] stress-ng: debug: [32261] stress-ng-uprobe: started [32261] (instance 3)
  10:29:04 DEBUG| [stdout] stress-ng: debug: [32258] stress-ng-uprobe: exited [32258] (instance 0)
  10:29:04 DEBUG| [stdout] stress-ng: debug: [32259] stress-ng-uprobe: exited [32259] (instance 1)
  10:29:04 DEBUG| [stdout] stress-ng: debug: [32257] process [32258] terminated
  10:29:04 DEBUG| [stdout] stress-ng: debug: [32257] process [32259] terminated
  10:29:04 DEBUG| [stdout] stress-ng: debug: [32261] stress-ng-uprobe: exited [32261] (instance 3)
  10:29:04 DEBUG| [stdout] stress-ng: debug: [32257] process [32260] (stress-ng-uprobe) terminated on signal: 11 (Segmentation fault)
  10:29:04 DEBUG| [stdout] stress-ng: debug: [32257] process [32260] terminated
  10:29:04 DEBUG| [stdout] stress-ng: debug: [32257] process [32261] terminated
  10:29:04 DEBUG| [stdout] stress-ng: info:  [32257] unsuccessful run completed in 5.34s
  10:29:04 DEBUG| [stdout] stress-ng: fail:  [32257] uprobe instance 2 corrupted bogo-ops counter, 6504 vs 0
  10:29:04 DEBUG| [stdout] stress-ng: fail:  [32257] uprobe instance 2 hash error in bogo-ops counter and run flag, 2373967644 vs 0
  10:29:04 DEBUG| [stdout] stress-ng: fail:  [32257] metrics-check: stressor metrics corrupted, data is compromised
  10:29:04 DEBUG| [stdout]
  10:29:04 DEBUG| [stdout] [ 4486.773524] User process fault: interruption code 003a ilc:2
  10:29:04 DEBUG| [stdout] [ 4486.773533] Failing address: 000006a9bcaae000 TEID: 000006a9bcaae800
  10:29:04 DEBUG| [stdout] [ 4486.773535] Fault in primary space mode while using user ASCE.
  10:29:04 DEBUG| [stdout] [ 4486.773538] AS:000000009ac501cf R1:000000016513400f R2:0000000000000028
  10:29:04 DEBUG| [stdout] [ 4486.773545] CPU: 0 PID: 32260 Comm: stress-ng-uprob Tainted: G           OE    4.15.0-125-generic #128-Ubuntu
  10:29:04 DEBUG| [stdout] [ 4486.773547] Hardware name: IBM 2964 N63 400 (KVM/Linux)
  10:29:04 DEBUG| [stdout] [ 4486.773549] User PSW : 000000002ed46a88 00000000bdaa9281
  10:29:04 DEBUG| [stdout] [ 4486.773551]            R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:1 AS:0 CC:0 PM:0 RI:0 EA:3
  10:29:04 DEBUG| [stdout] [ 4486.773553] User GPRS: 8080808080808080 000003ffba844b90 0000000000007e04 000003ffe4f7e530
  10:29:04 DEBUG| [stdout] [ 4486.773554]            000002aa00000001 0000000000000000 000003ffe4f7b200 000003ffe4f7b290
  10:29:04 DEBUG| [stdout] [ 4486.773556]            000003ffe4f7e530 000003ffe4f7d310 000003ffe4f7e518 000003ff00000013
  10:29:04 DEBUG| [stdout] [ 4486.773557]            000003ffbaea6000 000003ffe4f7c310 000002aa02268520 000003ffe4f7b0f8
  10:29:04 DEBUG| [stdout] [ 4486.773562] User Code: Bad PSW.
  10:29:04 DEBUG| [stdout] [ 4486.773562] Last Breaking-Event-Address:
  10:29:04 DEBUG| [stdout] [ 4486.773570]  [<00000000008ff404>] system_call+0x128/0x2c8
  10:29:04 DEBUG| [stdout] [ 4486.796258] User process fault: interruption code 003a ilc:2
  10:29:04 DEBUG| [stdout] [ 4486.796262] Failing address: 000007ff75aad000 TEID: 000007ff75aad800
  10:29:04 DEBUG| [stdout] [ 4486.796263] Fault in primary space mode while using user ASCE.
  10:29:04 DEBUG| [stdout] [ 4486.796265] AS:000000008a3341cf R1:000000011103800f R2:0000000000000028
  10:29:04 DEBUG| [stdout] [ 4486.796269] CPU: 3 PID: 32268 Comm: gdb Tainted: G           OE    4.15.0-125-generic #128-Ubuntu
  10:29:04 DEBUG| [stdout] [ 4486.796270] Hardware name: IBM 2964 N63 400 (KVM/Linux)
  10:29:04 DEBUG| [stdout] [ 4486.796271] User PSW : 000000002ed46a88 0000000046f25e5c
  10:29:04 DEBUG| [stdout] [ 4486.796273]            R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:1 AS:0 CC:0 PM:0 RI:0 EA:3
  10:29:04 DEBUG| [stdout] [ 4486.796274] User GPRS: 0000000000000000 000003ffba944b90 0000000000007e0c 000003ffbb1c0892
  10:29:04 DEBUG| [stdout] [ 4486.796275]            0000000000000006 000003ffbb2ff3a0 000000000000008e 000003ffbb6f34f8
  10:29:04 DEBUG| [stdout] [ 4486.796276]            000003ffbb5dfa90 000002aa41162670 000003ffbb6aafb0 000003ffbb6aaf80
  10:29:04 DEBUG| [stdout] [ 4486.796277]            000003ffbb726000 000003ffbb5c31f8 000003ffbb167072 000003fffb77d0e8
  10:29:04 DEBUG| [stdout] [ 4486.796279] User Code: Bad PSW.
  10:29:04 DEBUG| [stdout] [ 4486.796279] Last Breaking-Event-Address:
  10:29:04 DEBUG| [stdout] [ 4486.796282]  [<00000000008ff404>] system_call+0x128/0x2c8
  10:29:04 DEBUG| [stdout] [ 4486.796292] Process 32268(gdb) has RLIMIT_CORE set to 1
  10:29:04 DEBUG| [stdout] [ 4486.796292] Aborting core

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