[Kernel-packages] [Bug 2007908] Re: [Possible Regression] powerpc/tm:tm-resched-dscr in ubuntu_kernel_selftests failed on P8

2023-02-22 Thread Po-Hsu Lin
stress tested with 5.15.0-60-generic, there are 20 failures reported in
100 attempts.

So it looks like a flaky test instead of a regression. I was too lucky
to get multiple failures in a row.

** Attachment added: "stress-with-60.log"
   
https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/2007908/+attachment/5649156/+files/stress-with-60.log

** Summary changed:

- [Possible Regression] powerpc/tm:tm-resched-dscr in ubuntu_kernel_selftests 
failed on P8
+ powerpc/tm:tm-resched-dscr in ubuntu_kernel_selftests flaky on P8 node gulpin

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Title:
  powerpc/tm:tm-resched-dscr in ubuntu_kernel_selftests flaky on P8 node
  gulpin

Status in ubuntu-kernel-tests:
  New
Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Issue found with Focal hwe-5.15.0-66.73~20.04.1 on Power8 node
  "gulpin".

  Test failed with:
    test: tm_resched_dscr
    tags: git_version:bfd31f0-dirty
    Binding to cpu 8
    main test running as pid 2542
    Check DSCR TM context switch:
    !! killing tm_resched_dscr
    !! child died by signal 15
    failure: tm_resched_dscr

  Nothing interesting in dmesg / syslog:
  $ dmesg | tail
  [   20.556968] IPv6: ADDRCONF(NETDEV_CHANGE): enP34p1s0f0: link becomes ready
  [   20.572182] tg3 0022:01:00.2 enP34p1s0f2: Link is up at 1000 Mbps, full 
duplex
  [   20.572187] tg3 0022:01:00.2 enP34p1s0f2: Flow control is off for TX and 
off for RX
  [   20.572191] tg3 0022:01:00.2 enP34p1s0f2: EEE is disabled
  [   20.572201] IPv6: ADDRCONF(NETDEV_CHANGE): enP34p1s0f2: link becomes ready
  [   24.598633] kauditd_printk_skb: 19 callbacks suppressed
  [   24.598640] audit: type=1400 audit(1676957767.768:31): apparmor="DENIED" 
operation="open" profile="/usr/sbin/ntpd" name="/snap/bin/" pid=2171 
comm="ntpd" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
  [   27.682671] loop3: detected capacity change from 0 to 8
  [   28.618195] fbcon: Taking over console
  [   28.747706] Console: switching to colour frame buffer device 128x48

  This issue does not exist with 5.15.0-60.66~20.04.1
    test: tm_resched_dscr
    tags: git_version:bfd31f0-dirty
    Binding to cpu 8
    main test running as pid 28806
    Check DSCR TM context switch:  OK
    success: tm_resched_dscr

  We didn't catch this issue in Jammy 5.15 as Power8 was not supported
  there, and this test was skipped on the Power9 node that got tested
  with Jammy (looks like because of the lack of PPC_FEATURE2_HTM)

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[Kernel-packages] [Bug 2007908] Re: [Possible Regression] powerpc/tm:tm-resched-dscr in ubuntu_kernel_selftests failed on P8

2023-02-22 Thread Po-Hsu Lin
Here is the test output with -66.

** Attachment added: "stress-with-66.log"
   
https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/2007908/+attachment/5649138/+files/stress-with-66.log

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https://bugs.launchpad.net/bugs/2007908

Title:
  [Possible Regression] powerpc/tm:tm-resched-dscr in
  ubuntu_kernel_selftests failed on P8

Status in ubuntu-kernel-tests:
  New
Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Issue found with Focal hwe-5.15.0-66.73~20.04.1 on Power8 node
  "gulpin".

  Test failed with:
    test: tm_resched_dscr
    tags: git_version:bfd31f0-dirty
    Binding to cpu 8
    main test running as pid 2542
    Check DSCR TM context switch:
    !! killing tm_resched_dscr
    !! child died by signal 15
    failure: tm_resched_dscr

  Nothing interesting in dmesg / syslog:
  $ dmesg | tail
  [   20.556968] IPv6: ADDRCONF(NETDEV_CHANGE): enP34p1s0f0: link becomes ready
  [   20.572182] tg3 0022:01:00.2 enP34p1s0f2: Link is up at 1000 Mbps, full 
duplex
  [   20.572187] tg3 0022:01:00.2 enP34p1s0f2: Flow control is off for TX and 
off for RX
  [   20.572191] tg3 0022:01:00.2 enP34p1s0f2: EEE is disabled
  [   20.572201] IPv6: ADDRCONF(NETDEV_CHANGE): enP34p1s0f2: link becomes ready
  [   24.598633] kauditd_printk_skb: 19 callbacks suppressed
  [   24.598640] audit: type=1400 audit(1676957767.768:31): apparmor="DENIED" 
operation="open" profile="/usr/sbin/ntpd" name="/snap/bin/" pid=2171 
comm="ntpd" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
  [   27.682671] loop3: detected capacity change from 0 to 8
  [   28.618195] fbcon: Taking over console
  [   28.747706] Console: switching to colour frame buffer device 128x48

  This issue does not exist with 5.15.0-60.66~20.04.1
    test: tm_resched_dscr
    tags: git_version:bfd31f0-dirty
    Binding to cpu 8
    main test running as pid 28806
    Check DSCR TM context switch:  OK
    success: tm_resched_dscr

  We didn't catch this issue in Jammy 5.15 as Power8 was not supported
  there, and this test was skipped on the Power9 node that got tested
  with Jammy (looks like because of the lack of PPC_FEATURE2_HTM)

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[Kernel-packages] [Bug 2007908] Re: [Possible Regression] powerpc/tm:tm-resched-dscr in ubuntu_kernel_selftests failed on P8

2023-02-22 Thread Po-Hsu Lin
stress tested with the following command on node gulpin with -66 shows
this test is a bit flaky:

failcnt=0
for i in `seq 1 100`; do
   time sudo ./tm-resched-dscr
   if [ $? -ne 0 ]; then
let "failcnt=$failcnt+1"
   fi
done
echo $failcnt

There are 27 failures in 100 attempts.

Next is to stress test with -60

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https://bugs.launchpad.net/bugs/2007908

Title:
  [Possible Regression] powerpc/tm:tm-resched-dscr in
  ubuntu_kernel_selftests failed on P8

Status in ubuntu-kernel-tests:
  New
Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Issue found with Focal hwe-5.15.0-66.73~20.04.1 on Power8 node
  "gulpin".

  Test failed with:
    test: tm_resched_dscr
    tags: git_version:bfd31f0-dirty
    Binding to cpu 8
    main test running as pid 2542
    Check DSCR TM context switch:
    !! killing tm_resched_dscr
    !! child died by signal 15
    failure: tm_resched_dscr

  Nothing interesting in dmesg / syslog:
  $ dmesg | tail
  [   20.556968] IPv6: ADDRCONF(NETDEV_CHANGE): enP34p1s0f0: link becomes ready
  [   20.572182] tg3 0022:01:00.2 enP34p1s0f2: Link is up at 1000 Mbps, full 
duplex
  [   20.572187] tg3 0022:01:00.2 enP34p1s0f2: Flow control is off for TX and 
off for RX
  [   20.572191] tg3 0022:01:00.2 enP34p1s0f2: EEE is disabled
  [   20.572201] IPv6: ADDRCONF(NETDEV_CHANGE): enP34p1s0f2: link becomes ready
  [   24.598633] kauditd_printk_skb: 19 callbacks suppressed
  [   24.598640] audit: type=1400 audit(1676957767.768:31): apparmor="DENIED" 
operation="open" profile="/usr/sbin/ntpd" name="/snap/bin/" pid=2171 
comm="ntpd" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
  [   27.682671] loop3: detected capacity change from 0 to 8
  [   28.618195] fbcon: Taking over console
  [   28.747706] Console: switching to colour frame buffer device 128x48

  This issue does not exist with 5.15.0-60.66~20.04.1
    test: tm_resched_dscr
    tags: git_version:bfd31f0-dirty
    Binding to cpu 8
    main test running as pid 28806
    Check DSCR TM context switch:  OK
    success: tm_resched_dscr

  We didn't catch this issue in Jammy 5.15 as Power8 was not supported
  there, and this test was skipped on the Power9 node that got tested
  with Jammy (looks like because of the lack of PPC_FEATURE2_HTM)

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 2007908] Re: [Possible Regression] powerpc/tm:tm-resched-dscr in ubuntu_kernel_selftests failed on P8

2023-02-21 Thread Po-Hsu Lin
** Description changed:

  Issue found with Focal hwe-5.15.0-66.73~20.04.1 on Power8 node "gulpin".
  
  Test failed with:
    test: tm_resched_dscr
    tags: git_version:bfd31f0-dirty
    Binding to cpu 8
    main test running as pid 2542
    Check DSCR TM context switch:
    !! killing tm_resched_dscr
    !! child died by signal 15
    failure: tm_resched_dscr
  
  Nothing interesting in dmesg / syslog:
  $ dmesg | tail
  [   20.556968] IPv6: ADDRCONF(NETDEV_CHANGE): enP34p1s0f0: link becomes ready
  [   20.572182] tg3 0022:01:00.2 enP34p1s0f2: Link is up at 1000 Mbps, full 
duplex
  [   20.572187] tg3 0022:01:00.2 enP34p1s0f2: Flow control is off for TX and 
off for RX
  [   20.572191] tg3 0022:01:00.2 enP34p1s0f2: EEE is disabled
  [   20.572201] IPv6: ADDRCONF(NETDEV_CHANGE): enP34p1s0f2: link becomes ready
  [   24.598633] kauditd_printk_skb: 19 callbacks suppressed
  [   24.598640] audit: type=1400 audit(1676957767.768:31): apparmor="DENIED" 
operation="open" profile="/usr/sbin/ntpd" name="/snap/bin/" pid=2171 
comm="ntpd" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
  [   27.682671] loop3: detected capacity change from 0 to 8
  [   28.618195] fbcon: Taking over console
  [   28.747706] Console: switching to colour frame buffer device 128x48
  
  This issue does not exist with 5.15.0-60.66~20.04.1
    test: tm_resched_dscr
    tags: git_version:bfd31f0-dirty
    Binding to cpu 8
    main test running as pid 28806
    Check DSCR TM context switch:  OK
    success: tm_resched_dscr
  
- We didn't see this issue in Jammy 5.15 as Power8 was not supported
- there, and this test was skipped on the Power9 node (looks like because
- of the lack of PPC_FEATURE2_HTM)
+ We didn't catch this issue in Jammy 5.15 as Power8 was not supported
+ there, and this test was skipped on the Power9 node that got tested with
+ Jammy (looks like because of the lack of PPC_FEATURE2_HTM)

-- 
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/2007908

Title:
  [Possible Regression] powerpc/tm:tm-resched-dscr in
  ubuntu_kernel_selftests failed on P8

Status in ubuntu-kernel-tests:
  New
Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Issue found with Focal hwe-5.15.0-66.73~20.04.1 on Power8 node
  "gulpin".

  Test failed with:
    test: tm_resched_dscr
    tags: git_version:bfd31f0-dirty
    Binding to cpu 8
    main test running as pid 2542
    Check DSCR TM context switch:
    !! killing tm_resched_dscr
    !! child died by signal 15
    failure: tm_resched_dscr

  Nothing interesting in dmesg / syslog:
  $ dmesg | tail
  [   20.556968] IPv6: ADDRCONF(NETDEV_CHANGE): enP34p1s0f0: link becomes ready
  [   20.572182] tg3 0022:01:00.2 enP34p1s0f2: Link is up at 1000 Mbps, full 
duplex
  [   20.572187] tg3 0022:01:00.2 enP34p1s0f2: Flow control is off for TX and 
off for RX
  [   20.572191] tg3 0022:01:00.2 enP34p1s0f2: EEE is disabled
  [   20.572201] IPv6: ADDRCONF(NETDEV_CHANGE): enP34p1s0f2: link becomes ready
  [   24.598633] kauditd_printk_skb: 19 callbacks suppressed
  [   24.598640] audit: type=1400 audit(1676957767.768:31): apparmor="DENIED" 
operation="open" profile="/usr/sbin/ntpd" name="/snap/bin/" pid=2171 
comm="ntpd" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
  [   27.682671] loop3: detected capacity change from 0 to 8
  [   28.618195] fbcon: Taking over console
  [   28.747706] Console: switching to colour frame buffer device 128x48

  This issue does not exist with 5.15.0-60.66~20.04.1
    test: tm_resched_dscr
    tags: git_version:bfd31f0-dirty
    Binding to cpu 8
    main test running as pid 28806
    Check DSCR TM context switch:  OK
    success: tm_resched_dscr

  We didn't catch this issue in Jammy 5.15 as Power8 was not supported
  there, and this test was skipped on the Power9 node that got tested
  with Jammy (looks like because of the lack of PPC_FEATURE2_HTM)

To manage notifications about this bug go to:
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[Kernel-packages] [Bug 2007908] Re: [Possible Regression] powerpc/tm:tm-resched-dscr in ubuntu_kernel_selftests failed on P8

2023-02-21 Thread Stefan Bader
** Description changed:

- Issue found with J-hwe-5.15.0-66.73~20.04.1 on Power8 node "gulpin".
+ Issue found with Focal hwe-5.15.0-66.73~20.04.1 on Power8 node "gulpin".
  
  Test failed with:
-   test: tm_resched_dscr
-   tags: git_version:bfd31f0-dirty
-   Binding to cpu 8
-   main test running as pid 2542
-   Check DSCR TM context switch: 
-   !! killing tm_resched_dscr
-   !! child died by signal 15
-   failure: tm_resched_dscr
+   test: tm_resched_dscr
+   tags: git_version:bfd31f0-dirty
+   Binding to cpu 8
+   main test running as pid 2542
+   Check DSCR TM context switch:
+   !! killing tm_resched_dscr
+   !! child died by signal 15
+   failure: tm_resched_dscr
  
  Nothing interesting in dmesg / syslog:
  $ dmesg | tail
  [   20.556968] IPv6: ADDRCONF(NETDEV_CHANGE): enP34p1s0f0: link becomes ready
  [   20.572182] tg3 0022:01:00.2 enP34p1s0f2: Link is up at 1000 Mbps, full 
duplex
  [   20.572187] tg3 0022:01:00.2 enP34p1s0f2: Flow control is off for TX and 
off for RX
  [   20.572191] tg3 0022:01:00.2 enP34p1s0f2: EEE is disabled
  [   20.572201] IPv6: ADDRCONF(NETDEV_CHANGE): enP34p1s0f2: link becomes ready
  [   24.598633] kauditd_printk_skb: 19 callbacks suppressed
  [   24.598640] audit: type=1400 audit(1676957767.768:31): apparmor="DENIED" 
operation="open" profile="/usr/sbin/ntpd" name="/snap/bin/" pid=2171 
comm="ntpd" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
  [   27.682671] loop3: detected capacity change from 0 to 8
  [   28.618195] fbcon: Taking over console
  [   28.747706] Console: switching to colour frame buffer device 128x48
  
- 
- This issue does not exist with 5.15.0-60.66~20.04.1 
-   test: tm_resched_dscr
-   tags: git_version:bfd31f0-dirty
-   Binding to cpu 8
-   main test running as pid 28806
-   Check DSCR TM context switch:  OK
-   success: tm_resched_dscr
+ This issue does not exist with 5.15.0-60.66~20.04.1
+   test: tm_resched_dscr
+   tags: git_version:bfd31f0-dirty
+   Binding to cpu 8
+   main test running as pid 28806
+   Check DSCR TM context switch:  OK
+   success: tm_resched_dscr
  
  We didn't see this issue in Jammy 5.15 as Power8 was not supported
  there, and this test was skipped on the Power9 node (looks like because
  of the lack of PPC_FEATURE2_HTM)

-- 
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/2007908

Title:
  [Possible Regression] powerpc/tm:tm-resched-dscr in
  ubuntu_kernel_selftests failed on P8

Status in ubuntu-kernel-tests:
  New
Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Issue found with Focal hwe-5.15.0-66.73~20.04.1 on Power8 node
  "gulpin".

  Test failed with:
    test: tm_resched_dscr
    tags: git_version:bfd31f0-dirty
    Binding to cpu 8
    main test running as pid 2542
    Check DSCR TM context switch:
    !! killing tm_resched_dscr
    !! child died by signal 15
    failure: tm_resched_dscr

  Nothing interesting in dmesg / syslog:
  $ dmesg | tail
  [   20.556968] IPv6: ADDRCONF(NETDEV_CHANGE): enP34p1s0f0: link becomes ready
  [   20.572182] tg3 0022:01:00.2 enP34p1s0f2: Link is up at 1000 Mbps, full 
duplex
  [   20.572187] tg3 0022:01:00.2 enP34p1s0f2: Flow control is off for TX and 
off for RX
  [   20.572191] tg3 0022:01:00.2 enP34p1s0f2: EEE is disabled
  [   20.572201] IPv6: ADDRCONF(NETDEV_CHANGE): enP34p1s0f2: link becomes ready
  [   24.598633] kauditd_printk_skb: 19 callbacks suppressed
  [   24.598640] audit: type=1400 audit(1676957767.768:31): apparmor="DENIED" 
operation="open" profile="/usr/sbin/ntpd" name="/snap/bin/" pid=2171 
comm="ntpd" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
  [   27.682671] loop3: detected capacity change from 0 to 8
  [   28.618195] fbcon: Taking over console
  [   28.747706] Console: switching to colour frame buffer device 128x48

  This issue does not exist with 5.15.0-60.66~20.04.1
    test: tm_resched_dscr
    tags: git_version:bfd31f0-dirty
    Binding to cpu 8
    main test running as pid 28806
    Check DSCR TM context switch:  OK
    success: tm_resched_dscr

  We didn't catch this issue in Jammy 5.15 as Power8 was not supported
  there, and this test was skipped on the Power9 node that got tested
  with Jammy (looks like because of the lack of PPC_FEATURE2_HTM)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/2007908/+subscriptions


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