[P9,POwer NV][WSP][DD2.1][Ubuntu 1804][Perf fuzzer] : Call trace is seen while running perf fuzzer (perf:)
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
The Ubuntu-power-systems project |
Invalid
|
High
|
Canonical Kernel Team | ||
linux (Ubuntu) |
Invalid
|
High
|
Canonical Kernel Team | ||
Bionic |
Invalid
|
High
|
Canonical Kernel Team |
Bug Description
== Comment: #0 - Shriya R. Kulkarni <email address hidden> - 2018-02-02 01:21:36 ==
Problem Description :
=============
Warn on message is seen while running perf fuzzer tests.
Machine details :
==========
Hardware : Witherspoon (wsp12) + DD2.1
OS : Ubuntu 1804
uname -a : 4.13.0-32-generic #35~lp1746225 ( Kernel from the bug : https:/
Steps to reproduce :
============
Build Kernel :
-------
To avoid the kernel crash due to Perf fuzzer , use the kernel mentioned in the link : https:/
#! /bin/bash
set -x
git clone https:/
cd perf_event_
mkdir asm
cd asm
wget http://
cd ../../lib
make
sleep 10
cd ../fuzzer
make
sleep 10
echo 0 > /proc/sys/
echo 2 > /proc/sys/
echo 100000 > /proc/sys/
./perf_fuzzer -r 1492143527
Call trace :
=======
[ 329.228031] ------------[ cut here ]------------
[ 329.228039] WARNING: CPU: 43 PID: 9088 at /home/jsalisbur
[ 329.228040] Modules linked in: ofpart at24 uio_pdrv_genirq uio cmdlinepart powernv_flash mtd ipmi_powernv vmx_crypto ipmi_devintf ipmi_msghandler ibmpowernv opal_prd crct10dif_vpmsum sch_fq_codel ip_tables x_tables autofs4 crc32c_vpmsum lpfc ast i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt mlx5_core fb_sys_fops ttm tg3 nvmet_fc drm ahci nvmet nvme_fc libahci nvme_fabrics mlxfw nvme_core devlink scsi_transport_fc
[ 329.228068] CPU: 43 PID: 9088 Comm: perf_fuzzer Not tainted 4.13.0-32-generic #35~lp1746225
[ 329.228070] task: c000003f776ac900 task.stack: c000003f77728000
[ 329.228071] NIP: c000000000299b70 LR: c0000000002a4534 CTR: c00000000029bb80
[ 329.228073] REGS: c000003f7772b760 TRAP: 0700 Not tainted (4.13.0-32-generic)
[ 329.228073] MSR: 900000000282b033 <SF,HV,
[ 329.228079] CR: 24008822 XER: 00000000
[ 329.228080] CFAR: c000000000299a70 SOFTE: 0
[ 329.228098] NIP [c000000000299b70] perf_pmu_
[ 329.228100] LR [c0000000002a4534] __perf_
[ 329.228101] Call Trace:
[ 329.228102] [c000003f7772b9e0] [c0000000002a0678] perf_iterate_
[ 329.228105] [c000003f7772ba30] [c0000000002a4534] __perf_
[ 329.228107] [c000003f7772bab0] [c0000000001396dc] finish_
[ 329.228109] [c000003f7772bb60] [c000000000c71354] __schedule+
[ 329.228111] [c000003f7772bc40] [c000000000c71c10] schedule+0x40/0xc0
[ 329.228113] [c000003f7772bc60] [c0000000001033f4] do_wait+0x254/0x2e0
[ 329.228115] [c000003f7772bcd0] [c000000000104ac0] kernel_
[ 329.228117] [c000003f7772bd70] [c000000000104c24] SyS_wait4+0x64/0xc0
[ 329.228121] [c000003f7772be30] [c00000000000b184] system_
[ 329.228121] Instruction dump:
[ 329.228123] 3beafea0 7faa4800 409eff18 e8010060 eb610028 ebc10040 7c0803a6 38210050
[ 329.228127] eb81ffe0 eba1ffe8 ebe1fff8 4e800020 <0fe00000> 4bffffbc 60000000 60420000
[ 329.228131] ---[ end trace 8c46856d314c1811 ]---
[ 375.755943] hrtimer: interrupt took 31601 ns
== Comment: #4 - SEETEENA THOUFEEK <email address hidden> - 2018-02-05 06:34:09 ==
== Comment: #5 - SEETEENA THOUFEEK <email address hidden> - 2018-02-05 06:36:12 ==
We have similar issue reported on different distro where Anju Provided the patch. Patch attached above.
.
Will check with her if that patch got accepted upstream
== Comment: #14 - SEETEENA THOUFEEK <email address hidden> - 2018-02-23 01:52:50 ==
affects: | kernel-package (Ubuntu) → linux (Ubuntu) |
Changed in ubuntu-power-systems: | |
importance: | Undecided → High |
Changed in linux (Ubuntu): | |
importance: | Undecided → High |
status: | New → Triaged |
tags: | added: kernel-da-key |
Changed in linux (Ubuntu Bionic): | |
assignee: | Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) → Canonical Kernel Team (canonical-kernel-team) |
Changed in linux (Ubuntu): | |
status: | Triaged → Fix Released |
Changed in linux (Ubuntu Bionic): | |
status: | Triaged → Fix Released |
Changed in ubuntu-power-systems: | |
status: | Incomplete → Fix Released |
Changed in linux (Ubuntu): | |
status: | Fix Released → In Progress |
Changed in linux (Ubuntu Bionic): | |
status: | Fix Released → In Progress |
Changed in ubuntu-power-systems: | |
status: | Fix Released → In Progress |
Changed in ubuntu-power-systems: | |
status: | Incomplete → In Progress |
Changed in ubuntu-power-systems: | |
status: | Incomplete → In Progress |
status: | In Progress → Incomplete |
tags: | added: cscc |
Default Comment by Bridge