linux-kernel - [fsnotify] 9b93f33105: WARNING:missing_R10_value_at__fsnotify

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20201023003842.GC31092@shao2-debian>
Date:   Fri, 23 Oct 2020 08:38:42 +0800
From:   kernel test robot <lkp@...el.com>
To:     Amir Goldstein <amir73il@...il.com>
Cc:     Jan Kara <jack@...e.cz>, LKML <linux-kernel@...r.kernel.org>,
        lkp@...ts.01.org, lkp@...el.com
Subject: [fsnotify] 9b93f33105:
 WARNING:missing_R10_value_at__fsnotify_parent/0x

Greeting,

FYI, we noticed the following commit (built with gcc-9):

commit: 9b93f33105f5f9bd3d016ff870eb6000c9d89eff ("fsnotify: send event with parent/name info to sb/mount/non-dir marks")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master


in testcase: will-it-scale
version: will-it-scale-x86_64-b695a1b-1_20201007
with following parameters:

	nr_task: 192
	mode: process
	test: read2
	cpufreq_governor: performance
	ucode: 0x11

test-description: Will It Scale takes a testcase and runs it from 1 through to n parallel copies to see if the testcase will scale. It builds both a process and threads based test in order to see any differences between the two.
test-url: https://github.com/antonblanchard/will-it-scale


on test machine: 288 threads Intel(R) Xeon Phi(TM) CPU 7295 @ 1.50GHz with 80G memory

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):



If you fix the issue, kindly add following tag
Reported-by: kernel test robot <lkp@...el.com>


[  117.731012] 2020-10-21 19:10:16 /lkp/benchmarks/python3/bin/python3 ./runtest.py read2 295 process 192
[  117.731023] 
[  117.770939] BMC ARP Control         : ARP Responses Enabled, Gratuitous ARP Disabled
[  117.770950] 
[  117.801209] perf version 5.9.rc8.gc85fb28b6f99
[  117.801219] 
[  182.458747] perf: interrupt took too long (2668 > 2500),perf: interrupt took too long (4516 > 4352), lowering kernel.perf_event_max_sample_rate to 44000
 lowering kernel.perf_event_max_sample_rperf: interrupt took too long (5950 > 5645), lowering kernel.perf_event_max_sample_rate to 33000
ate to 74000
perf: interrupt took too long (7658 > 7437), lowering kernel.perf_event_max_sample_rate to 26000
[  182.502968] perf: interrupt took too long (7658 > 7437), lowering kernel.perf_event_max_sample_rate to 26000
[  182.525840] perf: interrupt took too long (9889 > 9572), lowering kernel.perf_event_max_sample_rate to 20000
f_event_max_sample_rate to 12000
[  182.560905] perf: interrupt took too long (21827 > 20585), lowering kernel.perf_event_max_sample_rate to 9000
[  182.609949] perf: interrupt took too long (30149 > 27283), lowering kernel.perf_event_max_sample_rate to 6000
[  182.622872] perf: interrupt took too long (38986 > 37686), lowering kernel.perf_event_max_sample_rate to 5000
[  182.672850] perf: interrupt took too long (50874 > 48732), lowering kernel.perf_event_max_sample_rate to 3000
[  182.732849] perf: interrupt took too long (63885 > 63592), lowering kernel.perf_event_max_sample_rate to 3000
[  182.751847] perf: interrupt took too long (80901 > 79856), lowering kernel.perf_event_max_sample_rate to 2000
[  188.527603] WARNING: missing R10 value at __fsnotify_parent+0x25/0x280


To reproduce:

        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        bin/lkp install job.yaml  # job file is attached in this email
        bin/lkp run     job.yaml



Thanks,
lkp


View attachment "config-5.8.0-rc4-00111-g9b93f33105f5f9" of type "text/plain" (169427 bytes)

View attachment "job-script" of type "text/plain" (8105 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (27948 bytes)

View attachment "will-it-scale" of type "text/plain" (193 bytes)

View attachment "job.yaml" of type "text/plain" (5525 bytes)

View attachment "reproduce" of type "text/plain" (338 bytes)