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Date: Wed, 25 Mar 2020 11:04:35 +0800
From: kernel test robot <rong.a.chen@...el.com>
To: Qian Cai <cai@....pw>
Cc: davem@...emloft.net, alexander.h.duyck@...ux.intel.com,
kuznet@....inr.ac.ru, kuba@...nel.org, yoshfuji@...ux-ipv6.org,
netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
Qian Cai <cai@....pw>, lkp@...ts.01.org
Subject: [ipv4] f3f6f46e79: kernel-selftests.net.pmtu.sh.fail
FYI, we noticed the following commit (built with gcc-7):
commit: f3f6f46e7935c5fe707b4a88124556d8b9f10c92 ("[PATCH] ipv4: fix a RCU-list bug in inet_dump_fib()")
url: https://github.com/0day-ci/linux/commits/Qian-Cai/ipv4-fix-a-RCU-list-bug-in-inet_dump_fib/20200320-061342
in testcase: kernel-selftests
with following parameters:
group: kselftests-02
ucode: 0xd6
test-description: The kernel contains a set of "self tests" under the tools/testing/selftests/ directory. These are intended to be small unit tests to exercise individual code paths in the kernel.
test-url: https://www.kernel.org/doc/Documentation/kselftest.txt
on test machine: 8 threads Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz with 16G 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 <rong.a.chen@...el.com>
# selftests: net: pmtu.sh
# TEST: ipv4: PMTU exceptions [ OK ]
# TEST: ipv4: PMTU exceptions - nexthop objects [ OK ]
# TEST: ipv6: PMTU exceptions [ OK ]
# TEST: ipv6: PMTU exceptions - nexthop objects [ OK ]
# TEST: IPv4 over vxlan4: PMTU exceptions [ OK ]
# TEST: IPv4 over vxlan4: PMTU exceptions - nexthop objects [ OK ]
# TEST: IPv6 over vxlan4: PMTU exceptions [ OK ]
# TEST: IPv6 over vxlan4: PMTU exceptions - nexthop objects [ OK ]
# TEST: IPv4 over vxlan6: PMTU exceptions [ OK ]
# TEST: IPv4 over vxlan6: PMTU exceptions - nexthop objects [ OK ]
# TEST: IPv6 over vxlan6: PMTU exceptions [ OK ]
# TEST: IPv6 over vxlan6: PMTU exceptions - nexthop objects [ OK ]
# TEST: IPv4 over geneve4: PMTU exceptions [ OK ]
# TEST: IPv4 over geneve4: PMTU exceptions - nexthop objects [ OK ]
# TEST: IPv6 over geneve4: PMTU exceptions [ OK ]
# TEST: IPv6 over geneve4: PMTU exceptions - nexthop objects [ OK ]
# TEST: IPv4 over geneve6: PMTU exceptions [ OK ]
# TEST: IPv4 over geneve6: PMTU exceptions - nexthop objects [ OK ]
# TEST: IPv6 over geneve6: PMTU exceptions [ OK ]
# TEST: IPv6 over geneve6: PMTU exceptions - nexthop objects [ OK ]
# TEST: IPv4 over fou4: PMTU exceptions [ OK ]
# TEST: IPv4 over fou4: PMTU exceptions - nexthop objects [ OK ]
# TEST: IPv6 over fou4: PMTU exceptions [ OK ]
# TEST: IPv6 over fou4: PMTU exceptions - nexthop objects [ OK ]
# TEST: IPv4 over fou6: PMTU exceptions [ OK ]
# TEST: IPv4 over fou6: PMTU exceptions - nexthop objects [ OK ]
# TEST: IPv6 over fou6: PMTU exceptions [ OK ]
# TEST: IPv6 over fou6: PMTU exceptions - nexthop objects [ OK ]
# TEST: IPv4 over gue4: PMTU exceptions [ OK ]
# TEST: IPv4 over gue4: PMTU exceptions - nexthop objects [ OK ]
# TEST: IPv6 over gue4: PMTU exceptions [ OK ]
# TEST: IPv6 over gue4: PMTU exceptions - nexthop objects [ OK ]
# TEST: IPv4 over gue6: PMTU exceptions [ OK ]
# TEST: IPv4 over gue6: PMTU exceptions - nexthop objects [ OK ]
# TEST: IPv6 over gue6: PMTU exceptions [ OK ]
# TEST: IPv6 over gue6: PMTU exceptions - nexthop objects [ OK ]
# TEST: vti6: PMTU exceptions [ OK ]
# TEST: vti4: PMTU exceptions [ OK ]
# TEST: vti4: default MTU assignment [ OK ]
# TEST: vti6: default MTU assignment [ OK ]
# TEST: vti4: MTU setting on link creation [ OK ]
# TEST: vti6: MTU setting on link creation [ OK ]
# TEST: vti6: MTU changes on link changes [ OK ]
# TEST: ipv4: cleanup of cached exceptions [ OK ]
# TEST: ipv4: cleanup of cached exceptions - nexthop objects [ OK ]
# TEST: ipv6: cleanup of cached exceptions [ OK ]
# TEST: ipv6: cleanup of cached exceptions - nexthop objects [ OK ]
# Segmentation fault
# Segmentation fault
# TEST: ipv4: list and flush cached exceptions [FAIL]
# can't list cached exceptions
# Segmentation fault
# Segmentation fault
# TEST: ipv4: list and flush cached exceptions - nexthop objects [FAIL]
# can't list cached exceptions
# TEST: ipv6: list and flush cached exceptions [ OK ]
# TEST: ipv6: list and flush cached exceptions - nexthop objects [ OK ]
not ok 16 selftests: net: pmtu.sh # exit=1
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,
Rong Chen
View attachment "config-5.6.0-rc5-01734-gf3f6f46e7935c" of type "text/plain" (203657 bytes)
View attachment "job-script" of type "text/plain" (6254 bytes)
Download attachment "kmsg.xz" of type "application/x-xz" (83712 bytes)
View attachment "kernel-selftests" of type "text/plain" (254546 bytes)
View attachment "job.yaml" of type "text/plain" (5351 bytes)
View attachment "reproduce" of type "text/plain" (1176 bytes)
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