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Date: Mon, 14 Oct 2024 09:30:48 -0700
From: Stephen Hemminger <stephen@networkplumber.org>
To: Mattias =?UTF-8?B?UsO2bm5ibG9t?= <mattias.ronnblom@ericsson.com>
Cc: <dev@dpdk.org>, <hofors@lysator.liu.se>, Morten =?UTF-8?B?QnLDuHJ1cA==?=
<mb@smartsharesystems.com>, Konstantin Ananyev
<konstantin.v.ananyev@yandex.ru>, David Marchand
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Jankovic <luka.jankovic@ericsson.com>, Konstantin Ananyev
<konstantin.ananyev@huawei.com>, Chengwen Feng <fengchengwen@huawei.com>
Subject: Re: [PATCH v11 7/7] eal: keep per-lcore power intrinsics state in
lcore variable
Message-ID: <20241014093048.01dd7e40@hermes.local>
In-Reply-To: <20241014074348.821962-8-mattias.ronnblom@ericsson.com>
References: <20241011081901.816211-2-mattias.ronnblom@ericsson.com>
<20241014074348.821962-1-mattias.ronnblom@ericsson.com>
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On Mon, 14 Oct 2024 09:43:48 +0200
Mattias R=C3=B6nnblom <mattias.ronnblom@ericsson.com> wrote:
> Keep per-lcore power intrinsics state in a lcore variable to reduce
> cache working set size and avoid any CPU next-line-prefetching causing
> false sharing.
>=20
> Signed-off-by: Mattias R=C3=B6nnblom <mattias.ronnblom@ericsson.com>
> Acked-by: Morten Br=C3=B8rup <mb@smartsharesystems.com>
> Acked-by: Konstantin Ananyev <konstantin.ananyev@huawei.com>
> Acked-by: Chengwen Feng <fengchengwen@huawei.com>
> Acked-by: Stephen Hemminger <stephen@networkplumber.org>
This looks like a problem.
-------------------------------BEGIN LOGS----------------------------
###########################################################################=
#########
#### [Begin job log] "ubuntu-22.04-clang-asan+doc+tests" at step Build and =
test
###########################################################################=
#########
+ configure_coredump
+ which gdb
+ ulimit -c unlimited
+ sudo sysctl -w kernel.core_pattern=3D/tmp/dpdk-core.%e.%p
kernel.core_pattern =3D /tmp/dpdk-core.%e.%p
+ devtools/test-null.sh
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
=3D=3D67776=3D=3DERROR: AddressSanitizer: invalid alignment requested in al=
igned_alloc: 64, alignment must be a power of two and the requested size 0x=
8000008 must be a multiple of alignment (thread T0)
#0 0x5562b2504042 in aligned_alloc (/home/runner/work/dpdk/dpdk/build/a=
pp/dpdk-testpmd+0xaad042) (BuildId: 731d8ec8ca4a6bf8e01bfd7548ebeb784aece6e=
3)
#1 0x5562b37f671b in lcore_var_alloc /home/runner/work/dpdk/dpdk/build/=
../lib/eal/common/eal_common_lcore_var.c:77:20
#2 0x5562b37f671b in rte_lcore_var_alloc /home/runner/work/dpdk/dpdk/bu=
ild/../lib/eal/common/eal_common_lcore_var.c:123:9
#3 0x5562b341b902 in rte_power_ethdev_pmgmt_init /home/runner/work/dpdk=
/dpdk/build/../lib/power/rte_power_pmd_mgmt.c:775:2
#4 0x7f76b7829eba in call_init csu/../csu/libc-start.c:145:3
#5 0x7f76b7829eba in __libc_start_main csu/../csu/libc-start.c:379:5
=3D=3D67776=3D=3DHINT: if you don't care about these errors you may set all=
ocator_may_return_null=3D1
SUMMARY: AddressSanitizer: invalid-aligned-alloc-alignment (/home/runner/wo=
rk/dpdk/dpdk/build/app/dpdk-testpmd+0xaad042) (BuildId: 731d8ec8ca4a6bf8e01=
bfd7548ebeb784aece6e3) in aligned_alloc
=3D=3D67776=3D=3DABORTING