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Message-ID: <CA+G9fYvFG4AuXiUQMFBaB8G+a2+-xxbikYkT7Rnpwj5s5KoVaQ@mail.gmail.com>
Date: Tue, 29 Aug 2023 14:31:28 +0530
From: Naresh Kamboju <naresh.kamboju@...aro.org>
To: Netdev <netdev@...r.kernel.org>,
"open list:KERNEL SELFTEST FRAMEWORK"
<linux-kselftest@...r.kernel.org>, lkft-triage@...ts.linaro.org,
open list <linux-kernel@...r.kernel.org>
Cc: "David S. Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>,
Stefano Brivio <sbrivio@...hat.com>,
Shuah Khan <shuah@...nel.org>, Arnd Bergmann <arnd@...db.de>,
Anders Roxell <anders.roxell@...aro.org>
Subject: selftests: net: pmtu.sh: Unable to handle kernel paging request at
virtual address
The selftests: net: pmtu.sh running on Linux next got this kernel panic on
qemu-arm64.
logs:
====
[ 0.000000] Linux version 6.5.0 (tuxmake@...make) (Debian clang
version 18.0.0 (++20230822112105+841c4dc7e51e-1~exp1~20230822112223.851),
Debian LLD 18.0.0) #1 SMP PREEMPT @1693176139
...
# 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: vti4: PMTU exceptions, routed (ESP-in-UDP) [FAIL]
# PMTU exception wasn't created after exceeding PMTU (IP payload length 1438)
# ./pmtu.sh: 938: kill: No such process
#
# ./pmtu.sh: 938: kill: No such process
#
<47>[ 366.411270] systemd-journald[84]: Sent WATCHDOG=1 notification.
# 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 ]
<1>[ 398.987591] Unable to handle kernel paging request at virtual
address ffff5dbb8189f000
<1>[ 398.988469] Mem abort info:
<1>[ 398.988712] ESR = 0x0000000097b58004
<1>[ 398.989264] EC = 0x25: DABT (current EL), IL = 32 bits
<1>[ 398.989893] SET = 0, FnV = 0
<1>[ 398.990312] EA = 0, S1PTW = 0
<1>[ 398.990768] FSC = 0x04: level 0 translation fault
<1>[ 398.992330] Data abort info:
<1>[ 398.992591] Access size = 4 byte(s)
<1>[ 398.992811] SSE = 1, SRT = 21
<1>[ 398.993008] SF = 1, AR = 0
<1>[ 398.993243] CM = 0, WnR = 0, TnD = 0, TagAccess = 0
<1>[ 398.993601] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
<1>[ 398.994094] swapper pgtable: 4k pages, 48-bit VAs, pgdp=0000000041d49000
<1>[ 398.994603] [ffff5dbb8189f000] pgd=0000000000000000, p4d=0000000000000000
<0>[ 398.995464] Internal error: Oops: 0000000097b58004 [#1] PREEMPT SMP
<4>[ 398.996177] Modules linked in: fou6 sit fou bridge stp llc vxlan
ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower
sch_prio veth vrf macvtap macvlan tap crct10dif_ce sm3_ce sm3 sha3_ce
sha512_ce sha512_arm64 fuse drm dm_mod ip_tables x_tables [last
unloaded: test_blackhole_dev]
<4>[ 398.999384] CPU: 1 PID: 132 Comm: kworker/u4:3 Not tainted 6.5.0 #1
<4>[ 399.000045] Hardware name: linux,dummy-virt (DT)
<4>[ 399.001079] Workqueue: netns cleanup_net
<4>[ 399.002441] pstate: 824000c9 (Nzcv daIF +PAN -UAO +TCO -DIT
-SSBS BTYPE=--)
<4>[ 399.003881] pc : percpu_counter_add_batch+0x28/0xd0
<4>[ 399.004637] lr : dst_destroy+0x44/0x1e4
<4>[ 399.004904] sp : ffff80008000be70
<4>[ 399.005864] x29: ffff80008000be70 x28: ffffa2457df6ea40 x27:
ffffa2457df24008
<4>[ 399.006586] x26: ffffa2457dffa000 x25: 000000000000000a x24:
0000000000000002
<4>[ 399.007360] x23: 0000000000000000 x22: 000000000000000a x21:
ffff0000c0e90ec0
<4>[ 399.008276] x20: 0000000000000000 x19: ffff0000c4f83440 x18:
0000000000000000
<4>[ 399.009327] x17: ffff5dbb8189f000 x16: ffff800080008000 x15:
0000000000000010
<4>[ 399.009653] x14: 0000000000000010 x13: 0000000000000004 x12:
0000000000000701
<4>[ 399.010159] x11: 0000000000000001 x10: fffffc00030c7260 x9 :
ffff5dbb8189f000
<4>[ 399.010742] x8 : 0000000000000000 x7 : 7f7f7f7f7f7f7f7f x6 :
fefefefefefefeff
<4>[ 399.012056] x5 : 000000000010000e x4 : fffffc00030c7260 x3 :
000000000010000e
<4>[ 399.013082] x2 : 0000000000000020 x1 : ffffffffffffffff x0 :
ffff0000c4f83440
<4>[ 399.014716] Call trace:
<4>[ 399.015702] percpu_counter_add_batch+0x28/0xd0
<4>[ 399.016399] dst_destroy+0x44/0x1e4
<4>[ 399.016681] dst_destroy_rcu+0x14/0x20
<4>[ 399.017009] rcu_core+0x2d0/0x5e0
<4>[ 399.017311] rcu_core_si+0x10/0x1c
<4>[ 399.017609] __do_softirq+0xd4/0x23c
<4>[ 399.017991] ____do_softirq+0x10/0x1c
<4>[ 399.018320] call_on_irq_stack+0x24/0x4c
<4>[ 399.018723] do_softirq_own_stack+0x1c/0x28
<4>[ 399.022639] __irq_exit_rcu+0x6c/0xcc
<4>[ 399.023434] irq_exit_rcu+0x10/0x1c
<4>[ 399.023962] el1_interrupt+0x8c/0xc0
<4>[ 399.024810] el1h_64_irq_handler+0x18/0x24
<4>[ 399.025324] el1h_64_irq+0x64/0x68
<4>[ 399.025612] _raw_spin_lock_bh+0x0/0x6c
<4>[ 399.026102] cleanup_net+0x280/0x45c
<4>[ 399.026403] process_one_work+0x1d4/0x310
<4>[ 399.027140] worker_thread+0x248/0x470
<4>[ 399.027621] kthread+0xfc/0x184
<4>[ 399.028068] ret_from_fork+0x10/0x20
<0>[ 399.029333] Code: d50343df aa0003f3 f9401008 d53cd049 (b8a86935)
<4>[ 399.030578] ---[ end trace 0000000000000000 ]---
<0>[ 399.031422] Kernel panic - not syncing: Oops: Fatal exception in interrupt
<2>[ 399.032320] SMP: stopping secondary CPUs
<0>[ 399.033487] Kernel Offset: 0x2244fc200000 from 0xffff800080000000
<0>[ 399.033819] PHYS_OFFSET: 0x40000000
<0>[ 399.034096] CPU features: 0x00000000,68f167a1,ccc6773f
<0>[ 399.034779] Memory Limit: none
<0>[ 399.035768] ---[ end Kernel panic - not syncing: Oops: Fatal
exception in interrupt ]---
Links:
- https://qa-reports.linaro.org/lkft/linux-mainline-master/build/v6.5/testrun/19373075/suite/log-parser-test/test/check-kernel-oops/log
- https://qa-reports.linaro.org/lkft/linux-mainline-master/build/v6.5/testrun/19373075/suite/log-parser-test/tests/
- https://storage.tuxsuite.com/public/linaro/lkft/builds/2UaRggcJ0lNsDMIbbFaiyz3Qwsi/
Steps to reproduce:
===================
#
# To install tuxrun to your home directory at ~/.local/bin:
# pip3 install -U --user tuxrun==0.48.0
#
# Or install a deb/rpm depending on the running distribution
# See https://tuxmake.org/install-deb/ or
# https://tuxmake.org/install-rpm/
#
# See https://tuxrun.org/ for complete documentation.
#
# Please follow the additional instructions if the tests are related to FVP:
# https://tuxrun.org/run-fvp/
#
tuxrun --runtime podman --device qemu-arm64 --boot-args rw --kernel
https://storage.tuxsuite.com/public/linaro/lkft/builds/2UaRggcJ0lNsDMIbbFaiyz3Qwsi/Image.gz
--modules https://storage.tuxsuite.com/public/linaro/lkft/builds/2UaRggcJ0lNsDMIbbFaiyz3Qwsi/modules.tar.xz
--rootfs https://storage.tuxboot.com/debian/bookworm/arm64/rootfs.ext4.xz
--parameters SHARD_INDEX=1 --parameters SKIPFILE=skipfile-lkft.yaml
--parameters SHARD_NUMBER=5 --parameters
KSELFTEST=https://storage.tuxsuite.com/public/linaro/lkft/builds/2UaRggcJ0lNsDMIbbFaiyz3Qwsi/kselftest.tar.xz
--image docker.io/linaro/tuxrun-dispatcher:v0.48.0 --tests
kselftest-net --timeouts boot=30 kselftest-net=30
--
Linaro LKFT
https://lkft.linaro.org
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