* selftests: net: pmtu.sh: Unable to handle kernel paging request at virtual address 2c86c000
@ 2022-10-20 7:12 Naresh Kamboju
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From: Naresh Kamboju @ 2022-10-20 7:12 UTC (permalink / raw)
To: open list:KERNEL SELFTEST FRAMEWORK, open list, Netdev
Cc: Anders Roxell, David S. Miller, Arnd Bergmann
Following kernel crash reported while running selftests: net: pmtu.sh
on x15 device with kselftests merge configs enabled.
Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
# selftests: net: pmtu.sh
...
# TEST: IPv4 over vxlan6: PMTU exceptions [ OK ]
[ 169.299682] 8<--- cut here ---
[ 169.302764] Unable to handle kernel paging request at virtual
address 2c86c000
[ 169.310089] [2c86c000] *pgd=00000000
[ 169.313720] Internal error: Oops: 5 [#1] SMP ARM
[ 169.318359] Modules linked in: act_csum act_pedit cls_flower
sch_prio ip_tables x_tables veth tun cfg80211 bluetooth
snd_soc_simple_card snd_soc_simple_card_utils etnaviv gpu_sched
onboard_usb_hub snd_soc_davinci_mcasp snd_soc_ti_udma snd_soc_ti_edma
snd_soc_ti_sdma snd_soc_core ac97_bus snd_pcm_dmaengine snd_pcm
snd_timer snd soundcore display_connector fuse [last unloaded:
test_blackhole_dev]
[ 169.353576] CPU: 0 PID: 295 Comm: rngd Not tainted 6.0.3-rc1 #1
[ 169.359527] Hardware name: Generic DRA74X (Flattened Device Tree)
[ 169.365631] PC is at percpu_counter_add_batch+0x28/0xc4
[ 169.370910] LR is at 0x0
[ 169.373443] pc : [<c0989aa8>] lr : [<00000000>] psr: 600d0113
[ 169.379730] sp : f0001ed8 ip : 00000020 fp : f0001f50
[ 169.385009] r10: c23aef04 r9 : c231efd0 r8 : c25da080
[ 169.390258] r7 : c84adb80 r6 : 00000001 r5 : c9a99440 r4 : 2c86c000
[ 169.396820] r3 : ffffffff r2 : ffffffff r1 : 00000000 r0 : c9a99440
[ 169.403381] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none
[ 169.410552] Control: 10c5387d Table: 891f006a DAC: 00000051
[ 169.416320] Register r0 information: slab net_namespace start
c9a98ec0 data offset 64 pointer offset 1344 allocated at
copy_net_ns+0x78/0x27c
[ 169.429107] kmem_cache_alloc+0x328/0x43c
[ 169.433380] copy_net_ns+0x78/0x27c
[ 169.437164] create_new_namespaces+0x10c/0x2a4
[ 169.441894] unshare_nsproxy_namespaces+0x70/0x8c
[ 169.446868] ksys_unshare+0x16c/0x32c
[ 169.450836] ret_fast_syscall+0x0/0x1c
[ 169.454864] Free path:
[ 169.457305] cleanup_net+0x2e0/0x3c4
[ 169.461151] process_one_work+0x26c/0x708
[ 169.465454] worker_thread+0x60/0x4e8
[ 169.469421] kthread+0xfc/0x11c
[ 169.472839] ret_from_fork+0x14/0x2c
[ 169.476684] Register r1 information: NULL pointer
[ 169.481414] Register r2 information: non-paged memory
[ 169.486480] Register r3 information: non-paged memory
[ 169.491577] Register r4 information: non-paged memory
[ 169.496643] Register r5 information: slab net_namespace start
c9a98ec0 data offset 64 pointer offset 1344 allocated at
copy_net_ns+0x78/0x27c
[ 169.509460] kmem_cache_alloc+0x328/0x43c
[ 169.513763] copy_net_ns+0x78/0x27c
[ 169.517517] create_new_namespaces+0x10c/0x2a4
[ 169.522247] unshare_nsproxy_namespaces+0x70/0x8c
[ 169.527221] ksys_unshare+0x16c/0x32c
[ 169.531188] ret_fast_syscall+0x0/0x1c
[ 169.535217] Free path:
[ 169.537658] cleanup_net+0x2e0/0x3c4
[ 169.541503] process_one_work+0x26c/0x708
[ 169.545806] worker_thread+0x60/0x4e8
[ 169.549743] kthread+0xfc/0x11c
[ 169.553161] ret_from_fork+0x14/0x2c
[ 169.557037] Register r6 information: non-paged memory
[ 169.562103] Register r7 information: slab task_struct start
c84adb40 data offset 64 pointer offset 0 allocated at
copy_process+0x1a4/0x1950
[ 169.574707] kmem_cache_alloc+0x328/0x43c
[ 169.579010] copy_process+0x1a4/0x1950
[ 169.583038] kernel_clone+0x5c/0x418
[ 169.586883] sys_clone+0x74/0x90
[ 169.590393] __sys_trace_return+0x0/0x10
[ 169.594604] Free path:
[ 169.597076] rcu_core+0x3c8/0x1140
[ 169.600738] __do_softirq+0x130/0x538
[ 169.604675] Register r8 information: non-slab/vmalloc memory
[ 169.610382] Register r9 information: non-slab/vmalloc memory
[ 169.616058] Register r10 information: non-slab/vmalloc memory
[ 169.621856] Register r11 information: 2-page vmalloc region
starting at 0xf0000000 allocated at start_kernel+0x578/0x764
[ 169.632781] Register r12 information: non-paged memory
[ 169.637939] Process rngd (pid: 295, stack limit = 0xf0188000)
[ 169.643707] Stack: (0xf0001ed8 to 0xf0002000)
[ 169.648101] 1ec0:
c9b33540 00000000
[ 169.656311] 1ee0: 00000001 00000000 c25da080 c231efd0 c23aef04
c1325f00 00000020 c25da080
[ 169.664550] 1f00: c231efd0 c84adb80 c9b33570 c0402628 00000000
00000000 c04025c4 00000000
[ 169.672760] 1f20: 00000000 0000000a 00000000 c23b0940 c25d9e80
eeb0ff14 c229a5d8 c229a5d8
[ 169.680969] 1f40: c229a484 c229a484 eeb0fec0 00000001 00000000
f0001f50 00000000 e2868d57
[ 169.689178] 1f60: 00000002 c23030a4 00000008 00000009 c25d97e0
c231efd0 00000100 c84adb80
[ 169.697418] 1f80: 00000080 c0301e10 c3212340 c1770a48 00000015
c2303080 c229a518 0000000a
[ 169.705627] 1fa0: c22a3100 c25d79bc c22a3100 ffffccf2 c2305d40
c1de927c c1dfc684 f0001fd0
[ 169.713836] 1fc0: 00400040 00000001 c231fbb0 c84adb80 000d0030
ffffffff c84adb80 c229a044
[ 169.722076] 1fe0: 00000000 b633f000 f0189fa8 c0359ca4 b6ec2cce
c0359e00 b6ec2cce c099b6bc
[ 169.730285] percpu_counter_add_batch from dst_destroy+0x11c/0x130
[ 169.736511] dst_destroy from rcu_core+0x3c8/0x1140
[ 169.741394] rcu_core from __do_softirq+0x130/0x538
[ 169.746307] __do_softirq from __irq_exit_rcu+0x14c/0x170
[ 169.751739] __irq_exit_rcu from irq_exit+0x10/0x30
[ 169.756622] irq_exit from call_with_stack+0x18/0x20
[ 169.761627] call_with_stack from __irq_usr+0x7c/0xa0
[ 169.766693] Exception stack(0xf0189fb0 to 0xf0189ff8)
[ 169.771789] 9fa0: 6fce9940
1b458cad 0000003d b6b3e970
[ 169.779998] 9fc0: b6b3ea20 00028789 0001629c b6b3e8d8 000172a0
00000000 b633f000 b6b3f3a0
[ 169.788208] 9fe0: 00000000 b6b3e8d8 b6ec3835 b6ec2cce 000d0030 ffffffff
[ 169.794860] Code: e5871004 ee1d4f90 e5901038 e1a0efcc (e7946001)
Broadcast message from systemd-journald@am57xx-evm (Thu 2022[
169.801116] ---[ end trace 0000000000000000 ]---
-04-28 17:45:03 UTC):
kernel[290]: [ 169.313720] Internal [ 169.811279] Kernel panic - not
syncing: Fatal exception in interrupt
[ 169.823211] CPU1: stopping
[ 169.825927] CPU: 1 PID: 308 Comm: rngd Tainted: G D
6.0.3-rc1 #1
[ 169.833343] Hardware name: Generic DRA74X (Flattened Device Tree)
[ 169.839477] unwind_backtrace from show_stack+0x18/0x1c
[ 169.844757] show_stack from dump_stack_lvl+0x58/0x70
[ 169.849822] dump_stack_lvl from do_handle_IPI+0x308/0x334
[ 169.855346] do_handle_IPI from ipi_handler+0x20/0x28
[ 169.860412] ipi_handler from handle_percpu_devid_irq+0xcc/0x320
[ 169.866485] handle_percpu_devid_irq from generic_handle_domain_irq+0x30/0x40
[ 169.873657] generic_handle_domain_irq from gic_handle_irq+0x90/0xb0
[ 169.880035] gic_handle_irq from generic_handle_arch_irq+0x34/0x44
[ 169.886260] generic_handle_arch_irq from call_with_stack+0x18/0x20
[ 169.892547] call_with_stack from __irq_svc+0x9c/0xb8
[ 169.897644] Exception stack(0xf0181ee0 to 0xf0181f28)
[ 169.902709] 1ee0: 005807d2 00000000 77359400 00000010 00008272
c23b3300 f0181f80 c23b33c4
[ 169.910919] 1f00: c0427c70 c23b3400 c23b3450 00001c49 0058075e
f0181f30 f6df0000 c0420798
[ 169.919158] 1f20: 600f0013 ffffffff
[ 169.922637] __irq_svc from ktime_get_real_ts64+0x110/0x22c
[ 169.928253] ktime_get_real_ts64 from posix_get_realtime_timespec+0x14/0x1c
[ 169.935272] posix_get_realtime_timespec from sys_clock_gettime+0x64/0xc8
[ 169.942077] sys_clock_gettime from __sys_trace_return+0x0/0x10
[ 169.948028] Exception stack(0xf0181fa8 to 0xf0181ff0)
[ 169.953124] 1fa0: 00000000 b61fea18 00000000
b61fea18 00000000 00000000
[ 169.961334] 1fc0: 00000000 b61fea18 b61feacc 00000193 000172a0
00000000 b59ff000 bee7f000
[ 169.969543] 1fe0: bee7f020 b61fe9c0 bee8055c bee806b8
[ 169.974639] ---[ end Kernel panic - not syncing: Fatal exception in
interrupt ]---
error: Oops: 5 [#1] SMP ARM
Full test log:
https://lkft.validation.linaro.org/scheduler/job/5708561#L5793
metadata:
git_ref: linux-6.0.y
git_repo: https://gitlab.com/Linaro/lkft/mirrors/stable/linux-stable-rc
git_sha: 84429734035197a6ab8e79c852d5e4e6ed744703
git_describe: v6.0-916-g844297340351
kernel_version: 6.0.3-rc1
kernel-config: https://builds.tuxbuild.com/2GMZBBq4CuTDk9rrHpkrP7lPMTT/config
build-url: https://gitlab.com/mrchapp/linux/-/pipelines/671394419
artifact-location: https://builds.tuxbuild.com/2GMZBBq4CuTDk9rrHpkrP7lPMTT
toolchain: gcc-10
vmlinux.xz: https://builds.tuxbuild.com/2GMZBBq4CuTDk9rrHpkrP7lPMTT/vmlinux.xz
System.map: https://builds.tuxbuild.com/2GMZBBq4CuTDk9rrHpkrP7lPMTT/System.map
--
Linaro LKFT
https://lkft.linaro.org
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2022-10-20 7:12 selftests: net: pmtu.sh: Unable to handle kernel paging request at virtual address 2c86c000 Naresh Kamboju
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