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Date: Tue, 16 Jun 2020 15:14:21 +0530
From: Naresh Kamboju <naresh.kamboju@...aro.org>
To: linux- stable <stable@...r.kernel.org>,
open list <linux-kernel@...r.kernel.org>
Cc: Kees Cook <keescook@...omium.org>,
Christian Brauner <christian.brauner@...ntu.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Sasha Levin <sashal@...nel.org>, lkft-triage@...ts.linaro.org,
Will Deacon <will@...nel.org>, Shuah Khan <shuah@...nel.org>
Subject: stable-rc 5.4.47-rc1/cbc29a7953ca: no regressions found in project
stable v5.4.y
Results from Linaro’s test farm.
No regressions on arm64, arm, x86_64, and i386.
While running kselftest on arm64 Juno the following kernel warning was
reported. FYI, we are running kselftest 5.7.
We have been noticing this warning on 5.4 and 5.6 branches.
[ 486.146777] kselftest: Running tests in gpio
[ 486.498350] ------------[ cut here ]------------
[ 486.503045] refcount_t: underflow; use-after-free.
[ 486.508067] WARNING: CPU: 1 PID: 7242 at
/usr/src/kernel/lib/refcount.c:190
refcount_sub_and_test_checked+0xac/0xc8
[ 486.518525] Modules linked in: gpio_mockup(-) cls_bpf sch_fq 8021q
garp stp mrp llc sch_ingress veth algif_hash rfkill tda998x
drm_kms_helper drm crct10dif_ce fuse [last unloaded: test_bpf]
[ 486.535459] CPU: 1 PID: 7242 Comm: modprobe Not tainted 5.4.47-rc1 #1
[ 486.541913] Hardware name: ARM Juno development board (r2) (DT)
[ 486.547847] pstate: 40000005 (nZcv daif -PAN -UAO)
[ 486.552650] pc : refcount_sub_and_test_checked+0xac/0xc8
[ 486.557974] lr : refcount_sub_and_test_checked+0xac/0xc8
[ 486.563296] sp : ffff80001aee3bb0
[ 486.566617] x29: ffff80001aee3bb0 x28: ffff000953b20000
[ 486.571943] x27: 0000000000000000 x26: 0000000000000000
[ 486.577269] x25: 0000000000000045 x24: ffff00096ee6d478
[ 486.582594] x23: ffff8000123e4800 x22: ffff8000123e4000
[ 486.587920] x21: ffff00096ee6b008 x20: ffff00096ee6b000
[ 486.593245] x19: ffff00096ee6b008 x18: ffffffffffffffff
[ 486.598569] x17: 0000000000000000 x16: 0000000000000000
[ 486.603895] x15: ffff8000122bfa48 x14: ffff80009aee3897
[ 486.609219] x13: ffff80001aee38a5 x12: ffff8000122ec000
[ 486.614544] x11: 0000000005f5e0ff x10: ffff80001aee3830
[ 486.619869] x9 : ffff8000125f1c98 x8 : 0000000000000028
[ 486.625195] x7 : ffff800010193e3c x6 : ffff00097ef303e8
[ 486.630520] x5 : ffff00097ef303e8 x4 : ffff000953b20000
[ 486.635844] x3 : ffff8000122c0000 x2 : 0000000000000000
[ 486.641169] x1 : 677d96118732a100 x0 : 0000000000000000
[ 486.646495] Call trace:
[ 486.648948] refcount_sub_and_test_checked+0xac/0xc8
[ 486.653924] refcount_dec_and_test_checked+0x14/0x20
[ 486.658901] kobject_put+0x24/0x210
[ 486.662400] put_device+0x24/0x30
[ 486.665723] gpiochip_remove+0xe0/0x120
[ 486.669567] devm_gpio_chip_release+0x20/0x30
[ 486.673934] release_nodes+0x150/0x248
[ 486.677690] devres_release_all+0x3c/0x60
[ 486.681710] device_release_driver_internal+0x110/0x1d8
[ 486.686947] driver_detach+0x5c/0xe8
[ 486.690529] bus_remove_driver+0x64/0x118
[ 486.694548] driver_unregister+0x34/0x60
[ 486.698482] platform_driver_unregister+0x20/0x30
[ 486.703201] gpio_mockup_exit+0x30/0x490 [gpio_mockup]
[ 486.708355] __arm64_sys_delete_module+0x190/0x2c0
[ 486.713160] el0_svc_common.constprop.2+0x7c/0x180
[ 486.717962] el0_svc_handler+0x34/0xa0
[ 486.721720] el0_svc+0x8/0xc
[ 486.724606] irq event stamp: 2790
[ 486.727930] hardirqs last enabled at (2789): [<ffff800010193fdc>]
console_unlock+0x52c/0x5f8
[ 486.736476] hardirqs last disabled at (2790): [<ffff8000100a8f0c>]
debug_exception_enter+0xac/0xe8
[ 486.745455] softirqs last enabled at (2786): [<ffff8000100821ec>]
__do_softirq+0x4c4/0x578
[ 486.753827] softirqs last disabled at (2687): [<ffff80001010a8b4>]
irq_exit+0x144/0x150
[ 486.761846] ---[ end trace 2c86a1fe4de2724b ]---
[ 487.328176] gpio gpiochip2: (gpio-mockup-B): line cnt 1024 is
greater than fast path cnt 512
[ 487.336696] gpiochip_find_base: cannot find free range
[ 487.342013] gpiochip_add_data_with_key: GPIOs 0..1023
(gpio-mockup-B) failed to register, -28
[ 487.426615] gpio-mockup: probe of gpio-mockup.1 failed with error -28
Ref:
stable rc-5.4 warning on arm64 Juno-r2 while running kselftest
https://qa-reports.linaro.org/lkft/linux-stable-rc-5.4-oe/build/v5.4.46-83-gcbc29a7953ca/testrun/2825770/suite/linux-log-parser/test/check-kernel-warning-1496069/log
stable rc-5.6 warning on arm64 Juno-r2 while running kselftest
https://lkft.validation.linaro.org/scheduler/job/1496847#L9357
Summary
------------------------------------------------------------------------
kernel: 5.4.47-rc1
git repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
git branch: linux-5.4.y
git commit: cbc29a7953ca53d5db824b78b27ea50936747544
git describe: v5.4.46-83-gcbc29a7953ca
Test details: https://qa-reports.linaro.org/lkft/linux-stable-rc-5.4-oe/build/v5.4.46-83-gcbc29a7953ca
No regressions (compared to build v5.4.45-35-g12a5ce113626)
No fixes (compared to build v5.4.45-35-g12a5ce113626)
Ran 34599 total tests in the following environments and test suites.
Environments
--------------
- dragonboard-410c
- hi6220-hikey
- i386
- juno-r2
- juno-r2-compat
- juno-r2-kasan
- nxp-ls2088
- qemu_arm
- qemu_arm64
- qemu_i386
- qemu_x86_64
- x15
- x86
- x86-kasan
Test Suites
-----------
* build
* install-android-platform-tools-r2600
* install-android-platform-tools-r2800
* kselftest
* kselftest/drivers
* kselftest/filesystems
* kselftest/net
* linux-log-parser
* ltp-cap_bounds-tests
* ltp-commands-tests
* ltp-containers-tests
* ltp-cpuhotplug-tests
* ltp-crypto-tests
* ltp-dio-tests
* ltp-fs-tests
* ltp-hugetlb-tests
* ltp-io-tests
* ltp-ipc-tests
* ltp-math-tests
* ltp-mm-tests
* ltp-nptl-tests
* ltp-pty-tests
* ltp-sched-tests
* ltp-securebits-tests
* perf
* libhugetlbfs
* ltp-cve-tests
* ltp-fcntl-locktests-tests
* ltp-filecaps-tests
* ltp-fs_bind-tests
* ltp-fs_perms_simple-tests
* ltp-fsx-tests
* ltp-syscalls-tests
* network-basic-tests
* v4l2-compliance
* ltp-controllers-tests
* ltp-open-posix-tests
* kvm-unit-tests
* kselftest-vsyscall-mode-native
* kselftest-vsyscall-mode-native/drivers
* kselftest-vsyscall-mode-native/filesystems
* kselftest-vsyscall-mode-native/net
* kselftest-vsyscall-mode-none
* kselftest-vsyscall-mode-none/drivers
* kselftest-vsyscall-mode-none/filesystems
* kselftest-vsyscall-mode-none/net
--
Linaro LKFT
https://lkft.linaro.org
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