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[PATCH AUTOSEL 5.6 27/62] selftests: fix kvm relocatable native/cross builds and installs

by Sasha Levin

From: Shuah Khan <skhan(a)linuxfoundation.org> [ Upstream commit 66d69e081b526b6a6031f0d3ca8ddff71e5707a5 ] kvm test Makefile doesn't fully support cross-builds and installs. UNAME_M = $(shell uname -m) variable is used to define the target programs and libraries to be built from arch specific sources in sub-directories. For cross-builds to work, UNAME_M has to map to ARCH and arch specific directories and targets in this Makefile. UNAME_M variable to used to run the compiles pointing to the right arch directories and build the right targets for these supported architectures. TEST_GEN_PROGS and LIBKVM are set using UNAME_M variable. LINUX_TOOL_ARCH_INCLUDE is set using ARCH variable. x86_64 targets are named to include x86_64 as a suffix and directories for includes are in x86_64 sub-directory. s390x and aarch64 follow the same convention. "uname -m" doesn't result in the correct mapping for s390x and aarch64. Fix it to set UNAME_M correctly for s390x and aarch64 cross-builds. In addition, Makefile doesn't create arch sub-directories in the case of relocatable builds and test programs under s390x and x86_64 directories fail to build. This is a problem for native and cross-builds. Fix it to create all necessary directories keying off of TEST_GEN_PROGS. The following use-cases work with this change: Native x86_64: make O=/tmp/kselftest -C tools/testing/selftests TARGETS=kvm install \ INSTALL_PATH=$HOME/x86_64 arm64 cross-build: make O=$HOME/arm64_build/ ARCH=arm64 HOSTCC=gcc \ CROSS_COMPILE=aarch64-linux-gnu- defconfig make O=$HOME/arm64_build/ ARCH=arm64 HOSTCC=gcc \ CROSS_COMPILE=aarch64-linux-gnu- all make kselftest-install TARGETS=kvm O=$HOME/arm64_build ARCH=arm64 \ HOSTCC=gcc CROSS_COMPILE=aarch64-linux-gnu- s390x cross-build: make O=$HOME/s390x_build/ ARCH=s390 HOSTCC=gcc \ CROSS_COMPILE=s390x-linux-gnu- defconfig make O=$HOME/s390x_build/ ARCH=s390 HOSTCC=gcc \ CROSS_COMPILE=s390x-linux-gnu- all make kselftest-install TARGETS=kvm O=$HOME/s390x_build/ ARCH=s390 \ HOSTCC=gcc CROSS_COMPILE=s390x-linux-gnu- all No regressions in the following use-cases: make -C tools/testing/selftests TARGETS=kvm make kselftest-all TARGETS=kvm Signed-off-by: Shuah Khan <skhan(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/kvm/Makefile | 29 +++++++++++++++++++++++++++- 1 file changed, 28 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/kvm/Makefile b/tools/testing/selftests/kvm/Makefile index d91c53b726e60..75dec268787f3 100644 --- a/tools/testing/selftests/kvm/Makefile +++ b/tools/testing/selftests/kvm/Makefile @@ -5,8 +5,34 @@ all: top_srcdir = ../../../.. KSFT_KHDR_INSTALL := 1 + +# For cross-builds to work, UNAME_M has to map to ARCH and arch specific +# directories and targets in this Makefile. "uname -m" doesn't map to +# arch specific sub-directory names. +# +# UNAME_M variable to used to run the compiles pointing to the right arch +# directories and build the right targets for these supported architectures. +# +# TEST_GEN_PROGS and LIBKVM are set using UNAME_M variable. +# LINUX_TOOL_ARCH_INCLUDE is set using ARCH variable. +# +# x86_64 targets are named to include x86_64 as a suffix and directories +# for includes are in x86_64 sub-directory. s390x and aarch64 follow the +# same convention. "uname -m" doesn't result in the correct mapping for +# s390x and aarch64. +# +# No change necessary for x86_64 UNAME_M := $(shell uname -m) +# Set UNAME_M for arm64 compile/install to work +ifeq ($(ARCH),arm64) + UNAME_M := aarch64 +endif +# Set UNAME_M s390x compile/install to work +ifeq ($(ARCH),s390) + UNAME_M := s390x +endif + LIBKVM = lib/assert.c lib/elf.c lib/io.c lib/kvm_util.c lib/sparsebit.c LIBKVM_x86_64 = lib/x86_64/processor.c lib/x86_64/vmx.c lib/x86_64/svm.c lib/x86_64/ucall.c LIBKVM_aarch64 = lib/aarch64/processor.c lib/aarch64/ucall.c @@ -47,7 +73,7 @@ LIBKVM += $(LIBKVM_$(UNAME_M)) INSTALL_HDR_PATH = $(top_srcdir)/usr LINUX_HDR_PATH = $(INSTALL_HDR_PATH)/include/ LINUX_TOOL_INCLUDE = $(top_srcdir)/tools/include -LINUX_TOOL_ARCH_INCLUDE = $(top_srcdir)/tools/arch/x86/include +LINUX_TOOL_ARCH_INCLUDE = $(top_srcdir)/tools/arch/$(ARCH)/include CFLAGS += -Wall -Wstrict-prototypes -Wuninitialized -O2 -g -std=gnu99 \ -fno-stack-protector -fno-PIE -I$(LINUX_TOOL_INCLUDE) \ -I$(LINUX_TOOL_ARCH_INCLUDE) -I$(LINUX_HDR_PATH) -Iinclude \ @@ -78,6 +104,7 @@ $(LIBKVM_OBJ): $(OUTPUT)/%.o: %.c $(OUTPUT)/libkvm.a: $(LIBKVM_OBJ) $(AR) crs $@ $^ +x := $(shell mkdir -p $(sort $(dir $(TEST_GEN_PROGS)))) all: $(STATIC_LIBS) $(TEST_GEN_PROGS): $(STATIC_LIBS) -- 2.20.1

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[PATCH AUTOSEL 5.6 26/62] ftrace/selftest: make unresolved cases cause failure if --fail-unresolved set

by Sasha Levin

From: Alan Maguire <alan.maguire(a)oracle.com> [ Upstream commit b730d668138cb3dd9ce78f8003986d1adae5523a ] Currently, ftracetest will return 1 (failure) if any unresolved cases are encountered. The unresolved status results from modules and programs not being available, and as such does not indicate any issues with ftrace itself. As such, change the behaviour of ftracetest in line with unsupported cases; if unsupported cases happen, ftracetest still returns 0 unless --fail-unsupported. Here --fail-unresolved is added and the default is to return 0 if unresolved results occur. Signed-off-by: Alan Maguire <alan.maguire(a)oracle.com> Acked-by: Masami Hiramatsu <mhiramat(a)kernel.org> Acked-by: Steven Rostedt (VMware) <rostedt(a)goodmis.org> Signed-off-by: Shuah Khan <skhan(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/ftrace/ftracetest | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/ftrace/ftracetest b/tools/testing/selftests/ftrace/ftracetest index 144308a757b70..19e9236dec5e2 100755 --- a/tools/testing/selftests/ftrace/ftracetest +++ b/tools/testing/selftests/ftrace/ftracetest @@ -17,6 +17,7 @@ echo " -v|--verbose Increase verbosity of test messages" echo " -vv Alias of -v -v (Show all results in stdout)" echo " -vvv Alias of -v -v -v (Show all commands immediately)" echo " --fail-unsupported Treat UNSUPPORTED as a failure" +echo " --fail-unresolved Treat UNRESOLVED as a failure" echo " -d|--debug Debug mode (trace all shell commands)" echo " -l|--logdir <dir> Save logs on the <dir>" echo " If <dir> is -, all logs output in console only" @@ -112,6 +113,10 @@ parse_opts() { # opts UNSUPPORTED_RESULT=1 shift 1 ;; + --fail-unresolved) + UNRESOLVED_RESULT=1 + shift 1 + ;; --logdir|-l) LOG_DIR=$2 shift 2 @@ -176,6 +181,7 @@ KEEP_LOG=0 DEBUG=0 VERBOSE=0 UNSUPPORTED_RESULT=0 +UNRESOLVED_RESULT=0 STOP_FAILURE=0 # Parse command-line options parse_opts $* @@ -280,7 +286,7 @@ eval_result() { # sigval $UNRESOLVED) prlog " [${color_blue}UNRESOLVED${color_reset}]" UNRESOLVED_CASES="$UNRESOLVED_CASES $CASENO" - return 1 # this is a kind of bug.. something happened. + return $UNRESOLVED_RESULT # depends on use case ;; $UNTESTED) prlog " [${color_blue}UNTESTED${color_reset}]" -- 2.20.1

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[PATCH AUTOSEL 5.6 25/62] ftrace/selftests: workaround cgroup RT scheduling issues

by Sasha Levin

From: Alan Maguire <alan.maguire(a)oracle.com> [ Upstream commit 57c4cfd4a2eef8f94052bd7c0fce0981f74fb213 ] wakeup_rt.tc and wakeup.tc tests in tracers/ subdirectory fail due to the chrt command returning: chrt: failed to set pid 0's policy: Operation not permitted. To work around this, temporarily disable grout RT scheduling during ftracetest execution. Restore original value on test run completion. With these changes in place, both tests consistently pass. Fixes: c575dea2c1a5 ("selftests/ftrace: Add wakeup_rt tracer testcase") Fixes: c1edd060b413 ("selftests/ftrace: Add wakeup tracer testcase") Signed-off-by: Alan Maguire <alan.maguire(a)oracle.com> Acked-by: Steven Rostedt (VMware) <rostedt(a)goodmis.org> Signed-off-by: Shuah Khan <skhan(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/ftrace/ftracetest | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/tools/testing/selftests/ftrace/ftracetest b/tools/testing/selftests/ftrace/ftracetest index 063ecb290a5a3..144308a757b70 100755 --- a/tools/testing/selftests/ftrace/ftracetest +++ b/tools/testing/selftests/ftrace/ftracetest @@ -29,8 +29,25 @@ err_ret=1 # kselftest skip code is 4 err_skip=4 +# cgroup RT scheduling prevents chrt commands from succeeding, which +# induces failures in test wakeup tests. Disable for the duration of +# the tests. + +readonly sched_rt_runtime=/proc/sys/kernel/sched_rt_runtime_us + +sched_rt_runtime_orig=$(cat $sched_rt_runtime) + +setup() { + echo -1 > $sched_rt_runtime +} + +cleanup() { + echo $sched_rt_runtime_orig > $sched_rt_runtime +} + errexit() { # message echo "Error: $1" 1>&2 + cleanup exit $err_ret } @@ -39,6 +56,8 @@ if [ `id -u` -ne 0 ]; then errexit "this must be run by root user" fi +setup + # Utilities absdir() { # file_path (cd `dirname $1`; pwd) @@ -235,6 +254,7 @@ TOTAL_RESULT=0 INSTANCE= CASENO=0 + testcase() { # testfile CASENO=$((CASENO+1)) desc=`grep "^#[ \t]*description:" $1 | cut -f2 -d:` @@ -406,5 +426,7 @@ prlog "# of unsupported: " `echo $UNSUPPORTED_CASES | wc -w` prlog "# of xfailed: " `echo $XFAILED_CASES | wc -w` prlog "# of undefined(test bug): " `echo $UNDEFINED_CASES | wc -w` +cleanup + # if no error, return 0 exit $TOTAL_RESULT -- 2.20.1

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[PATCH net-next] selftests: fix flower parent qdisc

by Vlad Buslov

Flower tests used to create ingress filter with specified parent qdisc "parent ffff:" but dump them on "ingress". With recent commit that fixed tcm_parent handling in dump those are not considered same parent anymore, which causes iproute2 tc to emit additional "parent ffff:" in first line of filter dump output. The change in output causes filter match in tests to fail. Prevent parent qdisc output when dumping filters in flower tests by always correctly specifying "ingress" parent both when creating and dumping filters. Fixes: a7df4870d79b ("net_sched: fix tcm_parent in tc filter dump") Signed-off-by: Vlad Buslov <vladbu(a)mellanox.com> --- .../selftests/tc-testing/tc-tests/filters/tests.json | 6 +++--- tools/testing/selftests/tc-testing/tdc_batch.py | 6 +++--- 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/tools/testing/selftests/tc-testing/tc-tests/filters/tests.json b/tools/testing/selftests/tc-testing/tc-tests/filters/tests.json index 8877f7b2b809..12aa4bc1f6a0 100644 --- a/tools/testing/selftests/tc-testing/tc-tests/filters/tests.json +++ b/tools/testing/selftests/tc-testing/tc-tests/filters/tests.json @@ -32,7 +32,7 @@ "setup": [ "$TC qdisc add dev $DEV2 ingress" ], - "cmdUnderTest": "$TC filter add dev $DEV2 protocol ip pref 1 parent ffff: handle 0xffffffff flower action ok", + "cmdUnderTest": "$TC filter add dev $DEV2 protocol ip pref 1 ingress handle 0xffffffff flower action ok", "expExitCode": "0", "verifyCmd": "$TC filter show dev $DEV2 ingress", "matchPattern": "filter protocol ip pref 1 flower.*handle 0xffffffff", @@ -77,9 +77,9 @@ }, "setup": [ "$TC qdisc add dev $DEV2 ingress", - "$TC filter add dev $DEV2 protocol ip prio 1 parent ffff: flower dst_mac e4:11:22:11:4a:51 src_mac e4:11:22:11:4a:50 ip_proto tcp src_ip 1.1.1.1 dst_ip 2.2.2.2 action drop" + "$TC filter add dev $DEV2 protocol ip prio 1 ingress flower dst_mac e4:11:22:11:4a:51 src_mac e4:11:22:11:4a:50 ip_proto tcp src_ip 1.1.1.1 dst_ip 2.2.2.2 action drop" ], - "cmdUnderTest": "$TC filter add dev $DEV2 protocol ip prio 1 parent ffff: flower dst_mac e4:11:22:11:4a:51 src_mac e4:11:22:11:4a:50 ip_proto tcp src_ip 1.1.1.1 dst_ip 2.2.2.2 action drop", + "cmdUnderTest": "$TC filter add dev $DEV2 protocol ip prio 1 ingress flower dst_mac e4:11:22:11:4a:51 src_mac e4:11:22:11:4a:50 ip_proto tcp src_ip 1.1.1.1 dst_ip 2.2.2.2 action drop", "expExitCode": "2", "verifyCmd": "$TC -s filter show dev $DEV2 ingress", "matchPattern": "filter protocol ip pref 1 flower chain 0 handle", diff --git a/tools/testing/selftests/tc-testing/tdc_batch.py b/tools/testing/selftests/tc-testing/tdc_batch.py index 6a2bd2cf528e..995f66ce43eb 100755 --- a/tools/testing/selftests/tc-testing/tdc_batch.py +++ b/tools/testing/selftests/tc-testing/tdc_batch.py @@ -72,21 +72,21 @@ mac_prefix = args.mac_prefix def format_add_filter(device, prio, handle, skip, src_mac, dst_mac, share_action): - return ("filter add dev {} {} protocol ip parent ffff: handle {} " + return ("filter add dev {} {} protocol ip ingress handle {} " " flower {} src_mac {} dst_mac {} action drop {}".format( device, prio, handle, skip, src_mac, dst_mac, share_action)) def format_rep_filter(device, prio, handle, skip, src_mac, dst_mac, share_action): - return ("filter replace dev {} {} protocol ip parent ffff: handle {} " + return ("filter replace dev {} {} protocol ip ingress handle {} " " flower {} src_mac {} dst_mac {} action drop {}".format( device, prio, handle, skip, src_mac, dst_mac, share_action)) def format_del_filter(device, prio, handle, skip, src_mac, dst_mac, share_action): - return ("filter del dev {} {} protocol ip parent ffff: handle {} " + return ("filter del dev {} {} protocol ip ingress handle {} " "flower".format(device, prio, handle)) -- 2.21.0

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[PATCH] selftests/tpm: Fix runtime error

by Jarkko Sakkinen

There is some random clutter in test_smoke.sh: ./test_smoke.sh: line 3: self.flags: command not found Remove it. Fixes: b32694cd0724 ("Kernel selftests: tpm2: check for tpm support") Cc: Nikita Sobolev <Nikita.Sobolev(a)synopsys.com> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen(a)linux.intel.com> --- I rely on these tests and this was not even cc'd to me and obviously was untested. There is neither reviewed-by nor tested-by tags in the commit (not to mention some cosmetic things like short summary formatted wrong and the extra newline character). Please do not do this next time. Thanks. tools/testing/selftests/tpm2/test_smoke.sh | 2 -- 1 file changed, 2 deletions(-) diff --git a/tools/testing/selftests/tpm2/test_smoke.sh b/tools/testing/selftests/tpm2/test_smoke.sh index b630c7b5950a..e55d3e400666 100755 --- a/tools/testing/selftests/tpm2/test_smoke.sh +++ b/tools/testing/selftests/tpm2/test_smoke.sh @@ -1,11 +1,9 @@ #!/bin/bash # SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) -self.flags = flags # Kselftest framework requirement - SKIP code is 4. ksft_skip=4 - if [ -f /dev/tpm0 ] ; then python -m unittest -v tpm2_tests.SmokeTest python -m unittest -v tpm2_tests.AsyncTest -- 2.25.1

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Re: [PATCH v5 6/7] misc: bcm-vk: add Broadcom VK driver

by Luis Chamberlain

On Thu, May 07, 2020 at 05:27:38PM -0700, Scott Branden wrote: > +#if defined(CONFIG_REQ_FW_INTO_BUF_PRIV) > + > +#define KERNEL_PREAD_FLAG_PART 0x0001 /* Allow reading part of file */ > +#define REQUEST_FIRMWARE_INTO_BUF request_firmware_into_buf_priv > +int request_firmware_into_buf_priv(const struct firmware **firmware_p, > + const char *name, struct device *device, > + void *buf, size_t size, > + size_t offset, unsigned int pread_flags); > + > +#else > + > +#define REQUEST_FIRMWARE_INTO_BUF request_firmware_into_buf > + > +#endif > + > +#endif Please clean this up, the code must reflect only the code upstream. No config stuff like this should be used on the driver. I had to stop my review here. Luis

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stable-rc 4.19: NETDEV WATCHDOG: eth0 (asix): transmit queue 0 timed out - net/sched/sch_generic.c:466 dev_watchdog

by Naresh Kamboju

While running selftests bpf test_sysctl on stable rc 4.19 branch kernel on arm64 hikey device. The following warning was noticed. [ 118.957395] test_bpf: #296 BPF_MAXINSNS: exec all MSH [ 148.966435] ------------[ cut here ]------------ [ 148.988349] NETDEV WATCHDOG: eth0 (asix): transmit queue 0 timed out [ 149.000832] WARNING: CPU: 0 PID: 0 at /usr/src/kernel/net/sched/sch_generic.c:466 dev_watchdog+0x2b4/0x2c0 [ 149.016470] Modules linked in: test_bpf(+) wl18xx wlcore mac80211 cfg80211 crc32_ce hci_uart crct10dif_ce btbcm snd_soc_audio_graph_card bluetooth snd_soc_simple_card_utils adv7511 cec wlcore_sdio kirin_drm dw_drm_dsi rfkill drm_kms_helper drm drm_panel_orientation_quirks fuse [last unloaded: test_bpf] [ 149.056507] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.19.121-rc1 #1 [ 149.069594] Hardware name: HiKey Development Board (DT) [ 149.081514] pstate: 80000005 (Nzcv daif -PAN -UAO) [ 149.093062] pc : dev_watchdog+0x2b4/0x2c0 [ 149.103862] lr : dev_watchdog+0x2b4/0x2c0 [ 149.114575] sp : ffff000008003d10 [ 149.124613] x29: ffff000008003d10 x28: 0000000000000002 [ 149.136698] x27: 0000000000000001 x26: 00000000ffffffff [ 149.148810] x25: 0000000000000180 x24: ffff800074c654b8 [ 149.160891] x23: ffff800074c65460 x22: ffff8000748dd680 [ 149.172993] x21: ffff00000974a000 x20: ffff800074c65000 [ 149.185065] x19: 0000000000000000 x18: ffffffffffffffff [ 149.197172] x17: 0000000000000000 x16: 0000000000000000 [ 149.209243] x15: 0000000000000001 x14: ffff000009062cd8 [ 149.221234] x13: 0000000045a6fc2a x12: ffff00000975b630 [ 149.233166] x11: 00000000ffffffff x10: ffff00000974fa48 [ 149.245023] x9 : ffff0000097e3000 x8 : ffff00000974fa48 [ 149.256818] x7 : ffff000008173694 x6 : ffff800077ee62d0 [ 149.268639] x5 : ffff800077ee62d0 x4 : 0000000000000000 [ 149.280412] x3 : ffff800077eef6c8 x2 : 0000000000000103 [ 149.292120] x1 : d13523b333b73d00 x0 : 0000000000000000 [ 149.303783] Call trace: [ 149.312481] dev_watchdog+0x2b4/0x2c0 [ 149.322463] call_timer_fn+0xbc/0x3f0 [ 149.332463] expire_timers+0x104/0x220 [ 149.342493] run_timer_softirq+0xec/0x1a8 [ 149.352784] __do_softirq+0x114/0x554 [ 149.362668] irq_exit+0x144/0x150 [ 149.372235] __handle_domain_irq+0x6c/0xc0 [ 149.382633] gic_handle_irq+0x60/0xb0 [ 149.392606] el1_irq+0xb4/0x130 [ 149.402031] cpuidle_enter_state+0xbc/0x3f0 [ 149.412572] cpuidle_enter+0x34/0x48 [ 149.422539] call_cpuidle+0x44/0x78 [ 149.432410] do_idle+0x228/0x2a8 [ 149.441959] cpu_startup_entry+0x2c/0x30 [ 149.452185] rest_init+0x25c/0x270 [ 149.461821] start_kernel+0x468/0x494 [ 149.471659] irq event stamp: 5706193 [ 149.481376] hardirqs last enabled at (5706192): [<ffff00000817376c>] console_unlock+0x424/0x638 [ 149.496628] hardirqs last disabled at (5706193): [<ffff000008081490>] do_debug_exception+0xf8/0x1d0 [ 149.512207] softirqs last enabled at (5706160): [<ffff0000080f94a8>] _local_bh_enable+0x28/0x48 [ 149.527590] softirqs last disabled at (5706161): [<ffff0000080f9bb4>] irq_exit+0x144/0x150 [ 149.542410] ---[ end trace 4c7bd8e08a6a3d65 ]--- [ 177.828500] jited:1 1366234 PASS ref: https://qa-reports.linaro.org/lkft/linux-stable-rc-4.19-oe/build/v4.19.120-… metadata: git branch: linux-4.19.y git repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git make_kernelversion: 4.19.121-rc1 kernel-config: http://snapshots.linaro.org/openembedded/lkft/lkft/sumo/hikey/lkft/linux-st… -- Linaro LKFT https://lkft.linaro.org

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[ANN] linux-arts v2.0 update

by Shuah Khan

linux-arts git has been updated with the new reproducers from https://github.com/dvyukov/syzkaller-repros.git - a total of 1138 new linux reproducers - new script to collect reprogs from file system - updates to README.md - Updates to README on how linux-arts is synced with syzkaller-repros.git This update can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-arts.git thanks, -- Shuah ----------------------------------------------------- Author: Shuah Khan <skhan(a)linuxfoundation.org linux-arts: Update README with process information Author: Dmitry Vyukov <dvyukov(a)google.com linux: add 170 new repros from syzbot Author: Dmitry Vyukov <dvyukov(a)google.com> linux: add 270 new local repros Author: Jukka Kaartinen <jukka.kaartinen(a)unikie.com> Add reproducers from local builds Author: Jukka Kaartinen <jukka.kaartinen(a)unikie.com> Add script to collect reprogs from file system Author: Dmitry Vyukov <dvyukov(a)google.com> Update README.md Author: Dmitry Vyukov <dvyukov(a)google.com> update linux reproducers -----------------------------------------------------

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x86_64: 5.6.0: locking/lockdep.c:1155 lockdep_register_key

by Naresh Kamboju

On Linux mainline kernel 5.6.0 running kselftest on i386 kernel running on x86_64 devices we have noticed this kernel warning. [ 0.000000] Linux version 5.6.0 (oe-user@oe-host) (gcc version 7.3.0 (GCC)) #1 SMP Mon Apr 6 17:31:22 UTC 2020 <> [ 143.321511] ------------[ cut here ]------------ [ 143.326180] WARNING: CPU: 1 PID: 1515 at /usr/src/kernel/kernel/locking/lockdep.c:1155 lockdep_register_key+0x150/0x180 [ 143.336958] Modules linked in: sch_ingress veth algif_hash x86_pkg_temp_thermal fuse [ 143.344698] CPU: 1 PID: 1515 Comm: ip Tainted: G W 5.6.0 #1 [ 143.351562] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS 2.0b 07/27/2017 [ 143.359034] EIP: lockdep_register_key+0x150/0x180 [ 143.363739] Code: ff ff a1 88 4c 2a dc 85 c0 0f 85 ef fe ff ff 68 27 02 f9 db 68 a5 7a f7 db e8 0c 5b fa ff 0f 0b 59 58 e9 d7 fe ff ff 8d 76 00 <0f> 0b 8d 65 f8 5b 5e 5d c3 8d b4 26 00 00 00 00 89 c2 b8 68 68 99 [ 143.382485] EAX: 00000001 EBX: dc329ea8 ECX: 00000001 EDX: dc3299a8 [ 143.388751] ESI: 00000001 EDI: c7316000 EBP: c610fe10 ESP: c610fe08 [ 143.395014] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00010202 [ 143.401792] CR0: 80050033 CR2: b7dd70c0 CR3: 20672000 CR4: 003406d0 [ 143.408051] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [ 143.414315] DR6: fffe0ff0 DR7: 00000400 [ 143.418144] Call Trace: [ 143.420592] alloc_netdev_mqs+0xc6/0x3c0 [ 143.424520] __ip_tunnel_create+0xa1/0x1d0 [ 143.428614] ? ipgre_tap_setup+0x50/0x50 [ 143.432535] ? mutex_lock_nested+0x19/0x20 [ 143.436634] ip_tunnel_init_net+0x125/0x340 [ 143.440823] erspan_init_net+0x1d/0x20 [ 143.444580] ops_init+0x34/0x180 [ 143.447815] setup_net+0xe7/0x230 [ 143.451134] copy_net_ns+0xe0/0x210 [ 143.454625] create_new_namespaces+0xf5/0x290 [ 143.458984] unshare_nsproxy_namespaces+0x47/0xa0 [ 143.463691] ksys_unshare+0x19e/0x330 [ 143.467354] ? __might_fault+0x41/0x80 [ 143.471102] __ia32_sys_unshare+0xf/0x20 [ 143.475026] do_fast_syscall_32+0x7f/0x330 [ 143.479126] entry_SYSENTER_32+0xaa/0x102 [ 143.483135] EIP: 0xb7f77ce1 [ 143.485926] Code: 5e 5d c3 8d b6 00 00 00 00 b8 40 42 0f 00 eb c1 8b 04 24 c3 8b 1c 24 c3 8b 34 24 c3 8b 3c 24 c3 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d 76 00 58 b8 77 00 00 00 cd 80 90 8d 76 [ 143.504662] EAX: ffffffda EBX: 40000000 ECX: 080a8b31 EDX: 00000000 [ 143.510920] ESI: 00000001 EDI: bf833230 EBP: bf830fc0 ESP: bf830f7c [ 143.517177] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b EFLAGS: 00000292 [ 143.523959] irq event stamp: 5894 [ 143.527275] hardirqs last enabled at (5893): [<dbc0225a>] _raw_spin_unlock_irqrestore+0x2a/0x50 [ 143.536054] hardirqs last disabled at (5894): [<dae019dc>] trace_hardirqs_off_thunk+0xc/0x10 [ 143.544487] softirqs last enabled at (5882): [<dba45069>] inet6_fill_ifla6_attrs+0x3b9/0x400 [ 143.553004] softirqs last disabled at (5880): [<dba4504b>] inet6_fill_ifla6_attrs+0x39b/0x400 [ 143.561514] ---[ end trace dbec531a9fb3b99c ]--- Full test log, https://lkft.validation.linaro.org/scheduler/job/1341969#L5766 -- Linaro LKFT https://lkft.linaro.org

5 years

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[PATCH] kselftests: dmabuf-heaps: Fix confused return value on expected error testing

by John Stultz

When I added the expected error testing, I forgot I need to set the return to zero when we successfully see an error. Without this change we only end up testing a single heap before the test quits. Cc: Shuah Khan <shuah(a)kernel.org> Cc: Sumit Semwal <sumit.semwal(a)linaro.org> Cc: Benjamin Gaignard <benjamin.gaignard(a)linaro.org> Cc: Brian Starkey <brian.starkey(a)arm.com> Cc: Laura Abbott <labbott(a)redhat.com> Cc: "Andrew F. Davis" <afd(a)ti.com> Cc: linux-kselftest(a)vger.kernel.org Signed-off-by: John Stultz <john.stultz(a)linaro.org> --- tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c b/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c index cd5e1f602ac9..909da9cdda97 100644 --- a/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c +++ b/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c @@ -351,6 +351,7 @@ static int test_alloc_errors(char *heap_name) } printf("Expected error checking passed\n"); + ret = 0; out: if (dmabuf_fd >= 0) close(dmabuf_fd); -- 2.17.1

5 years

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