[rcu:dev.2020.05.26a] BUILD REGRESSION 63fdce1252f16032c9e1eb7244bb674ba4f84855

From: kbuild test robot
Date: Mon Jun 01 2020 - 01:53:01 EST

tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev.2020.05.26a
branch HEAD: 63fdce1252f16032c9e1eb7244bb674ba4f84855 fixup! refperf: Provide module parameter to specify number of experiments

Error/Warning in current branch:

m68k-linux-ld: refperf.c:(.text+0x8f2): undefined reference to `__udivdi3'
refperf.c:(.text+0x762): undefined reference to `__umoddi3'

Error/Warning ids grouped by kconfigs:

`-- m68k-allyesconfig
|-- m68k-linux-ld:refperf.c:(.text):undefined-reference-to-__udivdi3
`-- refperf.c:(.text):undefined-reference-to-__umoddi3

i386-tinyconfig vmlinux size:

TOTAL TEXT built-in.*
-233 -233 8747b07d1944 Merge branch 'kcsan-dev.2020.04.13c' into HEAD
0 0 03e8e094dad9 Merge branch 'lkmm-dev.2020.05.16a' into HEAD
0 0 17e0ee2a3ec9 torture: Remove qemu dependency on EFI firmware
0 0 c58148777978 torture: Add script to smoke-test commits in a branch
+38 +38 396a79cc6818 fork: Annotate a data race in vm_area_dup()
0 0 8035e0fc710a x86/mm/pat: Mark an intentional data race
0 0 d7a51c24ee4b rculist: Add ASSERT_EXCLUSIVE_ACCESS() to __list_splice_init
0 0 e5efa2f1b7b6 locktorture: Use true and false to assign to bool variables
0 0 7514d7f181ab srcu: Fix a typo in comment "amoritized"->"amortized"
0 0 9dbd776542e3 rcu: Simplify the calculation of rcu_state.ncpus
0 0 df12d657bcc0 docs: RCU: Convert checklist.txt to ReST
0 0 fdfeb779e1bd docs: RCU: Convert lockdep-splat.txt to ReST
0 0 68b5951f7eb2 docs: RCU: Convert lockdep.txt to ReST
0 0 ce9edc0c8a82 docs: RCU: Convert rculist_nulls.txt to ReST
0 0 1bee818b03c7 docs: RCU: Convert torture.txt to ReST
0 0 9100131711bc docs: RCU: Convert rcuref.txt to ReST
0 0 080f194cfa87 docs: RCU: Convert stallwarn.txt to ReST
0 0 6999f47d8456 docs: RCU: Don't duplicate chapter names in rculist_nulls.rs
0 0 55ce2e8178f2 rcutorture: Add races with task-exit processing
0 0 1c60a5e52538 torture: Set configfile variable to current scenario
0 0 9969401f1706 rcutorture: Handle non-statistic bang-string error messages
0 0 6f099e1b362b rcutorture: NULL rcu_torture_current earlier in cleanup code
0 0 6816417616c4 kcsan: Add test suite
0 0 848d16e04f52 doc: Timer problems can cause RCU CPU stall warnings
0 0 2364a9f967ec rcu: Add callbacks-invoked counters
0 0 2775724beeef rcu: Add comment documenting rcu_callback_map's purpose
0 0 +138684 bfd78bca7bdf Revert b8c17e6664c4 ("rcu: Maintain special bits at bottom o
+1 0 -138684 8903088434e7 rcu/tree: Add better tracing for dyntick-idle
-1 0 c0601bb42994 rcu/tree: Clean up dynticks counter usage
0 0 3f3baaf3ac07 rcu/tree: Remove dynticks_nmi_nesting counter
+1 0 725e4ad9e020 trace: events: rcu: Change description of rcu_dyntick trace
0 0 a9b73fda34ec torture: Remove whitespace from identify_qemu_vcpus output
-1 0 +138684 6267bacdff81 torture: Add --allcpus argument to the kvm.sh script
+1 0 -138684 5c6aa32472cb rcu: Grace-period-kthread related sleeps to idle priority
-1 0 +138684 f334f4fee6e2 rcu: Priority-boost-related sleeps to idle priority
0 0 0 d49cb59f19b6 rcu: No-CBs-related sleeps to idle priority
+1 0 -138684 4cc4ce9b67ec rcu: Expedited grace-period sleeps to idle priority
-1 0 +138684 cef0575caddb rcu-tasks: Convert sleeps to idle priority
0 0 0 988aef3524e2 fs/btrfs: Add cond_resched() for try_release_extent_mapping(
0 0 -138684 70ca490c7ab3 locking/osq_lock: Annotate a data race in osq_lock
+1 0 80fa4f7b355d doc: Tasks RCU must protect instructions before trampoline
-1 0 +138684 1b397c884f7a doc: Update comment from rsp->rcu_gp_seq to rsp->gp_seq
0 0 -138684 dedad0a2118a tick/nohz: Narrow down noise while setting current task's ti
0 0 +138684 3055759634b2 rcu: fix some kernel-doc warnings
+1 0 -138684 cf10e7d90417 rcu: Remove initialized but unused rnp from check_slow_task(
-1 0 +138684 af17eef88571 rcu: Mark rcu_nmi_enter() call to rcu_cleanup_after_idle() n
0 0 -138684 55f712e9bd7b rcuperf: Remove useless while loops around wait_event
0 0 +138684 786a25497743 refperf: Add a test to measure performance of read-side sync
0 0 0 dc58d3c31f1f rcuperf: Add comments explaining the high reader overhead
0 0 -138684 b2ff7128cdf1 torture: Add refperf to the rcutorture scripting
0 0 7dde0e35f67b refperf: Add holdoff parameter to allow CPUs to come online
0 0 +138684 2ba85f14b266 refperf: Hoist function-pointer calls out of the loop
0 0 -138684 bd5b16d6c88d refperf: Allow decimal nanoseconds
0 0 +138684 4cce30d135de refperf: Convert nreaders to a module parameter
0 0 -138684 8bd29f7b847e refperf: Provide module parameter to specify number of exper
0 0 d18ecae2bc2b refperf: Dynamically allocate experiment-summary output buff
0 0 10fa2bf34a50 refperf: Dynamically allocate thread-summary output buffer
0 0 0684e3f4bf1b srcu: Avoid local_irq_save() before acquiring spinlock_t
0 0 63b2b8b35a71 refperf: Make functions static
0 0 e8a82e9631ec refperf: Tune reader measurement interval
0 0 f703103e9e7f refperf: Convert reader_task structure's "start" field to in
0 0 ffc241495521 refperf: More closely synchronize reader start times
0 0 568bba215891 rcuperf: Fix kfree_mult to match printk() format
0 0 aec1425c01bc refperf: Add warmup and cooldown processing phases
0 0 bd2d77c5eefd refperf: Label experiment-number column "Runs"
0 0 eede76664b37 refperf: Output per-experiment data points
0 0 bfd607210803 fixup! refperf: Add holdoff parameter to allow CPUs to come
0 0 7f5a958790d1 fixup! refperf: Convert nreaders to a module parameter
0 0 63fdce1252f1 fixup! refperf: Provide module parameter to specify number o
-189 -189 b1fcf9b83c41..63fdce1252f1 (ALL COMMITS)

elapsed time: 7588m

configs tested: 84
configs skipped: 1

arm defconfig
arm allyesconfig
arm allmodconfig
arm allnoconfig
arm64 allyesconfig
arm64 defconfig
arm64 allmodconfig
arm64 allnoconfig
mips malta_kvm_guest_defconfig
arm socfpga_defconfig
nds32 allnoconfig
mips malta_defconfig
arc alldefconfig
arm orion5x_defconfig
i386 allnoconfig
i386 allyesconfig
i386 defconfig
i386 debian-10.3
ia64 allmodconfig
ia64 allnoconfig
ia64 defconfig
ia64 allyesconfig
m68k allmodconfig
m68k sun3_defconfig
m68k defconfig
m68k allnoconfig
m68k allyesconfig
nds32 defconfig
csky allyesconfig
csky defconfig
alpha defconfig
alpha allyesconfig
xtensa allyesconfig
h8300 allyesconfig
h8300 allmodconfig
xtensa defconfig
arc defconfig
sh allmodconfig
sh allnoconfig
microblaze allnoconfig
arc allyesconfig
nios2 defconfig
nios2 allyesconfig
openrisc defconfig
c6x allyesconfig
c6x allnoconfig
openrisc allyesconfig
mips allyesconfig
mips allnoconfig
mips allmodconfig
parisc allyesconfig
parisc allmodconfig
parisc allnoconfig
parisc defconfig
powerpc defconfig
powerpc allyesconfig
powerpc rhel-kconfig
powerpc allmodconfig
powerpc allnoconfig
riscv allnoconfig
riscv defconfig
riscv allyesconfig
riscv allmodconfig
s390 allnoconfig
s390 allmodconfig
s390 allyesconfig
s390 defconfig
sparc allyesconfig
sparc defconfig
sparc64 defconfig
sparc64 allnoconfig
sparc64 allyesconfig
sparc64 allmodconfig
um allnoconfig
um allmodconfig
um allyesconfig
um defconfig
x86_64 rhel-7.6-kselftests
x86_64 rhel-7.2-clear
x86_64 lkp
x86_64 fedora-25
x86_64 kexec
x86_64 rhel
x86_64 rhel-7.6

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