On 2/28/21 11:33 PM, Paul E. McKenney wrote:
On Sun, Feb 28, 2021 at 09:51:35PM +0100, Helge Deller wrote:
Adding parisc-parisc mailing list...
On 2/28/21 6:05 AM, Paul E. McKenney wrote:
On Sun, Feb 28, 2021 at 12:08:08PM +0800, kernel test robot wrote:
Hi Paul,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 5695e51619745d4fe3ec2506a2f0cd982c5e27a4
commit: 1fbeb3a8c4de29433a8d230ee600b13d369b6c0f refperf: Rename refperf.c to refscale.c and change internal names
date: 8 months ago
config: parisc-randconfig-s031-20210228 (attached as .config)
compiler: hppa64-linux-gcc (GCC) 9.3.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.3-241-geaceeafa-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1fbeb3a8c4de29433a8d230ee600b13d369b6c0f
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 1fbeb3a8c4de29433a8d230ee600b13d369b6c0f
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=parisc
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>
All errors (new ones prefixed by >>):
I must confess that I have no idea what I can do about these errors.
Did the kernel maybe grow larger than can be handled by the PA-RISC
toolchain?
No, I assume it's because the function calls from the .init section are
located too far away from the other code. Reason is probably because
huge pages are selected and thus I tried to pack the init section so that
it can get discarded after bootup.
I'll look into it now...
I think the only way to fix this in a clean way is to
enable CONFIG_MLONGCALLS, which lets gcc use -mlong-calls compiler
option and thus creates far calls.
The problem is, that those calls are far more less performant, which one
usually don't want to use in production kernels.
In addition, typical Linux distribution kernels have most
drivers built as modules and as such don't need this option.
One way I can think of to work around that issue is, that if Kconfig detects
that we build a test robot kernel, simply to enable this option.
That way the test robot still builds everything.
Is there a way to detect at compile/build time if the kernel
is configured/built by the test robot? Is there maybe some config option
or environment variable set which could be used?
Maybe someone has another/better idea as well?
Helge
hppa64-linux-ld: init/main.o(.init.text+0xdd8): cannot reach rest_init
init/main.o: in function `arch_call_rest_init':
(.init.text+0xdd8): relocation truncated to fit: R_PARISC_PCREL22F against symbol `rest_init' defined in .ref.text section in init/main.o
hppa64-linux-ld: init/main.o(.init.text+0x13d8): cannot reach build_all_zonelists
init/main.o: in function `start_kernel':
(.init.text+0x13d8): relocation truncated to fit: R_PARISC_PCREL22F against symbol `build_all_zonelists' defined in .ref.text section in mm/page_alloc.o
hppa64-linux-ld: init/main.o(.init.text+0x176c): cannot reach profile_init
(.init.text+0x176c): relocation truncated to fit: R_PARISC_PCREL22F against symbol `profile_init' defined in .ref.text section in kernel/profile.o
hppa64-linux-ld: init/main.o(.init.text+0x1ac0): cannot reach wait_for_completion
init/main.o: in function `kernel_init_freeable':
(.init.text+0x1ac0): relocation truncated to fit: R_PARISC_PCREL22F against symbol `wait_for_completion' defined in .sched.text section in kernel/sched/completion.o
hppa64-linux-ld: init/main.o(.ref.text+0x1c): cannot reach rcu_scheduler_starting
init/main.o: in function `rest_init':
(.ref.text+0x1c): relocation truncated to fit: R_PARISC_PCREL22F against symbol `rcu_scheduler_starting' defined in .init.text section in kernel/rcu/srcutiny.o
hppa64-linux-ld: init/main.o(.ref.text+0x17c): cannot reach unknown
init/main.o: in function `kernel_init':
(.ref.text+0x17c): relocation truncated to fit: R_PARISC_PCREL22F against `kernel_init_freeable'
hppa64-linux-ld: arch/parisc/mm/init.o(.ref.text+0x78): cannot reach unknown
arch/parisc/mm/init.o: in function `free_initmem':
(.ref.text+0x78): relocation truncated to fit: R_PARISC_PCREL22F against `map_pages'
hppa64-linux-ld: arch/parisc/mm/init.o(.ref.text+0xa0): cannot reach unknown
(.ref.text+0xa0): relocation truncated to fit: R_PARISC_PCREL22F against `map_pages'
hppa64-linux-ld: arch/parisc/mm/init.o(.ref.text+0xc4): cannot reach unknown
(.ref.text+0xc4): relocation truncated to fit: R_PARISC_PCREL22F against `map_pages'
hppa64-linux-ld: kernel/printk/printk.o(.init.text+0x768): cannot reach _raw_spin_lock
kernel/printk/printk.o: in function `setup_log_buf':
(.init.text+0x768): relocation truncated to fit: R_PARISC_PCREL22F against symbol `_raw_spin_lock' defined in .spinlock.text section in kernel/locking/spinlock.o
hppa64-linux-ld: kernel/printk/printk.o(.init.text+0x7c4): cannot reach _raw_spin_unlock
(.init.text+0x7c4): additional relocation overflows omitted from the output
hppa64-linux-ld: kernel/cgroup/cgroup.o(.init.text+0x228): cannot reach mutex_lock
hppa64-linux-ld: kernel/cgroup/cgroup.o(.init.text+0x440): cannot reach mutex_unlock
hppa64-linux-ld: kernel/cgroup/cgroup.o(.init.text+0x7a0): cannot reach mutex_lock
hppa64-linux-ld: kernel/cgroup/cgroup.o(.init.text+0x878): cannot reach mutex_unlock
hppa64-linux-ld: kernel/cgroup/cgroup.o(.init.text+0xad4): cannot reach mutex_lock
hppa64-linux-ld: kernel/cgroup/cgroup.o(.init.text+0xafc): cannot reach mutex_unlock
hppa64-linux-ld: kernel/resource.o(.init.text+0x32c): cannot reach _raw_write_lock
hppa64-linux-ld: kernel/resource.o(.init.text+0x4f8): cannot reach _raw_write_unlock
hppa64-linux-ld: kernel/time/clocksource.o(.init.text+0x90): cannot reach mutex_lock
hppa64-linux-ld: kernel/time/clocksource.o(.init.text+0xc4): cannot reach mutex_unlock
hppa64-linux-ld: kernel/time/clocksource.o(.init.text+0x1b8): cannot reach mutex_lock
hppa64-linux-ld: kernel/time/clocksource.o(.init.text+0x208): cannot reach mutex_unlock
hppa64-linux-ld: kernel/workqueue.o(.init.text+0xa8): cannot reach mutex_lock
hppa64-linux-ld: kernel/workqueue.o(.init.text+0x128): cannot reach mutex_unlock
hppa64-linux-ld: kernel/workqueue.o(.init.text+0x354): cannot reach mutex_lock
hppa64-linux-ld: kernel/workqueue.o(.init.text+0x388): cannot reach mutex_unlock
hppa64-linux-ld: kernel/user.o(.init.text+0x80): cannot reach _raw_spin_lock_irq
hppa64-linux-ld: kernel/user.o(.init.text+0xb8): cannot reach _raw_spin_unlock_irq
hppa64-linux-ld: kernel/rcu/refscale.o(.init.text+0x228): cannot reach schedule_timeout_uninterruptible
hppa64-linux-ld: kernel/time/timekeeping.o(.init.text+0x228): cannot reach _raw_spin_lock_irqsave
hppa64-linux-ld: kernel/time/timekeeping.o(.init.text+0x320): cannot reach _raw_spin_unlock_irqrestore
hppa64-linux-ld: kernel/time/sched_clock.o(.init.text+0x170): cannot reach __muldi3
hppa64-linux-ld: kernel/time/sched_clock.o(.init.text+0x214): cannot reach __udivdi3
hppa64-linux-ld: kernel/time/sched_clock.o(.init.text+0x240): cannot reach __udivdi3
hppa64-linux-ld: arch/parisc/kernel/cache.o(.init.text+0x2d4): cannot reach __muldi3
hppa64-linux-ld: arch/parisc/kernel/cache.o(.init.text+0x2ec): cannot reach __udivdi3
hppa64-linux-ld: arch/parisc/kernel/cache.o(.init.text+0x3d4): cannot reach __muldi3
hppa64-linux-ld: arch/parisc/kernel/cache.o(.init.text+0x3ec): cannot reach __udivdi3
hppa64-linux-ld: arch/parisc/kernel/firmware.o(.init.text+0x3c): cannot reach _raw_spin_lock_irqsave
hppa64-linux-ld: arch/parisc/kernel/firmware.o(.init.text+0xe8): cannot reach _raw_spin_unlock_irqrestore
hppa64-linux-ld: arch/parisc/kernel/firmware.o(.init.text+0x170): cannot reach _raw_spin_lock_irqsave
hppa64-linux-ld: arch/parisc/kernel/firmware.o(.init.text+0x288): cannot reach _raw_spin_unlock_irqrestore
hppa64-linux-ld: arch/parisc/kernel/firmware.o(.init.text+0x30c): cannot reach _raw_spin_lock_irqsave
hppa64-linux-ld: arch/parisc/kernel/firmware.o(.init.text+0x3d8): cannot reach _raw_spin_unlock_irqrestore
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0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
