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Real-time linux kernel - Printable Version

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Real-time linux kernel - Artyom - 03-02-2016

Development of real-time kernel.
This thread created for all those interested in the development of real-time kernel. real-time Linux kernel will allow to extend the scope of possible application Pine64. For example in avionics (autopilot for drone), automation systems, etc.

RE: Real-time linux kernel - Artyom - 03-06-2016

This is link to pure kernel 3.10.65 with PREEMPT RT patch installed. Apparently a patch is installed correctly.

------------ Patching process output -----------------
patching file Documentation/hwlat_detector.txt
patching file Documentation/sysrq.txt
patching file Documentation/trace/histograms.txt
patching file arch/Kconfig
patching file arch/alpha/mm/fault.c
patching file arch/arm/Kconfig
patching file arch/arm/include/asm/switch_to.h
patching file arch/arm/include/asm/thread_info.h
patching file arch/arm/kernel/asm-offsets.c
patching file arch/arm/kernel/entry-armv.S
patching file arch/arm/kernel/perf_event_cpu.c
patching file arch/arm/kernel/process.c
patching file arch/arm/kernel/signal.c
patching file arch/arm/kernel/unwind.c
patching file arch/arm/mach-at91/at91rm9200_time.c
patching file arch/arm/mach-at91/at91sam926x_time.c
patching file arch/arm/mach-exynos/platsmp.c
patching file arch/arm/mach-msm/platsmp.c
patching file arch/arm/mach-omap2/omap-smp.c
patching file arch/arm/mach-prima2/platsmp.c
patching file arch/arm/mach-spear/platsmp.c
patching file arch/arm/mach-ux500/platsmp.c
patching file arch/arm/mm/fault.c
patching file arch/arm/mm/highmem.c
patching file arch/arm/plat-versatile/platsmp.c
patching file arch/avr32/mm/fault.c
patching file arch/cris/mm/fault.c
patching file arch/frv/mm/fault.c
patching file arch/ia64/mm/fault.c
patching file arch/m32r/mm/fault.c
patching file arch/m68k/mm/fault.c
patching file arch/microblaze/mm/fault.c
patching file arch/mips/Kconfig
patching file arch/mips/kernel/signal.c
patching file arch/mips/mm/fault.c
patching file arch/mn10300/mm/fault.c
patching file arch/parisc/mm/fault.c
patching file arch/powerpc/Kconfig
patching file arch/powerpc/include/asm/thread_info.h
patching file arch/powerpc/kernel/asm-offsets.c
patching file arch/powerpc/kernel/entry_32.S
patching file arch/powerpc/kernel/entry_64.S
patching file arch/powerpc/kernel/irq.c
patching file arch/powerpc/kernel/misc_32.S
patching file arch/powerpc/kernel/misc_64.S
patching file arch/powerpc/kernel/time.c
patching file arch/powerpc/mm/fault.c
patching file arch/powerpc/platforms/52xx/mpc52xx_pic.c
patching file arch/powerpc/platforms/8xx/m8xx_setup.c
patching file arch/powerpc/sysdev/cpm1.c
patching file arch/s390/mm/fault.c
patching file arch/score/mm/fault.c
patching file arch/sh/kernel/irq.c
patching file arch/sh/mm/fault.c
patching file arch/sparc/Kconfig
patching file arch/sparc/kernel/irq_64.c
patching file arch/sparc/kernel/pcr.c
patching file arch/sparc/kernel/setup_32.c
patching file arch/sparc/kernel/setup_64.c
patching file arch/sparc/mm/fault_32.c
patching file arch/sparc/mm/fault_64.c
patching file arch/tile/mm/fault.c
patching file arch/um/kernel/trap.c
patching file arch/x86/Kconfig
patching file arch/x86/crypto/aesni-intel_glue.c
patching file arch/x86/crypto/cast5_avx_glue.c
patching file arch/x86/crypto/glue_helper.c
patching file arch/x86/include/asm/signal.h
patching file arch/x86/include/asm/stackprotector.h
patching file arch/x86/include/asm/thread_info.h
patching file arch/x86/kernel/apic/io_apic.c
patching file arch/x86/kernel/asm-offsets.c
patching file arch/x86/kernel/cpu/mcheck/mce.c
patching file arch/x86/kernel/entry_32.S
patching file arch/x86/kernel/entry_64.S
patching file arch/x86/kernel/irq_32.c
patching file arch/x86/kernel/irq_64.c
patching file arch/x86/kernel/irq_work.c
patching file arch/x86/kernel/process_32.c
patching file arch/x86/kernel/signal.c
patching file arch/x86/kernel/traps.c
patching file arch/x86/kvm/x86.c
patching file arch/x86/mm/fault.c
patching file arch/x86/mm/highmem_32.c
patching file arch/x86/mm/iomap_32.c
patching file arch/xtensa/mm/fault.c
patching file block/blk-core.c
patching file block/blk-ioc.c
patching file block/blk-iopoll.c
patching file block/blk-softirq.c
patching file crypto/algapi.c
patching file crypto/api.c
patching file crypto/internal.h
patching file drivers/acpi/acpica/acglobal.h
patching file drivers/acpi/acpica/hwregs.c
patching file drivers/acpi/acpica/hwxface.c
patching file drivers/acpi/acpica/utmutex.c
patching file drivers/ata/libata-sff.c
patching file drivers/char/random.c
patching file drivers/clocksource/tcb_clksrc.c
patching file drivers/gpu/drm/drm_irq.c
patching file drivers/gpu/drm/i915/i915_gem.c
patching file drivers/gpu/drm/i915/i915_gem_execbuffer.c
patching file drivers/i2c/busses/i2c-omap.c
patching file drivers/ide/alim15x3.c
patching file drivers/ide/hpt366.c
patching file drivers/ide/ide-io-std.c
patching file drivers/ide/ide-io.c
patching file drivers/ide/ide-iops.c
patching file drivers/ide/ide-probe.c
patching file drivers/ide/ide-taskfile.c
patching file drivers/infiniband/ulp/ipoib/ipoib_multicast.c
patching file drivers/input/gameport/gameport.c
patching file drivers/leds/trigger/Kconfig
patching file drivers/md/bcache/Kconfig
patching file drivers/md/dm.c
patching file drivers/md/raid5.c
patching file drivers/md/raid5.h
patching file drivers/misc/Kconfig
patching file drivers/misc/Makefile
patching file drivers/misc/hwlat_detector.c
patching file drivers/mmc/host/mmci.c
patching file drivers/net/Kconfig
patching file drivers/net/ethernet/3com/3c59x.c
patching file drivers/net/ethernet/atheros/atl1c/atl1c_main.c
patching file drivers/net/ethernet/atheros/atl1e/atl1e_main.c
patching file drivers/net/ethernet/chelsio/cxgb/sge.c
patching file drivers/net/ethernet/dec/tulip/tulip_core.c
patching file drivers/net/ethernet/freescale/gianfar.c
patching file drivers/net/ethernet/freescale/gianfar_ethtool.c
patching file drivers/net/ethernet/freescale/gianfar_sysfs.c
patching file drivers/net/ethernet/neterion/s2io.c
patching file drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
patching file drivers/net/ethernet/realtek/8139too.c
patching file drivers/net/ethernet/tehuti/tehuti.c
patching file drivers/net/rionet.c
patching file drivers/net/wireless/orinoco/orinoco_usb.c
patching file drivers/pci/access.c
patching file drivers/scsi/fcoe/fcoe.c
patching file drivers/scsi/fcoe/fcoe_ctlr.c
patching file drivers/scsi/hpsa.c
patching file drivers/scsi/libfc/fc_exch.c
patching file drivers/scsi/qla2xxx/qla_inline.h
patching file drivers/tty/serial/8250/8250_core.c
patching file drivers/tty/serial/amba-pl011.c
patching file drivers/tty/serial/omap-serial.c
patching file drivers/tty/tty_buffer.c
patching file drivers/tty/tty_ldisc.c
patching file drivers/usb/core/hcd.c
patching file drivers/usb/gadget/f_fs.c
patching file drivers/usb/gadget/inode.c
patching file drivers/usb/host/ohci-hcd.c
patching file fs/autofs4/autofs_i.h
patching file fs/autofs4/expire.c
patching file fs/buffer.c
patching file fs/dcache.c
patching file fs/eventpoll.c
patching file fs/exec.c
patching file fs/fscache/page.c
patching file fs/jbd/checkpoint.c
patching file fs/jbd2/checkpoint.c
patching file fs/namespace.c
patching file fs/ntfs/aops.c
patching file fs/timerfd.c
patching file include/acpi/platform/aclinux.h
patching file include/asm-generic/bug.h
patching file include/linux/buffer_head.h
patching file include/linux/completion.h
patching file include/linux/cpu.h
patching file include/linux/delay.h
patching file include/linux/ftrace_event.h
patching file include/linux/hardirq.h
patching file include/linux/highmem.h
patching file include/linux/hrtimer.h
patching file include/linux/idr.h
patching file include/linux/init_task.h
patching file include/linux/interrupt.h
patching file include/linux/irq.h
patching file include/linux/irq_work.h
patching file include/linux/irqdesc.h
patching file include/linux/irqflags.h
patching file include/linux/jbd_common.h
patching file include/linux/jump_label.h
patching file include/linux/kdb.h
patching file include/linux/kernel.h
patching file include/linux/lglock.h
patching file include/linux/list.h
patching file include/linux/list_bl.h
patching file include/linux/locallock.h
patching file include/linux/mm.h
patching file include/linux/mm_types.h
patching file include/linux/mutex.h
patching file include/linux/mutex_rt.h
patching file include/linux/netdevice.h
patching file include/linux/netfilter/x_tables.h
patching file include/linux/notifier.h
patching file include/linux/page_cgroup.h
patching file include/linux/percpu.h
patching file include/linux/pid.h
patching file include/linux/preempt.h
patching file include/linux/printk.h
patching file include/linux/radix-tree.h
patching file include/linux/random.h
patching file include/linux/rcupdate.h
patching file include/linux/rcutree.h
patching file include/linux/rtmutex.h
patching file include/linux/rwlock_rt.h
patching file include/linux/rwlock_types.h
patching file include/linux/rwlock_types_rt.h
patching file include/linux/rwsem.h
patching file include/linux/rwsem_rt.h
patching file include/linux/sched.h
patching file include/linux/sched/rt.h
patching file include/linux/seqlock.h
patching file include/linux/signal.h
patching file include/linux/skbuff.h
patching file include/linux/smp.h
patching file include/linux/spinlock.h
patching file include/linux/spinlock_api_smp.h
patching file include/linux/spinlock_rt.h
patching file include/linux/spinlock_types.h
patching file include/linux/spinlock_types_nort.h
patching file include/linux/spinlock_types_raw.h
patching file include/linux/spinlock_types_rt.h
patching file include/linux/srcu.h
patching file include/linux/sysctl.h
patching file include/linux/timer.h
patching file include/linux/uaccess.h
patching file include/linux/uprobes.h
patching file include/linux/vmstat.h
patching file include/linux/wait-simple.h
patching file include/net/dst.h
patching file include/net/neighbour.h
patching file include/net/netns/ipv4.h
patching file include/trace/events/hist.h
patching file include/trace/events/latency_hist.h
patching file init/Kconfig
patching file init/Makefile
patching file init/main.c
patching file ipc/mqueue.c
patching file ipc/msg.c
patching file ipc/sem.c
patching file kernel/Kconfig.locks
patching file kernel/Kconfig.preempt
patching file kernel/Makefile
patching file kernel/cpu.c
patching file kernel/debug/kdb/kdb_io.c
patching file kernel/events/core.c
patching file kernel/exit.c
patching file kernel/fork.c
patching file kernel/futex.c
patching file kernel/hrtimer.c
patching file kernel/irq/handle.c
patching file kernel/irq/manage.c
patching file kernel/irq/settings.h
patching file kernel/irq/spurious.c
patching file kernel/irq_work.c
patching file kernel/itimer.c
patching file kernel/ksysfs.c
patching file kernel/lglock.c
patching file kernel/lockdep.c
patching file kernel/panic.c
patching file kernel/posix-cpu-timers.c
patching file kernel/posix-timers.c
patching file kernel/power/hibernate.c
patching file kernel/power/suspend.c
patching file kernel/printk.c
patching file kernel/rcupdate.c
patching file kernel/rcutiny.c
patching file kernel/rcutiny_plugin.h
patching file kernel/rcutree.c
patching file kernel/rcutree.h
patching file kernel/rcutree_plugin.h
patching file kernel/relay.c
patching file kernel/res_counter.c
patching file kernel/rt.c
patching file kernel/rtmutex.c
patching file kernel/rtmutex_common.h
patching file kernel/sched/core.c
patching file kernel/sched/cputime.c
patching file kernel/sched/debug.c
patching file kernel/sched/fair.c
patching file kernel/sched/features.h
patching file kernel/sched/rt.c
patching file kernel/sched/sched.h
patching file kernel/signal.c
patching file kernel/softirq.c
patching file kernel/spinlock.c
patching file kernel/stop_machine.c
patching file kernel/time/jiffies.c
patching file kernel/time/ntp.c
patching file kernel/time/tick-common.c
patching file kernel/time/tick-internal.h
patching file kernel/time/tick-sched.c
patching file kernel/time/timekeeping.c
patching file kernel/timer.c
patching file kernel/trace/Kconfig
patching file kernel/trace/Makefile
patching file kernel/trace/latency_hist.c
patching file kernel/trace/trace.c
patching file kernel/trace/trace.h
patching file kernel/trace/trace_events.c
patching file kernel/trace/trace_irqsoff.c
patching file kernel/trace/trace_output.c
patching file kernel/user.c
patching file kernel/wait-simple.c
patching file kernel/watchdog.c
patching file kernel/workqueue.c
patching file kernel/workqueue_internal.h
patching file lib/Kconfig
patching file lib/Kconfig.debug
patching file lib/Makefile
patching file lib/debugobjects.c
patching file lib/idr.c
patching file lib/locking-selftest.c
patching file lib/percpu-rwsem.c
patching file lib/radix-tree.c
patching file lib/scatterlist.c
patching file lib/smp_processor_id.c
patching file lib/spinlock_debug.c
patching file localversion-rt
patching file mm/Kconfig
patching file mm/bounce.c
patching file mm/filemap.c
patching file mm/highmem.c
patching file mm/memcontrol.c
patching file mm/memory.c
patching file mm/mmu_context.c
patching file mm/page_alloc.c
patching file mm/page_cgroup.c
patching file mm/slab.c
patching file mm/slab.h
patching file mm/slub.c
patching file mm/swap.c
patching file mm/vmalloc.c
patching file mm/vmstat.c
patching file net/core/dev.c
patching file net/core/skbuff.c
patching file net/core/sock.c
patching file net/ipv4/icmp.c
patching file net/ipv4/ip_output.c
patching file net/ipv4/sysctl_net_ipv4.c
patching file net/mac80211/rx.c
patching file net/netfilter/core.c
patching file net/packet/af_packet.c
patching file net/rds/ib_rdma.c
patching file net/sched/sch_generic.c
patching file scripts/mkcompile_h
------------ Patching process output -----------------

Link to download patched kernel 3.10.65: https://yadi.sk/d/zWpNsbfZpwbd8

What i must do next to prepare this kernel for testing on pine64?

RE: Real-time linux kernel - umiddelb - 03-06-2016

(03-06-2016, 02:23 AM)Artyom Wrote: This is link to pure kernel 3.10.65 with PREEMPT RT patch installed. Apparently a patch is installed correctly.

Are you sure?

Code:
Hunk #1 FAILED at 277.
1 out of 1 hunk FAILED -- saving rejects to file arch/arm/mm/fault.c.rej
Hunk #1 FAILED at 53.
1 out of 1 hunk FAILED -- saving rejects to file drivers/misc/Makefile.rej
Hunk #2 FAILED at 230.
1 out of 9 hunks FAILED -- saving rejects to file kernel/fork.c.rej
Hunk #1 FAILED at 47.
1 out of 31 hunks FAILED -- saving rejects to file kernel/hrtimer.c.rej
Hunk #29 FAILED at 4038.
Hunk #45 FAILED at 7450.
2 out of 46 hunks FAILED -- saving rejects to file kernel/sched/core.c.rej
Hunk #2 FAILED at 241.
1 out of 3 hunks FAILED -- saving rejects to file kernel/watchdog.c.rej
Hunk #18 FAILED at 5540.
1 out of 21 hunks FAILED -- saving rejects to file mm/page_alloc.c.rej

At least 8 patches were missed, BSP kernel ≠ mainline kernel.
The missed patches need to be reviewed.

RE: Real-time linux kernel - Artyom - 03-07-2016

(03-06-2016, 03:28 PM)umiddelb Wrote:
(03-06-2016, 02:23 AM)Artyom Wrote: This is link to pure kernel 3.10.65 with PREEMPT RT patch installed. Apparently a patch is installed correctly.

Are you sure?

Code:
Hunk #1 FAILED at 277.
1 out of 1 hunk FAILED -- saving rejects to file arch/arm/mm/fault.c.rej
Hunk #1 FAILED at 53.
1 out of 1 hunk FAILED -- saving rejects to file drivers/misc/Makefile.rej
Hunk #2 FAILED at 230.
1 out of 9 hunks FAILED -- saving rejects to file kernel/fork.c.rej
Hunk #1 FAILED at 47.
1 out of 31 hunks FAILED -- saving rejects to file kernel/hrtimer.c.rej
Hunk #29 FAILED at 4038.
Hunk #45 FAILED at 7450.
2 out of 46 hunks FAILED -- saving rejects to file kernel/sched/core.c.rej
Hunk #2 FAILED at 241.
1 out of 3 hunks FAILED -- saving rejects to file kernel/watchdog.c.rej
Hunk #18 FAILED at 5540.
1 out of 21 hunks FAILED -- saving rejects to file mm/page_alloc.c.rej

At least 8 patches were missed, BSP kernel ≠ mainline kernel.
The missed patches need to be reviewed.
Where can i get missed patches?
(03-07-2016, 12:47 AM)Artyom Wrote:
(03-06-2016, 03:28 PM)umiddelb Wrote:
(03-06-2016, 02:23 AM)Artyom Wrote: This is link to pure kernel 3.10.65 with PREEMPT RT patch installed. Apparently a patch is installed correctly.

Are you sure?

Code:
Hunk #1 FAILED at 277.
1 out of 1 hunk FAILED -- saving rejects to file arch/arm/mm/fault.c.rej
Hunk #1 FAILED at 53.
1 out of 1 hunk FAILED -- saving rejects to file drivers/misc/Makefile.rej
Hunk #2 FAILED at 230.
1 out of 9 hunks FAILED -- saving rejects to file kernel/fork.c.rej
Hunk #1 FAILED at 47.
1 out of 31 hunks FAILED -- saving rejects to file kernel/hrtimer.c.rej
Hunk #29 FAILED at 4038.
Hunk #45 FAILED at 7450.
2 out of 46 hunks FAILED -- saving rejects to file kernel/sched/core.c.rej
Hunk #2 FAILED at 241.
1 out of 3 hunks FAILED -- saving rejects to file kernel/watchdog.c.rej
Hunk #18 FAILED at 5540.
1 out of 21 hunks FAILED -- saving rejects to file mm/page_alloc.c.rej

At least 8 patches were missed, BSP kernel ≠ mainline kernel.
The missed patches need to be reviewed.
Where can i get missed patches? 
Now I'm sure that PREEMPT_RT patch is applied correctly. Still needed additional patches. where to get them?

RE: Real-time linux kernel - umiddelb - 03-07-2016

Code:
Hunk #1 FAILED at 277.
1 out of 1 hunk FAILED -- saving rejects to file arch/arm/mm/fault.c.rej
Hunk #1 FAILED at 53.
1 out of 1 hunk FAILED -- saving rejects to file drivers/misc/Makefile.rej
Hunk #2 FAILED at 230.
1 out of 9 hunks FAILED -- saving rejects to file kernel/fork.c.rej
Hunk #1 FAILED at 47.
1 out of 31 hunks FAILED -- saving rejects to file kernel/hrtimer.c.rej
Hunk #29 FAILED at 4038.
Hunk #45 FAILED at 7450.
2 out of 46 hunks FAILED -- saving rejects to file kernel/sched/core.c.rej
Hunk #2 FAILED at 241.
1 out of 3 hunks FAILED -- saving rejects to file kernel/watchdog.c.rej
Hunk #18 FAILED at 5540.
1 out of 21 hunks FAILED -- saving rejects to file mm/page_alloc.c.rej

You need to review the files with the suffix .rej to find out why a specific hunk failed, e.g run a diff between the mainline and the BSP version of the file.

RE: Real-time linux kernel - Artyom - 03-07-2016

(03-07-2016, 01:48 AM)umiddelb Wrote:
(03-07-2016, 12:47 AM)Artyom Wrote:
(03-06-2016, 03:28 PM)umiddelb Wrote:
Code:
Hunk #1 FAILED at 277.
1 out of 1 hunk FAILED -- saving rejects to file arch/arm/mm/fault.c.rej
Hunk #1 FAILED at 53.
1 out of 1 hunk FAILED -- saving rejects to file drivers/misc/Makefile.rej
Hunk #2 FAILED at 230.
1 out of 9 hunks FAILED -- saving rejects to file kernel/fork.c.rej
Hunk #1 FAILED at 47.
1 out of 31 hunks FAILED -- saving rejects to file kernel/hrtimer.c.rej
Hunk #29 FAILED at 4038.
Hunk #45 FAILED at 7450.
2 out of 46 hunks FAILED -- saving rejects to file kernel/sched/core.c.rej
Hunk #2 FAILED at 241.
1 out of 3 hunks FAILED -- saving rejects to file kernel/watchdog.c.rej
Hunk #18 FAILED at 5540.
1 out of 21 hunks FAILED -- saving rejects to file mm/page_alloc.c.rej

You need to review the files with the suffix .rej to find out why a specific hunk failed, e.g run a diff between the mainline and the BSP version of the file.
(03-07-2016, 12:47 AM)Artyom Wrote:
(03-06-2016, 03:28 PM)umiddelb Wrote:
Code:
Hunk #1 FAILED at 277.
1 out of 1 hunk FAILED -- saving rejects to file arch/arm/mm/fault.c.rej
Hunk #1 FAILED at 53.
1 out of 1 hunk FAILED -- saving rejects to file drivers/misc/Makefile.rej
Hunk #2 FAILED at 230.
1 out of 9 hunks FAILED -- saving rejects to file kernel/fork.c.rej
Hunk #1 FAILED at 47.
1 out of 31 hunks FAILED -- saving rejects to file kernel/hrtimer.c.rej
Hunk #29 FAILED at 4038.
Hunk #45 FAILED at 7450.
2 out of 46 hunks FAILED -- saving rejects to file kernel/sched/core.c.rej
Hunk #2 FAILED at 241.
1 out of 3 hunks FAILED -- saving rejects to file kernel/watchdog.c.rej
Hunk #18 FAILED at 5540.
1 out of 21 hunks FAILED -- saving rejects to file mm/page_alloc.c.rej

You need to review the files with the suffix .rej to find out why a specific hunk failed, e.g run a diff between the mainline and the BSP version of the file.
Ok

RE: Real-time linux kernel - Artyom - 03-07-2016

(03-07-2016, 02:07 AM)Artyom Wrote:
(03-07-2016, 01:48 AM)umiddelb Wrote:
(03-07-2016, 12:47 AM)Artyom Wrote:
(03-06-2016, 03:28 PM)umiddelb Wrote:
Code:
Hunk #1 FAILED at 277.
1 out of 1 hunk FAILED -- saving rejects to file arch/arm/mm/fault.c.rej
Hunk #1 FAILED at 53.
1 out of 1 hunk FAILED -- saving rejects to file drivers/misc/Makefile.rej
Hunk #2 FAILED at 230.
1 out of 9 hunks FAILED -- saving rejects to file kernel/fork.c.rej
Hunk #1 FAILED at 47.
1 out of 31 hunks FAILED -- saving rejects to file kernel/hrtimer.c.rej
Hunk #29 FAILED at 4038.
Hunk #45 FAILED at 7450.
2 out of 46 hunks FAILED -- saving rejects to file kernel/sched/core.c.rej
Hunk #2 FAILED at 241.
1 out of 3 hunks FAILED -- saving rejects to file kernel/watchdog.c.rej
Hunk #18 FAILED at 5540.
1 out of 21 hunks FAILED -- saving rejects to file mm/page_alloc.c.rej

You need to review the files with the suffix .rej to find out why a specific hunk failed, e.g run a diff between the mainline and the BSP version of the file.
(03-07-2016, 12:47 AM)Artyom Wrote:
(03-06-2016, 03:28 PM)umiddelb Wrote:
Code:
Hunk #1 FAILED at 277.
1 out of 1 hunk FAILED -- saving rejects to file arch/arm/mm/fault.c.rej
Hunk #1 FAILED at 53.
1 out of 1 hunk FAILED -- saving rejects to file drivers/misc/Makefile.rej
Hunk #2 FAILED at 230.
1 out of 9 hunks FAILED -- saving rejects to file kernel/fork.c.rej
Hunk #1 FAILED at 47.
1 out of 31 hunks FAILED -- saving rejects to file kernel/hrtimer.c.rej
Hunk #29 FAILED at 4038.
Hunk #45 FAILED at 7450.
2 out of 46 hunks FAILED -- saving rejects to file kernel/sched/core.c.rej
Hunk #2 FAILED at 241.
1 out of 3 hunks FAILED -- saving rejects to file kernel/watchdog.c.rej
Hunk #18 FAILED at 5540.
1 out of 21 hunks FAILED -- saving rejects to file mm/page_alloc.c.rej

You need to review the files with the suffix .rej to find out why a specific hunk failed, e.g run a diff between the mainline and the BSP version of the file.
Ok

@umiddelb
Can you tell me, What is the difference between BSP kernel and mainline kernel? What i must do with mainline kernel to get BSP kernel?

RE: Real-time linux kernel - umiddelb - 03-07-2016

(03-07-2016, 03:29 AM)Artyom Wrote: @umiddelb
Can you tell me, What is the difference between BSP kernel and mainline kernel? What i must do with mainline kernel to get BSP kernel?

The BSP (= Board Support Package) kernel contains patches provided by Allwinner to make the stock Linux kernel run on their SoC. Some of theses patches may interfere with the RT patches.

You can download the mainline 3.10.65 kernel here and run diffs against the BSP kernel for the files indicated above.
Then you need to identify the sections affected by the RT patch in the BSP kernel or run the patch against the mainline sources and compare the files mentioned above before and after applying the RT patch with their BSP kernel counterpart.

RE: Real-time linux kernel - Artyom - 03-07-2016

(03-07-2016, 04:16 AM)umiddelb Wrote:
(03-07-2016, 03:29 AM)Artyom Wrote: @umiddelb
Can you tell me, What is the difference between BSP kernel and mainline kernel? What i must do with mainline kernel to get BSP kernel?

The BSP (= Board Support Package) kernel contains patches provided by Allwinner to make the stock Linux kernel run on their SoC. Some of theses patches may interfere with the RT patches.

You can download the mainline 3.10.65 kernel here and run diffs against the BSP kernel for the files indicated above.
Then you need to identify the sections affected by the RT patch in the BSP kernel or run the patch against the mainline sources and compare the files mentioned above before and after applying the RT patch with their BSP kernel counterpart.

Part in BSP kernel which swears RT patch:

patching file arch/arm/mm/fault.c
Hunk #1 FAILED at 277.
1 out of 1 hunk FAILED -- saving rejects to file arch/arm/mm/fault.c.rej

patching file drivers/misc/Makefile
Hunk #1 FAILED at 53.
1 out of 1 hunk FAILED -- saving rejects to file drivers/misc/Makefile.rej

patching file kernel/fork.c
Hunk #2 FAILED at 230.
1 out of 9 hunks FAILED -- saving rejects to file kernel/fork.c.rej

patching file kernel/hrtimer.c
Hunk #1 FAILED at 47.
1 out of 31 hunks FAILED -- saving rejects to file kernel/hrtimer.c.rej

patching file kernel/sched/core.c
Hunk #29 FAILED at 4038.
Hunk #45 FAILED at 7450.
2 out of 46 hunks FAILED -- saving rejects to file kernel/sched/core.c.rej

patching file kernel/watchdog.c
Hunk #2 FAILED at 241.
1 out of 3 hunks FAILED -- saving rejects to file kernel/watchdog.c.rej

patching file mm/page_alloc.c
Hunk #18 FAILED at 5540.
1 out of 21 hunks FAILED -- saving rejects to file mm/page_alloc.c.rej

RE: Real-time linux kernel - umiddelb - 03-07-2016

I've re-mediated the rejected hunks and this time the kernel builds and boots up nicely. You can download the the kernel binary tar archive here.

Unpack with:
Code:
curl -sSL https://github.com/umiddelb/z2d/blob/master/kernel/linux-3.10.65-2-pine64-rt69+-p64.tar.xz?raw=true | sudo tar --numeric-owner -C / -xpJf -

You may find the kernel sources here.