Buildresult: linus/xtensa-allnoconfig/xtensa-gcc8 built on Aug 3 2015, 08:16

kisskb

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Status:	OK
Date/Time:	Aug 3 2015, 08:16
Duration:	0:00:29.742500
Builder:	p82
Revision:	i915: temporary fix for DP MST docking station NULL pointer dereference (`27667f4744fc5a0f3e50910e78740bac5670d18b)`
Target:	linus/xtensa-allnoconfig/xtensa-gcc8
Branch:	linus
Compiler:	xtensa-gcc8 (xtensa-linux-gcc (GCC) 4.6.3)
Config:	allnoconfig (download)
Log:	Download original No warnings found in log. Full Log # git rev-parse -q --verify 27667f4744fc5a0f3e50910e78740bac5670d18b^{commit} 27667f4744fc5a0f3e50910e78740bac5670d18b already have revision, skipping fetch # git checkout -q -f -B kisskb 27667f4744fc5a0f3e50910e78740bac5670d18b # git clean -qxdf # git log -1 commit 27667f4744fc5a0f3e50910e78740bac5670d18b Author: Linus Torvalds <torvalds@linux-foundation.org> Date: Wed Jul 29 22:18:16 2015 -0700 i915: temporary fix for DP MST docking station NULL pointer dereference Ted Ts'o reports that his Lenovo T540p ThinkPad crashes at boot if attached to the docking station. This is a regression that he was able to bisect to commit 8c7b5ccb7298: "drm/i915: Use atomic helpers for computing changed flags:" The reason seems to be the new call to drm_atomic_helper_check_modeset() added to intel_modeset_compute_config(), which in turn calls update_connector_routing(), and somehow ends up picking a NULL crtc for the connector state, causing the subsequent drm_crtc_index() to OOPS. Daniel Vetter says that the fundamental issue seems to be confusion in the encoder selection, and this isn't the right fix, but while he chases down the proper fix, this at least avoids the NULL pointer dereference and makes Ted's docking station work again. Reported-bisected-and-tested-by: Theodore Ts'o <tytso@mit.edu> Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Mani Nikula <jani.nikula@linux.intel.com> Cc: Dave Airlie <airlied@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> # < /opt/cross/gcc-4.6.3-nolibc/xtensa-linux/bin/xtensa-linux-gcc --version # < git log --format=%s --max-count=1 27667f4744fc5a0f3e50910e78740bac5670d18b # < make -j 240 ARCH=xtensa O=/home/kisskb/slave/build/linus_xtensa-allnoconfig_xtensa CROSS_COMPILE=/opt/cross/gcc-4.6.3-nolibc/xtensa-linux/bin/xtensa-linux- allnoconfig # make -j 240 ARCH=xtensa O=/home/kisskb/slave/build/linus_xtensa-allnoconfig_xtensa CROSS_COMPILE=/opt/cross/gcc-4.6.3-nolibc/xtensa-linux/bin/xtensa-linux- make[1]: Entering directory `/home/kisskb/slave/build/linus_xtensa-allnoconfig_xtensa' GEN ./Makefile scripts/kconfig/conf --silentoldconfig Kconfig make[1]: Leaving directory `/home/kisskb/slave/build/linus_xtensa-allnoconfig_xtensa' make[1]: Entering directory `/home/kisskb/slave/build/linus_xtensa-allnoconfig_xtensa' CHK include/config/kernel.release UPD include/config/kernel.release GEN ./Makefile WRAP arch/xtensa/include/generated/asm/bitsperlong.h WRAP arch/xtensa/include/generated/asm/bug.h WRAP arch/xtensa/include/generated/asm/clkdev.h WRAP arch/xtensa/include/generated/asm/cputime.h WRAP arch/xtensa/include/generated/asm/device.h WRAP arch/xtensa/include/generated/asm/div64.h WRAP arch/xtensa/include/generated/asm/emergency-restart.h WRAP arch/xtensa/include/generated/asm/errno.h WRAP arch/xtensa/include/generated/asm/exec.h WRAP arch/xtensa/include/generated/asm/fcntl.h WRAP arch/xtensa/include/generated/asm/hardirq.h WRAP arch/xtensa/include/generated/asm/ioctl.h WRAP arch/xtensa/include/generated/asm/irq_regs.h WRAP arch/xtensa/include/generated/asm/irq_work.h WRAP arch/xtensa/include/generated/asm/kdebug.h WRAP arch/xtensa/include/generated/asm/kmap_types.h WRAP arch/xtensa/include/generated/asm/local.h WRAP arch/xtensa/include/generated/asm/linkage.h WRAP arch/xtensa/include/generated/asm/mcs_spinlock.h WRAP arch/xtensa/include/generated/asm/local64.h WRAP arch/xtensa/include/generated/asm/mm-arch-hooks.h WRAP arch/xtensa/include/generated/asm/percpu.h WRAP arch/xtensa/include/generated/asm/preempt.h WRAP arch/xtensa/include/generated/asm/kvm_para.h WRAP arch/xtensa/include/generated/asm/resource.h WRAP arch/xtensa/include/generated/asm/sections.h WRAP arch/xtensa/include/generated/asm/siginfo.h WRAP arch/xtensa/include/generated/asm/statfs.h WRAP arch/xtensa/include/generated/asm/termios.h WRAP arch/xtensa/include/generated/asm/topology.h WRAP arch/xtensa/include/generated/asm/trace_clock.h WRAP arch/xtensa/include/generated/asm/xor.h CHK include/generated/uapi/linux/version.h UPD include/generated/uapi/linux/version.h CHK include/generated/utsrelease.h UPD include/generated/utsrelease.h Using /home/kisskb/slave/src as source for kernel HOSTCC scripts/sortextable CC scripts/mod/empty.o HOSTCC scripts/mod/mk_elfconfig CC scripts/mod/devicetable-offsets.s GEN scripts/mod/devicetable-offsets.h MKELF scripts/mod/elfconfig.h HOSTCC scripts/mod/modpost.o HOSTCC scripts/mod/file2alias.o HOSTCC scripts/mod/sumversion.o HOSTLD scripts/mod/modpost CHK include/generated/timeconst.h CC kernel/bounds.s UPD include/generated/timeconst.h CHK include/generated/bounds.h UPD include/generated/bounds.h CC arch/xtensa/kernel/asm-offsets.s CHK include/generated/asm-offsets.h UPD include/generated/asm-offsets.h CALL /home/kisskb/slave/src/scripts/checksyscalls.sh CC init/main.o CHK include/generated/compile.h CC init/do_mounts.o CC init/noinitramfs.o CC init/init_task.o LD usr/built-in.o UPD include/generated/compile.h CC init/version.o AS arch/xtensa/kernel/align.o AS arch/xtensa/kernel/coprocessor.o CC arch/xtensa/kernel/irq.o CC arch/xtensa/kernel/pci-dma.o AS arch/xtensa/kernel/entry.o CC arch/xtensa/kernel/platform.o CC arch/xtensa/kernel/process.o CC arch/xtensa/kernel/ptrace.o CC arch/xtensa/kernel/setup.o CC arch/xtensa/kernel/signal.o CC arch/xtensa/kernel/stacktrace.o CC arch/xtensa/kernel/syscall.o CC arch/xtensa/kernel/time.o AS arch/xtensa/kernel/vectors.o AS arch/xtensa/kernel/head.o CC arch/xtensa/kernel/traps.o LDS arch/xtensa/kernel/vmlinux.lds CC arch/xtensa/mm/init.o AS arch/xtensa/mm/misc.o CC arch/xtensa/mm/cache.o CC arch/xtensa/mm/fault.o CC arch/xtensa/mm/mmu.o CC arch/xtensa/mm/tlb.o CC arch/xtensa/platforms/iss/setup.o CC kernel/fork.o CC kernel/exec_domain.o CC kernel/panic.o CC kernel/cpu.o CC kernel/exit.o CC kernel/softirq.o CC kernel/resource.o CC kernel/sysctl_binary.o CC kernel/sysctl.o CC kernel/capability.o CC kernel/ptrace.o CC kernel/user.o CC kernel/signal.o CC kernel/sys.o CC kernel/kmod.o CC kernel/workqueue.o CC kernel/pid.o CC kernel/task_work.o CC kernel/extable.o CC kernel/params.o LD arch/xtensa/platforms/iss/built-in.o CC kernel/notifier.o CC kernel/sys_ni.o CC kernel/nsproxy.o CC kernel/kthread.o CC kernel/ksysfs.o CC kernel/cred.o CC kernel/reboot.o CC mm/filemap.o CC kernel/async.o CC mm/mempool.o CC kernel/range.o CC mm/oom_kill.o CC mm/maccess.o CC kernel/smpboot.o CC mm/page_alloc.o CC mm/readahead.o LD kernel/livepatch/built-in.o CC mm/page-writeback.o CC kernel/up.o CC mm/swap.o CC mm/truncate.o CC kernel/printk/printk.o CC mm/vmscan.o CC kernel/power/qos.o CC mm/shmem.o CC kernel/locking/mutex.o CC mm/util.o LD ipc/built-in.o CC kernel/rcu/update.o CC kernel/locking/semaphore.o CC mm/mmzone.o CC kernel/rcu/srcu.o CC kernel/locking/rwsem.o CC mm/vmstat.o CC kernel/rcu/tiny.o CC kernel/irq/irqdesc.o CC mm/backing-dev.o CC mm/mm_init.o CC kernel/locking/rwsem-xadd.o CC kernel/irq/handle.o CC kernel/irq/manage.o CC mm/mmu_context.o CC kernel/irq/spurious.o CC mm/percpu.o CC mm/slab_common.o CC kernel/irq/resend.o CC kernel/sched/core.o CC mm/compaction.o CC kernel/irq/chip.o CC kernel/sched/loadavg.o CC mm/vmacache.o CC mm/interval_tree.o CC kernel/time/time.o CC kernel/sched/clock.o CC kernel/time/timer.o LD arch/xtensa/mm/built-in.o CC kernel/irq/dummychip.o CC kernel/irq/devres.o CC mm/list_lru.o CC kernel/time/hrtimer.o CC kernel/sched/cputime.o CC kernel/irq/irqdomain.o CC mm/workingset.o CC mm/debug.o CC kernel/time/itimer.o CC kernel/sched/idle_task.o CC mm/gup.o CC kernel/time/posix-timers.o CC mm/highmem.o CC fs/read_write.o CC kernel/sched/fair.o CC kernel/time/posix-cpu-timers.o CC kernel/time/timekeeping.o CC mm/memory.o CC fs/file_table.o CC fs/open.o CC kernel/time/clocksource.o CC kernel/time/ntp.o CC mm/mincore.o CC kernel/sched/stop_task.o CC kernel/sched/rt.o CC kernel/time/jiffies.o CC kernel/sched/deadline.o CC kernel/time/timer_list.o CC fs/super.o CC fs/char_dev.o CC mm/mlock.o CC kernel/sched/wait.o CC kernel/sched/completion.o CC kernel/time/timeconv.o CC kernel/sched/idle.o CC fs/stat.o CC kernel/time/timecounter.o CC mm/mprotect.o CC kernel/time/posix-clock.o CC mm/mmap.o CC fs/exec.o CC fs/pipe.o CC kernel/time/alarmtimer.o CC fs/namei.o CC mm/mremap.o CC kernel/time/clockevents.o CC mm/msync.o CC fs/fcntl.o CC mm/rmap.o CC kernel/time/tick-common.o CC kernel/time/sched_clock.o CC fs/readdir.o CC mm/vmalloc.o CC fs/ioctl.o CC mm/pagewalk.o CC fs/dcache.o CC fs/select.o CC mm/pgtable-generic.o CC fs/inode.o LD arch/xtensa/kernel/built-in.o CC fs/attr.o CC mm/init-mm.o CC mm/bootmem.o CC fs/bad_inode.o CC security/commoncap.o CC mm/dmapool.o CC fs/file.o CC mm/slub.o CC security/min_addr.o CC fs/filesystems.o CC fs/namespace.o CC fs/seq_file.o CC fs/xattr.o CC fs/libfs.o CC fs/fs-writeback.o CC fs/pnode.o CC fs/splice.o CC fs/sync.o CC fs/utimes.o LD crypto/built-in.o CC fs/stack.o CC fs/fs_struct.o CC fs/statfs.o CC fs/fs_pin.o CC fs/nsfs.o CC fs/no-block.o LD init/mounts.o LD init/built-in.o LD fs/devpts/built-in.o LD fs/quota/built-in.o LD fs/exofs/built-in.o CC fs/ramfs/inode.o CC fs/ramfs/file-mmu.o LD block/built-in.o LD fs/notify/dnotify/built-in.o LD fs/notify/inotify/built-in.o LD fs/notify/fanotify/built-in.o LD fs/notify/built-in.o LD sound/built-in.o LD kernel/locking/built-in.o LD firmware/built-in.o LD kernel/rcu/built-in.o LD net/built-in.o LD kernel/power/built-in.o LD drivers/block/built-in.o LD drivers/amba/built-in.o LD drivers/auxdisplay/built-in.o LD drivers/bus/built-in.o LD drivers/cdrom/built-in.o LD drivers/gpio/built-in.o LD drivers/clocksource/built-in.o LD drivers/firewire/built-in.o LD drivers/leds/built-in.o LD drivers/idle/built-in.o LD drivers/lguest/built-in.o LD drivers/macintosh/built-in.o LD drivers/mmc/built-in.o LD drivers/net/built-in.o LD drivers/mfd/built-in.o LD drivers/nfc/built-in.o LD drivers/pwm/built-in.o LD drivers/platform/built-in.o CC drivers/irqchip/irq-xtensa-pic.o LD drivers/soc/built-in.o LD drivers/gpu/vga/built-in.o CC drivers/char/mem.o LD drivers/hsi/clients/built-in.o LD drivers/hsi/controllers/built-in.o CC drivers/char/random.o CC drivers/char/misc.o LD drivers/pinctrl/freescale/built-in.o LD drivers/pinctrl/nomadik/built-in.o LD drivers/video/backlight/built-in.o LD drivers/firmware/broadcom/built-in.o LD drivers/hsi/built-in.o LD drivers/i2c/muxes/built-in.o LD drivers/char/agp/built-in.o LD drivers/i2c/algos/built-in.o LD drivers/i2c/busses/built-in.o CC drivers/clk/clk-devres.o CC drivers/clk/clkdev.o LD drivers/tty/vt/built-in.o LD drivers/tty/serial/built-in.o LD drivers/pinctrl/built-in.o CC drivers/clk/clk.o LD drivers/firmware/built-in.o LD drivers/i2c/built-in.o CC drivers/clk/clk-divider.o LD drivers/tty/ipwireless/built-in.o LD drivers/misc/cb710/built-in.o CC drivers/clk/clk-fixed-factor.o LD drivers/misc/ti-st/built-in.o LD drivers/misc/lis3lv02d/built-in.o LD drivers/misc/eeprom/built-in.o CC drivers/clk/clk-fixed-rate.o CC drivers/clk/clk-gate.o LD drivers/gpu/drm/tilcdc/built-in.o LD drivers/tty/built-in.o CC drivers/clk/clk-mux.o CC drivers/video/fbdev/core/fb_notify.o LD drivers/gpu/drm/bridge/built-in.o LD drivers/gpu/drm/i2c/built-in.o LD drivers/gpu/drm/panel/built-in.o CC drivers/base/component.o CC drivers/clk/clk-composite.o CC drivers/base/core.o LD drivers/misc/mic/bus/built-in.o CC drivers/base/bus.o CC drivers/clk/clk-fractional-divider.o LD drivers/gpu/drm/built-in.o CC drivers/base/dd.o LD drivers/video/fbdev/omap2/displays-new/built-in.o CC drivers/clk/clk-gpio-gate.o CC drivers/base/syscore.o LD drivers/video/fbdev/omap2/dss/built-in.o LD drivers/media/firewire/built-in.o LD drivers/misc/mic/built-in.o LD drivers/media/tuners/built-in.o CC drivers/base/driver.o LD kernel/printk/built-in.o CC drivers/base/class.o CC drivers/base/platform.o LD drivers/video/fbdev/omap2/built-in.o LD drivers/misc/built-in.o CC drivers/base/cpu.o LD drivers/media/mmc/siano/built-in.o LD drivers/gpu/built-in.o LD drivers/media/rc/keymaps/built-in.o LD drivers/media/platform/omap/built-in.o LD drivers/media/i2c/soc_camera/built-in.o CC drivers/base/firmware.o LD drivers/media/common/siano/built-in.o LD drivers/media/common/b2c2/built-in.o CC drivers/base/init.o LD drivers/media/common/saa7146/built-in.o LD drivers/media/mmc/built-in.o CC drivers/base/map.o LD drivers/media/platform/built-in.o LD drivers/media/i2c/built-in.o LD drivers/media/rc/built-in.o CC drivers/base/devres.o LD arch/xtensa/lib/built-in.o CC drivers/base/attribute_container.o LD drivers/media/common/built-in.o AS arch/xtensa/lib/checksum.o AS arch/xtensa/lib/memcopy.o CC drivers/base/transport_class.o AS arch/xtensa/lib/memset.o AS arch/xtensa/lib/strncpy_user.o AS arch/xtensa/lib/strnlen_user.o CC drivers/base/topology.o AS arch/xtensa/lib/usercopy.o CC drivers/base/container.o CC drivers/base/property.o CC drivers/base/cacheinfo.o CC drivers/base/dma-mapping.o CC drivers/base/power/clock_ops.o CC lib/lockref.o LD drivers/media/usb/dvb-usb-v2/built-in.o LD drivers/media/pci/ddbridge/built-in.o LD drivers/media/usb/dvb-usb/built-in.o LD drivers/media/usb/s2255/built-in.o LD drivers/media/pci/mantis/built-in.o LD drivers/media/pci/b2c2/built-in.o LD drivers/media/pci/dm1105/built-in.o LD drivers/media/usb/b2c2/built-in.o LD drivers/media/usb/zr364xx/built-in.o CC lib/bcd.o LD drivers/media/pci/ttpci/built-in.o LD drivers/media/pci/saa7146/built-in.o LD fs/ramfs/ramfs.o LD drivers/media/pci/pt1/built-in.o LD drivers/media/pci/pluto2/built-in.o LD drivers/media/usb/ttusb-budget/built-in.o LD drivers/media/pci/ngene/built-in.o CC lib/div64.o LD drivers/media/pci/smipcie/built-in.o LD drivers/media/usb/stkwebcam/built-in.o LD drivers/media/usb/ttusb-dec/built-in.o LD kernel/irq/built-in.o LD drivers/media/usb/siano/built-in.o LD drivers/media/pci/pt3/built-in.o CC lib/sort.o CC lib/parser.o LD fs/ramfs/built-in.o CC lib/halfmd4.o LD drivers/media/pci/built-in.o CC lib/debug_locks.o LD drivers/media/usb/built-in.o AR arch/xtensa/lib/lib.a CC lib/random32.o CC lib/bust_spinlocks.o CC lib/kasprintf.o CC lib/bitmap.o CC lib/scatterlist.o CC lib/gcd.o CC lib/lcm.o CC lib/list_sort.o LD drivers/media/built-in.o CC lib/uuid.o CC lib/flex_array.o CC lib/iov_iter.o CC lib/clz_ctz.o CC lib/bsearch.o CC lib/find_bit.o CC lib/llist.o CC lib/memweight.o CC lib/kfifo.o CC lib/percpu-refcount.o CC lib/percpu_ida.o CC lib/rhashtable.o CC lib/reciprocal_div.o LD drivers/irqchip/built-in.o CC lib/string_helpers.o CC lib/hexdump.o CC lib/kstrtox.o CC lib/pci_iomap.o CC lib/iomap_copy.o CC lib/devres.o CC lib/atomic64.o CC lib/hweight.o CC lib/cmdline.o CC lib/argv_split.o CC lib/ctype.o CC lib/dec_and_lock.o CC lib/decompress.o CC lib/dump_stack.o CC lib/earlycpio.o CC lib/extable.o CC lib/flex_proportions.o CC lib/idr.o CC lib/int_sqrt.o CC lib/ioremap.o CC lib/irq_regs.o CC lib/is_single_threaded.o LD security/built-in.o CC lib/klist.o CC lib/kobject.o CC lib/kobject_uevent.o CC lib/md5.o CC lib/plist.o CC lib/proportions.o CC lib/radix-tree.o LD drivers/video/fbdev/core/built-in.o CC lib/ratelimit.o CC lib/rbtree.o LD drivers/video/fbdev/built-in.o CC lib/seq_buf.o CC lib/sha1.o CC lib/show_mem.o LD drivers/video/built-in.o CC lib/string.o CC lib/timerqueue.o CC lib/vsprintf.o LD drivers/base/power/built-in.o LD drivers/char/built-in.o LD kernel/time/built-in.o LD drivers/base/built-in.o LD kernel/sched/built-in.o LD kernel/built-in.o LD drivers/clk/built-in.o LD drivers/built-in.o LD mm/built-in.o LD lib/built-in.o LD fs/built-in.o AR lib/lib.a LINK vmlinux LD vmlinux.o MODPOST vmlinux.o GEN .version CHK include/generated/compile.h UPD include/generated/compile.h CC init/version.o LD init/built-in.o LD vmlinux SORTEX vmlinux SYSMAP System.map OBJCOPY vmlinux.bin LD arch/xtensa/boot/lib/built-in.o COPY arch/xtensa/boot/lib/inffast.c COPY arch/xtensa/boot/lib/inflate.c COPY arch/xtensa/boot/lib/inftrees.c CC arch/xtensa/boot/lib/zmem.o CC arch/xtensa/boot/lib/inffast.o CC arch/xtensa/boot/lib/inflate.o CC arch/xtensa/boot/lib/inftrees.o AR arch/xtensa/boot/lib/lib.a AS arch/xtensa/boot/boot-elf/bootstrap.o LDS arch/xtensa/boot/boot-elf/boot.lds Kernel: arch/xtensa/boot/boot-elf/../Image.elf is ready make[1]: Leaving directory `/home/kisskb/slave/build/linus_xtensa-allnoconfig_xtensa' Completed OK # rm -rf /home/kisskb/slave/build/linus_xtensa-allnoconfig_xtensa # Build took: 0:00:29.742500

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