Greetings, 0day kernel testing robot got the below dmesg and the first bad commit is git://internal_merge_and_test_tree devel-catchup-201902062221 commit 6862935e2ddeae361bc4e969f5029558f0f562ba Merge: 3c70397b2d63c bd736eb1dbb87 Author: 0day robot <lkp(a)intel.com&gt; AuthorDate: Wed Feb 6 22:31:22 2019 +0800 Commit: 0day robot <lkp(a)intel.com&gt; CommitDate: Wed Feb 6 22:31:22 2019 +0800 Merge 'linux-review/lantianyu1986-gmail-com/x86-Hyper-V-IOMMU-Add-Hyper-V-IOMMU-driver-to-support-x2apic-mode/20190204-132009' into devel-catchup-201902062221 3c70397b2d Merge 'cel/nfs-for-5.1' into devel-catchup-201902062221 bd736eb1db MAINTAINERS: Add Hyper-V IOMMU driver into Hyper-V CORE AND DRIVERS scope 6862935e2d Merge 'linux-review/lantianyu1986-gmail-com/x86-Hyper-V-IOMMU-Add-Hyper-V-IOMMU-driver-to-support-x2apic-mode/20190204-132009' into devel-catchup-201902062221 02765cd3a1 0day head guard for 'devel-catchup-201902062221' +-------------------------------------------------+------------+------------+------------+------------+ | | 3c70397b2d | bd736eb1db | 6862935e2d | 02765cd3a1 | +-------------------------------------------------+------------+------------+------------+------------+ | boot_successes | 46 | 42 | 0 | 1 | | boot_failures | 0 | 1 | 15 | 20 | | BUG:kernel_reboot-without-warning_in_test_stage | 0 | 1 | | | | BUG:kernel_hang_in_boot_stage | 0 | 0 | 10 | 8 | | BUG:kernel_reboot-without-warning_in_boot_stage | 0 | 0 | 5 | 12 | +-------------------------------------------------+------------+------------+------------+------------+ Physical KASLR using RDTSC... Virtual KASLR using RDTSC... Decompressing Linux... Parsing ELF... Performing relocations... done. Booting the kernel. BUG: kernel reboot-without-warning in boot stage Linux version 5.0.0-rc5-06550-g6862935 #1 Command line: root=/dev/ram0 hung_task_panic=1 debug apic=debug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=100 net.ifnames=0 printk.devkmsg=on panic=-1 softlockup_panic=1 nmi_watchdog=panic oops=panic load_ramdisk=2 prompt_ramdisk=0 drbd.minor_count=8 systemd.log_level=err ignore_loglevel console=tty0 earlyprintk=ttyS0,115200 console=ttyS0,115200 vga=normal rw link=/cephfs/kbuild/run-queue/quantal-vm-quantal/x86_64-randconfig-s1-02061912/linux-devel:devel-catchup-201902062221:6862935e2ddeae361bc4e969f5029558f0f562ba:bisect-linux-1/.vmlinuz-6862935e2ddeae361bc4e969f5029558f0f562ba-20190207103610-10:quantal-vm-quantal-233 branch=linux-devel/devel-catchup-201902062221 BOOT_IMAGE=/pkg/linux/x86_64-randconfig-s1-02061912/gcc-6/6862935e2ddeae361bc4e969f5029558f0f562ba/vmlinuz-5.0.0-rc5-06550-g6862935 drbd.minor_count=8 rcuperf.shutdown=0 # HH:MM RESULT GOOD BAD GOOD_BUT_DIRTY DIRTY_NOT_BAD git bisect start 02765cd3a175076e0863c26d1e726cbef7d1574e f17b5f06cb92ef2250513a1e154c47b78df07d40 -- git bisect good 7c5ba7b27b0ea2af5dd65cb7672d4451cc3a9bd5 # 06:52 G 14 0 0 0 Merge 'linux-review/Paul-Cercueil/Ingenic-JZ47xx-NEMC-patchset-V3/20190206-011736' into devel-catchup-201902062221 git bisect good 3f2a489b4d2f070650f4dda579a5beae66e5b834 # 07:27 G 15 0 0 0 Merge 'linux-review/Chris-Wilson/drm-i915-gvt-Fix-kerneldoc-typo-for-intel_vgpu_emulate_hotplug/20190206-145832' into devel-catchup-201902062221 git bisect good ab010486d0725f7a473185777f78d861171845e7 # 07:50 G 15 0 0 0 Merge 'ipsec/master' into devel-catchup-201902062221 git bisect good 5e21a2b91d2fb636c03638b4b8fa6f992690c7fb # 08:26 G 14 0 0 0 Merge 'linux-review/Alan-Stern/USB-gadget-Improve-kerneldoc-for-usb_ep_dequeue/20190206-165447' into devel-catchup-201902062221 git bisect good 97eebc2a58d4f2117e341f5935434a3967799fe0 # 09:24 G 14 0 0 2 Merge 'hwmon/hwmon-next' into devel-catchup-201902062221 git bisect good 3c70397b2d63c1534beb08b2bea25113fd9e1cba # 10:10 G 15 0 0 0 Merge 'cel/nfs-for-5.1' into devel-catchup-201902062221 git bisect bad 6862935e2ddeae361bc4e969f5029558f0f562ba # 10:37 B 0 5 19 0 Merge 'linux-review/lantianyu1986-gmail-com/x86-Hyper-V-IOMMU-Add-Hyper-V-IOMMU-driver-to-support-x2apic-mode/20190204-132009' into devel-catchup-201902062221 git bisect good ec4409e26413943a1eb3537e6e81eb20d2acef27 # 12:02 G 15 0 0 0 HYPERV/IOMMU: Add Hyper-V stub IOMMU driver git bisect good bd736eb1dbb87a7d1f0086079aac19359919e9e2 # 12:56 G 14 0 0 0 MAINTAINERS: Add Hyper-V IOMMU driver into Hyper-V CORE AND DRIVERS scope # first bad commit: [6862935e2ddeae361bc4e969f5029558f0f562ba] Merge 'linux-review/lantianyu1986-gmail-com/x86-Hyper-V-IOMMU-Add-Hyper-V-IOMMU-driver-to-support-x2apic-mode/20190204-132009' into devel-catchup-201902062221 git bisect good 3c70397b2d63c1534beb08b2bea25113fd9e1cba # 13:02 G 44 0 0 0 Merge 'cel/nfs-for-5.1' into devel-catchup-201902062221 git bisect good bd736eb1dbb87a7d1f0086079aac19359919e9e2 # 13:07 G 43 0 1 1 MAINTAINERS: Add Hyper-V IOMMU driver into Hyper-V CORE AND DRIVERS scope # extra tests on HEAD of linux-devel/devel-catchup-201902062221 git bisect bad 02765cd3a175076e0863c26d1e726cbef7d1574e # 13:07 B 0 12 43 8 0day head guard for 'devel-catchup-201902062221' # extra tests on tree/branch linux-devel/devel-catchup-201902062221 git bisect bad 02765cd3a175076e0863c26d1e726cbef7d1574e # 13:08 B 0 12 43 8 0day head guard for 'devel-catchup-201902062221' --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/lkp Intel Corporation