Greetings, 0day kernel testing robot got the below dmesg and the first bad commit is https://git.kernel.org/pub/scm/linux/kernel/git/luto/linux.git x86/fixes commit a7aafd3922587ffc7590310d543ed6a6e8a1e355 Author: Andy Lutomirski <luto(a)kernel.org&gt; AuthorDate: Tue Jun 18 16:48:21 2019 -0700 Commit: Andy Lutomirski <luto(a)kernel.org&gt; CommitDate: Tue Jun 18 16:48:21 2019 -0700 assertions for "x86/fsgsbase/64: Enable FSGSBASE instructions in helper functions" e31ce026b4 Documentation/x86/64: Add documentation for GS/FS addressing mode a7aafd3922 assertions for "x86/fsgsbase/64: Enable FSGSBASE instructions in helper functions" 9d10f285b8 x86/vsyscall: Add __ro_after_init to global variables +--------------------------------------------------------------+------------+------------+------------+ | | e31ce026b4 | a7aafd3922 | 9d10f285b8 | +--------------------------------------------------------------+------------+------------+------------+ | boot_successes | 40 | 11 | 4 | | boot_failures | 0 | 6 | 11 | | WARNING:at_arch/x86/kernel/process_64.c:#__rdgsbase_inactive | 0 | 6 | 11 | | RIP:__rdgsbase_inactive | 0 | 6 | 11 | +--------------------------------------------------------------+------------+------------+------------+ If you fix the issue, kindly add following tag Reported-by: kernel test robot <lkp(a)intel.com&gt; [ 0.472367] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 0.472369] Speculative Store Bypass: Vulnerable [ 0.474704] MDS: Vulnerable: Clear CPU buffers attempted, no microcode [ 0.476121] ------------[ cut here ]------------ [ 0.476921] IRQs not disabled as expected [ 0.477626] WARNING: CPU: 0 PID: 0 at arch/x86/kernel/process_64.c:173 __rdgsbase_inactive+0x80/0xcb [ 0.479327] CPU: 0 PID: 0 Comm: swapper Not tainted 5.2.0-rc4-00022-ga7aafd3 #1 [ 0.479977] RIP: 0010:__rdgsbase_inactive+0x80/0xcb [ 0.479977] Code: 01 00 00 00 31 d2 be 01 00 00 00 48 c7 c7 d8 5f c0 82 c6 05 5c 17 be 01 01 e8 e9 22 12 00 48 c7 c7 71 fb 54 82 e8 4c 0a 09 00 <0f> 0b b9 01 00 00 00 31 d2 be 01 00 00 00 48 c7 c7 a8 5f c0 82 eb [ 0.479977] RSP: 0000:ffffffff82803d28 EFLAGS: 00010282 [ 0.479977] RAX: 000000000000001d RBX: 000000001edc0001 RCX: 0000000000000000 [ 0.479977] RDX: 0000000080000002 RSI: 0000000000000006 RDI: ffffffff82829800 [ 0.479977] RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000001 [ 0.479977] R10: ffffffff82803cf0 R11: ffffffff82a22918 R12: ffffffff819f02b7 [ 0.479977] R13: ffffffff82829800 R14: 0000000000000000 R15: ffffc9000000ff58 [ 0.479977] FS: 0000000000000000(0000) GS:ffffffff8284c000(0000) knlGS:0000000000000000 [ 0.479977] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 0.479977] CR2: 00000000ffffffff CR3: 0000000002822001 CR4: 00000000001706b0 [ 0.479977] Call Trace: [ 0.479977] ? copy_thread_tls+0x24f/0x28b [ 0.479977] ? copy_process+0xc1f/0x169c [ 0.479977] ? rest_init+0x9e/0x9e [ 0.479977] ? _do_fork+0xc3/0x395 [ 0.479977] ? acpi_hw_read_multiple+0x20/0x4f [ 0.479977] ? kernel_thread+0x25/0x26 [ 0.479977] ? rest_init+0x1e/0x9e [ 0.479977] ? start_kernel+0x544/0x54e [ 0.479977] ? secondary_startup_64+0xa4/0xb0 [ 0.479977] irq event stamp: 4666 [ 0.479977] hardirqs last enabled at (4665): [<ffffffff810e5dd2>] console_unlock+0x18c/0x512 [ 0.479977] hardirqs last disabled at (4666): [<ffffffff810010fc>] trace_hardirqs_off_thunk+0x1a/0x1c [ 0.479977] softirqs last enabled at (4632): [<ffffffff8101f19b>] fpregs_unlock+0x0/0x18 [ 0.479977] softirqs last disabled at (4630): [<ffffffff8101f0b2>] fpregs_lock+0x0/0x17 [ 0.479977] random: get_random_bytes called from init_oops_id+0x22/0x31 with crng_init=0 [ 0.479977] ---[ end trace d3683f4f4310ad08 ]--- [ 0.480836] Performance Events: unsupported p6 CPU model 60 no PMU driver, software events only. # HH:MM RESULT GOOD BAD GOOD_BUT_DIRTY DIRTY_NOT_BAD git bisect start 6dce82b636c56e5496d8caea251bc390aaf40d29 4b972a01a7da614b4796475f933094751a295a2f -- git bisect bad 3e0df4e165ee4aaffcabbd94b3d2af82ba181543 # 17:43 B 0 13 27 0 Merge 'linux-review/Lorenzo-Bianconi/mt76-usb-fix-rx-A-MSDU-support/20190618-045739' into devel-hourly-2019062410 git bisect bad b68ffba57d787f8b5e2006b45a2123b84128a25c # 17:55 B 0 1 15 0 Merge 'linux-review/Ren-van-Dorst/net-mediatek-Add-MT7621-TRGMII-mode-support/20190621-113241' into devel-hourly-2019062410 git bisect bad 92e84991ac38d609a5c3018ad5a6248702b88b5d # 18:15 B 0 1 15 0 Merge 'linux-review/Guilherme-G-Piccoli/bnx2x-Prevent-ptp_task-to-be-rescheduled-indefinitely/20190622-151838' into devel-hourly-2019062410 git bisect good bb40237173b5004f8828e0b9279f23b4756f78e1 # 18:35 G 12 0 0 0 Merge 'lunn/dsa-ci' into devel-hourly-2019062410 git bisect good 00707244e7cae3a9b8044d416daca1c6ef2b065f # 18:52 G 12 0 0 0 Merge 'linux-review/yibin-gong-nxp-com/dmaengine-imx-sdma-remove-BD_INTR-for-channel0/20190623-060527' into devel-hourly-2019062410 git bisect bad 735953cd90a34515136138ff927382e1c709e1ca # 19:06 B 0 1 15 0 Merge 'joel-aspeed/for-next' into devel-hourly-2019062410 git bisect bad e51a31c429e007c53a5c1f9264f61ff5b33fedcd # 19:16 B 1 3 0 0 Merge 'luto/x86/fixes' into devel-hourly-2019062410 git bisect good bd69dc61e6c69b7fb6aeb8ae80923c75c077341d # 19:42 G 13 0 1 1 Merge 'tip/WIP.x86/ipi' into devel-hourly-2019062410 git bisect good 364cecca2ba692079b0668ae8491c0285d18d9f7 # 19:58 G 13 0 0 0 Merge 'chanwoo-extcon/extcon-testing' into devel-hourly-2019062410 git bisect good 0d77209d524d84534df73de88e458eba093526bc # 20:09 G 13 0 0 0 x86/entry/64: Handle FSGSBASE enabled paranoid entry/exit git bisect bad d6d8c330a77ce5816d2683e3fc58ee8ae8bfa676 # 20:24 B 2 3 0 0 Tiny fixup for "x86/entry/64: Handle FSGSBASE enabled paranoid entry/exit" git bisect good 25af1e08445bc5917b9f9289db01267e3ca17b3a # 20:57 G 13 0 0 0 x86/cpu: Enable FSGSBASE on 64bit by default and add a chicken bit git bisect good e31ce026b4b141e3245fde4b7698e310b20e056e # 21:20 G 12 0 1 1 Documentation/x86/64: Add documentation for GS/FS addressing mode git bisect bad a7aafd3922587ffc7590310d543ed6a6e8a1e355 # 21:33 B 1 2 0 0 assertions for "x86/fsgsbase/64: Enable FSGSBASE instructions in helper functions" # first bad commit: [a7aafd3922587ffc7590310d543ed6a6e8a1e355] assertions for "x86/fsgsbase/64: Enable FSGSBASE instructions in helper functions" git bisect good e31ce026b4b141e3245fde4b7698e310b20e056e # 22:02 G 38 0 0 1 Documentation/x86/64: Add documentation for GS/FS addressing mode # extra tests on HEAD of linux-devel/devel-hourly-2019062410 git bisect bad 6dce82b636c56e5496d8caea251bc390aaf40d29 # 22:02 B 6 7 0 0 0day head guard for 'devel-hourly-2019062410' # extra tests on tree/branch luto/x86/fixes git bisect bad 9d10f285b8fe7ca9bb93c6584a2869b674db351e # 22:37 B 0 2 16 0 x86/vsyscall: Add __ro_after_init to global variables # extra tests with first bad commit reverted git bisect good 97cf804b2449c0d641f07506170b7a926cf45bd5 # 23:02 G 14 0 0 0 Revert "assertions for "x86/fsgsbase/64: Enable FSGSBASE instructions in helper functions"" --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/lkp Intel Corporation