FYI, we noticed the following commit: commit: 3fef5b604acd6e2346d932088b526891fbf93ee9 ("mm/vmalloc: add a node corresponding to cached_hole_size") url: https://github.com/0day-ci/linux/commits/Zhaoyang-Huang/mm-vmalloc-add-a-node-corresponding-to-cached_hole_size/20170724-021305 in testcase: boot on test machine: qemu-system-x86_64 -enable-kvm -smp 2 -m 512M caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): +----------------------------------------------------+-----------+------------+ | | v4.13-rc1 | 3fef5b604a | +----------------------------------------------------+-----------+------------+ | boot_successes | 686 | 0 | | boot_failures | 2369 | 32 | | BUG:kernel_in_stage | 10 | | | WARNING:possible_recursive_locking_detected | 2282 | | | BUG:kernel_hang_in_test_stage | 294 | | | INFO:creating/lkp/benchmarks/ltp/output_directory | 344 | | | INFO:creating/lkp/benchmarks/ltp/results_directory | 344 | | | INFO:ltp-pan_reported_some_tests_FAIL | 218 | | | INFO:ltp-pan_reported_all_tests_PASS | 124 | | | invoked_oom-killer:gfp_mask=0x | 4 | | | Mem-Info | 4 | | | BUG:unable_to_handle_kernel | 3 | | | Oops:#[##] | 3 | | | Kernel_panic-not_syncing:Fatal_exception | 5 | 32 | | general_protection_fault:#[##] | 2 | | | BUG:kernel_hang_in_boot_stage | 11 | | | BUG:kernel_reboot-without-warning_in_test_stage | 1 | | | kernel_BUG_at_mm/vmalloc.c | 0 | 32 | | invalid_opcode:#[##] | 0 | 32 | +----------------------------------------------------+-----------+------------+ [ 3.052952] kernel BUG at mm/vmalloc.c:526! [ 3.052956] invalid opcode: 0000 [#1] SMP [ 3.052957] Modules linked in: [ 3.052961] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.13.0-rc1-00001-g3fef5b6 #5 [ 3.052963] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-20161025_171302-gandalf 04/01/2014 [ 3.052965] task: ffff8c443bcb8040 task.stack: ffffb9f3c0194000 [ 3.052969] RIP: 0010:alloc_vmap_area+0x2b8/0x36f [ 3.052971] RSP: 0000:ffffb9f3c0197be8 EFLAGS: 00010206 [ 3.052974] RAX: ffffb9f3c01a9000 RBX: 0000000000002000 RCX: 0000000000000d81 [ 3.052975] RDX: 0000000000000003 RSI: 0000000000000003 RDI: ffffffff980c52a0 [ 3.052977] RBP: ffffb9f3c0197c40 R08: 0000000173ae419e R09: ffffffff97a436f8 [ 3.052979] R10: ffffb9f3c0197b50 R11: 0000000000000002 R12: 0000000000000fff [ 3.052980] R13: ffff8c443b99dc00 R14: ffffffffc02db000 R15: 0000000000000000 [ 3.052983] FS: 0000000000000000(0000) GS:ffff8c443ca00000(0000) knlGS:0000000000000000 [ 3.052984] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3.052986] CR2: 0000000000000000 CR3: 000000001c02c000 CR4: 00000000000006f0 [ 3.052990] Call Trace: [ 3.052999] __get_vm_area_node+0xee/0x158 [ 3.053011] ? ftrace_stub+0x5/0x5 [ 3.053014] ? ftrace_call+0x34/0x34 [ 3.053017] __vmalloc_node_range+0x67/0x226 [ 3.053021] ? arch_ftrace_update_trampoline+0xad/0x21c [ 3.053023] ? __mutex_unlock_slowpath+0x3a/0x201 [ 3.053027] ? arch_ftrace_update_trampoline+0xad/0x21c [ 3.053030] ? ftrace_stub+0x5/0x5 [ 3.053032] ? ftrace_call+0x34/0x34 [ 3.053035] module_alloc+0xa7/0xb7 [ 3.053039] ? arch_ftrace_update_trampoline+0xad/0x21c [ 3.053043] arch_ftrace_update_trampoline+0xad/0x21c [ 3.053045] ? ftrace_regs_caller+0x65/0x65 [ 3.053053] ftrace_startup+0xf4/0x19e [ 3.053057] register_ftrace_function+0x26/0x3c [ 3.053060] arm_kprobe+0x5d/0xc5 [ 3.053063] register_kprobe+0x3fa/0x49e [ 3.053069] init_test_probes+0x51/0x462 [ 3.053071] ? init_test_probes+0x51/0x462 [ 3.053074] ? register_module_notifier+0x18/0x1a [ 3.053078] init_kprobes+0x1f7/0x204 [ 3.053081] ? debugfs_kprobe_init+0xaa/0xaa [ 3.053084] ? set_debug_rodata+0x17/0x17 [ 3.053087] do_one_initcall+0x90/0x138 [ 3.053094] ? set_debug_rodata+0x17/0x17 [ 3.053096] kernel_init_freeable+0x1c6/0x24e [ 3.053099] ? rest_init+0xd8/0xd8 [ 3.053103] kernel_init+0xe/0xfa [ 3.053106] ret_from_fork+0x2a/0x40 [ 3.053114] Code: 67 eb ff ff 49 8d 45 18 48 c7 c7 a0 52 0c 98 48 89 05 ab e5 6a 04 e8 e2 07 de 01 49 8b 45 00 49 85 c4 74 02 0f 0b 49 39 c6 76 02 <0f> 0b 48 8b 5d b8 49 3b 5d 08 4c 89 e8 0f 83 95 00 00 00 0f 0b [ 3.053163] RIP: alloc_vmap_area+0x2b8/0x36f RSP: ffffb9f3c0197be8 [ 3.053170] ---[ end trace fdb091fa3551ba62 ]--- To reproduce: git clone https://github.com/01org/lkp-tests.git cd lkp-tests bin/lkp qemu -k job-script # job-script is attached in this email Thanks, Xiaolong