FYI, we noticed the following commit: commit: 29608e96c43a1a5659d3aeffe6c663206285b5a2 ("lib: add linker tables test driver") https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux-next.git 20161130-linker-tables-v5 in testcase: trinity with following parameters: runtime: 300s test-description: Trinity is a linux system call fuzz tester. test-url: http://codemonkey.org.uk/projects/trinity/ on test machine: qemu-system-x86_64 -enable-kvm -m 320M caused below changes: +-----------------------------------------------------------------------+------------+------------+ | | 2ffb5369d1 | 29608e96c4 | +-----------------------------------------------------------------------+------------+------------+ | boot_successes | 0 | 0 | | boot_failures | 8 | 10 | | BUG:sleeping_function_called_from_invalid_context_at_mm/page_alloc.c | 8 | 2 | | INFO:lockdep_is_turned_off | 8 | 2 | | kernel_BUG_at_mm/slub.c | 3 | | | invalid_opcode:#[##]SMP | 3 | | | Kernel_panic-not_syncing:Fatal_exception | 3 | 8 | | general_protection_fault:#[##]SMP | 0 | 8 | | WARNING:at_lib/test_linktables/test-linktables.c:#test_linktable_init | 0 | 2 | +-----------------------------------------------------------------------+------------+------------+ [ 5.797693] .................................... done. [ 5.801250] registered taskstats version 1 [ 5.820896] Btrfs loaded, crc32c=crc32c-generic [ 5.825784] general protection fault: 0000 [#1] SMP [ 5.826939] Modules linked in: [ 5.827934] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.9.0-rc7-next-20161130-00014-g29608e9 #36 [ 5.829996] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014 [ 5.832074] task: ffff880012108040 task.stack: ffffc900000d0000 [ 5.833330] RIP: 0010:kobject_get+0xd/0x68 [ 5.834364] RSP: 0018:ffffc900000d3d18 EFLAGS: 00010206 [ 5.835601] RAX: 6b6b6b6b6b6b6b6b RBX: 6b6b6b6b6b6b6b7b RCX: 0000000000000000 [ 5.836989] RDX: 0000000000000000 RSI: ffffffff823435c7 RDI: 6b6b6b6b6b6b6b7b [ 5.838387] RBP: ffffc900000d3d20 R08: 000000026be71979 R09: 0000000000000001 [ 5.839782] R10: ffffc900000d3ca8 R11: ffffffff811f4cc2 R12: 00000000ffffffea [ 5.841174] R13: ffff88000b40e678 R14: 6b6b6b6b6b6b6b6b R15: 0000000000a00038 [ 5.842576] FS: 0000000000000000(0000) GS:ffff880013a00000(0000) knlGS:0000000000000000 [ 5.844559] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 5.845791] CR2: 0000000000000000 CR3: 000000000241e000 CR4: 00000000000006f0 [ 5.847187] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 5.848639] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 5.850073] Call Trace: [ 5.850918] get_device+0x1a/0x20 [ 5.851861] device_add+0xc2/0x546 [ 5.852816] ? kfree_const+0x20/0x22 To reproduce: git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git cd lkp-tests bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email Thanks, Xiaolong