FYI, we noticed the following commit: commit: 084c12dcf31e3257dcbe5f8ed7928c0c261c718a ("lib: add linker tables test driver") https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux-next.git 20161130-linker-tables-v5-try3 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 -m 320M caused below changes: +-----------------------------------------------------------------------+------------+------------+ | | 642bf30722 | 084c12dcf3 | +-----------------------------------------------------------------------+------------+------------+ | boot_successes | 0 | 0 | | boot_failures | 8 | 8 | | BUG:sleeping_function_called_from_invalid_context_at_mm/page_alloc.c | 8 | 8 | | WARNING:at_lib/test_linktables/test-linktables.c:#test_linktable_init | 0 | 8 | +-----------------------------------------------------------------------+------------+------------+ [ 78.046646] Key type encrypted registered [ 78.074661] test_linktables: expected: 0 test [ 78.075891] ------------[ cut here ]------------ [ 78.079483] WARNING: CPU: 0 PID: 1 at lib/test_linktables/test-linktables.c:746 test_linktable_init+0x143/0x1cd [ 78.082636] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.9.0-rc7-next-20161130-00014-g084c12d #10 [ 78.083907] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014 [ 78.085346] Call Trace: [ 78.085346] dump_stack+0x61/0x7e [ 78.085346] __warn+0xb3/0xce [ 78.085346] ? set_debug_rodata+0x12/0x12 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, Ying Huang