• Steven Rostedt's avatar
    slob/lockdep: Fix gfp flags passed to lockdep · bd50cfa8
    Steven Rostedt authored
    Doing a ktest.pl randconfig, I stumbled across the following bug
    on boot up:
    
    ------------[ cut here ]------------
    WARNING: at /home/rostedt/work/autotest/nobackup/linux-test.git/kernel/lockdep.c:2649 lockdep_trace_alloc+0xed/0x100()
    Hardware name:
    Modules linked in:
    Pid: 0, comm: swapper Not tainted 3.0.0-rc1-test-00054-g1d68b67 #1
    Call Trace:
     [<ffffffff810626ad>] warn_slowpath_common+0xad/0xf0
     [<ffffffff8106270a>] warn_slowpath_null+0x1a/0x20
     [<ffffffff810b537d>] lockdep_trace_alloc+0xed/0x100
     [<ffffffff81182fb0>] __kmalloc_node+0x30/0x2f0
     [<ffffffff81153eda>] pcpu_mem_alloc+0x13a/0x180
     [<ffffffff82be022c>] percpu_init_late+0x48/0xc2
     [<ffffffff82bd630c>] ? mem_init+0xd8/0xe3
     [<ffffffff82bbcc73>] start_kernel+0x1c2/0x449
     [<ffffffff82bbc35c>] x86_64_start_reservations+0x163/0x167
     [<ffffffff82bbc493>] x86_64_start_kernel+0x133/0x142^M
    ---[ end trace a7919e7f17c0a725 ]---
    
    Then I ran a ktest.pl config_bisect and it came up with this config
    as the probl...
    bd50cfa8
slob.c 17.1 KB