• D
    [PATCH] fix up lockdep trace in fs/exec.c · 513627d7
    Dave Jones 提交于
    This fixes the locking error noticed by lockdep:
    
      =============================================
      [ INFO: possible recursive locking detected ]
      ---------------------------------------------
      init/1 is trying to acquire lock:
       (&sighand->siglock){....}, at: [<c047a78a>] flush_old_exec+0x3ae/0x859
    
      but task is already holding lock:
       (&sighand->siglock){....}, at: [<c047a77a>] flush_old_exec+0x39e/0x859
    
      other info that might help us debug this:
      2 locks held by init/1:
       #0:  (tasklist_lock){..--}, at: [<c047a76a>] flush_old_exec+0x38e/0x859
       #1:  (&sighand->siglock){....}, at: [<c047a77a>] flush_old_exec+0x39e/0x859
    
      stack backtrace:
       [<c04051e1>] show_trace_log_lvl+0x54/0xfd
       [<c040579d>] show_trace+0xd/0x10
       [<c04058b6>] dump_stack+0x19/0x1b
       [<c043b33a>] __lock_acquire+0x773/0x997
       [<c043bacf>] lock_acquire+0x4b/0x6c
       [<c060630b>] _spin_lock+0x19/0x28
       [<c047a78a>] flush_old_exec+0x3ae/0x859
       [<c0498053>] load_elf_binary+0x4aa/0x1628
       [<c0479cab>] search_binary_handler+0xa7/0x24e
       [<c047b577>] do_execve+0x15b/0x1f9
       [<c04022b4>] sys_execve+0x29/0x4d
       [<c0403faf>] syscall_call+0x7/0xb
    Signed-off-by: NArjan van de Ven <arjan@infradead.org>
    Signed-off-by: NDave Jones <davej@redhat.com>
    Signed-off-by: NAndrew Morton <akpm@osdl.org>
    Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
    513627d7
exec.c 34.7 KB