On Tue, Mar 11, 2014 at 1:07 PM, Davidlohr Bueso <davidl...@hp.com> wrote: > On Tue, 2014-03-11 at 15:39 -0400, Sasha Levin wrote:
>> I've ended up deleting the log file by mistake, but this bug does seem to be >> important >> so I'd rather not wait before the same issue is triggered again. >> >> The call chain is: >> >> mlock (mm/mlock.c:745) >> __mm_populate (mm/mlock.c:700) >> __mlock_vma_pages_range (mm/mlock.c:229) >> VM_BUG_ON(!rwsem_is_locked(&mm->mmap_sem)); > > So __mm_populate() is only called by mlock(2) and this VM_BUG_ON seems > wrong as we call it without the lock held: Not related to the bug, but please note that __mm_populate() is public and has other call sites outside of mlock.c - namely, it is called during mmap with MAP_POPULATE. -- Michel "Walken" Lespinasse A program is never fully debugged until the last user dies. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
