On 08/09, Kees Cook wrote: > > On Sat, Aug 9, 2014 at 6:47 PM, Guenter Roeck <priv...@roeck-us.net> wrote: > > Hi folks, > > > > I am having some trouble with commit dbd952127d (seccomp: introduce > > writer locking) when running my qemu tests on the upstream kernel. > > Eek, sorry this is causing you trouble! > > > With powerpc, I get the following crash. > > > > ftrace: allocating 20093 entries in 59 pages > > ------------[ cut here ]------------ > > kernel BUG at kernel/fork.c:1108! > > For your tree, does this resolve to copy_seccomp()'s > > BUG_ON(!spin_is_locked(¤t->sighand->siglock)); > > line?
This is almost off-topic, and I too do not understand whats going on... But I'd suggest to change this check to use lockdep_is_held() in any case. Oleg. -- 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/
