-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 05/14/2014 12:35 PM, Peter Zijlstra wrote: > On Wed, May 14, 2014 at 12:32:26PM -0400, Sasha Levin wrote: >> -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 >> >> On 05/14/2014 12:29 PM, Peter Zijlstra wrote: >>> On Mon, May 12, 2014 at 11:42:33AM -0400, Sasha Levin wrote: >>>> Hi all, >>>> >>>> While fuzzing with trinity inside a KVM tools guest running the latest >>>> -next kernel I've stumbled on the following spew. Maybe related to the >>>> very recent change in freeing on task exit? >>>> >>>> [ 2509.827261] general protection fault: 0000 [#1] PREEMPT SMP >>>> DEBUG_PAGEALLOC [ 2509.830379] Dumping ftrace buffer: [ 2509.830379] >>>> (ftrace buffer empty) [ 2509.830379] Modules linked in: [ 2509.830379] >>>> CPU: 47 PID: 43306 Comm: trinity-c126 Tainted: G W >>>> 3.15.0-rc5-next-20140512-sasha-00019-ga20bc00-dirty #456 >>> >>> Any particular trinity setup? And would you happen to have the seed of that >>> run? >> >> Nothing special about trinity options. 400 threads and blacklisting some of >> the destructive syscalls (umount, reboot, etc). >> >> I don't have the seed, but that problem did reproduce again tonight so I can >> test out debug code if you have something in mind. > > Nah, I drew a pretty big blank, which is why I wanted to see if I could > reproduce. If you could share your trinity cmdline I'd be much obliged. While > I did manage to clone (the repo moved since last time) and build it, I'm not > really that handy with it and want to avoid destroying my machine if possible > ;-) >
./trinity -xinit_module -xreboot -xshutdown -xunshare -xnfsservctl -xclock_nanosleep -xuselib -xumount -xmount -m --quiet --dangerous -C 400 -l off Note that I run it as root in a disposable VM. Running that as root on your machine will likely kill it. Thanks, Sasha -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBAgAGBQJTc5vxAAoJEN6mb/eXdyzckwUQAJDWAzRcDfjQUwJsXHeMG9hb QMBdTJqijHnbzOiPX/xHnxxALGVsUl8+ZekLxlCmPF6l5o9/AGngavrb2pBG9uQe qo8B9vB6rxmzfImwWFpaC8LTizGfrwwU60Br1ByQiGCMnKVWGsenhOJgItawH+cu nm2QsyKwGAU9OvwFXfEuD8jky9yvTMOZVftaZE2oLW85dyjzAu24+PD5ogMpCraJ 6sM4fgU8w3WdBqQEvxj4u3ET0DmUrASV4wLTJ+/K5Mty6IZPYChEpDrdMmBl7kOM jk8QnJvP9jnflbfYwKvEZ3n0j9WkiVitU+3rITy17RJ7lHglwSR/5IwU/nhYVZUA ymrWldsYRPx55r0XVvTGyfx/9SkpHyl/mOgtjbFTYq8c4oxGTpC0LQZIVmtVPP0l j8ZBIV0pZUYK4KPvoe8eozZuJ6q+YdETrekLoFpLnIweo8bCfEU2vhD8Vzxp1aDm E907cHq1pqe6eRC9Las/gAXC/efy9YhsmtQgdwVpwwDpyaIujznbCF9nTfYgOkgx VoWED91EXqls8OQONlsNkc+Xy1fMmBZpwWiQeaOI5vLXhiwl0vxUl0ZHcb9VvJ4q 0k8EET64XIoJp+vZVO8d97AYG7B6Ub0W7DAs7Sn2ib5h44pByOXpR4scMZVXR7Hv zcievjH07ftXEUXOn6Xr =sJLe -----END PGP SIGNATURE----- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
