On Thu, Jan 3, 2019 at 9:55 AM Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx> wrote: > > Op 30-12-2018 om 07:21 schreef syzbot: > > Hello, > > > > syzbot found the following crash on: > > > > HEAD commit: 903b77c63167 Merge tag 'linux-kselftest-4.21-rc1' of git:/.. > > git tree: upstream > > console output: https://syzkaller.appspot.com/x/log.txt?x=12d0f553400000 > > kernel config: https://syzkaller.appspot.com/x/.config?x=53a2f2aa0b1f7606 > > dashboard link: https://syzkaller.appspot.com/bug?extid=6ea337c427f5083ebdf2 > > compiler: gcc (GCC) 8.0.1 20180413 (experimental) > > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=120d906f400000 > > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1024673b400000 > > > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > > Reported-by: syzbot+6ea337c427f5083ebdf2@xxxxxxxxxxxxxxxxxxxxxxxxx > > > > RBP: 00007ffe369ca7a0 R08: 0000000000000001 R09: 00000000004009ce > > R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005 > > R13: ffffffffffffffff R14: 0000000000000000 R15: 0000000000000000 > > > > ================================================ > > WARNING: lock held when returning to user space! > > 4.20.0+ #174 Not tainted > > ------------------------------------------------ > > syz-executor556/8153 is leaving the kernel with locks still held! > > 1 lock held by syz-executor556/8153: > > #0: 000000005100c85c (crtc_ww_class_acquire){+.+.}, at: set_property_atomic+0xb3/0x330 drivers/gpu/drm/drm_mode_object.c:462 > > > > > > --- > > This bug is generated by a bot. It may contain errors. > > See https://goo.gl/tpsmEJ for more information about syzbot. > > syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. > > > > syzbot will keep track of this bug report. See: > > https://goo.gl/tpsmEJ#bug-status-tracking for how to communicate with syzbot. > > syzbot can test patches for this bug, for details see: > > https://goo.gl/tpsmEJ#testing-patches > > Just guessing.. > > Does this help? Hi Maarten, Please either test or ask syzbot to test: https://github.com/google/syzkaller/blob/master/docs/syzbot.md#testing-patches > ----- > diff --git a/drivers/gpu/drm/drm_mode_object.c b/drivers/gpu/drm/drm_mode_object.c > index cd9bc0ce9be0..004191d01772 100644 > --- a/drivers/gpu/drm/drm_mode_object.c > +++ b/drivers/gpu/drm/drm_mode_object.c > @@ -459,11 +459,11 @@ static int set_property_atomic(struct drm_mode_object *obj, > struct drm_modeset_acquire_ctx ctx; > int ret; > > - drm_modeset_acquire_init(&ctx, 0); > - > state = drm_atomic_state_alloc(dev); > if (!state) > return -ENOMEM; > + > + drm_modeset_acquire_init(&ctx, 0); > state->acquire_ctx = &ctx; > retry: > if (prop == state->dev->mode_config.dpms_property) { > > -- > You received this message because you are subscribed to the Google Groups "syzkaller-bugs" group. > To unsubscribe from this group and stop receiving emails from it, send an email to syzkaller-bugs+unsubscribe@xxxxxxxxxxxxxxxx. > To view this discussion on the web visit https://groups.google.com/d/msgid/syzkaller-bugs/fea9b565-06e4-fbb5-7e92-efd133a7028c%40linux.intel.com. > For more options, visit https://groups.google.com/d/optout. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
