On Thu, May 2, 2013 at 10:41 AM, Daniel Vetter <[email protected]> wrote: > On Thu, May 2, 2013 at 2:02 AM, Borislav Petkov <[email protected]> wrote: >> Hi, >> >> I'm seeing this when booting latest Linus tree + tip/master in kvm. >> Config is attached. Looks like it cannot find root fs and panics and >> calls the panic notifier which screams in drm_crtc.c because not all >> modeset locks are taken. Maybe bogus? > > Locking in the drm panic notifiere is completely bogus (as in simply > does not exist). The only difference is that with the new locking > scheme in 3.9 we're now pretty obnixious about checking for these > kinds of things. Also, drm drivers love to sleep in the panic > handlers, too. It's somewhere on my giant list of things to fix in drm > land, but I'm not sure whether I'll get around to it in this life or > the next. Maybe we just need to shut up the WARN in case of a panic > ...
Maybe? of course you do. its a panic, getting anything on the screen is vastly more important than the locking being perfect, any chance of any info landing on the screen is being decreased by this spew. Dave. -- 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/
