We've observed the missing pvpanic call at panic, and it turned out that this was blocked by the broken notifier of drm_fb_helper, where scheduling may be called during switching to the fb console. It's fairly difficult to fix the drm_fb problem and a quick fix isn't foreseen, a simpler solution for the missing pvpanic call would be just to call this earlier.
In order to assure that, this patch sets a higher priority to pvpanic notifier_block. Once when the issue of drm_fb is resolved, we can remove this priority again. Signed-off-by: Takashi Iwai <ti...@suse.de> --- drivers/platform/x86/pvpanic.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/platform/x86/pvpanic.c b/drivers/platform/x86/pvpanic.c index c9f6e511daa6..073a90a63dbc 100644 --- a/drivers/platform/x86/pvpanic.c +++ b/drivers/platform/x86/pvpanic.c @@ -70,6 +70,7 @@ pvpanic_panic_notify(struct notifier_block *nb, unsigned long code, static struct notifier_block pvpanic_panic_nb = { .notifier_call = pvpanic_panic_notify, + .priority = 1, /* let this called before broken drm_fb_helper */ }; -- 1.9.2 -- 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/