At Fri, 7 Aug 2009 10:43:07 +0100,James Courtier-Dutton wrote:> > 2009/8/7 Ozan Çağlayan <ozan@xxxxxxxxxxxxx>:> >> > Added the following lines:> >> > printk(KERN_INFO "0x%p\n", jack);> > printk(KERN_INFO "0x%p\n", jack->jack);> > printk(KERN_INFO "0x%p\n", jack->jack->private_data);> >> > dmesg:> >> > NVRM: loading NVIDIA UNIX x86 Kernel Module 180.51 Thu Apr 16 19:02:15> > PDT 2009> > ACPI: PCI Interrupt 0000:00:1b.0[A] -> GSI 22 (level, low) -> IRQ 22> > PCI: Setting latency timer of device 0000:00:1b.0 to 64> > 0xf777a614> > 0x00000000> > BUG: unable to handle kernel NULL pointer dereference at 00000074> > IP: [<f93f2d97>] :snd_hda_codec_conexant:conexant_add_jack+0x57/0x81> > *pde = 00000000·> > Oops: 0000 [#1] SMP> >> > Need more of the dmesg output.> I.e. to see which print statements succeeded.> Alternatively, attach the snd_hda.ko so one can see where in that file> offset 0x57 is.> But a more useful print would be:> if (!jack) printk(KERN_INFO "jack null\n");> else if (!(jack->jack)) printk(KERN_INFO "jack->jack null\n");> else if (!(jack->jack->private_data)) printk(KERN_INFO> "jack->jack->private_data null\n");
Well, it's fairly obvious that jack->jack is NULL as the secondoutput is NULL, and the third one hits Oops.
Ozan, could you check whether CONFIG_SND_JACK is set instac92xx_add_jack, e.g. like below?
Takashi
---diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.cindex a75d6a0..e131e0d 100644--- a/sound/pci/hda/patch_sigmatel.c+++ b/sound/pci/hda/patch_sigmatel.c@@ -4185,6 +4185,9 @@ static int stac92xx_add_jack(struct hda_codec *codec, hda_nid_t nid, int type) { #ifdef CONFIG_SND_HDA_INPUT_JACK+#ifndef CONFIG_SND_JACK+#error XXX+#endif struct sigmatel_spec *spec = codec->spec; struct sigmatel_jack *jack; int def_conf = snd_hda_codec_get_pincfg(codec, nid);_______________________________________________Alsa-devel mailing listAlsa-devel@xxxxxxxxxxxxxxxxxxxx://mailman.alsa-project.org/mailman/listinfo/alsa-devel
