On Tue, 23 Sep 2008 11:50:53 +0300 "ext Jarkko Nikula" <jarkko.nikula@xxxxxxxxx> wrote: > On Tue, 23 Sep 2008 11:56:00 +0530 > "ext Arun KS" <getarunks@xxxxxxxxx> wrote: > > > Hi all, > > > > I am writing an ASOC driver for tlvaic23 on osk5912 platform. > > When do an aplay, I m getting a NULL pointer dereference. I added > > some debug prints in the soc/core/pcm_native.c, also in codec and > > platform drivers. The null pointer is comming in IOCTL > > SNDRV_PCM_IOCTL_SYNC_PTR. Log is pasted below. > > > It's good that you can reproduce this on OSK as well. > > I think some configuration difference is revealing this bug out. For > instance I can trigger this on Beagle with overo_defconfig + manually > adding support for Beagle (CONFIG_MACH_OMAP3_BEAGLE=y) and ASoC > Beagle (CONFIG_SND_OMAP_SOC_OMAP3_BEAGLE=y). > > But I cannot reproduce this with Beagle defconfig + manually adding > support for Overo (CONFIG_MACH_OVERO=y) and ASoC Beagle > (CONFIG_SND_OMAP_SOC_OMAP3_BEAGLE=y). > I narrowed this into CONFIG_SLUB. When it's set, I can reproduce the bug both with N810 and Beagle but not when using CONFIG_SLAB. Can you try will the problem disappear on your OSK and Overo if you select slab allocator instead? You find selection under "General setup" menu. Jarkko -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
