On Thu, Sep 25, 2008 at 7:02 PM, Koen Kooi <k.kooi@xxxxxxxxxxxxxxxxxx> wrote: > > Op 25 sep 2008, om 15:27 heeft Philip Balister het volgende geschreven: > >> Jarkko Nikula wrote: >>> >>> 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. >> >> I've also verified this works on a Beagle with Angstrom. >> >> Thanks for tracking this down! > > > For people wanting to test it: > > http://www.angstrom-distribution.org/demo/beagleboard/uImage > > regards, > > Koen > Jarkko that was a great. The problem disappeared now on osk also. Thanks, Arun -- 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
