Re: [RFC] Kernel NULL pointer dereference for mmc

2011-07-12 Thread Jaehoon Chung
Hi Per. #iozone -az -i 0 -i 1 -i 2 -s 200m -U /mnt/mmc -f /mnt/mmc/test -e /mnt/mmc is mounted /dev/mmcblk0p6 for EXT4 filesystem. It's my command..i tested with both SDHCI and DW_MMC controller. DW_MMC controller didn't find that error message. But SDHCI controller always occurred that error. I

Re: [RFC] Kernel NULL pointer dereference for mmc

2011-07-12 Thread Per Forlin
On 12 July 2011 06:23, Jaehoon Chung wrote: > Hi > > When I tested MMC card with IOzone, i found this message.. > I tried to find what problem..but i didn't find yet.. > > So i want to get mailing's help..Have ever seen the below message? > (using SDHCI controller, eMMC 4.41 card, 8-bit buswidth)

Re: [RFC] Kernel NULL pointer dereference for mmc

2011-07-11 Thread Philip Rakity
Hi Jaehoon, We have seen this before. see if the code in memory makes sense. We saw it was overwritten. Philip PS -- Did not find root cause. On Jul 11, 2011, at 9:23 PM, Jaehoon Chung wrote: > Hi > > When I tested MMC card with IOzone, i found this message.. > I tried to find what proble

[RFC] Kernel NULL pointer dereference for mmc

2011-07-11 Thread Jaehoon Chung
Hi When I tested MMC card with IOzone, i found this message.. I tried to find what problem..but i didn't find yet.. So i want to get mailing's help..Have ever seen the below message? (using SDHCI controller, eMMC 4.41 card, 8-bit buswidth) I didn't applied about post_req/pre_req in sdhci.c. (usi