[PATCH v2 0/3] edac: Add L3/SoC support to the APM X-Gene SoC EDAC driver

On Mon, Aug 10, 2015 at 2:15 PM, Loc Ho [off-list ref] wrote:

Hi Dann,

quoted

quoted

v2:
* Update binding documentation accordingly
* Change all single bit defines to BIT(x)
* Add support for L3 version 1 and 2 HW's
* Change to use debug file system for error injection
* In L3/SoC instance add function, allocate EDAC context after all
  initalization successed
* Support raw or detail info for SoC EDAC error reporting

v1:
* Add L3/SoC support to the APM X-Gene SoC EDAC driver

Loc,
  I tested 4.2-rc5 on a Mustang board with one DIMM, and it hangs (RCU
stall) in xgene_edac_mc_irq_ctl() on modprobe. Same board with 2 DIMMs
boots fine. (U-boot 1.15.12).

I just removed one of the two 16GB DIMM... with 4.2.0-rc1 and some
code clean up in EDAC driver, it boots just fine... I don't believe
the code clean up would affect it. Do you have the dump log?

[root at dhcp-10-76-213-247 ~]# uname -a
Linux dhcp-10-76-213-247 4.2.0-rc1+ #33 SMP PREEMPT Mon Aug 10
13:23:03 MDT 2015 aarch64 GNU/Linux

Sure:
  http://paste.ubuntu.com/12055821/
I've reproduced this on two machines. In both cases, we removed the
DIMM furthest from the CPU (in case that matters).

 -dann

-Loc