s390/mm: print control registers and page table walk on crash
authorHeiko Carstens <heiko.carstens@de.ibm.com>
Mon, 7 Apr 2014 08:20:40 +0000 (10:20 +0200)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Wed, 9 Apr 2014 08:19:13 +0000 (10:19 +0200)
commit3b7df3421f8813ce3b0eedf3d1d9c247c38e3c39
tree6d5e15731f4d74f9066f77be2d296bfcfa3e09b1
parente7c46c66dbd1727f7de52f54c4acefb692b24f37
s390/mm: print control registers and page table walk on crash

Print extra debugging information to the console if the kernel or a user
space process crashed (with user space debugging enabled):

- contents of control register 7 and 13
- failing address and translation exception identification
- page table walk for the failing address

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
arch/s390/mm/fault.c