linux/arch/s390
Heiko Carstens 4f8048ee73 [S390] smp: fix prefix handling of offlined cpus
Offlined cpus still have valid prefix register contents. Dumpers
will store the register contents of a cpu to the location where its
prefix register points to.
For offlined cpus the area (lowcore) has been freed and the dumper
would write the uninteresting contents of the offline cpu to a memory
location which might be in use by some other component and destroy
valueable information.
To fix this set the prefix register of offline cpus to absolute
address zero again. This prevents the current dumpers to write to
random memory locations.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-10-29 15:05:12 +01:00
..
appldata sysctl: remove "struct file *" argument of ->proc_handler 2009-09-24 07:21:04 -07:00
boot kbuild: use INSTALLKERNEL to select customized installkernel script 2009-09-20 12:18:14 +02:00
crypto crypto: sha-s390 - Fix warnings in import function 2009-09-05 16:27:35 +10:00
hypfs [S390] hypfs: Use subcode 6 if subcode 7 is not available 2009-10-14 12:43:52 +02:00
include/asm [S390] 64-bit register support for 31-bit processes 2009-10-06 10:35:10 +02:00
kernel [S390] smp: fix prefix handling of offlined cpus 2009-10-29 15:05:12 +01:00
kvm KVM: s390: fix memsize >= 4G 2009-10-04 13:57:23 +02:00
lib [S390] Add EX_TABLE for addressing exception in usercopy functions. 2009-10-06 10:35:10 +02:00
math-emu [S390] remove -traditional 2008-04-30 13:38:44 +02:00
mm [S390] fix build breakage with CONFIG_AIO=n 2009-10-06 10:35:05 +02:00
oprofile Combine instrumentation menus in kernel/Kconfig.instrumentation 2007-10-19 11:53:54 -07:00
defconfig [S390] Update default configuration. 2009-09-22 22:58:46 +02:00
Kconfig perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
Kconfig.debug generic debug pagealloc: build fix 2009-04-02 19:04:48 -07:00
Makefile [S390] hibernation: merge files and move to kernel/ 2009-09-11 10:29:45 +02:00