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Vasily Gorbik 0ab0d7ac20 s390/unwind: correct stack switching during unwind 
Adjust conditions in on_stack function. That fixes backchain unwinder
which was unable to read pt_regs at the very bottom of the stack and
hence couldn't follow stacks (e.g. from async stack to a task stack).

Fixes: 78c98f9074 ("s390/unwind: introduce stack unwind API")
Reported-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
 		2019-06-07 15:20:44 +02:00
..
appldata sched: loadavg: consolidate LOAD_INT, LOAD_FRAC, CALC_LOAD 2018-10-26 16:26:32 -07:00
boot s390/boot: fix compiler error due to missing awk strtonum 2019-05-07 14:37:14 +02:00
configs s390: move arch/s390/defconfig to arch/s390/configs/defconfig 2019-05-14 17:54:48 +02:00
crypto s390/crypto: fix possible sleep during spinlock aquired 2019-05-29 21:13:10 +02:00
hypfs s390/kernel: introduce .dma sections 2019-04-29 10:47:10 +02:00
include s390/unwind: correct stack switching during unwind 2019-06-07 15:20:44 +02:00
kernel Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-05-17 09:46:31 -07:00
kvm KVM: s390: Do not report unusabled IDs via KVM_CAP_MAX_VCPU_ID 2019-05-28 15:52:19 +02:00
lib s390: add missing ENDPROC statements to assembler functions 2019-05-02 13:54:11 +02:00
mm s390/mm: fix address space detection in exception handling 2019-06-05 16:04:16 +02:00
net s390: Convert IS_ENABLED uses to __is_defined 2019-04-11 13:36:53 +02:00
numa treewide: add checks for the return value of memblock_alloc*() 2019-03-12 10:04:02 -07:00
oprofile s390/unwind: introduce stack unwind API 2019-05-02 13:54:11 +02:00
pci s390/pci: fix assignment of bus resources 2019-05-28 14:49:32 +02:00
purgatory s390: boot, purgatory: pass $(CLANG_FLAGS) where needed 2019-05-03 17:17:58 +02:00
scripts s390: make chkbss work with clang 2019-04-11 13:36:52 +02:00
tools * ARM: support for SVE and Pointer Authentication in guests, PMU improvements 2019-05-17 10:33:30 -07:00
Kbuild s390/kexec_file: Add purgatory 2018-04-16 09:10:22 +02:00
Kconfig mm: memblock: make keeping memblock memory opt-in rather than opt-out 2019-05-14 09:47:50 -07:00
Kconfig.debug Kconfig: consolidate the "Kernel hacking" menu 2018-08-02 08:06:48 +09:00
Makefile s390: move arch/s390/defconfig to arch/s390/configs/defconfig 2019-05-14 17:54:48 +02:00