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3931723f36
linux/arch/s390/kernel
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Michael Holzheu 3931723f36 [S390] kernel: Fix smp_switch_to_ipl_cpu() stack frame setup 
Currently, when smp_switch_to_ipl_cpu() is done, the backchain in the dump
analysis tool crash looks like the following:

 #0 [1f746e70] __machine_kexec at 11dd92
 #1 [1f746eb8] smp_restart_cpu at 11820e
 #0 [00907eb0] cpu_idle at 10602e
 #1 [00907ef8] start_kernel at 979a08

It would be good to see the registers of the interrupted function.
To achieve this, the backchain on the new stack has to be set to zero.
This looks then like the following:

 #0 [1f746e70] __machine_kexec at 11dd8e
 #1 [1f746eb8] smp_restart_cpu at 11820a
 PSW:  0706000180000000 00000000005c6fe6 (vtime_stop_cpu+134)
 GPRS: 0000000000000000 00000000005c6fe6 0000000001ad0228 0000000001ad0248
       0000000000907f08 0000000001ad0b40 0000000000979344 0000000000000000
       00000000009c0000 00000000009c0010 00000000009ab024 0000000001ad0200
       0000000001ad0238 00000000005cc9d8 000000000010602e 0000000000907e68
 #0 [00907eb0] cpu_idle at 10602e
 #1 [00907ef8] start_kernel at 979a08

In addition to this, now also the correct PSW is stored in the pt_regs
structure that is located at the start of the panic stack.

Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-12-27 11:27:10 +01:00
..
vdso32 [S390] vdso: disable gcov profiling 2011-05-23 10:24:29 +02:00
vdso64 [S390] vdso: disable gcov profiling 2011-05-23 10:24:29 +02:00
asm-offsets.c [S390] signal race with restarting system calls 2011-10-30 15:16:43 +01:00
audit.c [S390] Get rid of a bunch of sparse warnings again. 2007-10-12 16:13:06 +02:00
audit.h [S390] Get rid of a bunch of sparse warnings again. 2007-10-12 16:13:06 +02:00
base.S [S390] kdump backend code 2011-10-30 15:16:42 +01:00
bitmap.c [S390] move EXPORT_SYMBOLs to definitions 2009-03-26 15:24:11 +01:00
compat_audit.c [S390] Get rid of a bunch of sparse warnings again. 2007-10-12 16:13:06 +02:00
compat_exec_domain.c [S390] Get rid of a lot of sparse warnings. 2007-02-05 21:16:47 +01:00
compat_linux.c [S390] sparse: fix access past end of array warnings 2011-10-30 15:16:46 +01:00
compat_linux.h Mark arguments to certain syscalls as being const 2010-08-13 16:53:13 -07:00
compat_ptrace.h [S390] ptrace cleanup 2011-01-05 12:47:31 +01:00
compat_signal.c [S390] sparse: fix sparse warnings with __user pointers 2011-10-30 15:16:46 +01:00
compat_wrapper.S [S390] wire up process_vm syscalls 2011-11-14 11:19:08 +01:00
cpcmd.c [S390] convert cpcmd printks to pr_xxx macros. 2008-12-25 13:39:19 +01:00
crash_dump.c [S390] Remove error checking from copy_oldmem_page() 2011-10-30 15:16:47 +01:00
crash.c [S390] Get rid of a lot of sparse warnings. 2007-02-05 21:16:47 +01:00
debug.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
diag.c [S390] replace diag10() with diag10_range() function 2011-05-10 17:13:43 +02:00
dis.c atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
early.c [S390] Check for NULL termination in command line setup 2011-12-27 11:25:48 +01:00
ebcdic.c [S390] Get rid of a lot of sparse warnings. 2007-02-05 21:16:47 +01:00
entry.h [S390] sparse: fix sparse warnings about missing prototypes 2011-10-30 15:16:46 +01:00
entry.S [S390] add TIF_SYSCALL thread flag 2011-10-30 15:16:43 +01:00
entry64.S [S390] load user asce on sie_fault 2011-10-30 15:16:44 +01:00
ftrace.c [S390] cleanup ftrace backend functions 2011-01-05 12:47:31 +01:00
head_kdump.S [S390] kdump backend code 2011-10-30 15:16:42 +01:00
head.S [S390] kdump backend code 2011-10-30 15:16:42 +01:00
head31.S [S390] smp: external call vs. emergency signal 2011-10-30 15:16:44 +01:00
head64.S [S390] smp: external call vs. emergency signal 2011-10-30 15:16:44 +01:00
init_task.c Use new __init_task_data macro in arch init_task.c files. 2009-09-21 06:27:08 +02:00
ipl.c [S390] sparse: fix sparse warnings about missing prototypes 2011-10-30 15:16:46 +01:00
irq.c [S390] irqstats: split IPI interrupt accounting 2011-10-30 15:16:47 +01:00
jump_label.c s390/jump-label: add arch_jump_label_transform_static() 2011-10-25 11:54:37 -07:00
kprobes.c [S390] sparse: fix sparse static warnings 2011-10-30 15:16:46 +01:00
machine_kexec.c [S390] cleanup psw related bits and pieces 2011-10-30 15:16:43 +01:00
Makefile [S390] kdump backend code 2011-10-30 15:16:42 +01:00
mcount.S [S390] fix s390 assembler code alignments 2011-07-24 10:48:21 +02:00
mcount64.S [S390] fix s390 assembler code alignments 2011-07-24 10:48:21 +02:00
mem_detect.c [S390] Rework create_mem_hole() function 2011-12-27 11:27:09 +01:00
module.c modules: make arch's use default loader hooks 2011-07-24 22:06:04 +09:30
nmi.c [S390] irq: have detailed statistics for interrupt types 2011-01-05 12:47:25 +01:00
process.c [S390] sparse: fix sparse warnings about missing prototypes 2011-10-30 15:16:46 +01:00
processor.c [S390] avoid warning in show_cpuinfo 2011-10-30 15:16:15 +01:00
ptrace.c [S390] remove reset of system call restart on psw changes 2011-12-01 13:32:17 +01:00
reipl.S [S390] kdump backend code 2011-10-30 15:16:42 +01:00
reipl64.S [S390] lowcore cleanup 2011-10-30 15:16:42 +01:00
relocate_kernel.S [S390] fix s390 assembler code alignments 2011-07-24 10:48:21 +02:00
relocate_kernel64.S [S390] fix s390 assembler code alignments 2011-07-24 10:48:21 +02:00
s390_ksyms.c [S390] move sie code to entry.S 2011-07-24 10:48:21 +02:00
sclp.S [S390] fix s390 assembler code alignments 2011-07-24 10:48:21 +02:00
setup.c [S390] add support for physical memory > 4TB 2011-12-27 11:27:10 +01:00
signal.c [S390] ptrace inferior call interactions with TIF_SYSCALL 2011-12-01 13:32:17 +01:00
smp.c [S390] kernel: Fix smp_switch_to_ipl_cpu() stack frame setup 2011-12-27 11:27:10 +01:00
stacktrace.c [S390] Fix stacktrace compile bug. 2008-07-17 17:22:09 +02:00
suspend.c [S390] sparse: fix sparse warnings about missing prototypes 2011-10-30 15:16:46 +01:00
switch_cpu.S [S390] fix s390 assembler code alignments 2011-07-24 10:48:21 +02:00
switch_cpu64.S [S390] fix s390 assembler code alignments 2011-07-24 10:48:21 +02:00
swsusp_asm64.S PM / Hibernate: Include storage keys in hibernation image on s390 2011-10-16 23:27:46 +02:00
sys_s390.c [S390] sys_personality: follow u_long to unsigned int conversion 2010-08-13 10:06:54 +02:00
syscalls.S [S390] wire up process_vm syscalls 2011-11-14 11:19:08 +01:00
sysinfo.c [S390] sparse: fix sparse warnings in math-emu 2011-10-30 15:16:46 +01:00
time.c [S390] sparse: fix sparse warnings about missing prototypes 2011-10-30 15:16:46 +01:00
topology.c [S390] topology: fix topology on z10 machines 2011-11-14 11:19:09 +01:00
traps.c [S390] sparse: fix sparse warnings with __user pointers 2011-10-30 15:16:46 +01:00
vdso.c mm: arch: rename in_gate_area_no_task to in_gate_area_no_mm 2011-03-23 16:36:55 -04:00
vmlinux.lds.S [S390] incorrect note program header 2011-11-14 11:19:08 +01:00
vtime.c [S390] sparse: fix sparse static warnings 2011-10-30 15:16:46 +01:00