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authorVasily Gorbik <gor@linux.ibm.com>2019-11-22 17:15:35 +0100
committerVasily Gorbik <gor@linux.ibm.com>2019-11-30 10:52:45 +0100
commitcb7948e8c3f18f7ff0ab7d0fa1e6b108d938cdd6 (patch)
tree6dd9d66cdac966a20580ccc33345b5f993dcee3e /arch
parent97806dfb6f3838ee4b7bc69e6f160d83eadbc74a (diff)
s390/head64: correct init_task stack setup
Add missing allocation of pt_regs at the bottom of the stack. This makes it consistent with other stack setup cases and also what stack unwinder expects. Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/s390/kernel/head64.S2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/kernel/head64.S b/arch/s390/kernel/head64.S
index b9e585f528a6..8b88dbbda7df 100644
--- a/arch/s390/kernel/head64.S
+++ b/arch/s390/kernel/head64.S
@@ -31,7 +31,7 @@ ENTRY(startup_continue)
#
larl %r14,init_task
stg %r14,__LC_CURRENT
- larl %r15,init_thread_union+THREAD_SIZE-STACK_FRAME_OVERHEAD
+ larl %r15,init_thread_union+THREAD_SIZE-STACK_FRAME_OVERHEAD-__PT_SIZE
#ifdef CONFIG_KASAN
brasl %r14,kasan_early_init
#endif