x86, dumpstack: let signr=0 signal no do_exit
Change oops_end such that signr=0 signals that do_exit
is not to be called.
Currently, each use of __die is soon followed by a call
to oops_end and 'regs' is set to NULL if oops_end is expected
not to call do_exit. Change all such pairs to set signr=0
instead. On x86_64 oops_end is used 'bare' in die_nmi; use
signr=0 instead of regs=NULL there, too.
Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/kernel/dumpstack_32.c b/arch/x86/kernel/dumpstack_32.c
index 5493d31..7c22f99 100644
--- a/arch/x86/kernel/dumpstack_32.c
+++ b/arch/x86/kernel/dumpstack_32.c
@@ -318,7 +318,7 @@
__raw_spin_unlock(&die_lock);
raw_local_irq_restore(flags);
- if (!regs)
+ if (!signr)
return;
if (in_interrupt())
@@ -371,17 +371,18 @@
void die(const char *str, struct pt_regs *regs, long err)
{
unsigned long flags = oops_begin();
+ int sig = SIGSEGV;
if (die_nest_count < 3) {
report_bug(regs->ip, regs);
if (__die(str, regs, err))
- regs = NULL;
+ sig = 0;
} else {
printk(KERN_EMERG "Recursive die() failure, output suppressed\n");
}
- oops_end(flags, regs, SIGSEGV);
+ oops_end(flags, regs, sig);
}
static DEFINE_SPINLOCK(nmi_print_lock);