[PATCH] powerpc/traps: fix the message printed when stack overflows

From: Christophe Leroy
Date: Tue Jan 29 2019 - 11:28:34 EST


Today's message is useless:

[ 42.253267] Kernel stack overflow in process (ptrval), r1=c65500b0

This patch fixes it:

[ 66.905235] Kernel stack overflow in process sh[356], r1=c65560b0

Fixes: ad67b74d2469 ("printk: hash addresses printed with %p")
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Christophe Leroy <christophe.leroy@xxxxxx>
---
arch/powerpc/kernel/traps.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 5e917a84f949..ca8f86ea0345 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -1535,8 +1535,8 @@ void alignment_exception(struct pt_regs *regs)

void StackOverflow(struct pt_regs *regs)
{
- printk(KERN_CRIT "Kernel stack overflow in process %p, r1=%lx\n",
- current, regs->gpr[1]);
+ printk(KERN_CRIT "Kernel stack overflow in process %s[%d], r1=%lx\n",
+ current->comm, current->pid, regs->gpr[1]);
debugger(regs);
show_regs(regs);
panic("kernel stack overflow");
--
2.13.3