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-rw-r--r--kernel/panic.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/kernel/panic.c b/kernel/panic.c
index 2a2ff36ff44d..32fe4eff1b89 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -74,6 +74,9 @@ NORET_TYPE void panic(const char * fmt, ...)
74 vsnprintf(buf, sizeof(buf), fmt, args); 74 vsnprintf(buf, sizeof(buf), fmt, args);
75 va_end(args); 75 va_end(args);
76 printk(KERN_EMERG "Kernel panic - not syncing: %s\n",buf); 76 printk(KERN_EMERG "Kernel panic - not syncing: %s\n",buf);
77#ifdef CONFIG_DEBUG_BUGVERBOSE
78 dump_stack();
79#endif
77 bust_spinlocks(0); 80 bust_spinlocks(0);
78 81
79 /* 82 /*
@@ -355,15 +358,18 @@ EXPORT_SYMBOL(warn_slowpath);
355#endif 358#endif
356 359
357#ifdef CONFIG_CC_STACKPROTECTOR 360#ifdef CONFIG_CC_STACKPROTECTOR
361
358/* 362/*
359 * Called when gcc's -fstack-protector feature is used, and 363 * Called when gcc's -fstack-protector feature is used, and
360 * gcc detects corruption of the on-stack canary value 364 * gcc detects corruption of the on-stack canary value
361 */ 365 */
362void __stack_chk_fail(void) 366void __stack_chk_fail(void)
363{ 367{
364 panic("stack-protector: Kernel stack is corrupted"); 368 panic("stack-protector: Kernel stack is corrupted in: %p\n",
369 __builtin_return_address(0));
365} 370}
366EXPORT_SYMBOL(__stack_chk_fail); 371EXPORT_SYMBOL(__stack_chk_fail);
372
367#endif 373#endif
368 374
369core_param(panic, panic_timeout, int, 0644); 375core_param(panic, panic_timeout, int, 0644);