diff options
Diffstat (limited to 'kernel/panic.c')
| -rw-r--r-- | kernel/panic.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/kernel/panic.c b/kernel/panic.c index 2a2ff36ff44d..33cab3de1763 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 +358,22 @@ EXPORT_SYMBOL(warn_slowpath); | |||
| 355 | #endif | 358 | #endif |
| 356 | 359 | ||
| 357 | #ifdef CONFIG_CC_STACKPROTECTOR | 360 | #ifdef CONFIG_CC_STACKPROTECTOR |
| 361 | |||
| 362 | #ifndef GCC_HAS_SP | ||
| 363 | #warning You have selected the CONFIG_CC_STACKPROTECTOR option, but the gcc used does not support this. | ||
| 364 | #endif | ||
| 365 | |||
| 358 | /* | 366 | /* |
| 359 | * Called when gcc's -fstack-protector feature is used, and | 367 | * Called when gcc's -fstack-protector feature is used, and |
| 360 | * gcc detects corruption of the on-stack canary value | 368 | * gcc detects corruption of the on-stack canary value |
| 361 | */ | 369 | */ |
| 362 | void __stack_chk_fail(void) | 370 | void __stack_chk_fail(void) |
| 363 | { | 371 | { |
| 364 | panic("stack-protector: Kernel stack is corrupted"); | 372 | panic("stack-protector: Kernel stack is corrupted in: %p\n", |
| 373 | __builtin_return_address(0)); | ||
| 365 | } | 374 | } |
| 366 | EXPORT_SYMBOL(__stack_chk_fail); | 375 | EXPORT_SYMBOL(__stack_chk_fail); |
| 376 | |||
| 367 | #endif | 377 | #endif |
| 368 | 378 | ||
| 369 | core_param(panic, panic_timeout, int, 0644); | 379 | core_param(panic, panic_timeout, int, 0644); |
