Report that kernel is tainted if there was an OOPS
If the kernel OOPSed or BUGed then it probably should be considered as
tainted. Thus, all subsequent OOPSes and SysRq dumps will report the
tainted kernel. This saves a lot of time explaining oddities in the
calltraces.
Signed-off-by: Pavel Emelianov <xemul@openvz.org>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
[ Added parisc patch from Matthew Wilson -Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/arch/alpha/kernel/traps.c b/arch/alpha/kernel/traps.c
index d6e665d..ec0f05e 100644
--- a/arch/alpha/kernel/traps.c
+++ b/arch/alpha/kernel/traps.c
@@ -184,6 +184,7 @@
#endif
printk("%s(%d): %s %ld\n", current->comm, current->pid, str, err);
dik_show_regs(regs, r9_15);
+ add_taint(TAINT_DIE);
dik_show_trace((unsigned long *)(regs+1));
dik_show_code((unsigned int *)regs->pc);
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 237f499..f2114bc 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -249,6 +249,7 @@
bust_spinlocks(1);
__die(str, err, thread, regs);
bust_spinlocks(0);
+ add_taint(TAINT_DIE);
spin_unlock_irq(&die_lock);
if (in_interrupt())
diff --git a/arch/arm26/kernel/traps.c b/arch/arm26/kernel/traps.c
index d594fb5..2911e2e 100644
--- a/arch/arm26/kernel/traps.c
+++ b/arch/arm26/kernel/traps.c
@@ -185,6 +185,7 @@
printk("Internal error: %s: %x\n", str, err);
printk("CPU: %d\n", smp_processor_id());
show_regs(regs);
+ add_taint(TAINT_DIE);
printk("Process %s (pid: %d, stack limit = 0x%p)\n",
current->comm, current->pid, end_of_stack(tsk));
diff --git a/arch/avr32/kernel/traps.c b/arch/avr32/kernel/traps.c
index aaa7928..9a73ce7 100644
--- a/arch/avr32/kernel/traps.c
+++ b/arch/avr32/kernel/traps.c
@@ -56,6 +56,7 @@
show_regs_log_lvl(regs, KERN_EMERG);
show_stack_log_lvl(current, regs->sp, regs, KERN_EMERG);
bust_spinlocks(0);
+ add_taint(TAINT_DIE);
spin_unlock_irq(&die_lock);
if (in_interrupt())
diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c
index 28bd1c5..18c1c28 100644
--- a/arch/i386/kernel/traps.c
+++ b/arch/i386/kernel/traps.c
@@ -433,6 +433,7 @@
bust_spinlocks(0);
die.lock_owner = -1;
+ add_taint(TAINT_DIE);
spin_unlock_irqrestore(&die.lock, flags);
if (!regs)
diff --git a/arch/ia64/kernel/traps.c b/arch/ia64/kernel/traps.c
index 15ad85d..3aeaf15 100644
--- a/arch/ia64/kernel/traps.c
+++ b/arch/ia64/kernel/traps.c
@@ -69,6 +69,7 @@
bust_spinlocks(0);
die.lock_owner = -1;
+ add_taint(TAINT_DIE);
spin_unlock_irq(&die.lock);
if (panic_on_oops)
diff --git a/arch/m68k/kernel/traps.c b/arch/m68k/kernel/traps.c
index a27a4fa..4e2752a 100644
--- a/arch/m68k/kernel/traps.c
+++ b/arch/m68k/kernel/traps.c
@@ -1170,6 +1170,7 @@
console_verbose();
printk("%s: %08x\n",str,nr);
show_registers(fp);
+ add_taint(TAINT_DIE);
do_exit(SIGSEGV);
}
diff --git a/arch/m68knommu/kernel/traps.c b/arch/m68knommu/kernel/traps.c
index bed5f47..fde04e1 100644
--- a/arch/m68knommu/kernel/traps.c
+++ b/arch/m68knommu/kernel/traps.c
@@ -83,6 +83,7 @@
printk(KERN_EMERG "Process %s (pid: %d, stackpage=%08lx)\n",
current->comm, current->pid, PAGE_SIZE+(unsigned long)current);
show_stack(NULL, (unsigned long *)fp);
+ add_taint(TAINT_DIE);
do_exit(SIGSEGV);
}
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 37c562c..ce277cb 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -326,6 +326,7 @@
#endif /* CONFIG_MIPS_MT_SMTC */
printk("%s[#%d]:\n", str, ++die_counter);
show_registers(regs);
+ add_taint(TAINT_DIE);
spin_unlock_irq(&die_lock);
if (in_interrupt())
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index f9bca2d..bbf029a 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -264,6 +264,7 @@
show_regs(regs);
dump_stack();
+ add_taint(TAINT_DIE);
if (in_interrupt())
panic("Fatal exception in interrupt");
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 3b8427e..2bb1cb9 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -149,6 +149,7 @@
bust_spinlocks(0);
die.lock_owner = -1;
+ add_taint(TAINT_DIE);
spin_unlock_irqrestore(&die.lock, flags);
if (kexec_should_crash(current) ||
diff --git a/arch/ppc/kernel/traps.c b/arch/ppc/kernel/traps.c
index 0eaef7c..3f3b292 100644
--- a/arch/ppc/kernel/traps.c
+++ b/arch/ppc/kernel/traps.c
@@ -92,6 +92,7 @@
if (nl)
printk("\n");
show_regs(fp);
+ add_taint(TAINT_DIE);
spin_unlock_irq(&die_lock);
/* do_exit() should take care of panic'ing from an interrupt
* context so we don't handle it here
diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c
index 81e03b9..8ec9def 100644
--- a/arch/s390/kernel/traps.c
+++ b/arch/s390/kernel/traps.c
@@ -262,6 +262,7 @@
print_modules();
show_regs(regs);
bust_spinlocks(0);
+ add_taint(TAINT_DIE);
spin_unlock_irq(&die_lock);
if (in_interrupt())
panic("Fatal exception in interrupt");
diff --git a/arch/sh/kernel/traps.c b/arch/sh/kernel/traps.c
index 05a40f3..502d43e 100644
--- a/arch/sh/kernel/traps.c
+++ b/arch/sh/kernel/traps.c
@@ -103,6 +103,7 @@
(unsigned long)task_stack_page(current));
bust_spinlocks(0);
+ add_taint(TAINT_DIE);
spin_unlock_irq(&die_lock);
if (kexec_should_crash(current))
diff --git a/arch/sparc/kernel/traps.c b/arch/sparc/kernel/traps.c
index dc9ffea..3bc3bff 100644
--- a/arch/sparc/kernel/traps.c
+++ b/arch/sparc/kernel/traps.c
@@ -101,6 +101,7 @@
printk("%s(%d): %s [#%d]\n", current->comm, current->pid, str, ++die_counter);
show_regs(regs);
+ add_taint(TAINT_DIE);
__SAVE; __SAVE; __SAVE; __SAVE;
__SAVE; __SAVE; __SAVE; __SAVE;
diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c
index 00a9e32..6ef2d29 100644
--- a/arch/sparc64/kernel/traps.c
+++ b/arch/sparc64/kernel/traps.c
@@ -2225,6 +2225,7 @@
notify_die(DIE_OOPS, str, regs, 0, 255, SIGSEGV);
__asm__ __volatile__("flushw");
__show_regs(regs);
+ add_taint(TAINT_DIE);
if (regs->tstate & TSTATE_PRIV) {
struct reg_window *rw = (struct reg_window *)
(regs->u_regs[UREG_FP] + STACK_BIAS);
diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c
index 7fa155c..6963b64 100644
--- a/arch/x86_64/kernel/traps.c
+++ b/arch/x86_64/kernel/traps.c
@@ -518,6 +518,7 @@
printk("\n");
notify_die(DIE_OOPS, str, regs, err, current->thread.trap_no, SIGSEGV);
show_registers(regs);
+ add_taint(TAINT_DIE);
/* Executive summary in case the oops scrolled away */
printk(KERN_ALERT "RIP ");
printk_address(regs->rip);
diff --git a/arch/xtensa/kernel/traps.c b/arch/xtensa/kernel/traps.c
index 693ab26..c5e62f9 100644
--- a/arch/xtensa/kernel/traps.c
+++ b/arch/xtensa/kernel/traps.c
@@ -482,6 +482,7 @@
if (!user_mode(regs))
show_stack(NULL, (unsigned long*)regs->areg[1]);
+ add_taint(TAINT_DIE);
spin_unlock_irq(&die_lock);
if (in_interrupt())