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yaml
---
r: 60758
b: refs/heads/master
c: bcdcd8e
h: refs/heads/master
v: v3
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Pavel Emelianov authored and Linus Torvalds committed Jul 17, 2007
1 parent e6c4c64 commit 45c86bf
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Showing 22 changed files with 25 additions and 3 deletions.
2 changes: 1 addition & 1 deletion [refs]
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@@ -1,2 +1,2 @@
---
refs/heads/master: 74489a91dd43aecd638709d34a2f58b91cfda5cf
refs/heads/master: bcdcd8e725b923ad7c0de809680d5d5658a7bf8c
2 changes: 2 additions & 0 deletions trunk/Documentation/oops-tracing.txt
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Expand Up @@ -251,6 +251,8 @@ characters, each representing a particular tainted value.
7: 'U' if a user or user application specifically requested that the
Tainted flag be set, ' ' otherwise.

8: 'D' if the kernel has died recently, i.e. there was an OOPS or BUG.

The primary reason for the 'Tainted: ' string is to tell kernel
debuggers if this is a clean kernel or if anything unusual has
occurred. Tainting is permanent: even if an offending module is
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1 change: 1 addition & 0 deletions trunk/arch/alpha/kernel/traps.c
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Expand Up @@ -184,6 +184,7 @@ die_if_kernel(char * str, struct pt_regs *regs, long err, unsigned long *r9_15)
#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);

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1 change: 1 addition & 0 deletions trunk/arch/arm/kernel/traps.c
Original file line number Diff line number Diff line change
Expand Up @@ -249,6 +249,7 @@ NORET_TYPE void die(const char *str, struct pt_regs *regs, int err)
bust_spinlocks(1);
__die(str, err, thread, regs);
bust_spinlocks(0);
add_taint(TAINT_DIE);
spin_unlock_irq(&die_lock);

if (in_interrupt())
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1 change: 1 addition & 0 deletions trunk/arch/arm26/kernel/traps.c
Original file line number Diff line number Diff line change
Expand Up @@ -185,6 +185,7 @@ NORET_TYPE void die(const char *str, struct pt_regs *regs, int err)
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));

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1 change: 1 addition & 0 deletions trunk/arch/avr32/kernel/traps.c
Original file line number Diff line number Diff line change
Expand Up @@ -56,6 +56,7 @@ void NORET_TYPE die(const char *str, struct pt_regs *regs, long err)
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())
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1 change: 1 addition & 0 deletions trunk/arch/i386/kernel/traps.c
Original file line number Diff line number Diff line change
Expand Up @@ -433,6 +433,7 @@ void die(const char * str, struct pt_regs * regs, long err)

bust_spinlocks(0);
die.lock_owner = -1;
add_taint(TAINT_DIE);
spin_unlock_irqrestore(&die.lock, flags);

if (!regs)
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1 change: 1 addition & 0 deletions trunk/arch/ia64/kernel/traps.c
Original file line number Diff line number Diff line change
Expand Up @@ -69,6 +69,7 @@ die (const char *str, struct pt_regs *regs, long err)

bust_spinlocks(0);
die.lock_owner = -1;
add_taint(TAINT_DIE);
spin_unlock_irq(&die.lock);

if (panic_on_oops)
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1 change: 1 addition & 0 deletions trunk/arch/m68k/kernel/traps.c
Original file line number Diff line number Diff line change
Expand Up @@ -1170,6 +1170,7 @@ void die_if_kernel (char *str, struct pt_regs *fp, int nr)
console_verbose();
printk("%s: %08x\n",str,nr);
show_registers(fp);
add_taint(TAINT_DIE);
do_exit(SIGSEGV);
}

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1 change: 1 addition & 0 deletions trunk/arch/m68knommu/kernel/traps.c
Original file line number Diff line number Diff line change
Expand Up @@ -83,6 +83,7 @@ void die_if_kernel(char *str, struct pt_regs *fp, int nr)
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);
}

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1 change: 1 addition & 0 deletions trunk/arch/mips/kernel/traps.c
Original file line number Diff line number Diff line change
Expand Up @@ -326,6 +326,7 @@ void __noreturn die(const char * str, struct pt_regs * regs)
#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())
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1 change: 1 addition & 0 deletions trunk/arch/parisc/kernel/traps.c
Original file line number Diff line number Diff line change
Expand Up @@ -264,6 +264,7 @@ KERN_CRIT " || ||\n");

show_regs(regs);
dump_stack();
add_taint(TAINT_DIE);

if (in_interrupt())
panic("Fatal exception in interrupt");
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1 change: 1 addition & 0 deletions trunk/arch/powerpc/kernel/traps.c
Original file line number Diff line number Diff line change
Expand Up @@ -149,6 +149,7 @@ int die(const char *str, struct pt_regs *regs, long err)

bust_spinlocks(0);
die.lock_owner = -1;
add_taint(TAINT_DIE);
spin_unlock_irqrestore(&die.lock, flags);

if (kexec_should_crash(current) ||
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1 change: 1 addition & 0 deletions trunk/arch/ppc/kernel/traps.c
Original file line number Diff line number Diff line change
Expand Up @@ -92,6 +92,7 @@ int die(const char * str, struct pt_regs * fp, long err)
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
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1 change: 1 addition & 0 deletions trunk/arch/s390/kernel/traps.c
Original file line number Diff line number Diff line change
Expand Up @@ -262,6 +262,7 @@ void die(const char * str, struct pt_regs * regs, long err)
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");
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1 change: 1 addition & 0 deletions trunk/arch/sh/kernel/traps.c
Original file line number Diff line number Diff line change
Expand Up @@ -103,6 +103,7 @@ void die(const char * str, struct pt_regs * regs, long err)
(unsigned long)task_stack_page(current));

bust_spinlocks(0);
add_taint(TAINT_DIE);
spin_unlock_irq(&die_lock);

if (kexec_should_crash(current))
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1 change: 1 addition & 0 deletions trunk/arch/sparc/kernel/traps.c
Original file line number Diff line number Diff line change
Expand Up @@ -101,6 +101,7 @@ void die_if_kernel(char *str, struct pt_regs *regs)

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;
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1 change: 1 addition & 0 deletions trunk/arch/sparc64/kernel/traps.c
Original file line number Diff line number Diff line change
Expand Up @@ -2225,6 +2225,7 @@ void die_if_kernel(char *str, struct pt_regs *regs)
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);
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1 change: 1 addition & 0 deletions trunk/arch/x86_64/kernel/traps.c
Original file line number Diff line number Diff line change
Expand Up @@ -518,6 +518,7 @@ void __kprobes __die(const char * str, struct pt_regs * regs, long err)
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);
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1 change: 1 addition & 0 deletions trunk/arch/xtensa/kernel/traps.c
Original file line number Diff line number Diff line change
Expand Up @@ -482,6 +482,7 @@ void die(const char * str, struct pt_regs * regs, long err)
if (!user_mode(regs))
show_stack(NULL, (unsigned long*)regs->areg[1]);

add_taint(TAINT_DIE);
spin_unlock_irq(&die_lock);

if (in_interrupt())
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1 change: 1 addition & 0 deletions trunk/include/linux/kernel.h
Original file line number Diff line number Diff line change
Expand Up @@ -210,6 +210,7 @@ extern enum system_states {
#define TAINT_MACHINE_CHECK (1<<4)
#define TAINT_BAD_PAGE (1<<5)
#define TAINT_USER (1<<6)
#define TAINT_DIE (1<<7)

extern void dump_stack(void);

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5 changes: 3 additions & 2 deletions trunk/kernel/panic.c
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Expand Up @@ -159,14 +159,15 @@ const char *print_tainted(void)
{
static char buf[20];
if (tainted) {
snprintf(buf, sizeof(buf), "Tainted: %c%c%c%c%c%c%c",
snprintf(buf, sizeof(buf), "Tainted: %c%c%c%c%c%c%c%c",
tainted & TAINT_PROPRIETARY_MODULE ? 'P' : 'G',
tainted & TAINT_FORCED_MODULE ? 'F' : ' ',
tainted & TAINT_UNSAFE_SMP ? 'S' : ' ',
tainted & TAINT_FORCED_RMMOD ? 'R' : ' ',
tainted & TAINT_MACHINE_CHECK ? 'M' : ' ',
tainted & TAINT_BAD_PAGE ? 'B' : ' ',
tainted & TAINT_USER ? 'U' : ' ');
tainted & TAINT_USER ? 'U' : ' ',
tainted & TAINT_DIE ? 'D' : ' ');
}
else
snprintf(buf, sizeof(buf), "Not tainted");
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