16 files changed, 134 insertions, 106 deletions

diff --git a/arch/i386/kernel/Makefile b/arch/i386/kernel/Makefile
index 1b452a1665c4..ab98fc21a541 100644
--- a/arch/i386/kernel/Makefile
+++ b/arch/i386/kernel/Makefile
@@ -59,7 +59,8 @@ quiet_cmd_syscall = SYSCALL $@
 
 export CPPFLAGS_vsyscall.lds += -P -C -U$(ARCH)
 
-vsyscall-flags = -shared -s -Wl,-soname=linux-gate.so.1
+vsyscall-flags = -shared -s -Wl,-soname=linux-gate.so.1 \
+                 $(call ld-option, -Wl$(comma)--hash-style=sysv)
 SYSCFLAGS_vsyscall-sysenter.so  = $(vsyscall-flags)
 SYSCFLAGS_vsyscall-int80.so     = $(vsyscall-flags)
 
diff --git a/arch/i386/kernel/cpu/intel_cacheinfo.c b/arch/i386/kernel/cpu/intel_cacheinfo.c
index e9f0b928b0a9..5c43be47587f 100644
--- a/arch/i386/kernel/cpu/intel_cacheinfo.c
+++ b/arch/i386/kernel/cpu/intel_cacheinfo.c
@@ -759,7 +759,7 @@ static int __cpuinit cache_sysfs_init(void)
         if (num_cache_leaves == 0)
                 return 0;
 
-        register_cpu_notifier(&cacheinfo_cpu_notifier);
+        register_hotcpu_notifier(&cacheinfo_cpu_notifier);
 
         for_each_online_cpu(i) {
                 cacheinfo_cpu_callback(&cacheinfo_cpu_notifier, CPU_ONLINE,
diff --git a/arch/i386/kernel/cpu/mcheck/mce.h b/arch/i386/kernel/cpu/mcheck/mce.h
index dc2416dfef15..84fd4cf7d0fb 100644
--- a/arch/i386/kernel/cpu/mcheck/mce.h
+++ b/arch/i386/kernel/cpu/mcheck/mce.h
@@ -9,6 +9,6 @@ void winchip_mcheck_init(struct cpuinfo_x86 *c);
 /* Call the installed machine check handler for this CPU setup. */
 extern fastcall void (*machine_check_vector)(struct pt_regs *, long error_code);
 
-extern int mce_disabled __initdata;
+extern int mce_disabled;
 extern int nr_mce_banks;
 
diff --git a/arch/i386/kernel/crash.c b/arch/i386/kernel/crash.c
index 48f0f62f781c..5b96f038367f 100644
--- a/arch/i386/kernel/crash.c
+++ b/arch/i386/kernel/crash.c
@@ -90,7 +90,7 @@ static void crash_save_self(struct pt_regs *regs)
         crash_save_this_cpu(regs, cpu);
 }
 
-#ifdef CONFIG_SMP
+#if defined(CONFIG_SMP) && defined(CONFIG_X86_LOCAL_APIC)
 static atomic_t waiting_for_crash_ipi;
 
 static int crash_nmi_callback(struct pt_regs *regs, int cpu)
diff --git a/arch/i386/kernel/entry.S b/arch/i386/kernel/entry.S
index d9a260f2efb4..37a7d2eaf4a0 100644
--- a/arch/i386/kernel/entry.S
+++ b/arch/i386/kernel/entry.S
@@ -204,7 +204,7 @@ VM_MASK		= 0x00020000
 ENTRY(ret_from_fork)
         CFI_STARTPROC
         pushl %eax
-        CFI_ADJUST_CFA_OFFSET -4
+        CFI_ADJUST_CFA_OFFSET 4
         call schedule_tail
         GET_THREAD_INFO(%ebp)
         popl %eax
diff --git a/arch/i386/kernel/ioport.c b/arch/i386/kernel/ioport.c
index 79026f026b85..498e8bc197d5 100644
--- a/arch/i386/kernel/ioport.c
+++ b/arch/i386/kernel/ioport.c
@@ -79,6 +79,7 @@ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
 
                 memset(bitmap, 0xff, IO_BITMAP_BYTES);
                 t->io_bitmap_ptr = bitmap;
+                set_thread_flag(TIF_IO_BITMAP);
         }
 
         /*
diff --git a/arch/i386/kernel/kprobes.c b/arch/i386/kernel/kprobes.c
index de2e16e561c0..afe6505ca0b3 100644
--- a/arch/i386/kernel/kprobes.c
+++ b/arch/i386/kernel/kprobes.c
@@ -256,11 +256,6 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
         int ret = 0;
         kprobe_opcode_t *addr;
         struct kprobe_ctlblk *kcb;
-#ifdef CONFIG_PREEMPT
-        unsigned pre_preempt_count = preempt_count();
-#else
-        unsigned pre_preempt_count = 1;
-#endif
 
         addr = (kprobe_opcode_t *)(regs->eip - sizeof(kprobe_opcode_t));
 
@@ -338,13 +333,15 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
                 return 1;
 
 ss_probe:
-        if (pre_preempt_count && p->ainsn.boostable == 1 && !p->post_handler){
+#ifndef CONFIG_PREEMPT
+        if (p->ainsn.boostable == 1 && !p->post_handler){
                 /* Boost up -- we can execute copied instructions directly */
                 reset_current_kprobe();
                 regs->eip = (unsigned long)p->ainsn.insn;
                 preempt_enable_no_resched();
                 return 1;
         }
+#endif
         prepare_singlestep(p, regs);
         kcb->kprobe_status = KPROBE_HIT_SS;
         return 1;
diff --git a/arch/i386/kernel/machine_kexec.c b/arch/i386/kernel/machine_kexec.c
index 511abe52a94e..6b1ae6ba76f0 100644
--- a/arch/i386/kernel/machine_kexec.c
+++ b/arch/i386/kernel/machine_kexec.c
@@ -189,14 +189,11 @@ NORET_TYPE void machine_kexec(struct kimage *image)
         memcpy((void *)reboot_code_buffer, relocate_new_kernel,
                                                 relocate_new_kernel_size);
 
-        /* The segment registers are funny things, they are
-         * automatically loaded from a table, in memory wherever you
-         * set them to a specific selector, but this table is never
-         * accessed again you set the segment to a different selector.
-         *
-         * The more common model is are caches where the behide
-         * the scenes work is done, but is also dropped at arbitrary
-         * times.
+        /* The segment registers are funny things, they have both a
+         * visible and an invisible part.  Whenever the visible part is
+         * set to a specific selector, the invisible part is loaded
+         * with from a table in memory.  At no other time is the
+         * descriptor table in memory accessed.
          *
          * I take advantage of this here by force loading the
          * segments, before I zap the gdt with an invalid value.
diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c
index 2dd928a84645..acb351478e42 100644
--- a/arch/i386/kernel/nmi.c
+++ b/arch/i386/kernel/nmi.c
@@ -575,6 +575,7 @@ void touch_nmi_watchdog (void)
          */
         touch_softlockup_watchdog();
 }
+EXPORT_SYMBOL(touch_nmi_watchdog);
 
 extern void die_nmi(struct pt_regs *, const char *msg);
 
diff --git a/arch/i386/kernel/process.c b/arch/i386/kernel/process.c
index 94e2c87edeaa..8657c739656a 100644
--- a/arch/i386/kernel/process.c
+++ b/arch/i386/kernel/process.c
@@ -359,16 +359,16 @@ EXPORT_SYMBOL(kernel_thread);
  */
 void exit_thread(void)
 {
-        struct task_struct *tsk = current;
-        struct thread_struct *t = &tsk->thread;
-
         /* The process may have allocated an io port bitmap... nuke it. */
-        if (unlikely(NULL != t->io_bitmap_ptr)) {
+        if (unlikely(test_thread_flag(TIF_IO_BITMAP))) {
+                struct task_struct *tsk = current;
+                struct thread_struct *t = &tsk->thread;
                 int cpu = get_cpu();
                 struct tss_struct *tss = &per_cpu(init_tss, cpu);
 
                 kfree(t->io_bitmap_ptr);
                 t->io_bitmap_ptr = NULL;
+                clear_thread_flag(TIF_IO_BITMAP);
                 /*
                  * Careful, clear this in the TSS too:
                  */
@@ -387,6 +387,7 @@ void flush_thread(void)
 
         memset(tsk->thread.debugreg, 0, sizeof(unsigned long)*8);
         memset(tsk->thread.tls_array, 0, sizeof(tsk->thread.tls_array));        
+        clear_tsk_thread_flag(tsk, TIF_DEBUG);
         /*
          * Forget coprocessor state..
          */
@@ -431,7 +432,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long esp,
         savesegment(gs,p->thread.gs);
 
         tsk = current;
-        if (unlikely(NULL != tsk->thread.io_bitmap_ptr)) {
+        if (unlikely(test_tsk_thread_flag(tsk, TIF_IO_BITMAP))) {
                 p->thread.io_bitmap_ptr = kmalloc(IO_BITMAP_BYTES, GFP_KERNEL);
                 if (!p->thread.io_bitmap_ptr) {
                         p->thread.io_bitmap_max = 0;
@@ -439,6 +440,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long esp,
                 }
                 memcpy(p->thread.io_bitmap_ptr, tsk->thread.io_bitmap_ptr,
                         IO_BITMAP_BYTES);
+                set_tsk_thread_flag(p, TIF_IO_BITMAP);
         }
 
         /*
@@ -533,10 +535,24 @@ int dump_task_regs(struct task_struct *tsk, elf_gregset_t *regs)
         return 1;
 }
 
-static inline void
-handle_io_bitmap(struct thread_struct *next, struct tss_struct *tss)
+static noinline void __switch_to_xtra(struct task_struct *next_p,
+                                    struct tss_struct *tss)
 {
-        if (!next->io_bitmap_ptr) {
+        struct thread_struct *next;
+
+        next = &next_p->thread;
+
+        if (test_tsk_thread_flag(next_p, TIF_DEBUG)) {
+                set_debugreg(next->debugreg[0], 0);
+                set_debugreg(next->debugreg[1], 1);
+                set_debugreg(next->debugreg[2], 2);
+                set_debugreg(next->debugreg[3], 3);
+                /* no 4 and 5 */
+                set_debugreg(next->debugreg[6], 6);
+                set_debugreg(next->debugreg[7], 7);
+        }
+
+        if (!test_tsk_thread_flag(next_p, TIF_IO_BITMAP)) {
                 /*
                  * Disable the bitmap via an invalid offset. We still cache
                  * the previous bitmap owner and the IO bitmap contents:
@@ -544,6 +560,7 @@ handle_io_bitmap(struct thread_struct *next, struct tss_struct *tss)
                 tss->io_bitmap_base = INVALID_IO_BITMAP_OFFSET;
                 return;
         }
+
         if (likely(next == tss->io_bitmap_owner)) {
                 /*
                  * Previous owner of the bitmap (hence the bitmap content)
@@ -671,20 +688,11 @@ struct task_struct fastcall * __switch_to(struct task_struct *prev_p, struct tas
                 set_iopl_mask(next->iopl);
 
         /*
-         * Now maybe reload the debug registers
+         * Now maybe handle debug registers and/or IO bitmaps
          */
-        if (unlikely(next->debugreg[7])) {
-                set_debugreg(next->debugreg[0], 0);
-                set_debugreg(next->debugreg[1], 1);
-                set_debugreg(next->debugreg[2], 2);
-                set_debugreg(next->debugreg[3], 3);
-                /* no 4 and 5 */
-                set_debugreg(next->debugreg[6], 6);
-                set_debugreg(next->debugreg[7], 7);
-        }
-
-        if (unlikely(prev->io_bitmap_ptr || next->io_bitmap_ptr))
-                handle_io_bitmap(next, tss);
+        if (unlikely((task_thread_info(next_p)->flags & _TIF_WORK_CTXSW)
+            || test_tsk_thread_flag(prev_p, TIF_IO_BITMAP)))
+                __switch_to_xtra(next_p, tss);
 
         disable_tsc(prev_p, next_p);
 
diff --git a/arch/i386/kernel/ptrace.c b/arch/i386/kernel/ptrace.c
index fd7eaf7866e0..d3db03f4085d 100644
--- a/arch/i386/kernel/ptrace.c
+++ b/arch/i386/kernel/ptrace.c
@@ -468,8 +468,11 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
                                   for(i=0; i<4; i++)
                                           if ((0x5f54 >> ((data >> (16 + 4*i)) & 0xf)) & 1)
                                                   goto out_tsk;
+                                  if (data)
+                                          set_tsk_thread_flag(child, TIF_DEBUG);
+                                  else
+                                          clear_tsk_thread_flag(child, TIF_DEBUG);
                           }
-
                           addr -= (long) &dummy->u_debugreg;
                           addr = addr >> 2;
                           child->thread.debugreg[addr] = data;
diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c
index 08c00d20f162..f1682206d304 100644
--- a/arch/i386/kernel/setup.c
+++ b/arch/i386/kernel/setup.c
@@ -26,7 +26,7 @@
 #include <linux/sched.h>
 #include <linux/mm.h>
 #include <linux/mmzone.h>
-#include <linux/tty.h>
+#include <linux/screen_info.h>
 #include <linux/ioport.h>
 #include <linux/acpi.h>
 #include <linux/apm_bios.h>
@@ -1327,7 +1327,10 @@ legacy_init_iomem_resources(struct resource *code_resource, struct resource *dat
                 res->start = e820.map[i].addr;
                 res->end = res->start + e820.map[i].size - 1;
                 res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
-                request_resource(&iomem_resource, res);
+                if (request_resource(&iomem_resource, res)) {
+                        kfree(res);
+                        continue;
+                }
                 if (e820.map[i].type == E820_RAM) {
                         /*
                          *  We don't know which RAM region contains kernel data,
diff --git a/arch/i386/kernel/smpboot.c b/arch/i386/kernel/smpboot.c
index 6f5fea05f1d7..f948419c888a 100644
--- a/arch/i386/kernel/smpboot.c
+++ b/arch/i386/kernel/smpboot.c
@@ -212,14 +212,20 @@ valid_k7:
  * then we print a warning if not, and always resync.
  */
 
-static atomic_t tsc_start_flag = ATOMIC_INIT(0);
-static atomic_t tsc_count_start = ATOMIC_INIT(0);
-static atomic_t tsc_count_stop = ATOMIC_INIT(0);
-static unsigned long long tsc_values[NR_CPUS];
+static struct {
+        atomic_t start_flag;
+        atomic_t count_start;
+        atomic_t count_stop;
+        unsigned long long values[NR_CPUS];
+} tsc __initdata = {
+        .start_flag = ATOMIC_INIT(0),
+        .count_start = ATOMIC_INIT(0),
+        .count_stop = ATOMIC_INIT(0),
+};
 
 #define NR_LOOPS 5
 
-static void __init synchronize_tsc_bp (void)
+static void __init synchronize_tsc_bp(void)
 {
         int i;
         unsigned long long t0;
@@ -233,7 +239,7 @@ static void __init synchronize_tsc_bp (void)
         /* convert from kcyc/sec to cyc/usec */
         one_usec = cpu_khz / 1000;
 
-        atomic_set(&tsc_start_flag, 1);
+        atomic_set(&tsc.start_flag, 1);
         wmb();
 
         /*
@@ -250,16 +256,16 @@ static void __init synchronize_tsc_bp (void)
                 /*
                  * all APs synchronize but they loop on '== num_cpus'
                  */
-                while (atomic_read(&tsc_count_start) != num_booting_cpus()-1)
+                while (atomic_read(&tsc.count_start) != num_booting_cpus()-1)
                         cpu_relax();
-                atomic_set(&tsc_count_stop, 0);
+                atomic_set(&tsc.count_stop, 0);
                 wmb();
                 /*
                  * this lets the APs save their current TSC:
                  */
-                atomic_inc(&tsc_count_start);
+                atomic_inc(&tsc.count_start);
 
-                rdtscll(tsc_values[smp_processor_id()]);
+                rdtscll(tsc.values[smp_processor_id()]);
                 /*
                  * We clear the TSC in the last loop:
                  */
@@ -269,56 +275,54 @@ static void __init synchronize_tsc_bp (void)
                 /*
                  * Wait for all APs to leave the synchronization point:
                  */
-                while (atomic_read(&tsc_count_stop) != num_booting_cpus()-1)
+                while (atomic_read(&tsc.count_stop) != num_booting_cpus()-1)
                         cpu_relax();
-                atomic_set(&tsc_count_start, 0);
+                atomic_set(&tsc.count_start, 0);
                 wmb();
-                atomic_inc(&tsc_count_stop);
+                atomic_inc(&tsc.count_stop);
         }
 
         sum = 0;
         for (i = 0; i < NR_CPUS; i++) {
                 if (cpu_isset(i, cpu_callout_map)) {
-                        t0 = tsc_values[i];
+                        t0 = tsc.values[i];
                         sum += t0;
                 }
         }
         avg = sum;
         do_div(avg, num_booting_cpus());
 
-        sum = 0;
         for (i = 0; i < NR_CPUS; i++) {
                 if (!cpu_isset(i, cpu_callout_map))
                         continue;
-                delta = tsc_values[i] - avg;
+                delta = tsc.values[i] - avg;
                 if (delta < 0)
                         delta = -delta;
                 /*
                  * We report bigger than 2 microseconds clock differences.
                  */
                 if (delta > 2*one_usec) {
-                        long realdelta;
+                        long long realdelta;
+
                         if (!buggy) {
                                 buggy = 1;
                                 printk("\n");
                         }
                         realdelta = delta;
                         do_div(realdelta, one_usec);
-                        if (tsc_values[i] < avg)
+                        if (tsc.values[i] < avg)
                                 realdelta = -realdelta;
 
-                        if (realdelta > 0)
-                                printk(KERN_INFO "CPU#%d had %ld usecs TSC "
+                        if (realdelta)
+                                printk(KERN_INFO "CPU#%d had %Ld usecs TSC "
                                         "skew, fixed it up.\n", i, realdelta);
                 }
-
-                sum += delta;
         }
         if (!buggy)
                 printk("passed.\n");
 }
 
-static void __init synchronize_tsc_ap (void)
+static void __init synchronize_tsc_ap(void)
 {
         int i;
 
@@ -327,20 +331,20 @@ static void __init synchronize_tsc_ap (void)
          * this gets called, so we first wait for the BP to
          * finish SMP initialization:
          */
-        while (!atomic_read(&tsc_start_flag))
+        while (!atomic_read(&tsc.start_flag))
                 cpu_relax();
 
         for (i = 0; i < NR_LOOPS; i++) {
-                atomic_inc(&tsc_count_start);
-                while (atomic_read(&tsc_count_start) != num_booting_cpus())
+                atomic_inc(&tsc.count_start);
+                while (atomic_read(&tsc.count_start) != num_booting_cpus())
                         cpu_relax();
 
-                rdtscll(tsc_values[smp_processor_id()]);
+                rdtscll(tsc.values[smp_processor_id()]);
                 if (i == NR_LOOPS-1)
                         write_tsc(0, 0);
 
-                atomic_inc(&tsc_count_stop);
-                while (atomic_read(&tsc_count_stop) != num_booting_cpus())
+                atomic_inc(&tsc.count_stop);
+                while (atomic_read(&tsc.count_stop) != num_booting_cpus())
                         cpu_relax();
         }
 }
diff --git a/arch/i386/kernel/time.c b/arch/i386/kernel/time.c
index 316421a7f56f..edd00f6cee37 100644
--- a/arch/i386/kernel/time.c
+++ b/arch/i386/kernel/time.c
@@ -135,7 +135,7 @@ unsigned long profile_pc(struct pt_regs *regs)
 {
         unsigned long pc = instruction_pointer(regs);
 
-        if (in_lock_functions(pc))
+        if (!user_mode_vm(regs) && in_lock_functions(pc))
                 return *(unsigned long *)(regs->ebp + 4);
 
         return pc;
@@ -206,15 +206,16 @@ irqreturn_t timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 unsigned long get_cmos_time(void)
 {
         unsigned long retval;
+        unsigned long flags;
 
-        spin_lock(&rtc_lock);
+        spin_lock_irqsave(&rtc_lock, flags);
 
         if (efi_enabled)
                 retval = efi_get_time();
         else
                 retval = mach_get_cmos_time();
 
-        spin_unlock(&rtc_lock);
+        spin_unlock_irqrestore(&rtc_lock, flags);
 
         return retval;
 }
diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c
index 2bf8b55b91f8..0d4005dc06c5 100644
--- a/arch/i386/kernel/traps.c
+++ b/arch/i386/kernel/traps.c
@@ -100,13 +100,13 @@ int register_die_notifier(struct notifier_block *nb)
         vmalloc_sync_all();
         return atomic_notifier_chain_register(&i386die_chain, nb);
 }
-EXPORT_SYMBOL(register_die_notifier);
+EXPORT_SYMBOL(register_die_notifier); /* used modular by kdb */
 
 int unregister_die_notifier(struct notifier_block *nb)
 {
         return atomic_notifier_chain_unregister(&i386die_chain, nb);
 }
-EXPORT_SYMBOL(unregister_die_notifier);
+EXPORT_SYMBOL(unregister_die_notifier); /* used modular by kdb */
 
 static inline int valid_stack_ptr(struct thread_info *tinfo, void *p)
 {
@@ -187,10 +187,21 @@ static void show_trace_log_lvl(struct task_struct *task, struct pt_regs *regs,
                         if (unwind_init_blocked(&info, task) == 0)
                                 unw_ret = show_trace_unwind(&info, log_lvl);
                 }
-                if (unw_ret > 0) {
-                        if (call_trace > 0)
+                if (unw_ret > 0 && !arch_unw_user_mode(&info)) {
+#ifdef CONFIG_STACK_UNWIND
+                        print_symbol("DWARF2 unwinder stuck at %s\n",
+                                     UNW_PC(&info));
+                        if (call_trace == 1) {
+                                printk("Leftover inexact backtrace:\n");
+                                if (UNW_SP(&info))
+                                        stack = (void *)UNW_SP(&info);
+                        } else if (call_trace > 1)
                                 return;
-                        printk("%sLegacy call trace:\n", log_lvl);
+                        else
+                                printk("Full inexact backtrace again:\n");
+#else
+                        printk("Inexact backtrace:\n");
+#endif
                 }
         }
 
@@ -324,35 +335,35 @@ void show_registers(struct pt_regs *regs)
 
 static void handle_BUG(struct pt_regs *regs)
 {
+        unsigned long eip = regs->eip;
         unsigned short ud2;
-        unsigned short line;
-        char *file;
-        char c;
-        unsigned long eip;
-
-        eip = regs->eip;
 
         if (eip < PAGE_OFFSET)
-                goto no_bug;
+                return;
         if (__get_user(ud2, (unsigned short __user *)eip))
-                goto no_bug;
+                return;
         if (ud2 != 0x0b0f)
-                goto no_bug;
-        if (__get_user(line, (unsigned short __user *)(eip + 2)))
-                goto bug;
-        if (__get_user(file, (char * __user *)(eip + 4)) ||
-                (unsigned long)file < PAGE_OFFSET || __get_user(c, file))
-                file = "<bad filename>";
+                return;
 
         printk(KERN_EMERG "------------[ cut here ]------------\n");
-        printk(KERN_EMERG "kernel BUG at %s:%d!\n", file, line);
 
-no_bug:
-        return;
+#ifdef CONFIG_DEBUG_BUGVERBOSE
+        do {
+                unsigned short line;
+                char *file;
+                char c;
+
+                if (__get_user(line, (unsigned short __user *)(eip + 2)))
+                        break;
+                if (__get_user(file, (char * __user *)(eip + 4)) ||
+                    (unsigned long)file < PAGE_OFFSET || __get_user(c, file))
+                        file = "<bad filename>";
 
-        /* Here we know it was a BUG but file-n-line is unavailable */
-bug:
-        printk(KERN_EMERG "Kernel BUG\n");
+                printk(KERN_EMERG "kernel BUG at %s:%d!\n", file, line);
+                return;
+        } while (0);
+#endif
+        printk(KERN_EMERG "Kernel BUG at [verbose debug info unavailable]\n");
 }
 
 /* This is gone through when something in the kernel
@@ -442,11 +453,9 @@ void die(const char * str, struct pt_regs * regs, long err)
         if (in_interrupt())
                 panic("Fatal exception in interrupt");
 
-        if (panic_on_oops) {
-                printk(KERN_EMERG "Fatal exception: panic in 5 seconds\n");
-                ssleep(5);
-                panic("Fatal exception");
-        }
+        if (panic_on_oops)
+                panic("Fatal exception: panic_on_oops");
+
         oops_exit();
         do_exit(SIGSEGV);
 }
@@ -1238,8 +1247,10 @@ static int __init call_trace_setup(char *s)
                 call_trace = -1;
         else if (strcmp(s, "both") == 0)
                 call_trace = 0;
-        else if (strcmp(s, "new") == 0)
+        else if (strcmp(s, "newfallback") == 0)
                 call_trace = 1;
+        else if (strcmp(s, "new") == 2)
+                call_trace = 2;
         return 1;
 }
 __setup("call_trace=", call_trace_setup);
diff --git a/arch/i386/kernel/vsyscall.lds.S b/arch/i386/kernel/vsyscall.lds.S
index e26975fc68b6..f66cd11adb72 100644
--- a/arch/i386/kernel/vsyscall.lds.S
+++ b/arch/i386/kernel/vsyscall.lds.S
@@ -10,6 +10,7 @@ SECTIONS
   . = VDSO_PRELINK + SIZEOF_HEADERS;
 
   .hash           : { *(.hash) }                :text
+  .gnu.hash       : { *(.gnu.hash) }
   .dynsym         : { *(.dynsym) }
   .dynstr         : { *(.dynstr) }
   .gnu.version    : { *(.gnu.version) }