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Heiko Carstens 608e261968 generic bug: use show_regs() instead of dump_stack() 
The current generic bug implementation has a call to dump_stack() in case a
WARN_ON(whatever) gets hit.  Since report_bug(), which calls dump_stack(),
gets called from an exception handler we can do better: just pass the
pt_regs structure to report_bug() and pass it to show_regs() in case of a
warning.  This will give more debug informations like register contents,
etc...  In addition this avoids some pointless lines that dump_stack()
emits, since it includes a stack backtrace of the exception handler which
is of no interest in case of a warning.  E.g.  on s390 the following lines
are currently always present in a stack backtrace if dump_stack() gets
called from report_bug():

 [<000000000001517a>] show_trace+0x92/0xe8)
 [<0000000000015270>] show_stack+0xa0/0xd0
 [<00000000000152ce>] dump_stack+0x2e/0x3c
 [<0000000000195450>] report_bug+0x98/0xf8
 [<0000000000016cc8>] illegal_op+0x1fc/0x21c
 [<00000000000227d6>] sysc_return+0x0/0x10

Acked-by: Jeremy Fitzhardinge <jeremy@goop.org>
Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Kyle McMartin <kyle@parisc-linux.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2007-07-16 09:05:51 -07:00
..
acpi Remove some unused variables 2007-07-03 18:27:53 -07:00
cpu [CPUFREQ] Fix typos in powernow-k8 printk's. 2007-07-13 01:34:10 -04:00
.gitignore
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Makefile i386: move common parts of smp into their own file 2007-05-15 08:54:00 -07:00
alternative.c Revert "[PATCH] x86: __pa and __pa_symbol address space separation" 2007-05-07 08:44:24 -07:00
apic.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
apm.c apm: fix incorrect comment 2007-05-08 11:15:10 -07:00
asm-offsets.c [PATCH] i386: map enough initial memory to create lowmem mappings 2007-05-02 19:27:16 +02:00
bootflag.c
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cpuid.c Add suspend-related notifications for CPU hotplug 2007-05-09 12:30:56 -07:00
crash.c move die notifier handling to common code 2007-05-08 11:15:04 -07:00
crash_dump.c
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doublefault.c [PATCH] i386: i386 separate hardware-defined TSS from Linux additions 2007-05-02 19:27:13 +02:00
e820.c Make definitions for struct e820entry and struct e820map consistent 2007-07-12 10:55:54 -07:00
early_printk.c
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efi.c EFI: warn only for pre-1.00 system tables 2007-05-08 11:15:10 -07:00
efi_stub.S [PATCH] x86: remove unused include from efi_stub.S 2006-09-26 08:48:56 -07:00
entry.S i386: fix regression, endless loop in ptrace singlestep over an int80 2007-07-06 10:23:43 -07:00
head.S x86: initial fixmap support 2007-07-16 09:05:35 -07:00
hpet.c [PATCH] Add suspend/resume for HPET 2007-03-29 10:25:32 -07:00
i386_ksyms.c [PATCH] i386: Convert PDA into the percpu section 2007-05-02 19:27:16 +02:00
i387.c
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i8237.c [PATCH] mmc (mainly): add "or later" clause to licence statement. 2006-10-01 00:39:23 -07:00
i8253.c [VOYAGER] clockevents: correct boot cpu is zero assumption 2007-05-01 10:06:42 -05:00
i8259.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
init_task.c [PATCH] nsproxy: move init_nsproxy into kernel/nsproxy.c 2006-10-02 07:57:20 -07:00
io_apic.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
ioport.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
irq.c [PATCH] i386: Convert PDA into the percpu section 2007-05-02 19:27:16 +02:00
kprobes.c Kprobes: The ON/OFF knob thru debugfs 2007-05-08 11:15:19 -07:00
ldt.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
legacy_serial.c x86, serial: convert legacy COM ports to platform devices 2007-05-08 11:15:23 -07:00
machine_kexec.c [PATCH] i386: Avoid overwriting the current pgd (V4, i386) 2006-09-26 10:52:38 +02:00
mca.c [PATCH] i386: replace kmalloc+memset with kzalloc 2006-12-07 02:14:19 +01:00
microcode.c microcode: fix section mismatch warning 2007-06-01 08:18:30 -07:00
module.c [PATCH] Generic BUG for i386 2006-12-08 08:28:39 -08:00
mpparse.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
msr.c Add suspend-related notifications for CPU hotplug 2007-05-09 12:30:56 -07:00
nmi.c move die notifier handling to common code 2007-05-08 11:15:04 -07:00
numaq.c
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paravirt.c Revert "[PATCH] paravirt: Add startup infrastructure for paravirtualization" 2007-05-10 09:26:53 -07:00
pci-dma.c x86: Disable DAC on VIA bridges 2007-06-20 14:27:25 -07:00
pcspeaker.c [PATCH] x86: Unify pcspeaker platform device code between i386/x86-64 2007-02-13 13:26:26 +01:00
process.c make seccomp zerocost in schedule 2007-07-16 09:05:50 -07:00
ptrace.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
quirks.c Clean up E7520/7320/7525 quirk printk. 2007-07-07 13:53:13 -07:00
reboot.c Work around Dell E520 BIOS reboot bug 2007-06-01 08:18:28 -07:00
reboot_fixups.c GEODE: reboot fixup for geode machines with CS5536 boards 2007-07-06 11:45:11 -07:00
relocate_kernel.S [PATCH] i386: Avoid overwriting the current pgd (V4, i386) 2006-09-26 10:52:38 +02:00
scx200.c
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setup.c Make struct boot_params a real structure, and remove obsolete fields 2007-07-12 10:55:54 -07:00
sigframe.h
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signal.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
smp.c i386: don't check_pgt_cache in flush_tlb_mm 2007-05-17 05:23:05 -07:00
smpboot.c sched: zap the migration init / cache-hot balancing code 2007-07-09 18:51:57 +02:00
smpcommon.c i386: move common parts of smp into their own file 2007-05-15 08:54:00 -07:00
srat.c ACPI: build fix for IBM x440 - CONFIG_X86_SUMMIT 2007-02-02 21:47:33 -05:00
summit.c
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sys_i386.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
syscall_table.S signal/timer/event: eventfd wire up x86 arches 2007-05-11 08:29:37 -07:00
sysenter.c [PATCH] i386: In compat mode, the return value here was uninitialized. 2007-05-02 19:27:16 +02:00
time.c [PATCH] i386: pit_latch_buggy has no effect 2007-05-02 19:27:05 +02:00
topology.c Replace remaining references to "driverfs" with "sysfs". 2007-02-17 19:13:42 +01:00
trampoline.S [PATCH] i386: Rename boot_gdt_table to boot_gdt 2007-05-02 19:27:10 +02:00
traps.c generic bug: use show_regs() instead of dump_stack() 2007-07-16 09:05:51 -07:00
tsc.c sched: x86, track TSC-unstable events 2007-07-09 18:51:59 +02:00
tsc_sync.c [PATCH] x86: rewrite SMP TSC sync code 2007-02-16 08:13:57 -08:00
vm86.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
vmi.c Fix vmi.c compilation 2007-06-01 08:18:27 -07:00
vmiclock.c [PATCH] i386: Convert VMI timer to use clock events 2007-05-02 19:27:16 +02:00
vmlinux.lds.S all-archs: consolidate .data section definition in asm-generic 2007-05-19 09:11:57 +02:00
vsyscall-int80.S
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vsyscall-note.S
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vsyscall-sigreturn.S
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vsyscall-sysenter.S
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vsyscall.S
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vsyscall.lds.S [PATCH] i386: VDSO_PRELINK warning fix 2007-05-02 19:27:09 +02:00