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linux/arch/mips/kernel
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Jason Wessel f0a996eeed mips,kgdb: fix recursive page fault with CONFIG_KPROBES 
This fault was detected using the kgdb test suite on boot and it
crashes recursively due to the fact that CONFIG_KPROBES on mips adds
an extra die notifier in the page fault handler.  The crash signature
looks like this:

kgdbts:RUN bad memory access test
KGDB: re-enter exception: ALL breakpoints killed
Call Trace:
[<807b7548>] dump_stack+0x20/0x54
[<807b7548>] dump_stack+0x20/0x54

The fix for now is to have kgdb return immediately if the fault type
is DIE_PAGE_FAULT and allow the kprobe code to decide what is supposed
to happen.

Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
2012-10-12 06:37:34 -05:00
..
cpufreq
MIPS: Loongson 2: Sort out clock managment.
2012-08-01 18:10:06 +02:00
.gitignore
[MIPS] Ignore vmlinux.lds generated files
2008-08-26 09:10:27 +01:00
8250-platform.c
mips: remove needless include of module.h from core kernel files.
2011-10-31 19:30:57 -04:00
asm-offsets.c
MIPS: Remove unused task_struct.trap_no field.
2010-08-05 13:26:30 +01:00
binfmt_elfn32.c
remove div_long_long_rem
2008-05-01 08:03:58 -07:00
binfmt_elfo32.c
MIPS: 64-bit: Fix o32 core dump
2009-07-03 15:45:27 +01:00
bmips_vec.S
MIPS: BMIPS: Add SMP support code for BMIPS43xx/BMIPS5000
2011-12-07 22:03:18 +00:00
branch.c
MIPS Kprobes: Refactor branch emulation
2011-12-07 22:04:03 +00:00
cevt-bcm1480.c
MIPS: irq: Remove IRQF_DISABLED
2011-12-07 22:03:45 +00:00
cevt-ds1287.c
MIPS: irq: Remove IRQF_DISABLED
2011-12-07 22:03:45 +00:00
cevt-gt641xx.c
MIPS: irq: Remove IRQF_DISABLED
2011-12-07 22:03:45 +00:00
cevt-r4k.c
MIPS: irq: Remove IRQF_DISABLED
2011-12-07 22:03:45 +00:00
cevt-sb1250.c
MIPS: irq: Remove IRQF_DISABLED
2011-12-07 22:03:45 +00:00
cevt-smtc.c
MIPS: Add missing #inclusions of <linux/irq.h>
2010-10-07 14:08:54 +01:00
cevt-txx9.c
MIPS: irq: Remove IRQF_DISABLED
2011-12-07 22:03:45 +00:00
cpu-bugs64.c
Disintegrate asm/system.h for MIPS
2012-03-28 18:30:02 +01:00
cpu-probe.c
MIPS: Add CPU support for Loongson1B
2012-07-23 13:57:04 +01:00
csrc-bcm1480.c
mips: convert to clocksource_register_hz/khz
2011-02-21 13:33:50 -08:00
csrc-ioasic.c
mips: convert to clocksource_register_hz/khz
2011-02-21 13:33:50 -08:00
csrc-powertv.c
mips: convert to clocksource_register_hz/khz
2011-02-21 13:33:50 -08:00
csrc-r4k.c
mips: convert to clocksource_register_hz/khz
2011-02-21 13:33:50 -08:00
csrc-sb1250.c
mips: convert to clocksource_register_hz/khz
2011-02-21 13:33:50 -08:00
early_printk.c
[MIPS] fix sparse warning about setup_early_printk()
2008-07-15 18:44:29 +01:00
entry.S
MIPS: Split do_syscall_trace into two functions.
2011-05-19 09:55:44 +01:00
ftrace.c
MIPS: Ftrace: Fix the CONFIG_DYNAMIC_FTRACE=n compile
2011-09-21 17:52:04 +02:00
genex.S
MIPS: Read watch registers with interrupts disabled.
2009-01-30 21:32:58 +00:00
gpio_txx9.c
[MIPS] txx9: Make gpio_txx9 entirely spinlock-safe
2008-07-15 18:44:34 +01:00
head.S
MIPS: Avoid potential hazard on Context register
2009-11-02 12:00:07 +01:00
i8253.c
MIPS: irq: Remove IRQF_DISABLED
2011-12-07 22:03:45 +00:00
i8259.c
MIPS: i8259: Mark cascade interrupt non-threaded
2011-09-21 17:52:28 +02:00
irq_cpu.c
Disintegrate asm/system.h for MIPS
2012-03-28 18:30:02 +01:00
irq_txx9.c
MIPS: Convert the irq functions to the new names
2011-03-29 14:48:07 +02:00
irq-gic.c
MIPS: Convert the irq functions to the new names
2011-03-29 14:48:07 +02:00
irq-gt641xx.c
MIPS: Convert the irq functions to the new names
2011-03-29 14:48:07 +02:00
irq-msc01.c
mips: remove needless include of module.h from core kernel files.
2011-10-31 19:30:57 -04:00
irq-rm7000.c
Disintegrate asm/system.h for MIPS
2012-03-28 18:30:02 +01:00
irq-rm9000.c
Disintegrate asm/system.h for MIPS
2012-03-28 18:30:02 +01:00
irq.c
Disintegrate asm/system.h for MIPS
2012-03-28 18:30:02 +01:00
jump_label.c
MIPS: jump label: Add MIPS support.
2011-01-18 19:30:24 +01:00
kgdb.c
mips,kgdb: fix recursive page fault with CONFIG_KPROBES
2012-10-12 06:37:34 -05:00
kprobes.c
MIPS Kprobes: Support branch instructions probing
2011-12-07 22:04:03 +00:00
kspd.c
posix_types.h: Cleanup stale __NFDBITS and related definitions
2012-07-26 13:36:43 -07:00
linux32.c
MIPS: Compat: Use 32-bit wrapper for compat_sys_futex.
2011-09-21 17:53:44 +02:00
machine_kexec.c
[MIPS] Unconditionally writeback and invalidate caches on kexec.
2007-08-27 02:16:59 +01:00
Makefile
mips: Use generic init_task
2012-05-05 13:00:24 +02:00
mcount.S
MIPS: tracing: Fix the indentation of mcount.S
2010-08-05 13:26:06 +01:00
mips_ksyms.c
MIPS: Refactor 'clear_page' and 'copy_page' functions.
2012-07-19 11:23:43 +02:00
mips_machine.c
MIPS: Add generic support for multiple machines within a single kernel
2011-01-18 19:30:21 +01:00
mips-mt-fpaff.c
remove references to cpu_*_map in arch/
2012-03-29 15:38:30 +10:30
mips-mt.c
Merge branch 'master' into for-next
2012-04-08 21:48:52 +02:00
module.c
MIPS: Module: Deal with malformed HI16/LO16 relocation sequences.
2012-08-17 10:57:28 +02:00
octeon_switch.S
MIPS: Fix race condition with FPU thread task flag during context switch.
2012-07-19 11:23:43 +02:00
perf_event_mipsxx.c
MIPS: Add CPU support for Loongson1B
2012-07-23 13:57:04 +01:00
perf_event.c
MIPS: perf: Reorganize contents of perf support files.
2011-10-24 23:34:26 +01:00
proc.c
MIPS: Code formatting fixes.
2012-05-15 17:48:39 +02:00
process.c
Disintegrate asm/system.h for MIPS
2012-03-28 18:30:02 +01:00
prom.c
MIPS: Prune some target specific code out of prom.c
2012-07-23 13:54:52 +01:00
ptrace32.c
Disintegrate asm/system.h for MIPS
2012-03-28 18:30:02 +01:00
ptrace.c
seccomp: ignore secure_computing return values
2012-04-18 12:24:50 +10:00
r4k_fpu.S
update David Miller's old email address
2011-04-06 06:19:38 -07:00
r4k_switch.S
MIPS: Fix race condition with FPU thread task flag during context switch.
2012-07-19 11:23:43 +02:00
r2300_fpu.S
update David Miller's old email address
2011-04-06 06:19:38 -07:00
r2300_switch.S
MIPS: Fix race condition with FPU thread task flag during context switch.
2012-07-19 11:23:43 +02:00
r6000_fpu.S
update David Miller's old email address
2011-04-06 06:19:38 -07:00
relocate_kernel.S
[MIPS] Kexec: Fix several 64-bit bugs.
2007-07-31 21:35:36 +01:00
reset.c
mips: migrate core kernel file from module.h --> export.h
2011-10-31 19:30:56 -04:00
rtlx.c
Disintegrate asm/system.h for MIPS
2012-03-28 18:30:02 +01:00
scall32-o32.S
MIPS: Hook up process_vm_readv and process_vm_writev system calls.
2011-11-09 00:07:56 +00:00
scall64-64.S
MIPS: Hook up process_vm_readv and process_vm_writev system calls.
2011-11-09 00:07:56 +00:00
scall64-n32.S
MIPS: Hook up process_vm_readv and process_vm_writev system calls.
2011-11-09 00:07:56 +00:00
scall64-o32.S
MIPS: Hook up process_vm_readv and process_vm_writev system calls.
2011-11-09 00:07:56 +00:00
setup.c
MIPS: Move cache setup to setup_arch().
2012-05-16 23:34:34 +02:00
signal32.c
most of set_current_blocked() callers want SIGKILL/SIGSTOP removed from set
2012-06-01 12:58:51 -04:00
signal_n32.c
most of set_current_blocked() callers want SIGKILL/SIGSTOP removed from set
2012-06-01 12:58:51 -04:00
signal-common.h
most of set_current_blocked() callers want SIGKILL/SIGSTOP removed from set
2012-06-01 12:58:51 -04:00
signal.c
new helper: signal_delivered()
2012-06-01 12:58:52 -04:00
smp-bmips.c
MIPS: BMIPS: delay irq enable to ->smp_finish()
2012-07-19 11:23:44 +02:00
smp-cmp.c
MIPS: CMP/SMTC: Fix tc_id calculation
2012-08-27 16:10:13 +02:00
smp-mt.c
Disintegrate asm/system.h for MIPS
2012-03-28 18:30:02 +01:00
smp-up.c
cpumask: arch_send_call_function_ipi_mask: mips
2009-09-24 09:34:45 +09:30
smp.c
MIPS: Synchronize MIPS count one CPU at a time
2012-08-17 10:57:28 +02:00
smtc-asm.S
[MIPS] SMTC: Don't set and restore irqregs ptr from self_ipi.
2007-06-11 18:20:53 +01:00
smtc-proc.c
Disintegrate asm/system.h for MIPS
2012-03-28 18:30:02 +01:00
smtc.c
MIPS: SMTC: Support for Multi-threaded FPUs
2012-07-23 13:55:53 +01:00
spinlock_test.c
mips: migrate core kernel file from module.h --> export.h
2011-10-31 19:30:56 -04:00
spram.c
Disintegrate asm/system.h for MIPS
2012-03-28 18:30:02 +01:00
stacktrace.c
mips: migrate core kernel file from module.h --> export.h
2011-10-31 19:30:56 -04:00
sync-r4k.c
MIPS: Synchronize MIPS count one CPU at a time
2012-08-17 10:57:28 +02:00
syscall.c
Disintegrate asm/system.h for MIPS
2012-03-28 18:30:02 +01:00
time.c
mips: migrate core kernel file from module.h --> export.h
2011-10-31 19:30:56 -04:00
topology.c
MIPS: Add arch generic CPU hotplug
2009-06-24 18:34:40 +01:00
traps.c
MIPS: Add CPU support for Loongson1B
2012-07-23 13:57:04 +01:00
unaligned.c
Disintegrate asm/system.h for MIPS
2012-03-28 18:30:02 +01:00
vdso.c
coredump: remove VM_ALWAYSDUMP flag
2012-03-23 16:58:42 -07:00
vmlinux.lds.S
MIPS: Properly align the .data..init_task section.
2012-07-19 11:23:43 +02:00
vpe.c
Disintegrate asm/system.h for MIPS
2012-03-28 18:30:02 +01:00
watch.c
MIPS: Add HARDWARE_WATCHPOINTS definitions and support code.
2008-10-11 16:18:56 +01:00