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linux/arch/arm/kernel
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Sebastian Andrzej Siewior 74ffe79ae5 ARM: 8840/1: use a raw_spinlock_t in unwind 
Mostly unwind is done with irqs enabled however SLUB may call it with
irqs disabled while creating a new SLUB cache.

I had system freeze while loading a module which called
kmem_cache_create() on init. That means SLUB's __slab_alloc() disabled
interrupts and then

->new_slab_objects()
 ->new_slab()
  ->setup_object()
   ->setup_object_debug()
    ->init_tracking()
     ->set_track()
      ->save_stack_trace()
       ->save_stack_trace_tsk()
        ->walk_stackframe()
         ->unwind_frame()
          ->unwind_find_idx()
           =>spin_lock_irqsave(&unwind_lock);

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2019-02-26 11:24:51 +00:00
..
.gitignore
…
arch_timer.c
…
armksyms.c
ARM: 8788/1: ftrace: remove old mcount support
2018-09-19 10:44:50 +01:00
asm-offsets.c
ARM: smp: add support for per-task stack canaries
2018-12-12 13:20:07 -08:00
atags_compat.c
…
atags_parse.c
vfs: Suppress MS_* flag defs within the kernel unless explicitly enabled
2018-12-20 16:32:56 +00:00
atags_proc.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
atags.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
bios32.c
PCI: Remove PCI_REASSIGN_ALL_RSRC use on arm and arm64
2017-12-18 23:07:43 -06:00
bugs.c
ARM: clean up per-processor check_bugs method call
2018-11-12 10:51:01 +00:00
cpuidle.c
ARM: Convert to using %pOF instead of full_name
2017-08-16 22:25:30 +02:00
crash_dump.c
…
debug.S
Merge branches 'fixes', 'misc' and 'sa1111-for-next' into for-next
2017-11-08 19:42:43 +00:00
devtree.c
mm: remove include/linux/bootmem.h
2018-10-31 08:54:16 -07:00
dma-isa.c
…
dma.c
proc: introduce proc_create_single{,_data}
2018-05-16 07:23:35 +02:00
early_printk.c
ARM: 8705/1: early_printk: use printascii() rather than printch()
2017-10-12 11:29:29 +01:00
efi.c
ARM/efi: Apply strict permissions for UEFI Runtime Services regions
2016-04-28 11:33:53 +02:00
elf.c
Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
2017-11-16 12:50:35 -08:00
entry-armv.S
ARM: Convert to GENERIC_IRQ_MULTI_HANDLER
2018-08-03 12:14:08 +02:00
entry-common.S
ARM: 8802/1: Call syscall_trace_exit even when system call skipped
2018-10-10 13:53:12 +01:00
entry-ftrace.S
ARM: 8788/1: ftrace: remove old mcount support
2018-09-19 10:44:50 +01:00
entry-header.S
ARM: spectre-v1: fix syscall entry
2018-05-31 23:27:26 +01:00
entry-v7m.S
ARM: rename S_FRAME_SIZE to PT_REGS_SIZE
2016-06-22 19:54:28 +01:00
fiq.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
fiqasm.S
…
ftrace.c
ARM: function_graph: Simplify with function_graph_enter()
2018-11-27 20:29:52 -05:00
head-common.S
ARM: make lookup_processor_type() non-__init
2018-11-12 10:51:01 +00:00
head-inflate-data.c
ARM: XIP kernel: store .data compressed in ROM
2017-09-10 19:34:53 -04:00
head-nommu.S
Merge branches 'fixes', 'misc' and 'spectre' into for-linus
2018-08-13 16:28:50 +01:00
head.S
ARM: 8811/1: always list both ldrd/strd registers explicitly
2018-11-12 10:51:54 +00:00
hibernate.c
ARM: use virt_to_idmap() for soft_restart()
2016-02-08 15:48:32 +00:00
hw_breakpoint.c
perf/arch/arm: Implement hw_breakpoint_arch_parse()
2018-06-26 09:07:56 +02:00
hyp-stub.S
ARM: align .data section
2017-08-14 16:22:55 +01:00
insn.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
io.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
irq.c
ARM: 8824/1: fix a migrating irq bug when hotplug cpu
2019-02-01 21:54:49 +00:00
isa.c
…
iwmmxt.S
ARM: align .data section
2017-08-14 16:22:55 +01:00
jump_label.c
jump_label: move 'asm goto' support test to Kconfig
2019-01-06 09:46:51 +09:00
kgdb.c
kgdb/treewide: constify struct kgdb_arch arch_kgdb_ops
2018-12-30 08:33:06 +00:00
machine_kexec.c
ARM: kexec: record parent context registers for non-crash CPUs
2018-05-19 11:35:56 +01:00
Makefile
ARM: bugs: prepare processor bug infrastructure
2018-05-31 10:39:18 +01:00
module-plts.c
ARM: 8662/1: module: split core and init PLT sections
2017-03-17 10:01:28 +00:00
module.c
ARM: Silence first allocation with CONFIG_ARM_MODULE_PLTS=y
2017-05-11 14:43:31 +01:00
module.lds
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
opcodes.c
…
paravirt.c
x86/paravirt: Use a single ops structure
2018-09-03 16:50:35 +02:00
patch.c
ARM: 8839/1: kprobe: make patch_lock a raw_spinlock_t
2019-02-26 11:24:50 +00:00
perf_callchain.c
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
perf_event_v6.c
arm_pmu: Tidy up clear_event_idx call backs
2018-07-10 18:19:02 +01:00
perf_event_v7.c
arm_pmu: Tidy up clear_event_idx call backs
2018-07-10 18:19:02 +01:00
perf_event_xscale.c
arm_pmu: Tidy up clear_event_idx call backs
2018-07-10 18:19:02 +01:00
perf_regs.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
pj4-cp0.c
ARM: 8452/3: PJ4: make coprocessor access sequences buildable in Thumb2 mode
2016-01-04 11:12:10 +00:00
process.c
ARM: smp: add support for per-task stack canaries
2018-12-12 13:20:07 -08:00
psci_smp.c
ARM: use const and __initconst for smp_operations
2015-12-01 22:17:45 +01:00
ptrace.c
signal/arm: Use force_sig_fault where appropriate
2018-09-27 21:57:39 +02:00
reboot.c
ARM: soft-reboot into same mode that we entered the kernel
2017-04-09 07:49:24 -07:00
reboot.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
relocate_kernel.S
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
return_address.c
…
setup.c
Merge branches 'misc', 'sa1100-for-next' and 'spectre' into for-linus
2019-01-02 10:37:05 +00:00
signal.c
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
signal.h
ARM: signal handling support for FDPIC_FUNCPTRS functions
2017-09-10 19:31:46 -04:00
sigreturn_codes.S
ARM: signal handling support for FDPIC_FUNCPTRS functions
2017-09-10 19:31:46 -04:00
sleep.S
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
smccc-call.S
arm: kernel: Add SMC structure parameter
2017-02-03 18:46:33 +00:00
smp_scu.c
ARM: smp_scu: allow the platform code to read the SCU CPU status
2017-10-29 08:29:30 -07:00
smp_tlb.c
ARM: 8613/1: Fix the uaccess crash on PB11MPCore
2017-01-16 17:30:46 +00:00
smp_twd.c
clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE
2017-06-14 11:58:45 +02:00
smp.c
ARM: 8824/1: fix a migrating irq bug when hotplug cpu
2019-02-01 21:54:49 +00:00
stacktrace.c
ARM: probes: avoid adding kprobes to sensitive kernel-entry/exit code
2017-12-17 22:14:21 +00:00
suspend.c
ARM: bugs: hook processor bug checking into SMP and suspend paths
2018-05-31 10:39:29 +01:00
swp_emulate.c
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
sys_arm.c
mm: add ksys_fadvise64_64() helper; remove in-kernel call to sys_fadvise64_64()
2018-04-02 20:16:10 +02:00
sys_oabi-compat.c
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
tcm.c
ARM: 8388/1: tcm: Don't crash when TCM banks are protected by TrustZone
2015-06-06 10:37:28 +01:00
thumbee.c
…
time.c
ARM/time: Remove read_boot_clock64()
2018-07-20 00:02:41 +02:00
topology.c
ARM: topology: remove unneeded check for /cpus node
2018-09-28 14:25:58 -05:00
traps.c
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
unwind.c
ARM: 8840/1: use a raw_spinlock_t in unwind
2019-02-26 11:24:51 +00:00
v7m.c
…
vdso.c
ARM: 8748/1: mm: Define vdso_start, vdso_end as array
2018-03-24 14:27:49 +00:00
vmlinux-xip.lds.S
vmlinux.lds.h: Move LSM_TABLE into INIT_DATA
2018-10-10 20:40:21 -07:00
vmlinux.lds.h
vmlinux.lds.h: Fix incomplete .text.exit discards
2018-10-12 08:54:58 +11:00
vmlinux.lds.S
ARM: 8757/1: NOMMU: Support PMSAv8 MPU
2018-05-19 11:53:46 +01:00
xscale-cp0.c
ARM: make xscale iwmmxt code multiplatform aware
2015-12-01 21:44:24 +01:00