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5df9d11be4
linux_dsm_epyc7002/arch/mips/kernel
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Kevin D. Kissell 5df9d11be4 MIPS: SMTC: Fix lockup in smtc_distribute_timer 
1. At the end of smtc_distribute_timer, nextstamp is valid and has already
   passed so we goto repeat.
2. Nothing updates nextstamp (only updated if the timeout is in the future
   And we just decided it is in the past)
3. At the end nextstamp still has the same value so it is still valid and
   in the past.
4. This repeats until read_c0_count has a value which causes nextstamp to
   be in the future.

Reported and initial patch and testing  by Mikael Starvik
<mikael.starvik@axis.com>.

Signed-off-by: Kevin D. Kissell <kevink@paralogos.com>
Cc: Mikael Starvik <mikael.starvik@axis.com>
Cc: linux-mips@linux-mips.org
Cc: Jesper Nilsson <Jesper.Nilsson@axis.com>
Patchwork: http://patchwork.linux-mips.org/patch/621/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-11-13 18:10:38 +01:00
..
.gitignore [MIPS] Ignore vmlinux.lds generated files 2008-08-26 09:10:27 +01:00
8250-platform.c [MIPS] Put an end to <asm/serial.h>'s long and annyoing existence 2007-07-10 17:33:01 +01:00
asm-offsets.c MIPS: Use PAGE_SIZE in assembly instead of _PAGE_SIZE. 2009-09-17 20:07:48 +02:00
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
branch.c MIPS: Compute branch returns for Cavium OCTEON specific branch instructions. 2009-01-11 09:57:24 +00:00
cevt-bcm1480.c MIPS: Add IRQF_TIMER flag for timer interrupts 2009-11-02 12:00:02 +01:00
cevt-ds1287.c MIPS: Add IRQF_TIMER flag for timer interrupts 2009-11-02 12:00:02 +01:00
cevt-gt641xx.c MIPS: Add IRQF_TIMER flag for timer interrupts 2009-11-02 12:00:02 +01:00
cevt-r4k.c MIPS: Add IRQF_TIMER flag for timer interrupts 2009-11-02 12:00:02 +01:00
cevt-sb1250.c MIPS: Add IRQF_TIMER flag for timer interrupts 2009-11-02 12:00:02 +01:00
cevt-smtc.c MIPS: SMTC: Fix lockup in smtc_distribute_timer 2009-11-13 18:10:38 +01:00
cevt-txx9.c MIPS: Add IRQF_TIMER flag for timer interrupts 2009-11-02 12:00:02 +01:00
cpu-bugs64.c MIPS: Remove useless zero initializations. 2009-09-17 20:07:51 +02:00
cpu-probe.c MIPS: SPRAM: Clean up support code a little 2009-11-02 12:00:05 +01:00
csrc-bcm1480.c clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
csrc-ioasic.c Update Yoichi Yuasa's e-mail address 2009-07-03 15:45:29 +01:00
csrc-r4k.c clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
csrc-sb1250.c clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
early_printk.c [MIPS] fix sparse warning about setup_early_printk() 2008-07-15 18:44:29 +01:00
entry.S [MIPS] SMTC: Close tiny holes in the SMTC IPI replay system. 2008-10-03 17:58:58 +01:00
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: Add IRQF_TIMER flag for timer interrupts 2009-11-02 12:00:02 +01:00
i8259.c cpumask: remove references to struct irqaction's mask field. 2009-03-30 22:05:14 +10:30
init_task.c Use new __init_task_data macro in arch init_task.c files. 2009-09-21 06:27:08 +02:00
irq_cpu.c MIPS: Enable GENERIC_HARDIRQS_NO__DO_IRQ for all platforms 2009-03-30 14:49:44 +02:00
irq_txx9.c MIPS: Eleminate filenames from comments 2009-08-03 17:52:40 +01:00
irq-gic.c MIPS: GIC: Random fixes and enhancements. 2009-11-02 12:00:06 +01:00
irq-gt641xx.c Update Yoichi Yuasa's e-mail address 2009-07-03 15:45:29 +01:00
irq-msc01.c MIPS: Enable GENERIC_HARDIRQS_NO__DO_IRQ for all platforms 2009-03-30 14:49:44 +02:00
irq-rm7000.c [MIPS] Fix broken rm7000/rm9000 interrupt handling 2008-02-19 17:01:31 +00:00
irq-rm9000.c on_each_cpu(): kill unused 'retry' parameter 2008-06-26 11:24:38 +02:00
irq.c Merge branches 'irq/genirq' and 'linus' into irq/core 2009-03-16 09:20:13 +01:00
kgdb.c MIPS: Build fix - include <linux/smp.h> into all smp_processor_id() users. 2009-06-24 18:34:39 +01:00
kspd.c MIPS: VPE: Fix build after the credential changes a while ago. 2009-09-30 21:47:02 +02:00
linux32.c MIPS: 64-bit: Fix o32 lookup_dcookie syscall 2009-11-02 12:00:02 +01:00
machine_kexec.c [MIPS] Unconditionally writeback and invalidate caches on kexec. 2007-08-27 02:16:59 +01:00
Makefile mips: fix build of vmlinux.lds 2009-09-25 19:49:27 +02:00
mips_ksyms.c [MIPS] Export __copy_user_inatomic. 2007-03-07 00:07:17 +00:00
mips-mt-fpaff.c MIPS: Remove useless zero initializations. 2009-09-17 20:07:51 +02:00
mips-mt.c MIPS: Remove useless zero initializations. 2009-09-17 20:07:51 +02:00
module.c MIPS: Module: Make error messages unique. 2009-08-03 17:52:48 +01:00
octeon_switch.S MIPS: Consolidate all CONFIG_CPU_HAS_LLSC use in a single C file. 2009-09-17 20:07:49 +02:00
proc.c MIPS: Eleminate filenames from comments 2009-08-03 17:52:40 +01:00
process.c MIPS: Avoid clobbering struct pt_regs in kthreads 2009-08-03 17:52:41 +01:00
ptrace32.c headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
ptrace.c MIPS: Ptrace support for HARDWARE_WATCHPOINTS 2008-10-11 16:18:57 +01:00
r4k_fpu.S [MIPS] Check FCSR for pending interrupts, alternative version 2007-03-17 01:03:25 +00:00
r4k_switch.S MIPS: Consolidate all CONFIG_CPU_HAS_LLSC use in a single C file. 2009-09-17 20:07:49 +02:00
r2300_fpu.S kbuild: mips use generic asm-offsets.h support 2005-09-09 22:32:31 +02:00
r2300_switch.S MIPS: Consolidate all CONFIG_CPU_HAS_LLSC use in a single C file. 2009-09-17 20:07:49 +02:00
r6000_fpu.S kbuild: mips use generic asm-offsets.h support 2005-09-09 22:32:31 +02:00
relocate_kernel.S [MIPS] Kexec: Fix several 64-bit bugs. 2007-07-31 21:35:36 +01:00
reset.c [MIPS] Export pm_power_off 2006-12-10 21:52:11 +00:00
rtlx.c MIPS: VPE: Get rid of BKL. 2009-09-30 21:47:02 +02:00
scall32-o32.S perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
scall64-64.S perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
scall64-n32.S perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
scall64-o32.S MIPS: O32: Fix ppoll 2009-11-02 12:00:08 +01:00
setup.c MIPS: Remove useless zero initializations. 2009-09-17 20:07:51 +02:00
signal32.c MIPS: CVE-2009-0029: Enable syscall wrappers. 2009-02-27 17:56:35 +00:00
signal_n32.c [MIPS] Fix "no space between function name and open parenthesis" warnings. 2007-10-11 23:46:15 +01:00
signal-common.h [MIPS] replace remaining __FUNCTION__ occurrences 2008-04-28 17:14:27 +01:00
signal.c KEYS: Add missing linux/tracehook.h #inclusions 2009-09-09 18:30:02 +10:00
smp-cmp.c cpumask: Use accessors for cpu_*_mask: mips 2009-09-24 09:34:48 +09:30
smp-mt.c cpumask: Use accessors for cpu_*_mask: mips 2009-09-24 09:34:48 +09:30
smp-up.c cpumask: arch_send_call_function_ipi_mask: mips 2009-09-24 09:34:45 +09:30
smp.c MIPS: SMP: Inline arch_send_call_function_{single_ipi,ipi_mask} 2009-09-30 21:47:00 +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 [MIPS] SMP: Call platform methods via ops structure. 2008-01-29 10:14:57 +00:00
smtc.c MIPS: SMTC: Avoid queing multiple reschedule IPIs 2009-11-02 12:00:06 +01:00
spram.c MIPS: SPRAM: Clean up support code a little 2009-11-02 12:00:05 +01:00
stacktrace.c MIPS: Eleminate filenames from comments 2009-08-03 17:52:40 +01:00
sync-r4k.c MIPS: CMP: Update sync-r4k for current kernel 2009-07-03 15:45:27 +01:00
syscall.c MIPS: Rewrite sysmips(MIPS_ATOMIC_SET, ...) in C with inline assembler 2009-09-17 20:07:49 +02:00
time.c [MIPS] unexport null_perf_irq() and make it static 2008-04-28 17:14:31 +01:00
topology.c MIPS: Add arch generic CPU hotplug 2009-06-24 18:34:40 +01:00
traps.c MIPS: Rewrite sysmips(MIPS_ATOMIC_SET, ...) in C with inline assembler 2009-09-17 20:07:49 +02:00
unaligned.c MIPS: Use force_sig when handling address errors. 2009-05-14 13:50:29 +01:00
vmlinux.lds.S mips: fix build of vmlinux.lds 2009-09-25 19:49:27 +02:00
vpe.c MIPS: VPE: Remove stray unlock_kernel. 2009-11-02 12:00:02 +01:00
watch.c MIPS: Add HARDWARE_WATCHPOINTS definitions and support code. 2008-10-11 16:18:56 +01:00