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linux-stable/arch/ia64/kernel
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Alex Williamson 451fe00cf7 [IA64] Clear IRQ affinity when unregistered 
When we offline a CPU, migrate_irqs() tries to determine whether the
affinity bits of the IRQ descriptor match any of the remaining online
CPUs.  If not, it fixes up the interrupt to point somewhere else.
Unfortunately, if an IRQ is unregistered the IRQ descriptor may still
have affinity to the CPU being offlined, but the no_irq_chip handler
doesn't provide a set_affinity function.  This causes us to hit the
WARN_ON in migrate_irqs().

The easiest solution seems to be setting all the bits in the affinity
mask when the last interrupt is removed from the vector.  I hit this on
an older kernel with Xen/ia64 using driver domains (so it probably needs
more testing on upstream).  Xen essentially uses the bind/unbind
interface in sysfs to unregister a device from a driver and thus
unregister the interrupt.

Signed-off-by: Alex Williamson <alex.williamson@hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05 14:09:51 -08:00
..
cpufreq ACPI: replace kmalloc+memset with kzalloc 2006-12-20 16:54:54 -05:00
acpi-ext.c Pull acpi_os_free into release branch 2006-07-01 17:19:08 -04:00
acpi-processor.c fix file specification in comments 2006-10-03 23:01:26 +02:00
acpi.c [PATCH] Altix: more ACPI PRT support 2007-02-03 11:26:06 -08:00
asm-offsets.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
audit.c [PATCH] audit: AUDIT_PERM support 2006-09-11 13:32:30 -04:00
brl_emu.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
crash.c [IA64] Fix NULL-pointer dereference in ia64_machine_kexec() 2007-02-05 14:06:44 -08:00
crash_dump.c [IA64] kexec: Minor enhancement to includes in crash.c 2007-02-05 11:31:04 -08:00
cyclone.c [IA64] don't report !sn2 or !summit hardware as an error 2006-03-07 15:26:49 -08:00
efi.c [IA64] add newline to PAL-code warning message 2007-02-05 11:32:59 -08:00
efi_stub.S [IA64] make efi_stub.S fit in 80 cols 2006-06-21 14:35:28 -07:00
entry.h Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
entry.S [IA64] IA64 Kexec/kdump 2006-12-07 09:51:35 -08:00
esi.c [IA64] esi-support 2006-06-21 11:19:22 -07:00
esi_stub.S [IA64] esi-support 2006-06-21 11:19:22 -07:00
fsys.S [IA64] cleanup in fsys.S 2006-02-28 08:53:32 -08:00
gate-data.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
gate.lds.S [PATCH] vDSO hash-style fix 2006-07-31 13:28:43 -07:00
gate.S Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
head.S [IA64] Save register stack contents on cpu start 2006-09-08 11:05:13 -07:00
ia64_ksyms.c [IA64] Need export for csum_ipv6_magic 2006-12-07 13:18:57 -08:00
init_task.c [PATCH] nsproxy: move init_nsproxy into kernel/nsproxy.c 2006-10-02 07:57:20 -07:00
iosapic.c [IA64] Clear IRQ affinity when unregistered 2007-02-05 14:09:51 -08:00
irq.c [PATCH] kexec: Avoid migration of already disabled irqs (ia64) 2007-02-03 11:26:06 -08:00
irq_ia64.c [IA64] use generic_handle_irq() 2006-11-16 09:38:35 -08:00
irq_lsapic.c [IA64] typename -> name conversion 2006-11-16 09:38:02 -08:00
ivt.S Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
jprobes.S [IA64] enable trap code on slot 1 2006-12-12 12:00:55 -08:00
kprobes.c [IA64] kprobe clears qp bits for special instructions 2006-12-12 12:04:42 -08:00
machine_kexec.c [IA64] Fix NULL-pointer dereference in ia64_machine_kexec() 2007-02-05 14:06:44 -08:00
machvec.c IRQ: Maintain regs pointer globally rather than passing to IRQ handlers 2006-10-05 15:10:12 +01:00
Makefile [IA64] CONFIG_KEXEC/CONFIG_CRASH_DUMP permutations 2006-12-12 10:11:00 -08:00
mca.c [IA64] CONFIG_KEXEC/CONFIG_CRASH_DUMP permutations 2006-12-12 10:11:00 -08:00
mca_asm.S [IA64] ar.fpsr not set on MCA/INIT kernel entry 2006-09-26 15:20:35 -07:00
mca_drv.c [IA64] MCA recovery: Montecito support 2006-10-31 14:30:34 -08:00
mca_drv.h [IA64] printing support for MCA/INIT 2006-09-26 14:44:37 -07:00
mca_drv_asm.S Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
minstate.h Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
module.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
msi_ia64.c [PATCH] msi: move the ia64 code into arch/ia64 2006-10-04 07:55:29 -07:00
numa.c [PATCH] cpumask: export node_to_cpu_mask consistently 2006-10-02 07:57:17 -07:00
pal.S [IA64] reformat pal.S to fit in 80 columns, fix typos 2006-10-17 14:54:19 -07:00
palinfo.c Merge branch 'release' of master.kernel.org:/pub/scm/linux/kernel/git/aegl/linux-2.6 2006-12-07 15:39:22 -08:00
patch.c [IA64] add init declaration - gate page functions 2006-03-22 16:54:38 -08:00
perfmon.c [PATCH] struct path: convert ia64 2006-12-08 08:28:45 -08:00
perfmon_default_smpl.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
perfmon_generic.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
perfmon_itanium.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
perfmon_mckinley.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
perfmon_montecito.h [IA64] sparse cleanups 2006-12-07 10:48:19 -08:00
process.c [IA64] kexec: Move machine_shutdown from machine_kexec.c to process.c 2007-02-05 13:49:10 -08:00
ptrace.c [IA64] find thread for user rbs address 2007-02-05 14:04:21 -08:00
relocate_kernel.S [IA64] IA64 Kexec/kdump 2006-12-07 09:51:35 -08:00
sal.c [IA64] move SAL_CACHE_FLUSH check later in boot 2006-10-31 14:32:10 -08:00
salinfo.c [PATCH] struct path: convert ia64 2006-12-08 08:28:45 -08:00
semaphore.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
setup.c [IA64] use snprintf() on features field of /proc/cpuinfo 2007-02-05 13:54:31 -08:00
sigframe.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
signal.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
smp.c [IA64] CONFIG_KEXEC/CONFIG_CRASH_DUMP permutations 2006-12-12 10:11:00 -08:00
smpboot.c WorkQueue: Fix up arch-specific work items where possible 2006-12-05 19:36:26 +00:00
sys_ia64.c [PATCH] IA64,sparc: local DoS with corrupted ELFs 2006-09-08 08:40:46 -07:00
time.c [IA64] - Allow IPIs in timer loop 2006-10-17 14:51:49 -07:00
topology.c [PATCH] i386: change the 'no_control' field to 'hotpluggable' in the struct cpu 2006-12-07 02:14:10 +01:00
traps.c [IA64] - Reduce overhead of FP exception logging messages 2006-12-12 11:47:09 -08:00
unaligned.c [IA64] sysctl option to silence unaligned trap warnings 2006-02-28 09:42:23 -08:00
uncached.c [PATCH] Define easier to handle GFP_THISNODE 2006-09-26 08:48:50 -07:00
unwind.c [IA64] MCA/INIT: remove obsolete unwind code 2005-09-11 14:09:34 -07:00
unwind_decoder.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
unwind_i.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
vmlinux.lds.S [PATCH] vmlinux.lds: consolidate initcall sections 2006-10-27 15:34:51 -07:00