David Vrabel 8d3cbb9096 xen/events: don't bind non-percpu VIRQs with percpu chip ... commit 77bb3dfdc0 upstream. A non-percpu VIRQ (e.g., VIRQ_CONSOLE) may be freed on a different VCPU than it is bound to. This can result in a race between handle_percpu_irq() and removing the action in __free_irq() because handle_percpu_irq() does not take desc->lock. The interrupt handler sees a NULL action and oopses. Only use the percpu chip/handler for per-CPU VIRQs (like VIRQ_TIMER). # cat /proc/interrupts | grep virq 40: 87246 0 xen-percpu-virq timer0 44: 0 0 xen-percpu-virq debug0 47: 0 20995 xen-percpu-virq timer1 51: 0 0 xen-percpu-virq debug1 69: 0 0 xen-dyn-virq xen-pcpu 74: 0 0 xen-dyn-virq mce 75: 29 0 xen-dyn-virq hvc_console Signed-off-by: David Vrabel <david.vrabel@citrix.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2015-06-06 08:19:32 -07:00
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acpi	ACPICA: Tables: Change acpi_find_root_pointer() to use acpi_physical_address.	2015-05-17 09:53:51 -07:00
asm-generic	nosave: consolidate __nosave_{begin,end} in <asm/sections.h>	2015-05-06 21:59:21 +02:00
clocksource	…
crypto	…
drm	drm/radeon: remove invalid pci id	2014-11-14 09:00:12 -08:00
dt-bindings	pinctrl: dra: dt-bindings: Fix output pull up/down	2014-11-21 09:23:02 -08:00
keys	…
kvm	ARM: KVM: fix non-VGIC compilation	2014-03-06 09:47:42 +01:00
linux	nilfs2: fix sanity check of btree level in nilfs_btree_root_broken()	2015-05-17 09:53:49 -07:00
math-emu	…
media	media: vb2: fix VBI/poll regression	2014-10-09 12:21:27 -07:00
memory	…
misc	…
net	ipv6: protect skb->sk accesses from recursive dereference inside the stack	2015-04-29 10:31:46 +02:00
pcmcia	…
ras	…
rdma	IB/core: Don't resolve passive side RoCE L2 address in CMA REQ handler	2014-05-06 07:59:28 -07:00
rxrpc	…
scsi	scsi: do not issue SCSI RSOC command to Promise Vtrak E610f	2014-09-17 09:19:14 -07:00
sound	ASoC: dapm: Enable autodisable on SOC_DAPM_SINGLE_TLV_AUTODISABLE	2015-05-13 05:16:56 -07:00
target	target: Fix COMPARE_AND_WRITE with SG_TO_MEM_NOALLOC handling	2015-05-06 21:59:17 +02:00
trace	mm: when stealing freepages, also take pages created by splitting buddy page	2015-03-18 13:31:23 +01:00
uapi	in6: fix conflict with glibc	2015-01-27 08:18:53 -08:00
video	…
xen	xen/events: don't bind non-percpu VIRQs with percpu chip	2015-06-06 08:19:32 -07:00
Kbuild	…