David Vrabel 77bb3dfdc0 xen/events: don't bind non-percpu VIRQs with percpu chip ... 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> Cc: <stable@vger.kernel.org>		2015-05-19 19:55:36 +01:00
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hvc_beat.c	serial: Kill off NO_IRQ	2012-01-26 17:14:50 -08:00
hvc_bfin_jtag.c	hvc: add Blackfin JTAG console support	2011-02-17 11:12:40 -08:00
hvc_console.c	TTY/Serial driver patches for 3.16-rc1	2014-06-03 09:01:02 -07:00
hvc_console.h	tty/hvc_console: Add DTR/RTS callback to handle HUPCL control	2013-07-24 15:21:13 -07:00
hvc_dcc.c	ARM: tty: Move HVC DCC assembly to arch/arm	2014-05-28 13:33:18 -07:00
hvc_irq.c	TTY: irq: Remove IRQF_DISABLED	2011-09-22 16:08:57 -07:00
hvc_iucv.c	s390/hvc_iucv: add simple wildcard matches to the iucv allow filter	2015-01-22 12:16:56 +01:00
hvc_opal.c	tty/hvc_opal: constify of_device_id array	2015-03-26 22:49:10 +01:00
hvc_rtas.c	drivers/tty/hvc: don't use module_init in non-modular hyp. console code	2014-02-07 08:40:54 -08:00
hvc_tile.c	tty: hvc: drop owner assignment from platform_drivers	2014-10-20 16:21:44 +02:00
hvc_udbg.c	drivers/tty/hvc: don't use module_init in non-modular hyp. console code	2014-02-07 08:40:54 -08:00
hvc_vio.c	powerpc: Remove powerpc specific cmd_line	2014-10-02 17:33:55 +10:00
hvc_xen.c	xen/events: don't bind non-percpu VIRQs with percpu chip	2015-05-19 19:55:36 +01:00
hvcs.c	tty: hvcs: Remove unnecessary KERN_ERR in hvcs.c	2014-11-05 19:24:07 -08:00
hvsi_lib.c	tty-hvsi_lib: Deletion of an unnecessary check before the function call "tty_kref_put"	2014-11-26 19:35:49 -08:00
hvsi.c	TTY: add tty_port_tty_wakeup helper	2013-03-18 16:19:45 -07:00
Kconfig	tty: Added a CONFIG_TTY option to allow removal of TTY	2013-01-18 16:15:27 -08:00
Makefile	tty: powerpc: remove hvc_iseries	2012-03-09 10:35:17 +11:00