 Home |
Products |
Support |
Community |
News |
xen-devel
[Xen-devel] [PATCH]x86-hpet: fix booting NULL pointer panic introduced b
| To: | "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] [PATCH]x86-hpet: fix booting NULL pointer panic introduced by c/s 21398 |
| From: | "Wei, Gang" <gang.wei@xxxxxxxxx> |
| Date: | Tue, 18 May 2010 18:29:51 +0800 |
| Accept-language: | zh-CN, en-US |
| Acceptlanguage: | zh-CN, en-US |
| Cc: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
| Delivery-date: | Tue, 18 May 2010 03:42:19 -0700 |
| Envelope-to: | www-data@xxxxxxxxxxxxxxxxxxx |
| List-help: | <mailto:xen-devel-request@lists.xensource.com?subject=help> |
| List-id: | Xen developer discussion <xen-devel.lists.xensource.com> |
| List-post: | <mailto:xen-devel@lists.xensource.com> |
| List-subscribe: | <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe> |
| List-unsubscribe: | <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe> |
| Sender: | xen-devel-bounces@xxxxxxxxxxxxxxxxxxx |
| Thread-index: | Acr2dQyXpjnjsMSMRiGqGI22139eCQ== |
| Thread-topic: | [PATCH]x86-hpet: fix booting NULL pointer panic introduced by c/s 21398 |
x86-hpet: fix booting NULL pointer panic introduced by c/s 21398.
(XEN) Xen call trace:
(XEN) [<ffff82c48011fb27>] check_lock+0x19/0x49
(XEN) [<ffff82c48011ff2a>] _spin_lock_irq+0x28/0x4a
(XEN) [<ffff82c48018fd6d>] hpet_broadcast_exit+0x92/0x1f0
(XEN) [<ffff82c4801920b2>] acpi_processor_idle+0x62c/0x6e6
(XEN) [<ffff82c48014e1a1>] idle_loop+0x62/0x73
Signed-off-by: Wei Gang <gang.wei@xxxxxxxxx>
diff -r e4028345ad48 xen/arch/x86/hpet.c
--- a/xen/arch/x86/hpet.c Mon May 17 18:52:01 2010 +0100
+++ b/xen/arch/x86/hpet.c Wed May 19 02:16:41 2010 +0800
@@ -684,6 +684,9 @@ void hpet_broadcast_exit(void)
if ( this_cpu(timer_deadline_start) == 0 )
return;
+ if ( !ch )
+ ch = hpet_get_channel(cpu);
+
/* Reprogram the deadline; trigger timer work now if it has passed. */
enable_APIC_timer();
if ( !reprogram_timer(this_cpu(timer_deadline_start)) )
_______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
| <Prev in Thread] | Current Thread | [Next in Thread> |
|---|---|---|
| ||
| Previous by Date: | [Xen-devel] [PATCH] xen: implement vector callback for evtchn delivery, Stefano Stabellini |
|---|---|
| Next by Date: | [Xen-devel] Re: [PATCH 0 of 12] PV on HVM Xen, Christian Tramnitz |
| Previous by Thread: | [Xen-devel] [PATCH 0 of 12] PV on HVM Xen, Stefano Stabellini |
| Next by Thread: | [Xen-devel] How to build a 64 bit xen, lei yang |
| Indexes: | [Date] [Thread] [Top] [All Lists] |
