subject:"\[Qemu\-devel\] \[PATCH v8 5\/6\] introduce a new qom device to deal with panicked event"

Re: [Qemu-devel] [PATCH v8 5/6] introduce a new qom device to deal with panicked event

2012-08-25 Thread Blue Swirl

On Wed, Aug 22, 2012 at 7:30 AM, Wen Congyang we...@cn.fujitsu.com wrote:
 At 08/09/2012 03:01 AM, Blue Swirl Wrote:
 On Wed, Aug 8, 2012 at 2:47 AM, Wen Congyang we...@cn.fujitsu.com wrote:
 If the target is x86/x86_64, the guest's kernel will write 0x01 to the
 port KVM_PV_EVENT_PORT when it is panciked. This patch introduces a new
 qom device kvm_pv_ioport to listen this I/O port, and deal with panicked
 event according to panicked_action's value. The possible actions are:
 1. emit QEVENT_GUEST_PANICKED only
 2. emit QEVENT_GUEST_PANICKED and pause the guest
 3. emit QEVENT_GUEST_PANICKED and poweroff the guest
 4. emit QEVENT_GUEST_PANICKED and reset the guest

 I/O ports does not work for some targets(for example: s390). And you
 can implement another qom device, and include it's code into pv_event.c
 for such target.

 Note: if we emit QEVENT_GUEST_PANICKED only, and the management
 application does not receive this event(the management may not
 run when the event is emitted), the management won't know the
 guest is panicked.

 Signed-off-by: Wen Congyang we...@cn.fujitsu.com
 ---
  hw/kvm/Makefile.objs |2 +-
  hw/kvm/pv_event.c|  109 
 ++
  hw/kvm/pv_ioport.c   |   93 ++
  hw/pc_piix.c |9 
  kvm.h|2 +
  5 files changed, 214 insertions(+), 1 deletions(-)
  create mode 100644 hw/kvm/pv_event.c
  create mode 100644 hw/kvm/pv_ioport.c

 diff --git a/hw/kvm/Makefile.objs b/hw/kvm/Makefile.objs
 index 226497a..23e3b30 100644
 --- a/hw/kvm/Makefile.objs
 +++ b/hw/kvm/Makefile.objs
 @@ -1 +1 @@
 -obj-$(CONFIG_KVM) += clock.o apic.o i8259.o ioapic.o i8254.o
 +obj-$(CONFIG_KVM) += clock.o apic.o i8259.o ioapic.o i8254.o pv_event.o
 diff --git a/hw/kvm/pv_event.c b/hw/kvm/pv_event.c
 new file mode 100644
 index 000..8897237
 --- /dev/null
 +++ b/hw/kvm/pv_event.c
 @@ -0,0 +1,109 @@
 +/*
 + * QEMU KVM support, paravirtual event device
 + *
 + * Copyright Fujitsu, Corp. 2012
 + *
 + * Authors:
 + * Wen Congyang we...@cn.fujitsu.com
 + *
 + * This work is licensed under the terms of the GNU GPL, version 2 or 
 later.
 + * See the COPYING file in the top-level directory.
 + *
 + */
 +
 +#include linux/kvm_para.h
 +#include asm/kvm_para.h
 +#include qobject.h
 +#include qjson.h
 +#include monitor.h
 +#include sysemu.h
 +#include kvm.h
 +
 +/* Possible values for action parameter. */
 +#define PANICKED_REPORT 1   /* emit QEVENT_GUEST_PANICKED only */
 +#define PANICKED_PAUSE  2   /* emit QEVENT_GUEST_PANICKED and pause VM 
 */
 +#define PANICKED_POWEROFF   3   /* emit QEVENT_GUEST_PANICKED and quit VM 
 */
 +#define PANICKED_RESET  4   /* emit QEVENT_GUEST_PANICKED and reset VM 
 */
 +
 +#define PV_EVENT_DRIVER kvm_pv_event
 +
 +struct pv_event_action {

 PVEventAction

 +char *panicked_action;
 +int panicked_action_value;
 +};
 +
 +#define DEFINE_PV_EVENT_PROPERTIES(_state, _conf)   \
 +DEFINE_PROP_STRING(panicked_action, _state, _conf.panicked_action)
 +
 +static void panicked_mon_event(const char *action)
 +{
 +QObject *data;
 +
 +data = qobject_from_jsonf({ 'action': %s }, action);
 +monitor_protocol_event(QEVENT_GUEST_PANICKED, data);
 +qobject_decref(data);
 +}
 +
 +static void panicked_perform_action(uint32_t panicked_action)
 +{
 +switch (panicked_action) {
 +case PANICKED_REPORT:
 +panicked_mon_event(report);
 +break;
 +
 +case PANICKED_PAUSE:
 +panicked_mon_event(pause);
 +vm_stop(RUN_STATE_GUEST_PANICKED);
 +break;
 +
 +case PANICKED_POWEROFF:
 +panicked_mon_event(poweroff);
 +qemu_system_shutdown_request();
 +break;

 Misses a line break unlike other cases.

 +case PANICKED_RESET:
 +panicked_mon_event(reset);
 +qemu_system_reset_request();
 +break;
 +}
 +}
 +
 +static uint64_t supported_event(void)
 +{
 +return 1  KVM_PV_FEATURE_PANICKED;
 +}
 +
 +static void handle_event(int event, struct pv_event_action *conf)
 +{
 +if (event == KVM_PV_EVENT_PANICKED) {
 +panicked_perform_action(conf-panicked_action_value);
 +}
 +}
 +
 +static int pv_event_init(struct pv_event_action *conf)
 +{
 +if (!conf-panicked_action) {
 +conf-panicked_action_value = PANICKED_REPORT;
 +} else if (strcasecmp(conf-panicked_action, none) == 0) {
 +conf-panicked_action_value = PANICKED_REPORT;
 +} else if (strcasecmp(conf-panicked_action, pause) == 0) {
 +conf-panicked_action_value = PANICKED_PAUSE;
 +} else if (strcasecmp(conf-panicked_action, poweroff) == 0) {
 +conf-panicked_action_value = PANICKED_POWEROFF;
 +} else if (strcasecmp(conf-panicked_action, reset) == 0) {
 +conf-panicked_action_value = PANICKED_RESET;
 +} else {
 +return -1;
 +}
 +
 +return 0;
 +}
 +
 +#if defined(KVM_PV_EVENT_PORT)
 +
 +#include pv_ioport.c

 I'd rather not

Re: [Qemu-devel] [PATCH v8 5/6] introduce a new qom device to deal with panicked event

2012-08-22 Thread Wen Congyang

At 08/09/2012 03:01 AM, Blue Swirl Wrote:
 On Wed, Aug 8, 2012 at 2:47 AM, Wen Congyang we...@cn.fujitsu.com wrote:
 If the target is x86/x86_64, the guest's kernel will write 0x01 to the
 port KVM_PV_EVENT_PORT when it is panciked. This patch introduces a new
 qom device kvm_pv_ioport to listen this I/O port, and deal with panicked
 event according to panicked_action's value. The possible actions are:
 1. emit QEVENT_GUEST_PANICKED only
 2. emit QEVENT_GUEST_PANICKED and pause the guest
 3. emit QEVENT_GUEST_PANICKED and poweroff the guest
 4. emit QEVENT_GUEST_PANICKED and reset the guest

 I/O ports does not work for some targets(for example: s390). And you
 can implement another qom device, and include it's code into pv_event.c
 for such target.

 Note: if we emit QEVENT_GUEST_PANICKED only, and the management
 application does not receive this event(the management may not
 run when the event is emitted), the management won't know the
 guest is panicked.

 Signed-off-by: Wen Congyang we...@cn.fujitsu.com
 ---
  hw/kvm/Makefile.objs |2 +-
  hw/kvm/pv_event.c|  109 
 ++
  hw/kvm/pv_ioport.c   |   93 ++
  hw/pc_piix.c |9 
  kvm.h|2 +
  5 files changed, 214 insertions(+), 1 deletions(-)
  create mode 100644 hw/kvm/pv_event.c
  create mode 100644 hw/kvm/pv_ioport.c

 diff --git a/hw/kvm/Makefile.objs b/hw/kvm/Makefile.objs
 index 226497a..23e3b30 100644
 --- a/hw/kvm/Makefile.objs
 +++ b/hw/kvm/Makefile.objs
 @@ -1 +1 @@
 -obj-$(CONFIG_KVM) += clock.o apic.o i8259.o ioapic.o i8254.o
 +obj-$(CONFIG_KVM) += clock.o apic.o i8259.o ioapic.o i8254.o pv_event.o
 diff --git a/hw/kvm/pv_event.c b/hw/kvm/pv_event.c
 new file mode 100644
 index 000..8897237
 --- /dev/null
 +++ b/hw/kvm/pv_event.c
 @@ -0,0 +1,109 @@
 +/*
 + * QEMU KVM support, paravirtual event device
 + *
 + * Copyright Fujitsu, Corp. 2012
 + *
 + * Authors:
 + * Wen Congyang we...@cn.fujitsu.com
 + *
 + * This work is licensed under the terms of the GNU GPL, version 2 or later.
 + * See the COPYING file in the top-level directory.
 + *
 + */
 +
 +#include linux/kvm_para.h
 +#include asm/kvm_para.h
 +#include qobject.h
 +#include qjson.h
 +#include monitor.h
 +#include sysemu.h
 +#include kvm.h
 +
 +/* Possible values for action parameter. */
 +#define PANICKED_REPORT 1   /* emit QEVENT_GUEST_PANICKED only */
 +#define PANICKED_PAUSE  2   /* emit QEVENT_GUEST_PANICKED and pause VM 
 */
 +#define PANICKED_POWEROFF   3   /* emit QEVENT_GUEST_PANICKED and quit VM */
 +#define PANICKED_RESET  4   /* emit QEVENT_GUEST_PANICKED and reset VM 
 */
 +
 +#define PV_EVENT_DRIVER kvm_pv_event
 +
 +struct pv_event_action {
 
 PVEventAction
 
 +char *panicked_action;
 +int panicked_action_value;
 +};
 +
 +#define DEFINE_PV_EVENT_PROPERTIES(_state, _conf)   \
 +DEFINE_PROP_STRING(panicked_action, _state, _conf.panicked_action)
 +
 +static void panicked_mon_event(const char *action)
 +{
 +QObject *data;
 +
 +data = qobject_from_jsonf({ 'action': %s }, action);
 +monitor_protocol_event(QEVENT_GUEST_PANICKED, data);
 +qobject_decref(data);
 +}
 +
 +static void panicked_perform_action(uint32_t panicked_action)
 +{
 +switch (panicked_action) {
 +case PANICKED_REPORT:
 +panicked_mon_event(report);
 +break;
 +
 +case PANICKED_PAUSE:
 +panicked_mon_event(pause);
 +vm_stop(RUN_STATE_GUEST_PANICKED);
 +break;
 +
 +case PANICKED_POWEROFF:
 +panicked_mon_event(poweroff);
 +qemu_system_shutdown_request();
 +break;
 
 Misses a line break unlike other cases.
 
 +case PANICKED_RESET:
 +panicked_mon_event(reset);
 +qemu_system_reset_request();
 +break;
 +}
 +}
 +
 +static uint64_t supported_event(void)
 +{
 +return 1  KVM_PV_FEATURE_PANICKED;
 +}
 +
 +static void handle_event(int event, struct pv_event_action *conf)
 +{
 +if (event == KVM_PV_EVENT_PANICKED) {
 +panicked_perform_action(conf-panicked_action_value);
 +}
 +}
 +
 +static int pv_event_init(struct pv_event_action *conf)
 +{
 +if (!conf-panicked_action) {
 +conf-panicked_action_value = PANICKED_REPORT;
 +} else if (strcasecmp(conf-panicked_action, none) == 0) {
 +conf-panicked_action_value = PANICKED_REPORT;
 +} else if (strcasecmp(conf-panicked_action, pause) == 0) {
 +conf-panicked_action_value = PANICKED_PAUSE;
 +} else if (strcasecmp(conf-panicked_action, poweroff) == 0) {
 +conf-panicked_action_value = PANICKED_POWEROFF;
 +} else if (strcasecmp(conf-panicked_action, reset) == 0) {
 +conf-panicked_action_value = PANICKED_RESET;
 +} else {
 +return -1;
 +}
 +
 +return 0;
 +}
 +
 +#if defined(KVM_PV_EVENT_PORT)
 +
 +#include pv_ioport.c
 
 I'd rather not include any .c files but insert the contents here directly.
 
 +
 +#else

Re: [Qemu-devel] [PATCH v8 5/6] introduce a new qom device to deal with panicked event

2012-08-08 Thread Blue Swirl

On Wed, Aug 8, 2012 at 2:47 AM, Wen Congyang we...@cn.fujitsu.com wrote:
 If the target is x86/x86_64, the guest's kernel will write 0x01 to the
 port KVM_PV_EVENT_PORT when it is panciked. This patch introduces a new
 qom device kvm_pv_ioport to listen this I/O port, and deal with panicked
 event according to panicked_action's value. The possible actions are:
 1. emit QEVENT_GUEST_PANICKED only
 2. emit QEVENT_GUEST_PANICKED and pause the guest
 3. emit QEVENT_GUEST_PANICKED and poweroff the guest
 4. emit QEVENT_GUEST_PANICKED and reset the guest

 I/O ports does not work for some targets(for example: s390). And you
 can implement another qom device, and include it's code into pv_event.c
 for such target.

 Note: if we emit QEVENT_GUEST_PANICKED only, and the management
 application does not receive this event(the management may not
 run when the event is emitted), the management won't know the
 guest is panicked.

 Signed-off-by: Wen Congyang we...@cn.fujitsu.com
 ---
  hw/kvm/Makefile.objs |2 +-
  hw/kvm/pv_event.c|  109 
 ++
  hw/kvm/pv_ioport.c   |   93 ++
  hw/pc_piix.c |9 
  kvm.h|2 +
  5 files changed, 214 insertions(+), 1 deletions(-)
  create mode 100644 hw/kvm/pv_event.c
  create mode 100644 hw/kvm/pv_ioport.c

 diff --git a/hw/kvm/Makefile.objs b/hw/kvm/Makefile.objs
 index 226497a..23e3b30 100644
 --- a/hw/kvm/Makefile.objs
 +++ b/hw/kvm/Makefile.objs
 @@ -1 +1 @@
 -obj-$(CONFIG_KVM) += clock.o apic.o i8259.o ioapic.o i8254.o
 +obj-$(CONFIG_KVM) += clock.o apic.o i8259.o ioapic.o i8254.o pv_event.o
 diff --git a/hw/kvm/pv_event.c b/hw/kvm/pv_event.c
 new file mode 100644
 index 000..8897237
 --- /dev/null
 +++ b/hw/kvm/pv_event.c
 @@ -0,0 +1,109 @@
 +/*
 + * QEMU KVM support, paravirtual event device
 + *
 + * Copyright Fujitsu, Corp. 2012
 + *
 + * Authors:
 + * Wen Congyang we...@cn.fujitsu.com
 + *
 + * This work is licensed under the terms of the GNU GPL, version 2 or later.
 + * See the COPYING file in the top-level directory.
 + *
 + */
 +
 +#include linux/kvm_para.h
 +#include asm/kvm_para.h
 +#include qobject.h
 +#include qjson.h
 +#include monitor.h
 +#include sysemu.h
 +#include kvm.h
 +
 +/* Possible values for action parameter. */
 +#define PANICKED_REPORT 1   /* emit QEVENT_GUEST_PANICKED only */
 +#define PANICKED_PAUSE  2   /* emit QEVENT_GUEST_PANICKED and pause VM */
 +#define PANICKED_POWEROFF   3   /* emit QEVENT_GUEST_PANICKED and quit VM */
 +#define PANICKED_RESET  4   /* emit QEVENT_GUEST_PANICKED and reset VM */
 +
 +#define PV_EVENT_DRIVER kvm_pv_event
 +
 +struct pv_event_action {

PVEventAction

 +char *panicked_action;
 +int panicked_action_value;
 +};
 +
 +#define DEFINE_PV_EVENT_PROPERTIES(_state, _conf)   \
 +DEFINE_PROP_STRING(panicked_action, _state, _conf.panicked_action)
 +
 +static void panicked_mon_event(const char *action)
 +{
 +QObject *data;
 +
 +data = qobject_from_jsonf({ 'action': %s }, action);
 +monitor_protocol_event(QEVENT_GUEST_PANICKED, data);
 +qobject_decref(data);
 +}
 +
 +static void panicked_perform_action(uint32_t panicked_action)
 +{
 +switch (panicked_action) {
 +case PANICKED_REPORT:
 +panicked_mon_event(report);
 +break;
 +
 +case PANICKED_PAUSE:
 +panicked_mon_event(pause);
 +vm_stop(RUN_STATE_GUEST_PANICKED);
 +break;
 +
 +case PANICKED_POWEROFF:
 +panicked_mon_event(poweroff);
 +qemu_system_shutdown_request();
 +break;

Misses a line break unlike other cases.

 +case PANICKED_RESET:
 +panicked_mon_event(reset);
 +qemu_system_reset_request();
 +break;
 +}
 +}
 +
 +static uint64_t supported_event(void)
 +{
 +return 1  KVM_PV_FEATURE_PANICKED;
 +}
 +
 +static void handle_event(int event, struct pv_event_action *conf)
 +{
 +if (event == KVM_PV_EVENT_PANICKED) {
 +panicked_perform_action(conf-panicked_action_value);
 +}
 +}
 +
 +static int pv_event_init(struct pv_event_action *conf)
 +{
 +if (!conf-panicked_action) {
 +conf-panicked_action_value = PANICKED_REPORT;
 +} else if (strcasecmp(conf-panicked_action, none) == 0) {
 +conf-panicked_action_value = PANICKED_REPORT;
 +} else if (strcasecmp(conf-panicked_action, pause) == 0) {
 +conf-panicked_action_value = PANICKED_PAUSE;
 +} else if (strcasecmp(conf-panicked_action, poweroff) == 0) {
 +conf-panicked_action_value = PANICKED_POWEROFF;
 +} else if (strcasecmp(conf-panicked_action, reset) == 0) {
 +conf-panicked_action_value = PANICKED_RESET;
 +} else {
 +return -1;
 +}
 +
 +return 0;
 +}
 +
 +#if defined(KVM_PV_EVENT_PORT)
 +
 +#include pv_ioport.c

I'd rather not include any .c files but insert the contents here directly.

 +
 +#else
 +void kvm_pv_event_init(void *opaque)
 +{
 +}
 +#endif
 diff

[Qemu-devel] [PATCH v8 5/6] introduce a new qom device to deal with panicked event

2012-08-07 Thread Wen Congyang

If the target is x86/x86_64, the guest's kernel will write 0x01 to the
port KVM_PV_EVENT_PORT when it is panciked. This patch introduces a new
qom device kvm_pv_ioport to listen this I/O port, and deal with panicked
event according to panicked_action's value. The possible actions are:
1. emit QEVENT_GUEST_PANICKED only
2. emit QEVENT_GUEST_PANICKED and pause the guest
3. emit QEVENT_GUEST_PANICKED and poweroff the guest
4. emit QEVENT_GUEST_PANICKED and reset the guest

I/O ports does not work for some targets(for example: s390). And you
can implement another qom device, and include it's code into pv_event.c
for such target.

Note: if we emit QEVENT_GUEST_PANICKED only, and the management
application does not receive this event(the management may not
run when the event is emitted), the management won't know the
guest is panicked.

Signed-off-by: Wen Congyang we...@cn.fujitsu.com
---
 hw/kvm/Makefile.objs |2 +-
 hw/kvm/pv_event.c|  109 ++
 hw/kvm/pv_ioport.c   |   93 ++
 hw/pc_piix.c |9 
 kvm.h|2 +
 5 files changed, 214 insertions(+), 1 deletions(-)
 create mode 100644 hw/kvm/pv_event.c
 create mode 100644 hw/kvm/pv_ioport.c

diff --git a/hw/kvm/Makefile.objs b/hw/kvm/Makefile.objs
index 226497a..23e3b30 100644
--- a/hw/kvm/Makefile.objs
+++ b/hw/kvm/Makefile.objs
@@ -1 +1 @@
-obj-$(CONFIG_KVM) += clock.o apic.o i8259.o ioapic.o i8254.o
+obj-$(CONFIG_KVM) += clock.o apic.o i8259.o ioapic.o i8254.o pv_event.o
diff --git a/hw/kvm/pv_event.c b/hw/kvm/pv_event.c
new file mode 100644
index 000..8897237
--- /dev/null
+++ b/hw/kvm/pv_event.c
@@ -0,0 +1,109 @@
+/*
+ * QEMU KVM support, paravirtual event device
+ *
+ * Copyright Fujitsu, Corp. 2012
+ *
+ * Authors:
+ * Wen Congyang we...@cn.fujitsu.com
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+#include linux/kvm_para.h
+#include asm/kvm_para.h
+#include qobject.h
+#include qjson.h
+#include monitor.h
+#include sysemu.h
+#include kvm.h
+
+/* Possible values for action parameter. */
+#define PANICKED_REPORT 1   /* emit QEVENT_GUEST_PANICKED only */
+#define PANICKED_PAUSE  2   /* emit QEVENT_GUEST_PANICKED and pause VM */
+#define PANICKED_POWEROFF   3   /* emit QEVENT_GUEST_PANICKED and quit VM */
+#define PANICKED_RESET  4   /* emit QEVENT_GUEST_PANICKED and reset VM */
+
+#define PV_EVENT_DRIVER kvm_pv_event
+
+struct pv_event_action {
+char *panicked_action;
+int panicked_action_value;
+};
+
+#define DEFINE_PV_EVENT_PROPERTIES(_state, _conf)   \
+DEFINE_PROP_STRING(panicked_action, _state, _conf.panicked_action)
+
+static void panicked_mon_event(const char *action)
+{
+QObject *data;
+
+data = qobject_from_jsonf({ 'action': %s }, action);
+monitor_protocol_event(QEVENT_GUEST_PANICKED, data);
+qobject_decref(data);
+}
+
+static void panicked_perform_action(uint32_t panicked_action)
+{
+switch (panicked_action) {
+case PANICKED_REPORT:
+panicked_mon_event(report);
+break;
+
+case PANICKED_PAUSE:
+panicked_mon_event(pause);
+vm_stop(RUN_STATE_GUEST_PANICKED);
+break;
+
+case PANICKED_POWEROFF:
+panicked_mon_event(poweroff);
+qemu_system_shutdown_request();
+break;
+case PANICKED_RESET:
+panicked_mon_event(reset);
+qemu_system_reset_request();
+break;
+}
+}
+
+static uint64_t supported_event(void)
+{
+return 1  KVM_PV_FEATURE_PANICKED;
+}
+
+static void handle_event(int event, struct pv_event_action *conf)
+{
+if (event == KVM_PV_EVENT_PANICKED) {
+panicked_perform_action(conf-panicked_action_value);
+}
+}
+
+static int pv_event_init(struct pv_event_action *conf)
+{
+if (!conf-panicked_action) {
+conf-panicked_action_value = PANICKED_REPORT;
+} else if (strcasecmp(conf-panicked_action, none) == 0) {
+conf-panicked_action_value = PANICKED_REPORT;
+} else if (strcasecmp(conf-panicked_action, pause) == 0) {
+conf-panicked_action_value = PANICKED_PAUSE;
+} else if (strcasecmp(conf-panicked_action, poweroff) == 0) {
+conf-panicked_action_value = PANICKED_POWEROFF;
+} else if (strcasecmp(conf-panicked_action, reset) == 0) {
+conf-panicked_action_value = PANICKED_RESET;
+} else {
+return -1;
+}
+
+return 0;
+}
+
+#if defined(KVM_PV_EVENT_PORT)
+
+#include pv_ioport.c
+
+#else
+void kvm_pv_event_init(void *opaque)
+{
+}
+#endif
diff --git a/hw/kvm/pv_ioport.c b/hw/kvm/pv_ioport.c
new file mode 100644
index 000..c2ed6b5
--- /dev/null
+++ b/hw/kvm/pv_ioport.c
@@ -0,0 +1,93 @@
+/*
+ * QEMU KVM support, paravirtual I/O port device
+ *
+ * Copyright Fujitsu, Corp. 2012
+ *
+ * Authors:
+ * Wen Congyang we...@cn.fujitsu.com
+ *
+ * This work is licensed under the terms of the GNU

Re: [Qemu-devel] [PATCH v8 5/6] introduce a new qom device to deal with panicked event

Re: [Qemu-devel] [PATCH v8 5/6] introduce a new qom device to deal with panicked event

Re: [Qemu-devel] [PATCH v8 5/6] introduce a new qom device to deal with panicked event

[Qemu-devel] [PATCH v8 5/6] introduce a new qom device to deal with panicked event

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