[PATCH] xen: support changed item in struct domain
by Dietmar Hahn
Hi,
with xen version 4.2.5 in struct domain the item is_paused_by_controller
got changed to controller_pause_count and hence crash doesn't work on
newer xen environments.
This patch allows to support older and newer xen versions.
Dietmar.
diff -pNaur crash-7.1.0-org/xen_hyper.c crash-7.1.0/xen_hyper.c
--- crash-7.1.0-org/xen_hyper.c 2015-02-06 19:44:11.000000000 +0100
+++ crash-7.1.0/xen_hyper.c 2015-03-11 12:02:17.000000000 +0100
@@ -218,7 +218,12 @@ xen_hyper_domain_init(void)
XEN_HYPER_MEMBER_OFFSET_INIT(domain_is_polling, "domain", "is_polling");
XEN_HYPER_MEMBER_OFFSET_INIT(domain_is_dying, "domain", "is_dying");
+ /*
+ * With Xen 4.2.5 is_paused_by_controller changed to
+ * controller_pause_count.
+ */
XEN_HYPER_MEMBER_OFFSET_INIT(domain_is_paused_by_controller, "domain", "is_paused_by_controller");
+ XEN_HYPER_MEMBER_OFFSET_INIT(domain_controller_pause_count, "domain", "controller_pause_count");
XEN_HYPER_MEMBER_OFFSET_INIT(domain_is_shutting_down, "domain", "is_shutting_down");
XEN_HYPER_MEMBER_OFFSET_INIT(domain_is_shut_down, "domain", "is_shut_down");
XEN_HYPER_MEMBER_OFFSET_INIT(domain_vcpu, "domain", "vcpu");
@@ -1269,7 +1274,12 @@ xen_hyper_store_domain_context(struct xe
*(dp + XEN_HYPER_OFFSET(domain_is_polling))) {
dc->domain_flags |= XEN_HYPER_DOMS_polling;
}
- if (*(dp + XEN_HYPER_OFFSET(domain_is_paused_by_controller))) {
+ if (XEN_HYPER_VALID_MEMBER(domain_is_paused_by_controller) &&
+ *(dp + XEN_HYPER_OFFSET(domain_is_paused_by_controller))) {
+ dc->domain_flags |= XEN_HYPER_DOMS_ctrl_pause;
+ }
+ if (XEN_HYPER_VALID_MEMBER(domain_controller_pause_count) &&
+ *(dp + XEN_HYPER_OFFSET(domain_controller_pause_count))) {
dc->domain_flags |= XEN_HYPER_DOMS_ctrl_pause;
}
if (*(dp + XEN_HYPER_OFFSET(domain_is_dying))) {
diff -pNaur crash-7.1.0-org/xen_hyper_defs.h crash-7.1.0/xen_hyper_defs.h
--- crash-7.1.0-org/xen_hyper_defs.h 2015-02-06 19:44:11.000000000 +0100
+++ crash-7.1.0/xen_hyper_defs.h 2015-03-11 12:02:17.000000000 +0100
@@ -678,6 +678,10 @@ struct xen_hyper_offset_table {
long domain_debugger_attached;
long domain_is_polling;
long domain_is_dying;
+ /*
+ * This changed from xen-4.2.5 to domain_controller_pause_count.
+ * See below!
+ */
long domain_is_paused_by_controller;
long domain_is_shutting_down;
long domain_is_shut_down;
@@ -752,6 +756,8 @@ struct xen_hyper_offset_table {
long vcpu_runstate_info_state;
long vcpu_runstate_info_state_entry_time;
long vcpu_runstate_info_time;
+ /* domain - changed item see domain_is_paused_by_controller */
+ long domain_controller_pause_count;
};
/*
diff -pNaur crash-7.1.0-org/xen_hyper_dump_tables.c crash-7.1.0/xen_hyper_dump_tables.c
--- crash-7.1.0-org/xen_hyper_dump_tables.c 2015-02-06 19:44:11.000000000 +0100
+++ crash-7.1.0/xen_hyper_dump_tables.c 2015-03-11 12:05:59.000000000 +0100
@@ -784,8 +784,11 @@ xen_hyper_dump_xen_hyper_offset_table(ch
}
XEN_HYPER_PRI(fp, len, "domain_is_dying: ", buf, flag,
(buf, "%ld\n", xen_hyper_offset_table.domain_is_dying));
+ /* Only one of next both exists but print both, ones value is -1. */
XEN_HYPER_PRI(fp, len, "domain_is_paused_by_controller: ", buf, flag,
(buf, "%ld\n", xen_hyper_offset_table.domain_is_paused_by_controller));
+ XEN_HYPER_PRI(fp, len, "domain_controller_pause_count: ", buf, flag,
+ (buf, "%ld\n", xen_hyper_offset_table.domain_controller_pause_count));
XEN_HYPER_PRI(fp, len, "domain_is_shutting_down: ", buf, flag,
(buf, "%ld\n", xen_hyper_offset_table.domain_is_shutting_down));
XEN_HYPER_PRI(fp, len, "domain_is_shut_down: ", buf, flag,
--
Company details: http://ts.fujitsu.com/imprint.html
10 years, 1 month
- 2
- 2
Crash problems with Xen
by Dietmar Hahn
Hi,
for me crash failed to debug xen environments with:
crash: invalid structure member offset: domain_is_paused_by_controller
FILE: xen_hyper.c LINE: 1255 FUNCTION: xen_hyper_store_domain_context()
[/usr/bin/crash] error trace: 546170 => 545bc9 => 545a81 => 510fd0
510fd0: OFFSET_verify+224
545a81: xen_hyper_store_domain_context+1265
545bc9: xen_hyper_refresh_domain_context_space+153
546170: xen_hyper_domain_init+864
The problem is a change of an item in struct domain in xen version 4.2
I tried to fix the problem for me so I can debug the old and the newer
xen versions. I'm not sure this was the right way to fix this.
Thanks.
Dietmar.
diff -pNaur crash-7.1.0-org/xen_hyper.c crash-7.1.0/xen_hyper.c
--- crash-7.1.0-org/xen_hyper.c 2015-02-06 19:44:11.000000000 +0100
+++ crash-7.1.0/xen_hyper.c 2015-03-10 13:57:48.000000000 +0100
@@ -218,7 +218,12 @@ xen_hyper_domain_init(void)
XEN_HYPER_MEMBER_OFFSET_INIT(domain_is_polling, "domain", "is_polling");
XEN_HYPER_MEMBER_OFFSET_INIT(domain_is_dying, "domain", "is_dying");
+ /*
+ * In Xen 4.2 is_paused_by_controller changed to
+ * controller_pause_count.
+ */
XEN_HYPER_MEMBER_OFFSET_INIT(domain_is_paused_by_controller, "domain", "is_paused_by_controller");
+ XEN_HYPER_MEMBER_OFFSET_INIT(domain_controller_pause_count, "domain", "controller_pause_count");
XEN_HYPER_MEMBER_OFFSET_INIT(domain_is_shutting_down, "domain", "is_shutting_down");
XEN_HYPER_MEMBER_OFFSET_INIT(domain_is_shut_down, "domain", "is_shut_down");
XEN_HYPER_MEMBER_OFFSET_INIT(domain_vcpu, "domain", "vcpu");
@@ -1269,9 +1274,15 @@ xen_hyper_store_domain_context(struct xe
*(dp + XEN_HYPER_OFFSET(domain_is_polling))) {
dc->domain_flags |= XEN_HYPER_DOMS_polling;
}
- if (*(dp + XEN_HYPER_OFFSET(domain_is_paused_by_controller))) {
+ if (XEN_HYPER_VALID_MEMBER(domain_is_paused_by_controller) &&
+ *(dp + XEN_HYPER_OFFSET(domain_is_paused_by_controller))) {
dc->domain_flags |= XEN_HYPER_DOMS_ctrl_pause;
}
+ if (XEN_HYPER_VALID_MEMBER(domain_controller_pause_count) &&
+ *(dp + XEN_HYPER_OFFSET(domain_controller_pause_count))) {
+ dc->domain_flags |= XEN_HYPER_DOMS_ctrl_pause;
+ }
+
if (*(dp + XEN_HYPER_OFFSET(domain_is_dying))) {
dc->domain_flags |= XEN_HYPER_DOMS_dying;
}
diff -pNaur crash-7.1.0-org/xen_hyper_defs.h crash-7.1.0/xen_hyper_defs.h
--- crash-7.1.0-org/xen_hyper_defs.h 2015-02-06 19:44:11.000000000 +0100
+++ crash-7.1.0/xen_hyper_defs.h 2015-03-10 13:52:37.000000000 +0100
@@ -679,6 +679,7 @@ struct xen_hyper_offset_table {
long domain_is_polling;
long domain_is_dying;
long domain_is_paused_by_controller;
+ long domain_controller_pause_count;
long domain_is_shutting_down;
long domain_is_shut_down;
long domain_vcpu;
diff -pNaur crash-7.1.0-org/xen_hyper_dump_tables.c crash-7.1.0/xen_hyper_dump_tables.c
--- crash-7.1.0-org/xen_hyper_dump_tables.c 2015-02-06 19:44:11.000000000 +0100
+++ crash-7.1.0/xen_hyper_dump_tables.c 2015-03-10 14:00:20.000000000 +0100
@@ -784,8 +784,14 @@ xen_hyper_dump_xen_hyper_offset_table(ch
}
XEN_HYPER_PRI(fp, len, "domain_is_dying: ", buf, flag,
(buf, "%ld\n", xen_hyper_offset_table.domain_is_dying));
- XEN_HYPER_PRI(fp, len, "domain_is_paused_by_controller: ", buf, flag,
- (buf, "%ld\n", xen_hyper_offset_table.domain_is_paused_by_controller));
+ if (XEN_HYPER_VALID_MEMBER(domain_is_paused_by_controller)) {
+ XEN_HYPER_PRI(fp, len, "domain_is_paused_by_controller: ", buf, flag,
+ (buf, "%ld\n", xen_hyper_offset_table.domain_is_paused_by_controller));
+ }
+ if (XEN_HYPER_VALID_MEMBER(domain_controller_pause_count)) {
+ XEN_HYPER_PRI(fp, len, "domain_controller_pause_count: ", buf, flag,
+ (buf, "%ld\n", xen_hyper_offset_table.domain_controller_pause_count));
+ }
XEN_HYPER_PRI(fp, len, "domain_is_shutting_down: ", buf, flag,
(buf, "%ld\n", xen_hyper_offset_table.domain_is_shutting_down));
XEN_HYPER_PRI(fp, len, "domain_is_shut_down: ", buf, flag,
--
Company details: http://ts.fujitsu.com/imprint.html
10 years, 1 month
- 3
- 5
[PATCH] MIPS: fix native build
by Rabin Vincent
I've now managed to tested HOST==TARGET MIPS builds of crash (with
Debian running on top of QEMU's full-system MIPS emulation), and the
following fix is needed. The preprocessor macro check for MIPS in
configure.c is incorrect and should be checking for __mips__, not
__mipsel___. This allows native build on both big-endian and
little-endian MIPS systems.
---
configure.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/configure.c b/configure.c
index 800173a..9fe9f81 100644
--- a/configure.c
+++ b/configure.c
@@ -375,7 +375,7 @@ get_current_configuration(struct supported_gdb_version *sp)
#ifdef __aarch64__
target_data.target = ARM64;
#endif
-#ifdef __mipsel___
+#ifdef __mips__
target_data.target = MIPS;
#endif
--
2.1.4
10 years, 1 month
- 3
- 3