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Fix: statedump: disable vm maps enumeration
[lttng-modules.git]
/
lttng-statedump-impl.c
diff --git
a/lttng-statedump-impl.c
b/lttng-statedump-impl.c
index c510986f504b0cedd1c857fec8d99c4d01978e22..e042a96deaceed9e941f1db06afbf4ea620892a7 100644
(file)
--- a/
lttng-statedump-impl.c
+++ b/
lttng-statedump-impl.c
@@
-186,6
+186,12
@@
int lttng_enumerate_file_descriptors(struct lttng_session *session)
return 0;
}
return 0;
}
+#if 0
+/*
+ * FIXME: we cannot take a mmap_sem while in a RCU read-side critical section
+ * (scheduling in atomic). Normally, the tasklist lock protects this kind of
+ * iteration, but it is not exported to modules.
+ */
static
void lttng_enumerate_task_vm_maps(struct lttng_session *session,
struct task_struct *p)
static
void lttng_enumerate_task_vm_maps(struct lttng_session *session,
struct task_struct *p)
@@
-226,6
+232,7
@@
int lttng_enumerate_vm_maps(struct lttng_session *session)
rcu_read_unlock();
return 0;
}
rcu_read_unlock();
return 0;
}
+#endif
#ifdef CONFIG_GENERIC_HARDIRQS
#ifdef CONFIG_GENERIC_HARDIRQS
@@
-341,7
+348,7
@@
int do_lttng_statedump(struct lttng_session *session)
trace_lttng_statedump_start(session);
lttng_enumerate_process_states(session);
lttng_enumerate_file_descriptors(session);
trace_lttng_statedump_start(session);
lttng_enumerate_process_states(session);
lttng_enumerate_file_descriptors(session);
- lttng_enumerate_vm_maps(session);
+ /* FIXME lttng_enumerate_vm_maps(session); */
lttng_list_interrupts(session);
lttng_enumerate_network_ip_interface(session);
lttng_list_interrupts(session);
lttng_enumerate_network_ip_interface(session);
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