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From: naresh kamboju on 22 Feb 2010 09:10
Hi,

I have noticed below error after enabling CONFIG_LTT_RELAY_LOCKED=y

CC ltt/ltt-relay-locked.o
In file included from ltt/ltt-relay-locked.c:56:
ltt/ltt-relay-locked.h: In function 'ltt_check_deliver':
ltt/ltt-relay-locked.h:167: (first use in this function)
ltt/ltt-relay-locked.h:167: error: (Each undeclared identifier is
reported only once
ltt/ltt-relay-locked.h:167: error: for each function it appears in.)

After my work around I have found error is caused from the
lttng-relay-locked-writer-use-noref-flag.patch

Below patch will fix the compilation issues.
Please review this patch.

---
ltt/ltt-relay-locked.h | 2 1 + 1 - 0 !
1 file changed, 1 insertion(+), 1 deletion(-)

Index: b/ltt/ltt-relay-locked.h
===================================================================
--- a/ltt/ltt-relay-locked.h
+++ b/ltt/ltt-relay-locked.h
@@ -164,7 +164,7 @@ static __inline__ void ltt_check_deliver
*/
ltt_set_noref_flag(rchan, buf, idx);
#ifdef CONFIG_LTT_VMCORE
- ltt_buf->commit_seq[subbuf_idx] = commit_count;
+ ltt_buf->commit_seq[idx] = commit_count;
#endif
ltt_buf->wakeup_readers = 1;
}

For your information LTTng configuration. dotconfig


CONFIG_LTT=y
CONFIG_LTT_FILTER=m
CONFIG_HAVE_LTT_DUMP_TABLES=y
CONFIG_LTT_RELAY_ALLOC=y
# CONFIG_LTT_RELAY_LOCKLESS is not set
# CONFIG_LTT_RELAY_IRQOFF is not set
CONFIG_LTT_RELAY_LOCKED=y
CONFIG_LTT_SERIALIZE=y
CONFIG_LTT_FAST_SERIALIZE=y
CONFIG_LTT_TRACEPROBES=m
CONFIG_LTT_TRACE_CONTROL=y
CONFIG_LTT_TRACER=y
CONFIG_LTT_ALIGNMENT=y
CONFIG_LTT_CHECK_ARCH_EFFICIENT_UNALIGNED_ACCESS=y
# CONFIG_LTT_DEBUG_EVENT_SIZE is not set
CONFIG_LTT_USERSPACE_EVENT=m
CONFIG_LTT_VMCORE=y
CONFIG_LTT_STATEDUMP=m
CONFIG_LTT_KPROBES=m

Please review the patch and provide your comments.

Kernel: 2.6.29-RT
Lttng: 0.158
ARCH: ARM

Best regards
Naresh Kamboju
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