public inbox for dtrace@lists.linux.dev
 help / color / mirror / Atom feed
* [PATCH 1/6] Convert ip6_finish_output to rawfbt
@ 2025-09-05 17:07 eugene.loh
  2025-09-05 17:07 ` [PATCH] test: Update DTrace version string eugene.loh
  2025-09-05 17:08 ` [PATCH 1/6] Convert ip6_finish_output to rawfbt Eugene Loh
  0 siblings, 2 replies; 4+ messages in thread
From: eugene.loh @ 2025-09-05 17:07 UTC (permalink / raw)
  To: dtrace, dtrace-devel

From: Eugene Loh <eugene.loh@oracle.com>

With commit fe2101e55 ("fbt: implement based on fentry/fexit probes")
test/unittest/ip/tst.ipv6localicmp.sh started to fail.  The problem
appears to be that fbt::ip6_finish_output:entry, which is needed for
ip:::send, does not fire.

Use rawfbt for this probe to revert back to kprobes in this case.

Other fbt probes may also be impacted, but this case showed up in testing.

Signed-off-by: Eugene Loh <eugene.loh@oracle.com>
Reviewed-by: Alan Maguire <alan.maguire@oracle.com>
---
 libdtrace/dt_prov_ip.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libdtrace/dt_prov_ip.c b/libdtrace/dt_prov_ip.c
index e0919806..5384346b 100644
--- a/libdtrace/dt_prov_ip.c
+++ b/libdtrace/dt_prov_ip.c
@@ -25,7 +25,7 @@ static probe_dep_t	probes[] = {
 	{ "send",
 	  DTRACE_PROBESPEC_NAME,	"fbt::ip_finish_output:entry" },
 	{ "send",
-	  DTRACE_PROBESPEC_NAME,	"fbt::ip6_finish_output:entry" },
+	  DTRACE_PROBESPEC_NAME,	"rawfbt::ip6_finish_output:entry" },
 	{ NULL, }
 };
 
-- 
2.47.3


^ permalink raw reply related	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2025-09-11 20:49 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2025-09-05 17:07 [PATCH 1/6] Convert ip6_finish_output to rawfbt eugene.loh
2025-09-05 17:07 ` [PATCH] test: Update DTrace version string eugene.loh
2025-09-11 20:49   ` [DTrace-devel] " Kris Van Hees
2025-09-05 17:08 ` [PATCH 1/6] Convert ip6_finish_output to rawfbt Eugene Loh

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox