2 files changed, 14 insertions, 3 deletions
diff --git a/cddl/contrib/opensolaris/cmd/dtrace/dtrace.1 b/cddl/contrib/opensolaris/cmd/dtrace/dtrace.1
index e263b936700d..5115d16a1286 100644
--- a/cddl/contrib/opensolaris/cmd/dtrace/dtrace.1
+++ b/cddl/contrib/opensolaris/cmd/dtrace/dtrace.1
@@ -20,7 +20,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd July 30, 2025
+.Dd November 8, 2025
 .Dt DTRACE 1
 .Os
 .Sh NAME
@@ -548,7 +548,7 @@ to disallow the possibility of enabling destructive actions system-wide at any p
 Any attempts to enable destructive actions will cause
 .Nm
 to exit with a runtime error.
-.It Fl x Ar arg Op Ns = Ns value
+.It Fl x Ar arg Ns Op = Ns Ar value
 Enable or modify a DTrace runtime option or D compiler option.
 Boolean options are enabled by specifying their name.
 Options with values are set by separating the option name and value with an
@@ -1252,6 +1252,14 @@ command line to define a set of macro variables and so forth).
 The additional arguments can be used in D programs specified using the
 .Fl s
 option or on the command line.
+.Sh ENVIRONMENT
+.Bl -tag -width 'DTRACE_DEBUG'
+.It Ev DTRACE_DEBUG
+When defined,
+.Nm
+will output debug log messages to
+.Xr stderr 4 .
+.El
 .Sh FILES
 .Bl -tag -width /boot/dtrace.dof -compact
 .It Pa /boot/dtrace.dof
@@ -1292,12 +1300,14 @@ in
 .Xr cpp 1 ,
 .Xr dwatch 1 ,
 .Xr dtrace_audit 4 ,
+.Xr dtrace_callout_execute 4 ,
 .Xr dtrace_dtrace 4 ,
 .Xr dtrace_fbt 4 ,
 .Xr dtrace_io 4 ,
 .Xr dtrace_ip 4 ,
 .Xr dtrace_kinst 4 ,
 .Xr dtrace_lockstat 4 ,
+.Xr dtrace_pid 4 ,
 .Xr dtrace_proc 4 ,
 .Xr dtrace_profile 4 ,
 .Xr dtrace_sched 4 ,
@@ -1305,6 +1315,7 @@ in
 .Xr dtrace_tcp 4 ,
 .Xr dtrace_udp 4 ,
 .Xr dtrace_udplite 4 ,
+.Xr dtrace_vfs 4 ,
 .Xr elf 5 ,
 .Xr d 7 ,
 .Xr tracing 7 ,
diff --git a/cddl/lib/libdtrace/io.d b/cddl/lib/libdtrace/io.d
index d576f57476ce..484e6416bac7 100644
--- a/cddl/lib/libdtrace/io.d
+++ b/cddl/lib/libdtrace/io.d
@@ -73,7 +73,7 @@ translator bufinfo_t < struct bio *B > {
 	b_lblkno = 0;
 	b_resid = B->bio_resid;
 	b_bufsize = 0; /* XXX gnn */
-	b_error = B->bio_error;
+	b_error = B->bio_exterr.error;
 };
 
 /*