3 files changed, 3 insertions(+), 1 deletions(-)

M port/alloc.c
M port/portfns.h
M port/qio.c

@@ 360,7 360,7 @@ poolread(char *va, int count, ulong offset)
 	return n;
 }
 
-static void
+void
 tagwithpc(void *v, ulong pc)
 {
 	Bhdr *h;

@@ 304,6 304,7 @@ void		srvrecover(Chan*, Chan*);
 int		swapcount(ulong);
 int		swapfull(void);
 void		swapinit(void);
+void		tagwithpc(void*, ulong);
 vlong		todget(vlong*);
 void		todfix(void);
 void		todsetfreq(vlong);

@@ 974,6 974,7 @@ qwrite(Queue *q, void *vp, int len)
 			n = Maxatomic;
 
 		b = allocb(n);
+		tagwithpc(b, (up->text[0]<<24)|(up->text[1]<<16)|(up->text[2]<<8)|up->text[3]);
 		if(waserror()){
 			freeb(b);
 			nexterror();