:vnode_pager_putpages: residual I/O 65536 at XXXX
:
:where XXX is a number.
:
:It junks the console with this message. It is my fault since /home got
:full but it should handle it somehow, the machine reacts to
:CTRL-ALT-DEL by the way. But I cannot stop apps that write to the disk
:and the machine becomes unresponsive via SSH and local console as well,
:only the aforementioned solution helps.
:
:--
:Gergo Szakal MD <[EMAIL PROTECTED]>
:University Of Szeged, HU
:Faculty Of General Medicine
:
:/* Please do not CC me with replies, thank you. */
Try this patch. We need a kprintf wrapper for this anyway so I went
ahead and wrote one. The pps rate check code is kinda hokey.
-Matt
Matthew Dillon
<[EMAIL PROTECTED]>
Index: kern/subr_prf.c
===================================================================
RCS file: /cvs/src/sys/kern/subr_prf.c,v
retrieving revision 1.17
diff -u -p -r1.17 subr_prf.c
--- kern/subr_prf.c 26 Dec 2006 11:01:07 -0000 1.17
+++ kern/subr_prf.c 28 Jul 2007 19:31:56 -0000
@@ -332,6 +332,28 @@ return (retval);
}
/*
+ * Limited rate kprintf. The passed rate structure must be initialized
+ * with the desired reporting frequency. A frequency of 0 will result in
+ * no output.
+ */
+void
+krateprintf(struct krate *rate, const char *fmt, ...)
+{
+ __va_list ap;
+
+ if (rate->ticks != ticks) {
+ rate->ticks = ticks;
+ rate->count = 0;
+ }
+ if (rate->count < rate->freq) {
+ ++rate->count;
+ __va_start(ap, fmt);
+ kvprintf(fmt, ap);
+ __va_end(ap);
+ }
+}
+
+/*
* Print a character on console or users terminal. If destination is
* the console then the last bunch of characters are saved in msgbuf for
* inspection later.
Index: sys/systm.h
===================================================================
RCS file: /cvs/src/sys/sys/systm.h,v
retrieving revision 1.73
diff -u -p -r1.73 systm.h
--- sys/systm.h 2 Jul 2007 16:52:01 -0000 1.73
+++ sys/systm.h 28 Jul 2007 19:25:33 -0000
@@ -132,6 +132,7 @@ struct trapframe;
struct user;
struct vmspace;
struct savetls;
+struct krate;
void Debugger (const char *msg);
void backtrace(void);
@@ -172,6 +173,7 @@ int log (int, const char *, ...) __print
void logwakeup (void);
void log_console (struct uio *);
int kprintf (const char *, ...) __printflike(1, 2);
+void krateprintf (struct krate *, const char *, ...) __printflike(2, 3);
int ksnprintf (char *, size_t, const char *, ...) __printflike(3, 4);
int ksprintf (char *buf, const char *, ...) __printflike(2, 3);
int uprintf (const char *, ...) __printflike(1, 2);
Index: sys/time.h
===================================================================
RCS file: /cvs/src/sys/sys/time.h,v
retrieving revision 1.16
diff -u -p -r1.16 time.h
--- sys/time.h 7 Jan 2007 00:42:55 -0000 1.16
+++ sys/time.h 28 Jul 2007 19:28:18 -0000
@@ -192,6 +192,19 @@ #define TIMER_ABSTIME 0x1 /* absolute ti
#endif
#ifdef _KERNEL
+
+/*
+ * For krateprintf()
+ */
+struct krate {
+ int freq;
+ int ticks;
+ int count;
+};
+
+#endif
+
+#ifdef _KERNEL
extern time_t time_second;
extern int64_t ntp_tick_permanent;
extern int64_t ntp_tick_acc;
Index: vm/vnode_pager.c
===================================================================
RCS file: /cvs/src/sys/vm/vnode_pager.c,v
retrieving revision 1.34
diff -u -p -r1.34 vnode_pager.c
--- vm/vnode_pager.c 8 Jun 2007 02:00:47 -0000 1.34
+++ vm/vnode_pager.c 28 Jul 2007 19:28:16 -0000
@@ -91,6 +91,9 @@ vnode_pager_haspage,
NULL
};
+static struct krate vbadrate = { 1 };
+static struct krate vresrate = { 1 };
+
int vnode_pbuf_freecnt = -1; /* start out unlimited */
/*
@@ -1010,11 +1013,13 @@ mycpu->gd_cnt.v_vnodeout++;
mycpu->gd_cnt.v_vnodepgsout += ncount;
if (error) {
- kprintf("vnode_pager_putpages: I/O error %d\n", error);
+ krateprintf(&vbadrate,
+ "vnode_pager_putpages: I/O error %d\n", error);
}
if (auio.uio_resid) {
- kprintf("vnode_pager_putpages: residual I/O %d at %lu\n",
- auio.uio_resid, (u_long)m[0]->pindex);
+ krateprintf(&vresrate,
+ "vnode_pager_putpages: residual I/O %d at %lu\n",
+ auio.uio_resid, (u_long)m[0]->pindex);
}
for (i = 0; i < ncount; i++) {
rtvals[i] = VM_PAGER_OK;
