options MSGBUFSIZE=
Julian Coleman <[email protected]>
| Newsgroups | gmane.os.netbsd.ports.sparc64 |
|---|---|
| Message-ID | <[email protected]> |
Hi,
Setting "options MSGBUFSIZE" currently causes a compilation error because
MSGBUFSIZE is defined (but unused). The attached allows MSGBUFSIZE to be
increased to 248K (253952). Included are points that mrg@ mentioned -
AUXREG_VA and TMPMAP_VA aren't used on sparc64, and INTSTACK has been moved
by 192K (out of nearly 256M).
Comments?
Thanks,
J
PS. I needed this because increasing the values of the USB-related debug
variables easily overruns 32K at boot.
--
My other computer also runs NetBSD / Sailing at Newbiggin
http://www.netbsd.org/ / http://www.newbigginsailingclub.org/
msgbuf.patch
(text/plain, 1.8 KB)
--- src/sys/arch/sparc64/include/param.h.dist 2014-02-24 09:11:52.000000000 +0000
+++ src/sys/arch/sparc64/include/param.h 2014-03-26 20:52:32.000000000 +0000
@@ -168,13 +168,12 @@
#define _MAXNBPG 8192 /* fixed VAs, independent of actual NBPG */
-#define AUXREG_VA ( KERNEND + _MAXNBPG) /* 1 page REDZONE */
-#define TMPMAP_VA ( AUXREG_VA + _MAXNBPG)
-#define MSGBUF_VA ( TMPMAP_VA + _MAXNBPG)
+#define MSGBUF_VA ( KERNEND + _MAXNBPG) /* 1 page REDZONE */
/*
+ * Maximum message buffer size is 192k.
* Here's the location of the interrupt stack and CPU structure.
*/
-#define INTSTACK ( KERNEND + 8*_MAXNBPG)
+#define INTSTACK ( KERNEND + 32*_MAXNBPG)
#define EINTSTACK ( INTSTACK + 4*_MAXNBPG)
#define CPUINFO_VA ( EINTSTACK )
#define PANICSTACK ( INTSTACK + 8*_MAXNBPG)
@@ -197,7 +196,13 @@
#define MCLBYTES (1 << MCLSHIFT) /* size of a m_buf cluster */
-#define MSGBUFSIZE NBPG
+#if !defined (MSGBUFSIZE) /* options MSGBUFSIZE=integer */
+#define MSGBUFSIZE 4 * NBPG
+#else
+#if INTSTACK - MSGBUF_VA - MSGBUFSIZE < 0
+#error MSGBUFSIZE is too large
+#endif
+#endif
/*
* Minimum size of the kernel kmem_arena in PAGE_SIZE-sized
--- src/sys/arch/sparc64/sparc64/pmap.c.dist 2014-01-09 22:29:26.000000000 +0000
+++ src/sys/arch/sparc64/sparc64/pmap.c 2014-03-26 20:57:29.000000000 +0000
@@ -741,8 +741,7 @@
* Get hold or the message buffer.
*/
msgbufp = (struct kern_msgbuf *)(vaddr_t)MSGBUF_VA;
-/* XXXXX -- increase msgbufsiz for uvmhist printing */
- msgbufsiz = 4*PAGE_SIZE /* round_page(sizeof(struct msgbuf)) */;
+ msgbufsiz = MSGBUFSIZE /* round_page(sizeof(struct msgbuf)) */;
BDPRINTF(PDB_BOOT, ("Trying to allocate msgbuf at %lx, size %lx\n",
(long)msgbufp, (long)msgbufsiz));
if ((long)msgbufp !=