On Wednesday 28 January 2009 10:13:46 pm David Adam wrote:
> I upgraded my 7.0 system to 7.1-RELEASE with freebsd-update only to find
> that it no longer boots correctly, instead crashing with a BTX backtrace.
> If I break to the loader prompt and use 'ls /boot', I also get a
> backtrace.
>
> A new install of 7.1 on this hardware using a separate SCSI card and drive
> array also leads to a BTX backtrace. I have copied this below as the first
> (most repeatable) error and also included the other problems.
>
> A fresh install of 7.0 works fine. FreeSBIE 1.0, based on FreeBSD 5.3,
> also boots fine and will happily list the contents of the original drive's
> /boot in the loader, although refuses to load the kernel. The FreeBSD 7.1
> install CD also boots and allows me to install over FTP.
>
> I have run into BTX problems on this machine before under -CURRENT (see
> http://lists.freebsd.org/pipermail/freebsd-current/2008-October/089460.html
> ). Dmesg from 7.0 in
> http://www.freebsd.org/cgi/query-pr.cgi?prp=125769-1-txt&n=/patch.txt
>
> A new install of 7.1-RELEASE on separate disks leads to this backtrace:
> int=0000000d err=00001840 efl=00010207 eip=00000511
> eax=04551364 ebx=00000000 ecx=00495cae edx=00495cae
> esi=00000009 edi=00000001 ebp=00000000 esp=00495cae
> cs=002b ds=0033 es=0033 fs=0033 gs=0033 ss=0033
> cs:eip=17 00 00 00 00 00 00 0c-00 00 00 00 00 00 00 b9
> ae 5c 49 00 00 00 00 b9-ae 5c 49 00 00 00 00 c8
> ss:esp=43 18 3c 01 74 08 3c 04-0f 85 e4 00 00 00 0f b6
> 43 19 88 86 94 00 00 00-c7 46 30 00 00 00 00 3c
>
> BTX error on boot with the 7.0 partition that has been upgraded to 7.1:
>
> int=0000000d err=00000000 efl=00010a92 eip=00000430
> eax=ffffff4c ebx=00006c94 ecx=00000001 edx=00000080
> esi=00000001 edi=ffff9416 ebp=00000000 esp=0008f8b4
> cs=002b ds=0033 es=002b fs=0033 gs=0033 ss=0033
> cs:eip=6c 7f 94 48 00 00 00 00-0f af c1 47 00 00 00 00
> 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00
> ss:eip=2b 00 00 00 33 00 00 00-00 0c 04 00 5f ad 08 04
> 00 00 00 00 0f 00 00 00-00 00 00 00 24 1c 06 00
> BTX halted
>
> If I break to the loader prompt and try 'ls /boot', I get this backtrace:
>
> int=00000006 err=00000000 efl=00010203 eip=00040c08
> eax=000000c6 ebx=00000008 ecx=eb000000 edx=000000c6
> esi=00000004 edi=000000c2 ebp=00000000 esp=0008f8b4
> cs=002b ds=0033 es=002b fs=0033 gs=0033 ss=0033
> cs:eip=8f 49 40 00 94 49 00 cb-00 00 04 00 00 00 fc 07
> 80 00 00 00 04 00 00 00-94 49 00 00 00 00 00 00
> ss:eip=00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00
> 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00
> BTX halted
>
> Any thoughts or suggestions? I will stay on 7.0 for now but have a fairly
> large supply of spare drives so I can test new installs if required.
I wonder if your stack is growing into the heap (the GPT stuff made the
loader a bit bigger). You can try something like this:
--- //depot/vendor/freebsd/src/sys/boot/i386/libi386/Makefile 2007/10/12
17:12:19
+++ //depot/user/jhb/boot/sys/boot/i386/libi386/Makefile 2009/03/02
17:08:30
@@ -33,6 +33,10 @@
CFLAGS+= -DSMBIOS_SERIAL_NUMBERS
.endif
+.if !defined(LOADER_NO_GPT_SUPPORT)
+CFLAGS+= -DLOADER_GPT_SUPPORT
+.endif
+
# Include simple terminal emulation (cons25-compatible)
CFLAGS+= -DTERM_EMU
--- //depot/vendor/freebsd/src/sys/boot/i386/libi386/biosdisk.c 2008/11/19
16:05:14
+++ //depot/user/jhb/boot/sys/boot/i386/libi386/biosdisk.c 2009/03/02
17:08:30
@@ -68,12 +68,14 @@
# define DEBUG(fmt, args...)
#endif
+#ifdef LOADER_GPT_SUPPORT
struct gpt_part {
int gp_index;
uuid_t gp_type;
uint64_t gp_start;
uint64_t gp_end;
};
+#endif
struct open_disk {
int od_dkunit; /* disk unit number */
@@ -90,25 +92,31 @@
#define BD_FLOPPY 0x0004
#define BD_LABELOK 0x0008
#define BD_PARTTABOK 0x0010
+#ifdef LOADER_GPT_SUPPORT
#define BD_GPTOK 0x0020
+#endif
union {
struct {
struct disklabel mbr_disklabel;
int mbr_nslices; /* slice count */
struct dos_partition mbr_slicetab[NEXTDOSPART];
} _mbr;
+#ifdef LOADER_GPT_SUPPORT
struct {
int gpt_nparts;
struct gpt_part *gpt_partitions;
} _gpt;
+#endif
} _data;
};
#define od_disklabel _data._mbr.mbr_disklabel
#define od_nslices _data._mbr.mbr_nslices
#define od_slicetab _data._mbr.mbr_slicetab
+#ifdef LOADER_GPT_SUPPORT
#define od_nparts _data._gpt.gpt_nparts
#define od_partitions _data._gpt.gpt_partitions
+#endif
/*
* List of BIOS devices, translation from disk unit number to
@@ -130,8 +138,10 @@
static int bd_int13probe(struct bdinfo *bd);
+#ifdef LOADER_GPT_SUPPORT
static void bd_printgptpart(struct open_disk *od, struct gpt_part *gp,
char *prefix, int verbose);
+#endif
static void bd_printslice(struct open_disk *od, struct dos_partition *dp,
char *prefix, int verbose);
static void bd_printbsdslice(struct open_disk *od, daddr_t offset,
@@ -163,8 +173,10 @@
static int bd_open_mbr(struct open_disk *od, struct i386_devdesc *dev);
static int bd_bestslice(struct open_disk *od);
static void bd_checkextended(struct open_disk *od, int slicenum);
+#ifdef LOADER_GPT_SUPPORT
static int bd_open_gpt(struct open_disk *od, struct i386_devdesc *dev);
static struct gpt_part *bd_best_gptpart(struct open_disk *od);
+#endif
/*
* Translate between BIOS device numbers and our private unit numbers.
@@ -286,6 +298,7 @@
if (!bd_opendisk(&od, &dev)) {
+#ifdef LOADER_GPT_SUPPORT
/* Do we have a GPT table? */
if (od->od_flags & BD_GPTOK) {
for (j = 0; j < od->od_nparts; j++) {
@@ -293,9 +306,10 @@
od->od_partitions[j].gp_index);
bd_printgptpart(od, &od->od_partitions[j], line, verbose);
}
-
+ } else
+#endif
/* Do we have a partition table? */
- } else if (od->od_flags & BD_PARTTABOK) {
+ if (od->od_flags & BD_PARTTABOK) {
dptr = &od->od_slicetab[0];
/* Check for a "dedicated" disk */
@@ -339,6 +353,7 @@
return (buf);
}
+#ifdef LOADER_GPT_SUPPORT
static uuid_t efi = GPT_ENT_TYPE_EFI;
static uuid_t freebsd_boot = GPT_ENT_TYPE_FREEBSD_BOOT;
static uuid_t freebsd_ufs = GPT_ENT_TYPE_FREEBSD_UFS;
@@ -380,6 +395,7 @@
stats);
pager_output(line);
}
+#endif
/*
* Print information about slices on a disk. For the size calculations we
@@ -561,8 +577,10 @@
}
/* Determine disk layout. */
+#ifdef LOADER_GPT_SUPPORT
error = bd_open_gpt(od, dev);
if (error)
+#endif
error = bd_open_mbr(od, dev);
out:
@@ -826,6 +844,7 @@
return (prefslice);
}
+#ifdef LOADER_GPT_SUPPORT
static int
bd_open_gpt(struct open_disk *od, struct i386_devdesc *dev)
{
@@ -1003,6 +1022,7 @@
}
return (prefpart);
}
+#endif
static int
bd_close(struct open_file *f)
@@ -1022,8 +1042,10 @@
if (od->od_flags & BD_FLOPPY)
delay(3000000);
#endif
+#ifdef LOADER_GPT_SUPPORT
if (od->od_flags & BD_GPTOK)
free(od->od_partitions);
+#endif
free(od);
}
--- //depot/vendor/freebsd/src/sys/boot/i386/libi386/devicename.c
2008/11/17 20:55:47
+++ //depot/user/jhb/boot/sys/boot/i386/libi386/devicename.c 2009/03/02
17:08:30
@@ -120,6 +120,7 @@
err = EUNIT;
goto fail;
}
+#ifdef LOADER_GPT_SUPPORT
if (*cp == 'p') { /* got a GPT partition */
np = cp + 1;
slice = strtol(np, &cp, 10);
@@ -133,6 +134,7 @@
}
partition = 0xff;
} else {
+#endif
if (*cp == 's') { /* got a slice number */
np = cp + 1;
slice = strtol(np, &cp, 10);
@@ -149,7 +151,9 @@
}
cp++;
}
+#ifdef LOADER_GPT_SUPPORT
}
+#endif
} else {
cp = np;
}
@@ -227,14 +231,18 @@
case DEVT_DISK:
cp = buf;
cp += sprintf(cp, "%s%d", dev->d_dev->dv_name, dev->d_unit);
+#ifdef LOADER_GPT_SUPPORT
if (dev->d_kind.biosdisk.partition == 0xff) {
cp += sprintf(cp, "p%d", dev->d_kind.biosdisk.slice);
} else {
+#endif
if (dev->d_kind.biosdisk.slice > 0)
cp += sprintf(cp, "s%d", dev->d_kind.biosdisk.slice);
if (dev->d_kind.biosdisk.partition >= 0)
cp += sprintf(cp, "%c", dev->d_kind.biosdisk.partition + 'a');
+#ifdef LOADER_GPT_SUPPORT
}
+#endif
strcat(cp, ":");
break;
--- //depot/vendor/freebsd/src/sys/boot/i386/loader/Makefile 2009/02/21
15:10:32
+++ //depot/user/jhb/boot/sys/boot/i386/loader/Makefile 2009/03/02 17:08:30
@@ -51,6 +51,9 @@
.if !defined(LOADER_NO_GZIP_SUPPORT)
CFLAGS+= -DLOADER_GZIP_SUPPORT
.endif
+.if !defined(LOADER_NO_GPT_SUPPORT)
+CFLAGS+= -DLOADER_GPT_SUPPORT
+.endif
# Always add MI sources
.PATH: ${.CURDIR}/../../common
@@ -91,12 +94,14 @@
loader.help: help.common help.i386
cat ${.ALLSRC} | awk -f ${.CURDIR}/../../common/merge_help.awk >
${.TARGET}
+.if !defined(NOFORTH)
.PATH: ${.CURDIR}/../../forth
FILES= loader loader.help loader.4th support.4th loader.conf
FILES+= screen.4th frames.4th beastie.4th
# XXX INSTALLFLAGS_loader= -b
FILESMODE_loader= ${BINMODE} -b
FILESDIR_loader.conf= /boot/defaults
+.endif
.if !exists(${DESTDIR}/boot/loader.rc)
FILES+= loader.rc
--- //depot/vendor/freebsd/src/sys/boot/i386/loader/main.c 2008/11/17
20:55:47
+++ //depot/user/jhb/boot/sys/boot/i386/loader/main.c 2009/03/02 17:08:30
@@ -102,7 +102,7 @@
*/
bios_getmem();
-#if defined(LOADER_BZIP2_SUPPORT) || defined(LOADER_FIREWIRE_SUPPORT) ||
defined(LOADER_ZFS_SUPPORT)
+#if defined(LOADER_BZIP2_SUPPORT) || defined(LOADER_FIREWIRE_SUPPORT) ||
defined(LOADER_GPT_SUPPORT) || defined(LOADER_ZFS_SUPPORT)
heap_top = PTOV(memtop_copyin);
memtop_copyin -= 0x300000;
heap_bottom = PTOV(memtop_copyin);
--
John Baldwin
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