Date: Thu, 21 Oct 2004 16:36:59 +0400 (MSD) From: Andrew Belashov <bel@orel.ru> To: FreeBSD-gnats-submit@FreeBSD.org Subject: sparc64/72962: [sysinstall] Sysinstall panics on sparc64 if /dev/cd0 present Message-ID: <200410211236.i9LCax5Z076485@white.orel.ru> Resent-Message-ID: <200410211240.i9LCeSOJ044717@freefall.freebsd.org>
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>Number: 72962
>Category: sparc64
>Synopsis: [sysinstall] Sysinstall panics on sparc64 if /dev/cd0 present
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-sparc64
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Thu Oct 21 12:40:28 GMT 2004
>Closed-Date:
>Last-Modified:
>Originator: Andrew Belashov
>Release: FreeBSD 5.3-BETA7 sparc64
>Organization:
JSC CenterTelecom
>Environment:
System: FreeBSD bel.localdomain 5.3-BETA7 FreeBSD 5.3-BETA7 #11: Thu Oct 14
13:02:53 MSD 2004 bel@bel.localdomain:/usr/obj/usr/src/sys/SUNC3D sparc64
$ dmesg|grep cd
cd0 at sym0 bus 0 target 6 lun 0
cd0: <TOSHIBA DVD-ROM SD-M1401 1009> Removable CD-ROM SCSI-2 device
cd0: 20.000MB/s transfers (20.000MHz, offset 16)
cd0: Attempt to query device size failed: NOT READY, Medium not present
>Description:
On sparc64 systems sysinstall panics after "Probing devices, please
wait (this can take a while)...":
Floating point exception (core dumped)
>How-To-Repeat:
# gdb53 /usr/obj/usr/src/usr.sbin/sysinstall/sysinstall
GNU gdb 5.3 (FreeBSD)
[...]
This GDB was configured as "sparc64-portbld-freebsd5.2"...
(gdb) run
Program received signal SIGFPE, Arithmetic exception.
0x00000000001241f4 in Int_Open_Disk (name=0x2a4350 "cd0", conftxt=0x276a1c "0")
at /usr/src/lib/libdisk/open_disk.c:270
270 o = d->chunks->size / (hd * sc);
(gdb) l
265 /* PLATFORM POLICY BEGIN ------------------------------------- */
266 /* We have a chance to do things on a blank disk here */
267 if (platform == p_sparc64 && d->chunks->part->part == NULL) {
268 hd = d->bios_hd;
269 sc = d->bios_sect;
270 o = d->chunks->size / (hd * sc);
271 o *= (hd * sc);
272 o -= 2 * hd * sc;
273 if (Add_Chunk(d, 0, o, name, freebsd, 0, 0, "-")) {
274 DPRINT(("Failed to add 'freebsd' chunk"));
(gdb) p hd
$1 = 0
(gdb) p sc
$2 = 0
(gdb) p d[0]
$3 = {name = 0x2a4360 "cd0", bios_cyl = 0, bios_hd = 0, bios_sect = 0,
bootmgr = 0x0, bootmgr_size = 0, boot1 = 0x0, chunks = 0x29c200,
sector_size = 512}
>Fix:
It is necessary to fix libdisk(3).
--- libdisk.patch begins here ---
--- lib/libdisk/open_disk.c.orig Tue Oct 12 16:02:58 2004
+++ lib/libdisk/open_disk.c Thu Oct 21 16:19:40 2004
@@ -267,6 +267,8 @@ Int_Open_Disk(const char *name, char *co
if (platform == p_sparc64 && d->chunks->part->part == NULL) {
hd = d->bios_hd;
sc = d->bios_sect;
+ if ((hd * sc) == 0)
+ return (NULL);
o = d->chunks->size / (hd * sc);
o *= (hd * sc);
o -= 2 * hd * sc;
--- libdisk.patch ends here ---
>Release-Note:
>Audit-Trail:
>Unformatted:
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