parted-1.6.9 division by zero on _device_get_length

[Christian Ehrlicher]

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Hello

I just tried to compile qtparted and got an division by zero exception
on startup. after some investigation I've found the problem in
_device_get_length:

(gdb) r
Starting program: /usr/sbin/parted

Program received signal SIGFPE, Arithmetic exception.
0x40063a27 in __udivdi3 (n=0, d=1) at ../../gcc/libgcc2.c:551
551     ../../gcc/libgcc2.c: Datei oder Verzeichnis nicht gefunden.
~        in ../../gcc/libgcc2.c
(gdb) bt
#0  0x40063a27 in __udivdi3 (n=0, d=1) at ../../gcc/libgcc2.c:551
#1  0x4004d5e7 in _device_get_length (dev=0x8066070) at linux.c:408
#2  0x4004d67f in _device_probe_geometry (dev=0x8066070) at linux.c:436
#3  0x4004d9d5 in init_ide (dev=0x8066070) at linux.c:529
#4  0x4004e0be in linux_new (path=0x8065068 "/dev/hdc") at linux.c:791
#5  0x40035a81 in ped_device_get (path=0x0) at device.c:157
#6  0x4003594e in _ped_device_probe (path=0x40068558 "/dev/hdc") at
device.c:113
#7  0x4004f24f in _probe_standard_devices () at linux.c:1410
#8  0x4003598f in ped_device_probe_all () at device.c:122
#9  0x0804d9bc in _choose_device (argc_ptr=0xbffff1f0,
argv_ptr=0xbffff1f4) at parted.c:1547
#10 0x0804da4c in _init (argc_ptr=0xbffff1f0, argv_ptr=0xbffff1f4) at
parted.c:1582
#11 0x0804db57 in main (argc=0, argv=0xbffff238) at parted.c:1634
(gdb) up
#1  0x4004d5e7 in _device_get_length (dev=0x8066070) at linux.c:408
408                             return bytes / _device_get_sector_size(dev);
(gdb) p *dev
$3 = {next = 0xffffffff, model = 0x806f3e0 "_NEC DVD_RW ND-1300A", path
= 0x80660c0 "/dev/hdc", type = PED_DEVICE_IDE, sector_size = -1,
~  length = -1, open_count = 1, read_only = 1, external_mode = 0, dirty =
0, boot_dirty = 0, heads = -1, sectors = -1, cylinders = -1,
~  geom_known = 1, geom_already_guessed = 0, host = -1, did = -1,
arch_specific = 0x80660d0}


As you can see the sector size is -1 but a
(gdb) p _device_get_sector_size(dev)
$2 = 0

gives back 0 which causes the division by zero.

Hope you get this fixed soon :-)

System: SuSE 9.0 / gcc 3.3.1


- --
MfG
Christian Ehrlicher

==============================================================================
Christian Ehrlicher                            mailto:address@hidden
deneg GmbH                                     Phone : +49 421 2043 282
Kurfürstenallee 130                            Fax   : +49 421 2043 120
D 28211 Bremen                                 http://www.deneg.de/
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