[Ocfs2-users] Floating Point Exception
Sunil Mushran
Sunil.Mushran at oracle.com
Tue May 16 17:37:31 CDT 2006
So the exception is generated when mkfs is computing the size of the device.
It could be due to an unexpected value returned by one of the ioctls.
Try this:
# cd /../ocfs2-tools-1.2.1
# ./configure --enable-debug
# make all
# cd mkfs.ocfs2
# gdb ./mkfs.ocfs2
(gdb) set args -b 4K -C 32K -N 4 -L mail_data /dev/etherd/e0.12p1
(gdb) b ocfs2_get_device_sectsize
(gdb) b ocfs2_get_device_size
Set break point at ocfs2_get_device_sectsize() and ocfs2_get_device_size()
and run. See what the sectsize is. Then step thru the code in
get_device_size.
If this is too much, at least generate the coredump and make it available
for download.
Please let me know the results.
Thanks
Sunil
Jeffery P. Humes wrote:
> Here is the output of an ltrace.
> Please note that this is trying to create a partition on a Coraid AOE
> device.
>
> -JPH
>
> # ltrace mkfs.ocfs2 -v -b 4K -C 32K -N 4 -L mail_data /dev/etherd/e0.12p1
>
> __libc_start_main(0x804993d, 11, 0xbfa86b24, 0x805f1bc, 0x805f218
> <unfinished ...>
> setbuf(0x8805e0,
> NULL) = <void>
> setbuf(0x880480,
> NULL) = <void>
> signal(15,
> 0x8049875) = NULL
> signal(2,
> 0x8049875) = NULL
> malloc(8)
> = 0x85de008
> malloc(8)
> = 0x85de018
> malloc(8)
> = 0x85de028
> __xpg_basename(0xbfa87be4, 135168, 0, 0,
> 0x757fb4) = 0xbfa87be4
> getopt_long(11, 0xbfa86b24, "b:C:L:N:J:vqVFHxT:", 0x80635e0,
> NULL) = 118
> getopt_long(11, 0xbfa86b24, "b:C:L:N:J:vqVFHxT:", 0x80635e0,
> NULL) = 98
> strtoull(0xbfa87bf5, 0xbfa863cc, 0, 0,
> 0) = 4
> getopt_long(11, 0xbfa86b24, "b:C:L:N:J:vqVFHxT:", 0x80635e0,
> NULL) = 67
> strtoull(0xbfa87bfb, 0xbfa863cc, 0, 0,
> 0) = 32
> getopt_long(11, 0xbfa86b24, "b:C:L:N:J:vqVFHxT:", 0x80635e0,
> NULL) = 78
> strtoul(0xbfa87c02, 0xbfa86440, 0, 0,
> 0x757fb4) = 4
> getopt_long(11, 0xbfa86b24, "b:C:L:N:J:vqVFHxT:", 0x80635e0,
> NULL) = 76
> strdup("mail_data")
> = 0x85de038
> getopt_long(11, 0xbfa86b24, "b:C:L:N:J:vqVFHxT:", 0x80635e0,
> NULL) = -1
> malloc(148)
> = 0x85de048
> memset(0x85de048, '\000',
> 148) = 0x85de048
> fprintf(0x880480, "%s %s\n", "mkfs.ocfs2", "1.2.1"mkfs.ocfs2 1.2.1
> ) = 17
> strdup("/dev/etherd/e0.12p1")
> = 0x85de0e0
> time(NULL)
> = 1147812553
> __xstat(3, "/dev/etherd/e0.12p1",
> 0xbfa85f40) = 0
> fopen("/proc/swaps",
> "r") = 0x85de0f8
> fgets("Filename\t\t\t\tType\t\tSize\tUsed\tPrio"..., 1024,
> 0x85de0f8) = 0xbfa85f98
> feof(0x85de0f8)
> = 0
> fgets("/dev/mapper/VolGroup00-LogVol00 "..., 1024,
> 0x85de0f8) = 0xbfa85f98
> strchr("/dev/mapper/VolGroup00-LogVol00 "..., '
> ') = " partition\t3047416\t88\t-1"...
> strchr("/dev/mapper/VolGroup00-LogVol00",
> '\t') = NULL
> strcmp("/dev/mapper/VolGroup00-LogVol00",
> "/dev/etherd/e0.12p1") = 1
> __xstat(3, "/dev/mapper/VolGroup00-LogVol00",
> 0xbfa85f40) = 0
> feof(0x85de0f8)
> = 0
> fgets("/dev/mapper/VolGroup00-LogVol00", 1024,
> 0x85de0f8) = NULL
> fclose(0x85de0f8)
> = 0
> setmntent("/proc/mounts",
> "r") = 0x85de0f8
> __xstat(3, "/dev/etherd/e0.12p1",
> 0xbfa862f0) = 0
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "rootfs") = -1
> __xstat(3, "rootfs",
> 0xbfa862f0) = -1
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "/dev") = 1
> __xstat(3, "/dev",
> 0xbfa862f0) = 0
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "/dev/root") = -1
> __xstat(3, "/dev/root",
> 0xbfa862f0) = 0
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "/proc") = -1
> __xstat(3, "/proc",
> 0xbfa862f0) = 0
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "/proc/bus/usb") = -1
> __xstat(3, "/proc/bus/usb",
> 0xbfa862f0) = 0
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "/sys") = -1
> __xstat(3, "/sys",
> 0xbfa862f0) = 0
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "/dev/devpts") = 1
> __xstat(3, "/dev/devpts",
> 0xbfa862f0) = -1
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "/dev/sda1") = -1
> __xstat(3, "/dev/sda1",
> 0xbfa862f0) = 0
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "/dev/shm") = -1
> __xstat(3, "/dev/shm",
> 0xbfa862f0) = 0
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "none") = -1
> __xstat(3, "none",
> 0xbfa862f0) = -1
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "sunrpc") = -1
> __xstat(3, "sunrpc",
> 0xbfa862f0) = -1
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "configfs") = -1
> __xstat(3, "configfs",
> 0xbfa862f0) = -1
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "ocfs2_dlmfs") = -1
> __xstat(3, "ocfs2_dlmfs",
> 0xbfa862f0) = -1
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "automount(pid2223)") = -1
> __xstat(3, "automount(pid2223)",
> 0xbfa862f0) = -1
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "/dev/etherd/e0.11p1") = 1
> __xstat(3, "/dev/etherd/e0.11p1",
> 0xbfa862f0) = 0
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "/dev/BaculaVG/BaculaDataLV_1") = 1
> __xstat(3, "/dev/BaculaVG/BaculaDataLV_1",
> 0xbfa862f0) = 0
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "/dev/BackupDataVG/BackupDataLV_1") = 1
> __xstat(3, "/dev/BackupDataVG/BackupDataLV_1",
> 0xbfa862f0) = 0
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "nfsd") = -1
> __xstat(3, "nfsd",
> 0xbfa862f0) = -1
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "knfiler:/vol/vol0") = -1
> __xstat(3, "knfiler:/vol/vol0",
> 0xbfa862f0) = -1
> getmntent(0x85de0f8)
> = NULL
> __xstat(3, "/",
> 0xbfa862f0) = 0
> endmntent(0x85de0f8)
> = 1
> setmntent("/etc/mtab",
> "r") = 0x85de0f8
> __xstat(3, "/dev/etherd/e0.12p1",
> 0xbfa862f0) = 0
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "/dev/mapper/VolGroup00-LogVol01") = -1
> __xstat(3, "/dev/mapper/VolGroup00-LogVol01",
> 0xbfa862f0) = 0
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "/dev/proc") = -1
> __xstat(3, "/dev/proc",
> 0xbfa862f0) = -1
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "/dev/sys") = -1
> __xstat(3, "/dev/sys",
> 0xbfa862f0) = -1
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "/dev/devpts") = 1
> __xstat(3, "/dev/devpts",
> 0xbfa862f0) = -1
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "/dev/sda1") = -1
> __xstat(3, "/dev/sda1",
> 0xbfa862f0) = 0
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "/dev/shm") = -1
> __xstat(3, "/dev/shm",
> 0xbfa862f0) = 0
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "none") = -1
> __xstat(3, "none",
> 0xbfa862f0) = -1
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "sunrpc") = -1
> __xstat(3, "sunrpc",
> 0xbfa862f0) = -1
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "configfs") = -1
> __xstat(3, "configfs",
> 0xbfa862f0) = -1
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "ocfs2_dlmfs") = -1
> __xstat(3, "ocfs2_dlmfs",
> 0xbfa862f0) = -1
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "automount(pid2223)") = -1
> __xstat(3, "automount(pid2223)",
> 0xbfa862f0) = -1
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "/dev/etherd/e0.11p1") = 1
> __xstat(3, "/dev/etherd/e0.11p1",
> 0xbfa862f0) = 0
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "/dev/mapper/BaculaVG-BaculaDataL"...) = -1
> __xstat(3, "/dev/mapper/BaculaVG-BaculaDataL"...,
> 0xbfa862f0) = 0
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "/dev/mapper/BackupDataVG-BackupD"...) = -1
> __xstat(3, "/dev/mapper/BackupDataVG-BackupD"...,
> 0xbfa862f0) = 0
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "nfsd") = -1
> __xstat(3, "nfsd",
> 0xbfa862f0) = -1
> getmntent(0x85de0f8)
> = 0x8821e0
> strcmp("/dev/etherd/e0.12p1",
> "knfiler:/vol/vol0") = -1
> __xstat(3, "knfiler:/vol/vol0",
> 0xbfa862f0) = -1
> getmntent(0x85de0f8)
> = NULL
> __xstat(3, "/",
> 0xbfa862f0) = 0
> endmntent(0x85de0f8)
> = 1
> __xstat(3, "/dev/etherd/e0.12p1",
> 0xbfa863d4) = 0
> open("/dev/etherd/e0.12p1", 128,
> 00) = 3
> close(3)
> = 0
> malloc(132)
> = 0x85de0f8
> malloc(20)
> = 0x85de180
> malloc(20)
> = 0x85de198
> strcpy(0x85de198,
> "/dev/etherd/e0.12p1") = 0x85de198
> open64("/dev/etherd/e0.12p1", 16386,
> 036706623) = 3
> posix_memalign(0xbfa861b8, 512, 512, 0x8057284,
> 20) = 0
> pread64(3, 0x85df400, 512, 0,
> 0) = 512
> free(0x85df400)
> = <void>
> uname(0xbfa86206)
> = 0
> malloc(20)
> = 0x85de1b0
> strcpy(0x85de1b0,
> "/dev/etherd/e0.12p1") = 0x85de1b0
> posix_memalign(0xbfa863e0, 512, 512, 0x8057284,
> 0) = 0
> pread64(3, 0x85df400, 512, 0,
> 0) = 512
> free(0x85df400)
> = <void>
> posix_memalign(0xbfa863e0, 512, 512, 0x8057284,
> 0x85df409) = 0
> pread64(3, 0x85df400, 512, 1024,
> 0) = 0
> free(0x85df400)
> = <void>
> free(0x85de1b0)
> = <void>
> close(3)
> = 0
> free(0x85de198)
> = <void>
> free(0x85de180)
> = <void>
> free(0x85de0f8)
> = <void>
> open64("/dev/etherd/e0.12p1", 16386,
> 027752076021) = 3
> getpagesize()
> = 4096
> open64("/dev/etherd/e0.12p1", 0,
> 01001105565) = 4
> ioctl(4, 4712,
> 0xbfa86450) = 0
> close(4)
> = 0
> open64("/dev/etherd/e0.12p1", 0,
> 01027372000) = 4
> uname(0xbfa8621e)
> = 0
> ioctl(4, -2147216782,
> 0xbfa86210) = 0
> close(4)
> = 0
> --- SIGFPE (Floating point exception) ---
> +++ killed by SIGFPE +++
>
> Sunil Mushran wrote:
>> Did you try strace or ltrace?
>>
>> Jeffery P. Humes wrote:
>>> I have a Fedora Core server running:
>>> Fedora Core release 4 (Stentz)
>>> kernel version: 2.6.15-1.1833_FC4smp
>>> ( I have also tried kernel version: 2.6.16-1.2108_FC4smp)
>>>
>>> I compiled the ocfs2 and ocfs2-tools using the following steps:
>>>
>>> # MODULES:
>>> tar zxvpf ocfs2-1.2.1.tar.gz
>>> cd ocfs2-1.2.1
>>> ./configure
>>> make
>>> make install
>>>
>>> # TOOLS:
>>> tar zxf ocfs2-tools-1.2.1.tar.gz
>>> cd ocfs2-tools-1.2.1
>>> ./configure --enable-dynamic-fsck=yes --enable-dynamic-ctl=yes
>>> --enable-ocfs2console=yes
>>> make
>>> make install
>>>
>>> cp vendor/common/ocfs2.init /etc/init.d/ocfs2
>>> cp vendor/common/o2cb.init /etc/init.d/o2cb
>>> cp vendor/common/o2cb.sysconfig /etc/sysconfig/o2cb
>>>
>>>
>>> I have the cluster.conf configured and the cluster is running.
>>>
>>>
>>>
>>> Whenever I try to create an ocfs2 FS, I get the following error:
>>> # mkfs.ocfs2 -v -b 4K -C 32K -N 4 -L mail_data /dev/etherd/e0.12p1
>>> mkfs.ocfs2 1.2.1
>>> Floating point exception
>>>
>>>
>>> any comments or assistance would be appreciated.
>>>
>>> -Jeffery P Humes
>>>
>>>
>>>
>>> ------------------------------------------------------------------------
>>>
>>>
>>> _______________________________________________
>>> Ocfs2-users mailing list
>>> Ocfs2-users at oss.oracle.com
>>> http://oss.oracle.com/mailman/listinfo/ocfs2-users
>>>
>
> --
> It's a trick, get an axe.
> - Ash -
>
More information about the Ocfs2-users
mailing list