Hi,
I had a segfault with xfs_db compiled from xfsprogs-1.3.5.src.tar.gz.
Kernel 2.4.9, Redhat-7.1
The segfault happens when I run the command "freesp -d -s" with "xfs_db -x
/dev/hdc5".
This partition was formatted by mkfs.xfs. This is a 14.16 GB partition,
with 5.34 GB used.
duron750:/home/dupoux# xfs_db -x /dev/hdc5
xfs_db: freesp -d -s
0 43730 1
0 43731 1
0 43732 1
0 43733 1
0 43734 1
0 43735 1
Segmentation fault (core dumped)
--------------- gdb /sbin/xfs_db core -------------------
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This GDB was configured as "i386-redhat-linux"...
Core was generated by `xfs_db -x /dev/hdc5'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /lib/i686/libc.so.6...done.
Loaded symbols for /lib/i686/libc.so.6
Reading symbols from /lib/ld-linux.so.2...done.
Loaded symbols for /lib/ld-linux.so.2
#0 scanfunc_bno (ablock=0x0, typ=TYP_BNOBT, level=0, agf=0x80ab5e0) at
/usr/include/linux/byteorder/swab.h:132
132 {
--------------------------------------------------------
------------ informations about /dev/hdc5 -------------
Block size....................4096 bytes
Total blocks count............3710999
Used blocks count.............1400933
Free blocks count.............2310066
Space usage:..................37 %
Total space:..................14.16 GB
Used space....................5.34 GB
Free space....................8.81 GB
Bitmap size...................453.00 KB
Allocation Group count:.......15
Blocks per Allocation Group...262144
Allocation Group size:........1.00 GB
--------------------------------------------------------
You can download the core file from http://www.partimage.org/misc/core.gz
It seems that the "freelist" is working, and it segfault at beginning of
reading
the btree (the BNO one).
Here is the beginning of the result I d'like to obtain:
---------------------------------------------------------
addToHist: 0 43730 1
addToHist: 0 43731 1
addToHist: 0 43732 1
addToHist: 0 43733 1
addToHist: 0 43734 1
addToHist: 0 43735 1
addToHist: 0 12 1
addToHist: 0 54 247
addToHist: 0 325 89
addToHist: 0 566 25
addToHist: 0 628 821
addToHist: 0 1465 11
addToHist: 0 1813 159
addToHist: 0 1976 1
......
---------------------------------------------------------
The partition was very fragmented. There is no problem when reading files
from the mount point. (I am using the patch XFS-2001-08-19 for 2.4.9). Here
is how
I made this 14 GB partition:
mkfs.xfs /dev/hdc5
mount /dev/hdc5 /mnt/ess
cd /mnt/ess
createdata -d6 .
mv a r
mv b s
createdata -d6 .
umount /mnt/ess
createdata is a small program which creates a lot of files of a random size,
with random data. It
fills the partition. When there is no space left, it erases a lot of files
(it keeps 1 file for 6 files
when the option -d6 is used). It's very useful to make a fragmented file
system. You can download the source
code on http://www.partimage.org/misc/createdata.cpp.
I already had the same problem, after formatting and filling this partition
with the same method (other random files)
thanks
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