hello,
Currently I am trying to give write support to the UFS2 file system in linux
2.6.10 which is a native file system for FreeBSD operating system.Right now the
UFS2 has just read-only support in linux.
The current status is that i have been able to create the directories
successfully in linux partition with UFS2 mounted on it without the freebsd
partition getting corrupted.
So whenever i try to open a file or write sm data into it,the process
terminates out giving segmentation fault n this fault is sm divide by 0 error.
I have been able to trace out this error also,where does it come from.its the
following macro which uses s_spc which has 0 value right at the time of file
system getting registered.n hence the divide by 0 error occurs.
/* linux-2.6.10/include/linux/ufs_fs.h */
#define ufs_cbtocylno(bno) \
266 ((bno) * uspi->s_nspf / uspi->s_spc)
so here the uspi->s_spc which is sectors per cylinder has value zero..
Also one thing i noticed while tracing down all the parameters of the
superblock and cylinder group is that most of them have zero values assigned
right from the start when the file system is mounted on linux.
so wht can be done in regards to this problem??
n the other thing it that while opening a file or writing data into a file
wht care is to be taken or wht is the procedure??
Well i would also like to know wht is the exact disk layout of the UFS2 file
system..??
if anyone can give answers to the above questions ,it will be really helpful
for me..
thanking you in advance..
Rachana.
--
The only thing Constant is Change !!!
So try to be constant :-) \n\n",0] ); D(["ce"]); //-->
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