File corruption: IDE hd problem or kernel problem ?

Riccardo Facchetti (fizban@tin.it)
Tue, 26 Aug 1997 20:50:58 +0200 (MET DST)


Hello,

I have downloaded the new release of communicator and at the end of
download (ftp) I've found that the tarball was corrupted (why ??? ... it
was an ftp connection !!!). Then I have splitted the tarball in 100k
pieces to find what piece was corrupted and then I've re-downloaded just
the corrupted one (thanks to an account of mine on an university machine).
I have extracted the tarball and I was installing it when the system
blocked. Not freezed because alt-sysreq was working. I have had the time
to see that the only runnable job was tar (I suppose an infinite loop into
the kernel) and then the system rebooted.

After the reboot and fsck, the communicator tarball was corrupted again
(the extraction is only a read operation so I suppose the tarball should
not be corrupted).

Then I tried to

tar cfv /u/tarball.tar /usr/src/linux/
cp /u/tarball.tar /u2/
diff /u/tarball.tar /u2/tarball.tar

and no diffs.

Then:

dd if=/dev/zero of=/u2/a1 bs=1048576 count=40
cp /u2/a1 /u/
diff /u/a1 /u2/a1

and no diffs.

mount:

/dev/hda2 on / type ext2 (rw)
none on /proc type proc (rw)
/dev/hdb1 on /usr type ext2 (rw)
/dev/hdb2 on /var type ext2 (rw)
/dev/hdb3 on /u type ext2 (rw)
/dev/hdc3 on /u2 type ext2 (rw)

kernel hdx msgs:

hda: QUANTUM LPS270A, ATA DISK drive
hdb: ST51080A, ATA DISK drive
hdc: ST32132A, ATA DISK drive
hdd: LTN106A, ATAPI CDROM drive

I can not explain this thing. Someone can ? (Mark ... the god of IDE ... ?)
May be my system don't like Netscape Communicator.

I will try again (and for the last time) to download the corrupted piece,
and install the tarball.

Ciao,
Riccardo.