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SubjectRe: What is the difference between 'login: root' and 'su -' ?
Mhhh,
the strace output from the 'login: root' one (the one which was good)
looks the same till the EFBIG place:

write(1, "\10\10\10\10\10", 5) = 5
write(1, "16/44", 5) = 5
_llseek(4, 18446744071562084352, [2147500032], SEEK_SET) = 0
write(4, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 32768) = 32768
_llseek(4, 18446744071562117120, [2147532800], SEEK_SET) = 0
write(4, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 32768) = 32768
_llseek(4, 18446744071562149888, [2147565568], SEEK_SET) = 0
write(4, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 32768) = 32768
_llseek(4, 18446744071562182656, [2147598336], SEEK_SET) = 0
write(4, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 32768) = 32768

Peter

On Wed, Nov 07, 2001 at 10:48:24PM +0200, Ville Herva wrote:
> On Wed, Nov 07, 2001 at 06:47:10PM +0100, you [Peter Seiderer] claimed:
> > Hello,
> > tried today to mkfs.ext2 a partition of my disk and detected there is
> > a little difference between 'login: root' and 'su -'.
> >
> > First I tried it this way:
> >
> > Welcome to SuSE Linux 7.0 (i386) - Kernel 2.4.14 (tty1).
> >
> > zodiak login: seiderer
> > Password:
> > seiderer@zodiak:~ > su -
> > Password:
> > zodiak:~ #
> > zodiak:~ # mkfs.ext2 /dev/hdc4
> > mke2fs 1.18, 11-Nov-1999 for EXT2 FS 0.5b, 95/08/09
> > Filesystem label=
> > OS type: Linux
> > Block size=4096 (log=2)
> > Fragment size=4096 (log=2)
> > 716672 inodes, 1432116 blocks
> > 71605 blocks (5.00%) reserved for the super user
> > First data block=0
> > 44 block groups
> > 32768 blocks per group, 32768 fragments per group
> > 16288 inodes per group
> > Superblock backups stored on blocks:
> > 32768, 98304, 163840, 229376, 294912, 819200, 884736
> >
> > Writing inode tables: 16/44File size limit exceeded
> >
> > strace showed that write returned wit EFBIG and the process ended with SIGXFSZ:
> >
> > write(1, "\10\10\10\10\10", 5) = 5
> > write(1, "16/44", 5) = 5
> > _llseek(4, 18446744071562084352, [2147500032], SEEK_SET) = 0
> > write(4, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 32768) = -1 EFBIG (File too large)
> > --- SIGXFSZ (File size limit exceeded) ---
> > +++ killed by SIGXFSZ +++
>
> Hmm, 18446744071562084352 = 0xffffffff80004000, 2147500032 = 0x80004000...
> It looks a tad like llseek's offset_high would have been corrupted...
> Strange.
>
> 1432116 blocks * 4096 bytes/block * 16/44 written = 2133071685.81818 so
> 2147500032 looks sane(ish).
>
>
> -- v --
>
> v@iki.fi

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