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Re: Hurd and UFS

From: Roland McGrath
Subject: Re: Hurd and UFS
Date: Sun, 2 Dec 2001 17:11:12 -0500 (EST)

Note that the ufs filesystem has not been used much at all in a long time
and has not gotten nearly as much real-world testing as ext2fs, so there
may be more bugs.

As to the uid of the root dir, that seems reasonable enough.  On the Hurd
it seems most sane to have mkfs.ufs do whatever mke2fs does, so I changed
it to match.

As to the SIGLOST crash, that is kind of strange.  That error is supposed
to indicate that the RPC server appeared to die, in this case the storeio
or filesystem.  But you might have noticed that, especially if it was just
the normal filesystem.  Can you ascertain whether storeio is dying?  (i.e.,
ls -l /dev/hd0s8, then find its storeio with ps, then get your SIGLOST and
check if that process died.)  If this happens when the server is not dying,
can you figure out what's going on?  First you can try "trap '' SIGLOST" to
ignore the signal and see if it just shows you an error from lseek.  You
can also get a libc.so.0.2 with debug symbols, go to the lseek frame and
see what made it decide to send the signal (or run it with a bkpt at


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