Subject: Re: sparc classic woes with -current
To: Erik E. Fair <fair@clock.org>
From: Matt Ragan <mragan@tivoli.tivoli.com>
List: port-sparc
Date: 02/27/1997 15:11:52
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Erik E. Fair wrote:
>
>I've got a sparc classic with 48 MB of RAM, an FSBE/S, two disks (both on
>the internal controller; I don't entirely trust the driver just yet) and a
>Sony CD-ROM drive on it. I intend for this system to replace my poor old
>Sun 4/330 that runs SunOS 4.1.4 in production (which has an intermittently
>bad SIMM; that's what has been giving me "data fault" panics on that beast
>lately).
>
>When I run 1.2, the classic is stable (though the FSBE/S doesn't work).
>However, every time I've tried -current so far, I've had odd troubles,
>mostly with bad data showing up in files, sometimes consistently, sometimes
>transient. This leads to compiles that go bang with trash input, or even
>the compiler (or the loader) itself dying oddly (SIGSEGV).
>
>I wish I could put my finger on the instability. It smells like some kind
>of cache, vm or disk driver problem (maybe the -current disk driver hates
>my old 2G Seagate disk?). I just FTP'd down that netstat-curses thing to
>try, and cc1 died with a SIGILL when I tried "make". I'm almost tempted to
>run "tripwire" on the source tree.

I have the exact same problem with a SS5 running -current.  I posted a note
about this about a week ago, but it never seemed to make it to the list.

It appears that any writes to a UFS filesystem may become corrupted under
- -current as of about a week or so ago.  NFS access works fine, but as soon
as you try to write it to a UFS/FFS file, it has the possibility of corrupting.
I was able to create a corrupted file about 2 out of 3 times (according
to 'md5' and 'cksum') with most files.  I didn't investigate to find where 
the corruption was, as my system was getting very unstable.  Running 1.2, 
the problem does not exist.

I originally thought that I might have a bad disk, but putting on a different
disk on a different SS5 showed the same problems.

- -- 
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Matt Ragan           Corporate Information Technology       Tivoli Systems
Network Administrator                                       (512) 436-8821
9442 Capital of Texas Hwy, North                          Austin, TX 78759
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