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List:       openbsd-vax
Subject:    Re: rsync failures - possible ulimit issues?
From:       "Jim MacKenzie" <jim () photojim ! ca>
Date:       2009-08-24 16:15:08
Message-ID: 24FAB1B55500432F8EFB654304086279 () JIMM
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----- Original Message ----- 
From: "Tobias Ulmer" <tobiasu@tmux.org>
To: "Jim MacKenzie" <jim@photojim.ca>
Cc: <vax@openbsd.org>
Sent: Saturday, August 22, 2009 3:28 AM
Subject: Re: rsync failures - possible ulimit issues?


> MAXDSIZ in /usr/src/sys/arch/vax/include/vmparam.h is limited to 32MB.
> You could try to increase that limit, either by editing the header or with
> a new kernel configuration.
> Of course all kinds of bad things may happen...

I tried exactly that (by editing the header and recompiling).

I invoked my rsync script and it worked... for a long time (much further 
than it did previously).  But I did eventually get a kernel panic.

My instinct at this point is to file a bug report for rsync, because it 
clearly does not work reliably with 32 MB of data space and obviously we 
have at least one platform that is limited to that amount.

My other instinct is to try a different kernel header setting (perhaps 48MB) 
and see if that is more reliable.

I was going to do a kernel build if rsync succeeded, to test the kernel 
reliability, but that is obviously of no benefit with my existing machine 
state.  :)

If you (or anyone else on the list) have any other suggestions of things I 
can try (both to help my situation and to provide useful information for the 
developers), please let me know.

Jim 

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