Date: Sun, 19 Feb 2012 19:46:42 -0500 (EST) From: Rick Macklem <rmacklem@uoguelph.ca> To: Jeremie Le Hen <jeremie@le-hen.org> Cc: freebsd-stable@FreeBSD.org Subject: Re: "File too large" error when appending to a file of 130 MB Message-ID: <1984136644.1631414.1329698802016.JavaMail.root@erie.cs.uoguelph.ca> In-Reply-To: <20120219213607.GO31770@felucia.tataz.chchile.org>
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Jeremie Le Hen wrote:
> Hi list,
>
> Can you please Cc: me when replying as I'm not subscribed, thanks.
>
> I have a problem with procmail which gets a "File too large" error
> when
> it tries to write at the end of some mailbox file.
>
> I truss'ed it and I found the following:
>
> % stat("/home/jlh/Mail//mbox1",{ mode=-rw-------
> ,inode=336983,size=138744672,blksize=131072 }) = 0 (0x0)
> % open("/home/jlh/Mail//mbox1",O_WRONLY|O_APPEND|O_CREAT,0667) = 5
> (0x5)
> % lseek(5,0x0,SEEK_END) = 138744672 (0x8451360)
> % wait4(0xffffffff,0x0,0x1,0x0,0x3,0x5) ERR#10 'No child processes'
> % lseek(5,0x0,SEEK_CUR) = 138744672 (0x8451360)
> % fcntl(5,F_SETLKW,0xffffd9a4) = 0 (0x0)
> % lseek(5,0x0,SEEK_END) = 138744672 (0x8451360)
> % write(5,"F",1) ERR#27 'File too large'
> % fstat(5,{ mode=-rw-------
> ,inode=336983,size=138744672,blksize=131072 }) = 0 (0x0)
> % write(5,"rom lionel.messien+caf_=jlh=chch"...,3627) ERR#27 'File too
> large'
>
> I can append something to the file manually. I wonder if the error
> doesn't come from the SETLKW fnctl(2) call, but I cannot experiment it
> because truss(1) doesn't show the content of the flock structure.
>
> If I change the procmail recipe to write to another file (which
> doesn't
> exist), the file is successfully created and messages can be appended.
> I narrowed down the failure threshold between 48 MB and 49 MB (in
> steps
> of 64 KB, it failed between 781 and 782 blocks).
>
>
> This is a 8.2 32 bits jail on a 8.2 amd64 host. In the jail, /home is
> a
> nullfs mounted ZFS filesystem. The mailbox is not that big:
>
> % felucia:jlh$ ls -l Mail/mbox1
> % -rw-------+ 1 jlh jlh 138744672 Feb 19 11:46 Mail/mbox1
>
>
> (( For some unknown reason some ACL keep appearing, but the problem if
> still there
> anyway if I do setfacl -b on it:
>
> % felucia:jlh$ getfacl Mail/mbox1
> % # file: Mail/mbox1
> % # owner: jlh
> % # group: jlh
> % owner@:rw-p--aARWcCos:------:allow
> % group@:------a-R-c--s:------:allow
> % everyone@:------a-R-c--s:------:allow
> ))
>
>
> Does anyone have an idea about this error? Besides, if someone knows
> why those ACLs keep appearing, I would be glad to know it :).
>
AFAIK, NFSv4 style ACLs are always enabled for ZFS and cannot be turned
off.
> Thanks.
> --
> Jeremie Le Hen
>
> Men are born free and equal. Later on, they're on their own.
> Jean Yanne
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