* [9fans] double trouble
@ 2003-12-10 9:02 Charles Forsyth
2003-12-10 14:16 ` Russ Cox
0 siblings, 1 reply; 6+ messages in thread
From: Charles Forsyth @ 2003-12-10 9:02 UTC (permalink / raw)
To: 9fans
The attached mail from 'caldo.demon.co.uk!forsyth'
to 'plan9.bell-labs.com!9trouble' alias `local!9trouble'
failed with error '/bin/upas/deliver: opening mailbox: permission denied'.
the gist of the message (which i've resent to another address)
was: if you use filterkit's pipeto with
if(isspam)
spool /mail/box/$USER/spam
ensure chmod a+rw on /mail/box/$USER/L.spam
or each delivery of spam will take a little time.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [9fans] double trouble
2003-12-10 9:02 [9fans] double trouble Charles Forsyth
@ 2003-12-10 14:16 ` Russ Cox
2003-12-10 14:32 ` David Presotto
0 siblings, 1 reply; 6+ messages in thread
From: Russ Cox @ 2003-12-10 14:16 UTC (permalink / raw)
To: 9fans
> The attached mail from 'caldo.demon.co.uk!forsyth'
> to 'plan9.bell-labs.com!9trouble' alias `local!9trouble'
> failed with error '/bin/upas/deliver: opening mailbox: permission denied'.
>
>
> the gist of the message (which i've resent to another address)
> was: if you use filterkit's pipeto with
> if(isspam)
> spool /mail/box/$USER/spam
> ensure chmod a+rw on /mail/box/$USER/L.spam
> or each delivery of spam will take a little time.
Note that this says L.spam and not L.mbox,
a fact that I completely missed on first few readings.
Russ
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [9fans] double trouble
2003-12-10 14:16 ` Russ Cox
@ 2003-12-10 14:32 ` David Presotto
2003-12-10 16:52 ` Fco.J.Ballesteros
2003-12-11 0:54 ` boyd, rounin
0 siblings, 2 replies; 6+ messages in thread
From: David Presotto @ 2003-12-10 14:32 UTC (permalink / raw)
To: 9fans
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A dichotomy twixt tools that shouldn't be there. It looks like upas/fs always locks
L.mbox but that upas/deliver and upas/send lock the file L.(basename of mailbox being used).
Usually, they're the same but if we're delivering into other mailboxes, they aren't.
I'll make everything lock /mail/box/<user>/L.mbox and avoid the problem all together.
I'll run it locally for a while since I'm sure to generate at least one deadlock
along the way.
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From: "Russ Cox" <rsc@swtch.com>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] double trouble
Date: Wed, 10 Dec 2003 09:16:20 -0500
Message-ID: <E1AU58Z-000CsS-2e@t40.swtch.com>
> The attached mail from 'caldo.demon.co.uk!forsyth'
> to 'plan9.bell-labs.com!9trouble' alias `local!9trouble'
> failed with error '/bin/upas/deliver: opening mailbox: permission denied'.
>
>
> the gist of the message (which i've resent to another address)
> was: if you use filterkit's pipeto with
> if(isspam)
> spool /mail/box/$USER/spam
> ensure chmod a+rw on /mail/box/$USER/L.spam
> or each delivery of spam will take a little time.
Note that this says L.spam and not L.mbox,
a fact that I completely missed on first few readings.
Russ
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [9fans] double trouble
2003-12-10 14:32 ` David Presotto
@ 2003-12-10 16:52 ` Fco.J.Ballesteros
2003-12-11 1:08 ` boyd, rounin
2003-12-11 0:54 ` boyd, rounin
1 sibling, 1 reply; 6+ messages in thread
From: Fco.J.Ballesteros @ 2003-12-10 16:52 UTC (permalink / raw)
To: 9fans
[-- Attachment #1: Type: text/plain, Size: 185 bytes --]
Perhaps I'm picky. But I'd suggest changing the lock file
to be /mail/box/$user/Lock
Then it'd be clear that it does not refer to mbox in particular.
Thanks for the fix anyway.
[-- Attachment #2: Type: message/rfc822, Size: 4936 bytes --]
[-- Attachment #2.1.1: Type: text/plain, Size: 449 bytes --]
A dichotomy twixt tools that shouldn't be there. It looks like upas/fs always locks
L.mbox but that upas/deliver and upas/send lock the file L.(basename of mailbox being used).
Usually, they're the same but if we're delivering into other mailboxes, they aren't.
I'll make everything lock /mail/box/<user>/L.mbox and avoid the problem all together.
I'll run it locally for a while since I'm sure to generate at least one deadlock
along the way.
[-- Attachment #2.1.2: Type: message/rfc822, Size: 2531 bytes --]
From: "Russ Cox" <rsc@swtch.com>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] double trouble
Date: Wed, 10 Dec 2003 09:16:20 -0500
Message-ID: <E1AU58Z-000CsS-2e@t40.swtch.com>
> The attached mail from 'caldo.demon.co.uk!forsyth'
> to 'plan9.bell-labs.com!9trouble' alias `local!9trouble'
> failed with error '/bin/upas/deliver: opening mailbox: permission denied'.
>
>
> the gist of the message (which i've resent to another address)
> was: if you use filterkit's pipeto with
> if(isspam)
> spool /mail/box/$USER/spam
> ensure chmod a+rw on /mail/box/$USER/L.spam
> or each delivery of spam will take a little time.
Note that this says L.spam and not L.mbox,
a fact that I completely missed on first few readings.
Russ
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [9fans] double trouble
2003-12-10 14:32 ` David Presotto
2003-12-10 16:52 ` Fco.J.Ballesteros
@ 2003-12-11 0:54 ` boyd, rounin
1 sibling, 0 replies; 6+ messages in thread
From: boyd, rounin @ 2003-12-11 0:54 UTC (permalink / raw)
To: 9fans
great band -- SRV and Double Trouble Walkin' the Tightrope ...
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [9fans] double trouble
2003-12-10 16:52 ` Fco.J.Ballesteros
@ 2003-12-11 1:08 ` boyd, rounin
0 siblings, 0 replies; 6+ messages in thread
From: boyd, rounin @ 2003-12-11 1:08 UTC (permalink / raw)
To: 9fans
> Then it'd be clear that it does not refer to mbox in particular.
i have not read the locking code, but L.<file> is a good idea.
does a 'locked' file have a queue of lockers?
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2003-12-11 1:08 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2003-12-10 9:02 [9fans] double trouble Charles Forsyth
2003-12-10 14:16 ` Russ Cox
2003-12-10 14:32 ` David Presotto
2003-12-10 16:52 ` Fco.J.Ballesteros
2003-12-11 1:08 ` boyd, rounin
2003-12-11 0:54 ` boyd, rounin
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