57 messages in net.sourceforge.lists.courier-users[courier-users] Re: OpenBSD 3.2 break...
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Sam VarshavchikJan 13, 2003 3:46 pm 
Richard LyonsJan 13, 2003 5:57 pm 
D. J. BernsteinJan 13, 2003 6:11 pm 
Sam VarshavchikJan 13, 2003 9:11 pm 
Russell NelsonJan 13, 2003 9:46 pm 
Sam VarshavchikJan 13, 2003 10:19 pm 
Russell NelsonJan 13, 2003 11:11 pm 
Sam VarshavchikJan 13, 2003 11:35 pm 
James GravesJan 14, 2003 7:36 am 
mw-l...@csi.huJan 14, 2003 7:39 am 
Sam VarshavchikJan 14, 2003 3:22 pm 
mw-l...@csi.huJan 14, 2003 11:13 pm 
Sam VarshavchikJan 15, 2003 5:11 am 
Matthias AndreeJan 15, 2003 9:55 am 
Sam VarshavchikJan 15, 2003 3:11 pm 
Matthias AndreeJan 15, 2003 4:13 pm 
Sam VarshavchikJan 15, 2003 4:48 pm 
Johan LindhJan 15, 2003 10:16 pm 
Peter C. NortonJan 15, 2003 11:52 pm 
Bill MichellJan 16, 2003 1:30 am 
Johan LindhJan 16, 2003 2:00 am 
Matthias AndreeJan 16, 2003 2:22 am 
Bill MichellJan 16, 2003 2:28 am 
Matthias AndreeJan 16, 2003 2:28 am 
Matthias AndreeJan 16, 2003 2:45 am 
David LaightJan 16, 2003 3:14 am 
Sam VarshavchikJan 16, 2003 4:58 am 
Sam VarshavchikJan 16, 2003 5:01 am 
Johan LindhJan 16, 2003 6:28 am 
Bob JohnsonJan 16, 2003 7:42 am 
James GravesJan 16, 2003 8:18 am 
Alex...@nokia.comJan 16, 2003 8:58 am 
Bill MichellJan 16, 2003 9:06 am 
Johan LindhJan 16, 2003 9:45 am 
Matthias AndreeJan 16, 2003 9:46 am 
Matthias AndreeJan 16, 2003 9:47 am 
Liviu DaiaJan 16, 2003 12:17 pm 
mw-l...@csi.huJan 16, 2003 12:48 pm 
Sam VarshavchikJan 16, 2003 2:55 pm 
Matthias AndreeJan 16, 2003 3:11 pm 
Peter C. NortonJan 16, 2003 6:13 pm 
Sam VarshavchikJan 16, 2003 7:03 pm 
in...@lauwira.orgJan 16, 2003 10:20 pm 
Sam VarshavchikJan 17, 2003 4:47 am 
Matthias AndreeJan 17, 2003 7:55 am 
in...@lauwira.orgJan 17, 2003 8:41 am 
Saxon JonesJan 17, 2003 9:44 am 
in...@lauwira.orgJan 17, 2003 10:49 am 
mw-l...@csi.huJan 17, 2003 12:30 pm 
Sam VarshavchikJan 17, 2003 2:35 pm 
Mike LemoineJan 17, 2003 3:07 pm 
in...@lauwira.orgJan 17, 2003 3:12 pm 
Saxon JonesJan 17, 2003 3:44 pm 
in...@lauwira.orgJan 17, 2003 3:48 pm 
Matthias AndreeJan 18, 2003 5:05 am 
Matthias AndreeJan 18, 2003 5:06 am 
in...@lauwira.orgJan 20, 2003 9:57 am 
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Subject:[courier-users] Re: OpenBSD 3.2 breaks Courier, Qmail.Actions...
From:Sam Varshavchik (mrs@courier-mta.com)
Date:Jan 13, 2003 10:19:40 pm
List:net.sourceforge.lists.courier-users

Russell Nelson writes:

Sam Varshavchik writes:

Since filenames for messages in maildirs are generated based on the combination of the pid, and the current time, in seconds, there is now a race condition that will result in loss or corruption of mail. This breaks Courier and Qmail.

Not for qmail, it doesn't. In the unlikely event that corruption would occur, qmail-local sleeps two seconds and tries again. At that point, the pid is still the same and the time is different.

How exactly would qmail-local (which started at T+900 milliseconds) know that it needs to do that; when at T+700 milliseconds an app moved a file carrying the same filename from new to cur, and THAT file was delivered to new by another qmail-local process that had the same pid, but which exited at T+500 milliseconds?