linux-kernel - Re: BUG: Is it a bug in Linux time() function or Linux OS calls?

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <4B975CB4.4000804@davidnewall.com>
Date:	Wed, 10 Mar 2010 19:17:48 +1030
From:	David Newall <davidn@...idnewall.com>
To:	Srinivas Nayak <sinu_nayak2001@...oo.co.in>
CC:	linux-kernel@...r.kernel.org
Subject: Re: BUG: Is it a bug in Linux time() function or Linux OS calls?

Dear Srinivas Nayak,

I don't suppose you're writing to a network mounted disk, with the 
network device's clock about half a second behind your test machine?  
Otherwise -- and I'm just guessing here, and will leave it to you to 
UTSL -- this could be explained by use of two different algorithms for 
converting a higher-resolution time source to the one-second 
resolution.  A truncation algorithm versus a rounding algorithm could 
produce the result you demonstrate.

Regards,

David
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/