svn commit: r265472 - head/bin/dd
Alan Somers
asomers at freebsd.org
Thu May 8 23:00:11 UTC 2014
On Thu, May 8, 2014 at 4:55 PM, Dmitry Morozovsky <marck at rinet.ru> wrote:
> On Wed, 7 May 2014, Alan Somers wrote:
>
> [snip]
>
>> Even if nanosecond resolution isn't useful, monotonicity is. Nobody
>> should be using a nonmonotonic clock just to measure durations. I
>> started an audit of all of FreeBSD to look for other programs that use
>> gettimeofday to measure durations. I haven't finished, but I've
>> already found a lot, including xz, ping, hastd, fetch, systat, powerd,
>> and others. I don't have time to fix them, though. Would you be
>> interested, or do you know anyone else who would?
>
> From your list, hastd seems to be the most dangerous point to me.
>
> Adding trociny@ as one of the most active hastd-related committers so the issue
> would not be lost in the areas...
In hastd's case, the problematic comparison is only used to print
debugging info. It happens twice, in primary.c lines 1978 and 2039.
>
> --
> Sincerely,
> D.Marck [DM5020, MCK-RIPE, DM3-RIPN]
> [ FreeBSD committer: marck at FreeBSD.org ]
> ------------------------------------------------------------------------
> *** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck at rinet.ru ***
> ------------------------------------------------------------------------
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