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bug#7317: Bug in SLEEP command


From: Pádraig Brady
Subject: bug#7317: Bug in SLEEP command
Date: Tue, 02 Nov 2010 17:30:51 +0000
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3

On 02/11/10 16:41, Eric Blake wrote:
> On 11/02/2010 09:46 AM, Андрей Передрий wrote:
>>
>> Hello guys!
>>
>> I found a bug in 'sleep' command.
> 
>> As you can see - 'sleep' was terminated by himself after 24 days, 20 hours, 
>> 26 minutes and 33 seconds.
>> 24*24*3600 + 20*3600 + 26*60 + 33 = 2073600 + 72000 + 1560 + 33 = 2147193 
>> seconds
>> It seems like overflow.
>> coreutils 6.10-6
>> Debian 5.0.6  
> 
> Is your system 32-bit or 64-bit?  It makes a difference in determining
> whether there is a bug in the OS sleep primitives (for example, we know
> that 64-bit Linux has a bug where nanosleep with an extremely large
> value will cause the kernel to overflow and sleep for the wrong amount
> of time, but coreutils has workarounds in place for that).

I had a quick look at the gnulib replacement which
seems to assume 49 days is the worst case,
whereas we now need to use 24 days?

cheers,
Pádraig.





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