netdev - Re: [Xen-devel] [PATCH net] xen-netback: add the scenario which now beyond the range time_after

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: <52601274.5010008@oracle.com>
Date:	Fri, 18 Oct 2013 00:38:12 +0800
From:	annie li <annie.li@...cle.com>
To:	Jan Beulich <JBeulich@...e.com>
CC:	jianhai luan <jianhai.luan@...cle.com>, david.vrabel@...rix.com,
	ian.campbell@...rix.com, wei.liu2@...rix.com,
	xen-devel@...ts.xenproject.org, netdev@...r.kernel.org
Subject: Re: [Xen-devel] [PATCH net] xen-netback: add the scenario which now
 beyond the range time_after_eq().


On 2013-10-17 17:26, Jan Beulich wrote:
>> Yes, the issue only can be  reproduced in 32-bit Dom0 (Beyond
>> MAX_ULONG/2 in 64-bit will need long long time)
>>
>> I think the gap should be think all environment even now extending 480+.
>> if now fall in the gap,  one timer will be pending and replenish will be
>> in time.  Please run the attachment test program.
> Not sure what this is supposed to tell me. I recognize that there
> are overflow conditions not handled properly, but (a) I have a
> hard time thinking of a sensible guest that sits idle for over 240
> days (host uptime usually isn't even coming close to that due to
> maintenance requirements) and (b) if there is such a sensible
> guest, then I can't see why dealing with one being idle for over
> 480 days should be required too.
>

If the guest contains multiple NICs, that situation probably happens 
when one NIC keeps idle and others work under load. BTW, how do you get 
the 240?

Thanks
Annie
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html