Date: Fri, 25 Aug 2017 12:57:37 -0600 From: Alan Somers <asomers@freebsd.org> To: "Conrad E. Meyer" <cem@freebsd.org> Cc: src-committers <src-committers@freebsd.org>, "svn-src-all@freebsd.org" <svn-src-all@freebsd.org>, "svn-src-head@freebsd.org" <svn-src-head@freebsd.org> Subject: Re: svn commit: r322893 - head/bin/dd Message-ID: <CAOtMX2iicwi_xTfjbGXX1HvwGF%2B49GM%2Bp8cZRNixg8EzxiH-fA@mail.gmail.com> In-Reply-To: <CAG6CVpVf8TNqnErZzoofuqy-TA9cXoZgf2W8Y2J2vNa63Vmu7Q@mail.gmail.com> References: <201708251531.v7PFVtoZ038242@repo.freebsd.org> <CAG6CVpXmL95eAjf4rXTL8QqnLcu5aQPRZ4cwk3sLGUSR35jnBg@mail.gmail.com> <CAOtMX2gXBcQyxTr_KivoGoKBP6UXL-sq9KhhB89fBgESfWV0yg@mail.gmail.com> <CAG6CVpVf8TNqnErZzoofuqy-TA9cXoZgf2W8Y2J2vNa63Vmu7Q@mail.gmail.com>
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That doesn't work either before or after this change.
-Alan
On Fri, Aug 25, 2017 at 11:20 AM, Conrad Meyer <cem@freebsd.org> wrote:
> Well, not negative, just large uint64_t numbers that would be negative
> as off_t (int64_t).
>
> E.g., dd if=/dev/kmem bs=1 iseek=0xfffff...foo count=8. I think we
> would like that to work. I don't recall whether it does or not before
> this change.
>
> Best,
> Conrad
>
> On Fri, Aug 25, 2017 at 10:08 AM, Alan Somers <asomers@freebsd.org> wrote:
>> Nope. Do you mean negative offsets for the iseek argument? I didn't
>> know you could do that.
>>
>> On Fri, Aug 25, 2017 at 10:59 AM, Conrad Meyer <cem@freebsd.org> wrote:
>>> Hi Alan,
>>>
>>> By any chance did you test this change with /dev/kmem and kernel
>>> addresses ("negative" off_t values)?
>>>
>>> Thanks,
>>> Conrad
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