From: KY Srinivasan <kys@microsoft.com>
To: Dan Carpenter <dan.carpenter@oracle.com>
Cc: "x86@kernel.org" <x86@kernel.org>,
"gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"devel@linuxdriverproject.org" <devel@linuxdriverproject.org>,
"olaf@aepfle.de" <olaf@aepfle.de>,
"apw@canonical.com" <apw@canonical.com>,
"jasowang@redhat.com" <jasowang@redhat.com>,
"tglx@linutronix.de" <tglx@linutronix.de>,
"hpa@zytor.com" <hpa@zytor.com>,
"mingo@kernel.org" <mingo@kernel.org>
Subject: RE: [PATCH 1/1] x86/hyper-V: Allocate the IDT entry early in boot
Date: Sat, 9 Sep 2017 16:00:51 +0000 [thread overview]
Message-ID: <DM5PR21MB04768AAF2AB51549C9D1D78AA06A0@DM5PR21MB0476.namprd21.prod.outlook.com> (raw)
In-Reply-To: <20170909105428.osqbcf4gnibobpse@mwanda>
> -----Original Message-----
> From: Dan Carpenter [mailto:dan.carpenter@oracle.com]
> Sent: Saturday, September 9, 2017 4:04 AM
> To: KY Srinivasan <kys@microsoft.com>
> Cc: x86@kernel.org; gregkh@linuxfoundation.org; linux-
> kernel@vger.kernel.org; devel@linuxdriverproject.org; olaf@aepfle.de;
> apw@canonical.com; jasowang@redhat.com; tglx@linutronix.de;
> hpa@zytor.com; mingo@kernel.org
> Subject: Re: [PATCH 1/1] x86/hyper-V: Allocate the IDT entry early in boot
>
> On Fri, Sep 08, 2017 at 04:15:57PM -0700, kys@exchange.microsoft.com
> wrote:
> > From: "K. Y. Srinivasan" <kys@microsoft.com>
> >
> > Allocate the hypervisor callback IDT entry early in the boot sequence.
> >
>
> I'm guessing this fixes a NULL dereference or something? The changelog
> doesn't really say why we are doing this.
The changelog does say what we are doing - allocating the IDT entry early in the boot sequence.
The current code would allocate the entry as part of registering the handler when vmbus driver
loaded and this caused a problem for the cleanup Thomas had implemented.
K. Y
>
> regards,
> dan carpenter
next prev parent reply other threads:[~2017-09-09 16:00 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-08 23:15 kys
2017-09-09 11:04 ` Dan Carpenter
2017-09-09 16:00 ` KY Srinivasan [this message]
2017-09-13 9:00 ` Ingo Molnar
2017-09-13 18:05 ` KY Srinivasan
2017-09-13 9:25 ` [tip:x86/urgent] " tip-bot for K. Y. Srinivasan
-- strict thread matches above, loose matches on Subject: below --
2017-09-08 21:54 [PATCH 1/1] " K. Y. Srinivasan
2017-09-09 9:39 ` Thomas Gleixner
2017-09-09 15:58 ` KY Srinivasan
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=DM5PR21MB04768AAF2AB51549C9D1D78AA06A0@DM5PR21MB0476.namprd21.prod.outlook.com \
--to=kys@microsoft.com \
--cc=apw@canonical.com \
--cc=dan.carpenter@oracle.com \
--cc=devel@linuxdriverproject.org \
--cc=gregkh@linuxfoundation.org \
--cc=hpa@zytor.com \
--cc=jasowang@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@kernel.org \
--cc=olaf@aepfle.de \
--cc=tglx@linutronix.de \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®