From: Borislav Petkov <bp@alien8.de>
To: Dmitry Vyukov <dvyukov@google.com>
Cc: syzbot <syzbot+42a71c84ef04577f1aef@syzkaller.appspotmail.com>,
Dave Hansen <dave.hansen@intel.com>,
"H. Peter Anvin" <hpa@zytor.com>,
Jim Mattson <jmattson@google.com>, Joerg Roedel <joro@8bytes.org>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
KVM list <kvm@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Lorenzo Stoakes <lstoakes@gmail.com>,
Ingo Molnar <mingo@redhat.com>,
Paolo Bonzini <pbonzini@redhat.com>,
seanjc@google.com,
syzkaller-bugs <syzkaller-bugs@googlegroups.com>,
Thomas Gleixner <tglx@linutronix.de>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
wanpengli@tencent.com, the arch/x86 maintainers <x86@kernel.org>
Subject: Re: general protection fault in vmx_vcpu_run (2)
Date: Wed, 24 Feb 2021 18:49:36 +0100 [thread overview]
Message-ID: <20210224174936.GG20344@zn.tnic> (raw)
In-Reply-To: <CACT4Y+ZaGOpJ1+dxfTVWhNuV5hFJmx=HgPqVf6bqWE==7PeFFQ@mail.gmail.com>
Hi Dmitry,
On Wed, Feb 24, 2021 at 06:12:57PM +0100, Dmitry Vyukov wrote:
> Looking at the bisection log, the bisection was distracted by something else.
Meaning the bisection result:
167dcfc08b0b ("x86/mm: Increase pgt_buf size for 5-level page tables")
is bogus?
> You can always find the original reported issue over the dashboard link:
> https://syzkaller.appspot.com/bug?extid=42a71c84ef04577f1aef
> or on lore:
> https://lore.kernel.org/lkml/0000000000007ff56205ba985b60@google.com/
Ok, so this looks like this is trying to run kvm ioctls *in* a guest,
i.e., nested. Right?
Thx.
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
next prev parent reply other threads:[~2021-02-24 17:50 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-05 15:20 general protection fault in vmx_vcpu_run (2) syzbot
2021-02-23 8:56 ` syzbot
2021-02-23 23:17 ` syzbot
2021-02-24 12:27 ` Borislav Petkov
2021-02-24 17:12 ` Dmitry Vyukov
2021-02-24 17:49 ` Borislav Petkov [this message]
2021-02-24 18:07 ` Sean Christopherson
2021-02-25 14:16 ` Dmitry Vyukov
2021-02-25 20:25 ` Sean Christopherson
2021-02-25 14:14 ` Dmitry Vyukov
2023-07-10 22:30 ` Sean Christopherson
2023-07-10 22:50 ` [syzbot] [kvm?] " syzbot
2023-07-10 23:39 ` Sean Christopherson
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=20210224174936.GG20344@zn.tnic \
--to=bp@alien8.de \
--cc=dave.hansen@intel.com \
--cc=dvyukov@google.com \
--cc=hpa@zytor.com \
--cc=jmattson@google.com \
--cc=joro@8bytes.org \
--cc=kirill.shutemov@linux.intel.com \
--cc=kvm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=lstoakes@gmail.com \
--cc=mingo@redhat.com \
--cc=pbonzini@redhat.com \
--cc=seanjc@google.com \
--cc=syzbot+42a71c84ef04577f1aef@syzkaller.appspotmail.com \
--cc=syzkaller-bugs@googlegroups.com \
--cc=tglx@linutronix.de \
--cc=vkuznets@redhat.com \
--cc=wanpengli@tencent.com \
--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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.