KVM Archive on lore.kernel.org
 help / color / Atom feed
From: Steven Rostedt <rostedt@goodmis.org>
To: syzbot <syzbot+61e04e51b7ac86930589@syzkaller.appspotmail.com>
Cc: akpm@linux-foundation.org, axboe@kernel.dk, bp@alien8.de,
	hpa@zytor.com, jmattson@google.com, joro@8bytes.org,
	kvm@vger.kernel.org, linux-block@vger.kernel.org,
	linux-kernel@vger.kernel.org, mark.rutland@arm.com,
	masahiroy@kernel.org, mingo@redhat.com, pbonzini@redhat.com,
	peterz@infradead.org, rafael.j.wysocki@intel.com,
	seanjc@google.com, syzkaller-bugs@googlegroups.com,
	tglx@linutronix.de, vkuznets@redhat.com, wanpengli@tencent.com,
	will@kernel.org, x86@kernel.org
Subject: Re: [syzbot] possible deadlock in del_gendisk
Date: Tue, 13 Apr 2021 13:43:14 -0400
Message-ID: <20210413134314.16068eeb@gandalf.local.home> (raw)
In-Reply-To: <20210413134147.54556d9d@gandalf.local.home>

On Tue, 13 Apr 2021 13:41:47 -0400
Steven Rostedt <rostedt@goodmis.org> wrote:

> As the below splats look like it has nothing to do with this patch, and
> this patch will add a WARN() if there's broken logic somewhere, I bet the
> bisect got confused (if it is automated and does a panic_on_warning),
> because it will panic for broken code that his patch detects.
> 
> That is, the bisect was confused because it was triggering on two different
> issues. One that triggered the reported splat below, and another that this
> commit detects and warns on.

Is it possible to update the the bisect to make sure that if it is failing
on warnings, to make sure the warnings are somewhat related, before decided
that its the same bug?

-- Steve

  reply index

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-13 17:33 syzbot
2021-04-13 17:41 ` Steven Rostedt
2021-04-13 17:43   ` Steven Rostedt [this message]
2021-04-13 18:24     ` Dmitry Vyukov
2021-04-13 18:40       ` Steven Rostedt
2021-04-13 18:43         ` Steven Rostedt
2021-04-16  7:51           ` Bisections with different bug manifestations Dmitry Vyukov
2021-04-16 13:13             ` Steven Rostedt
2021-04-16 13:26               ` Dmitry Vyukov
2021-04-16 13:48                 ` Dmitry Vyukov

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=20210413134314.16068eeb@gandalf.local.home \
    --to=rostedt@goodmis.org \
    --cc=akpm@linux-foundation.org \
    --cc=axboe@kernel.dk \
    --cc=bp@alien8.de \
    --cc=hpa@zytor.com \
    --cc=jmattson@google.com \
    --cc=joro@8bytes.org \
    --cc=kvm@vger.kernel.org \
    --cc=linux-block@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mark.rutland@arm.com \
    --cc=masahiroy@kernel.org \
    --cc=mingo@redhat.com \
    --cc=pbonzini@redhat.com \
    --cc=peterz@infradead.org \
    --cc=rafael.j.wysocki@intel.com \
    --cc=seanjc@google.com \
    --cc=syzbot+61e04e51b7ac86930589@syzkaller.appspotmail.com \
    --cc=syzkaller-bugs@googlegroups.com \
    --cc=tglx@linutronix.de \
    --cc=vkuznets@redhat.com \
    --cc=wanpengli@tencent.com \
    --cc=will@kernel.org \
    --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

KVM Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/kvm/0 kvm/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 kvm kvm/ https://lore.kernel.org/kvm \
		kvm@vger.kernel.org
	public-inbox-index kvm

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.kvm


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git