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From: syzbot <syzbot+0c6da80218456f1edc36@syzkaller.appspotmail.com>
To: akpm@linux-foundation.org, davem@davemloft.net, jhs@mojatatu.com,
	jiri@resnulli.us, kvm@vger.kernel.org,
	linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
	mingo@elte.hu, mlevitsk@redhat.com, netdev@vger.kernel.org,
	pbonzini@redhat.com, peterz@infradead.org, seanjc@google.com,
	syzkaller-bugs@googlegroups.com, tglx@linutronix.de,
	vinicius.gomes@intel.com, viro@zeniv.linux.org.uk,
	xiyou.wangcong@gmail.com
Subject: Re: [syzbot] INFO: task hung in synchronize_rcu (3)
Date: Tue, 10 May 2022 01:51:13 -0700	[thread overview]
Message-ID: <0000000000004f3c0d05dea46dac@google.com> (raw)
In-Reply-To: <000000000000402c5305ab0bd2a2@google.com>

syzbot suspects this issue was fixed by commit:

commit 2d08935682ac5f6bfb70f7e6844ec27d4a245fa4
Author: Sean Christopherson <seanjc@google.com>
Date:   Fri Apr 15 00:43:41 2022 +0000

    KVM: x86: Don't re-acquire SRCU lock in complete_emulated_io()

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=16dc2e49f00000
start commit:   ea4424be1688 Merge tag 'mtd/fixes-for-5.17-rc8' of git://g..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=442f8ac61e60a75e
dashboard link: https://syzkaller.appspot.com/bug?extid=0c6da80218456f1edc36
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1685af9e700000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=11b09df1700000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: KVM: x86: Don't re-acquire SRCU lock in complete_emulated_io()

For information about bisection process see: https://goo.gl/tpsmEJ#bisection

  parent reply	other threads:[~2022-05-10  8:51 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-22 18:22 INFO: task hung in synchronize_rcu (3) syzbot
2020-07-25  5:11 ` syzbot
2022-05-10  8:51 ` syzbot [this message]
2022-05-10 13:45   ` [syzbot] " Sean Christopherson
2022-05-10 13:50     ` Paolo Bonzini
2022-05-10 13:56       ` Sean Christopherson
     [not found] <20220510110816.5751-1-hdanton@sina.com>
2022-05-10 11:43 ` syzbot
     [not found] <20220510115257.5804-1-hdanton@sina.com>
2022-05-10 12:12 ` syzbot
     [not found] <20220511132050.5868-1-hdanton@sina.com>
2022-05-11 13:44 ` syzbot

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