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Sat, 03 Jul 2021 13:24:07 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=oyrJ1CYTeS6MI65QD+5aH2xTPa/Zi++jYcDRaJu7lsE=; b=ANccilR1/7qerrW6rs2u/ON7dHyBQG99ApAEeC/gSrQrDVNncrvRjO1B1VB7azqiI+ cPqlXSH23KyuseBxMe/FqkpJf0E0+3g7TurhMrxH4wqQFibpvsbh7x65iLzdrBHX76hH 6GwuDTZUwn32BZrCNVX8cK2Pdwb4PF1E+PqkyVxUI8jiUFLwrU+ZPiyU3lLvEVUcQTNG w3yjvDNVS5mKRoEixPKb3N+9YEUpDQgvV7orlIKdE+v0cs4Ztsn9Emj0OjimbqFbZX7L tvsb3pvG8VXB4snUa3p7Da1kHUMGBeg4bzd4zz3zx9OSJeGp8GCCvdbFSrwxVI1mpKs7 S9gA== X-Gm-Message-State: AOAM532uk/r2OTCImrReTJU5Jf/C9nk52QAoIBE+sTI+erU0nBF8VKye RmdhU1MlbAB0MaHz35wv4LosWGQbXanUA3Oj+obh67CMQJGW X-Google-Smtp-Source: ABdhPJy1Obdwmm7FKx1IVLqaSnal8I6oxGn9waWDa+O1RRMVRjRDjIm1ulkHkgK++L/LgyxwpUDP8XdYflUhSgnZQiC8byMy1t9R MIME-Version: 1.0 X-Received: by 2002:a05:6638:2512:: with SMTP id v18mr5042352jat.105.1625343846678; Sat, 03 Jul 2021 13:24:06 -0700 (PDT) Date: Sat, 03 Jul 2021 13:24:06 -0700 In-Reply-To: <0000000000000cafda05c639e751@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000009e89e205c63dda94@google.com> Subject: Re: [syzbot] general protection fault in try_grab_compound_head From: syzbot To: akpm@linux-foundation.org, bp@alien8.de, hpa@zytor.com, jmattson@google.com, joro@8bytes.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, mark.rutland@arm.com, masahiroy@kernel.org, mingo@redhat.com, pbonzini@redhat.com, peterz@infradead.org, rafael.j.wysocki@intel.com, rostedt@goodmis.org, seanjc@google.com, sedat.dilek@gmail.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, vitor@massaru.org, vkuznets@redhat.com, wanpengli@tencent.com, will@kernel.org, x86@kernel.org Content-Type: text/plain; charset="UTF-8" Authentication-Results: imf10.hostedemail.com; dkim=none; dmarc=fail reason="SPF not aligned (relaxed), No valid DKIM" header.from=appspotmail.com (policy=none); spf=pass (imf10.hostedemail.com: domain of 3ZsfgYAkbAIU178tjuun0jyyrm.pxxpun31n0lxw2nw2.lxv@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com designates 209.85.166.69 as permitted sender) smtp.mailfrom=3ZsfgYAkbAIU178tjuun0jyyrm.pxxpun31n0lxw2nw2.lxv@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com X-Rspamd-Server: rspam02 X-Stat-Signature: oifpjg7bqapy1mpwrsf4mcstqmanojss X-Rspamd-Queue-Id: 3CB906001AA5 X-HE-Tag: 1625343847-570684 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: syzbot has bisected this issue to: commit 997acaf6b4b59c6a9c259740312a69ea549cc684 Author: Mark Rutland Date: Mon Jan 11 15:37:07 2021 +0000 lockdep: report broken irq restoration bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=16fbcec4300000 start commit: 3dbdb38e Merge branch 'for-5.14' of git://git.kernel.org/p.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=15fbcec4300000 console output: https://syzkaller.appspot.com/x/log.txt?x=11fbcec4300000 kernel config: https://syzkaller.appspot.com/x/.config?x=a1fcf15a09815757 dashboard link: https://syzkaller.appspot.com/bug?extid=a3fcd59df1b372066f5a syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11a856c4300000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1582c9d8300000 Reported-by: syzbot+a3fcd59df1b372066f5a@syzkaller.appspotmail.com Fixes: 997acaf6b4b5 ("lockdep: report broken irq restoration") For information about bisection process see: https://goo.gl/tpsmEJ#bisection