From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5962AC36017 for ; Tue, 17 Sep 2024 11:35:26 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id B80C16B0085; Tue, 17 Sep 2024 07:35:25 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id B30B06B0089; Tue, 17 Sep 2024 07:35:25 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 9F8036B0092; Tue, 17 Sep 2024 07:35:25 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) by kanga.kvack.org (Postfix) with ESMTP id 8171F6B0085 for ; Tue, 17 Sep 2024 07:35:25 -0400 (EDT) Received: from smtpin16.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay05.hostedemail.com (Postfix) with ESMTP id 3075840331 for ; Tue, 17 Sep 2024 11:35:25 +0000 (UTC) X-FDA: 82574024610.16.2B43F00 Received: from mail-il1-f200.google.com (mail-il1-f200.google.com [209.85.166.200]) by imf01.hostedemail.com (Postfix) with ESMTP id 7188140011 for ; Tue, 17 Sep 2024 11:35:23 +0000 (UTC) Authentication-Results: imf01.hostedemail.com; dkim=none; dmarc=fail reason="SPF not aligned (relaxed), No valid DKIM" header.from=appspotmail.com (policy=none); spf=pass (imf01.hostedemail.com: domain of 3emnpZgkbADEflmXNYYReNccVQ.TbbTYRhfRePbagRag.PbZ@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com designates 209.85.166.200 as permitted sender) smtp.mailfrom=3emnpZgkbADEflmXNYYReNccVQ.TbbTYRhfRePbagRag.PbZ@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1726572813; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding:in-reply-to: references; bh=SzNEFOkwKTRRCubcdErJpo02u95pu5bJoNvb21H3/Cg=; b=baFkE0eSxG3O5O11jd2vLVuEx2n2sV1DWZW1ljM5fG39otdg/H854ScdYaTRx3IzxYMUn4 iJNBm4sNWjxMvlkkd9meXV0VEUB1GTTm1gchol+7a90YoQzqkuBXuhmmWuuak7DCOuwN0/ B9dc/KMpN773LN/TS2sv3o+tmuR86kM= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1726572813; a=rsa-sha256; cv=none; b=rXLjt2Prs2H1z9WsjqOT6FH7yqpIJ3w8scsLp1xlnAR4HJctp0Tk2NLLb4GDFYP51wigF0 Ug5Wswo8dkgmeIM3GRnz9ybeF1YgdnVlh+uUbtwdhsAnSGspNxWQmIQx6zeo/fOxsA4yFW BNNT7XZ2LA6aLVBcU6TILKAEnG5XLnA= ARC-Authentication-Results: i=1; imf01.hostedemail.com; dkim=none; dmarc=fail reason="SPF not aligned (relaxed), No valid DKIM" header.from=appspotmail.com (policy=none); spf=pass (imf01.hostedemail.com: domain of 3emnpZgkbADEflmXNYYReNccVQ.TbbTYRhfRePbagRag.PbZ@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com designates 209.85.166.200 as permitted sender) smtp.mailfrom=3emnpZgkbADEflmXNYYReNccVQ.TbbTYRhfRePbagRag.PbZ@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-il1-f200.google.com with SMTP id e9e14a558f8ab-3a045e7ed57so96420585ab.2 for ; Tue, 17 Sep 2024 04:35:23 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1726572922; x=1727177722; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=SzNEFOkwKTRRCubcdErJpo02u95pu5bJoNvb21H3/Cg=; b=jirmyCwy+LlYqPMwaG+vsg7nvVTlxHk+13g0b5rbNo2UJV5B5NOXkag+6uHJGmB58P XFaobUOdbMaI0J1QLoWuO2E5lq9sexOfORoA12UzZzbt9Dagg5cJTsIFKPg9qH1mvEMZ Dp3BDCB5/3KMAoKYI2Z35Ot20K7XHGsZVwgMXRuMwE/M3BFCmyoJ/eduW7ySjviAMRCL IqmCzezvfmXyW/HjJ5hIKZDZKuqkmT21JS6F9iLzhCKb0vsqQfm3RYZYymGHXm7prkVE TN1K7a6b1TYcIKUCv/YMlYXBIzGrNq7eRaYd8U8DgmkG+XCLLWFL+6eOa2dAVFBHyL2/ NvTg== X-Forwarded-Encrypted: i=1; AJvYcCUulbLOGrzzA4ZvpVFeyfjH3DVfT50LLgOU8QHQl5Re71EUuFpIHLHKWHdtsNNCNuoXJRO8YZhKwA==@kvack.org X-Gm-Message-State: AOJu0YyqTGtmymqw/Q1uOCxPMRZDuO3Og5ZZBsN2KmMFGh063hyU//J/ +sf/g0URyDfxp62jtB/AFy8PhY1g106xM1wwbSLyirmFaxVvT4iFinlTX0kf453EcKzT6n0zud+ FdlyLRqIZFTx2+pKPxAdNdBSViL68olwl0uWaDS7pnGErEH4cOxLUgu8= X-Google-Smtp-Source: AGHT+IHS++gqkOoTkEjWkqIehIfIt9V+h/1Ceq67kFyZ9Vwzx9LkDxLLtGxGfagBfDgu41gNoIX0xOL0HHrHEYccUKocJQQQ0KgA MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1d11:b0:3a0:9c2d:f441 with SMTP id e9e14a558f8ab-3a09c2dfb33mr70460615ab.24.1726572922030; Tue, 17 Sep 2024 04:35:22 -0700 (PDT) Date: Tue, 17 Sep 2024 04:35:21 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <66e96979.050a0220.252d9a.000a.GAE@google.com> Subject: [syzbot] [mm?] INFO: rcu detected stall in sys_execve (6) From: syzbot To: Liam.Howlett@oracle.com, akpm@linux-foundation.org, bp@alien8.de, davem@davemloft.net, hpa@zytor.com, jhs@mojatatu.com, jiri@resnulli.us, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, lorenzo.stoakes@oracle.com, mingo@redhat.com, netdev@vger.kernel.org, pbonzini@redhat.com, rkrcmar@redhat.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, vbabka@suse.cz, vinicius.gomes@intel.com, x86@kernel.org, xiyou.wangcong@gmail.com Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: 7188140011 X-Stat-Signature: j5jsnbc6octdudr33mpt6sdjh85awmw4 X-Rspamd-Server: rspam09 X-Rspam-User: X-HE-Tag: 1726572923-186548 X-HE-Meta: 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 ylOJsv3v 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 gqrhOc/S 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 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: List-Subscribe: List-Unsubscribe: Hello, syzbot found the following issue on: HEAD commit: 46ae4d0a4897 Merge git://git.kernel.org/pub/scm/linux/kern.. git tree: net-next console output: https://syzkaller.appspot.com/x/log.txt?x=106a549f980000 kernel config: https://syzkaller.appspot.com/x/.config?x=3e10d80c64e440c0 dashboard link: https://syzkaller.appspot.com/bug?extid=8bb3e2bee8a429cc76dd compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=144e27c7980000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/c16ef5753326/disk-46ae4d0a.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/4a3a038d0ccf/vmlinux-46ae4d0a.xz kernel image: https://storage.googleapis.com/syzbot-assets/244ada956332/bzImage-46ae4d0a.xz The issue was bisected to: commit 5a781ccbd19e4664babcbe4b4ead7aa2b9283d22 Author: Vinicius Costa Gomes Date: Sat Sep 29 00:59:43 2018 +0000 tc: Add support for configuring the taprio scheduler bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=10311900580000 final oops: https://syzkaller.appspot.com/x/report.txt?x=12311900580000 console output: https://syzkaller.appspot.com/x/log.txt?x=14311900580000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+8bb3e2bee8a429cc76dd@syzkaller.appspotmail.com Fixes: 5a781ccbd19e ("tc: Add support for configuring the taprio scheduler") rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-...D } 2685 jiffies s: 3289 root: 0x1/. rcu: blocking rcu_node structures (internal RCU debug): Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 5444 Comm: syz-executor Not tainted 6.11.0-rc7-syzkaller-01396-g46ae4d0a4897 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:taprio_set_budgets+0x116/0x370 net/sched/sch_taprio.c:666 Code: 44 24 10 4c 89 74 24 18 4d 89 f5 45 31 ff 48 89 5c 24 08 bf 10 00 00 00 4c 89 fe e8 74 8f d2 f7 49 83 ff 0f 0f 87 63 01 00 00 <4c> 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 RSP: 0018:ffffc90000007c30 EFLAGS: 00000093 RAX: 0000000000010000 RBX: ffff888028fdb130 RCX: ffff888030aada00 RDX: 0000000000010000 RSI: 0000000000000001 RDI: 0000000000000010 RBP: 0000000000000000 R08: ffffffff89c1021c R09: 1ffff110051cea10 R10: dffffc0000000000 R11: ffffed10051cea11 R12: 0000000000000004 R13: ffff888028e75008 R14: ffff888028e75000 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb58963cff8 CR3: 00000000311f6000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: advance_sched+0x98d/0xca0 net/sched/sch_taprio.c:977 __run_hrtimer kernel/time/hrtimer.c:1689 [inline] __hrtimer_run_queues+0x59b/0xd50 kernel/time/hrtimer.c:1753 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1815 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline] __sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:unwind_next_frame+0x9/0x2a00 arch/x86/kernel/unwind_orc.c:469 Code: 4c 89 f7 e8 69 ad b9 00 e9 53 ff ff ff 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 41 57 41 56 <41> 55 41 54 53 48 81 ec a0 00 00 00 48 89 fd 49 bd 00 00 00 00 00 RSP: 0018:ffffc9000422f120 EFLAGS: 00000202 RAX: 0000000000000001 RBX: ffffffff820edaf2 RCX: ffff888030aada00 RDX: dffffc0000000000 RSI: ffffffff820edaf2 RDI: ffffc9000422f140 RBP: ffffc9000422f1d0 R08: 000000000000000a R09: ffffc9000422f230 R10: 0000000000000003 R11: ffffffff817f2f80 R12: ffff888030aada00 R13: ffffffff817f2f80 R14: ffffc9000422f220 R15: ffffc9000422f140 arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122 kasan_save_stack+0x3f/0x60 mm/kasan/common.c:47 __kasan_record_aux_stack+0xac/0xc0 mm/kasan/generic.c:541 __call_rcu_common kernel/rcu/tree.c:3106 [inline] call_rcu+0x167/0xa70 kernel/rcu/tree.c:3210 remove_vma mm/mmap.c:189 [inline] remove_mt mm/mmap.c:2415 [inline] do_vmi_align_munmap+0x155c/0x18c0 mm/mmap.c:2758 do_vmi_munmap+0x261/0x2f0 mm/mmap.c:2830 __vm_munmap+0x1fc/0x400 mm/mmap.c:3109 elf_map fs/binfmt_elf.c:383 [inline] elf_load+0x2d8/0x6f0 fs/binfmt_elf.c:408 load_elf_binary+0xeba/0x2680 fs/binfmt_elf.c:1141 search_binary_handler fs/exec.c:1827 [inline] exec_binprm fs/exec.c:1869 [inline] bprm_execve+0xaf8/0x1770 fs/exec.c:1920 do_execveat_common+0x55f/0x6f0 fs/exec.c:2027 do_execve fs/exec.c:2101 [inline] __do_sys_execve fs/exec.c:2177 [inline] __se_sys_execve fs/exec.c:2172 [inline] __x64_sys_execve+0x92/0xb0 fs/exec.c:2172 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb5887b0df7 Code: Unable to access opcode bytes at 0x7fb5887b0dcd. RSP: 002b:00007fb58963ce78 EFLAGS: 00000246 ORIG_RAX: 000000000000003b RAX: ffffffffffffffda RBX: 00007fb588815ef0 RCX: 00007fb5887b0df7 RDX: 00007ffedbc5b9b0 RSI: 00007ffedbc5bbf0 RDI: 00007ffedbc5cef5 RBP: 00007ffedbc5ba20 R08: 00007fb58963cf20 R09: 0000000000000000 R10: 0000000000000008 R11: 0000000000000246 R12: 000055558020fa80 R13: 0000000000000100 R14: 00007ffedbc5b9d0 R15: 00007ffedbc5b780 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. For information about bisection process see: https://goo.gl/tpsmEJ#bisection If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup