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 X-Spam-Level: X-Spam-Status: No, score=-8.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 37B2FC433B4 for ; Mon, 17 May 2021 10:56:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 00D24611C2 for ; Mon, 17 May 2021 10:56:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236605AbhEQK5o (ORCPT ); Mon, 17 May 2021 06:57:44 -0400 Received: from mail-il1-f200.google.com ([209.85.166.200]:42944 "EHLO mail-il1-f200.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236441AbhEQK5j (ORCPT ); Mon, 17 May 2021 06:57:39 -0400 Received: by mail-il1-f200.google.com with SMTP id d3-20020a9287430000b0290181f7671fa1so5973881ilm.9 for ; Mon, 17 May 2021 03:56:22 -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:message-id:subject:from:to; bh=Mvw1ZMzypgw0dQW963IDZFGXoWO2KAZbgmwYDsY4n3I=; b=jOZ6Tv/8V41KsKFcruv3OQuQcKjLFjTOvpovUbTr3hLk+YUYFuRG/Ds3wDbnZMrrwR 8kOQFo5mbrDPHykJIBD65SlwSyrP19hsFtpnW1vyaDyzX8Az7DWO4hBaMrNf55cGZ2LD ZK7greVzRQyF137l04i2by6ZHSvXOTAOFyPtVYWigWT0e3L6nvJOW/9FOkIVVzN3pmBZ TjBKeh3cD56EP+O8IeujuVABmneH64w2DAj7Ih4h48+Asht3QYHggMxkjnCEv7+EWVTa sHxuuX7tegs2RdnpislNDm+J5H74nFRUNSGnDlH60BPDQlrgzXxSl4MsFtJigg8xPrWi fgjQ== X-Gm-Message-State: AOAM5337blV3npgpC4zCWAE3PLjg4DQ5nyeWf+RgnPnEzGvKWdWcsHOI awZhjoEiGukRAooiBPMbYQJUUjDdJ9x9VN1AWO81mZJJfHhd X-Google-Smtp-Source: ABdhPJwcoreSZ65eBKWqAeGid1eFwnSu3Jb5EUFDNlwPnE8ubwDlEEHGQk72Yq0jPhbf3scDuQ/rLtPj6xuAApTY4mEU0twlynJx MIME-Version: 1.0 X-Received: by 2002:a5d:81c9:: with SMTP id t9mr7528052iol.45.1621248982635; Mon, 17 May 2021 03:56:22 -0700 (PDT) Date: Mon, 17 May 2021 03:56:22 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000b3d89a05c284718f@google.com> Subject: [syzbot] WARNING in __perf_install_in_context From: syzbot To: acme@kernel.org, alexander.shishkin@linux.intel.com, andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, john.fastabend@gmail.com, jolsa@redhat.com, kafai@fb.com, kpsingh@kernel.org, linux-kernel@vger.kernel.org, mark.rutland@arm.com, mingo@redhat.com, namhyung@kernel.org, netdev@vger.kernel.org, peterz@infradead.org, songliubraving@fb.com, syzkaller-bugs@googlegroups.com, yhs@fb.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: 18a3c5f7 Merge tag 'for_linus' of git://git.kernel.org/pub.. git tree: git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git fixes console output: https://syzkaller.appspot.com/x/log.txt?x=1662c153d00000 kernel config: https://syzkaller.appspot.com/x/.config?x=b8ac1fe5995f69d7 dashboard link: https://syzkaller.appspot.com/bug?extid=0fb24f56fa707081e4f2 userspace arch: riscv64 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+0fb24f56fa707081e4f2@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 1 PID: 8643 at kernel/events/core.c:2781 __perf_install_in_context+0x1c0/0x47c kernel/events/core.c:2781 Modules linked in: CPU: 1 PID: 8643 Comm: syz-executor.0 Not tainted 5.12.0-rc8-syzkaller-00011-g18a3c5f7abfd #0 Hardware name: riscv-virtio,qemu (DT) epc : __perf_install_in_context+0x1c0/0x47c kernel/events/core.c:2781 ra : __perf_install_in_context+0x1c0/0x47c kernel/events/core.c:2781 epc : ffffffe00027d7ba ra : ffffffe00027d7ba sp : ffffffe00818faf0 gp : ffffffe0045883c0 tp : ffffffe006dbaf80 t0 : ffffffc4010812b2 t1 : 0000000000000001 t2 : 0000000000000000 s0 : ffffffe00818fb50 s1 : ffffffe01ca95000 a0 : ffffffe066d79118 a1 : 00000000000f0000 a2 : ffffffd010ada000 a3 : ffffffe00027d7ba a4 : ffffffd010ae31f0 a5 : 000000000000123e a6 : 0000000000f00000 a7 : ffffffe00027d6ba s2 : ffffffe066d78f70 s3 : ffffffe01ca950a8 s4 : ffffffe00aacfc00 s5 : ffffffe006dbaf80 s6 : ffffffe066d78f78 s7 : ffffffe00d98bc00 s8 : ffffffe006dbaf80 s9 : ffffffe00458c0d0 s10: 0000000000000000 s11: 0000000000000000 t3 : 2699545dc3e5be00 t4 : ffffffc401031f97 t5 : ffffffc401031f99 t6 : ffffffe00f58c1f4 status: 0000000000000100 badaddr: 0000000000000000 cause: 0000000000000003 Call Trace: [] __perf_install_in_context+0x1c0/0x47c kernel/events/core.c:2781 [] remote_function kernel/events/core.c:91 [inline] [] remote_function+0xa8/0xc0 kernel/events/core.c:71 [] generic_exec_single+0x1a6/0x212 kernel/smp.c:293 [] smp_call_function_single+0x134/0x2ba kernel/smp.c:513 [] task_function_call+0x90/0xee kernel/events/core.c:119 [] perf_install_in_context+0x174/0x2e6 kernel/events/core.c:2902 [] __do_sys_perf_event_open+0x10ea/0x199e kernel/events/core.c:12169 [] sys_perf_event_open+0x34/0x46 kernel/events/core.c:11775 [] ret_from_syscall+0x0/0x2 irq event stamp: 1944 hardirqs last enabled at (1943): [] mod_memcg_lruvec_state include/linux/memcontrol.h:979 [inline] hardirqs last enabled at (1943): [] mod_objcg_state mm/slab.h:296 [inline] hardirqs last enabled at (1943): [] memcg_slab_post_alloc_hook+0x2ea/0x46a mm/slab.h:327 hardirqs last disabled at (1944): [] generic_exec_single+0x1a2/0x212 kernel/smp.c:292 softirqs last enabled at (1900): [] spin_unlock_bh include/linux/spinlock.h:399 [inline] softirqs last enabled at (1900): [] release_sock+0xf6/0x122 net/core/sock.c:3085 softirqs last disabled at (1898): [] spin_lock_bh include/linux/spinlock.h:359 [inline] softirqs last disabled at (1898): [] release_sock+0x2a/0x122 net/core/sock.c:3072 ---[ end trace 757ee55d225523fe ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 8643 at kernel/events/core.c:3210 ctx_sched_out+0x312/0x548 kernel/events/core.c:3210 Modules linked in: CPU: 1 PID: 8643 Comm: syz-executor.0 Tainted: G W 5.12.0-rc8-syzkaller-00011-g18a3c5f7abfd #0 Hardware name: riscv-virtio,qemu (DT) epc : ctx_sched_out+0x312/0x548 kernel/events/core.c:3210 ra : ctx_sched_out+0x312/0x548 kernel/events/core.c:3210 epc : ffffffe00027ca5e ra : ffffffe00027ca5e sp : ffffffe00818fa90 gp : ffffffe0045883c0 tp : ffffffe006dbaf80 t0 : ffffffc4010812b2 t1 : 0000000000000001 t2 : 0000000000000000 s0 : ffffffe00818faf0 s1 : ffffffe00aacfc00 a0 : ffffffe066d79118 a1 : 00000000000f0000 a2 : ffffffd010ada000 a3 : ffffffe00027ca5e a4 : ffffffd010c9c740 a5 : 00000000000384e8 a6 : 0000000000f00000 a7 : ffffffe00027d6ba s2 : ffffffe066d78f70 s3 : 0000000000000004 s4 : 0000000000000000 s5 : 0000000000000000 s6 : ffffffe00aacfd40 s7 : 0000000000000000 s8 : ffffffe006dbaf80 s9 : ffffffe00458c0d0 s10: 0000000000000000 s11: 0000000000000000 t3 : 2699545dc3e5be00 t4 : ffffffc401031f97 t5 : ffffffc401031f99 t6 : ffffffe00f58c1f4 status: 0000000000000100 badaddr: 0000000000000000 cause: 0000000000000003 Call Trace: [] ctx_sched_out+0x312/0x548 kernel/events/core.c:3210 [] __perf_install_in_context+0x1f4/0x47c kernel/events/core.c:2799 [] remote_function kernel/events/core.c:91 [inline] [] remote_function+0xa8/0xc0 kernel/events/core.c:71 [] generic_exec_single+0x1a6/0x212 kernel/smp.c:293 [] smp_call_function_single+0x134/0x2ba kernel/smp.c:513 [] task_function_call+0x90/0xee kernel/events/core.c:119 [] perf_install_in_context+0x174/0x2e6 kernel/events/core.c:2902 [] __do_sys_perf_event_open+0x10ea/0x199e kernel/events/core.c:12169 [] sys_perf_event_open+0x34/0x46 kernel/events/core.c:11775 [] ret_from_syscall+0x0/0x2 irq event stamp: 1944 hardirqs last enabled at (1943): [] mod_memcg_lruvec_state include/linux/memcontrol.h:979 [inline] hardirqs last enabled at (1943): [] mod_objcg_state mm/slab.h:296 [inline] hardirqs last enabled at (1943): [] memcg_slab_post_alloc_hook+0x2ea/0x46a mm/slab.h:327 hardirqs last disabled at (1944): [] generic_exec_single+0x1a2/0x212 kernel/smp.c:292 softirqs last enabled at (1900): [] spin_unlock_bh include/linux/spinlock.h:399 [inline] softirqs last enabled at (1900): [] release_sock+0xf6/0x122 net/core/sock.c:3085 softirqs last disabled at (1898): [] spin_lock_bh include/linux/spinlock.h:359 [inline] softirqs last disabled at (1898): [] release_sock+0x2a/0x122 net/core/sock.c:3072 ---[ end trace 757ee55d225523ff ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 8643 at kernel/events/core.c:2668 task_ctx_sched_out+0x5c/0x60 kernel/events/core.c:2668 Modules linked in: CPU: 1 PID: 8643 Comm: syz-executor.0 Tainted: G W 5.12.0-rc8-syzkaller-00011-g18a3c5f7abfd #0 Hardware name: riscv-virtio,qemu (DT) epc : task_ctx_sched_out+0x5c/0x60 kernel/events/core.c:2668 ra : task_ctx_sched_out+0x5c/0x60 kernel/events/core.c:2668 epc : ffffffe00027ccf0 ra : ffffffe00027ccf0 sp : ffffffe00818fa70 gp : ffffffe0045883c0 tp : ffffffe006dbaf80 t0 : ffffffc4010812b2 t1 : 0000000000000001 t2 : 0000000000000000 s0 : ffffffe00818faa0 s1 : ffffffe066d78f70 a0 : ffffffe066d79118 a1 : 00000000000f0000 a2 : ffffffd010ada000 a3 : ffffffe00027ccf0 a4 : 0000000000040000 a5 : 0000000000040000 a6 : 0000000000f00000 a7 : ffffffe00027d6ba s2 : ffffffe00aacfc00 s3 : 0000000000000001 s4 : ffffffe00d98bc00 s5 : ffffffe0050495a8 s6 : ffffffe00aacfc00 s7 : ffffffe00423cdc8 s8 : 0000000000000000 s9 : ffffffe00458c0d0 s10: 0000000000000000 s11: 0000000000000000 t3 : 2699545dc3e5be00 t4 : ffffffc401031f97 t5 : ffffffc401031f99 t6 : ffffffe00f58c1f4 status: 0000000000000100 badaddr: 0000000000000000 cause: 0000000000000003 Call Trace: [] task_ctx_sched_out+0x5c/0x60 kernel/events/core.c:2668 [] ctx_resched+0xd6/0x1ba kernel/events/core.c:2719 [] __perf_install_in_context+0x214/0x47c kernel/events/core.c:2801 [] remote_function kernel/events/core.c:91 [inline] [] remote_function+0xa8/0xc0 kernel/events/core.c:71 [] generic_exec_single+0x1a6/0x212 kernel/smp.c:293 [] smp_call_function_single+0x134/0x2ba kernel/smp.c:513 [] task_function_call+0x90/0xee kernel/events/core.c:119 [] perf_install_in_context+0x174/0x2e6 kernel/events/core.c:2902 [] __do_sys_perf_event_open+0x10ea/0x199e kernel/events/core.c:12169 [] sys_perf_event_open+0x34/0x46 kernel/events/core.c:11775 [] ret_from_syscall+0x0/0x2 irq event stamp: 1944 hardirqs last enabled at (1943): [] mod_memcg_lruvec_state include/linux/memcontrol.h:979 [inline] hardirqs last enabled at (1943): [] mod_objcg_state mm/slab.h:296 [inline] hardirqs last enabled at (1943): [] memcg_slab_post_alloc_hook+0x2ea/0x46a mm/slab.h:327 hardirqs last disabled at (1944): [] generic_exec_single+0x1a2/0x212 kernel/smp.c:292 softirqs last enabled at (1900): [] spin_unlock_bh include/linux/spinlock.h:399 [inline] softirqs last enabled at (1900): [] release_sock+0xf6/0x122 net/core/sock.c:3085 softirqs last disabled at (1898): [] spin_lock_bh include/linux/spinlock.h:359 [inline] softirqs last disabled at (1898): [] release_sock+0x2a/0x122 net/core/sock.c:3072 ---[ end trace 757ee55d22552400 ]--- --- This report is generated by a bot. 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