Received: by 2002:a05:6a10:206:0:0:0:0 with SMTP id 6csp2530326pxj; Mon, 17 May 2021 03:57:46 -0700 (PDT) X-Google-Smtp-Source: ABdhPJz9OZuh5CHvJ0mCXMZAY5vVQhl7QI3CH4vEdh8qAHYdExFxWMqP5yzulfDkgrEp18yCGPwC X-Received: by 2002:a5d:818b:: with SMTP id u11mr43521443ion.36.1621249066662; Mon, 17 May 2021 03:57:46 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1621249066; cv=none; d=google.com; s=arc-20160816; b=Atnl5JB9Jh1j87E0H2bOi77PWM53e66uCUXelpY9EGAXP09HMzBLLDAV8xDSna9wio aQXExvwVHc2P7plkvLYoeaVU8euqSG0uDV6i/Ix0ezv01yKcADrPijmkvGc3rRBlyueF 1ieeX2q+PGs5qvYno5B1wLK7Nme0U/amC6dO3zf/YYGTbvxNodRblmOzpxiCvEiNJkry l6L5W3XOyA/yjxvAkBAX7eLy+GkGVvHJCnZYfdhEbtGYUInr2HFjLVvhyjzlfe/7nfjw whVFn4ixWMv4WXZd+q69BF8rRA9mLzmupjh4M21c4P5LgjgaC9h9o/NL/kQ/wRp0KDUi TSCA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:to:from:subject:message-id:date:mime-version; bh=Mvw1ZMzypgw0dQW963IDZFGXoWO2KAZbgmwYDsY4n3I=; b=xczfEVnZVi3fejX9DZmwN5Ylui5ruxRLrUWMxwCd2vzp3ZPCXiyJnYUfHgWq7Hd0WZ YKgIZi/ZHnlr+2awWSuoCOXRJml7hBGuHy7TNAmsbYhV05uern/CoWJ9IS/w7tgiCcIR yKXuPCZs7ld60/l7XVjZ34Kekk+CdRVTaJiPiCQyKuUHf3lFk3rT9Wg7PLb7Y2hj8m61 vbHlOjiaKGvw7JNiIe/ItUlyVy1MLIFr9TWcLcEb5Bif7ojzItWVG1wICnrz429qqs8R b6pkTBuMyJdKl1XoeruMq8a6JSiGiUMtB1QFfDcjUrh38Rd3Oq/3r6FixRs7oEPEDk0p o59g== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id t10si10434138ilf.139.2021.05.17.03.57.33; Mon, 17 May 2021 03:57:46 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236593AbhEQK5n (ORCPT + 99 others); Mon, 17 May 2021 06:57:43 -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 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. 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.