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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E313FC433EF for ; Thu, 5 May 2022 09:47:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1354171AbiEEJvE (ORCPT ); Thu, 5 May 2022 05:51:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34316 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1354110AbiEEJvB (ORCPT ); Thu, 5 May 2022 05:51:01 -0400 Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C558939813 for ; Thu, 5 May 2022 02:47:22 -0700 (PDT) Received: by mail-io1-f71.google.com with SMTP id k2-20020a0566022a4200b00654c0f121a9so2546593iov.1 for ; Thu, 05 May 2022 02:47:22 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=eV38iSYAFGjXt9JWlkIOLhHqsRAqY/eXwKHu9dO4WfM=; b=qFslF1Fb3nYTc0dXZYPAF328rN03mArqs4nYwqQP0it2ZTgX/XTvV34i4BIFFrRiTX dU4+1qLubMc4CoKL2pBNR+PlOVBdSPXJ0Nd4UBsp9iUYLzlkQw6fZCPpJ1wtWz98uePn BBTC6L2SW5o+S26fW+ThAtdORVDPeh0GYX+xHWvMxxbbsld6qfpgWrsvujLSYNpBWnYU bu/CgvNdjqzAgMo8pZTJGxyMyallgnJBdGR45+IX6iaQO7sAHw/Xof/g55T+yCIiW4Zi /brwH1eOwy0vgj2Kl4ni3O7xkHgAPTdPp698xvra5rW6KqRMPlK+PceD/RwTzdc3UgJP nUBw== X-Gm-Message-State: AOAM533tMAEpt/UfMZ/CvpvQGZjDnbtBlY9hlcCWTbPyR9uUjIbpzEwK GqlLoFyszE3LWVUIEWdS5Kpv9noO+Zk3FfEkS539jerYc1YZ X-Google-Smtp-Source: ABdhPJxL5XoOFhIWkIgGimlGzxLGs+KghxbThlHH0A4u3iFDaS4+GhJKngtIFRIFACuIz4GSRic/MRITFWOHKXmjlxt7C123rDYQ MIME-Version: 1.0 X-Received: by 2002:a05:6602:2e07:b0:65a:5818:2b3d with SMTP id o7-20020a0566022e0700b0065a58182b3dmr8054370iow.128.1651744041879; Thu, 05 May 2022 02:47:21 -0700 (PDT) Date: Thu, 05 May 2022 02:47:21 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000e04c5605de40a0dc@google.com> Subject: [syzbot] inconsistent lock state in rxrpc_put_call From: syzbot To: davem@davemloft.net, dhowells@redhat.com, edumazet@google.com, kuba@kernel.org, linux-afs@lists.infradead.org, linux-kernel@vger.kernel.org, marc.dionne@auristor.com, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: 48cec73a891c net: lan966x: Fix compilation error git tree: net-next console output: https://syzkaller.appspot.com/x/log.txt?x=135956d8f00000 kernel config: https://syzkaller.appspot.com/x/.config?x=4f67580b287bc88d dashboard link: https://syzkaller.appspot.com/bug?extid=7ff43f67d38f2d8e07ef compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 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+7ff43f67d38f2d8e07ef@syzkaller.appspotmail.com ================================ WARNING: inconsistent lock state 5.18.0-rc4-syzkaller-00910-g48cec73a891c #0 Not tainted -------------------------------- inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. swapper/0/0 [HC0[0]:SC1[1]:HE1:SE0] takes: ffff88805a1a4038 (&rxnet->call_lock){+.?.}-{2:2}, at: rxrpc_put_call+0x175/0x300 net/rxrpc/call_object.c:634 {SOFTIRQ-ON-W} state was registered at: lock_acquire kernel/locking/lockdep.c:5641 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5606 __raw_write_lock include/linux/rwlock_api_smp.h:209 [inline] _raw_write_lock+0x2a/0x40 kernel/locking/spinlock.c:300 rxrpc_service_prealloc_one+0xacf/0x1440 net/rxrpc/call_accept.c:143 rxrpc_kernel_charge_accept+0xd4/0x120 net/rxrpc/call_accept.c:487 afs_charge_preallocation+0xba/0x310 fs/afs/rxrpc.c:733 afs_open_socket+0x294/0x360 fs/afs/rxrpc.c:92 afs_net_init+0xa75/0xec0 fs/afs/main.c:126 ops_init+0xaf/0x470 net/core/net_namespace.c:134 __register_pernet_operations net/core/net_namespace.c:1146 [inline] register_pernet_operations+0x35a/0x850 net/core/net_namespace.c:1215 register_pernet_device+0x26/0x70 net/core/net_namespace.c:1302 afs_init+0xe6/0x218 fs/afs/main.c:189 do_one_initcall+0x103/0x650 init/main.c:1298 do_initcall_level init/main.c:1371 [inline] do_initcalls init/main.c:1387 [inline] do_basic_setup init/main.c:1406 [inline] kernel_init_freeable+0x6b1/0x73a init/main.c:1613 kernel_init+0x1a/0x1d0 init/main.c:1502 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 irq event stamp: 474002 hardirqs last enabled at (474002): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:645 hardirqs last disabled at (474001): [] sysvec_apic_timer_interrupt+0xb/0xc0 arch/x86/kernel/apic/apic.c:1097 softirqs last enabled at (473854): [] invoke_softirq kernel/softirq.c:432 [inline] softirqs last enabled at (473854): [] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637 softirqs last disabled at (473975): [] invoke_softirq kernel/softirq.c:432 [inline] softirqs last disabled at (473975): [] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&rxnet->call_lock); lock(&rxnet->call_lock); *** DEADLOCK *** 1 lock held by swapper/0/0: #0: ffffc90000007d70 ((&call->timer)){+.-.}-{0:0}, at: lockdep_copy_map include/linux/lockdep.h:35 [inline] #0: ffffc90000007d70 ((&call->timer)){+.-.}-{0:0}, at: call_timer_fn+0xd5/0x6b0 kernel/time/timer.c:1411 stack backtrace: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.18.0-rc4-syzkaller-00910-g48cec73a891c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 print_usage_bug kernel/locking/lockdep.c:3935 [inline] valid_state kernel/locking/lockdep.c:3947 [inline] mark_lock_irq kernel/locking/lockdep.c:4150 [inline] mark_lock.part.0.cold+0x18/0xd8 kernel/locking/lockdep.c:4607 mark_lock kernel/locking/lockdep.c:4571 [inline] mark_usage kernel/locking/lockdep.c:4502 [inline] __lock_acquire+0x11e7/0x56c0 kernel/locking/lockdep.c:4983 lock_acquire kernel/locking/lockdep.c:5641 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5606 __raw_write_lock include/linux/rwlock_api_smp.h:209 [inline] _raw_write_lock+0x2a/0x40 kernel/locking/spinlock.c:300 rxrpc_put_call+0x175/0x300 net/rxrpc/call_object.c:634 rxrpc_call_timer_expired+0xa1/0xc0 net/rxrpc/call_object.c:58 call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1421 expire_timers kernel/time/timer.c:1466 [inline] __run_timers.part.0+0x679/0xa80 kernel/time/timer.c:1737 __run_timers kernel/time/timer.c:1715 [inline] run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1750 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:645 RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:29 [inline] RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline] RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:130 [inline] RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:111 [inline] RIP: 0010:acpi_idle_do_entry+0x1c6/0x250 drivers/acpi/processor_idle.c:551 Code: 89 de e8 ad a6 0b f8 84 db 75 ac e8 c4 a2 0b f8 e8 2f eb 11 f8 eb 0c e8 b8 a2 0b f8 0f 00 2d d1 4b c5 00 e8 ac a2 0b f8 fb f4 <9c> 5b 81 e3 00 02 00 00 fa 31 ff 48 89 de e8 27 a5 0b f8 48 85 db RSP: 0018:ffffffff8ba07d60 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffffffff8babc700 RSI: ffffffff896d8694 RDI: 0000000000000000 RBP: ffff88801639f864 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff817f71e8 R11: 0000000000000000 R12: 0000000000000001 R13: ffff88801639f800 R14: ffff88801639f864 R15: ffff888019952004 acpi_idle_enter+0x361/0x500 drivers/acpi/processor_idle.c:686 cpuidle_enter_state+0x1b1/0xc80 drivers/cpuidle/cpuidle.c:237 cpuidle_enter+0x4a/0xa0 drivers/cpuidle/cpuidle.c:351 call_cpuidle kernel/sched/idle.c:155 [inline] cpuidle_idle_call kernel/sched/idle.c:236 [inline] do_idle+0x3e8/0x590 kernel/sched/idle.c:303 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:400 start_kernel+0x47f/0x4a0 init/main.c:1140 secondary_startup_64_no_verify+0xc3/0xcb ---------------- Code disassembly (best guess): 0: 89 de mov %ebx,%esi 2: e8 ad a6 0b f8 callq 0xf80ba6b4 7: 84 db test %bl,%bl 9: 75 ac jne 0xffffffb7 b: e8 c4 a2 0b f8 callq 0xf80ba2d4 10: e8 2f eb 11 f8 callq 0xf811eb44 15: eb 0c jmp 0x23 17: e8 b8 a2 0b f8 callq 0xf80ba2d4 1c: 0f 00 2d d1 4b c5 00 verw 0xc54bd1(%rip) # 0xc54bf4 23: e8 ac a2 0b f8 callq 0xf80ba2d4 28: fb sti 29: f4 hlt * 2a: 9c pushfq <-- trapping instruction 2b: 5b pop %rbx 2c: 81 e3 00 02 00 00 and $0x200,%ebx 32: fa cli 33: 31 ff xor %edi,%edi 35: 48 89 de mov %rbx,%rsi 38: e8 27 a5 0b f8 callq 0xf80ba564 3d: 48 85 db test %rbx,%rbx --- This report is generated by a bot. 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