From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f197.google.com (mail-il1-f197.google.com [209.85.166.197]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F33922248B0 for ; Thu, 26 Jun 2025 23:09:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.197 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750979345; cv=none; b=rvOkiYroSToP/7PBa7FjzYGQW2X3tOjAvimzhvx2gatorBpo84pWTUPodLvuvwXl/PkuRiTcCN9EG9LHVSeOzBI+jXqyLYb10Fk4XPdJlUOTv5Ap5X6HVSLnv/CcbRvsllgaGrSAOfubdvoh47ZHthUdRBbJC26Vl1BDzcUMstU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750979345; c=relaxed/simple; bh=SaiMvf0QIsnsjPYNJJlgOig5FOT8xxYY+A0eHMeBf7s=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=ZEFbF7p5LrSQ2T/8I7ldvc+6y1qQoOyFiULjmM0rwYlBTn59t1Vm259wmaaopXESBJMDZb17G8mo2FzaiSz064zCs3rN9H3rfxxZxZ5lZ3Jri53gFFON/kQr/HMDebyx7WI70D+XBPR6DIkDqeTXOvvHWkZo2dA3Vl3Tqd0CFQk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.197 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-il1-f197.google.com with SMTP id e9e14a558f8ab-3ddafe52d04so37235795ab.1 for ; Thu, 26 Jun 2025 16:09:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1750979343; x=1751584143; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=6XgX3w4+dt/shPHb/cqrupX6BHtHSMszwKNRKm1TVO4=; b=LG/S+T2fOArNyxlBTXhkOIE4fNuSS7xg8MqoZEVWS5AJrslASPfQ7y0Ix1498MrS4R 8iA52CHRAs9o+xOlrR7XjLrM95Scq1eTHfdyfV99m8xGOd+xcuRPCgbIhgNhIZJ5Hnpx AnQRIkRE7ln7610GXyVbuq+ZbtAeiZsopDSmqDPoFJOffpA3dp0NqAUlOz3t3DteUpEK HbpShgYIOzjfFW4uY5ACjdxYJg1hDYtHYsJqVdbnIv3i8lB02W7rHKR/5wRGg84lO26q PNvOoa2EsKnH1AjniVgA0XiJhz8VtpEctKxtBDJ1/hxC7/kxF0Uw1aAAbqJNkzISozp2 /o5w== X-Forwarded-Encrypted: i=1; AJvYcCUqnMxgQQ6Q/JZha0yYBDrZIN+6DBH0mhYL9+R13AK2sXti6b0PNNqdY8NMe+UasO2QI8xq3jxh6tYU1AA=@vger.kernel.org X-Gm-Message-State: AOJu0YyE8VHYPcL45RWc4jHArqfktdGGJHHX3upTrP6RpUSjkUTdgCzI pMzviZNtZxw8OJFH3kOfkNNka2Fs6Dg2u0MkcSh9I2qlZVh8XcgyUk8f06JFxMicoWBSjkJrzvV Rjhw2lqXi9QasjiK3NE2kKLfbll5cN/vlK6zeFOrYkywO7p9LcLf0mF/n2YE= X-Google-Smtp-Source: AGHT+IFyWjwoTS+TP+icDo+mFvUezoIYSka9m5lFmfsgpu49z8rnX0MJlzzLOrgIpaoiUKf+tlCIBY5DQtC6/F1sdCl63KOwQIB9 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:2589:b0:3df:460a:ec3c with SMTP id e9e14a558f8ab-3df4acc520fmr18776735ab.22.1750979343102; Thu, 26 Jun 2025 16:09:03 -0700 (PDT) Date: Thu, 26 Jun 2025 16:09:03 -0700 In-Reply-To: <20250626225210.1924-1-hdanton@sina.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <685dd30f.a00a0220.2e5631.0390.GAE@google.com> Subject: Re: [syzbot] [rdma?] WARNING in rxe_skb_tx_dtor From: syzbot To: hdanton@sina.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: WARNING in rxe_skb_tx_dtor ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1038 at drivers/infiniband/sw/rxe/rxe_net.c:357 rxe_skb_tx_dtor+0x8b/0x2a0 drivers/infiniband/sw/rxe/rxe_net.c:357 Modules linked in: CPU: 0 UID: 0 PID: 1038 Comm: kworker/u4:6 Not tainted 6.16.0-rc3-syzkaller-gf02769e7f272-dirty #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Workqueue: rxe_wq do_work RIP: 0010:rxe_skb_tx_dtor+0x8b/0x2a0 drivers/infiniband/sw/rxe/rxe_net.c:357 Code: 80 3c 20 00 74 08 4c 89 ff e8 d1 64 81 f9 4d 8b 37 44 89 f6 83 e6 01 31 ff e8 e1 e5 1d f9 41 f6 c6 01 75 0e e8 f6 e0 1d f9 90 <0f> 0b 90 e9 b4 01 00 00 4c 89 ff e8 35 94 fd 01 48 89 c7 be 0e 00 RSP: 0018:ffffc900000079e8 EFLAGS: 00010246 RAX: ffffffff88a26d7a RBX: ffff888055e923c0 RCX: ffff8880330c2440 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff887bc1c4 R10: dffffc0000000000 R11: ffffffff88a26cf0 R12: dffffc0000000000 R13: 1ffff1100abd2483 R14: 0000000000025820 R15: ffff888033808000 FS: 0000000000000000(0000) GS:ffff88808d250000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f08899dcfc8 CR3: 0000000032fcf000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: skb_release_head_state+0xfe/0x250 net/core/skbuff.c:1139 napi_consume_skb+0xd2/0x1e0 net/core/skbuff.c:-1 e1000_unmap_and_free_tx_resource drivers/net/ethernet/intel/e1000/e1000_main.c:1972 [inline] e1000_clean_tx_irq drivers/net/ethernet/intel/e1000/e1000_main.c:3864 [inline] e1000_clean+0x49d/0x2b00 drivers/net/ethernet/intel/e1000/e1000_main.c:3805 __napi_poll+0xc4/0x480 net/core/dev.c:7414 napi_poll net/core/dev.c:7478 [inline] net_rx_action+0x707/0xe30 net/core/dev.c:7605 handle_softirqs+0x286/0x870 kernel/softirq.c:579 do_softirq+0xec/0x180 kernel/softirq.c:480 __local_bh_enable_ip+0x17d/0x1c0 kernel/softirq.c:407 local_bh_enable include/linux/bottom_half.h:33 [inline] __neigh_event_send+0x9b/0x1560 net/core/neighbour.c:1194 neigh_event_send_probe include/net/neighbour.h:463 [inline] neigh_event_send include/net/neighbour.h:469 [inline] neigh_resolve_output+0x198/0x750 net/core/neighbour.c:1496 neigh_output include/net/neighbour.h:539 [inline] ip6_finish_output2+0x11fe/0x16a0 net/ipv6/ip6_output.c:141 __ip6_finish_output net/ipv6/ip6_output.c:-1 [inline] ip6_finish_output+0x234/0x7d0 net/ipv6/ip6_output.c:226 rxe_send drivers/infiniband/sw/rxe/rxe_net.c:391 [inline] rxe_xmit_packet+0x79e/0xa30 drivers/infiniband/sw/rxe/rxe_net.c:450 rxe_requester+0x1fea/0x3d20 drivers/infiniband/sw/rxe/rxe_req.c:805 rxe_sender+0x16/0x50 drivers/infiniband/sw/rxe/rxe_req.c:839 do_task drivers/infiniband/sw/rxe/rxe_task.c:127 [inline] do_work+0x1b1/0x6c0 drivers/infiniband/sw/rxe/rxe_task.c:187 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3321 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402 kthread+0x70e/0x8a0 kernel/kthread.c:464 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Tested on: commit: f02769e7 Merge tag 'devicetree-fixes-for-6.16-1' of gi.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1693008c580000 kernel config: https://syzkaller.appspot.com/x/.config?x=79da270cec5ffd65 dashboard link: https://syzkaller.appspot.com/bug?extid=8425ccfb599521edb153 compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 patch: https://syzkaller.appspot.com/x/patch.diff?x=13283b70580000