From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.15]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F3FD5386441 for ; Thu, 8 Oct 2026 05:36:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.15 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791437797; cv=none; b=XjJN+0+1ye01hz8ye58XX9H1rZZmqiodZf5dDLeZOYb69v9V6Xxu1uNydhyyfea0Sqc2v+ci0L1XuDujIa5jBcsxzgf+Ijz42rHvlPjfWv2KNj26loo9YLgLmKU7wV7vgyi3LqQlbwIgXWKi6KGvjsK2mryqUENec5BUs3+JlCk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791437797; c=relaxed/simple; bh=r6UU5bGPsQgav1u3ssZ1Uk4b1N+MN1c1e5CDO4eRIzk=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=KAcQY7vt66LrbA8bbfddMaS5go8D7USZQrtJ2WVjEbQRAcHA0nm7Z8efQEGbnfVy3JNnx/6qoXPJne+yJ6oLRGho82VZ42PAdpyu0yu50bwVDqybzjjv8vnDh/pj/zuvs+isxlaK0i5hP5boJdlFauCBV+CkLxRoIkN6TtfcUro= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=NP1rQQkM; arc=none smtp.client-ip=198.175.65.15 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="NP1rQQkM" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1791437795; x=1822973795; h=date:from:to:cc:subject:message-id:mime-version; bh=r6UU5bGPsQgav1u3ssZ1Uk4b1N+MN1c1e5CDO4eRIzk=; b=NP1rQQkMSL0SCe5YWsxbqM4pGKI5kH4g9rAmE9TMdzLvDRbp/5cjE+jq AryPznDx7UD47evNXJiPAJvXLV2eGUk1YH5XyWqDu/QH9fSsBTmtLFFAu DVn9iI32yG3lBZ8vPkjB/vm9ek/m5bz6qfBgo5OXWGn/ySDIJfe9QSSDx 20xh3DoB7jjkhammiHo2mqNq6q55bl7Jr3/UlGOohkjVK00b3OY3W6yE/ ++VFbksxVwn7EeY33Cgdh/9OttRa+9nTgaBjPW43YVKZnBtfBMLuwpxke rH5YAvTwiMGg5fJwPrGBjQ9M3FqsvPMxv2oIte9BtsrgUXyMOHGKX9otT w==; X-CSE-ConnectionGUID: iVaPiqYUTESaDbkUZEg2mg== X-CSE-MsgGUID: gcyl1ru5RnmknX5D7clmJA== X-IronPort-AV: E=McAfee;i="6800,10657,11928"; a="207780" X-IronPort-AV: E=Sophos;i="6.27,145,1787036400"; d="scan'208";a="207780" Received: from fmviesa001.fm.intel.com ([10.60.135.141]) by orvoesa107.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Oct 2026 22:36:34 -0700 X-CSE-ConnectionGUID: q3aD8Z/ARc22KaNEBX+aMw== X-CSE-MsgGUID: ECfCvq+5QhGyLfRW5xbdlg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,145,1787036400"; d="scan'208";a="27222" Received: from ly-workstation.sh.intel.com (HELO ly-workstation) ([10.239.182.64]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Oct 2026 22:36:33 -0700 Date: Thu, 8 Oct 2026 13:36:29 +0800 From: kernel test robot To: "Liam R. Howlett" Cc: oe-lkp@lists.linux.dev, lkp@intel.com, maple-tree@lists.infradead.org, linux-mm@kvack.org, yi1.lai@intel.com Subject: [liam:maple_marks_v4] [maple_tree] f44e0ea8d4: WARNING:at_lib/maple_tree.c:#node_clear_tail Message-ID: <202610081209.cf3a5ca-lkp@intel.com> Precedence: bulk X-Mailing-List: oe-lkp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Hello, kernel test robot noticed "WARNING:at_lib/maple_tree.c:#node_clear_tail" on: commit: f44e0ea8d474ab9cb65305ae34780f1984515e1c ("maple_tree: Explicitly set node values to avoid clearing entire node") https://git.kernel.org/cgit/linux/kernel/git/liam/linux.git maple_marks_v4 in testcase: boot config: x86_64-randconfig-011-20260914 compiler: clang-22 test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 4 -m 16G (please refer to attached dmesg/kmsg for entire log/backtrace) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-lkp/202610081209.cf3a5ca-lkp@intel.com [ 2.612810][ T0] ------------[ cut here ]------------ [ 2.615535][ T0] WARNING: lib/maple_tree.c:2447 at node_clear_tail+0x3ee/0x480, CPU#0: swapper/0/0 [ 2.620115][ T0] Modules linked in: [ 2.622063][ T0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Tainted: G T 7.3.0-rc1-00774-gf44e0ea8d474 #1 PREEMPT(full) [ 2.627914][ T0] Tainted: [T]=RANDSTRUCT [ 2.630014][ T0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 2.635145][ T0] RIP: 0010:node_clear_tail (maple_tree.c:2447) [ 2.637935][ T0] Code: 05 cf b0 7e 01 48 3b 44 24 20 75 58 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d 31 c0 31 c9 31 ff 31 d2 31 f6 c3 e8 e2 af b5 fb <0f> 0b eb d0 e8 d9 af b5 fb 48 c7 c7 c0 5e aa b6 48 8b 74 24 08 e8 All code ======== 0: 05 cf b0 7e 01 add $0x17eb0cf,%eax 5: 48 3b 44 24 20 cmp 0x20(%rsp),%rax a: 75 58 jne 0x64 c: 48 83 c4 28 add $0x28,%rsp 10: 5b pop %rbx 11: 41 5c pop %r12 13: 41 5d pop %r13 15: 41 5e pop %r14 17: 41 5f pop %r15 19: 5d pop %rbp 1a: 31 c0 xor %eax,%eax 1c: 31 c9 xor %ecx,%ecx 1e: 31 ff xor %edi,%edi 20: 31 d2 xor %edx,%edx 22: 31 f6 xor %esi,%esi 24: c3 ret 25: e8 e2 af b5 fb call 0xfffffffffbb5b00c 2a:* 0f 0b ud2 <-- trapping instruction 2c: eb d0 jmp 0xfffffffffffffffe 2e: e8 d9 af b5 fb call 0xfffffffffbb5b00c 33: 48 c7 c7 c0 5e aa b6 mov $0xffffffffb6aa5ec0,%rdi 3a: 48 8b 74 24 08 mov 0x8(%rsp),%rsi 3f: e8 .byte 0xe8 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: eb d0 jmp 0xffffffffffffffd4 4: e8 d9 af b5 fb call 0xfffffffffbb5afe2 9: 48 c7 c7 c0 5e aa b6 mov $0xffffffffb6aa5ec0,%rdi 10: 48 8b 74 24 08 mov 0x8(%rsp),%rsi 15: e8 .byte 0xe8 [ 2.647533][ T0] RSP: 0000:ffffffffb5a07980 EFLAGS: 00010046 [ 2.650539][ T0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 2.654515][ T0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 2.658372][ T0] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000 [ 2.662307][ T0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000010 [ 2.666281][ T0] R13: 0000000000000010 R14: ffffffffb572b002 R15: ffff8881022e8400 [ 2.670252][ T0] FS: 0000000000000000(0000) GS:0000000000000000(0000) knlGS:0000000000000000 [ 2.674548][ T0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.677741][ T0] CR2: ffff88843ffff000 CR3: 000000009d634000 CR4: 00000000000000b0 [ 2.681737][ T0] Call Trace: [ 2.683296][ T0] [ 2.684659][ T0] mas_wr_store_entry (maple_tree.c:3805) [ 2.687291][ T0] ? early_irq_init (irq/irqdesc.c:195) [ 2.689639][ T0] ? start_kernel (main.c:1088) [ 2.691946][ T0] ? x86_64_start_reservations (x86/kernel/head64.c:310) [ 2.694726][ T0] ? x86_64_start_kernel (x86/kernel/head64.c:291) [ 2.697359][ T0] ? common_startup_64 (x86/kernel/head_64.S:418) [ 2.699845][ T0] mas_store_gfp (maple_tree.c:5973) [ 2.702060][ T0] early_irq_init (irq/irqdesc.c:195) [ 2.704262][ T0] start_kernel (main.c:1088) [ 2.706233][ T0] x86_64_start_reservations (x86/kernel/head64.c:310) [ 2.708590][ T0] x86_64_start_kernel (x86/kernel/head64.c:291) [ 2.710834][ T0] common_startup_64 (x86/kernel/head_64.S:418) [ 2.712798][ T0] [ 2.714169][ T0] irq event stamp: 0 [ 2.716054][ T0] hardirqs last enabled at (0): 0x0 [ 2.719576][ T0] hardirqs last disabled at (0): 0x0 [ 2.722938][ T0] softirqs last enabled at (0): 0x0 [ 2.725737][ T0] softirqs last disabled at (0): 0x0 [ 2.729141][ T0] ---[ end trace 0000000000000000 ]--- The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20261008/202610081209.cf3a5ca-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki