From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oa1-f69.google.com (mail-oa1-f69.google.com [209.85.160.69]) (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 ED15C2C031B for ; Tue, 27 Jan 2026 03:05:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.69 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769483104; cv=none; b=TARMzcWmemxw6wSMAWNfUa9T+b+UIUgt0FhDrSzUu/qTlDCpUA/mWr2BNi5WYp37VnYndxh5vudjVR7IQQdXMt0ivnI+prY4rdZP0zk20kpNIloSaX1Sf71nVawGO3JCwgk+eWCYng/L+tlQnbP69/CeEGC12A6XvCoxdJ6R29A= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769483104; c=relaxed/simple; bh=xQcMF3nwztJzkiYzecEiHvvKVrtvtok1TeUc+KsVkQs=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=OBsnyM8eLAdgi3WWf5lUI9vFlOFARHNJIVXTDiWqN4JWC1L3120lJg38YbTRiWbG8T9dIno45uocjp1icg4GABYoEuHwXDLuLILe1sBMqdTOcXVw0QQADa5m0S2I5/shRKq+I/BvReWclshC05QUJ/s4fI/ETSiLCHlLnrvUpw8= 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=209.85.160.69 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-oa1-f69.google.com with SMTP id 586e51a60fabf-4046864f5e7so8010114fac.0 for ; Mon, 26 Jan 2026 19:05:02 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1769483102; x=1770087902; 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=l/80fiSKYAnW2bR628EG4/zo4HCTuAtOW0w4t6MUhA8=; b=u7F7U1aRQOcfz5mL6d5EB7C28Suy+2p8BNWp0OyYjp4sOy4Fq2CCFZ1NsiSpSK4r0w Oz053SS84hbvKQ+s8/4sUVJqDSVZO7sWlGUHv5FSI1zVNFRZ2tePGB73njdvSPZXK8be DqfHaLKX8H9KtAUwWdfn8ET28CgInXCKaUp2XzPTovlgcNNQfuoO3qUX4Y4HZ9B8TKwz Tu9wMypl8eiVrYSk7b0+nQDqkq6FnT17QtiNIa8xj29r8ShZ+kAgjjI23ZP/aXRhJCOb MdKx82zKJ9Z5PaKzPZAfXsYciCiF48jhKNJ/u/bbKIx/naIW1oppzfcgw8kYWikcdI5K 2DLA== X-Forwarded-Encrypted: i=1; AJvYcCUTk9POHpd+NXvzy+amBgDRWBTCkWZgeg6fek4WXY1oSFhRiA2V7gvMpMafMHq9sVJuRRSy7Aa7R2vTIaE=@vger.kernel.org X-Gm-Message-State: AOJu0Yw4eCCXjKo3lg8a2EJm9ZNttJCbdWau/V/Q33PCQ11AtxPGvEel 2508QuB+xGjnrzO+NlEp8Zp7FT4HTvJmldi8MZARpe2kNsWXR7pfZ5wd2xHCdwe5oNLFsDxTQHz VnQvUWQ7pZY9dH262MnqjowvF51ZPoKul3XPsb8Sy47CHqhKTX/M/0Xng4Ew= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:3105:b0:662:b831:b830 with SMTP id 006d021491bc7-662f20dc9d8mr139389eaf.65.1769483102085; Mon, 26 Jan 2026 19:05:02 -0800 (PST) Date: Mon, 26 Jan 2026 19:05:02 -0800 In-Reply-To: <20260127023506.15247-1-kartikey406@gmail.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69782b5e.050a0220.c9109.000f.GAE@google.com> Subject: Re: [syzbot] [mm?] INFO: rcu detected stall in schedule_tail (8) From: syzbot To: kartikey406@gmail.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot tried to test the proposed patch but the build/boot failed: ./include/linux/mm.h:3238:1: error: attributes should be specified before the declarator in a function definition ./include/linux/mm.h:3264:16: error: implicit declaration of function 'ptlock_ptr'; did you mean 'pte_lockptr'? [-Wimplicit-function-declaration] ./include/linux/mm.h:3264:16: error: returning 'int' from a function with return type 'spinlock_t *' {aka 'struct spinlock *'} makes pointer from integer without a cast [-Wint-conversion] ./include/linux/mm.h:3271:16: error: returning 'int' from a function with return type 'spinlock_t *' {aka 'struct spinlock *'} makes pointer from integer without a cast [-Wint-conversion] ./include/linux/mm.h:3286:24: error: passing argument 1 of 'spinlock_check' makes pointer from integer without a cast [-Wint-conversion] ./include/linux/mm.h:3409:16: error: returning 'int' from a function with return type 'spinlock_t *' {aka 'struct spinlock *'} makes pointer from integer without a cast [-Wint-conversion] Tested on: commit: fcb70a56 Merge tag 'vfs-6.19-rc8.fixes' of git://git.k.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=f1fac0919970b671 dashboard link: https://syzkaller.appspot.com/bug?extid=42836f91edd58eb82c6a compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44 patch: https://syzkaller.appspot.com/x/patch.diff?x=163c705a580000