From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) (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 64161168B7 for ; Fri, 9 Aug 2024 01:44:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.71 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723167856; cv=none; b=YmzrUf6DD03Chcyz4hL5qd+O1CKPWrK4rQJkFycEEpz8aOh0Svc7ZoTWx844ugU3abQmI23iEdiAeeL3ytvp+mzYFPLAhxXhNWqrhdqIGTwBye3+saz218Yc1LbH7tXyb8og3l5GPeinuVa9YdCAyxmAFI/LMB6YfB2V0/oFLd4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723167856; c=relaxed/simple; bh=brgWCkchBWHAj9Lz6L+tJO4Frn226hbQfzTKJ+6Bw8w=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=ZHbit4iCZXxBcocw0g1KblNtKy0MjXTOeXwusaMjZAL/4WKnj2cZGG2ji5D/6ygNjl/zsr4m2M/ykA/8IKxHJzP1OqQ5gXCnqeZTIZdJMNph6rkdnQfZsKXaLjG1jw5/bUnziu1YYV+S1KRE52/NNhzRFgbA8FeM8bcbR7dDooY= 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=209.85.166.71 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-io1-f71.google.com with SMTP id ca18e2360f4ac-81f7fa42463so175911439f.0 for ; Thu, 08 Aug 2024 18:44:15 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1723167854; x=1723772654; 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=DLet5s4ZSTdq7XeabZaViBYlDkouEcG/TvnL6kPkXN0=; b=p9vY18H4TTfU/prmqHVEOr6vNNEBFXjK/ZbNe25T6rIphWfrTDh0WMbUPlgpQUZHea Vk2IAdSgtUQaIAYGAWZitM3H5feJGgZ6pKrLsyWBfPmWznr8KsKwCpgaA+FJfuTjvKwZ 1/mwfdsG+7KeDYa0tae0w3ccmEBnVBCqPaRz8oVi4W9UZSUyTIXtN/k4EdXA0s3sNy9f e7Ce3rNmrlnQYJs9TvdRz/nmNF1oPRvz6YjhOByeDDHAwHhZ4AJTxKXAypt38DWLaaSw kI1pL21fsyvP2wKxoRBU0ep2F3n9gjW8JuN5srAVp0XUwDege3jiuhUeuDtt/jS3wabb onsQ== X-Gm-Message-State: AOJu0YyTa8QoBHGg0M6iG3tAGNmSHB714i5azikPtHBHtyvnLKPpJmlA ynIKKdUDFY1snL/ZN/4KrWwfdhCkUIJfD9Gkzk3Xden8jCNhL3L6dz5MkbZux/S9cqizjAZUE7r qh4a1bkNHiEFUENE92l3fec+oPHOzmaFNEuznG1QxhwhInQFSvBi64wI= X-Google-Smtp-Source: AGHT+IEM6/0AVZEjS7euN9gfW94wuBFTTnyc/WMWg6dQ8T5cE3VjElEK0cgjXW0ieOIidJ+Rx8C0HQUMDXWYYtgPeqKCj/gCqYl4 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6602:1545:b0:805:e4ad:66d6 with SMTP id ca18e2360f4ac-8225458374dmr11028139f.0.1723167854552; Thu, 08 Aug 2024 18:44:14 -0700 (PDT) Date: Thu, 08 Aug 2024 18:44:14 -0700 In-Reply-To: <0000000000007ec511061f00a7b2@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000dbfb39061f364783@google.com> Subject: Re: [syzbot] Re: [syzbot] [v9fs?] WARNING in v9fs_begin_writeback From: syzbot To: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org. *** Subject: Re: [syzbot] [v9fs?] WARNING in v9fs_begin_writeback Author: lizhi.xu@windriver.com wait for writeback done before release inode #syz test: upstream c0ecd6388360 diff --git a/fs/9p/vfs_dir.c b/fs/9p/vfs_dir.c index e0d34e4e9076..cddbd7cc39e5 100644 --- a/fs/9p/vfs_dir.c +++ b/fs/9p/vfs_dir.c @@ -218,7 +218,13 @@ int v9fs_dir_release(struct inode *inode, struct file *filp) if ((S_ISREG(inode->i_mode)) && (filp->f_mode & FMODE_WRITE)) retval = filemap_fdatawrite(inode->i_mapping); + printk("del, ind: %p, ino: %lx, ino is dirty: %d, %s\n", inode, inode->i_ino, inode->i_state & I_DIRTY, __func__); spin_lock(&inode->i_lock); + if (inode->i_state & I_DIRTY) { + spin_unlock(&inode->i_lock); + wait_on_bit_timeout(&inode->i_state, ~I_DIRTY, TASK_UNINTERRUPTIBLE, HZ*100); + spin_lock(&inode->i_lock); + } hlist_del(&fid->ilist); spin_unlock(&inode->i_lock); put_err = p9_fid_put(fid);