From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@bugzilla.kernel.org Subject: [Bug 66821] New: "BUG: soft lockup" in proc_fd_link, causing freeze Date: Tue, 10 Dec 2013 17:01:34 +0000 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit To: linux-ext4@vger.kernel.org Return-path: Received: from mail.kernel.org ([198.145.19.201]:52506 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754073Ab3LJRBl (ORCPT ); Tue, 10 Dec 2013 12:01:41 -0500 Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id CCD4D204D1 for ; Tue, 10 Dec 2013 17:01:39 +0000 (UTC) Received: from bugzilla2.web.kernel.org (bugzilla2.web.kernel.org [172.20.200.52]) by mail.kernel.org (Postfix) with ESMTP id D3D7920529 for ; Tue, 10 Dec 2013 17:01:34 +0000 (UTC) Sender: linux-ext4-owner@vger.kernel.org List-ID: https://bugzilla.kernel.org/show_bug.cgi?id=66821 Bug ID: 66821 Summary: "BUG: soft lockup" in proc_fd_link, causing freeze Product: File System Version: 2.5 Kernel Version: 3.13.0-rc3 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: high Priority: P1 Component: ext4 Assignee: fs_ext4@kernel-bugs.osdl.org Reporter: andreas.reis@gmail.com Regression: No Created attachment 118011 --> https://bugzilla.kernel.org/attachment.cgi?id=118011&action=edit dmesg output during progressing freeze Getting this since a few days randomly either as immediate freeze or progressing system freeze. I'm not sure if that's the same bug though (nor if I put this report in the right product/component category, just guessing by the trace). It starts with general protection fault: 0000 [#1] PREEMPT SMP path_get+0x15/0x30 proc_fd_link+0x9e/0xf0 proc_pid_readlink+0x3f/0xe0 SyS_readlinkat+0xeb/0x130 system_call_fastpath+0x1a/0x1f and becomes BUG: soft lockup - CPU#5 stuck for 23s! [chrome-sandbox:11068] proc_fd_link+0x69/0xf0 proc_pid_readlink+0x3f/0xe0 SyS_readlinkat+0xeb/0x130 system_call_fastpath+0x1a/0x1f Notes: * This is based only on one dmesg output; I haven't yet gotten around to compare that of different freezes. * Kernel is self-compiled via the current sources (17b2112f) in Torvald's git; distro is Arch. * Always appears to happen after the system has run for a while, ie. not right after boot. * root is btrfs, home is ext4, var is reiserfs. -- You are receiving this mail because: You are watching the assignee of the bug.