From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750888AbWHKInx (ORCPT ); Fri, 11 Aug 2006 04:43:53 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750893AbWHKInx (ORCPT ); Fri, 11 Aug 2006 04:43:53 -0400 Received: from tiu.fh-brandenburg.de ([195.37.0.8]:59896 "EHLO tiu.fh-brandenburg.de") by vger.kernel.org with ESMTP id S1750887AbWHKInw (ORCPT ); Fri, 11 Aug 2006 04:43:52 -0400 Date: Fri, 11 Aug 2006 10:43:44 +0200 From: Markus Dahms To: linux-kernel@vger.kernel.org Subject: [BUG] "held lock freed!" on 2.6.18-rc4-gc4e321b8, not reproducible Message-ID: <20060811084344.GA29613@fh-brandenburg.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4.1i Face: iVBORw0KGgoAAAANSUhEUgAAADAAAAAwBAMAAAClLOS0AAAAKlBMVEW4lkTW0MHdtVQ7MRgk FwEZCgD+/v7z8vMKAADRrlz///9oVix+bkv+/v0NL+OXAAACaklEQVQ4jV2UMYviQBTHQzbN kkokJ4iFTOsVJ+yxObDwwAUXbWQVAusnmE62k1wVU8Xqzkas0mRg2AU37HIuXnGeegY3n0DI d7k3M5moNxAzzm/+8978Z14UmjbMfkgpjgusE1CFnraS1bD6Rd49A77ZUvRm9T+A6VPeUxHS ndU5CEAQImgvzu4UBEyAFFVF5dfx8CyGb871q0Ztjso3RZqcgLynW/2456hosZOAbYJE80Wt QHLRJ3TROV0qP9o4bAu2hyoSgCAg5rLJ8sT+/RFASjBxw5KBHO6Rdn1cikSt5k4k10faPssq sEfv429UKo6ARO3FNZVgsc+WstOUUvAXAJaCZ3g/wfPogUKeB0TgAg5u0bZIAwYCJqgGaX6P t8wroZACCdrSXQME7J0IUBnz80jA76UQSPA1Pai8t6ge5HgCoMMB9s1fd0dB8iABt++A03EI +HYhAInqzD6cgT/MXAB+9308TJIDphLMhML2tCpNkiTAQQo+dkCvUKMOZibitM5AFL4Wz0G6 1IZ5dtKMt4kIvlUX+0G8GkrwUP8hFFFdq3123VVmIgdYYafteL83zgc+jAFMfqYbbLhfUFn4 yxVpDGr31p6qVpyhjCGywpTkBma3dQm7CURWsI+E246pHZt1uEwwJzc0Qgn4PNuDlUmp14uN ELJit+SQ3qZZ56lktTfWSzg5LTW/P+sMzJZa1hohRMNZGfhdvbNlRVue8tuTlQHZzpxRWL6c Kt91Xg5ZRUXzmzms07hamlWWTwaMtjLVrHh91xPfjAzY7nJpxUNSyPGvzBGQtevWMu/B3axL 4Exw9o/+AxnogmiXX+X9AAAAAElFTkSuQmCC Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hello, I got the following bug on 2.6.18-rc4+ after booting but could not reproduce it. So it may be a race condition or just a hardware bug. GIT c4e321b85a89d7cd392d3105b2c033a6c58ed337 from .../gregkh/linux-2.6 Hardware: AMD K7 1.8GHz, VIA chipset, PATA... - some time old Except the bug message the machine runs normally.. Markus ====>8===== [...] EXT3-fs: mounted filesystem with ordered data mode. input: AT Translated Set 2 keyboard as /class/input/input0 VFS: Mounted root (ext3 filesystem) readonly. Freeing unused kernel memory: 192k freed Write protecting the kernel read-only data: 275k ========================= [ BUG: held lock freed! ] ------------------------- mount/320 is freeing memory c1796c20-c1796c5f, with a lock still held there! (&sbinfo->stat_lock){--..}, at: [] shmem_get_inode+0x28/0x1d0 2 locks held by mount/320: #0: (&type->s_umount_key#8){--..}, at: [] sget+0x15f/0x370 #1: (&sbinfo->stat_lock){--..}, at: [] shmem_get_inode+0x28/0x1d0 stack backtrace: [] show_trace+0x1b/0x20 [] dump_stack+0x26/0x30 [] debug_check_no_locks_freed+0x189/0x190 [] kfree+0x55/0xc0 [] free_fdtable_rcu+0xdc/0x130 [] __rcu_process_callbacks+0x80/0x1b0 [] rcu_process_callbacks+0x12/0x30 [] tasklet_action+0x4e/0x90 [] __do_softirq+0x58/0xe0 [] do_softirq+0x64/0xf0 ======================= [] irq_exit+0x36/0x40 [] do_IRQ+0xaf/0x110 [] common_interrupt+0x25/0x2c [] _spin_lock+0x3b/0x50 [] shmem_get_inode+0x28/0x1d0 [] shmem_fill_super+0x150/0x1a0 [] get_sb_nodev+0x5a/0xb0 [] shmem_get_sb+0x2e/0x30 [] vfs_kern_mount+0x4d/0x90 [] do_kern_mount+0x3f/0x60 [] do_mount+0x29d/0x660 [] sys_mount+0x8c/0xd0 [] syscall_call+0x7/0xb [...] ====>8===== -- A computer without COBOL and Fortran is like a piece of chocolate cake without ketchup and mustard.