Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754083AbXKIUKm (ORCPT ); Fri, 9 Nov 2007 15:10:42 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750807AbXKIUKf (ORCPT ); Fri, 9 Nov 2007 15:10:35 -0500 Received: from filer.fsl.cs.sunysb.edu ([130.245.126.2]:54069 "EHLO filer.fsl.cs.sunysb.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750761AbXKIUKe (ORCPT ); Fri, 9 Nov 2007 15:10:34 -0500 Date: Fri, 9 Nov 2007 15:10:32 -0500 Message-Id: <200711092010.lA9KAWMh012863@agora.fsl.cs.sunysb.edu> From: Erez Zadok To: linux-kernel@vger.kernel.org Subject: BUG: can't reboot -nf -mm 2007-11-06-02-32++ In-reply-to: Your message of "Fri, 09 Nov 2007 13:23:09 EST." <200711091823.lA9IN9Bp000989@agora.fsl.cs.sunysb.edu> X-MailKey: Erez_Zadok Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3272 Lines: 82 In message <200711091823.lA9IN9Bp000989@agora.fsl.cs.sunysb.edu>, Erez Zadok writes: > Setup: FC6 system with MM snapshot broken-out-2007-11-06-02-32 and these two > patches added: > > r-o-bind-mounts-track-number-of-mount-writer-fix-buggy-loop.patch > r-o-bind-mounts-track-number-of-mount-writer-fix-buggy-loop-checkpatch-fixes.patch Same setup above. Here's a simple bug. Just run # /sbin/reboot -n -f Segmentation fault # dmesg [...] BUG: unable to handle kernel paging request at virtual address 42da9ff4 printing eip: c1c81e24 *pde = 030fb067 *pte = 3dfdc065 Oops: 0003 [#1] last sysfs file: /sys/kernel/uevent_seqnum Modules linked in: nfsd auth_rpcgss exportfs nfs lockd nfs_acl sunrpc Pid: 1954, comm: reboot Not tainted (2.6.24-rc1-mm1-mm #11) EIP: 0060:[] EFLAGS: 00010286 CPU: 0 EIP is at 0xc1c81e24 EAX: c1c152ac EBX: c0446d40 ECX: c1c81e24 EDX: c1c152ac ESI: 01234567 EDI: 42da9ff4 EBP: c310be94 ESP: c310be8c DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068 Process reboot (pid: 1954, ti=c310a000 task=c309a000 task.ti=c310a000) Stack: c02fad37 00000000 c310bea0 c0219d3f 28121969 c310bfb0 c0219e68 c17fe240 c310bee4 c0230cd7 c310bf14 c30ceb58 c20141fc c3043de8 c30fb4d4 c3043de8 c17fe240 00000000 c17fe240 c310bee4 c022f023 c17fe240 c310bf34 c0239003 Call Trace: [] show_trace_log_lvl+0x12/0x25 [] show_stack_log_lvl+0x8a/0x9c [] show_registers+0x8b/0x153 [] die+0xe4/0x1a2 [] do_page_fault+0x3db/0x4b1 [] error_code+0x6a/0x70 [] kernel_restart+0x26/0x55 [] sys_reboot+0xee/0x101 [] sysenter_past_esp+0x5f/0x91 ======================= INFO: lockdep is turned off. Code: 00 00 00 00 00 00 00 00 1c c8 c1 6f 76 20 20 39 20 31 34 3a 35 33 3a 31 39 20 6b 65 72 6e 65 6c 3a 20 54 43 50 20 65 73 74 61 62 <6c> 69 73 68 65 64 20 68 61 73 68 20 74 61 62 6c 65 20 65 6e 74 EIP: [] 0xc1c81e24 SS:ESP 0068:c310be8c WARNING: at lib/kref.c:33 kref_get() [] show_trace_log_lvl+0x12/0x25 [] show_trace+0xd/0x10 [] dump_stack+0x15/0x17 [] kref_get+0x26/0x30 [] kobject_get+0x12/0x17 [] kobject_add+0x97/0x162 [] uids_user_create+0x41/0x5d [] alloc_uid+0xc9/0x171 [] set_user+0x1f/0x93 [] sys_setreuid+0xa1/0x139 [] sysenter_past_esp+0x5f/0x91 ======================= BUG: atomic counter underflow at: [] show_trace_log_lvl+0x12/0x25 [] show_trace+0xd/0x10 [] dump_stack+0x15/0x17 [] kref_put+0x50/0x71 [] kobject_put+0x14/0x16 [] kobject_cleanup+0x37/0x3c [] kobject_release+0xb/0xd [] kref_put+0x60/0x71 [] kobject_put+0x14/0x16 [] remove_user_sysfs_dir+0x77/0xad [] run_workqueue+0xba/0x182 [] worker_thread+0x79/0x84 [] kthread+0x39/0x61 [] kernel_thread_helper+0x7/0x10 ======================= Erez. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/