Return-Path: linux-nfs-owner@vger.kernel.org Received: from smtp10.mail.sp.isp-net.nl ([217.149.192.65]:41009 "EHLO smtp10.mail.sp.isp-net.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751251Ab2E1WaD (ORCPT ); Mon, 28 May 2012 18:30:03 -0400 Received: from [10.10.0.12] by smtp10.mail.sp.isp-net.nl via 152-124-254-92.ftth.xms.internl.net [92.254.124.152] with ESMTP for id q4SMJYG8011176 (8.13.2/2.04); Tue, 29 May 2012 00:19:34 +0200 (MEST) Message-ID: <4FC3F9F6.7010107@xmsnet.nl> Date: Tue, 29 May 2012 00:19:34 +0200 From: Hans de Bruin MIME-Version: 1.0 To: Linux NFS mailing list Subject: nfsroot client will not start firefox or thunderbird from 3.4.0 nfsserver Content-Type: text/plain; charset=ISO-8859-1; format=flowed Sender: linux-nfs-owner@vger.kernel.org List-ID: I just upgraded my home server from kernel 3.3.5 to 3.4.0 and ran into some trouble. My laptop, a nfsroot client, will not run firefox and thunderbird anymore. When I start these programs from an xterm, the cursor goes to the next line and waits indefinitely. I do not know if there is any order is lsof's output. A lsof | grep firefox or thunderbird shows ......./.parentlock as the last line. It does not matter whether the client is running a 3.4.0 or a 3.3.0 kernel, or if the server is running on top of xen or not. There is some noise in the servers dmesg: [ 241.256684] INFO: task kworker/u:2:801 blocked for more than 120 seconds. [ 241.256691] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 241.256698] kworker/u:2 D 000000000000000c 0 801 2 0x00000000 [ 241.256710] ffff8801390e5cf0 0000000000000046 0000000000012d00 0000000000012d00 [ 241.256721] 0000000000012d00 ffff880139f8bd50 0000000000012d00 ffff8801390e5fd8 [ 241.256732] ffff8801390e5fd8 0000000000012d00 ffff880139ce4420 ffff880139f8bd50 [ 241.256743] Call Trace: [ 241.256759] [] schedule+0x64/0x66 [ 241.256769] [] cld_pipe_upcall+0x95/0xd1 [ 241.256780] [] ? nfsd4_exchange_id+0x23e/0x23e [ 241.256789] [] nfsd4_cld_grace_done+0x50/0x8a [ 241.256798] [] nfsd4_record_grace_done+0x18/0x1a [ 241.256807] [] laundromat_main+0x4a/0x213 [ 241.256818] [] ? need_resched+0x1e/0x28 [ 241.256826] [] ? __schedule+0x49d/0x4b5 [ 241.256835] [] ? nfsd4_exchange_id+0x23e/0x23e [ 241.256844] [] process_one_work+0x190/0x28d [ 241.256854] [] worker_thread+0x105/0x189 [ 241.256862] [] ? _raw_spin_unlock_irqrestore+0x1a/0x1d [ 241.256872] [] ? manage_workers.clone.17+0x173/0x173 [ 241.256881] [] kthread+0x8a/0x92 [ 241.256891] [] kernel_thread_helper+0x4/0x10 [ 241.256900] [] ? kthread_freezable_should_stop+0x47/0x47 [ 241.256909] [] ? gs_change+0x13/0x13 or xenified: [ 240.563448] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 240.563458] kworker/u:2 D ffff88007fc12d00 0 808 2 0x00000000 [ 240.563479] ffff88007532fcf0 0000000000000246 0000000000012d00 0000000000012d00 [ 240.563504] 0000000000012d00 ffff880075f7caf0 0000000000012d00 ffff88007532ffd8 [ 240.563530] ffff88007532ffd8 0000000000012d00 ffffffff81813020 ffff880075f7caf0 [ 240.563555] Call Trace: [ 240.563578] [] schedule+0x64/0x66 [ 240.563594] [] cld_pipe_upcall+0x95/0xd1 [ 240.563611] [] ? nfsd4_exchange_id+0x23e/0x23e [ 240.563625] [] nfsd4_cld_grace_done+0x50/0x8a [ 240.563640] [] nfsd4_record_grace_done+0x18/0x1a [ 240.563654] [] laundromat_main+0x4a/0x213 [ 240.563670] [] ? xen_spin_unlock+0x12/0x30 [ 240.563685] [] ? nfsd4_exchange_id+0x23e/0x23e [ 240.563700] [] process_one_work+0x190/0x28d [ 240.563714] [] ? xen_spin_lock+0xb/0xd [ 240.563729] [] worker_thread+0x105/0x189 [ 240.563743] [] ? _raw_spin_unlock_irqrestore+0x1a/0x1d [ 240.563758] [] ? manage_workers.clone.17+0x173/0x173 [ 240.563772] [] kthread+0x8a/0x92 [ 240.563787] [] kernel_thread_helper+0x4/0x10 [ 240.563802] [] ? retint_restore_args+0x5/0x6 [ 240.563816] [] ? gs_change+0x13/0x13 -- Hans