From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from daytona.panasas.com ([67.152.220.89]:61773 "EHLO daytona.int.panasas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754390Ab0FOUNj (ORCPT ); Tue, 15 Jun 2010 16:13:39 -0400 Message-ID: <4C17DEF5.7000609@panasas.com> Date: Tue, 15 Jun 2010 16:13:41 -0400 From: Benny Halevy To: Andy Adamson CC: NFS list Subject: pnfs-2.6.35-rc3 writeback hang w/ cthon test5 Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-nfs-owner@vger.kernel.org List-ID: MIME-Version: 1.0 client and server running pnfs-all-2.6.35-rc3-2010-06-15 client runs on UML server runs on redhat-3 and with files pnfsd_local_exp (Fedora 13 KVM) ./test5: read and write Got error -10052 from the server on DESTROY_SESSION. Session has been destroyed regardless... Got error -10052 from the server on DESTROY_SESSION. Session has been destroyed regardless... Got error -10052 from the server on DESTROY_SESSION. Session has been destroyed regardless... INFO: task flush-0:18:2310 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. flush-0:18 D 0000003d8c2dc84f 6928 2310 2 0x00000000 74b4c000 78f9e980 74b4dc60 601a89b0 74b4dcd0 74b4dcd0 74b4c000 00000000 74b4dcc0 74b4dcd0 62499130 00000002 74b4dc70 60092704 74b4dcb0 601a8ea3 Call Trace: 74b4dbc8: [<6002bbba>] dequeue_task+0x3b/0x4d 74b4dbe8: [<600137df>] _switch_to+0x5e/0xae 74b4dc18: [<601a89b0>] schedule+0x1d9/0x21f 74b4dc68: [<60092704>] inode_wait+0x9/0xd 74b4dc78: [<601a8ea3>] __wait_on_bit+0x47/0x78 74b4dc80: [<600926fb>] inode_wait+0x0/0xd 74b4dcb8: [<6009b159>] inode_wait_for_writeback+0x8f/0xae 74b4dce0: [<60043474>] wake_bit_function+0x0/0x2a 74b4dd28: [<6009c225>] wb_writeback+0x183/0x1a4 74b4ddd8: [<6009c429>] wb_do_writeback+0x13a/0x150 74b4dde0: [<60039686>] process_timeout+0x0/0xb 74b4de58: [<6009c47e>] bdi_writeback_task+0x3f/0xf7 74b4de68: [<600690be>] bdi_task_init+0x71/0x7d 74b4de90: [<6006996e>] bdi_start_fn+0x0/0xc7 74b4dea8: [<600699da>] bdi_start_fn+0x6c/0xc7 74b4dec8: [<6006996e>] bdi_start_fn+0x0/0xc7 74b4ded8: [<60043086>] kthread+0x91/0x99 74b4df48: [<600213a1>] run_kernel_thread+0x41/0x4a 74b4df58: [<60042ff5>] kthread+0x0/0x99 74b4df98: [<60021388>] run_kernel_thread+0x28/0x4a 74b4dfc8: [<60013757>] new_thread_handler+0x72/0x9c