From: Nikola Pajkovsky Subject: Re: xfstests generic/130 hang with non-4k block size ext4 on 4.7-rc1 kernel Date: Thu, 09 Jun 2016 09:23:29 +0200 Message-ID: <87oa7a6d1q.fsf@gooddata.com> References: <20160531140922.GM5140@eguan.usersys.redhat.com> <20160531154017.GC5357@thunk.org> <20160601063822.GH10350@eguan.usersys.redhat.com> <20160601165800.GI10350@eguan.usersys.redhat.com> <20160602085840.GH19636@quack2.suse.cz> <20160602121750.GC32574@quack2.suse.cz> <20160603101612.GJ10350@eguan.usersys.redhat.com> <20160603115844.GB2470@quack2.suse.cz> <20160608125631.GA19589@quack2.suse.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: linux-ext4@vger.kernel.org, Jan Kara To: Holger =?utf-8?Q?Hoffst=C3=A4tte?= Return-path: Received: from mail-wm0-f42.google.com ([74.125.82.42]:35101 "EHLO mail-wm0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751433AbcFIHXd convert rfc822-to-8bit (ORCPT ); Thu, 9 Jun 2016 03:23:33 -0400 Received: by mail-wm0-f42.google.com with SMTP id v199so93844838wmv.0 for ; Thu, 09 Jun 2016 00:23:32 -0700 (PDT) In-Reply-To: ("Holger =?utf-8?Q?Hoffst=C3=A4tte=22's?= message of "Wed, 8 Jun 2016 14:23:49 +0000 (UTC)") Sender: linux-ext4-owner@vger.kernel.org List-ID: Holger Hoffst=C3=A4tte writes: > On Wed, 08 Jun 2016 14:56:31 +0200, Jan Kara wrote: > (snip) >> Attached patch fixes the issue for me. I'll submit it once a full xf= stests >> run finishes for it (which may take a while as our server room is cu= rrently >> moving to a different place). >>=20 >> Honza >> --=20 >> Jan Kara >> SUSE Labs, CR >> From 3a120841a5d9a6c42bf196389467e9e663cf1cf8 Mon Sep 17 00:00:00 20= 01 >> From: Jan Kara >> Date: Wed, 8 Jun 2016 10:01:45 +0200 >> Subject: [PATCH] ext4: Fix deadlock during page writeback >>=20 >> Commit 06bd3c36a733 (ext4: fix data exposure after a crash) uncovere= d a >> deadlock in ext4_writepages() which was previously much harder to hi= t. >> After this commit xfstest generic/130 reproduces the deadlock on sma= ll >> filesystems. > > Since you marked this for -stable, just a heads-up that the previous = patch > for the data exposure was rejected from -stable (see [1]) because it > has the mismatching "!IS_NOQUOTA(inode) &&" line, which didn't exist > until 4.6. I removed it locally but Greg probably wants an official p= atch. > > So both this and the previous patch need to be submitted. > > [1] http://permalink.gmane.org/gmane.linux.kernel.stable/18074{4,5,6} I'm just wondering if the Jan's patch is not related to blocked processes in following trace. It very hard to hit it and I don't have any reproducer. kernel: INFO: task jbd2/vdc-8:4710 blocked for more than 120 seconds. s= everity=3Derr kernel: Not tainted 3.18.21-1.el6.gdc.x86_64 #1 severity=3Derr kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables thi= s message. severity=3Derr kernel: jbd2/vdc-8 D 0000000000000002 0 4710 2 0x0000008= 0 severity=3Dinfo kernel: ffff88273a373b38 0000000000000046 ffff88273a373ae8 ffff88273a37= 0010 severity=3Dwarning kernel: 0000000000012c40 0000000000012c40 ffff88273c76c7e0 ffff88273e32= 2b20 severity=3Dwarning kernel: ffff88273a373b38 ffff88277f092c40 ffff88273c76c7e0 ffffffff8161= 4e10 severity=3Dwarning kernel: Call Trace: severity=3Dwarning kernel: [] ? bit_wait_timeout+0x70/0x70 severity=3Dwa= rning kernel: [] schedule+0x29/0x70 severity=3Dwarning kernel: [] io_schedule+0x8c/0xd0 severity=3Dwarning kernel: [] bit_wait_io+0x2c/0x50 severity=3Dwarning kernel: [] __wait_on_bit+0x65/0x90 severity=3Dwarning kernel: [] ? bit_wait_timeout+0x70/0x70 severity=3Dwa= rning kernel: [] out_of_line_wait_on_bit+0x78/0x90 severity= =3Dwarning kernel: [] ? wake_atomic_t_function+0x40/0x40 severit= y=3Dwarning kernel: [] __wait_on_buffer+0x2e/0x30 severity=3Dwarn= ing kernel: [] jbd2_journal_commit_transaction+0x861/0x16= e0 [jbd2] severity=3Dwarning kernel: [] ? woken_wake_function+0x20/0x20 severity=3D= warning kernel: [] kjournald2+0x127/0x340 [jbd2] severity=3Dw= arning kernel: [] ? woken_wake_function+0x20/0x20 severity=3D= warning kernel: [] ? jbd2_journal_clear_features+0x90/0x90 [j= bd2] severity=3Dwarning kernel: [] kthread+0xce/0xf0 severity=3Dwarning kernel: [] ? kthread_freezable_should_stop+0x70/0x70 = severity=3Dwarning kernel: [] ret_from_fork+0x58/0x90 severity=3Dwarning kernel: [] ? kthread_freezable_should_stop+0x70/0x70 = severity=3Dwarning kernel: INFO: task postmaster:25406 blocked for more than 120 seconds. = severity=3Derr kernel: Not tainted 3.18.21-1.el6.gdc.x86_64 #1 severity=3Derr kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables thi= s message. severity=3Derr kernel: postmaster D 000000000000000f 0 25406 25395 0x0000008= 0 severity=3Dinfo kernel: ffff882485e5f9a8 0000000000000086 ffff882485e5f958 ffff882485e5= c010 severity=3Dwarning kernel: 0000000000012c40 0000000000012c40 ffff882657c9d640 ffff88273e3b= 8000 severity=3Dwarning kernel: ffff882485e5f9a8 ffff88277f3d2c40 ffff882657c9d640 ffffffff8161= 4e10 severity=3Dwarning kernel: Call Trace: severity=3Dwarning kernel: [] ? bit_wait_timeout+0x70/0x70 severity=3Dwa= rning kernel: [] schedule+0x29/0x70 severity=3Dwarning kernel: [] io_schedule+0x8c/0xd0 severity=3Dwarning kernel: [] bit_wait_io+0x2c/0x50 severity=3Dwarning kernel: [] __wait_on_bit+0x65/0x90 severity=3Dwarning kernel: [] ? bit_wait_timeout+0x70/0x70 severity=3Dwa= rning kernel: [] out_of_line_wait_on_bit+0x78/0x90 severity= =3Dwarning kernel: [] ? wake_atomic_t_function+0x40/0x40 severit= y=3Dwarning kernel: [] do_get_write_access+0x1fd/0x4e0 [jbd2] sev= erity=3Dwarning kernel: [] ? __getblk_gfp+0x3a/0x80 severity=3Dwarnin= g kernel: [] jbd2_journal_get_write_access+0x31/0x50 [j= bd2] severity=3Dwarning kernel: [] __ext4_journal_get_write_access+0x43/0x90 = [ext4] severity=3Dwarning kernel: [] ext4_reserve_inode_write+0x78/0xa0 [ext4] = severity=3Dwarning kernel: [] ext4_mark_inode_dirty+0x52/0x240 [ext4] se= verity=3Dwarning kernel: [] ext4_dirty_inode+0x4a/0x70 [ext4] severity= =3Dwarning kernel: [] __mark_inode_dirty+0x3a/0x290 severity=3Dw= arning kernel: [] update_time+0x81/0xc0 severity=3Dwarning kernel: [] file_update_time+0x98/0xe0 severity=3Dwarn= ing kernel: [] __generic_file_write_iter+0x162/0x390 seve= rity=3Dwarning kernel: [] ext4_file_write_iter+0x119/0x430 [ext4] se= verity=3Dwarning kernel: [] new_sync_write+0x92/0xd0 severity=3Dwarnin= g kernel: [] vfs_write+0xce/0x180 severity=3Dwarning kernel: [] SyS_write+0x56/0xd0 severity=3Dwarning kernel: [] system_call_fastpath+0x12/0x17 severity=3D= warning kernel: INFO: task kworker/u36:2:20256 blocked for more than 120 second= s. severity=3Derr kernel: Not tainted 3.18.21-1.el6.gdc.x86_64 #1 severity=3Derr kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables thi= s message. severity=3Derr kernel: kworker/u36:2 D 0000000000000002 0 20256 2 0x0000008= 0 severity=3Dinfo kernel: Workqueue: writeback bdi_writeback_workfn (flush-253:32) severi= ty=3Dinfo kernel: ffff881b4ef83448 0000000000000046 ffff881b4ef833f8 ffff881b4ef8= 0010 severity=3Dwarning kernel: 0000000000012c40 0000000000012c40 ffff88273a238e60 ffff88273e32= 2b20 severity=3Dwarning kernel: ffff881b4ef83418 ffff88277f092c40 ffff88273a238e60 ffffffff8161= 4e10 severity=3Dwarning kernel: Call Trace: severity=3Dwarning kernel: [] ? bit_wait_timeout+0x70/0x70 severity=3Dwa= rning kernel: [] schedule+0x29/0x70 severity=3Dwarning kernel: [] io_schedule+0x8c/0xd0 severity=3Dwarning kernel: [] bit_wait_io+0x2c/0x50 severity=3Dwarning kernel: [] __wait_on_bit+0x65/0x90 severity=3Dwarning kernel: [] ? mb_mark_used+0x297/0x350 [ext4] severity= =3Dwarning kernel: [] ? bit_wait_timeout+0x70/0x70 severity=3Dwa= rning kernel: [] out_of_line_wait_on_bit+0x78/0x90 severity= =3Dwarning kernel: [] ? wake_atomic_t_function+0x40/0x40 severit= y=3Dwarning kernel: [] do_get_write_access+0x1fd/0x4e0 [jbd2] sev= erity=3Dwarning kernel: [] ? __getblk_gfp+0x3a/0x80 severity=3Dwarnin= g kernel: [] jbd2_journal_get_write_access+0x31/0x50 [j= bd2] severity=3Dwarning kernel: [] __ext4_journal_get_write_access+0x43/0x90 = [ext4] severity=3Dwarning kernel: [] ? ext4_read_block_bitmap+0x3a/0x60 [ext4] = severity=3Dwarning kernel: [] ext4_mb_mark_diskspace_used+0x79/0x320 [ex= t4] severity=3Dwarning kernel: [] ext4_mb_new_blocks+0x331/0x510 [ext4] seve= rity=3Dwarning kernel: [] ext4_ext_map_blocks+0x877/0xae0 [ext4] sev= erity=3Dwarning kernel: [] ? release_pages+0x1e1/0x250 severity=3Dwar= ning kernel: [] ext4_map_blocks+0x176/0x4b0 [ext4] severit= y=3Dwarning kernel: [] ? mpage_prepare_extent_to_map+0x304/0x350 = [ext4] severity=3Dwarning kernel: [] mpage_map_one_extent+0x71/0x1a0 [ext4] sev= erity=3Dwarning kernel: [] mpage_map_and_submit_extent+0x4b/0x220 [ex= t4] severity=3Dwarning kernel: [] ? __ext4_journal_start_sb+0x74/0x100 [ext4= ] severity=3Dwarning kernel: [] ext4_writepages+0x4cb/0x630 [ext4] severit= y=3Dwarning kernel: [] ? blk_mq_flush_plug_list+0x135/0x150 sever= ity=3Dwarning kernel: [] ? set_next_entity+0x93/0xa0 severity=3Dwar= ning kernel: [] do_writepages+0x20/0x40 severity=3Dwarning kernel: [] __writeback_single_inode+0x40/0x220 severi= ty=3Dwarning kernel: [] ? wake_up_bit+0x2f/0x40 severity=3Dwarning kernel: [] writeback_sb_inodes+0x2b4/0x3c0 severity=3D= warning kernel: [] ? put_super+0x31/0x40 severity=3Dwarning kernel: [] __writeback_inodes_wb+0x9e/0xd0 severity=3D= warning kernel: [] wb_writeback+0x243/0x2d0 severity=3Dwarnin= g kernel: [] wb_do_writeback+0xfb/0x1e0 severity=3Dwarn= ing kernel: [] bdi_writeback_workfn+0x70/0x210 severity=3D= warning kernel: [] process_one_work+0x143/0x4b0 severity=3Dwa= rning kernel: [] worker_thread+0x123/0x520 severity=3Dwarni= ng kernel: [] ? __schedule+0x375/0x750 severity=3Dwarnin= g kernel: [] ? maybe_create_worker+0x130/0x130 severity= =3Dwarning kernel: [] kthread+0xce/0xf0 severity=3Dwarning kernel: [] ? kthread_freezable_should_stop+0x70/0x70 = severity=3Dwarning kernel: [] ret_from_fork+0x58/0x90 severity=3Dwarning kernel: [] ? kthread_freezable_should_stop+0x70/0x70 = severity=3Dwarning kernel: INFO: task postmaster:14855 blocked for more than 120 seconds. = severity=3Derr kernel: Not tainted 3.18.21-1.el6.gdc.x86_64 #1 severity=3Derr kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables thi= s message. severity=3Derr kernel: postmaster D 0000000000000009 0 14855 25395 0x0000008= 0 severity=3Dinfo kernel: ffff8822bf3877b8 0000000000000082 ffff8822bf387768 ffff8822bf38= 4010 severity=3Dwarning kernel: 0000000000012c40 0000000000012c40 ffff8825d71f5640 ffff88273e39= 1cc0 severity=3Dwarning kernel: ffff8822bf387788 ffff88277f252c40 ffff8825d71f5640 ffffffff8161= 4e10 severity=3Dwarning kernel: Call Trace: severity=3Dwarning kernel: [] ? bit_wait_timeout+0x70/0x70 severity=3Dwa= rning kernel: [] schedule+0x29/0x70 severity=3Dwarning kernel: [] io_schedule+0x8c/0xd0 severity=3Dwarning kernel: [] bit_wait_io+0x2c/0x50 severity=3Dwarning kernel: [] __wait_on_bit+0x65/0x90 severity=3Dwarning kernel: [] ? bh_lru_install+0x170/0x1a0 severity=3Dwa= rning kernel: [] ? bit_wait_timeout+0x70/0x70 severity=3Dwa= rning kernel: [] out_of_line_wait_on_bit+0x78/0x90 severity= =3Dwarning kernel: [] ? wake_atomic_t_function+0x40/0x40 severit= y=3Dwarning kernel: [] do_get_write_access+0x1fd/0x4e0 [jbd2] sev= erity=3Dwarning kernel: [] jbd2_journal_get_write_access+0x31/0x50 [j= bd2] severity=3Dwarning kernel: [] __ext4_journal_get_write_access+0x43/0x90 = [ext4] severity=3Dwarning kernel: [] ? ext4_read_block_bitmap+0x3a/0x60 [ext4] = severity=3Dwarning kernel: [] ext4_mb_mark_diskspace_used+0xeb/0x320 [ex= t4] severity=3Dwarning kernel: [] ext4_mb_new_blocks+0x331/0x510 [ext4] seve= rity=3Dwarning kernel: [] ext4_ext_map_blocks+0x877/0xae0 [ext4] sev= erity=3Dwarning kernel: [] ? release_pages+0x1e1/0x250 severity=3Dwar= ning kernel: [] ext4_map_blocks+0x176/0x4b0 [ext4] severit= y=3Dwarning kernel: [] ? mpage_prepare_extent_to_map+0x304/0x350 = [ext4] severity=3Dwarning kernel: [] mpage_map_one_extent+0x71/0x1a0 [ext4] sev= erity=3Dwarning kernel: [] mpage_map_and_submit_extent+0x4b/0x220 [ex= t4] severity=3Dwarning kernel: [] ext4_writepages+0x4cb/0x630 [ext4] severit= y=3Dwarning kernel: [] ? handle_mm_fault+0xb2/0x1a0 severity=3Dwa= rning kernel: [] do_writepages+0x20/0x40 severity=3Dwarning kernel: [] __filemap_fdatawrite_range+0x59/0x60 sever= ity=3Dwarning kernel: [] filemap_write_and_wait_range+0xaa/0x100 se= verity=3Dwarning kernel: [] ext4_sync_file+0xf3/0x260 [ext4] severity=3D= warning kernel: [] vfs_fsync_range+0x21/0x30 severity=3Dwarni= ng kernel: [] vfs_fsync+0x1c/0x20 severity=3Dwarning kernel: [] do_fsync+0x3d/0x70 severity=3Dwarning kernel: [] SyS_fsync+0x10/0x20 severity=3Dwarning kernel: [] system_call_fastpath+0x12/0x17 severity=3D= warning kernel: INFO: task postmaster:14856 blocked for more than 120 seconds. = severity=3Derr kernel: Not tainted 3.18.21-1.el6.gdc.x86_64 #1 severity=3Derr kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables thi= s message. severity=3Derr kernel: postmaster D 0000000000000006 0 14856 25395 0x0000008= 0 severity=3Dinfo kernel: ffff88262affb8a8 0000000000000086 ffff88262affb858 ffff88262aff= 8010 severity=3Dwarning kernel: 0000000000012c40 0000000000012c40 ffff88266aab1cc0 ffff88273e32= 64a0 severity=3Dwarning kernel: ffff88225c97d6a0 ffff88277f192c40 ffff88266aab1cc0 ffffffff8161= 4e10 severity=3Dwarning kernel: Call Trace: severity=3Dwarning kernel: [] ? bit_wait_timeout+0x70/0x70 severity=3Dwa= rning kernel: [] schedule+0x29/0x70 severity=3Dwarning kernel: [] io_schedule+0x8c/0xd0 severity=3Dwarning kernel: [] bit_wait_io+0x2c/0x50 severity=3Dwarning kernel: [] __wait_on_bit+0x65/0x90 severity=3Dwarning kernel: [] ? start_this_handle+0x28e/0x520 [jbd2] sev= erity=3Dwarning kernel: [] ? bit_wait_timeout+0x70/0x70 severity=3Dwa= rning kernel: [] out_of_line_wait_on_bit+0x78/0x90 severity= =3Dwarning kernel: [] ? wake_atomic_t_function+0x40/0x40 severit= y=3Dwarning kernel: [] do_get_write_access+0x1fd/0x4e0 [jbd2] sev= erity=3Dwarning kernel: [] jbd2_journal_get_write_access+0x31/0x50 [j= bd2] severity=3Dwarning kernel: [] __ext4_journal_get_write_access+0x43/0x90 = [ext4] severity=3Dwarning kernel: [] __ext4_new_inode+0x3a4/0x1110 [ext4] sever= ity=3Dwarning kernel: [] ? __dquot_initialize+0x30/0x1e0 severity=3D= warning kernel: [] ext4_create+0xab/0x170 [ext4] severity=3Dw= arning kernel: [] vfs_create+0xd8/0x100 severity=3Dwarning kernel: [] lookup_open+0x13e/0x1d0 severity=3Dwarning kernel: [] do_last+0x416/0x820 severity=3Dwarning kernel: [] path_openat+0xc4/0x480 severity=3Dwarning kernel: [] ? putname+0x29/0x40 severity=3Dwarning kernel: [] do_filp_open+0x4a/0xa0 severity=3Dwarning kernel: [] ? __alloc_fd+0xac/0x150 severity=3Dwarning kernel: [] do_sys_open+0x11a/0x230 severity=3Dwarning kernel: [] ? syscall_trace_enter_phase1+0x133/0x150 s= everity=3Dwarning kernel: [] ? __audit_syscall_exit+0x246/0x2f0 severit= y=3Dwarning kernel: [] SyS_open+0x1e/0x20 severity=3Dwarning kernel: [] system_call_fastpath+0x12/0x17 severity=3D= warning kernel: INFO: task postmaster:14857 blocked for more than 120 seconds. = severity=3Derr kernel: Not tainted 3.18.21-1.el6.gdc.x86_64 #1 severity=3Derr kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables thi= s message. severity=3Derr kernel: postmaster D 0000000000000010 0 14857 25395 0x0000008= 0 severity=3Dinfo kernel: ffff880748203df8 0000000000000082 ffff8826a94e67c8 ffff88074820= 0010 severity=3Dwarning kernel: 0000000000012c40 0000000000012c40 ffff88266aab5640 ffff88273e3b= 8e60 severity=3Dwarning kernel: ffff880748203e08 00000000023bc691 ffff882737c2e800 ffff88074820= 3e38 severity=3Dwarning kernel: Call Trace: severity=3Dwarning kernel: [] schedule+0x29/0x70 severity=3Dwarning kernel: [] jbd2_log_wait_commit+0xe5/0x170 [jbd2] sev= erity=3Dwarning kernel: [] ? woken_wake_function+0x20/0x20 severity=3D= warning kernel: [] jbd2_complete_transaction+0x57/0x90 [jbd2]= severity=3Dwarning kernel: [] ext4_sync_file+0x1fd/0x260 [ext4] severity= =3Dwarning kernel: [] vfs_fsync_range+0x21/0x30 severity=3Dwarni= ng kernel: [] vfs_fsync+0x1c/0x20 severity=3Dwarning kernel: [] do_fsync+0x3d/0x70 severity=3Dwarning kernel: [] SyS_fsync+0x10/0x20 severity=3Dwarning kernel: [] system_call_fastpath+0x12/0x17 severity=3D= warning kernel: INFO: task postmaster:14859 blocked for more than 120 seconds. = severity=3Derr kernel: Not tainted 3.18.21-1.el6.gdc.x86_64 #1 severity=3Derr kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables thi= s message. severity=3Derr kernel: postmaster D 0000000000000001 0 14859 25395 0x0000008= 0 severity=3Dinfo kernel: ffff8820d2017c38 0000000000000082 ffff882700000000 ffff8820d201= 4010 severity=3Dwarning kernel: 0000000000012c40 0000000000012c40 ffff882657c99cc0 ffff88273e32= 1cc0 severity=3Dwarning kernel: ffff882657c99cc0 ffff8826feadc068 ffff882657c99cc0 ffff8826fead= c06c severity=3Dwarning kernel: Call Trace: severity=3Dwarning kernel: [] schedule+0x29/0x70 severity=3Dwarning kernel: [] schedule_preempt_disabled+0xe/0x10 severit= y=3Dwarning kernel: [] __mutex_lock_slowpath+0x95/0x100 severity=3D= warning kernel: [] mutex_lock+0x23/0x40 severity=3Dwarning kernel: [] do_last+0x3fc/0x820 severity=3Dwarning kernel: [] path_openat+0xc4/0x480 severity=3Dwarning kernel: [] ? mutex_lock+0x16/0x40 severity=3Dwarning kernel: [] do_filp_open+0x4a/0xa0 severity=3Dwarning kernel: [] ? __alloc_fd+0xac/0x150 severity=3Dwarning kernel: [] do_sys_open+0x11a/0x230 severity=3Dwarning kernel: [] ? syscall_trace_enter_phase1+0x133/0x150 s= everity=3Dwarning kernel: [] ? __audit_syscall_exit+0x246/0x2f0 severit= y=3Dwarning kernel: [] SyS_open+0x1e/0x20 severity=3Dwarning kernel: [] system_call_fastpath+0x12/0x17 severity=3D= warning kernel: INFO: task postmaster:14860 blocked for more than 120 seconds. = severity=3Derr kernel: Not tainted 3.18.21-1.el6.gdc.x86_64 #1 severity=3Derr kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables thi= s message. severity=3Derr kernel: postmaster D 000000000000000e 0 14860 25395 0x0000008= 0 severity=3Dinfo kernel: ffff8820d22fbdf8 0000000000000086 ffff8826947ba4d8 ffff8820d22f= 8010 severity=3Dwarning kernel: 0000000000012c40 0000000000012c40 ffff88266a93e4a0 ffff88273e39= 64a0 severity=3Dwarning kernel: ffff8820d22fbe08 00000000023bc691 ffff882737c2e800 ffff8820d22f= be38 severity=3Dwarning kernel: Call Trace: severity=3Dwarning kernel: [] schedule+0x29/0x70 severity=3Dwarning kernel: [] jbd2_log_wait_commit+0xe5/0x170 [jbd2] sev= erity=3Dwarning kernel: [] ? woken_wake_function+0x20/0x20 severity=3D= warning kernel: [] jbd2_complete_transaction+0x57/0x90 [jbd2]= severity=3Dwarning kernel: [] ext4_sync_file+0x1fd/0x260 [ext4] severity= =3Dwarning kernel: [] vfs_fsync_range+0x21/0x30 severity=3Dwarni= ng kernel: [] vfs_fsync+0x1c/0x20 severity=3Dwarning kernel: [] do_fsync+0x3d/0x70 severity=3Dwarning kernel: [] SyS_fsync+0x10/0x20 severity=3Dwarning kernel: [] system_call_fastpath+0x12/0x17 severity=3D= warning kernel: INFO: task postmaster:14861 blocked for more than 120 seconds. = severity=3Derr kernel: Not tainted 3.18.21-1.el6.gdc.x86_64 #1 severity=3Derr kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables thi= s message. severity=3Derr kernel: postmaster D 0000000000000007 0 14861 25395 0x0000008= 0 severity=3Dinfo kernel: ffff88041dfdfc38 0000000000000082 0000000000000000 ffff88041dfd= c010 severity=3Dwarning kernel: 0000000000012c40 0000000000012c40 ffff88266a939cc0 ffff88273e39= 0000 severity=3Dwarning kernel: ffff88281ffd8d80 ffff8826feadc068 ffff88266a939cc0 ffff8826fead= c06c severity=3Dwarning kernel: Call Trace: severity=3Dwarning kernel: [] schedule+0x29/0x70 severity=3Dwarning kernel: [] schedule_preempt_disabled+0xe/0x10 severit= y=3Dwarning kernel: [] __mutex_lock_slowpath+0x95/0x100 severity=3D= warning kernel: [] mutex_lock+0x23/0x40 severity=3Dwarning kernel: [] do_last+0x3fc/0x820 severity=3Dwarning kernel: [] path_openat+0xc4/0x480 severity=3Dwarning kernel: [] do_filp_open+0x4a/0xa0 severity=3Dwarning kernel: [] ? __alloc_fd+0xac/0x150 severity=3Dwarning kernel: [] do_sys_open+0x11a/0x230 severity=3Dwarning kernel: [] ? syscall_trace_enter_phase1+0x133/0x150 s= everity=3Dwarning kernel: [] SyS_open+0x1e/0x20 severity=3Dwarning kernel: [] system_call_fastpath+0x12/0x17 severity=3D= warning kernel: INFO: task postmaster:14868 blocked for more than 120 seconds. = severity=3Derr kernel: Not tainted 3.18.21-1.el6.gdc.x86_64 #1 severity=3Derr kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables thi= s message. severity=3Derr kernel: postmaster D 000000000000000a 0 14868 25395 0x0000008= 0 severity=3Dinfo kernel: ffff8821bd68fdf8 0000000000000086 ffff88269980e7c8 ffff8821bd68= c010 severity=3Dwarning kernel: 0000000000012c40 0000000000012c40 ffff88273dd68e60 ffff88273e39= 2b20 severity=3Dwarning kernel: ffff8821bd68fe08 00000000023bc691 ffff882737c2e800 ffff8821bd68= fe38 severity=3Dwarning kernel: Call Trace: severity=3Dwarning kernel: [] schedule+0x29/0x70 severity=3Dwarning kernel: [] jbd2_log_wait_commit+0xe5/0x170 [jbd2] sev= erity=3Dwarning kernel: [] ? woken_wake_function+0x20/0x20 severity=3D= warning kernel: [] jbd2_complete_transaction+0x57/0x90 [jbd2]= severity=3Dwarning kernel: [] ext4_sync_file+0x1fd/0x260 [ext4] severity= =3Dwarning kernel: [] vfs_fsync_range+0x21/0x30 severity=3Dwarni= ng kernel: [] vfs_fsync+0x1c/0x20 severity=3Dwarning kernel: [] do_fsync+0x3d/0x70 severity=3Dwarning kernel: [] SyS_fsync+0x10/0x20 severity=3Dwarning kernel: [] system_call_fastpath+0x12/0x17 severity=3D= warning kernel: SysRq : Show Blocked State severity=3Dinfo kernel: task PC stack pid father severity=3Di= nfo kernel: jbd2/vdc-8 D 0000000000000002 0 4710 2 0x0000008= 0 severity=3Dinfo kernel: ffff88273a373b38 0000000000000046 ffff88273a373ae8 ffff88273a37= 0010 severity=3Dwarning kernel: 0000000000012c40 0000000000012c40 ffff88273c76c7e0 ffff88273e32= 2b20 severity=3Dwarning kernel: ffff88273a373b38 ffff88277f092c40 ffff88273c76c7e0 ffffffff8161= 4e10 severity=3Dwarning kernel: Call Trace: severity=3Dwarning kernel: [] ? bit_wait_timeout+0x70/0x70 severity=3Dwa= rning kernel: [] schedule+0x29/0x70 severity=3Dwarning kernel: [] io_schedule+0x8c/0xd0 severity=3Dwarning kernel: [] bit_wait_io+0x2c/0x50 severity=3Dwarning kernel: [] __wait_on_bit+0x65/0x90 severity=3Dwarning kernel: [] ? bit_wait_timeout+0x70/0x70 severity=3Dwa= rning kernel: [] out_of_line_wait_on_bit+0x78/0x90 severity= =3Dwarning kernel: [] ? wake_atomic_t_function+0x40/0x40 severit= y=3Dwarning kernel: [] __wait_on_buffer+0x2e/0x30 severity=3Dwarn= ing kernel: [] jbd2_journal_commit_transaction+0x861/0x16= e0 [jbd2] severity=3Dwarning kernel: [] ? woken_wake_function+0x20/0x20 severity=3D= warning kernel: [] kjournald2+0x127/0x340 [jbd2] severity=3Dw= arning kernel: [] ? woken_wake_function+0x20/0x20 severity=3D= warning kernel: [] ? jbd2_journal_clear_features+0x90/0x90 [j= bd2] severity=3Dwarning kernel: [] kthread+0xce/0xf0 severity=3Dwarning kernel: [] ? kthread_freezable_should_stop+0x70/0x70 = severity=3Dwarning kernel: [] ret_from_fork+0x58/0x90 severity=3Dwarning kernel: [] ? kthread_freezable_should_stop+0x70/0x70 = severity=3Dwarning kernel: postmaster D 000000000000000f 0 25406 25395 0x0000008= 0 severity=3Dinfo kernel: ffff882485e5f9a8 0000000000000086 ffff882485e5f958 ffff882485e5= c010 severity=3Dwarning kernel: 0000000000012c40 0000000000012c40 ffff882657c9d640 ffff88273e3b= 8000 severity=3Dwarning kernel: ffff882485e5f9a8 ffff88277f3d2c40 ffff882657c9d640 ffffffff8161= 4e10 severity=3Dwarning kernel: Call Trace: severity=3Dwarning kernel: [] ? bit_wait_timeout+0x70/0x70 severity=3Dwa= rning kernel: [] schedule+0x29/0x70 severity=3Dwarning kernel: [] io_schedule+0x8c/0xd0 severity=3Dwarning kernel: [] bit_wait_io+0x2c/0x50 severity=3Dwarning kernel: [] __wait_on_bit+0x65/0x90 severity=3Dwarning kernel: [] ? bit_wait_timeout+0x70/0x70 severity=3Dwa= rning kernel: [] out_of_line_wait_on_bit+0x78/0x90 severity= =3Dwarning kernel: [] ? wake_atomic_t_function+0x40/0x40 severit= y=3Dwarning kernel: [] do_get_write_access+0x1fd/0x4e0 [jbd2] sev= erity=3Dwarning kernel: [] ? __getblk_gfp+0x3a/0x80 severity=3Dwarnin= g kernel: [] jbd2_journal_get_write_access+0x31/0x50 [j= bd2] severity=3Dwarning kernel: [] __ext4_journal_get_write_access+0x43/0x90 = [ext4] severity=3Dwarning kernel: [] ext4_reserve_inode_write+0x78/0xa0 [ext4] = severity=3Dwarning kernel: [] ext4_mark_inode_dirty+0x52/0x240 [ext4] se= verity=3Dwarning kernel: [] ext4_dirty_inode+0x4a/0x70 [ext4] severity= =3Dwarning kernel: [] __mark_inode_dirty+0x3a/0x290 severity=3Dw= arning kernel: [] update_time+0x81/0xc0 severity=3Dwarning kernel: [] file_update_time+0x98/0xe0 severity=3Dwarn= ing kernel: [] __generic_file_write_iter+0x162/0x390 seve= rity=3Dwarning kernel: [] ext4_file_write_iter+0x119/0x430 [ext4] se= verity=3Dwarning kernel: [] new_sync_write+0x92/0xd0 severity=3Dwarnin= g kernel: [] vfs_write+0xce/0x180 severity=3Dwarning kernel: [] SyS_write+0x56/0xd0 severity=3Dwarning kernel: [] system_call_fastpath+0x12/0x17 severity=3D= warning kernel: postmaster D 000000000000000b 0 26139 25395 0x0000008= 0 severity=3Dinfo kernel: ffff882451267e28 0000000000000082 ffff882737404020 ffff88245126= 4010 severity=3Dwarning kernel: 0000000000012c40 0000000000012c40 ffff882641ea8e60 ffff88273e39= 3980 severity=3Dwarning kernel: 0000000000000003 ffff8826feadc068 ffff882641ea8e60 ffff8826fead= c06c severity=3Dwarning kernel: Call Trace: severity=3Dwarning kernel: [] schedule+0x29/0x70 severity=3Dwarning kernel: [] schedule_preempt_disabled+0xe/0x10 severit= y=3Dwarning kernel: [] __mutex_lock_killable_slowpath+0xb4/0x140 = severity=3Dwarning kernel: [] mutex_lock_killable+0x42/0x50 severity=3Dw= arning kernel: [] iterate_dir+0x77/0x140 severity=3Dwarning kernel: [] ? __audit_syscall_entry+0xac/0x110 severit= y=3Dwarning kernel: [] SyS_getdents+0xb1/0x100 severity=3Dwarning kernel: [] ? SyS_old_readdir+0x90/0x90 severity=3Dwar= ning kernel: [] system_call_fastpath+0x12/0x17 severity=3D= warning kernel: kworker/u36:2 D 0000000000000002 0 20256 2 0x0000008= 0 severity=3Dinfo kernel: Workqueue: writeback bdi_writeback_workfn (flush-253:32) severi= ty=3Dinfo kernel: ffff881b4ef83448 0000000000000046 ffff881b4ef833f8 ffff881b4ef8= 0010 severity=3Dwarning kernel: 0000000000012c40 0000000000012c40 ffff88273a238e60 ffff88273e32= 2b20 severity=3Dwarning kernel: ffff881b4ef83418 ffff88277f092c40 ffff88273a238e60 ffffffff8161= 4e10 severity=3Dwarning kernel: Call Trace: severity=3Dwarning kernel: [] ? bit_wait_timeout+0x70/0x70 severity=3Dwa= rning kernel: [] schedule+0x29/0x70 severity=3Dwarning kernel: [] io_schedule+0x8c/0xd0 severity=3Dwarning kernel: [] bit_wait_io+0x2c/0x50 severity=3Dwarning kernel: [] __wait_on_bit+0x65/0x90 severity=3Dwarning kernel: [] ? mb_mark_used+0x297/0x350 [ext4] severity= =3Dwarning kernel: [] ? bit_wait_timeout+0x70/0x70 severity=3Dwa= rning kernel: [] out_of_line_wait_on_bit+0x78/0x90 severity= =3Dwarning kernel: [] ? wake_atomic_t_function+0x40/0x40 severit= y=3Dwarning kernel: [] do_get_write_access+0x1fd/0x4e0 [jbd2] sev= erity=3Dwarning kernel: [] ? __getblk_gfp+0x3a/0x80 severity=3Dwarnin= g kernel: [] jbd2_journal_get_write_access+0x31/0x50 [j= bd2] severity=3Dwarning kernel: [] __ext4_journal_get_write_access+0x43/0x90 = [ext4] severity=3Dwarning kernel: [] ? ext4_read_block_bitmap+0x3a/0x60 [ext4] = severity=3Dwarning kernel: [] ext4_mb_mark_diskspace_used+0x79/0x320 [ex= t4] severity=3Dwarning kernel: [] ext4_mb_new_blocks+0x331/0x510 [ext4] seve= rity=3Dwarning kernel: [] ext4_ext_map_blocks+0x877/0xae0 [ext4] sev= erity=3Dwarning kernel: [] ? release_pages+0x1e1/0x250 severity=3Dwar= ning kernel: [] ext4_map_blocks+0x176/0x4b0 [ext4] severit= y=3Dwarning kernel: [] ? mpage_prepare_extent_to_map+0x304/0x350 = [ext4] severity=3Dwarning kernel: [] mpage_map_one_extent+0x71/0x1a0 [ext4] sev= erity=3Dwarning kernel: [] mpage_map_and_submit_extent+0x4b/0x220 [ex= t4] severity=3Dwarning kernel: [] ? __ext4_journal_start_sb+0x74/0x100 [ext4= ] severity=3Dwarning kernel: [] ext4_writepages+0x4cb/0x630 [ext4] severit= y=3Dwarning kernel: [] ? blk_mq_flush_plug_list+0x135/0x150 sever= ity=3Dwarning kernel: [] ? set_next_entity+0x93/0xa0 severity=3Dwar= ning kernel: [] do_writepages+0x20/0x40 severity=3Dwarning kernel: [] __writeback_single_inode+0x40/0x220 severi= ty=3Dwarning kernel: [] ? wake_up_bit+0x2f/0x40 severity=3Dwarning kernel: [] writeback_sb_inodes+0x2b4/0x3c0 severity=3D= warning kernel: [] ? put_super+0x31/0x40 severity=3Dwarning kernel: [] __writeback_inodes_wb+0x9e/0xd0 severity=3D= warning kernel: [] wb_writeback+0x243/0x2d0 severity=3Dwarnin= g kernel: [] wb_do_writeback+0xfb/0x1e0 severity=3Dwarn= ing kernel: [] bdi_writeback_workfn+0x70/0x210 severity=3D= warning kernel: [] process_one_work+0x143/0x4b0 severity=3Dwa= rning kernel: [] worker_thread+0x123/0x520 severity=3Dwarni= ng kernel: [] ? __schedule+0x375/0x750 severity=3Dwarnin= g kernel: [] ? maybe_create_worker+0x130/0x130 severity= =3Dwarning kernel: [] kthread+0xce/0xf0 severity=3Dwarning kernel: [] ? kthread_freezable_should_stop+0x70/0x70 = severity=3Dwarning kernel: [] ret_from_fork+0x58/0x90 severity=3Dwarning kernel: [] ? kthread_freezable_should_stop+0x70/0x70 = severity=3Dwarning kernel: postmaster D 0000000000000009 0 14855 25395 0x0000008= 0 severity=3Dinfo kernel: ffff8822bf3877b8 0000000000000082 ffff8822bf387768 ffff8822bf38= 4010 severity=3Dwarning kernel: 0000000000012c40 0000000000012c40 ffff8825d71f5640 ffff88273e39= 1cc0 severity=3Dwarning kernel: ffff8822bf387788 ffff88277f252c40 ffff8825d71f5640 ffffffff8161= 4e10 severity=3Dwarning kernel: Call Trace: severity=3Dwarning kernel: [] ? bit_wait_timeout+0x70/0x70 severity=3Dwa= rning kernel: [] schedule+0x29/0x70 severity=3Dwarning kernel: [] io_schedule+0x8c/0xd0 severity=3Dwarning kernel: [] bit_wait_io+0x2c/0x50 severity=3Dwarning kernel: [] __wait_on_bit+0x65/0x90 severity=3Dwarning kernel: [] ? bh_lru_install+0x170/0x1a0 severity=3Dwa= rning kernel: [] ? bit_wait_timeout+0x70/0x70 severity=3Dwa= rning kernel: [] out_of_line_wait_on_bit+0x78/0x90 severity= =3Dwarning kernel: [] ? wake_atomic_t_function+0x40/0x40 severit= y=3Dwarning kernel: [] do_get_write_access+0x1fd/0x4e0 [jbd2] sev= erity=3Dwarning kernel: [] jbd2_journal_get_write_access+0x31/0x50 [j= bd2] severity=3Dwarning kernel: [] __ext4_journal_get_write_access+0x43/0x90 = [ext4] severity=3Dwarning kernel: [] ? ext4_read_block_bitmap+0x3a/0x60 [ext4] = severity=3Dwarning kernel: [] ext4_mb_mark_diskspace_used+0xeb/0x320 [ex= t4] severity=3Dwarning kernel: [] ext4_mb_new_blocks+0x331/0x510 [ext4] seve= rity=3Dwarning kernel: [] ext4_ext_map_blocks+0x877/0xae0 [ext4] sev= erity=3Dwarning kernel: [] ? release_pages+0x1e1/0x250 severity=3Dwar= ning kernel: [] ext4_map_blocks+0x176/0x4b0 [ext4] severit= y=3Dwarning kernel: [] ? mpage_prepare_extent_to_map+0x304/0x350 = [ext4] severity=3Dwarning kernel: [] mpage_map_one_extent+0x71/0x1a0 [ext4] sev= erity=3Dwarning kernel: [] mpage_map_and_submit_extent+0x4b/0x220 [ex= t4] severity=3Dwarning kernel: [] ext4_writepages+0x4cb/0x630 [ext4] severit= y=3Dwarning kernel: [] ? handle_mm_fault+0xb2/0x1a0 severity=3Dwa= rning kernel: [] do_writepages+0x20/0x40 severity=3Dwarning kernel: [] __filemap_fdatawrite_range+0x59/0x60 sever= ity=3Dwarning kernel: [] filemap_write_and_wait_range+0xaa/0x100 se= verity=3Dwarning kernel: [] ext4_sync_file+0xf3/0x260 [ext4] severity=3D= warning kernel: [] vfs_fsync_range+0x21/0x30 severity=3Dwarni= ng kernel: [] vfs_fsync+0x1c/0x20 severity=3Dwarning kernel: [] do_fsync+0x3d/0x70 severity=3Dwarning kernel: [] SyS_fsync+0x10/0x20 severity=3Dwarning kernel: [] system_call_fastpath+0x12/0x17 severity=3D= warning kernel: postmaster D 0000000000000006 0 14856 25395 0x0000008= 0 severity=3Dinfo kernel: ffff88262affb8a8 0000000000000086 ffff88262affb858 ffff88262aff= 8010 severity=3Dwarning kernel: 0000000000012c40 0000000000012c40 ffff88266aab1cc0 ffff88273e32= 64a0 severity=3Dwarning kernel: ffff88225c97d6a0 ffff88277f192c40 ffff88266aab1cc0 ffffffff8161= 4e10 severity=3Dwarning kernel: Call Trace: severity=3Dwarning kernel: [] ? bit_wait_timeout+0x70/0x70 severity=3Dwa= rning kernel: [] schedule+0x29/0x70 severity=3Dwarning kernel: [] io_schedule+0x8c/0xd0 severity=3Dwarning kernel: [] bit_wait_io+0x2c/0x50 severity=3Dwarning kernel: [] __wait_on_bit+0x65/0x90 severity=3Dwarning kernel: [] ? start_this_handle+0x28e/0x520 [jbd2] sev= erity=3Dwarning kernel: [] ? bit_wait_timeout+0x70/0x70 severity=3Dwa= rning kernel: [] out_of_line_wait_on_bit+0x78/0x90 severity= =3Dwarning kernel: [] ? wake_atomic_t_function+0x40/0x40 severit= y=3Dwarning kernel: [] do_get_write_access+0x1fd/0x4e0 [jbd2] sev= erity=3Dwarning kernel: [] jbd2_journal_get_write_access+0x31/0x50 [j= bd2] severity=3Dwarning kernel: [] __ext4_journal_get_write_access+0x43/0x90 = [ext4] severity=3Dwarning kernel: [] __ext4_new_inode+0x3a4/0x1110 [ext4] sever= ity=3Dwarning kernel: [] ? __dquot_initialize+0x30/0x1e0 severity=3D= warning kernel: [] ext4_create+0xab/0x170 [ext4] severity=3Dw= arning kernel: [] vfs_create+0xd8/0x100 severity=3Dwarning kernel: [] lookup_open+0x13e/0x1d0 severity=3Dwarning kernel: [] do_last+0x416/0x820 severity=3Dwarning kernel: [] path_openat+0xc4/0x480 severity=3Dwarning kernel: [] ? putname+0x29/0x40 severity=3Dwarning kernel: [] do_filp_open+0x4a/0xa0 severity=3Dwarning kernel: [] ? __alloc_fd+0xac/0x150 severity=3Dwarning kernel: [] do_sys_open+0x11a/0x230 severity=3Dwarning kernel: [] ? syscall_trace_enter_phase1+0x133/0x150 s= everity=3Dwarning kernel: [] ? __audit_syscall_exit+0x246/0x2f0 severit= y=3Dwarning kernel: [] SyS_open+0x1e/0x20 severity=3Dwarning kernel: [] system_call_fastpath+0x12/0x17 severity=3D= warning kernel: postmaster D 0000000000000010 0 14857 25395 0x0000008= 0 severity=3Dinfo kernel: ffff880748203df8 0000000000000082 ffff8826a94e67c8 ffff88074820= 0010 severity=3Dwarning kernel: 0000000000012c40 0000000000012c40 ffff88266aab5640 ffff88273e3b= 8e60 severity=3Dwarning kernel: ffff880748203e08 00000000023bc691 ffff882737c2e800 ffff88074820= 3e38 severity=3Dwarning kernel: Call Trace: severity=3Dwarning kernel: [] schedule+0x29/0x70 severity=3Dwarning kernel: [] jbd2_log_wait_commit+0xe5/0x170 [jbd2] sev= erity=3Dwarning kernel: [] ? woken_wake_function+0x20/0x20 severity=3D= warning kernel: [] jbd2_complete_transaction+0x57/0x90 [jbd2]= severity=3Dwarning kernel: [] ext4_sync_file+0x1fd/0x260 [ext4] severity= =3Dwarning kernel: [] vfs_fsync_range+0x21/0x30 severity=3Dwarni= ng kernel: [] vfs_fsync+0x1c/0x20 severity=3Dwarning kernel: [] do_fsync+0x3d/0x70 severity=3Dwarning kernel: [] SyS_fsync+0x10/0x20 severity=3Dwarning kernel: [] system_call_fastpath+0x12/0x17 severity=3D= warning kernel: postmaster D 0000000000000001 0 14859 25395 0x0000008= 0 severity=3Dinfo kernel: ffff8820d2017c38 0000000000000082 ffff882700000000 ffff8820d201= 4010 severity=3Dwarning kernel: 0000000000012c40 0000000000012c40 ffff882657c99cc0 ffff88273e32= 1cc0 severity=3Dwarning kernel: ffff882657c99cc0 ffff8826feadc068 ffff882657c99cc0 ffff8826fead= c06c severity=3Dwarning kernel: Call Trace: severity=3Dwarning kernel: [] schedule+0x29/0x70 severity=3Dwarning kernel: [] schedule_preempt_disabled+0xe/0x10 severit= y=3Dwarning kernel: [] __mutex_lock_slowpath+0x95/0x100 severity=3D= warning kernel: [] mutex_lock+0x23/0x40 severity=3Dwarning kernel: [] do_last+0x3fc/0x820 severity=3Dwarning kernel: [] path_openat+0xc4/0x480 severity=3Dwarning kernel: [] ? mutex_lock+0x16/0x40 severity=3Dwarning kernel: [] do_filp_open+0x4a/0xa0 severity=3Dwarning kernel: [] ? __alloc_fd+0xac/0x150 severity=3Dwarning kernel: [] do_sys_open+0x11a/0x230 severity=3Dwarning kernel: [] ? syscall_trace_enter_phase1+0x133/0x150 s= everity=3Dwarning kernel: [] ? __audit_syscall_exit+0x246/0x2f0 severit= y=3Dwarning kernel: [] SyS_open+0x1e/0x20 severity=3Dwarning kernel: [] system_call_fastpath+0x12/0x17 severity=3D= warning kernel: postmaster D 000000000000000e 0 14860 25395 0x0000008= 0 severity=3Dinfo kernel: ffff8820d22fbdf8 0000000000000086 ffff8826947ba4d8 ffff8820d22f= 8010 severity=3Dwarning kernel: 0000000000012c40 0000000000012c40 ffff88266a93e4a0 ffff88273e39= 64a0 severity=3Dwarning kernel: ffff8820d22fbe08 00000000023bc691 ffff882737c2e800 ffff8820d22f= be38 severity=3Dwarning kernel: Call Trace: severity=3Dwarning kernel: [] schedule+0x29/0x70 severity=3Dwarning kernel: [] jbd2_log_wait_commit+0xe5/0x170 [jbd2] sev= erity=3Dwarning kernel: [] ? woken_wake_function+0x20/0x20 severity=3D= warning kernel: [] jbd2_complete_transaction+0x57/0x90 [jbd2]= severity=3Dwarning kernel: [] ext4_sync_file+0x1fd/0x260 [ext4] severity= =3Dwarning kernel: [] vfs_fsync_range+0x21/0x30 severity=3Dwarni= ng kernel: [] vfs_fsync+0x1c/0x20 severity=3Dwarning kernel: [] do_fsync+0x3d/0x70 severity=3Dwarning kernel: [] SyS_fsync+0x10/0x20 severity=3Dwarning kernel: [] system_call_fastpath+0x12/0x17 severity=3D= warning kernel: postmaster D 0000000000000007 0 14861 25395 0x0000008= 0 severity=3Dinfo kernel: ffff88041dfdfc38 0000000000000082 0000000000000000 ffff88041dfd= c010 severity=3Dwarning kernel: 0000000000012c40 0000000000012c40 ffff88266a939cc0 ffff88273e39= 0000 severity=3Dwarning kernel: ffff88281ffd8d80 ffff8826feadc068 ffff88266a939cc0 ffff8826fead= c06c severity=3Dwarning kernel: Call Trace: severity=3Dwarning kernel: [] schedule+0x29/0x70 severity=3Dwarning kernel: [