Hi, Since upgrading to "2.6.18-194" I am getting odd messages in the logs. Such as; sraid3 kernel INFO task pdflush 259 blocked for more than 120 seconds. The output from > grep '120 seconds' /var/log/messages | tr : ' ' | awk '{print $10}' | sort | uniq -c 6 nfsd 4 pdflush This is from an NFS server that since the upgrade has been flakey. I have an identical server running "2.6.18-164.11.1" and no such messages are seen. is anyone else seeing this and/or know what is going on? Steve The messages appear as follows. ============================================================================================ Jun 7 19:45:21 sraid3 kernel: INFO: task nfsd:3369 blocked for more than 120 seconds. Jun 7 19:45:21 sraid3 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Jun 7 19:45:21 sraid3 kernel: nfsd D ffff8101062a9100 0 3369 1 3370 3368 (L-TLB) Jun 7 19:45:21 sraid3 kernel: ffff8101053519e0 0000000000000046 0000000000000020 ffff810105ea0780 Jun 7 19:45:21 sraid3 kernel: ffff8101180e203a 000000000000000a ffff81013ecb77a0 ffff8101062a9100 Jun 7 19:45:21 sraid3 kernel: 00000cab54499f77 00000000000026c3 ffff81013ecb7988 00000001000002d8 Jun 7 19:45:21 sraid3 kernel: Call Trace: Jun 7 19:45:21 sraid3 kernel: [<ffffffff80064b29>] _spin_lock_bh+0x9/0x14 Jun 7 19:45:21 sraid3 kernel: [<ffffffff800ec2a2>] inode_wait+0x0/0xd Jun 7 19:45:21 sraid3 kernel: [<ffffffff800ec2ab>] inode_wait+0x9/0xd Jun 7 19:45:21 sraid3 kernel: [<ffffffff80063a16>] __wait_on_bit+0x40/0x6e Jun 7 19:45:21 sraid3 kernel: [<ffffffff800ec2a2>] inode_wait+0x0/0xd Jun 7 19:45:21 sraid3 kernel: [<ffffffff80063ab0>] out_of_line_wait_on_bit+0x6c/0x78 Jun 7 19:45:21 sraid3 kernel: [<ffffffff800a0aec>] wake_bit_function+0x0/0x23 Jun 7 19:45:21 sraid3 kernel: [<ffffffff8003dbbf>] ifind_fast+0x6e/0x83 Jun 7 19:45:21 sraid3 kernel: [<ffffffff80023290>] iget_locked+0x59/0x149 Jun 7 19:45:21 sraid3 kernel: [<ffffffff88cf0b0f>] :ext4:ext4_iget+0x16/0x65a Jun 7 19:45:21 sraid3 kernel: [<ffffffff800a0abe>] autoremove_wake_function+0x0/0x2e Jun 7 19:45:21 sraid3 kernel: [<ffffffff88cf8171>] :ext4:ext4_get_dentry+0x3b/0x87 Jun 7 19:45:21 sraid3 kernel: [<ffffffff88dcf36b>] :exportfs:find_exported_dentry+0x43/0x480 Jun 7 19:45:21 sraid3 kernel: [<ffffffff88ddc753>] :nfsd:nfsd_acceptable+0x0/0xd8 Jun 7 19:45:21 sraid3 kernel: [<ffffffff88de074f>] :nfsd:exp_get_by_name+0x5b/0x71 Jun 7 19:45:21 sraid3 kernel: [<ffffffff88de0d3e>] :nfsd:exp_find_key+0x89/0x9c Jun 7 19:45:21 sraid3 kernel: [<ffffffff8008b4b1>] __wake_up_common+0x3e/0x68 Jun 7 19:45:21 sraid3 kernel: [<ffffffff8009b1dd>] set_current_groups+0x159/0x164 Jun 7 19:45:21 sraid3 kernel: [<ffffffff88dcf7f3>] :exportfs:export_decode_fh+0x4b/0x50 Jun 7 19:45:21 sraid3 kernel: [<ffffffff88ddcac5>] :nfsd:fh_verify+0x29a/0x4bd Jun 7 19:45:21 sraid3 kernel: [<ffffffff88dddccf>] :nfsd:nfsd_open+0x20/0x184 Jun 7 19:45:21 sraid3 kernel: [<ffffffff88dddffb>] :nfsd:nfsd_write+0x89/0xd5 Jun 7 19:45:21 sraid3 kernel: [<ffffffff88de4b1a>] :nfsd:nfsd3_proc_write+0xea/0x109 Jun 7 19:45:21 sraid3 kernel: [<ffffffff88dda1db>] :nfsd:nfsd_dispatch+0xd8/0x1d6 Jun 7 19:45:21 sraid3 kernel: [<ffffffff88d5a651>] :sunrpc:svc_process+0x454/0x71b Jun 7 19:45:21 sraid3 kernel: [<ffffffff80064644>] __down_read+0x12/0x92 Jun 7 19:45:21 sraid3 kernel: [<ffffffff88dda5a1>] :nfsd:nfsd+0x0/0x2cb Jun 7 19:45:21 sraid3 kernel: [<ffffffff88dda746>] :nfsd:nfsd+0x1a5/0x2cb Jun 7 19:45:21 sraid3 kernel: [<ffffffff8005dfb1>] child_rip+0xa/0x11 Jun 7 19:45:21 sraid3 kernel: [<ffffffff88dda5a1>] :nfsd:nfsd+0x0/0x2cb Jun 7 19:45:21 sraid3 kernel: [<ffffffff88dda5a1>] :nfsd:nfsd+0x0/0x2cb Jun 7 19:45:21 sraid3 kernel: [<ffffffff8005dfa7>] child_rip+0x0/0x11 ============================================================================================ -- Dr Stephen Brooks http://www-solar.mcs.st-and.ac.uk/ Solar MHD Theory Group Tel :: 01334 463735 Fax :: 01334 463748 E-mail :: steveb@xxxxxxxxxxxxxxxxxxxx --------------------------------------- Mathematical Institute North Haugh University of St. Andrews St Andrews, Fife KY16 9SS SCOTLAND --------------------------------------- _______________________________________________ CentOS mailing list CentOS@xxxxxxxxxx http://lists.centos.org/mailman/listinfo/centos