Am Dienstag, 6. Oktober 2009 16:22:08 schrieb Brian J. Murrell: > On Tue, 2009-10-06 at 12:48 +0200, Michael Schwartzkopff wrote: > > Hi, > > Hi, > > > my system load shows that quite a number of processes are waiting. > > Blocked. I guess the word waiting is similar. > > > My questions are: > > What causes the problem? > > In this case, the thread has lbugged previously. > > If you look in syslog for node with these processes you should find > entries with LBUG and/or ASSERTION messages. These are the defects that > are causing the processes to get blocked (uninteruptable sleep) (...)
Here is some additional from the logs. Any ideas about that? Oct 5 10:26:43 sosmds2 kernel: LustreError: 30617:0: (pack_generic.c:655:lustre_shrink_reply_v2()) ASSERTION(msg->lm_bufcount > segment) failed Oct 5 10:26:43 sosmds2 kernel: LustreError: 30617:0: (pack_generic.c:655:lustre_shrink_reply_v2()) LBUG Oct 5 10:26:43 sosmds2 kernel: Lustre: 30617:0:(linux- debug.c:264:libcfs_debug_dumpstack()) showing stack for process 30617 Oct 5 10:26:43 sosmds2 kernel: ll_mdt_47 R running task 0 30617 1 30618 30616 (L-TLB) Oct 5 10:26:43 sosmds2 kernel: 0000000000000000 0000000000000001 0000000714a28100 0000000000000001 Oct 5 10:26:43 sosmds2 kernel: 0000000000000001 0000000000000086 0000000000000012 ffff8102212dfe88 Oct 5 10:26:43 sosmds2 kernel: 0000000000000001 0000000000000000 ffffffff802f6aa0 0000000000000000 Oct 5 10:26:43 sosmds2 kernel: Call Trace: Oct 5 10:26:43 sosmds2 kernel: [<ffffffff8009daf8>] autoremove_wake_function+0x9/0x2e Oct 5 10:26:43 sosmds2 kernel: [<ffffffff80088819>] __wake_up_common+0x3e/0x68 Oct 5 10:26:43 sosmds2 kernel: [<ffffffff80088819>] __wake_up_common+0x3e/0x68 Oct 5 10:26:43 sosmds2 kernel: [<ffffffff8008f7ac>] vprintk+0x2cb/0x317 Oct 5 10:26:43 sosmds2 kernel: [<ffffffff800a540a>] kallsyms_lookup+0xc2/0x17b Oct 5 10:26:43 sosmds2 last message repeated 3 times Oct 5 10:26:43 sosmds2 kernel: [<ffffffff8006bb5d>] printk_address+0x9f/0xab Oct 5 10:26:43 sosmds2 kernel: [<ffffffff8008f800>] printk+0x8/0xbd Oct 5 10:26:43 sosmds2 kernel: [<ffffffff8008f84a>] printk+0x52/0xbd Oct 5 10:26:43 sosmds2 kernel: [<ffffffff800a2e08>] module_text_address+0x33/0x3c Oct 5 10:26:43 sosmds2 kernel: [<ffffffff8009c088>] kernel_text_address+0x1a/0x26 Oct 5 10:26:43 sosmds2 kernel: [<ffffffff8006b843>] dump_trace+0x211/0x23a Oct 5 10:26:43 sosmds2 kernel: [<ffffffff8006b8a0>] show_trace+0x34/0x47 Oct 5 10:26:43 sosmds2 kernel: [<ffffffff8006b9a5>] _show_stack+0xdb/0xea Oct 5 10:26:43 sosmds2 kernel: [<ffffffff885b1ada>] :libcfs:lbug_with_loc+0x7a/0xd0 Oct 5 10:26:43 sosmds2 kernel: [<ffffffff885b9c70>] :libcfs:tracefile_init+0x0/0x110 Oct 5 10:26:43 sosmds2 kernel: [<ffffffff88712218>] :ptlrpc:lustre_shrink_reply_v2+0xa8/0x240 Oct 5 10:26:43 sosmds2 kernel: [<ffffffff889ec529>] :mds:mds_getattr_lock+0xc59/0xce0 Oct 5 10:26:43 sosmds2 kernel: [<ffffffff88710ea4>] :ptlrpc:lustre_msg_add_version+0x34/0x110 Oct 5 10:26:43 sosmds2 kernel: [<ffffffff88602923>] :lnet:lnet_ni_send+0x93/0xd0 Oct 5 10:26:43 sosmds2 kernel: [<ffffffff88604d23>] :lnet:lnet_send+0x973/0x9a0 Oct 5 10:26:43 sosmds2 kernel: [<ffffffff8005c2dc>] cache_alloc_refill+0x106/0x186 Oct 5 10:26:43 sosmds2 kernel: [<ffffffff889e6fca>] :mds:fixup_handle_for_resent_req+0x5a/0x2c0 Oct 5 10:26:43 sosmds2 kernel: [<ffffffff889f2a76>] :mds:mds_intent_policy+0x636/0xc10 Oct 5 10:26:43 sosmds2 kernel: [<ffffffff886d36f6>] :ptlrpc:ldlm_resource_putref+0x1b6/0x3a0 Oct 5 10:26:43 sosmds2 kernel: [<ffffffff886d0d46>] :ptlrpc:ldlm_lock_enqueue+0x186/0xb30 Oct 5 10:26:43 sosmds2 kernel: [<ffffffff886ecacf>] :ptlrpc:ldlm_export_lock_get+0x6f/0xe0 Oct 5 10:26:43 sosmds2 kernel: [<ffffffff8864fe48>] :obdclass:lustre_hash_add+0x218/0x2e0 Oct 5 10:26:43 sosmds2 kernel: [<ffffffff886f5530>] :ptlrpc:ldlm_server_blocking_ast+0x0/0x83d Oct 5 10:26:43 sosmds2 kernel: [<ffffffff886f3669>] :ptlrpc:ldlm_handle_enqueue+0xc19/0x1210 Oct 5 10:26:43 sosmds2 kernel: [<ffffffff889f0630>] :mds:mds_handle+0x4080/0x4cb0 Oct 5 10:26:43 sosmds2 kernel: [<ffffffff80148d4f>] __next_cpu+0x19/0x28 Oct 5 10:26:43 sosmds2 kernel: [<ffffffff80088f32>] find_busiest_group+0x20d/0x621 Oct 5 10:26:43 sosmds2 kernel: [<ffffffff88715a15>] :ptlrpc:lustre_msg_get_conn_cnt+0x35/0xf0 Oct 5 10:26:43 sosmds2 kernel: [<ffffffff80089d89>] enqueue_task+0x41/0x56 Oct 5 10:26:43 sosmds2 kernel: [<ffffffff8871a72d>] :ptlrpc:ptlrpc_check_req+0x1d/0x110 Oct 5 10:26:43 sosmds2 kernel: [<ffffffff8871ce67>] :ptlrpc:ptlrpc_server_handle_request+0xa97/0x1160 Oct 5 10:26:43 sosmds2 kernel: [<ffffffff80063098>] thread_return+0x62/0xfe Oct 5 10:26:43 sosmds2 kernel: [<ffffffff80088819>] __wake_up_common+0x3e/0x68 Oct 5 10:26:43 sosmds2 kernel: [<ffffffff88720908>] :ptlrpc:ptlrpc_main+0x1218/0x13e0 Oct 5 10:26:43 sosmds2 kernel: [<ffffffff8008a3ef>] default_wake_function+0x0/0xe Oct 5 10:26:43 sosmds2 kernel: [<ffffffff800b48dd>] audit_syscall_exit+0x327/0x342 Oct 5 10:26:43 sosmds2 kernel: [<ffffffff8005dfb1>] child_rip+0xa/0x11 Oct 5 10:26:43 sosmds2 kernel: [<ffffffff8871f6f0>] :ptlrpc:ptlrpc_main+0x0/0x13e0 Oct 5 10:26:43 sosmds2 kernel: [<ffffffff8005dfa7>] child_rip+0x0/0x11 Oct 5 10:26:43 sosmds2 kernel: Oct 5 10:26:43 sosmds2 kernel: LustreError: dumping log to /tmp/lustre- log.1254731203.30617 -- Dr. Michael Schwartzkopff MultiNET Services GmbH Addresse: Bretonischer Ring 7; 85630 Grasbrunn; Germany Tel: +49 - 89 - 45 69 11 0 Fax: +49 - 89 - 45 69 11 21 mob: +49 - 174 - 343 28 75 mail: [email protected] web: www.multinet.de Sitz der Gesellschaft: 85630 Grasbrunn Registergericht: Amtsgericht München HRB 114375 Geschäftsführer: Günter Jurgeneit, Hubert Martens --- PGP Fingerprint: F919 3919 FF12 ED5A 2801 DEA6 AA77 57A4 EDD8 979B Skype: misch42 _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
