Messages in this thread |  | | Date | Wed, 12 Feb 2014 10:18:30 -0500 | From | "Jason J. Herne" <> | Subject | Re: Subject: Warning in workqueue.c |
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On 02/10/2014 06:17 PM, Tejun Heo wrote: > Hello, > > On Mon, Feb 10, 2014 at 10:32:11AM -0500, Jason J. Herne wrote: >> [ 950.778485] XXX: worker->flags=0x1 pool->flags=0x0 cpu=6 >> pool->cpu=2 rescue_wq= (null) >> [ 950.778488] XXX: last_unbind=-7 last_rebind=0 >> last_rebound_clear=0 nr_exected_after_rebound_clear=0 >> [ 950.778492] XXX: cpus_allowed=2 >> [ 950.778495] XXX: cpus_allowed_after_rebinding=2 > > So, everything looks kosher from workqueue side. Weird. cpus_allowed > is properly set and everything. The worker just isn't running on the > cpu it's supposed to be on. Can you please try the following?
Thanks for the fast responses. Here is the output from the last patch:
[34437.173991] WARNING: at kernel/workqueue.c:2156 [34437.173993] Modules linked in: ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack xt_CHECKSUM iptable_mangle bridge stp llc ip6table_filter ip6_tables ebtable_nat ebtables iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi qeth_l2 tape_3590 tape tape_class vhost_net tun vhost macvtap macvlan lcs dasd_eckd_mod dasd_mod qeth ccwgroup zfcp scsi_transport_fc scsi_tgt qdio dm_multipath [last unloaded: kvm] [34437.174030] CPU: 2 PID: 12 Comm: kworker/1:0 Not tainted 3.14.0-rc1 #1 [34437.174034] task: 00000000f7c9e4c0 ti: 00000000f7cbc000 task.ti: 00000000f7cbc000 [34437.174046] Krnl PSW : 0404c00180000000 000000000015b406 (process_one_work+0x61a/0x640) [34437.174051] R:0 T:1 IO:0 EX:0 Key:0 M:1 W:0 P:0 AS:3 CC:0 PM:0 EA:3 Krnl GPRS: 000000007c325b00 0000000000bc2a52 00000000f7f52780 0000000000000001 [34437.174057] 0000000000000000 0000000000000002 0000000000000001 0000000000bc2a4e [34437.174061] 0000000000000000 0000000084a13500 0000000084a0f000 0000000084a0f018 [34437.174065] 00000000f7f52780 0000000000735d18 00000000f7cbfdd0 00000000f7cbfd58 [34437.174085] Krnl Code: 000000000015b3fa: 92013000 mvi 0(%r3),1 000000000015b3fe: a7f4ff31 brc 15,15b260 #000000000015b402: a7f40001 brc 15,15b404 >000000000015b406: 92011000 mvi 0(%r1),1 000000000015b40a: a7f4fe84 brc 15,15b112 000000000015b40e: 41102018 la %r1,24(%r2) 000000000015b412: e31020180020 cg %r1,24(%r2) 000000000015b418: a784ff59 brc 8,15b2ca [34437.174115] Call Trace: [34437.174118] ([<000000000015b0e0>] process_one_work+0x2f4/0x640) [34437.174122] [<000000000015ba0e>] worker_thread+0x19a/0x3c0 [34437.174126] [<0000000000164842>] kthread+0x10e/0x128 [34437.174132] [<0000000000728e56>] kernel_thread_starter+0x6/0xc [34437.174136] [<0000000000728e50>] kernel_thread_starter+0x0/0xc [34437.174138] Last Breaking-Event-Address: [34437.174141] [<000000000015b402>] process_one_work+0x616/0x640 [34437.174144] ---[ end trace 52d8ee96597a2415 ]--- [34437.174148] XXX: worker->flags=0x1 pool->flags=0x0 cpu=2 pool->cpu=1(1) rescue_wq= (null) [34437.174152] XXX: last_unbind=-34 last_rebind=0 last_rebound_clear=0 nr_exected_after_rebound_clear=0 [34437.174156] XXX: cpus_allowed=1 [34437.174158] XXX: cpus_allowed_after_rebinding=1 [34437.174161] BUG: scheduling while atomic: kworker/1:0/12/0x00000002 [34437.174164] Modules linked in: ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack xt_CHECKSUM iptable_mangle bridge stp llc ip6table_filter ip6_tables ebtable_nat ebtables iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi qeth_l2 tape_3590 tape tape_class vhost_net tun vhost macvtap macvlan lcs dasd_eckd_mod dasd_mod qeth ccwgroup zfcp scsi_transport_fc scsi_tgt qdio dm_multipath [last unloaded: kvm] [34437.174194] CPU: 2 PID: 12 Comm: kworker/1:0 Tainted: G W 3.14.0-rc1 #1 [34437.174197] 00000000f7cbfb80 00000000f7cbfb90 0000000000000002 0000000000000000 00000000f7cbfc20 00000000f7cbfb98 00000000f7cbfb98 0000000000115f6a 0000000000000003 0000000000c4da00 000000000000000a 000000000000000a 00000000f7cbfbe0 00000000f7cbfb80 0000000000000000 0000000000000000 0000000000000000 0000000000115f6a 00000000f7cbfb80 00000000f7cbfbd0 [34437.174273] Call Trace: [34437.174279] ([<0000000000115e5c>] show_trace+0x100/0x148) [34437.174282] [<0000000000115f18>] show_stack+0x74/0xf4 [34437.174288] [<0000000000720a9c>] dump_stack+0x88/0xb8 [34437.174291] [<000000000071aa40>] __schedule_bug+0x78/0x90 [34437.174295] [<00000000007237e4>] __schedule+0xb8c/0xbac [34437.174299] [<000000000015b21e>] process_one_work+0x432/0x640 [34437.174302] [<000000000015ba0e>] worker_thread+0x19a/0x3c0 [34437.174306] [<0000000000164842>] kthread+0x10e/0x128 [34437.174309] [<0000000000728e56>] kernel_thread_starter+0x6/0xc [34437.174313] [<0000000000728e50>] kernel_thread_starter+0x0/0xc [34437.174317] XXX: after schedule(), cpu=2
-- -- Jason J. Herne (jjherne@linux.vnet.ibm.com)
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