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UEK2 OVS reboots due to csd_lock_wait+0x16/0x20 (Doc ID 2198198.1)

Last updated on AUGUST 04, 2018

Applies to:

Oracle VM - Version 3.2.8 and later
Information in this document applies to any platform.

Symptoms

On : 3.3.2 version, Dom0, HostOS, Management Domain

ACTUAL BEHAVIOR
---------------
Oracle VM Server using UEK 2 2.6.39-300.32.6.el5uek  reboots following the error below

 

Oct 17 03:24:28 ovm49 kernel: BUG: soft lockup - CPU#12 stuck for 23s! [python:20684]
Oct 17 03:24:28 ovm49 kernel: Modules linked in: iptable_filter ip_tables tun ocfs2 jbd2 xen_blkback xen_netback xen_gntdev xen_evtchn i2c_dev i2c_core ocfs2_dlmfs ocfs2_stack_o2cb ocfs2_dlm ocfs2_nodemanager ocfs2_stackglue configfs lockd sunrpc bridge 8021q garp stp llc bonding be2iscsi iscsi_boot_sysfs ib_iser rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp bnx2i cnic uio ipv6 cxgb3i libcxgbi cxgb3 mdio libiscsi_tcp libiscsi scsi_transport_iscsi xenfs xen_privcmd emcpdm(P)(U) emcpgpx(P)(U) emcpmpx(P)(U) emcp(P)(U) dm_mirror sbs sbshc hed acpi_memhotplug acpi_ipmi ipmi_msghandler parport_pc lp parport video serio_raw be2net hpilo snd_seq_dummy hpwdt snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd soundcore snd_page_alloc pcspkr iTCO_wdt iTCO_vendor_support dm_region_hash dm_log dm_mod usb_storage lpfc scsi_transport_fc scsi_tgt sg shpchp hpsa cciss sd_mod crc_t10dif ext3 jbd mbcache [last unloaded: emcpioc]
Oct 17 03:24:28 ovm49 kernel: CPU 12
Oct 17 03:24:28 ovm49 kernel: Modules linked in: iptable_filter ip_tables tun ocfs2 jbd2 xen_blkback xen_netback xen_gntdev xen_evtchn i2c_dev i2c_core ocfs2_dlmfs ocfs2_stack_o2cb ocfs2_dlm ocfs2_nodemanager ocfs2_stackglue configfs lockd sunrpc bridge 8021q garp stp llc bonding be2iscsi iscsi_boot_sysfs ib_iser rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp bnx2i cnic uio ipv6 cxgb3i libcxgbi cxgb3 mdio libiscsi_tcp libiscsi scsi_transport_iscsi xenfs xen_privcmd emcpdm(P)(U) emcpgpx(P)(U) emcpmpx(P)(U) emcp(P)(U) dm_mirror sbs sbshc hed acpi_memhotplug acpi_ipmi ipmi_msghandler parport_pc lp parport video serio_raw be2net hpilo snd_seq_dummy hpwdt snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd soundcore snd_page_alloc pcspkr iTCO_wdt iTCO_vendor_support dm_region_hash dm_log dm_mod usb_storage lpfc scsi_transport_fc scsi_tgt sg shpchp hpsa cciss sd_mod crc_t10dif ext3 jbd mbcache [last unloaded: emcpioc]
Oct 17 03:24:28 ovm49 kernel:
Oct 17 03:24:28 ovm49 kernel: Pid: 20684, comm: python Tainted: P 2.6.39-300.32.6.el5uek #1 HP ProLiant BL460c Gen8
Oct 17 03:24:28 ovm49 kernel: RIP: e030:[<ffffffff810a8a36>] [<ffffffff810a8a36>] csd_lock_wait+0x16/0x20
Oct 17 03:24:28 ovm49 kernel: RSP: e02b:ffff880420d05b98 EFLAGS: 00000202
Oct 17 03:24:28 ovm49 kernel: RAX: 0000000000000014 RBX: ffff880431192c80 RCX: 000000000000002c
Oct 17 03:24:28 ovm49 kernel: RDX: 0000000000000014 RSI: 0000000000000014 RDI: ffff880431192c80
Oct 17 03:24:28 ovm49 kernel: RBP: ffff880420d05b98 R08: 0000000000000000 R09: ffff880422984600
Oct 17 03:24:28 ovm49 kernel: R10: ffff880422984600 R11: 8000000000000573 R12: 0000000000000013
Oct 17 03:24:28 ovm49 kernel: R13: ffffffff819a7f40 R14: ffffffff819a7f40 R15: ffffffff8104e2f0
Oct 17 03:24:28 ovm49 kernel: FS: 00007f7e3e61e6e0(0000) GS:ffff880431180000(0000) knlGS:0000000000000000
Oct 17 03:24:28 ovm49 kernel: CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b
Oct 17 03:24:28 ovm49 kernel: CR2: 00000000016857a0 CR3: 00000003f32bb000 CR4: 0000000000002660
Oct 17 03:24:28 ovm49 kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Oct 17 03:24:28 ovm49 kernel: DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Oct 17 03:24:28 ovm49 kernel: Process python (pid: 20684, threadinfo ffff880420d04000, task ffff88041b750580)
Oct 17 03:24:28 ovm49 kernel: Stack:
Oct 17 03:24:28 ovm49 kernel: ffff880420d05be8 ffffffff810a93fe ffff880420d05bf8 01ffffff81075197
Oct 17 03:24:28 ovm49 kernel: 0000000000000000 0000000000000000 ffffffff8104e2f0 ffff880420d05cd0
Oct 17 03:24:28 ovm49 kernel: ffff880420d05c58 ffff880420d05c70 ffff880420d05bf8 ffffffff810a9455
Oct 17 03:24:28 ovm49 kernel: Call Trace:
Oct 17 03:24:28 ovm49 kernel: [<ffffffff810a93fe>] smp_call_function_many+0x1ee/0x220
Oct 17 03:24:28 ovm49 kernel: [<ffffffff8104e2f0>] ? leave_mm+0x50/0x50
Oct 17 03:24:28 ovm49 kernel: [<ffffffff810a9455>] smp_call_function+0x25/0x30
Oct 17 03:24:29 ovm49 kernel: [<ffffffff810a948b>] on_each_cpu+0x2b/0x70
Oct 17 03:24:29 ovm49 kernel: [<ffffffff8104e0fc>] flush_tlb_all+0x1c/0x20
Oct 17 03:24:29 ovm49 kernel: [<ffffffff81142ad4>] __purge_vmap_area_lazy+0x194/0x1a0
Oct 17 03:24:29 ovm49 kernel: [<ffffffff81142b8a>] vm_unmap_aliases+0xaa/0x170
Oct 17 03:24:29 ovm49 kernel: [<ffffffff8115b2e4>] ? kmem_cache_alloc_node_trace+0xc4/0x1d0
Oct 17 03:24:29 ovm49 kernel: [<ffffffff8104a7b5>] change_page_attr_set_clr+0xe5/0x210
Oct 17 03:24:29 ovm49 kernel: [<ffffffff81141972>] ? insert_vmalloc_vmlist+0x22/0x70
Oct 17 03:24:29 ovm49 kernel: [<ffffffff8104ac0f>] _set_memory_uc+0x2f/0x40
Oct 17 03:24:29 ovm49 kernel: [<ffffffff810497ed>] ioremap_change_attr+0x1d/0x40
Oct 17 03:24:29 ovm49 kernel: [<ffffffff8104beef>] kernel_map_sync_memtype+0x7f/0x120
Oct 17 03:24:29 ovm49 kernel: [<ffffffff8104953e>] __ioremap_caller+0x20e/0x390
Oct 17 03:24:29 ovm49 kernel: [<ffffffff81049759>] ? xlate_dev_mem_ptr+0x59/0x70
Oct 17 03:24:29 ovm49 kernel: [<ffffffff810496f4>] ioremap_cache+0x14/0x20
Oct 17 03:24:29 ovm49 kernel: [<ffffffff81049759>] xlate_dev_mem_ptr+0x59/0x70
Oct 17 03:24:29 ovm49 kernel: [<ffffffff8133320b>] read_mem+0xdb/0x160
Oct 17 03:24:29 ovm49 kernel: [<ffffffff8116fa6b>] vfs_read+0xcb/0x180
Oct 17 03:24:29 ovm49 kernel: [<ffffffff8116ffc5>] sys_read+0x55/0x90
Oct 17 03:24:29 ovm49 kernel: [<ffffffff81510982>] system_call_fastpath+0x16/0x1b
Oct 17 03:24:29 ovm49 kernel: Code: 6d 81 e8 6e 7a fc ff c9 c3 90 90 90 90 90 90 90 90 90 90 90 90 55 48 89 e5 66 66 66 66 90 f6 47 20 01 74 09 90 f3 90 f6 47 20 01
Oct 17 03:24:29 ovm49 kernel: <75> f8 c9 c3 66 0f 1f 44 00 00 55 48 89 e5 53 66 66 66 66 90 48
Oct 17 03:24:29 ovm49 kernel: Call Trace:
Oct 17 03:24:29 ovm49 kernel: [<ffffffff810a93fe>] smp_call_function_many+0x1ee/0x220
Oct 17 03:24:29 ovm49 kernel: [<ffffffff8104e2f0>] ? leave_mm+0x50/0x50
Oct 17 03:24:29 ovm49 kernel: [<ffffffff810a9455>] smp_call_function+0x25/0x30
Oct 17 03:24:29 ovm49 kernel: [<ffffffff810a948b>] on_each_cpu+0x2b/0x70
Oct 17 03:24:29 ovm49 kernel: [<ffffffff8104e0fc>] flush_tlb_all+0x1c/0x20
Oct 17 03:24:29 ovm49 kernel: [<ffffffff81142ad4>] __purge_vmap_area_lazy+0x194/0x1a0
Oct 17 03:24:29 ovm49 kernel: [<ffffffff81142b8a>] vm_unmap_aliases+0xaa/0x170
Oct 17 03:24:29 ovm49 kernel: [<ffffffff8115b2e4>] ? kmem_cache_alloc_node_trace+0xc4/0x1d0
Oct 17 03:24:29 ovm49 kernel: [<ffffffff8104a7b5>] change_page_attr_set_clr+0xe5/0x210
Oct 17 03:24:29 ovm49 kernel: [<ffffffff81141972>] ? insert_vmalloc_vmlist+0x22/0x70
Oct 17 03:24:29 ovm49 kernel: [<ffffffff8104ac0f>] _set_memory_uc+0x2f/0x40
Oct 17 03:24:29 ovm49 kernel: [<ffffffff810497ed>] ioremap_change_attr+0x1d/0x40
Oct 17 03:24:29 ovm49 kernel: [<ffffffff8104beef>] kernel_map_sync_memtype+0x7f/0x120
Oct 17 03:24:29 ovm49 kernel: [<ffffffff8104953e>] __ioremap_caller+0x20e/0x390
Oct 17 03:24:29 ovm49 kernel: [<ffffffff81049759>] ? xlate_dev_mem_ptr+0x59/0x70
Oct 17 03:24:29 ovm49 kernel: [<ffffffff810496f4>] ioremap_cache+0x14/0x20
Oct 17 03:24:29 ovm49 kernel: [<ffffffff81049759>] xlate_dev_mem_ptr+0x59/0x70
Oct 17 03:24:29 ovm49 kernel: [<ffffffff8133320b>] read_mem+0xdb/0x160
Oct 17 03:24:29 ovm49 kernel: [<ffffffff8116fa6b>] vfs_read+0xcb/0x180
Oct 17 03:24:29 ovm49 kernel: [<ffffffff8116ffc5>] sys_read+0x55/0x90
Oct 17 03:24:29 ovm49 kernel: [<ffffffff81510982>] system_call_fastpath+0x16/0x1b

 

 







Cause

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In this Document
Symptoms
Cause
Solution
References


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