[Xen-devel] FV-VM hangs after long time running.

[宋伟 <james.song@xxxxxxxxxxxxxx>]

Hi,

 

      I always met a FV-VM(redhat-5.4) hangs after about 48 or more hours run on xen4.0.0 + Pvops dom0 kernels 2.6.32, besides, some workload also run on dom0. Unfortunately I can only connect the VM with vnc and no reponse with console. From “vcpu-list” found that there are two vcpu with that VM but one have no state.  After rebooting the Vm, I got the message in Guest OS like:

 

Jul 22 18:43:31 sun-test9 kernel: BUG: soft lockup - CPU#0 stuck for 10s! [events/0:11]

Jul 22 18:43:31 sun-test9 kernel: CPU 0:

Jul 22 18:43:31 sun-test9 kernel: Modules linked in: nls_utf8 autofs4 hidp rfcomm l2cap bluetooth lockd sunrpc ip_conntrack_ftp ip_conntrack_netbios_ns ipt_REJECT xt_state ip_conntrack nfnetlink iptable_filter ip_tables ip6t_REJECT xt_tcpudp ip6table_filter ip6_tables x_tables dm_mirror dm_multipath scsi_dh video hwmon backlight sbs i2c_ec button battery asus_acpi acpi_memhotplug ac ipv6 xfrm_nalgo crypto_api parport_pc lp parport floppy joydev ide_cd cdrom i2c_piix4 pcspkr serio_raw i2c_core xen_vnif xen_balloon dm_raid45 dm_message dm_region_hash dm_log dm_mod dm_mem_cache ata_piix libata sd_mod scsi_mod ext3 jbd uhci_hcd ohci_hcd ehci_hcd xen_vbd xen_platform_pci

Jul 22 18:43:31 sun-test9 kernel: Pid: 11, comm: events/0 Not tainted 2.6.18-164.el5 #1

Jul 22 18:43:31 sun-test9 kernel: RIP: 0010:[<ffffffff80075c12>]  [<ffffffff80075c12>] __smp_call_function+0x6a/0x8b

Jul 22 18:43:31 sun-test9 kernel: RSP: 0018:ffff810037f49d90  EFLAGS: 00000297

Jul 22 18:43:31 sun-test9 kernel: RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000000

Jul 22 18:43:31 sun-test9 kernel: RDX: 00000000000000ff RSI: 00000000000000ff RDI: 00000000000000c0

Jul 22 18:43:31 sun-test9 kernel: RBP: 0000000000000000 R08: 0000000000000003 R09: 000000000000003d

Jul 22 18:43:31 sun-test9 kernel: R10: ffff810037f49cf0 R11: 0000000000000000 R12: 0000000000000000

Jul 22 18:43:31 sun-test9 kernel: R13: 0000000000000000 R14: 0000000000000006 R15: 0000000000000286

Jul 22 18:43:31 sun-test9 kernel: FS:  0000000000000000(0000) GS:ffffffff803c0000(0000) knlGS:0000000000000000

Jul 22 18:43:31 sun-test9 kernel: CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b

Jul 22 18:43:31 sun-test9 kernel: CR2: 00000000f7699430 CR3: 00000000275bf000 CR4: 00000000000006e0

Jul 22 18:43:31 sun-test9 kernel:

Jul 22 18:43:31 sun-test9 kernel: Call Trace:

Jul 22 18:43:31 sun-test9 kernel:  [<ffffffff80072404>] mcheck_check_cpu+0x0/0x2f

Jul 22 18:43:31 sun-test9 kernel:  [<ffffffff80075d40>] smp_call_function+0x32/0x47

Jul 22 18:43:31 sun-test9 kernel:  [<ffffffff80072404>] mcheck_check_cpu+0x0/0x2f

Jul 22 18:43:31 sun-test9 kernel:  [<ffffffff8009359a>] on_each_cpu+0x10/0x22

Jul 22 18:43:31 sun-test9 kernel:  [<ffffffff8007172f>] mcheck_timer+0x1c/0x6c

Jul 22 18:43:31 sun-test9 kernel:  [<ffffffff8004d80a>] run_workqueue+0x94/0xe4

Jul 22 18:43:31 sun-test9 kernel:  [<ffffffff8004a052>] worker_thread+0x0/0x122

Jul 22 18:43:31 sun-test9 kernel:  [<ffffffff8004a142>] worker_thread+0xf0/0x122

Jul 22 18:43:31 sun-test9 kernel:  [<ffffffff8008be71>] default_wake_function+0x0/0xe

Jul 22 18:43:31 sun-test9 kernel:  [<ffffffff8003298b>] kthread+0xfe/0x132

Jul 22 18:43:31 sun-test9 kernel:  [<ffffffff8005dfb1>] child_rip+0xa/0x11

Jul 22 18:43:31 sun-test9 kernel:  [<ffffffff8003288d>] kthread+0x0/0x132

Jul 22 18:43:31 sun-test9 kernel:  [<ffffffff8005dfa7>] child_rip+0x0/0x11

Jul 22 18:43:31 sun-test9 kernel:

 

Someone could give some hint what cause vm hang or how to get more information? Thanks in advance!

 

-James Song

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