* BUG: soft lockup - CPU stuck for ...
@ 2009-03-28 23:12 Robert Wimmer
2009-03-29 7:51 ` Gerrit Slomma
0 siblings, 1 reply; 6+ messages in thread
From: Robert Wimmer @ 2009-03-28 23:12 UTC (permalink / raw)
To: kvm
Hi,
does anyone know how to solve the problem
with "BUG: soft lockup - CPU#0 stuck for ..."?
Today I got the messages below during compilation
of the kernel modules in a guest. Using kvm84 and Kernel 2.6.29
as host kernel and 2.6.28 as guest kernel during the
hangup of the guest neither ssh or ping was possible.
After about 2 minutes the guest was reachable again
and I saw the messages below with "dmesg".
Maybe it is related with my prev. anserwed posting:
http://article.gmane.org/gmane.comp.emulators.kvm.devel/29677
Thanks!
Robert
BUG: soft lockup - CPU#0 stuck for 61s!
[cc1:17803]
Modules linked in: ipv6 floppy ppdev virtio_net pcspkr parport_pc
i2c_piix4 i2c_core parport thermal processor button e1000 nfs lockd
sunrpc jfs raid10 raid456 async_memcpy async_xor xor async_tx raid1
raid0 dm_bbr dm_snapshot dm_mirror dm_region_hash dm_log dm_mod sbp2
ohci1394 ieee1394 sl811_hcd usbhid ohci_hcd ssb uhci_hcd usb_storage
ehci_hcd usbcore lpfc qla2xxx megaraid_sas megaraid_mbox megaraid_mm
megaraid aacraid sx8 DAC960 cciss 3w_9xxx 3w_xxxx mptsas
scsi_transport_sas mptfc scsi_transport_fc scsi_tgt mptspi mptscsih
mptbase atp870u dc395x qla1280 dmx3191d sym53c8xx gdth advansys initio
BusLogic arcmsr aic7xxx aic79xx scsi_transport_spi sg videobuf_core
pdc_adma sata_inic162x sata_mv ata_piix ahci sata_qstor sata_vsc
sata_uli sata_sis sata_sx4 sata_nv sata_via sata_svw sata_sil24 sata_sil
sata_promise scsi_wait_scan pata_sl82c105 pata_cs5530 pata_cs5520
pata_via pata_jmicron pata_marvell pata_sis pata_netcell pata_sc1200
pata_pdc202xx_old pata_triflex pata_atiixp pata_opti pata_amd pata_ali
pata_it8213 pata_pcmcia pcmcia firmware_class pcmcia_core pata_ns87415
pata_ns87410 pata_serverworks pata_platform pata_artop pata_it821x
pata_optidma pata_hpt3x2n pata_hpt3x3 pata_hpt37x pata_hpt366
pata_cmd64x pata_efar pata_rz1000 pata_sil680 pata_radisys pata_pdc2027x
pata_mpiix
libata
CPU
0:
Modules linked in: ipv6 floppy ppdev virtio_net pcspkr parport_pc
i2c_piix4 i2c_core parport thermal processor button e1000 nfs lockd
sunrpc jfs raid10 raid456 async_memcpy async_xor xor async_tx raid1
raid0 dm_bbr dm_snapshot dm_mirror dm_region_hash dm_log dm_mod sbp2
ohci1394 ieee1394 sl811_hcd usbhid ohci_hcd ssb uhci_hcd usb_storage
ehci_hcd usbcore lpfc qla2xxx megaraid_sas megaraid_mbox megaraid_mm
megaraid aacraid sx8 DAC960 cciss 3w_9xxx 3w_xxxx mptsas
scsi_transport_sas mptfc scsi_transport_fc scsi_tgt mptspi mptscsih
mptbase atp870u dc395x qla1280 dmx3191d sym53c8xx gdth advansys initio
BusLogic arcmsr aic7xxx aic79xx scsi_transport_spi sg videobuf_core
pdc_adma sata_inic162x sata_mv ata_piix ahci sata_qstor sata_vsc
sata_uli sata_sis sata_sx4 sata_nv sata_via sata_svw sata_sil24 sata_sil
sata_promise scsi_wait_scan pata_sl82c105 pata_cs5530 pata_cs5520
pata_via pata_jmicron pata_marvell pata_sis pata_netcell pata_sc1200
pata_pdc202xx_old pata_triflex pata_atiixp pata_opti pata_amd pata_ali
pata_it8213 pata_pcmcia pcmcia firmware_class pcmcia_core pata_ns87415
pata_ns87410 pata_serverworks pata_platform pata_artop pata_it821x
pata_optidma pata_hpt3x2n pata_hpt3x3 pata_hpt37x pata_hpt366
pata_cmd64x pata_efar pata_rz1000 pata_sil680 pata_radisys pata_pdc2027x
pata_mpiix
libata
Pid: 17803, comm: cc1 Not tainted 2.6.28-gentoo-r2
#1
RIP: 0010:[<ffffffff80221b0b>] [<ffffffff80221b0b>]
0xffffffff80221b0b
RSP: 0000:ffff8800b8cb1d58 EFLAGS:
00000246
RAX: 0000000000000018 RBX: ffff8800b8cb1d78 RCX:
00000000b8cb1db8
RDX: 0000000000000000 RSI: 0000000000000018 RDI:
ffff8800b8cb1db8
RBP: ffff8800b8cb1d78 R08: ffffffff807040e8 R09:
000000000000c8e5
R10: ffff8800b8cb1e08 R11: 0000000000000002 R12:
000000000000001f
R13: 0000000000000000 R14: ffffffff802792e1 R15:
ffff8800b8cb1cf8
FS: 00002aee99c006f0(0000) GS:ffffffff807d5000(0000)
knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
CR2: 00002aee9b7e0000 CR3: 00000000a8510000 CR4:
00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
0000000000000400
Call
Trace:
[<ffffffff80221afe>] ?
0xffffffff80221afe
[<ffffffff80221c09>]
0xffffffff80221c09
[<ffffffff80221c9b>]
0xffffffff80221c9b
[<ffffffff8027cfce>] ?
0xffffffff8027cfce
[<ffffffff80221d31>]
0xffffffff80221d31
[<ffffffff8028538a>]
0xffffffff8028538a
[<ffffffff802228f5>] ?
0xffffffff802228f5
[<ffffffff802228f5>] ?
0xffffffff802228f5
[<ffffffff80226cd3>]
0xffffffff80226cd3
[<ffffffff805ca3ea>]
0xffffffff805ca3ea
BUG: soft lockup - CPU#0 stuck for 61s!
[cc1:17803]
Modules linked in: ipv6 floppy ppdev virtio_net pcspkr parport_pc
i2c_piix4 i2c_core parport thermal processor button e1000 nfs lockd
sunrpc jfs raid10 raid456 async_memcpy async_xor xor async_tx raid1
raid0 dm_bbr dm_snapshot dm_mirror dm_region_hash dm_log dm_mod sbp2
ohci1394 ieee1394 sl811_hcd usbhid ohci_hcd ssb uhci_hcd usb_storage
ehci_hcd usbcore lpfc qla2xxx megaraid_sas megaraid_mbox megaraid_mm
megaraid aacraid sx8 DAC960 cciss 3w_9xxx 3w_xxxx mptsas
scsi_transport_sas mptfc scsi_transport_fc scsi_tgt mptspi mptscsih
mptbase atp870u dc395x qla1280 dmx3191d sym53c8xx gdth advansys initio
BusLogic arcmsr aic7xxx aic79xx scsi_transport_spi sg videobuf_core
pdc_adma sata_inic162x sata_mv ata_piix ahci sata_qstor sata_vsc
sata_uli sata_sis sata_sx4 sata_nv sata_via sata_svw sata_sil24 sata_sil
sata_promise scsi_wait_scan pata_sl82c105 pata_cs5530 pata_cs5520
pata_via pata_jmicron pata_marvell pata_sis pata_netcell pata_sc1200
pata_pdc202xx_old pata_triflex pata_atiixp pata_opti pata_amd pata_ali
pata_it8213 pata_pcmcia pcmcia firmware_class pcmcia_core pata_ns87415
pata_ns87410 pata_serverworks pata_platform pata_artop pata_it821x
pata_optidma pata_hpt3x2n pata_hpt3x3 pata_hpt37x pata_hpt366
pata_cmd64x pata_efar pata_rz1000 pata_sil680 pata_radisys pata_pdc2027x
pata_mpiix
libata
CPU
0:
Modules linked in: ipv6 floppy ppdev virtio_net pcspkr parport_pc
i2c_piix4 i2c_core parport thermal processor button e1000 nfs lockd
sunrpc jfs raid10 raid456 async_memcpy async_xor xor async_tx raid1
raid0 dm_bbr dm_snapshot dm_mirror dm_region_hash dm_log dm_mod sbp2
ohci1394 ieee1394 sl811_hcd usbhid ohci_hcd ssb uhci_hcd usb_storage
ehci_hcd usbcore lpfc qla2xxx megaraid_sas megaraid_mbox megaraid_mm
megaraid aacraid sx8 DAC960 cciss 3w_9xxx 3w_xxxx mptsas
scsi_transport_sas mptfc scsi_transport_fc scsi_tgt mptspi mptscsih
mptbase atp870u dc395x qla1280 dmx3191d sym53c8xx gdth advansys initio
BusLogic arcmsr aic7xxx aic79xx scsi_transport_spi sg videobuf_core
pdc_adma sata_inic162x sata_mv ata_piix ahci sata_qstor sata_vsc
sata_uli sata_sis sata_sx4 sata_nv sata_via sata_svw sata_sil24 sata_sil
sata_promise scsi_wait_scan pata_sl82c105 pata_cs5530 pata_cs5520
pata_via pata_jmicron pata_marvell pata_sis pata_netcell pata_sc1200
pata_pdc202xx_old pata_triflex pata_atiixp pata_opti pata_amd pata_ali
pata_it8213 pata_pcmcia pcmcia firmware_class pcmcia_core pata_ns87415
pata_ns87410 pata_serverworks pata_platform pata_artop pata_it821x
pata_optidma pata_hpt3x2n pata_hpt3x3 pata_hpt37x pata_hpt366
pata_cmd64x pata_efar pata_rz1000 pata_sil680 pata_radisys pata_pdc2027x
pata_mpiix
libata
Pid: 17803, comm: cc1 Not tainted 2.6.28-gentoo-r2
#1
RIP: 0010:[<ffffffff80221b0b>] [<ffffffff80221b0b>]
0xffffffff80221b0b
RSP: 0000:ffff8800b8cb1d58 EFLAGS:
00000246
RAX: 0000000000000018 RBX: ffff8800b8cb1d78 RCX:
00000000b8cb1db8
RDX: 0000000000000000 RSI: 0000000000000018 RDI:
ffff8800b8cb1db8
RBP: ffff8800b8cb1d78 R08: ffffffff807040e8 R09:
000000000000c8e5
R10: ffff8800b8cb1e08 R11: 0000000000000002 R12:
000000000000001f
R13: 0000000000000000 R14: ffffffff802792e1 R15:
ffff8800b8cb1cf8
FS: 00002aee99c006f0(0000) GS:ffffffff807d5000(0000)
knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
CR2: 00002aee9b7e0000 CR3: 00000000a8510000 CR4:
00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
0000000000000400
Call
Trace:
[<ffffffff80221afe>] ?
0xffffffff80221afe
[<ffffffff80221c09>]
0xffffffff80221c09
[<ffffffff80221c9b>]
0xffffffff80221c9b
[<ffffffff8027cfce>] ?
0xffffffff8027cfce
[<ffffffff80221d31>]
0xffffffff80221d31
[<ffffffff8028538a>]
0xffffffff8028538a
[<ffffffff802228f5>] ?
0xffffffff802228f5
[<ffffffff802228f5>] ?
0xffffffff802228f5
[<ffffffff80226cd3>]
0xffffffff80226cd3
[<ffffffff805ca3ea>]
0xffffffff805ca3ea
BUG: soft lockup - CPU#0 stuck for 61s!
[cc1:17803]
Modules linked in: ipv6 floppy ppdev virtio_net pcspkr parport_pc
i2c_piix4 i2c_core parport thermal processor button e1000 nfs lockd
sunrpc jfs raid10 raid456 async_memcpy async_xor xor async_tx raid1
raid0 dm_bbr dm_snapshot dm_mirror dm_region_hash dm_log dm_mod sbp2
ohci1394 ieee1394 sl811_hcd usbhid ohci_hcd ssb uhci_hcd usb_storage
ehci_hcd usbcore lpfc qla2xxx megaraid_sas megaraid_mbox megaraid_mm
megaraid aacraid sx8 DAC960 cciss 3w_9xxx 3w_xxxx mptsas
scsi_transport_sas mptfc scsi_transport_fc scsi_tgt mptspi mptscsih
mptbase atp870u dc395x qla1280 dmx3191d sym53c8xx gdth advansys initio
BusLogic arcmsr aic7xxx aic79xx scsi_transport_spi sg videobuf_core
pdc_adma sata_inic162x sata_mv ata_piix ahci sata_qstor sata_vsc
sata_uli sata_sis sata_sx4 sata_nv sata_via sata_svw sata_sil24 sata_sil
sata_promise scsi_wait_scan pata_sl82c105 pata_cs5530 pata_cs5520
pata_via pata_jmicron pata_marvell pata_sis pata_netcell pata_sc1200
pata_pdc202xx_old pata_triflex pata_atiixp pata_opti pata_amd pata_ali
pata_it8213 pata_pcmcia pcmcia firmware_class pcmcia_core pata_ns87415
pata_ns87410 pata_serverworks pata_platform pata_artop pata_it821x
pata_optidma pata_hpt3x2n pata_hpt3x3 pata_hpt37x pata_hpt366
pata_cmd64x pata_efar pata_rz1000 pata_sil680 pata_radisys pata_pdc2027x
pata_mpiix
libata
CPU
0:
Modules linked in: ipv6 floppy ppdev virtio_net pcspkr parport_pc
i2c_piix4 i2c_core parport thermal processor button e1000 nfs lockd
sunrpc jfs raid10 raid456 async_memcpy async_xor xor async_tx raid1
raid0 dm_bbr dm_snapshot dm_mirror dm_region_hash dm_log dm_mod sbp2
ohci1394 ieee1394 sl811_hcd usbhid ohci_hcd ssb uhci_hcd usb_storage
ehci_hcd usbcore lpfc qla2xxx megaraid_sas megaraid_mbox megaraid_mm
megaraid aacraid sx8 DAC960 cciss 3w_9xxx 3w_xxxx mptsas
scsi_transport_sas mptfc scsi_transport_fc scsi_tgt mptspi mptscsih
mptbase atp870u dc395x qla1280 dmx3191d sym53c8xx gdth advansys initio
BusLogic arcmsr aic7xxx aic79xx scsi_transport_spi sg videobuf_core
pdc_adma sata_inic162x sata_mv ata_piix ahci sata_qstor sata_vsc
sata_uli sata_sis sata_sx4 sata_nv sata_via sata_svw sata_sil24 sata_sil
sata_promise scsi_wait_scan pata_sl82c105 pata_cs5530 pata_cs5520
pata_via pata_jmicron pata_marvell pata_sis pata_netcell pata_sc1200
pata_pdc202xx_old pata_triflex pata_atiixp pata_opti pata_amd pata_ali
pata_it8213 pata_pcmcia pcmcia firmware_class pcmcia_core pata_ns87415
pata_ns87410 pata_serverworks pata_platform pata_artop pata_it821x
pata_optidma pata_hpt3x2n pata_hpt3x3 pata_hpt37x pata_hpt366
pata_cmd64x pata_efar pata_rz1000 pata_sil680 pata_radisys pata_pdc2027x
pata_mpiix
libata
Pid: 17803, comm: cc1 Not tainted 2.6.28-gentoo-r2
#1
RIP: 0010:[<ffffffff80221b0b>] [<ffffffff80221b0b>]
0xffffffff80221b0b
RSP: 0000:ffff8800b8cb1d58 EFLAGS:
00000246
RAX: 0000000000000018 RBX: ffff8800b8cb1d78 RCX:
00000000b8cb1db8
RDX: 0000000000000000 RSI: 0000000000000018 RDI:
ffff8800b8cb1db8
RBP: ffff8800b8cb1d78 R08: ffffffff807040e8 R09:
000000000000c8e5
R10: ffff8800b8cb1e08 R11: 0000000000000002 R12:
000000000000001f
R13: 0000000000000000 R14: ffffffff802792e1 R15:
ffff8800b8cb1cf8
FS: 00002aee99c006f0(0000) GS:ffffffff807d5000(0000)
knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
CR2: 00002aee9b7e0000 CR3: 00000000a8510000 CR4:
00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
0000000000000400
Call
Trace:
[<ffffffff80221afe>] ?
0xffffffff80221afe
[<ffffffff80221c09>]
0xffffffff80221c09
[<ffffffff80221c9b>]
0xffffffff80221c9b
[<ffffffff8027cfce>] ?
0xffffffff8027cfce
[<ffffffff80221d31>]
0xffffffff80221d31
[<ffffffff8028538a>]
0xffffffff8028538a
[<ffffffff802228f5>] ?
0xffffffff802228f5
[<ffffffff802228f5>] ?
0xffffffff802228f5
[<ffffffff80226cd3>]
0xffffffff80226cd3
[<ffffffff805ca3ea>]
0xffffffff805ca3ea
BUG: soft lockup - CPU#0 stuck for 61s!
[cc1:17803]
Modules linked in: ipv6 floppy ppdev virtio_net pcspkr parport_pc
i2c_piix4 i2c_core parport thermal processor button e1000 nfs lockd
sunrpc jfs raid10 raid456 async_memcpy async_xor xor async_tx raid1
raid0 dm_bbr dm_snapshot dm_mirror dm_region_hash dm_log dm_mod sbp2
ohci1394 ieee1394 sl811_hcd usbhid ohci_hcd ssb uhci_hcd usb_storage
ehci_hcd usbcore lpfc qla2xxx megaraid_sas megaraid_mbox megaraid_mm
megaraid aacraid sx8 DAC960 cciss 3w_9xxx 3w_xxxx mptsas
scsi_transport_sas mptfc scsi_transport_fc scsi_tgt mptspi mptscsih
mptbase atp870u dc395x qla1280 dmx3191d sym53c8xx gdth advansys initio
BusLogic arcmsr aic7xxx aic79xx scsi_transport_spi sg videobuf_core
pdc_adma sata_inic162x sata_mv ata_piix ahci sata_qstor sata_vsc
sata_uli sata_sis sata_sx4 sata_nv sata_via sata_svw sata_sil24 sata_sil
sata_promise scsi_wait_scan pata_sl82c105 pata_cs5530 pata_cs5520
pata_via pata_jmicron pata_marvell pata_sis pata_netcell pata_sc1200
pata_pdc202xx_old pata_triflex pata_atiixp pata_opti pata_amd pata_ali
pata_it8213 pata_pcmcia pcmcia firmware_class pcmcia_core pata_ns87415
pata_ns87410 pata_serverworks pata_platform pata_artop pata_it821x
pata_optidma pata_hpt3x2n pata_hpt3x3 pata_hpt37x pata_hpt366
pata_cmd64x pata_efar pata_rz1000 pata_sil680 pata_radisys pata_pdc2027x
pata_mpiix
libata
CPU
0:
Modules linked in: ipv6 floppy ppdev virtio_net pcspkr parport_pc
i2c_piix4 i2c_core parport thermal processor button e1000 nfs lockd
sunrpc jfs raid10 raid456 async_memcpy async_xor xor async_tx raid1
raid0 dm_bbr dm_snapshot dm_mirror dm_region_hash dm_log dm_mod sbp2
ohci1394 ieee1394 sl811_hcd usbhid ohci_hcd ssb uhci_hcd usb_storage
ehci_hcd usbcore lpfc qla2xxx megaraid_sas megaraid_mbox megaraid_mm
megaraid aacraid sx8 DAC960 cciss 3w_9xxx 3w_xxxx mptsas
scsi_transport_sas mptfc scsi_transport_fc scsi_tgt mptspi mptscsih
mptbase atp870u dc395x qla1280 dmx3191d sym53c8xx gdth advansys initio
BusLogic arcmsr aic7xxx aic79xx scsi_transport_spi sg videobuf_core
pdc_adma sata_inic162x sata_mv ata_piix ahci sata_qstor sata_vsc
sata_uli sata_sis sata_sx4 sata_nv sata_via sata_svw sata_sil24 sata_sil
sata_promise scsi_wait_scan pata_sl82c105 pata_cs5530 pata_cs5520
pata_via pata_jmicron pata_marvell pata_sis pata_netcell pata_sc1200
pata_pdc202xx_old pata_triflex pata_atiixp pata_opti pata_amd pata_ali
pata_it8213 pata_pcmcia pcmcia firmware_class pcmcia_core pata_ns87415
pata_ns87410 pata_serverworks pata_platform pata_artop pata_it821x
pata_optidma pata_hpt3x2n pata_hpt3x3 pata_hpt37x pata_hpt366
pata_cmd64x pata_efar pata_rz1000 pata_sil680 pata_radisys pata_pdc2027x
pata_mpiix
libata
Pid: 17803, comm: cc1 Not tainted 2.6.28-gentoo-r2
#1
RIP: 0010:[<ffffffff80221b0b>] [<ffffffff80221b0b>]
0xffffffff80221b0b
RSP: 0000:ffff8800b8cb1d58 EFLAGS:
00000246
RAX: 0000000000000018 RBX: ffff8800b8cb1d78 RCX:
00000000b8cb1db8
RDX: 0000000000000000 RSI: 0000000000000018 RDI:
ffff8800b8cb1db8
RBP: ffff8800b8cb1d78 R08: ffffffff807040e8 R09:
000000000000c8e5
R10: ffff8800b8cb1e08 R11: 0000000000000002 R12:
000000000000001f
R13: 0000000000000000 R14: ffffffff802792e1 R15:
ffff8800b8cb1cf8
FS: 00002aee99c006f0(0000) GS:ffffffff807d5000(0000)
knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
CR2: 00002aee9b7e0000 CR3: 00000000a8510000 CR4:
00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
0000000000000400
Call
Trace:
[<ffffffff80221afe>] ?
0xffffffff80221afe
[<ffffffff80221c09>]
0xffffffff80221c09
[<ffffffff80221c9b>]
0xffffffff80221c9b
[<ffffffff8027cfce>] ?
0xffffffff8027cfce
[<ffffffff80221d31>]
0xffffffff80221d31
[<ffffffff8028538a>]
0xffffffff8028538a
[<ffffffff802228f5>] ?
0xffffffff802228f5
[<ffffffff802228f5>] ?
0xffffffff802228f5
[<ffffffff80226cd3>]
0xffffffff80226cd3
[<ffffffff805ca3ea>]
0xffffffff805ca3ea
BUG: soft lockup - CPU#0 stuck for 61s!
[cc1:17803]
Modules linked in: ipv6 floppy ppdev virtio_net pcspkr parport_pc
i2c_piix4 i2c_core parport thermal processor button e1000 nfs lockd
sunrpc jfs raid10 raid456 async_memcpy async_xor xor async_tx raid1
raid0 dm_bbr dm_snapshot dm_mirror dm_region_hash dm_log dm_mod sbp2
ohci1394 ieee1394 sl811_hcd usbhid ohci_hcd ssb uhci_hcd usb_storage
ehci_hcd usbcore lpfc qla2xxx megaraid_sas megaraid_mbox megaraid_mm
megaraid aacraid sx8 DAC960 cciss 3w_9xxx 3w_xxxx mptsas
scsi_transport_sas mptfc scsi_transport_fc scsi_tgt mptspi mptscsih
mptbase atp870u dc395x qla1280 dmx3191d sym53c8xx gdth advansys initio
BusLogic arcmsr aic7xxx aic79xx scsi_transport_spi sg videobuf_core
pdc_adma sata_inic162x sata_mv ata_piix ahci sata_qstor sata_vsc
sata_uli sata_sis sata_sx4 sata_nv sata_via sata_svw sata_sil24 sata_sil
sata_promise scsi_wait_scan pata_sl82c105 pata_cs5530 pata_cs5520
pata_via pata_jmicron pata_marvell pata_sis pata_netcell pata_sc1200
pata_pdc202xx_old pata_triflex pata_atiixp pata_opti pata_amd pata_ali
pata_it8213 pata_pcmcia pcmcia firmware_class pcmcia_core pata_ns87415
pata_ns87410 pata_serverworks pata_platform pata_artop pata_it821x
pata_optidma pata_hpt3x2n pata_hpt3x3 pata_hpt37x pata_hpt366
pata_cmd64x pata_efar pata_rz1000 pata_sil680 pata_radisys pata_pdc2027x
pata_mpiix
libata
CPU
0:
Modules linked in: ipv6 floppy ppdev virtio_net pcspkr parport_pc
i2c_piix4 i2c_core parport thermal processor button e1000 nfs lockd
sunrpc jfs raid10 raid456 async_memcpy async_xor xor async_tx raid1
raid0 dm_bbr dm_snapshot dm_mirror dm_region_hash dm_log dm_mod sbp2
ohci1394 ieee1394 sl811_hcd usbhid ohci_hcd ssb uhci_hcd usb_storage
ehci_hcd usbcore lpfc qla2xxx megaraid_sas megaraid_mbox megaraid_mm
megaraid aacraid sx8 DAC960 cciss 3w_9xxx 3w_xxxx mptsas
scsi_transport_sas mptfc scsi_transport_fc scsi_tgt mptspi mptscsih
mptbase atp870u dc395x qla1280 dmx3191d sym53c8xx gdth advansys initio
BusLogic arcmsr aic7xxx aic79xx scsi_transport_spi sg videobuf_core
pdc_adma sata_inic162x sata_mv ata_piix ahci sata_qstor sata_vsc
sata_uli sata_sis sata_sx4 sata_nv sata_via sata_svw sata_sil24 sata_sil
sata_promise scsi_wait_scan pata_sl82c105 pata_cs5530 pata_cs5520
pata_via pata_jmicron pata_marvell pata_sis pata_netcell pata_sc1200
pata_pdc202xx_old pata_triflex pata_atiixp pata_opti pata_amd pata_ali
pata_it8213 pata_pcmcia pcmcia firmware_class pcmcia_core pata_ns87415
pata_ns87410 pata_serverworks pata_platform pata_artop pata_it821x
pata_optidma pata_hpt3x2n pata_hpt3x3 pata_hpt37x pata_hpt366
pata_cmd64x pata_efar pata_rz1000 pata_sil680 pata_radisys pata_pdc2027x
pata_mpiix
libata
Pid: 17803, comm: cc1 Not tainted 2.6.28-gentoo-r2
#1
RIP: 0010:[<ffffffff80221b0b>] [<ffffffff80221b0b>]
0xffffffff80221b0b
RSP: 0000:ffff8800b8cb1d58 EFLAGS:
00000246
RAX: 0000000000000018 RBX: ffff8800b8cb1d78 RCX:
00000000b8cb1db8
RDX: 0000000000000000 RSI: 0000000000000018 RDI:
ffff8800b8cb1db8
RBP: ffff8800b8cb1d78 R08: ffffffff807040e8 R09:
000000000000c8e5
R10: ffff8800b8cb1e08 R11: 0000000000000002 R12:
000000000000001f
R13: 0000000000000000 R14: ffffffff802792e1 R15:
ffff8800b8cb1cf8
FS: 00002aee99c006f0(0000) GS:ffffffff807d5000(0000)
knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
CR2: 00002aee9b7e0000 CR3: 00000000a8510000 CR4:
00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
0000000000000400
Call
Trace:
[<ffffffff80221afe>] ?
0xffffffff80221afe
[<ffffffff80221c09>]
0xffffffff80221c09
[<ffffffff80221c9b>]
0xffffffff80221c9b
[<ffffffff8027cfce>] ?
0xffffffff8027cfce
[<ffffffff80221d31>]
0xffffffff80221d31
[<ffffffff8028538a>]
0xffffffff8028538a
[<ffffffff802228f5>] ?
0xffffffff802228f5
[<ffffffff802228f5>] ?
0xffffffff802228f5
[<ffffffff80226cd3>]
0xffffffff80226cd3
[<ffffffff805ca3ea>]
0xffffffff805ca3ea
BUG: soft lockup - CPU#0 stuck for 61s!
[cc1:17803]
Modules linked in: ipv6 floppy ppdev virtio_net pcspkr parport_pc
i2c_piix4 i2c_core parport thermal processor button e1000 nfs lockd
sunrpc jfs raid10 raid456 async_memcpy async_xor xor async_tx raid1
raid0 dm_bbr dm_snapshot dm_mirror dm_region_hash dm_log dm_mod sbp2
ohci1394 ieee1394 sl811_hcd usbhid ohci_hcd ssb uhci_hcd usb_storage
ehci_hcd usbcore lpfc qla2xxx megaraid_sas megaraid_mbox megaraid_mm
megaraid aacraid sx8 DAC960 cciss 3w_9xxx 3w_xxxx mptsas
scsi_transport_sas mptfc scsi_transport_fc scsi_tgt mptspi mptscsih
mptbase atp870u dc395x qla1280 dmx3191d sym53c8xx gdth advansys initio
BusLogic arcmsr aic7xxx aic79xx scsi_transport_spi sg videobuf_core
pdc_adma sata_inic162x sata_mv ata_piix ahci sata_qstor sata_vsc
sata_uli sata_sis sata_sx4 sata_nv sata_via sata_svw sata_sil24 sata_sil
sata_promise scsi_wait_scan pata_sl82c105 pata_cs5530 pata_cs5520
pata_via pata_jmicron pata_marvell pata_sis pata_netcell pata_sc1200
pata_pdc202xx_old pata_triflex pata_atiixp pata_opti pata_amd pata_ali
pata_it8213 pata_pcmcia pcmcia firmware_class pcmcia_core pata_ns87415
pata_ns87410 pata_serverworks pata_platform pata_artop pata_it821x
pata_optidma pata_hpt3x2n pata_hpt3x3 pata_hpt37x pata_hpt366
pata_cmd64x pata_efar pata_rz1000 pata_sil680 pata_radisys pata_pdc2027x
pata_mpiix
libata
CPU
0:
Modules linked in: ipv6 floppy ppdev virtio_net pcspkr parport_pc
i2c_piix4 i2c_core parport thermal processor button e1000 nfs lockd
sunrpc jfs raid10 raid456 async_memcpy async_xor xor async_tx raid1
raid0 dm_bbr dm_snapshot dm_mirror dm_region_hash dm_log dm_mod sbp2
ohci1394 ieee1394 sl811_hcd usbhid ohci_hcd ssb uhci_hcd usb_storage
ehci_hcd usbcore lpfc qla2xxx megaraid_sas megaraid_mbox megaraid_mm
megaraid aacraid sx8 DAC960 cciss 3w_9xxx 3w_xxxx mptsas
scsi_transport_sas mptfc scsi_transport_fc scsi_tgt mptspi mptscsih
mptbase atp870u dc395x qla1280 dmx3191d sym53c8xx gdth advansys initio
BusLogic arcmsr aic7xxx aic79xx scsi_transport_spi sg videobuf_core
pdc_adma sata_inic162x sata_mv ata_piix ahci sata_qstor sata_vsc
sata_uli sata_sis sata_sx4 sata_nv sata_via sata_svw sata_sil24 sata_sil
sata_promise scsi_wait_scan pata_sl82c105 pata_cs5530 pata_cs5520
pata_via pata_jmicron pata_marvell pata_sis pata_netcell pata_sc1200
pata_pdc202xx_old pata_triflex pata_atiixp pata_opti pata_amd pata_ali
pata_it8213 pata_pcmcia pcmcia firmware_class pcmcia_core pata_ns87415
pata_ns87410 pata_serverworks pata_platform pata_artop pata_it821x
pata_optidma pata_hpt3x2n pata_hpt3x3 pata_hpt37x pata_hpt366
pata_cmd64x pata_efar pata_rz1000 pata_sil680 pata_radisys pata_pdc2027x
pata_mpiix
libata
Pid: 17803, comm: cc1 Not tainted 2.6.28-gentoo-r2
#1
RIP: 0010:[<ffffffff80221b0b>] [<ffffffff80221b0b>]
0xffffffff80221b0b
RSP: 0000:ffff8800b8cb1d58 EFLAGS:
00000246
RAX: 0000000000000018 RBX: ffff8800b8cb1d78 RCX:
00000000b8cb1db8
RDX: 0000000000000000 RSI: 0000000000000018 RDI:
ffff8800b8cb1db8
RBP: ffff8800b8cb1d78 R08: ffffffff807040e8 R09:
000000000000c8e5
R10: ffff8800b8cb1e08 R11: 0000000000000002 R12:
000000000000001f
R13: 0000000000000000 R14: ffffffff802792e1 R15:
ffff8800b8cb1cf8
FS: 00002aee99c006f0(0000) GS:ffffffff807d5000(0000)
knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
CR2: 00002aee9b7e0000 CR3: 00000000a8510000 CR4:
00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
0000000000000400
Call
Trace:
[<ffffffff80221afe>] ?
0xffffffff80221afe
[<ffffffff80221c09>]
0xffffffff80221c09
[<ffffffff80221c9b>]
0xffffffff80221c9b
[<ffffffff8027cfce>] ?
0xffffffff8027cfce
[<ffffffff80221d31>]
0xffffffff80221d31
[<ffffffff8028538a>]
0xffffffff8028538a
[<ffffffff802228f5>] ?
0xffffffff802228f5
[<ffffffff802228f5>] ?
0xffffffff802228f5
[<ffffffff80226cd3>]
0xffffffff80226cd3
[<ffffffff805ca3ea>]
0xffffffff805ca3ea
BUG: soft lockup - CPU#0 stuck for 4115s!
[cc1:17803]
Modules linked in: ipv6 floppy ppdev virtio_net pcspkr parport_pc
i2c_piix4 i2c_core parport thermal processor button e1000 nfs lockd
sunrpc jfs raid10 raid456 async_memcpy async_xor xor async_tx raid1
raid0 dm_bbr dm_snapshot dm_mirror dm_region_hash dm_log dm_mod sbp2
ohci1394 ieee1394 sl811_hcd usbhid ohci_hcd ssb uhci_hcd usb_storage
ehci_hcd usbcore lpfc qla2xxx megaraid_sas megaraid_mbox megaraid_mm
megaraid aacraid sx8 DAC960 cciss 3w_9xxx 3w_xxxx mptsas
scsi_transport_sas mptfc scsi_transport_fc scsi_tgt mptspi mptscsih
mptbase atp870u dc395x qla1280 dmx3191d sym53c8xx gdth advansys initio
BusLogic arcmsr aic7xxx aic79xx scsi_transport_spi sg videobuf_core
pdc_adma sata_inic162x sata_mv ata_piix ahci sata_qstor sata_vsc
sata_uli sata_sis sata_sx4 sata_nv sata_via sata_svw sata_sil24 sata_sil
sata_promise scsi_wait_scan pata_sl82c105 pata_cs5530 pata_cs5520
pata_via pata_jmicron pata_marvell pata_sis pata_netcell pata_sc1200
pata_pdc202xx_old pata_triflex pata_atiixp pata_opti pata_amd pata_ali
pata_it8213 pata_pcmcia pcmcia firmware_class pcmcia_core pata_ns87415
pata_ns87410 pata_serverworks pata_platform pata_artop pata_it821x
pata_optidma pata_hpt3x2n pata_hpt3x3 pata_hpt37x pata_hpt366
pata_cmd64x pata_efar pata_rz1000 pata_sil680 pata_radisys pata_pdc2027x
pata_mpiix
libata
CPU
0:
Modules linked in: ipv6 floppy ppdev virtio_net pcspkr parport_pc
i2c_piix4 i2c_core parport thermal processor button e1000 nfs lockd
sunrpc jfs raid10 raid456 async_memcpy async_xor xor async_tx raid1
raid0 dm_bbr dm_snapshot dm_mirror dm_region_hash dm_log dm_mod sbp2
ohci1394 ieee1394 sl811_hcd usbhid ohci_hcd ssb uhci_hcd usb_storage
ehci_hcd usbcore lpfc qla2xxx megaraid_sas megaraid_mbox megaraid_mm
megaraid aacraid sx8 DAC960 cciss 3w_9xxx 3w_xxxx mptsas
scsi_transport_sas mptfc scsi_transport_fc scsi_tgt mptspi mptscsih
mptbase atp870u dc395x qla1280 dmx3191d sym53c8xx gdth advansys initio
BusLogic arcmsr aic7xxx aic79xx scsi_transport_spi sg videobuf_core
pdc_adma sata_inic162x sata_mv ata_piix ahci sata_qstor sata_vsc
sata_uli sata_sis sata_sx4 sata_nv sata_via sata_svw sata_sil24 sata_sil
sata_promise scsi_wait_scan pata_sl82c105 pata_cs5530 pata_cs5520
pata_via pata_jmicron pata_marvell pata_sis pata_netcell pata_sc1200
pata_pdc202xx_old pata_triflex pata_atiixp pata_opti pata_amd pata_ali
pata_it8213 pata_pcmcia pcmcia firmware_class pcmcia_core pata_ns87415
pata_ns87410 pata_serverworks pata_platform pata_artoppata_it821x
pata_optidma pata_hpt3x2n pata_hpt3x3 pata_hpt37x pata_hpt366
pata_cmd64x pata_efar pata_rz1000 pata_sil680 pata_radisys pata_pdc2027x
pata_mpiix libata
Pid: 17803, comm: cc1 Not tainted 2.6.28-gentoo-r2 #1
RIP: 0010:[<ffffffff80221b0b>] [<ffffffff80221b0b>] 0xffffffff80221b0b
RSP: 0000:ffff8800b8cb1d58 EFLAGS: 00000246
RAX: 0000000000000018 RBX: ffff8800b8cb1d78 RCX: 00000000b8cb1db8
RDX: 0000000000000000 RSI: 0000000000000018 RDI: ffff8800b8cb1db8
RBP: ffff8800b8cb1d78 R08: ffffffff807040e8 R09: 000000000000c8e5
R10: ffff8800b8cb1e08 R11: 0000000000000002 R12: 000000000000001f
R13: 0000000000000000 R14: ffffffff802792e1 R15: ffff8800b8cb1cf8
FS: 00002aee99c006f0(0000) GS:ffffffff807d5000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002aee9b7e0000 CR3: 00000000a8510000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
[<ffffffff80221afe>] ? 0xffffffff80221afe
[<ffffffff80221c09>] 0xffffffff80221c09
[<ffffffff80221c9b>] 0xffffffff80221c9b
[<ffffffff8027cfce>] ? 0xffffffff8027cfce
[<ffffffff80221d31>] 0xffffffff80221d31
[<ffffffff8028538a>] 0xffffffff8028538a
[<ffffffff802228f5>] ? 0xffffffff802228f5
[<ffffffff802228f5>] ? 0xffffffff802228f5
[<ffffffff80226cd3>] 0xffffffff80226cd3
[<ffffffff805ca3ea>] 0xffffffff805ca3ea
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: BUG: soft lockup - CPU stuck for ...
2009-03-28 23:12 Robert Wimmer
@ 2009-03-29 7:51 ` Gerrit Slomma
2009-03-29 17:36 ` Nikola Ciprich
0 siblings, 1 reply; 6+ messages in thread
From: Gerrit Slomma @ 2009-03-29 7:51 UTC (permalink / raw)
To: kvm
Robert Wimmer <r.wimmer <at> tomorrow-focus.de> writes:
>
> Hi,
>
> does anyone know how to solve the problem
> with "BUG: soft lockup - CPU#0 stuck for ..."?
> Today I got the messages below during compilation
> of the kernel modules in a guest. Using kvm84 and Kernel 2.6.29
> as host kernel and 2.6.28 as guest kernel during the
> hangup of the guest neither ssh or ping was possible.
> After about 2 minutes the guest was reachable again
> and I saw the messages below with "dmesg".
>
> Maybe it is related with my prev. anserwed posting:
> http://article.gmane.org/gmane.comp.emulators.kvm.devel/29677
>
> Thanks!
> Robert
>
> BUG: soft lockup - CPU#0 stuck for 61s!
> (...)
Hello
Do you use x86_64 or i686?
Look at my post here http://article.gmane.org/gmane.comp.emulators.kvm.devel/29833
And my Bug-report here https://bugzilla.redhat.com/show_bug.cgi?id=492688.
I do not have the problems while running but after migrating. Problems with
stuck CPUs vanish if i686 for the host is used - but i am testing further.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: BUG: soft lockup - CPU stuck for ...
2009-03-29 7:51 ` Gerrit Slomma
@ 2009-03-29 17:36 ` Nikola Ciprich
2009-03-30 18:50 ` Gerrit Slomma
0 siblings, 1 reply; 6+ messages in thread
From: Nikola Ciprich @ 2009-03-29 17:36 UTC (permalink / raw)
To: Gerrit Slomma; +Cc: kvm, nikola.ciprich
Hi,
I was also experiencing this problem a lot for quite a long time (and for
wide range of KVM versions..)
I might be completely wrong as I'm not sure if it was really the reason,
but i THINK it disappeared when I started to use fully preemptible kernel on host..
You might want to try it...
BR
nik
On Sun, Mar 29, 2009 at 07:51:21AM +0000, Gerrit Slomma wrote:
> Robert Wimmer <r.wimmer <at> tomorrow-focus.de> writes:
>
> >
> > Hi,
> >
> > does anyone know how to solve the problem
> > with "BUG: soft lockup - CPU#0 stuck for ..."?
> > Today I got the messages below during compilation
> > of the kernel modules in a guest. Using kvm84 and Kernel 2.6.29
> > as host kernel and 2.6.28 as guest kernel during the
> > hangup of the guest neither ssh or ping was possible.
> > After about 2 minutes the guest was reachable again
> > and I saw the messages below with "dmesg".
> >
> > Maybe it is related with my prev. anserwed posting:
> > http://article.gmane.org/gmane.comp.emulators.kvm.devel/29677
> >
> > Thanks!
> > Robert
> >
> > BUG: soft lockup - CPU#0 stuck for 61s!
> > (...)
>
> Hello
>
> Do you use x86_64 or i686?
> Look at my post here http://article.gmane.org/gmane.comp.emulators.kvm.devel/29833
> And my Bug-report here https://bugzilla.redhat.com/show_bug.cgi?id=492688.
> I do not have the problems while running but after migrating. Problems with
> stuck CPUs vanish if i686 for the host is used - but i am testing further.
>
> --
> To unsubscribe from this list: send the line "unsubscribe kvm" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
--
-------------------------------------
Nikola CIPRICH
LinuxBox.cz, s.r.o.
28. rijna 168, 709 01 Ostrava
tel.: +420 596 603 142
fax: +420 596 621 273
mobil: +420 777 093 799
www.linuxbox.cz
mobil servis: +420 737 238 656
email servis: servis@linuxbox.cz
-------------------------------------
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: BUG: soft lockup - CPU stuck for ...
@ 2009-03-30 11:37 Robert Wimmer
2009-03-30 15:55 ` Brian Jackson
0 siblings, 1 reply; 6+ messages in thread
From: Robert Wimmer @ 2009-03-30 11:37 UTC (permalink / raw)
To: kvm
Hi,
many thanks for your replys. I've upgraded
some systems to kernel 2.6.29 a few days ago.
There was especially one system which nearly always
crashed during kernel compilation. With 2.6.29
as host an guest it currently works. Have now
compiled the kernel three times (always from
scratch) and nothing crashed.
To use i686 (or x86) as host wouldn't be a option.
The preemtible kernel seems a possible way to go
if the crash happens again. But if it works now
I'll leave it as it is since there are still drivers
out there which have problems with preemt. kernels.
But there is something I still wonder: Is this the
right mailing list for such requests? If I read a
message like "BUG: soft lockup - CPU#0 stuck for ..."?
it looks for me like a bug which should be looked after
by the develpers but it seems that nobody here really
cares for such reports. I'm really a gratefull for
KVM and the work by done by all the developers but
isn't it in the interest of a company like Redhat to
get the product stable and to eliminate all known
bugs before the release of their new virtualisation
product? I really don't mean this as flame because
my intention is really to get KVM better. But the only
thing I can do is to submit bug reports since I'm not
a C/C++ developer.
Btw: Is there a overview what kernel settings
are recommended for KVM hosts and guests beside the
obvious ones? I've learned so far that the noop
I/O scheduler in the guest and deadline in the host
are good choices. I've read in the XFS filesystem FAQ
that the KVM "drive=" option should include "cache=none"
to avoid filesystem corruption (which I've already had
in some KVMs and caused me to switch to ext3 instead).
The kernel settings are especially usefull for people
like me who're using Gentoo where you have to compile
everything yourself.
Keep the good work going!
Thanks!
Robert
many than
> Hi,
> I was also experiencing this problem a lot for quite a long time (and for
> wide range of KVM versions..)
> I might be completely wrong as I'm not sure if it was really the reason,
> but i THINK it disappeared when I started to use fully preemptible kernel on host..
> You might want to try it...
> BR
> nik
On Sun, Mar 29, 2009 at 07:51:21AM +0000, Gerrit Slomma wrote:
> Robert Wimmer <r.wimmer <at> tomorrow-focus.de> writes:
>
> >
> > Hi,
> >
> > does anyone know how to solve the problem
> > with "BUG: soft lockup - CPU#0 stuck for ..."?
> > Today I got the messages below during compilation
> > of the kernel modules in a guest. Using kvm84 and Kernel 2.6.29
> > as host kernel and 2.6.28 as guest kernel during the
> > hangup of the guest neither ssh or ping was possible.
> > After about 2 minutes the guest was reachable again
> > and I saw the messages below with "dmesg".
> >
> > Maybe it is related with my prev. anserwed posting:
> > http://article.gmane.org/gmane.comp.emulators.kvm.devel/29677
> >
> > Thanks!
> > Robert
> >
> > BUG: soft lockup - CPU#0 stuck for 61s!
> > (...)
>
> Hello
>
> Do you use x86_64 or i686?
> Look at my post here http://article.gmane.org/gmane.comp.emulators.kvm.devel/29833
> And my Bug-report here https://bugzilla.redhat.com/show_bug.cgi?id=492688.
> I do not have the problems while running but after migrating. Problems with
> stuck CPUs vanish if i686 for the host is used - but i am testing further.
>
> --
> To unsubscribe from this list: send the line "unsubscribe kvm" in
> the body of a message to majordomo <at> vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
--
-------------------------------------
Nikola CIPRICH
LinuxBox.cz, s.r.o.
28. rijna 168, 709 01 Ostrava
tel.: +420 596 603 142
fax: +420 596 621 273
mobil: +420 777 093 799
www.linuxbox.cz <http://www.linuxbox.cz>
mobil servis: +420 737 238 656
email servis: servis <at> linuxbox.cz
-------------------------------------
--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to majordomo <at> vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: BUG: soft lockup - CPU stuck for ...
2009-03-30 11:37 BUG: soft lockup - CPU stuck for Robert Wimmer
@ 2009-03-30 15:55 ` Brian Jackson
0 siblings, 0 replies; 6+ messages in thread
From: Brian Jackson @ 2009-03-30 15:55 UTC (permalink / raw)
To: Robert Wimmer; +Cc: kvm
On Monday 30 March 2009 06:37:35 Robert Wimmer wrote:
> Hi,
>
> many thanks for your replys. I've upgraded
> some systems to kernel 2.6.29 a few days ago.
> There was especially one system which nearly always
> crashed during kernel compilation. With 2.6.29
> as host an guest it currently works. Have now
> compiled the kernel three times (always from
> scratch) and nothing crashed.
>
> To use i686 (or x86) as host wouldn't be a option.
>
> The preemtible kernel seems a possible way to go
> if the crash happens again. But if it works now
> I'll leave it as it is since there are still drivers
> out there which have problems with preemt. kernels.
>
> But there is something I still wonder: Is this the
> right mailing list for such requests? If I read a
> message like "BUG: soft lockup - CPU#0 stuck for ..."?
> it looks for me like a bug which should be looked after
> by the develpers but it seems that nobody here really
> cares for such reports. I'm really a gratefull for
> KVM and the work by done by all the developers but
> isn't it in the interest of a company like Redhat to
> get the product stable and to eliminate all known
> bugs before the release of their new virtualisation
> product? I really don't mean this as flame because
> my intention is really to get KVM better. But the only
> thing I can do is to submit bug reports since I'm not
> a C/C++ developer.
I think your problem is timing. All the devs seem to be really focused on
getting kvm merged into upstream qemu properly right now. Following the list
I've noticed that at least one of the devs seems to do a weekly review of the
list and tries to handle all the bugs he sees. I actually think filing bugs for
bugs is probably a better way to go because it's easier for the devs to keep
track of them there (rather than having to read through a ton of mailing list
messages, some of which don't even have to do with kvm). Moral of the story...
even though nobody replied to you (yet?) your reports and time spent finding
workarounds is appreciated.
>
> Btw: Is there a overview what kernel settings
> are recommended for KVM hosts and guests beside the
> obvious ones? I've learned so far that the noop
> I/O scheduler in the guest and deadline in the host
> are good choices. I've read in the XFS filesystem FAQ
> that the KVM "drive=" option should include "cache=none"
> to avoid filesystem corruption (which I've already had
> in some KVMs and caused me to switch to ext3 instead).
> The kernel settings are especially usefull for people
> like me who're using Gentoo where you have to compile
> everything yourself.
>
> Keep the good work going!
> Thanks!
> Robert
>
>
>
>
> many than
>
> > Hi,
> > I was also experiencing this problem a lot for quite a long time (and for
> > wide range of KVM versions..)
> > I might be completely wrong as I'm not sure if it was really the reason,
> > but i THINK it disappeared when I started to use fully preemptible kernel
> > on host.. You might want to try it...
> > BR
> > nik
>
> On Sun, Mar 29, 2009 at 07:51:21AM +0000, Gerrit Slomma wrote:
> > Robert Wimmer <r.wimmer <at> tomorrow-focus.de> writes:
> > > Hi,
> > >
> > > does anyone know how to solve the problem
> > > with "BUG: soft lockup - CPU#0 stuck for ..."?
> > > Today I got the messages below during compilation
> > > of the kernel modules in a guest. Using kvm84 and Kernel 2.6.29
> > > as host kernel and 2.6.28 as guest kernel during the
> > > hangup of the guest neither ssh or ping was possible.
> > > After about 2 minutes the guest was reachable again
> > > and I saw the messages below with "dmesg".
> > >
> > > Maybe it is related with my prev. anserwed posting:
> > > http://article.gmane.org/gmane.comp.emulators.kvm.devel/29677
> > >
> > > Thanks!
> > > Robert
> > >
> > > BUG: soft lockup - CPU#0 stuck for 61s!
> > > (...)
> >
> > Hello
> >
> > Do you use x86_64 or i686?
> > Look at my post here
> > http://article.gmane.org/gmane.comp.emulators.kvm.devel/29833 And my
> > Bug-report here https://bugzilla.redhat.com/show_bug.cgi?id=492688. I do
> > not have the problems while running but after migrating. Problems with
> > stuck CPUs vanish if i686 for the host is used - but i am testing
> > further.
> >
> > --
> > To unsubscribe from this list: send the line "unsubscribe kvm" in
> > the body of a message to majordomo <at> vger.kernel.org
> > More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: BUG: soft lockup - CPU stuck for ...
2009-03-29 17:36 ` Nikola Ciprich
@ 2009-03-30 18:50 ` Gerrit Slomma
0 siblings, 0 replies; 6+ messages in thread
From: Gerrit Slomma @ 2009-03-30 18:50 UTC (permalink / raw)
To: kvm
Nikola Ciprich <extmaillist <at> linuxbox.cz> writes:
>
> Hi,
> I was also experiencing this problem a lot for quite a long time (and for
> wide range of KVM versions..)
> I might be completely wrong as I'm not sure if it was really the reason,
> but i THINK it disappeared when I started to use fully preemptible kernel on
host..
> You might want to try it...
> BR
> nik
Alas i can't! I am on thin ice compiling libvirt, virt-manager and kvm on my own.
Company rules say i have to use upstream packages and there those that come from
the install-mediums. But if live-migration won't work i have to use VMWare.
Seems like i take the fallback of i686 - live-migration seems to work there -
and wait for RHEL 5.4 in fall. Then kvm is said to be the default virtualization
from Red Hat.
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2009-03-30 18:50 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2009-03-30 11:37 BUG: soft lockup - CPU stuck for Robert Wimmer
2009-03-30 15:55 ` Brian Jackson
-- strict thread matches above, loose matches on Subject: below --
2009-03-28 23:12 Robert Wimmer
2009-03-29 7:51 ` Gerrit Slomma
2009-03-29 17:36 ` Nikola Ciprich
2009-03-30 18:50 ` Gerrit Slomma
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