* [Qemu-devel] [Bug 1629618] [NEW] QEMU causes host hang / reset on PPC64EL
@ 2016-10-02 4:01 Timothy Pearson
2016-10-02 4:01 ` [Qemu-devel] [Bug 1629618] " Timothy Pearson
` (6 more replies)
0 siblings, 7 replies; 8+ messages in thread
From: Timothy Pearson @ 2016-10-02 4:01 UTC (permalink / raw)
To: qemu-devel
Public bug reported:
QEMU causes a host hang / reset on PPC64EL when used in KVM + HV mode
(kvm_hv module).
After a random amount of uptime, starting new QEMU virtual machines will
cause the host to experience a soft CPU lockup. Depending on
configuration and other random factors the host will either checkstop
and reboot, or hang indefinitely. The following stacktrace was pulled
from an instance where the host simply hung after starting a fourth
virtual machine.
Command line:
qemu-system-ppc64 --enable-kvm -M pseries -cpu host -smp
14,cores=14,threads=1,sockets=1 -m 64G -realtime mlock=on -kernel
vmlinux-4.7.0-1-powerpc64le -initrd initrd.img-4.7.0-1-powerpc64le
Lockup trace:
[ 527.393933] KVM guest htab at c000003ae4000000 (order 29), LPID 4
[ 574.637695] INFO: rcu_sched self-detected stall on CPU
[ 574.637799] 112-...: (5249 ticks this GP) idle=699/140000000000001/0 softirq=5358/5382 fqs=5072
[ 574.637877] (t=5250 jiffies g=19853 c=19852 q=64401)
[ 574.637947] Task dump for CPU 112:
[ 574.637982] qemu-system-ppc R running task 0 12037 11828 0x00040004
[ 574.638051] Call Trace:
[ 574.638081] [c000001c1cddb430] [c0000000000f2710] sched_show_task+0xe0/0x180 (unreliable)
[ 574.638164] [c000001c1cddb4a0] [c0000000001326f4] rcu_dump_cpu_stacks+0xe4/0x150
[ 574.638246] [c000001c1cddb4f0] [c000000000137a04] rcu_check_callbacks+0x6b4/0x9c0
[ 574.638328] [c000001c1cddb610] [c00000000013f7c4] update_process_times+0x54/0xa0
[ 574.638409] [c000001c1cddb640] [c000000000156c28] tick_sched_handle.isra.5+0x48/0xe0
[ 574.638489] [c000001c1cddb680] [c000000000156d24] tick_sched_timer+0x64/0xd0
[ 574.638602] [c000001c1cddb6c0] [c000000000140274] __hrtimer_run_queues+0x124/0x420
[ 574.638683] [c000001c1cddb750] [c00000000014123c] hrtimer_interrupt+0xec/0x2c0
[ 574.638765] [c000001c1cddb810] [c00000000001fe5c] __timer_interrupt+0x8c/0x270
[ 574.638847] [c000001c1cddb860] [c00000000002053c] timer_interrupt+0x9c/0xe0
[ 574.638915] [c000001c1cddb890] [c000000000002750] decrementer_common+0x150/0x180
[ 574.639001] --- interrupt: 901 at kvmppc_hv_get_dirty_log+0x1c4/0x570 [kvm_hv]
[ 574.639001] LR = kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv]
[ 574.639114] [c000001c1cddbc30] [d00000001a524980] kvm_vm_ioctl_get_dirty_log_hv+0xd0/0x170 [kvm_hv]
[ 574.639209] [c000001c1cddbc80] [d00000001a4d4140] kvm_vm_ioctl_get_dirty_log+0x40/0x60 [kvm]
[ 574.639291] [c000001c1cddbcb0] [d00000001a4ca3cc] kvm_vm_ioctl+0x3fc/0x760 [kvm]
[ 574.639372] [c000001c1cddbd40] [c0000000002d9e18] do_vfs_ioctl+0xd8/0x8e0
[ 574.639442] [c000001c1cddbde0] [c0000000002da6f4] SyS_ioctl+0xd4/0xf0
[ 574.639512] [c000001c1cddbe30] [c000000000009260] system_call+0x38/0x108
[ 580.601573] NMI watchdog: BUG: soft lockup - CPU#112 stuck for 22s! [qemu-system-ppc:12037]
[ 580.601655] Modules linked in: xt_tcpudp(E) rpcsec_gss_krb5(E) nfsv4(E) dns_resolver(E) ext4(E) ecb(E) crc16(E) jbd2(E) mbcache(E) tun(E) btrfs(E) crc32c_generic(E) raid6_pq(E) xor(E) dm_crypt(E) xts(E) gf128mul(E) algif_skcipher(E) af_alg(E) dm_mod(E) bonding(E) cpufreq_stats(E) iptable_filter(E) ip_tables(E) x_tables(E) bridge(E) stp(E) llc(E) ipmi_devintf(E) ipmi_msghandler(E) i2c_dev(E) fuse(E) raid1(E) md_mod(E) ses(E) sd_mod(E) enclosure(E) sg(E) binfmt_misc(E) radeon(E) ttm(E) drm_kms_helper(E) snd_hda_codec_hdmi(E) snd_hda_intel(E) drm(E) snd_hda_codec(E) snd_hda_core(E) snd_hwdep(E) snd_pcm(E) syscopyarea(E) sysfillrect(E) sysimgblt(E) fb_sys_fops(E) snd_timer(E) evdev(E) i2c_algo_bit(E) snd(E) soundcore(E) at24(E) ahci(E) mpt3sas(E) nvmem_core(E) libahci(E) raid_class(E) scsi_transport_sas(E) powernv_rng(E) rng_core(E) uinput(E) kvm_hv(E) kvm(E) ib_srp(E) scsi_transport_srp(E) ofpart(E) powernv_flash(E) mtd(E) nfsd(E) opal_prd(E) auth_rpcgss(E) parport_pc(E) lp(E) parport(E) autofs4(E) nfsv3(E) nfs_acl(E) nfs(E) lockd(E) grace(E) sunrpc(E) fscache(E) ib_ipoib(E) ib_umad(E) rdma_ucm(E) ib_uverbs(E) rdma_cm(E) iw_cm(E) ib_cm(E) ib_sa(E) configfs(E) hid_generic(E) usbhid(E) hid(E) xhci_pci(E) xhci_hcd(E) usbcore(E) tg3(E) usb_common(E) ptp(E) pps_core(E) libphy(E) ib_mthca(E) ib_mad(E) ib_core(E) ib_addr(E)
[ 580.603295] CPU: 112 PID: 12037 Comm: qemu-system-ppc Tainted: G E 4.6.0-2-powerpc64le #1 Debian 4.6.3-1
[ 580.603386] task: c000001f706f0180 ti: c000001c1cdd8000 task.ti: c000001c1cdd8000
[ 580.603456] NIP: d00000001a52cb54 LR: d00000001a52cb88 CTR: 0000000000000000
[ 580.603524] REGS: c000001c1cddb900 TRAP: 0901 Tainted: G E (4.6.0-2-powerpc64le Debian 4.6.3-1)
[ 580.603613] MSR: 9000000000009033 <SF,HV,EE,ME,IR,DR,RI,LE> CR: 24048444 XER: 00000000
[ 580.603784] CFAR: d00000001a52cb18 SOFTE: 1
GPR00: d00000001a52cb88 c000001c1cddbb80 d00000001a53c580 40016e77790fe611
GPR04: 0000000beceac194 00000000019a4544 0000000000000001 0000000000000000
GPR08: 4000000000000000 0000000000000000 0000000000000001 8000000101a9b824
GPR12: c00000000009aea0 c00000000fbbf000
[ 580.604205] NIP [d00000001a52cb54] kvmppc_hv_get_dirty_log+0x1c4/0x570 [kvm_hv]
[ 580.604274] LR [d00000001a52cb88] kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv]
[ 580.604341] Call Trace:
[ 580.604366] [c000001c1cddbb80] [d00000001a52cb88] kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv] (unreliable)
[ 580.604469] [c000001c1cddbc30] [d00000001a524980] kvm_vm_ioctl_get_dirty_log_hv+0xd0/0x170 [kvm_hv]
[ 580.604562] [c000001c1cddbc80] [d00000001a4d4140] kvm_vm_ioctl_get_dirty_log+0x40/0x60 [kvm]
[ 580.604685] [c000001c1cddbcb0] [d00000001a4ca3cc] kvm_vm_ioctl+0x3fc/0x760 [kvm]
[ 580.604765] [c000001c1cddbd40] [c0000000002d9e18] do_vfs_ioctl+0xd8/0x8e0
[ 580.604837] [c000001c1cddbde0] [c0000000002da6f4] SyS_ioctl+0xd4/0xf0
[ 580.604906] [c000001c1cddbe30] [c000000000009260] system_call+0x38/0x108
[ 580.604977] Instruction dump:
[ 580.605012] 2ba90003 419effc4 7fa97000 419effbc 81314310 2f890000 409effb0 7d00b0a8
[ 580.605127] 7d09a039 40820014 7d08a378 7d00b1ad <41e20008> 7e89a378 4c00012c 2fa90000
[ 637.648374] INFO: rcu_sched self-detected stall on CPU
[ 637.648473] 112-...: (21002 ticks this GP) idle=699/140000000000001/0 softirq=5358/5382 fqs=20825
[ 637.648554] (t=21003 jiffies g=19853 c=19852 q=260741)
[ 637.648612] Task dump for CPU 112:
[ 637.648646] qemu-system-ppc R running task 0 12037 11828 0x00040004
[ 637.648719] Call Trace:
[ 637.648745] [c000001c1cddb430] [c0000000000f2710] sched_show_task+0xe0/0x180 (unreliable)
[ 637.648825] [c000001c1cddb4a0] [c0000000001326f4] rcu_dump_cpu_stacks+0xe4/0x150
[ 637.648903] [c000001c1cddb4f0] [c000000000137a04] rcu_check_callbacks+0x6b4/0x9c0
[ 637.648985] [c000001c1cddb610] [c00000000013f7c4] update_process_times+0x54/0xa0
[ 637.649067] [c000001c1cddb640] [c000000000156c28] tick_sched_handle.isra.5+0x48/0xe0
[ 637.649147] [c000001c1cddb680] [c000000000156d24] tick_sched_timer+0x64/0xd0
[ 637.649216] [c000001c1cddb6c0] [c000000000140274] __hrtimer_run_queues+0x124/0x420
[ 637.649296] [c000001c1cddb750] [c00000000014123c] hrtimer_interrupt+0xec/0x2c0
[ 637.649374] [c000001c1cddb810] [c00000000001fe5c] __timer_interrupt+0x8c/0x270
[ 637.649456] [c000001c1cddb860] [c00000000002053c] timer_interrupt+0x9c/0xe0
[ 637.649525] [c000001c1cddb890] [c000000000002750] decrementer_common+0x150/0x180
[ 637.649645] --- interrupt: 901 at kvmppc_hv_get_dirty_log+0x1c4/0x570 [kvm_hv]
[ 637.649645] LR = kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv]
[ 637.649760] [c000001c1cddbc30] [d00000001a524980] kvm_vm_ioctl_get_dirty_log_hv+0xd0/0x170 [kvm_hv]
[ 637.649854] [c000001c1cddbc80] [d00000001a4d4140] kvm_vm_ioctl_get_dirty_log+0x40/0x60 [kvm]
[ 637.649936] [c000001c1cddbcb0] [d00000001a4ca3cc] kvm_vm_ioctl+0x3fc/0x760 [kvm]
[ 637.650014] [c000001c1cddbd40] [c0000000002d9e18] do_vfs_ioctl+0xd8/0x8e0
[ 637.650083] [c000001c1cddbde0] [c0000000002da6f4] SyS_ioctl+0xd4/0xf0
[ 637.650153] [c000001c1cddbe30] [c000000000009260] system_call+0x38/0x108
** Affects: qemu
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1629618
Title:
QEMU causes host hang / reset on PPC64EL
Status in QEMU:
New
Bug description:
QEMU causes a host hang / reset on PPC64EL when used in KVM + HV mode
(kvm_hv module).
After a random amount of uptime, starting new QEMU virtual machines
will cause the host to experience a soft CPU lockup. Depending on
configuration and other random factors the host will either checkstop
and reboot, or hang indefinitely. The following stacktrace was pulled
from an instance where the host simply hung after starting a fourth
virtual machine.
Command line:
qemu-system-ppc64 --enable-kvm -M pseries -cpu host -smp
14,cores=14,threads=1,sockets=1 -m 64G -realtime mlock=on -kernel
vmlinux-4.7.0-1-powerpc64le -initrd initrd.img-4.7.0-1-powerpc64le
Lockup trace:
[ 527.393933] KVM guest htab at c000003ae4000000 (order 29), LPID 4
[ 574.637695] INFO: rcu_sched self-detected stall on CPU
[ 574.637799] 112-...: (5249 ticks this GP) idle=699/140000000000001/0 softirq=5358/5382 fqs=5072
[ 574.637877] (t=5250 jiffies g=19853 c=19852 q=64401)
[ 574.637947] Task dump for CPU 112:
[ 574.637982] qemu-system-ppc R running task 0 12037 11828 0x00040004
[ 574.638051] Call Trace:
[ 574.638081] [c000001c1cddb430] [c0000000000f2710] sched_show_task+0xe0/0x180 (unreliable)
[ 574.638164] [c000001c1cddb4a0] [c0000000001326f4] rcu_dump_cpu_stacks+0xe4/0x150
[ 574.638246] [c000001c1cddb4f0] [c000000000137a04] rcu_check_callbacks+0x6b4/0x9c0
[ 574.638328] [c000001c1cddb610] [c00000000013f7c4] update_process_times+0x54/0xa0
[ 574.638409] [c000001c1cddb640] [c000000000156c28] tick_sched_handle.isra.5+0x48/0xe0
[ 574.638489] [c000001c1cddb680] [c000000000156d24] tick_sched_timer+0x64/0xd0
[ 574.638602] [c000001c1cddb6c0] [c000000000140274] __hrtimer_run_queues+0x124/0x420
[ 574.638683] [c000001c1cddb750] [c00000000014123c] hrtimer_interrupt+0xec/0x2c0
[ 574.638765] [c000001c1cddb810] [c00000000001fe5c] __timer_interrupt+0x8c/0x270
[ 574.638847] [c000001c1cddb860] [c00000000002053c] timer_interrupt+0x9c/0xe0
[ 574.638915] [c000001c1cddb890] [c000000000002750] decrementer_common+0x150/0x180
[ 574.639001] --- interrupt: 901 at kvmppc_hv_get_dirty_log+0x1c4/0x570 [kvm_hv]
[ 574.639001] LR = kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv]
[ 574.639114] [c000001c1cddbc30] [d00000001a524980] kvm_vm_ioctl_get_dirty_log_hv+0xd0/0x170 [kvm_hv]
[ 574.639209] [c000001c1cddbc80] [d00000001a4d4140] kvm_vm_ioctl_get_dirty_log+0x40/0x60 [kvm]
[ 574.639291] [c000001c1cddbcb0] [d00000001a4ca3cc] kvm_vm_ioctl+0x3fc/0x760 [kvm]
[ 574.639372] [c000001c1cddbd40] [c0000000002d9e18] do_vfs_ioctl+0xd8/0x8e0
[ 574.639442] [c000001c1cddbde0] [c0000000002da6f4] SyS_ioctl+0xd4/0xf0
[ 574.639512] [c000001c1cddbe30] [c000000000009260] system_call+0x38/0x108
[ 580.601573] NMI watchdog: BUG: soft lockup - CPU#112 stuck for 22s! [qemu-system-ppc:12037]
[ 580.601655] Modules linked in: xt_tcpudp(E) rpcsec_gss_krb5(E) nfsv4(E) dns_resolver(E) ext4(E) ecb(E) crc16(E) jbd2(E) mbcache(E) tun(E) btrfs(E) crc32c_generic(E) raid6_pq(E) xor(E) dm_crypt(E) xts(E) gf128mul(E) algif_skcipher(E) af_alg(E) dm_mod(E) bonding(E) cpufreq_stats(E) iptable_filter(E) ip_tables(E) x_tables(E) bridge(E) stp(E) llc(E) ipmi_devintf(E) ipmi_msghandler(E) i2c_dev(E) fuse(E) raid1(E) md_mod(E) ses(E) sd_mod(E) enclosure(E) sg(E) binfmt_misc(E) radeon(E) ttm(E) drm_kms_helper(E) snd_hda_codec_hdmi(E) snd_hda_intel(E) drm(E) snd_hda_codec(E) snd_hda_core(E) snd_hwdep(E) snd_pcm(E) syscopyarea(E) sysfillrect(E) sysimgblt(E) fb_sys_fops(E) snd_timer(E) evdev(E) i2c_algo_bit(E) snd(E) soundcore(E) at24(E) ahci(E) mpt3sas(E) nvmem_core(E) libahci(E) raid_class(E) scsi_transport_sas(E) powernv_rng(E) rng_core(E) uinput(E) kvm_hv(E) kvm(E) ib_srp(E) scsi_transport_srp(E) ofpart(E) powernv_flash(E) mtd(E) nfsd(E) opal_prd(E) auth_rpcgss(E) parport_pc(E) lp(E) parport(E) autofs4(E) nfsv3(E) nfs_acl(E) nfs(E) lockd(E) grace(E) sunrpc(E) fscache(E) ib_ipoib(E) ib_umad(E) rdma_ucm(E) ib_uverbs(E) rdma_cm(E) iw_cm(E) ib_cm(E) ib_sa(E) configfs(E) hid_generic(E) usbhid(E) hid(E) xhci_pci(E) xhci_hcd(E) usbcore(E) tg3(E) usb_common(E) ptp(E) pps_core(E) libphy(E) ib_mthca(E) ib_mad(E) ib_core(E) ib_addr(E)
[ 580.603295] CPU: 112 PID: 12037 Comm: qemu-system-ppc Tainted: G E 4.6.0-2-powerpc64le #1 Debian 4.6.3-1
[ 580.603386] task: c000001f706f0180 ti: c000001c1cdd8000 task.ti: c000001c1cdd8000
[ 580.603456] NIP: d00000001a52cb54 LR: d00000001a52cb88 CTR: 0000000000000000
[ 580.603524] REGS: c000001c1cddb900 TRAP: 0901 Tainted: G E (4.6.0-2-powerpc64le Debian 4.6.3-1)
[ 580.603613] MSR: 9000000000009033 <SF,HV,EE,ME,IR,DR,RI,LE> CR: 24048444 XER: 00000000
[ 580.603784] CFAR: d00000001a52cb18 SOFTE: 1
GPR00: d00000001a52cb88 c000001c1cddbb80 d00000001a53c580 40016e77790fe611
GPR04: 0000000beceac194 00000000019a4544 0000000000000001 0000000000000000
GPR08: 4000000000000000 0000000000000000 0000000000000001 8000000101a9b824
GPR12: c00000000009aea0 c00000000fbbf000
[ 580.604205] NIP [d00000001a52cb54] kvmppc_hv_get_dirty_log+0x1c4/0x570 [kvm_hv]
[ 580.604274] LR [d00000001a52cb88] kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv]
[ 580.604341] Call Trace:
[ 580.604366] [c000001c1cddbb80] [d00000001a52cb88] kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv] (unreliable)
[ 580.604469] [c000001c1cddbc30] [d00000001a524980] kvm_vm_ioctl_get_dirty_log_hv+0xd0/0x170 [kvm_hv]
[ 580.604562] [c000001c1cddbc80] [d00000001a4d4140] kvm_vm_ioctl_get_dirty_log+0x40/0x60 [kvm]
[ 580.604685] [c000001c1cddbcb0] [d00000001a4ca3cc] kvm_vm_ioctl+0x3fc/0x760 [kvm]
[ 580.604765] [c000001c1cddbd40] [c0000000002d9e18] do_vfs_ioctl+0xd8/0x8e0
[ 580.604837] [c000001c1cddbde0] [c0000000002da6f4] SyS_ioctl+0xd4/0xf0
[ 580.604906] [c000001c1cddbe30] [c000000000009260] system_call+0x38/0x108
[ 580.604977] Instruction dump:
[ 580.605012] 2ba90003 419effc4 7fa97000 419effbc 81314310 2f890000 409effb0 7d00b0a8
[ 580.605127] 7d09a039 40820014 7d08a378 7d00b1ad <41e20008> 7e89a378 4c00012c 2fa90000
[ 637.648374] INFO: rcu_sched self-detected stall on CPU
[ 637.648473] 112-...: (21002 ticks this GP) idle=699/140000000000001/0 softirq=5358/5382 fqs=20825
[ 637.648554] (t=21003 jiffies g=19853 c=19852 q=260741)
[ 637.648612] Task dump for CPU 112:
[ 637.648646] qemu-system-ppc R running task 0 12037 11828 0x00040004
[ 637.648719] Call Trace:
[ 637.648745] [c000001c1cddb430] [c0000000000f2710] sched_show_task+0xe0/0x180 (unreliable)
[ 637.648825] [c000001c1cddb4a0] [c0000000001326f4] rcu_dump_cpu_stacks+0xe4/0x150
[ 637.648903] [c000001c1cddb4f0] [c000000000137a04] rcu_check_callbacks+0x6b4/0x9c0
[ 637.648985] [c000001c1cddb610] [c00000000013f7c4] update_process_times+0x54/0xa0
[ 637.649067] [c000001c1cddb640] [c000000000156c28] tick_sched_handle.isra.5+0x48/0xe0
[ 637.649147] [c000001c1cddb680] [c000000000156d24] tick_sched_timer+0x64/0xd0
[ 637.649216] [c000001c1cddb6c0] [c000000000140274] __hrtimer_run_queues+0x124/0x420
[ 637.649296] [c000001c1cddb750] [c00000000014123c] hrtimer_interrupt+0xec/0x2c0
[ 637.649374] [c000001c1cddb810] [c00000000001fe5c] __timer_interrupt+0x8c/0x270
[ 637.649456] [c000001c1cddb860] [c00000000002053c] timer_interrupt+0x9c/0xe0
[ 637.649525] [c000001c1cddb890] [c000000000002750] decrementer_common+0x150/0x180
[ 637.649645] --- interrupt: 901 at kvmppc_hv_get_dirty_log+0x1c4/0x570 [kvm_hv]
[ 637.649645] LR = kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv]
[ 637.649760] [c000001c1cddbc30] [d00000001a524980] kvm_vm_ioctl_get_dirty_log_hv+0xd0/0x170 [kvm_hv]
[ 637.649854] [c000001c1cddbc80] [d00000001a4d4140] kvm_vm_ioctl_get_dirty_log+0x40/0x60 [kvm]
[ 637.649936] [c000001c1cddbcb0] [d00000001a4ca3cc] kvm_vm_ioctl+0x3fc/0x760 [kvm]
[ 637.650014] [c000001c1cddbd40] [c0000000002d9e18] do_vfs_ioctl+0xd8/0x8e0
[ 637.650083] [c000001c1cddbde0] [c0000000002da6f4] SyS_ioctl+0xd4/0xf0
[ 637.650153] [c000001c1cddbe30] [c000000000009260] system_call+0x38/0x108
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* [Qemu-devel] [Bug 1629618] Re: QEMU causes host hang / reset on PPC64EL
2016-10-02 4:01 [Qemu-devel] [Bug 1629618] [NEW] QEMU causes host hang / reset on PPC64EL Timothy Pearson
@ 2016-10-02 4:01 ` Timothy Pearson
2016-10-04 9:35 ` T. Huth
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: Timothy Pearson @ 2016-10-02 4:01 UTC (permalink / raw)
To: qemu-devel
Host QEMU version: 1:2.6+dfsg-3.1
Host kernel version: 4.6.0
** Description changed:
QEMU causes a host hang / reset on PPC64EL when used in KVM + HV mode
(kvm_hv module).
After a random amount of uptime, starting new QEMU virtual machines will
cause the host to experience a soft CPU lockup. Depending on
configuration and other random factors the host will either checkstop
and reboot, or hang indefinitely. The following stacktrace was pulled
from an instance where the host simply hung after starting a fourth
virtual machine.
Command line:
- qemu-system-ppc64 --enable-kvm -name pbuild-vnode001 -M pseries -cpu
- host -smp 14,cores=14,threads=1,sockets=1 -m 64G -realtime mlock=on
- -kernel vmlinux-4.7.0-1-powerpc64le -initrd
- initrd.img-4.7.0-1-powerpc64le
+ qemu-system-ppc64 --enable-kvm -M pseries -cpu host -smp
+ 14,cores=14,threads=1,sockets=1 -m 64G -realtime mlock=on -kernel
+ vmlinux-4.7.0-1-powerpc64le -initrd initrd.img-4.7.0-1-powerpc64le
Lockup trace:
[ 527.393933] KVM guest htab at c000003ae4000000 (order 29), LPID 4
[ 574.637695] INFO: rcu_sched self-detected stall on CPU
- [ 574.637799] 112-...: (5249 ticks this GP) idle=699/140000000000001/0 softirq=5358/5382 fqs=5072
+ [ 574.637799] 112-...: (5249 ticks this GP) idle=699/140000000000001/0 softirq=5358/5382 fqs=5072
[ 574.637877] (t=5250 jiffies g=19853 c=19852 q=64401)
[ 574.637947] Task dump for CPU 112:
[ 574.637982] qemu-system-ppc R running task 0 12037 11828 0x00040004
[ 574.638051] Call Trace:
[ 574.638081] [c000001c1cddb430] [c0000000000f2710] sched_show_task+0xe0/0x180 (unreliable)
[ 574.638164] [c000001c1cddb4a0] [c0000000001326f4] rcu_dump_cpu_stacks+0xe4/0x150
[ 574.638246] [c000001c1cddb4f0] [c000000000137a04] rcu_check_callbacks+0x6b4/0x9c0
[ 574.638328] [c000001c1cddb610] [c00000000013f7c4] update_process_times+0x54/0xa0
[ 574.638409] [c000001c1cddb640] [c000000000156c28] tick_sched_handle.isra.5+0x48/0xe0
[ 574.638489] [c000001c1cddb680] [c000000000156d24] tick_sched_timer+0x64/0xd0
[ 574.638602] [c000001c1cddb6c0] [c000000000140274] __hrtimer_run_queues+0x124/0x420
[ 574.638683] [c000001c1cddb750] [c00000000014123c] hrtimer_interrupt+0xec/0x2c0
[ 574.638765] [c000001c1cddb810] [c00000000001fe5c] __timer_interrupt+0x8c/0x270
[ 574.638847] [c000001c1cddb860] [c00000000002053c] timer_interrupt+0x9c/0xe0
[ 574.638915] [c000001c1cddb890] [c000000000002750] decrementer_common+0x150/0x180
[ 574.639001] --- interrupt: 901 at kvmppc_hv_get_dirty_log+0x1c4/0x570 [kvm_hv]
[ 574.639001] LR = kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv]
[ 574.639114] [c000001c1cddbc30] [d00000001a524980] kvm_vm_ioctl_get_dirty_log_hv+0xd0/0x170 [kvm_hv]
[ 574.639209] [c000001c1cddbc80] [d00000001a4d4140] kvm_vm_ioctl_get_dirty_log+0x40/0x60 [kvm]
[ 574.639291] [c000001c1cddbcb0] [d00000001a4ca3cc] kvm_vm_ioctl+0x3fc/0x760 [kvm]
[ 574.639372] [c000001c1cddbd40] [c0000000002d9e18] do_vfs_ioctl+0xd8/0x8e0
[ 574.639442] [c000001c1cddbde0] [c0000000002da6f4] SyS_ioctl+0xd4/0xf0
[ 574.639512] [c000001c1cddbe30] [c000000000009260] system_call+0x38/0x108
[ 580.601573] NMI watchdog: BUG: soft lockup - CPU#112 stuck for 22s! [qemu-system-ppc:12037]
[ 580.601655] Modules linked in: xt_tcpudp(E) rpcsec_gss_krb5(E) nfsv4(E) dns_resolver(E) ext4(E) ecb(E) crc16(E) jbd2(E) mbcache(E) tun(E) btrfs(E) crc32c_generic(E) raid6_pq(E) xor(E) dm_crypt(E) xts(E) gf128mul(E) algif_skcipher(E) af_alg(E) dm_mod(E) bonding(E) cpufreq_stats(E) iptable_filter(E) ip_tables(E) x_tables(E) bridge(E) stp(E) llc(E) ipmi_devintf(E) ipmi_msghandler(E) i2c_dev(E) fuse(E) raid1(E) md_mod(E) ses(E) sd_mod(E) enclosure(E) sg(E) binfmt_misc(E) radeon(E) ttm(E) drm_kms_helper(E) snd_hda_codec_hdmi(E) snd_hda_intel(E) drm(E) snd_hda_codec(E) snd_hda_core(E) snd_hwdep(E) snd_pcm(E) syscopyarea(E) sysfillrect(E) sysimgblt(E) fb_sys_fops(E) snd_timer(E) evdev(E) i2c_algo_bit(E) snd(E) soundcore(E) at24(E) ahci(E) mpt3sas(E) nvmem_core(E) libahci(E) raid_class(E) scsi_transport_sas(E) powernv_rng(E) rng_core(E) uinput(E) kvm_hv(E) kvm(E) ib_srp(E) scsi_transport_srp(E) ofpart(E) powernv_flash(E) mtd(E) nfsd(E) opal_prd(E) auth_rpcgss(E) parport_pc(E) lp(E) parport(E) autofs4(E) nfsv3(E) nfs_acl(E) nfs(E) lockd(E) grace(E) sunrpc(E) fscache(E) ib_ipoib(E) ib_umad(E) rdma_ucm(E) ib_uverbs(E) rdma_cm(E) iw_cm(E) ib_cm(E) ib_sa(E) configfs(E) hid_generic(E) usbhid(E) hid(E) xhci_pci(E) xhci_hcd(E) usbcore(E) tg3(E) usb_common(E) ptp(E) pps_core(E) libphy(E) ib_mthca(E) ib_mad(E) ib_core(E) ib_addr(E)
[ 580.603295] CPU: 112 PID: 12037 Comm: qemu-system-ppc Tainted: G E 4.6.0-2-powerpc64le #1 Debian 4.6.3-1
[ 580.603386] task: c000001f706f0180 ti: c000001c1cdd8000 task.ti: c000001c1cdd8000
[ 580.603456] NIP: d00000001a52cb54 LR: d00000001a52cb88 CTR: 0000000000000000
[ 580.603524] REGS: c000001c1cddb900 TRAP: 0901 Tainted: G E (4.6.0-2-powerpc64le Debian 4.6.3-1)
[ 580.603613] MSR: 9000000000009033 <SF,HV,EE,ME,IR,DR,RI,LE> CR: 24048444 XER: 00000000
- [ 580.603784] CFAR: d00000001a52cb18 SOFTE: 1
- GPR00: d00000001a52cb88 c000001c1cddbb80 d00000001a53c580 40016e77790fe611
- GPR04: 0000000beceac194 00000000019a4544 0000000000000001 0000000000000000
- GPR08: 4000000000000000 0000000000000000 0000000000000001 8000000101a9b824
- GPR12: c00000000009aea0 c00000000fbbf000
+ [ 580.603784] CFAR: d00000001a52cb18 SOFTE: 1
+ GPR00: d00000001a52cb88 c000001c1cddbb80 d00000001a53c580 40016e77790fe611
+ GPR04: 0000000beceac194 00000000019a4544 0000000000000001 0000000000000000
+ GPR08: 4000000000000000 0000000000000000 0000000000000001 8000000101a9b824
+ GPR12: c00000000009aea0 c00000000fbbf000
[ 580.604205] NIP [d00000001a52cb54] kvmppc_hv_get_dirty_log+0x1c4/0x570 [kvm_hv]
[ 580.604274] LR [d00000001a52cb88] kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv]
[ 580.604341] Call Trace:
[ 580.604366] [c000001c1cddbb80] [d00000001a52cb88] kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv] (unreliable)
[ 580.604469] [c000001c1cddbc30] [d00000001a524980] kvm_vm_ioctl_get_dirty_log_hv+0xd0/0x170 [kvm_hv]
[ 580.604562] [c000001c1cddbc80] [d00000001a4d4140] kvm_vm_ioctl_get_dirty_log+0x40/0x60 [kvm]
[ 580.604685] [c000001c1cddbcb0] [d00000001a4ca3cc] kvm_vm_ioctl+0x3fc/0x760 [kvm]
[ 580.604765] [c000001c1cddbd40] [c0000000002d9e18] do_vfs_ioctl+0xd8/0x8e0
[ 580.604837] [c000001c1cddbde0] [c0000000002da6f4] SyS_ioctl+0xd4/0xf0
[ 580.604906] [c000001c1cddbe30] [c000000000009260] system_call+0x38/0x108
[ 580.604977] Instruction dump:
- [ 580.605012] 2ba90003 419effc4 7fa97000 419effbc 81314310 2f890000 409effb0 7d00b0a8
- [ 580.605127] 7d09a039 40820014 7d08a378 7d00b1ad <41e20008> 7e89a378 4c00012c 2fa90000
+ [ 580.605012] 2ba90003 419effc4 7fa97000 419effbc 81314310 2f890000 409effb0 7d00b0a8
+ [ 580.605127] 7d09a039 40820014 7d08a378 7d00b1ad <41e20008> 7e89a378 4c00012c 2fa90000
[ 637.648374] INFO: rcu_sched self-detected stall on CPU
- [ 637.648473] 112-...: (21002 ticks this GP) idle=699/140000000000001/0 softirq=5358/5382 fqs=20825
+ [ 637.648473] 112-...: (21002 ticks this GP) idle=699/140000000000001/0 softirq=5358/5382 fqs=20825
[ 637.648554] (t=21003 jiffies g=19853 c=19852 q=260741)
[ 637.648612] Task dump for CPU 112:
[ 637.648646] qemu-system-ppc R running task 0 12037 11828 0x00040004
[ 637.648719] Call Trace:
[ 637.648745] [c000001c1cddb430] [c0000000000f2710] sched_show_task+0xe0/0x180 (unreliable)
[ 637.648825] [c000001c1cddb4a0] [c0000000001326f4] rcu_dump_cpu_stacks+0xe4/0x150
[ 637.648903] [c000001c1cddb4f0] [c000000000137a04] rcu_check_callbacks+0x6b4/0x9c0
[ 637.648985] [c000001c1cddb610] [c00000000013f7c4] update_process_times+0x54/0xa0
[ 637.649067] [c000001c1cddb640] [c000000000156c28] tick_sched_handle.isra.5+0x48/0xe0
[ 637.649147] [c000001c1cddb680] [c000000000156d24] tick_sched_timer+0x64/0xd0
[ 637.649216] [c000001c1cddb6c0] [c000000000140274] __hrtimer_run_queues+0x124/0x420
[ 637.649296] [c000001c1cddb750] [c00000000014123c] hrtimer_interrupt+0xec/0x2c0
[ 637.649374] [c000001c1cddb810] [c00000000001fe5c] __timer_interrupt+0x8c/0x270
[ 637.649456] [c000001c1cddb860] [c00000000002053c] timer_interrupt+0x9c/0xe0
[ 637.649525] [c000001c1cddb890] [c000000000002750] decrementer_common+0x150/0x180
[ 637.649645] --- interrupt: 901 at kvmppc_hv_get_dirty_log+0x1c4/0x570 [kvm_hv]
[ 637.649645] LR = kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv]
[ 637.649760] [c000001c1cddbc30] [d00000001a524980] kvm_vm_ioctl_get_dirty_log_hv+0xd0/0x170 [kvm_hv]
[ 637.649854] [c000001c1cddbc80] [d00000001a4d4140] kvm_vm_ioctl_get_dirty_log+0x40/0x60 [kvm]
[ 637.649936] [c000001c1cddbcb0] [d00000001a4ca3cc] kvm_vm_ioctl+0x3fc/0x760 [kvm]
[ 637.650014] [c000001c1cddbd40] [c0000000002d9e18] do_vfs_ioctl+0xd8/0x8e0
[ 637.650083] [c000001c1cddbde0] [c0000000002da6f4] SyS_ioctl+0xd4/0xf0
[ 637.650153] [c000001c1cddbe30] [c000000000009260] system_call+0x38/0x108
--
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https://bugs.launchpad.net/bugs/1629618
Title:
QEMU causes host hang / reset on PPC64EL
Status in QEMU:
New
Bug description:
QEMU causes a host hang / reset on PPC64EL when used in KVM + HV mode
(kvm_hv module).
After a random amount of uptime, starting new QEMU virtual machines
will cause the host to experience a soft CPU lockup. Depending on
configuration and other random factors the host will either checkstop
and reboot, or hang indefinitely. The following stacktrace was pulled
from an instance where the host simply hung after starting a fourth
virtual machine.
Command line:
qemu-system-ppc64 --enable-kvm -M pseries -cpu host -smp
14,cores=14,threads=1,sockets=1 -m 64G -realtime mlock=on -kernel
vmlinux-4.7.0-1-powerpc64le -initrd initrd.img-4.7.0-1-powerpc64le
Lockup trace:
[ 527.393933] KVM guest htab at c000003ae4000000 (order 29), LPID 4
[ 574.637695] INFO: rcu_sched self-detected stall on CPU
[ 574.637799] 112-...: (5249 ticks this GP) idle=699/140000000000001/0 softirq=5358/5382 fqs=5072
[ 574.637877] (t=5250 jiffies g=19853 c=19852 q=64401)
[ 574.637947] Task dump for CPU 112:
[ 574.637982] qemu-system-ppc R running task 0 12037 11828 0x00040004
[ 574.638051] Call Trace:
[ 574.638081] [c000001c1cddb430] [c0000000000f2710] sched_show_task+0xe0/0x180 (unreliable)
[ 574.638164] [c000001c1cddb4a0] [c0000000001326f4] rcu_dump_cpu_stacks+0xe4/0x150
[ 574.638246] [c000001c1cddb4f0] [c000000000137a04] rcu_check_callbacks+0x6b4/0x9c0
[ 574.638328] [c000001c1cddb610] [c00000000013f7c4] update_process_times+0x54/0xa0
[ 574.638409] [c000001c1cddb640] [c000000000156c28] tick_sched_handle.isra.5+0x48/0xe0
[ 574.638489] [c000001c1cddb680] [c000000000156d24] tick_sched_timer+0x64/0xd0
[ 574.638602] [c000001c1cddb6c0] [c000000000140274] __hrtimer_run_queues+0x124/0x420
[ 574.638683] [c000001c1cddb750] [c00000000014123c] hrtimer_interrupt+0xec/0x2c0
[ 574.638765] [c000001c1cddb810] [c00000000001fe5c] __timer_interrupt+0x8c/0x270
[ 574.638847] [c000001c1cddb860] [c00000000002053c] timer_interrupt+0x9c/0xe0
[ 574.638915] [c000001c1cddb890] [c000000000002750] decrementer_common+0x150/0x180
[ 574.639001] --- interrupt: 901 at kvmppc_hv_get_dirty_log+0x1c4/0x570 [kvm_hv]
[ 574.639001] LR = kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv]
[ 574.639114] [c000001c1cddbc30] [d00000001a524980] kvm_vm_ioctl_get_dirty_log_hv+0xd0/0x170 [kvm_hv]
[ 574.639209] [c000001c1cddbc80] [d00000001a4d4140] kvm_vm_ioctl_get_dirty_log+0x40/0x60 [kvm]
[ 574.639291] [c000001c1cddbcb0] [d00000001a4ca3cc] kvm_vm_ioctl+0x3fc/0x760 [kvm]
[ 574.639372] [c000001c1cddbd40] [c0000000002d9e18] do_vfs_ioctl+0xd8/0x8e0
[ 574.639442] [c000001c1cddbde0] [c0000000002da6f4] SyS_ioctl+0xd4/0xf0
[ 574.639512] [c000001c1cddbe30] [c000000000009260] system_call+0x38/0x108
[ 580.601573] NMI watchdog: BUG: soft lockup - CPU#112 stuck for 22s! [qemu-system-ppc:12037]
[ 580.601655] Modules linked in: xt_tcpudp(E) rpcsec_gss_krb5(E) nfsv4(E) dns_resolver(E) ext4(E) ecb(E) crc16(E) jbd2(E) mbcache(E) tun(E) btrfs(E) crc32c_generic(E) raid6_pq(E) xor(E) dm_crypt(E) xts(E) gf128mul(E) algif_skcipher(E) af_alg(E) dm_mod(E) bonding(E) cpufreq_stats(E) iptable_filter(E) ip_tables(E) x_tables(E) bridge(E) stp(E) llc(E) ipmi_devintf(E) ipmi_msghandler(E) i2c_dev(E) fuse(E) raid1(E) md_mod(E) ses(E) sd_mod(E) enclosure(E) sg(E) binfmt_misc(E) radeon(E) ttm(E) drm_kms_helper(E) snd_hda_codec_hdmi(E) snd_hda_intel(E) drm(E) snd_hda_codec(E) snd_hda_core(E) snd_hwdep(E) snd_pcm(E) syscopyarea(E) sysfillrect(E) sysimgblt(E) fb_sys_fops(E) snd_timer(E) evdev(E) i2c_algo_bit(E) snd(E) soundcore(E) at24(E) ahci(E) mpt3sas(E) nvmem_core(E) libahci(E) raid_class(E) scsi_transport_sas(E) powernv_rng(E) rng_core(E) uinput(E) kvm_hv(E) kvm(E) ib_srp(E) scsi_transport_srp(E) ofpart(E) powernv_flash(E) mtd(E) nfsd(E) opal_prd(E) auth_rpcgss(E) parport_pc(E) lp(E) parport(E) autofs4(E) nfsv3(E) nfs_acl(E) nfs(E) lockd(E) grace(E) sunrpc(E) fscache(E) ib_ipoib(E) ib_umad(E) rdma_ucm(E) ib_uverbs(E) rdma_cm(E) iw_cm(E) ib_cm(E) ib_sa(E) configfs(E) hid_generic(E) usbhid(E) hid(E) xhci_pci(E) xhci_hcd(E) usbcore(E) tg3(E) usb_common(E) ptp(E) pps_core(E) libphy(E) ib_mthca(E) ib_mad(E) ib_core(E) ib_addr(E)
[ 580.603295] CPU: 112 PID: 12037 Comm: qemu-system-ppc Tainted: G E 4.6.0-2-powerpc64le #1 Debian 4.6.3-1
[ 580.603386] task: c000001f706f0180 ti: c000001c1cdd8000 task.ti: c000001c1cdd8000
[ 580.603456] NIP: d00000001a52cb54 LR: d00000001a52cb88 CTR: 0000000000000000
[ 580.603524] REGS: c000001c1cddb900 TRAP: 0901 Tainted: G E (4.6.0-2-powerpc64le Debian 4.6.3-1)
[ 580.603613] MSR: 9000000000009033 <SF,HV,EE,ME,IR,DR,RI,LE> CR: 24048444 XER: 00000000
[ 580.603784] CFAR: d00000001a52cb18 SOFTE: 1
GPR00: d00000001a52cb88 c000001c1cddbb80 d00000001a53c580 40016e77790fe611
GPR04: 0000000beceac194 00000000019a4544 0000000000000001 0000000000000000
GPR08: 4000000000000000 0000000000000000 0000000000000001 8000000101a9b824
GPR12: c00000000009aea0 c00000000fbbf000
[ 580.604205] NIP [d00000001a52cb54] kvmppc_hv_get_dirty_log+0x1c4/0x570 [kvm_hv]
[ 580.604274] LR [d00000001a52cb88] kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv]
[ 580.604341] Call Trace:
[ 580.604366] [c000001c1cddbb80] [d00000001a52cb88] kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv] (unreliable)
[ 580.604469] [c000001c1cddbc30] [d00000001a524980] kvm_vm_ioctl_get_dirty_log_hv+0xd0/0x170 [kvm_hv]
[ 580.604562] [c000001c1cddbc80] [d00000001a4d4140] kvm_vm_ioctl_get_dirty_log+0x40/0x60 [kvm]
[ 580.604685] [c000001c1cddbcb0] [d00000001a4ca3cc] kvm_vm_ioctl+0x3fc/0x760 [kvm]
[ 580.604765] [c000001c1cddbd40] [c0000000002d9e18] do_vfs_ioctl+0xd8/0x8e0
[ 580.604837] [c000001c1cddbde0] [c0000000002da6f4] SyS_ioctl+0xd4/0xf0
[ 580.604906] [c000001c1cddbe30] [c000000000009260] system_call+0x38/0x108
[ 580.604977] Instruction dump:
[ 580.605012] 2ba90003 419effc4 7fa97000 419effbc 81314310 2f890000 409effb0 7d00b0a8
[ 580.605127] 7d09a039 40820014 7d08a378 7d00b1ad <41e20008> 7e89a378 4c00012c 2fa90000
[ 637.648374] INFO: rcu_sched self-detected stall on CPU
[ 637.648473] 112-...: (21002 ticks this GP) idle=699/140000000000001/0 softirq=5358/5382 fqs=20825
[ 637.648554] (t=21003 jiffies g=19853 c=19852 q=260741)
[ 637.648612] Task dump for CPU 112:
[ 637.648646] qemu-system-ppc R running task 0 12037 11828 0x00040004
[ 637.648719] Call Trace:
[ 637.648745] [c000001c1cddb430] [c0000000000f2710] sched_show_task+0xe0/0x180 (unreliable)
[ 637.648825] [c000001c1cddb4a0] [c0000000001326f4] rcu_dump_cpu_stacks+0xe4/0x150
[ 637.648903] [c000001c1cddb4f0] [c000000000137a04] rcu_check_callbacks+0x6b4/0x9c0
[ 637.648985] [c000001c1cddb610] [c00000000013f7c4] update_process_times+0x54/0xa0
[ 637.649067] [c000001c1cddb640] [c000000000156c28] tick_sched_handle.isra.5+0x48/0xe0
[ 637.649147] [c000001c1cddb680] [c000000000156d24] tick_sched_timer+0x64/0xd0
[ 637.649216] [c000001c1cddb6c0] [c000000000140274] __hrtimer_run_queues+0x124/0x420
[ 637.649296] [c000001c1cddb750] [c00000000014123c] hrtimer_interrupt+0xec/0x2c0
[ 637.649374] [c000001c1cddb810] [c00000000001fe5c] __timer_interrupt+0x8c/0x270
[ 637.649456] [c000001c1cddb860] [c00000000002053c] timer_interrupt+0x9c/0xe0
[ 637.649525] [c000001c1cddb890] [c000000000002750] decrementer_common+0x150/0x180
[ 637.649645] --- interrupt: 901 at kvmppc_hv_get_dirty_log+0x1c4/0x570 [kvm_hv]
[ 637.649645] LR = kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv]
[ 637.649760] [c000001c1cddbc30] [d00000001a524980] kvm_vm_ioctl_get_dirty_log_hv+0xd0/0x170 [kvm_hv]
[ 637.649854] [c000001c1cddbc80] [d00000001a4d4140] kvm_vm_ioctl_get_dirty_log+0x40/0x60 [kvm]
[ 637.649936] [c000001c1cddbcb0] [d00000001a4ca3cc] kvm_vm_ioctl+0x3fc/0x760 [kvm]
[ 637.650014] [c000001c1cddbd40] [c0000000002d9e18] do_vfs_ioctl+0xd8/0x8e0
[ 637.650083] [c000001c1cddbde0] [c0000000002da6f4] SyS_ioctl+0xd4/0xf0
[ 637.650153] [c000001c1cddbe30] [c000000000009260] system_call+0x38/0x108
To manage notifications about this bug go to:
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* [Qemu-devel] [Bug 1629618] Re: QEMU causes host hang / reset on PPC64EL
2016-10-02 4:01 [Qemu-devel] [Bug 1629618] [NEW] QEMU causes host hang / reset on PPC64EL Timothy Pearson
2016-10-02 4:01 ` [Qemu-devel] [Bug 1629618] " Timothy Pearson
@ 2016-10-04 9:35 ` T. Huth
2016-10-31 6:31 ` Timothy Pearson
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: T. Huth @ 2016-10-04 9:35 UTC (permalink / raw)
To: qemu-devel
Hi Timothy, sounds like this is a KVM (i.e. kernel) problem which might
not directly be related to QEMU. So you likely should report this bug in
the kernel bug tracker of your distro instead. Anyway, I've got some
questions:
1) Can you always reproduce this problem after a while, or does it occur
only very seldom? Is there something special going on in the guest or
host at that point in time or is it rather random?
2) Could you please check whether you can reproduce this problem with
the latest upstream kernel v4.8 in the host and guest? There have been
some fixes recently that could be related to this problem (e.g.
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=135e8c9250dd5c8c9a)
3) Can you reproduce this bug when using the latest version of QEMU
(v2.7) in the host?
** Tags added: ppc
--
You received this bug notification because you are a member of qemu-
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https://bugs.launchpad.net/bugs/1629618
Title:
QEMU causes host hang / reset on PPC64EL
Status in QEMU:
New
Bug description:
QEMU causes a host hang / reset on PPC64EL when used in KVM + HV mode
(kvm_hv module).
After a random amount of uptime, starting new QEMU virtual machines
will cause the host to experience a soft CPU lockup. Depending on
configuration and other random factors the host will either checkstop
and reboot, or hang indefinitely. The following stacktrace was pulled
from an instance where the host simply hung after starting a fourth
virtual machine.
Command line:
qemu-system-ppc64 --enable-kvm -M pseries -cpu host -smp
14,cores=14,threads=1,sockets=1 -m 64G -realtime mlock=on -kernel
vmlinux-4.7.0-1-powerpc64le -initrd initrd.img-4.7.0-1-powerpc64le
Lockup trace:
[ 527.393933] KVM guest htab at c000003ae4000000 (order 29), LPID 4
[ 574.637695] INFO: rcu_sched self-detected stall on CPU
[ 574.637799] 112-...: (5249 ticks this GP) idle=699/140000000000001/0 softirq=5358/5382 fqs=5072
[ 574.637877] (t=5250 jiffies g=19853 c=19852 q=64401)
[ 574.637947] Task dump for CPU 112:
[ 574.637982] qemu-system-ppc R running task 0 12037 11828 0x00040004
[ 574.638051] Call Trace:
[ 574.638081] [c000001c1cddb430] [c0000000000f2710] sched_show_task+0xe0/0x180 (unreliable)
[ 574.638164] [c000001c1cddb4a0] [c0000000001326f4] rcu_dump_cpu_stacks+0xe4/0x150
[ 574.638246] [c000001c1cddb4f0] [c000000000137a04] rcu_check_callbacks+0x6b4/0x9c0
[ 574.638328] [c000001c1cddb610] [c00000000013f7c4] update_process_times+0x54/0xa0
[ 574.638409] [c000001c1cddb640] [c000000000156c28] tick_sched_handle.isra.5+0x48/0xe0
[ 574.638489] [c000001c1cddb680] [c000000000156d24] tick_sched_timer+0x64/0xd0
[ 574.638602] [c000001c1cddb6c0] [c000000000140274] __hrtimer_run_queues+0x124/0x420
[ 574.638683] [c000001c1cddb750] [c00000000014123c] hrtimer_interrupt+0xec/0x2c0
[ 574.638765] [c000001c1cddb810] [c00000000001fe5c] __timer_interrupt+0x8c/0x270
[ 574.638847] [c000001c1cddb860] [c00000000002053c] timer_interrupt+0x9c/0xe0
[ 574.638915] [c000001c1cddb890] [c000000000002750] decrementer_common+0x150/0x180
[ 574.639001] --- interrupt: 901 at kvmppc_hv_get_dirty_log+0x1c4/0x570 [kvm_hv]
[ 574.639001] LR = kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv]
[ 574.639114] [c000001c1cddbc30] [d00000001a524980] kvm_vm_ioctl_get_dirty_log_hv+0xd0/0x170 [kvm_hv]
[ 574.639209] [c000001c1cddbc80] [d00000001a4d4140] kvm_vm_ioctl_get_dirty_log+0x40/0x60 [kvm]
[ 574.639291] [c000001c1cddbcb0] [d00000001a4ca3cc] kvm_vm_ioctl+0x3fc/0x760 [kvm]
[ 574.639372] [c000001c1cddbd40] [c0000000002d9e18] do_vfs_ioctl+0xd8/0x8e0
[ 574.639442] [c000001c1cddbde0] [c0000000002da6f4] SyS_ioctl+0xd4/0xf0
[ 574.639512] [c000001c1cddbe30] [c000000000009260] system_call+0x38/0x108
[ 580.601573] NMI watchdog: BUG: soft lockup - CPU#112 stuck for 22s! [qemu-system-ppc:12037]
[ 580.601655] Modules linked in: xt_tcpudp(E) rpcsec_gss_krb5(E) nfsv4(E) dns_resolver(E) ext4(E) ecb(E) crc16(E) jbd2(E) mbcache(E) tun(E) btrfs(E) crc32c_generic(E) raid6_pq(E) xor(E) dm_crypt(E) xts(E) gf128mul(E) algif_skcipher(E) af_alg(E) dm_mod(E) bonding(E) cpufreq_stats(E) iptable_filter(E) ip_tables(E) x_tables(E) bridge(E) stp(E) llc(E) ipmi_devintf(E) ipmi_msghandler(E) i2c_dev(E) fuse(E) raid1(E) md_mod(E) ses(E) sd_mod(E) enclosure(E) sg(E) binfmt_misc(E) radeon(E) ttm(E) drm_kms_helper(E) snd_hda_codec_hdmi(E) snd_hda_intel(E) drm(E) snd_hda_codec(E) snd_hda_core(E) snd_hwdep(E) snd_pcm(E) syscopyarea(E) sysfillrect(E) sysimgblt(E) fb_sys_fops(E) snd_timer(E) evdev(E) i2c_algo_bit(E) snd(E) soundcore(E) at24(E) ahci(E) mpt3sas(E) nvmem_core(E) libahci(E) raid_class(E) scsi_transport_sas(E) powernv_rng(E) rng_core(E) uinput(E) kvm_hv(E) kvm(E) ib_srp(E) scsi_transport_srp(E) ofpart(E) powernv_flash(E) mtd(E) nfsd(E) opal_prd(E) auth_rpcgss(E) parport_pc(E) lp(E) parport(E) autofs4(E) nfsv3(E) nfs_acl(E) nfs(E) lockd(E) grace(E) sunrpc(E) fscache(E) ib_ipoib(E) ib_umad(E) rdma_ucm(E) ib_uverbs(E) rdma_cm(E) iw_cm(E) ib_cm(E) ib_sa(E) configfs(E) hid_generic(E) usbhid(E) hid(E) xhci_pci(E) xhci_hcd(E) usbcore(E) tg3(E) usb_common(E) ptp(E) pps_core(E) libphy(E) ib_mthca(E) ib_mad(E) ib_core(E) ib_addr(E)
[ 580.603295] CPU: 112 PID: 12037 Comm: qemu-system-ppc Tainted: G E 4.6.0-2-powerpc64le #1 Debian 4.6.3-1
[ 580.603386] task: c000001f706f0180 ti: c000001c1cdd8000 task.ti: c000001c1cdd8000
[ 580.603456] NIP: d00000001a52cb54 LR: d00000001a52cb88 CTR: 0000000000000000
[ 580.603524] REGS: c000001c1cddb900 TRAP: 0901 Tainted: G E (4.6.0-2-powerpc64le Debian 4.6.3-1)
[ 580.603613] MSR: 9000000000009033 <SF,HV,EE,ME,IR,DR,RI,LE> CR: 24048444 XER: 00000000
[ 580.603784] CFAR: d00000001a52cb18 SOFTE: 1
GPR00: d00000001a52cb88 c000001c1cddbb80 d00000001a53c580 40016e77790fe611
GPR04: 0000000beceac194 00000000019a4544 0000000000000001 0000000000000000
GPR08: 4000000000000000 0000000000000000 0000000000000001 8000000101a9b824
GPR12: c00000000009aea0 c00000000fbbf000
[ 580.604205] NIP [d00000001a52cb54] kvmppc_hv_get_dirty_log+0x1c4/0x570 [kvm_hv]
[ 580.604274] LR [d00000001a52cb88] kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv]
[ 580.604341] Call Trace:
[ 580.604366] [c000001c1cddbb80] [d00000001a52cb88] kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv] (unreliable)
[ 580.604469] [c000001c1cddbc30] [d00000001a524980] kvm_vm_ioctl_get_dirty_log_hv+0xd0/0x170 [kvm_hv]
[ 580.604562] [c000001c1cddbc80] [d00000001a4d4140] kvm_vm_ioctl_get_dirty_log+0x40/0x60 [kvm]
[ 580.604685] [c000001c1cddbcb0] [d00000001a4ca3cc] kvm_vm_ioctl+0x3fc/0x760 [kvm]
[ 580.604765] [c000001c1cddbd40] [c0000000002d9e18] do_vfs_ioctl+0xd8/0x8e0
[ 580.604837] [c000001c1cddbde0] [c0000000002da6f4] SyS_ioctl+0xd4/0xf0
[ 580.604906] [c000001c1cddbe30] [c000000000009260] system_call+0x38/0x108
[ 580.604977] Instruction dump:
[ 580.605012] 2ba90003 419effc4 7fa97000 419effbc 81314310 2f890000 409effb0 7d00b0a8
[ 580.605127] 7d09a039 40820014 7d08a378 7d00b1ad <41e20008> 7e89a378 4c00012c 2fa90000
[ 637.648374] INFO: rcu_sched self-detected stall on CPU
[ 637.648473] 112-...: (21002 ticks this GP) idle=699/140000000000001/0 softirq=5358/5382 fqs=20825
[ 637.648554] (t=21003 jiffies g=19853 c=19852 q=260741)
[ 637.648612] Task dump for CPU 112:
[ 637.648646] qemu-system-ppc R running task 0 12037 11828 0x00040004
[ 637.648719] Call Trace:
[ 637.648745] [c000001c1cddb430] [c0000000000f2710] sched_show_task+0xe0/0x180 (unreliable)
[ 637.648825] [c000001c1cddb4a0] [c0000000001326f4] rcu_dump_cpu_stacks+0xe4/0x150
[ 637.648903] [c000001c1cddb4f0] [c000000000137a04] rcu_check_callbacks+0x6b4/0x9c0
[ 637.648985] [c000001c1cddb610] [c00000000013f7c4] update_process_times+0x54/0xa0
[ 637.649067] [c000001c1cddb640] [c000000000156c28] tick_sched_handle.isra.5+0x48/0xe0
[ 637.649147] [c000001c1cddb680] [c000000000156d24] tick_sched_timer+0x64/0xd0
[ 637.649216] [c000001c1cddb6c0] [c000000000140274] __hrtimer_run_queues+0x124/0x420
[ 637.649296] [c000001c1cddb750] [c00000000014123c] hrtimer_interrupt+0xec/0x2c0
[ 637.649374] [c000001c1cddb810] [c00000000001fe5c] __timer_interrupt+0x8c/0x270
[ 637.649456] [c000001c1cddb860] [c00000000002053c] timer_interrupt+0x9c/0xe0
[ 637.649525] [c000001c1cddb890] [c000000000002750] decrementer_common+0x150/0x180
[ 637.649645] --- interrupt: 901 at kvmppc_hv_get_dirty_log+0x1c4/0x570 [kvm_hv]
[ 637.649645] LR = kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv]
[ 637.649760] [c000001c1cddbc30] [d00000001a524980] kvm_vm_ioctl_get_dirty_log_hv+0xd0/0x170 [kvm_hv]
[ 637.649854] [c000001c1cddbc80] [d00000001a4d4140] kvm_vm_ioctl_get_dirty_log+0x40/0x60 [kvm]
[ 637.649936] [c000001c1cddbcb0] [d00000001a4ca3cc] kvm_vm_ioctl+0x3fc/0x760 [kvm]
[ 637.650014] [c000001c1cddbd40] [c0000000002d9e18] do_vfs_ioctl+0xd8/0x8e0
[ 637.650083] [c000001c1cddbde0] [c0000000002da6f4] SyS_ioctl+0xd4/0xf0
[ 637.650153] [c000001c1cddbe30] [c000000000009260] system_call+0x38/0x108
To manage notifications about this bug go to:
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^ permalink raw reply [flat|nested] 8+ messages in thread
* [Qemu-devel] [Bug 1629618] Re: QEMU causes host hang / reset on PPC64EL
2016-10-02 4:01 [Qemu-devel] [Bug 1629618] [NEW] QEMU causes host hang / reset on PPC64EL Timothy Pearson
2016-10-02 4:01 ` [Qemu-devel] [Bug 1629618] " Timothy Pearson
2016-10-04 9:35 ` T. Huth
@ 2016-10-31 6:31 ` Timothy Pearson
2016-11-01 19:57 ` Timothy Pearson
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: Timothy Pearson @ 2016-10-31 6:31 UTC (permalink / raw)
To: qemu-devel
After running 4.8 for the past week or so I think I can state the
problem is resolved at this point. The machine has not hard reset once
since the update, even after numerous host and VM reboots.
** Changed in: qemu
Status: New => Fix Released
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1629618
Title:
QEMU causes host hang / reset on PPC64EL
Status in QEMU:
Fix Released
Bug description:
QEMU causes a host hang / reset on PPC64EL when used in KVM + HV mode
(kvm_hv module).
After a random amount of uptime, starting new QEMU virtual machines
will cause the host to experience a soft CPU lockup. Depending on
configuration and other random factors the host will either checkstop
and reboot, or hang indefinitely. The following stacktrace was pulled
from an instance where the host simply hung after starting a fourth
virtual machine.
Command line:
qemu-system-ppc64 --enable-kvm -M pseries -cpu host -smp
14,cores=14,threads=1,sockets=1 -m 64G -realtime mlock=on -kernel
vmlinux-4.7.0-1-powerpc64le -initrd initrd.img-4.7.0-1-powerpc64le
Lockup trace:
[ 527.393933] KVM guest htab at c000003ae4000000 (order 29), LPID 4
[ 574.637695] INFO: rcu_sched self-detected stall on CPU
[ 574.637799] 112-...: (5249 ticks this GP) idle=699/140000000000001/0 softirq=5358/5382 fqs=5072
[ 574.637877] (t=5250 jiffies g=19853 c=19852 q=64401)
[ 574.637947] Task dump for CPU 112:
[ 574.637982] qemu-system-ppc R running task 0 12037 11828 0x00040004
[ 574.638051] Call Trace:
[ 574.638081] [c000001c1cddb430] [c0000000000f2710] sched_show_task+0xe0/0x180 (unreliable)
[ 574.638164] [c000001c1cddb4a0] [c0000000001326f4] rcu_dump_cpu_stacks+0xe4/0x150
[ 574.638246] [c000001c1cddb4f0] [c000000000137a04] rcu_check_callbacks+0x6b4/0x9c0
[ 574.638328] [c000001c1cddb610] [c00000000013f7c4] update_process_times+0x54/0xa0
[ 574.638409] [c000001c1cddb640] [c000000000156c28] tick_sched_handle.isra.5+0x48/0xe0
[ 574.638489] [c000001c1cddb680] [c000000000156d24] tick_sched_timer+0x64/0xd0
[ 574.638602] [c000001c1cddb6c0] [c000000000140274] __hrtimer_run_queues+0x124/0x420
[ 574.638683] [c000001c1cddb750] [c00000000014123c] hrtimer_interrupt+0xec/0x2c0
[ 574.638765] [c000001c1cddb810] [c00000000001fe5c] __timer_interrupt+0x8c/0x270
[ 574.638847] [c000001c1cddb860] [c00000000002053c] timer_interrupt+0x9c/0xe0
[ 574.638915] [c000001c1cddb890] [c000000000002750] decrementer_common+0x150/0x180
[ 574.639001] --- interrupt: 901 at kvmppc_hv_get_dirty_log+0x1c4/0x570 [kvm_hv]
[ 574.639001] LR = kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv]
[ 574.639114] [c000001c1cddbc30] [d00000001a524980] kvm_vm_ioctl_get_dirty_log_hv+0xd0/0x170 [kvm_hv]
[ 574.639209] [c000001c1cddbc80] [d00000001a4d4140] kvm_vm_ioctl_get_dirty_log+0x40/0x60 [kvm]
[ 574.639291] [c000001c1cddbcb0] [d00000001a4ca3cc] kvm_vm_ioctl+0x3fc/0x760 [kvm]
[ 574.639372] [c000001c1cddbd40] [c0000000002d9e18] do_vfs_ioctl+0xd8/0x8e0
[ 574.639442] [c000001c1cddbde0] [c0000000002da6f4] SyS_ioctl+0xd4/0xf0
[ 574.639512] [c000001c1cddbe30] [c000000000009260] system_call+0x38/0x108
[ 580.601573] NMI watchdog: BUG: soft lockup - CPU#112 stuck for 22s! [qemu-system-ppc:12037]
[ 580.601655] Modules linked in: xt_tcpudp(E) rpcsec_gss_krb5(E) nfsv4(E) dns_resolver(E) ext4(E) ecb(E) crc16(E) jbd2(E) mbcache(E) tun(E) btrfs(E) crc32c_generic(E) raid6_pq(E) xor(E) dm_crypt(E) xts(E) gf128mul(E) algif_skcipher(E) af_alg(E) dm_mod(E) bonding(E) cpufreq_stats(E) iptable_filter(E) ip_tables(E) x_tables(E) bridge(E) stp(E) llc(E) ipmi_devintf(E) ipmi_msghandler(E) i2c_dev(E) fuse(E) raid1(E) md_mod(E) ses(E) sd_mod(E) enclosure(E) sg(E) binfmt_misc(E) radeon(E) ttm(E) drm_kms_helper(E) snd_hda_codec_hdmi(E) snd_hda_intel(E) drm(E) snd_hda_codec(E) snd_hda_core(E) snd_hwdep(E) snd_pcm(E) syscopyarea(E) sysfillrect(E) sysimgblt(E) fb_sys_fops(E) snd_timer(E) evdev(E) i2c_algo_bit(E) snd(E) soundcore(E) at24(E) ahci(E) mpt3sas(E) nvmem_core(E) libahci(E) raid_class(E) scsi_transport_sas(E) powernv_rng(E) rng_core(E) uinput(E) kvm_hv(E) kvm(E) ib_srp(E) scsi_transport_srp(E) ofpart(E) powernv_flash(E) mtd(E) nfsd(E) opal_prd(E) auth_rpcgss(E) parport_pc(E) lp(E) parport(E) autofs4(E) nfsv3(E) nfs_acl(E) nfs(E) lockd(E) grace(E) sunrpc(E) fscache(E) ib_ipoib(E) ib_umad(E) rdma_ucm(E) ib_uverbs(E) rdma_cm(E) iw_cm(E) ib_cm(E) ib_sa(E) configfs(E) hid_generic(E) usbhid(E) hid(E) xhci_pci(E) xhci_hcd(E) usbcore(E) tg3(E) usb_common(E) ptp(E) pps_core(E) libphy(E) ib_mthca(E) ib_mad(E) ib_core(E) ib_addr(E)
[ 580.603295] CPU: 112 PID: 12037 Comm: qemu-system-ppc Tainted: G E 4.6.0-2-powerpc64le #1 Debian 4.6.3-1
[ 580.603386] task: c000001f706f0180 ti: c000001c1cdd8000 task.ti: c000001c1cdd8000
[ 580.603456] NIP: d00000001a52cb54 LR: d00000001a52cb88 CTR: 0000000000000000
[ 580.603524] REGS: c000001c1cddb900 TRAP: 0901 Tainted: G E (4.6.0-2-powerpc64le Debian 4.6.3-1)
[ 580.603613] MSR: 9000000000009033 <SF,HV,EE,ME,IR,DR,RI,LE> CR: 24048444 XER: 00000000
[ 580.603784] CFAR: d00000001a52cb18 SOFTE: 1
GPR00: d00000001a52cb88 c000001c1cddbb80 d00000001a53c580 40016e77790fe611
GPR04: 0000000beceac194 00000000019a4544 0000000000000001 0000000000000000
GPR08: 4000000000000000 0000000000000000 0000000000000001 8000000101a9b824
GPR12: c00000000009aea0 c00000000fbbf000
[ 580.604205] NIP [d00000001a52cb54] kvmppc_hv_get_dirty_log+0x1c4/0x570 [kvm_hv]
[ 580.604274] LR [d00000001a52cb88] kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv]
[ 580.604341] Call Trace:
[ 580.604366] [c000001c1cddbb80] [d00000001a52cb88] kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv] (unreliable)
[ 580.604469] [c000001c1cddbc30] [d00000001a524980] kvm_vm_ioctl_get_dirty_log_hv+0xd0/0x170 [kvm_hv]
[ 580.604562] [c000001c1cddbc80] [d00000001a4d4140] kvm_vm_ioctl_get_dirty_log+0x40/0x60 [kvm]
[ 580.604685] [c000001c1cddbcb0] [d00000001a4ca3cc] kvm_vm_ioctl+0x3fc/0x760 [kvm]
[ 580.604765] [c000001c1cddbd40] [c0000000002d9e18] do_vfs_ioctl+0xd8/0x8e0
[ 580.604837] [c000001c1cddbde0] [c0000000002da6f4] SyS_ioctl+0xd4/0xf0
[ 580.604906] [c000001c1cddbe30] [c000000000009260] system_call+0x38/0x108
[ 580.604977] Instruction dump:
[ 580.605012] 2ba90003 419effc4 7fa97000 419effbc 81314310 2f890000 409effb0 7d00b0a8
[ 580.605127] 7d09a039 40820014 7d08a378 7d00b1ad <41e20008> 7e89a378 4c00012c 2fa90000
[ 637.648374] INFO: rcu_sched self-detected stall on CPU
[ 637.648473] 112-...: (21002 ticks this GP) idle=699/140000000000001/0 softirq=5358/5382 fqs=20825
[ 637.648554] (t=21003 jiffies g=19853 c=19852 q=260741)
[ 637.648612] Task dump for CPU 112:
[ 637.648646] qemu-system-ppc R running task 0 12037 11828 0x00040004
[ 637.648719] Call Trace:
[ 637.648745] [c000001c1cddb430] [c0000000000f2710] sched_show_task+0xe0/0x180 (unreliable)
[ 637.648825] [c000001c1cddb4a0] [c0000000001326f4] rcu_dump_cpu_stacks+0xe4/0x150
[ 637.648903] [c000001c1cddb4f0] [c000000000137a04] rcu_check_callbacks+0x6b4/0x9c0
[ 637.648985] [c000001c1cddb610] [c00000000013f7c4] update_process_times+0x54/0xa0
[ 637.649067] [c000001c1cddb640] [c000000000156c28] tick_sched_handle.isra.5+0x48/0xe0
[ 637.649147] [c000001c1cddb680] [c000000000156d24] tick_sched_timer+0x64/0xd0
[ 637.649216] [c000001c1cddb6c0] [c000000000140274] __hrtimer_run_queues+0x124/0x420
[ 637.649296] [c000001c1cddb750] [c00000000014123c] hrtimer_interrupt+0xec/0x2c0
[ 637.649374] [c000001c1cddb810] [c00000000001fe5c] __timer_interrupt+0x8c/0x270
[ 637.649456] [c000001c1cddb860] [c00000000002053c] timer_interrupt+0x9c/0xe0
[ 637.649525] [c000001c1cddb890] [c000000000002750] decrementer_common+0x150/0x180
[ 637.649645] --- interrupt: 901 at kvmppc_hv_get_dirty_log+0x1c4/0x570 [kvm_hv]
[ 637.649645] LR = kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv]
[ 637.649760] [c000001c1cddbc30] [d00000001a524980] kvm_vm_ioctl_get_dirty_log_hv+0xd0/0x170 [kvm_hv]
[ 637.649854] [c000001c1cddbc80] [d00000001a4d4140] kvm_vm_ioctl_get_dirty_log+0x40/0x60 [kvm]
[ 637.649936] [c000001c1cddbcb0] [d00000001a4ca3cc] kvm_vm_ioctl+0x3fc/0x760 [kvm]
[ 637.650014] [c000001c1cddbd40] [c0000000002d9e18] do_vfs_ioctl+0xd8/0x8e0
[ 637.650083] [c000001c1cddbde0] [c0000000002da6f4] SyS_ioctl+0xd4/0xf0
[ 637.650153] [c000001c1cddbe30] [c000000000009260] system_call+0x38/0x108
To manage notifications about this bug go to:
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* [Qemu-devel] [Bug 1629618] Re: QEMU causes host hang / reset on PPC64EL
2016-10-02 4:01 [Qemu-devel] [Bug 1629618] [NEW] QEMU causes host hang / reset on PPC64EL Timothy Pearson
` (2 preceding siblings ...)
2016-10-31 6:31 ` Timothy Pearson
@ 2016-11-01 19:57 ` Timothy Pearson
2016-11-07 20:29 ` Timothy Pearson
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: Timothy Pearson @ 2016-11-01 19:57 UTC (permalink / raw)
To: qemu-devel
Unfortunately, the machine just crashed again. It seems related to the
use of 4K pages instead of the more typical 64K pages; the machine is
rock solid with 64K pages.
** Changed in: qemu
Status: Fix Released => New
--
You received this bug notification because you are a member of qemu-
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https://bugs.launchpad.net/bugs/1629618
Title:
QEMU causes host hang / reset on PPC64EL
Status in QEMU:
New
Bug description:
QEMU causes a host hang / reset on PPC64EL when used in KVM + HV mode
(kvm_hv module).
After a random amount of uptime, starting new QEMU virtual machines
will cause the host to experience a soft CPU lockup. Depending on
configuration and other random factors the host will either checkstop
and reboot, or hang indefinitely. The following stacktrace was pulled
from an instance where the host simply hung after starting a fourth
virtual machine.
Command line:
qemu-system-ppc64 --enable-kvm -M pseries -cpu host -smp
14,cores=14,threads=1,sockets=1 -m 64G -realtime mlock=on -kernel
vmlinux-4.7.0-1-powerpc64le -initrd initrd.img-4.7.0-1-powerpc64le
Lockup trace:
[ 527.393933] KVM guest htab at c000003ae4000000 (order 29), LPID 4
[ 574.637695] INFO: rcu_sched self-detected stall on CPU
[ 574.637799] 112-...: (5249 ticks this GP) idle=699/140000000000001/0 softirq=5358/5382 fqs=5072
[ 574.637877] (t=5250 jiffies g=19853 c=19852 q=64401)
[ 574.637947] Task dump for CPU 112:
[ 574.637982] qemu-system-ppc R running task 0 12037 11828 0x00040004
[ 574.638051] Call Trace:
[ 574.638081] [c000001c1cddb430] [c0000000000f2710] sched_show_task+0xe0/0x180 (unreliable)
[ 574.638164] [c000001c1cddb4a0] [c0000000001326f4] rcu_dump_cpu_stacks+0xe4/0x150
[ 574.638246] [c000001c1cddb4f0] [c000000000137a04] rcu_check_callbacks+0x6b4/0x9c0
[ 574.638328] [c000001c1cddb610] [c00000000013f7c4] update_process_times+0x54/0xa0
[ 574.638409] [c000001c1cddb640] [c000000000156c28] tick_sched_handle.isra.5+0x48/0xe0
[ 574.638489] [c000001c1cddb680] [c000000000156d24] tick_sched_timer+0x64/0xd0
[ 574.638602] [c000001c1cddb6c0] [c000000000140274] __hrtimer_run_queues+0x124/0x420
[ 574.638683] [c000001c1cddb750] [c00000000014123c] hrtimer_interrupt+0xec/0x2c0
[ 574.638765] [c000001c1cddb810] [c00000000001fe5c] __timer_interrupt+0x8c/0x270
[ 574.638847] [c000001c1cddb860] [c00000000002053c] timer_interrupt+0x9c/0xe0
[ 574.638915] [c000001c1cddb890] [c000000000002750] decrementer_common+0x150/0x180
[ 574.639001] --- interrupt: 901 at kvmppc_hv_get_dirty_log+0x1c4/0x570 [kvm_hv]
[ 574.639001] LR = kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv]
[ 574.639114] [c000001c1cddbc30] [d00000001a524980] kvm_vm_ioctl_get_dirty_log_hv+0xd0/0x170 [kvm_hv]
[ 574.639209] [c000001c1cddbc80] [d00000001a4d4140] kvm_vm_ioctl_get_dirty_log+0x40/0x60 [kvm]
[ 574.639291] [c000001c1cddbcb0] [d00000001a4ca3cc] kvm_vm_ioctl+0x3fc/0x760 [kvm]
[ 574.639372] [c000001c1cddbd40] [c0000000002d9e18] do_vfs_ioctl+0xd8/0x8e0
[ 574.639442] [c000001c1cddbde0] [c0000000002da6f4] SyS_ioctl+0xd4/0xf0
[ 574.639512] [c000001c1cddbe30] [c000000000009260] system_call+0x38/0x108
[ 580.601573] NMI watchdog: BUG: soft lockup - CPU#112 stuck for 22s! [qemu-system-ppc:12037]
[ 580.601655] Modules linked in: xt_tcpudp(E) rpcsec_gss_krb5(E) nfsv4(E) dns_resolver(E) ext4(E) ecb(E) crc16(E) jbd2(E) mbcache(E) tun(E) btrfs(E) crc32c_generic(E) raid6_pq(E) xor(E) dm_crypt(E) xts(E) gf128mul(E) algif_skcipher(E) af_alg(E) dm_mod(E) bonding(E) cpufreq_stats(E) iptable_filter(E) ip_tables(E) x_tables(E) bridge(E) stp(E) llc(E) ipmi_devintf(E) ipmi_msghandler(E) i2c_dev(E) fuse(E) raid1(E) md_mod(E) ses(E) sd_mod(E) enclosure(E) sg(E) binfmt_misc(E) radeon(E) ttm(E) drm_kms_helper(E) snd_hda_codec_hdmi(E) snd_hda_intel(E) drm(E) snd_hda_codec(E) snd_hda_core(E) snd_hwdep(E) snd_pcm(E) syscopyarea(E) sysfillrect(E) sysimgblt(E) fb_sys_fops(E) snd_timer(E) evdev(E) i2c_algo_bit(E) snd(E) soundcore(E) at24(E) ahci(E) mpt3sas(E) nvmem_core(E) libahci(E) raid_class(E) scsi_transport_sas(E) powernv_rng(E) rng_core(E) uinput(E) kvm_hv(E) kvm(E) ib_srp(E) scsi_transport_srp(E) ofpart(E) powernv_flash(E) mtd(E) nfsd(E) opal_prd(E) auth_rpcgss(E) parport_pc(E) lp(E) parport(E) autofs4(E) nfsv3(E) nfs_acl(E) nfs(E) lockd(E) grace(E) sunrpc(E) fscache(E) ib_ipoib(E) ib_umad(E) rdma_ucm(E) ib_uverbs(E) rdma_cm(E) iw_cm(E) ib_cm(E) ib_sa(E) configfs(E) hid_generic(E) usbhid(E) hid(E) xhci_pci(E) xhci_hcd(E) usbcore(E) tg3(E) usb_common(E) ptp(E) pps_core(E) libphy(E) ib_mthca(E) ib_mad(E) ib_core(E) ib_addr(E)
[ 580.603295] CPU: 112 PID: 12037 Comm: qemu-system-ppc Tainted: G E 4.6.0-2-powerpc64le #1 Debian 4.6.3-1
[ 580.603386] task: c000001f706f0180 ti: c000001c1cdd8000 task.ti: c000001c1cdd8000
[ 580.603456] NIP: d00000001a52cb54 LR: d00000001a52cb88 CTR: 0000000000000000
[ 580.603524] REGS: c000001c1cddb900 TRAP: 0901 Tainted: G E (4.6.0-2-powerpc64le Debian 4.6.3-1)
[ 580.603613] MSR: 9000000000009033 <SF,HV,EE,ME,IR,DR,RI,LE> CR: 24048444 XER: 00000000
[ 580.603784] CFAR: d00000001a52cb18 SOFTE: 1
GPR00: d00000001a52cb88 c000001c1cddbb80 d00000001a53c580 40016e77790fe611
GPR04: 0000000beceac194 00000000019a4544 0000000000000001 0000000000000000
GPR08: 4000000000000000 0000000000000000 0000000000000001 8000000101a9b824
GPR12: c00000000009aea0 c00000000fbbf000
[ 580.604205] NIP [d00000001a52cb54] kvmppc_hv_get_dirty_log+0x1c4/0x570 [kvm_hv]
[ 580.604274] LR [d00000001a52cb88] kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv]
[ 580.604341] Call Trace:
[ 580.604366] [c000001c1cddbb80] [d00000001a52cb88] kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv] (unreliable)
[ 580.604469] [c000001c1cddbc30] [d00000001a524980] kvm_vm_ioctl_get_dirty_log_hv+0xd0/0x170 [kvm_hv]
[ 580.604562] [c000001c1cddbc80] [d00000001a4d4140] kvm_vm_ioctl_get_dirty_log+0x40/0x60 [kvm]
[ 580.604685] [c000001c1cddbcb0] [d00000001a4ca3cc] kvm_vm_ioctl+0x3fc/0x760 [kvm]
[ 580.604765] [c000001c1cddbd40] [c0000000002d9e18] do_vfs_ioctl+0xd8/0x8e0
[ 580.604837] [c000001c1cddbde0] [c0000000002da6f4] SyS_ioctl+0xd4/0xf0
[ 580.604906] [c000001c1cddbe30] [c000000000009260] system_call+0x38/0x108
[ 580.604977] Instruction dump:
[ 580.605012] 2ba90003 419effc4 7fa97000 419effbc 81314310 2f890000 409effb0 7d00b0a8
[ 580.605127] 7d09a039 40820014 7d08a378 7d00b1ad <41e20008> 7e89a378 4c00012c 2fa90000
[ 637.648374] INFO: rcu_sched self-detected stall on CPU
[ 637.648473] 112-...: (21002 ticks this GP) idle=699/140000000000001/0 softirq=5358/5382 fqs=20825
[ 637.648554] (t=21003 jiffies g=19853 c=19852 q=260741)
[ 637.648612] Task dump for CPU 112:
[ 637.648646] qemu-system-ppc R running task 0 12037 11828 0x00040004
[ 637.648719] Call Trace:
[ 637.648745] [c000001c1cddb430] [c0000000000f2710] sched_show_task+0xe0/0x180 (unreliable)
[ 637.648825] [c000001c1cddb4a0] [c0000000001326f4] rcu_dump_cpu_stacks+0xe4/0x150
[ 637.648903] [c000001c1cddb4f0] [c000000000137a04] rcu_check_callbacks+0x6b4/0x9c0
[ 637.648985] [c000001c1cddb610] [c00000000013f7c4] update_process_times+0x54/0xa0
[ 637.649067] [c000001c1cddb640] [c000000000156c28] tick_sched_handle.isra.5+0x48/0xe0
[ 637.649147] [c000001c1cddb680] [c000000000156d24] tick_sched_timer+0x64/0xd0
[ 637.649216] [c000001c1cddb6c0] [c000000000140274] __hrtimer_run_queues+0x124/0x420
[ 637.649296] [c000001c1cddb750] [c00000000014123c] hrtimer_interrupt+0xec/0x2c0
[ 637.649374] [c000001c1cddb810] [c00000000001fe5c] __timer_interrupt+0x8c/0x270
[ 637.649456] [c000001c1cddb860] [c00000000002053c] timer_interrupt+0x9c/0xe0
[ 637.649525] [c000001c1cddb890] [c000000000002750] decrementer_common+0x150/0x180
[ 637.649645] --- interrupt: 901 at kvmppc_hv_get_dirty_log+0x1c4/0x570 [kvm_hv]
[ 637.649645] LR = kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv]
[ 637.649760] [c000001c1cddbc30] [d00000001a524980] kvm_vm_ioctl_get_dirty_log_hv+0xd0/0x170 [kvm_hv]
[ 637.649854] [c000001c1cddbc80] [d00000001a4d4140] kvm_vm_ioctl_get_dirty_log+0x40/0x60 [kvm]
[ 637.649936] [c000001c1cddbcb0] [d00000001a4ca3cc] kvm_vm_ioctl+0x3fc/0x760 [kvm]
[ 637.650014] [c000001c1cddbd40] [c0000000002d9e18] do_vfs_ioctl+0xd8/0x8e0
[ 637.650083] [c000001c1cddbde0] [c0000000002da6f4] SyS_ioctl+0xd4/0xf0
[ 637.650153] [c000001c1cddbe30] [c000000000009260] system_call+0x38/0x108
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1629618/+subscriptions
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Qemu-devel] [Bug 1629618] Re: QEMU causes host hang / reset on PPC64EL
2016-10-02 4:01 [Qemu-devel] [Bug 1629618] [NEW] QEMU causes host hang / reset on PPC64EL Timothy Pearson
` (3 preceding siblings ...)
2016-11-01 19:57 ` Timothy Pearson
@ 2016-11-07 20:29 ` Timothy Pearson
2016-11-08 7:39 ` Thomas Huth
2017-03-30 14:14 ` Thomas Huth
6 siblings, 0 replies; 8+ messages in thread
From: Timothy Pearson @ 2016-11-07 20:29 UTC (permalink / raw)
To: qemu-devel
Still seeing this issue. Only seems to happen with 4K pages on the
host. Any further debugging I could try?
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1629618
Title:
QEMU causes host hang / reset on PPC64EL
Status in QEMU:
New
Bug description:
QEMU causes a host hang / reset on PPC64EL when used in KVM + HV mode
(kvm_hv module).
After a random amount of uptime, starting new QEMU virtual machines
will cause the host to experience a soft CPU lockup. Depending on
configuration and other random factors the host will either checkstop
and reboot, or hang indefinitely. The following stacktrace was pulled
from an instance where the host simply hung after starting a fourth
virtual machine.
Command line:
qemu-system-ppc64 --enable-kvm -M pseries -cpu host -smp
14,cores=14,threads=1,sockets=1 -m 64G -realtime mlock=on -kernel
vmlinux-4.7.0-1-powerpc64le -initrd initrd.img-4.7.0-1-powerpc64le
Lockup trace:
[ 527.393933] KVM guest htab at c000003ae4000000 (order 29), LPID 4
[ 574.637695] INFO: rcu_sched self-detected stall on CPU
[ 574.637799] 112-...: (5249 ticks this GP) idle=699/140000000000001/0 softirq=5358/5382 fqs=5072
[ 574.637877] (t=5250 jiffies g=19853 c=19852 q=64401)
[ 574.637947] Task dump for CPU 112:
[ 574.637982] qemu-system-ppc R running task 0 12037 11828 0x00040004
[ 574.638051] Call Trace:
[ 574.638081] [c000001c1cddb430] [c0000000000f2710] sched_show_task+0xe0/0x180 (unreliable)
[ 574.638164] [c000001c1cddb4a0] [c0000000001326f4] rcu_dump_cpu_stacks+0xe4/0x150
[ 574.638246] [c000001c1cddb4f0] [c000000000137a04] rcu_check_callbacks+0x6b4/0x9c0
[ 574.638328] [c000001c1cddb610] [c00000000013f7c4] update_process_times+0x54/0xa0
[ 574.638409] [c000001c1cddb640] [c000000000156c28] tick_sched_handle.isra.5+0x48/0xe0
[ 574.638489] [c000001c1cddb680] [c000000000156d24] tick_sched_timer+0x64/0xd0
[ 574.638602] [c000001c1cddb6c0] [c000000000140274] __hrtimer_run_queues+0x124/0x420
[ 574.638683] [c000001c1cddb750] [c00000000014123c] hrtimer_interrupt+0xec/0x2c0
[ 574.638765] [c000001c1cddb810] [c00000000001fe5c] __timer_interrupt+0x8c/0x270
[ 574.638847] [c000001c1cddb860] [c00000000002053c] timer_interrupt+0x9c/0xe0
[ 574.638915] [c000001c1cddb890] [c000000000002750] decrementer_common+0x150/0x180
[ 574.639001] --- interrupt: 901 at kvmppc_hv_get_dirty_log+0x1c4/0x570 [kvm_hv]
[ 574.639001] LR = kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv]
[ 574.639114] [c000001c1cddbc30] [d00000001a524980] kvm_vm_ioctl_get_dirty_log_hv+0xd0/0x170 [kvm_hv]
[ 574.639209] [c000001c1cddbc80] [d00000001a4d4140] kvm_vm_ioctl_get_dirty_log+0x40/0x60 [kvm]
[ 574.639291] [c000001c1cddbcb0] [d00000001a4ca3cc] kvm_vm_ioctl+0x3fc/0x760 [kvm]
[ 574.639372] [c000001c1cddbd40] [c0000000002d9e18] do_vfs_ioctl+0xd8/0x8e0
[ 574.639442] [c000001c1cddbde0] [c0000000002da6f4] SyS_ioctl+0xd4/0xf0
[ 574.639512] [c000001c1cddbe30] [c000000000009260] system_call+0x38/0x108
[ 580.601573] NMI watchdog: BUG: soft lockup - CPU#112 stuck for 22s! [qemu-system-ppc:12037]
[ 580.601655] Modules linked in: xt_tcpudp(E) rpcsec_gss_krb5(E) nfsv4(E) dns_resolver(E) ext4(E) ecb(E) crc16(E) jbd2(E) mbcache(E) tun(E) btrfs(E) crc32c_generic(E) raid6_pq(E) xor(E) dm_crypt(E) xts(E) gf128mul(E) algif_skcipher(E) af_alg(E) dm_mod(E) bonding(E) cpufreq_stats(E) iptable_filter(E) ip_tables(E) x_tables(E) bridge(E) stp(E) llc(E) ipmi_devintf(E) ipmi_msghandler(E) i2c_dev(E) fuse(E) raid1(E) md_mod(E) ses(E) sd_mod(E) enclosure(E) sg(E) binfmt_misc(E) radeon(E) ttm(E) drm_kms_helper(E) snd_hda_codec_hdmi(E) snd_hda_intel(E) drm(E) snd_hda_codec(E) snd_hda_core(E) snd_hwdep(E) snd_pcm(E) syscopyarea(E) sysfillrect(E) sysimgblt(E) fb_sys_fops(E) snd_timer(E) evdev(E) i2c_algo_bit(E) snd(E) soundcore(E) at24(E) ahci(E) mpt3sas(E) nvmem_core(E) libahci(E) raid_class(E) scsi_transport_sas(E) powernv_rng(E) rng_core(E) uinput(E) kvm_hv(E) kvm(E) ib_srp(E) scsi_transport_srp(E) ofpart(E) powernv_flash(E) mtd(E) nfsd(E) opal_prd(E) auth_rpcgss(E) parport_pc(E) lp(E) parport(E) autofs4(E) nfsv3(E) nfs_acl(E) nfs(E) lockd(E) grace(E) sunrpc(E) fscache(E) ib_ipoib(E) ib_umad(E) rdma_ucm(E) ib_uverbs(E) rdma_cm(E) iw_cm(E) ib_cm(E) ib_sa(E) configfs(E) hid_generic(E) usbhid(E) hid(E) xhci_pci(E) xhci_hcd(E) usbcore(E) tg3(E) usb_common(E) ptp(E) pps_core(E) libphy(E) ib_mthca(E) ib_mad(E) ib_core(E) ib_addr(E)
[ 580.603295] CPU: 112 PID: 12037 Comm: qemu-system-ppc Tainted: G E 4.6.0-2-powerpc64le #1 Debian 4.6.3-1
[ 580.603386] task: c000001f706f0180 ti: c000001c1cdd8000 task.ti: c000001c1cdd8000
[ 580.603456] NIP: d00000001a52cb54 LR: d00000001a52cb88 CTR: 0000000000000000
[ 580.603524] REGS: c000001c1cddb900 TRAP: 0901 Tainted: G E (4.6.0-2-powerpc64le Debian 4.6.3-1)
[ 580.603613] MSR: 9000000000009033 <SF,HV,EE,ME,IR,DR,RI,LE> CR: 24048444 XER: 00000000
[ 580.603784] CFAR: d00000001a52cb18 SOFTE: 1
GPR00: d00000001a52cb88 c000001c1cddbb80 d00000001a53c580 40016e77790fe611
GPR04: 0000000beceac194 00000000019a4544 0000000000000001 0000000000000000
GPR08: 4000000000000000 0000000000000000 0000000000000001 8000000101a9b824
GPR12: c00000000009aea0 c00000000fbbf000
[ 580.604205] NIP [d00000001a52cb54] kvmppc_hv_get_dirty_log+0x1c4/0x570 [kvm_hv]
[ 580.604274] LR [d00000001a52cb88] kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv]
[ 580.604341] Call Trace:
[ 580.604366] [c000001c1cddbb80] [d00000001a52cb88] kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv] (unreliable)
[ 580.604469] [c000001c1cddbc30] [d00000001a524980] kvm_vm_ioctl_get_dirty_log_hv+0xd0/0x170 [kvm_hv]
[ 580.604562] [c000001c1cddbc80] [d00000001a4d4140] kvm_vm_ioctl_get_dirty_log+0x40/0x60 [kvm]
[ 580.604685] [c000001c1cddbcb0] [d00000001a4ca3cc] kvm_vm_ioctl+0x3fc/0x760 [kvm]
[ 580.604765] [c000001c1cddbd40] [c0000000002d9e18] do_vfs_ioctl+0xd8/0x8e0
[ 580.604837] [c000001c1cddbde0] [c0000000002da6f4] SyS_ioctl+0xd4/0xf0
[ 580.604906] [c000001c1cddbe30] [c000000000009260] system_call+0x38/0x108
[ 580.604977] Instruction dump:
[ 580.605012] 2ba90003 419effc4 7fa97000 419effbc 81314310 2f890000 409effb0 7d00b0a8
[ 580.605127] 7d09a039 40820014 7d08a378 7d00b1ad <41e20008> 7e89a378 4c00012c 2fa90000
[ 637.648374] INFO: rcu_sched self-detected stall on CPU
[ 637.648473] 112-...: (21002 ticks this GP) idle=699/140000000000001/0 softirq=5358/5382 fqs=20825
[ 637.648554] (t=21003 jiffies g=19853 c=19852 q=260741)
[ 637.648612] Task dump for CPU 112:
[ 637.648646] qemu-system-ppc R running task 0 12037 11828 0x00040004
[ 637.648719] Call Trace:
[ 637.648745] [c000001c1cddb430] [c0000000000f2710] sched_show_task+0xe0/0x180 (unreliable)
[ 637.648825] [c000001c1cddb4a0] [c0000000001326f4] rcu_dump_cpu_stacks+0xe4/0x150
[ 637.648903] [c000001c1cddb4f0] [c000000000137a04] rcu_check_callbacks+0x6b4/0x9c0
[ 637.648985] [c000001c1cddb610] [c00000000013f7c4] update_process_times+0x54/0xa0
[ 637.649067] [c000001c1cddb640] [c000000000156c28] tick_sched_handle.isra.5+0x48/0xe0
[ 637.649147] [c000001c1cddb680] [c000000000156d24] tick_sched_timer+0x64/0xd0
[ 637.649216] [c000001c1cddb6c0] [c000000000140274] __hrtimer_run_queues+0x124/0x420
[ 637.649296] [c000001c1cddb750] [c00000000014123c] hrtimer_interrupt+0xec/0x2c0
[ 637.649374] [c000001c1cddb810] [c00000000001fe5c] __timer_interrupt+0x8c/0x270
[ 637.649456] [c000001c1cddb860] [c00000000002053c] timer_interrupt+0x9c/0xe0
[ 637.649525] [c000001c1cddb890] [c000000000002750] decrementer_common+0x150/0x180
[ 637.649645] --- interrupt: 901 at kvmppc_hv_get_dirty_log+0x1c4/0x570 [kvm_hv]
[ 637.649645] LR = kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv]
[ 637.649760] [c000001c1cddbc30] [d00000001a524980] kvm_vm_ioctl_get_dirty_log_hv+0xd0/0x170 [kvm_hv]
[ 637.649854] [c000001c1cddbc80] [d00000001a4d4140] kvm_vm_ioctl_get_dirty_log+0x40/0x60 [kvm]
[ 637.649936] [c000001c1cddbcb0] [d00000001a4ca3cc] kvm_vm_ioctl+0x3fc/0x760 [kvm]
[ 637.650014] [c000001c1cddbd40] [c0000000002d9e18] do_vfs_ioctl+0xd8/0x8e0
[ 637.650083] [c000001c1cddbde0] [c0000000002da6f4] SyS_ioctl+0xd4/0xf0
[ 637.650153] [c000001c1cddbe30] [c000000000009260] system_call+0x38/0x108
To manage notifications about this bug go to:
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* [Qemu-devel] [Bug 1629618] Re: QEMU causes host hang / reset on PPC64EL
2016-10-02 4:01 [Qemu-devel] [Bug 1629618] [NEW] QEMU causes host hang / reset on PPC64EL Timothy Pearson
` (4 preceding siblings ...)
2016-11-07 20:29 ` Timothy Pearson
@ 2016-11-08 7:39 ` Thomas Huth
2017-03-30 14:14 ` Thomas Huth
6 siblings, 0 replies; 8+ messages in thread
From: Thomas Huth @ 2016-11-08 7:39 UTC (permalink / raw)
To: qemu-devel
No idea (apart from asking why're you're still using 4k pages on the host - hardly anybody seems to do that anymore).
Anyway, this sounds like a kernel bug, not a QEMU problem, so you should try to get help via the kernel bug tracker or the KVM mailing list instead.
--
You received this bug notification because you are a member of qemu-
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https://bugs.launchpad.net/bugs/1629618
Title:
QEMU causes host hang / reset on PPC64EL
Status in QEMU:
New
Bug description:
QEMU causes a host hang / reset on PPC64EL when used in KVM + HV mode
(kvm_hv module).
After a random amount of uptime, starting new QEMU virtual machines
will cause the host to experience a soft CPU lockup. Depending on
configuration and other random factors the host will either checkstop
and reboot, or hang indefinitely. The following stacktrace was pulled
from an instance where the host simply hung after starting a fourth
virtual machine.
Command line:
qemu-system-ppc64 --enable-kvm -M pseries -cpu host -smp
14,cores=14,threads=1,sockets=1 -m 64G -realtime mlock=on -kernel
vmlinux-4.7.0-1-powerpc64le -initrd initrd.img-4.7.0-1-powerpc64le
Lockup trace:
[ 527.393933] KVM guest htab at c000003ae4000000 (order 29), LPID 4
[ 574.637695] INFO: rcu_sched self-detected stall on CPU
[ 574.637799] 112-...: (5249 ticks this GP) idle=699/140000000000001/0 softirq=5358/5382 fqs=5072
[ 574.637877] (t=5250 jiffies g=19853 c=19852 q=64401)
[ 574.637947] Task dump for CPU 112:
[ 574.637982] qemu-system-ppc R running task 0 12037 11828 0x00040004
[ 574.638051] Call Trace:
[ 574.638081] [c000001c1cddb430] [c0000000000f2710] sched_show_task+0xe0/0x180 (unreliable)
[ 574.638164] [c000001c1cddb4a0] [c0000000001326f4] rcu_dump_cpu_stacks+0xe4/0x150
[ 574.638246] [c000001c1cddb4f0] [c000000000137a04] rcu_check_callbacks+0x6b4/0x9c0
[ 574.638328] [c000001c1cddb610] [c00000000013f7c4] update_process_times+0x54/0xa0
[ 574.638409] [c000001c1cddb640] [c000000000156c28] tick_sched_handle.isra.5+0x48/0xe0
[ 574.638489] [c000001c1cddb680] [c000000000156d24] tick_sched_timer+0x64/0xd0
[ 574.638602] [c000001c1cddb6c0] [c000000000140274] __hrtimer_run_queues+0x124/0x420
[ 574.638683] [c000001c1cddb750] [c00000000014123c] hrtimer_interrupt+0xec/0x2c0
[ 574.638765] [c000001c1cddb810] [c00000000001fe5c] __timer_interrupt+0x8c/0x270
[ 574.638847] [c000001c1cddb860] [c00000000002053c] timer_interrupt+0x9c/0xe0
[ 574.638915] [c000001c1cddb890] [c000000000002750] decrementer_common+0x150/0x180
[ 574.639001] --- interrupt: 901 at kvmppc_hv_get_dirty_log+0x1c4/0x570 [kvm_hv]
[ 574.639001] LR = kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv]
[ 574.639114] [c000001c1cddbc30] [d00000001a524980] kvm_vm_ioctl_get_dirty_log_hv+0xd0/0x170 [kvm_hv]
[ 574.639209] [c000001c1cddbc80] [d00000001a4d4140] kvm_vm_ioctl_get_dirty_log+0x40/0x60 [kvm]
[ 574.639291] [c000001c1cddbcb0] [d00000001a4ca3cc] kvm_vm_ioctl+0x3fc/0x760 [kvm]
[ 574.639372] [c000001c1cddbd40] [c0000000002d9e18] do_vfs_ioctl+0xd8/0x8e0
[ 574.639442] [c000001c1cddbde0] [c0000000002da6f4] SyS_ioctl+0xd4/0xf0
[ 574.639512] [c000001c1cddbe30] [c000000000009260] system_call+0x38/0x108
[ 580.601573] NMI watchdog: BUG: soft lockup - CPU#112 stuck for 22s! [qemu-system-ppc:12037]
[ 580.601655] Modules linked in: xt_tcpudp(E) rpcsec_gss_krb5(E) nfsv4(E) dns_resolver(E) ext4(E) ecb(E) crc16(E) jbd2(E) mbcache(E) tun(E) btrfs(E) crc32c_generic(E) raid6_pq(E) xor(E) dm_crypt(E) xts(E) gf128mul(E) algif_skcipher(E) af_alg(E) dm_mod(E) bonding(E) cpufreq_stats(E) iptable_filter(E) ip_tables(E) x_tables(E) bridge(E) stp(E) llc(E) ipmi_devintf(E) ipmi_msghandler(E) i2c_dev(E) fuse(E) raid1(E) md_mod(E) ses(E) sd_mod(E) enclosure(E) sg(E) binfmt_misc(E) radeon(E) ttm(E) drm_kms_helper(E) snd_hda_codec_hdmi(E) snd_hda_intel(E) drm(E) snd_hda_codec(E) snd_hda_core(E) snd_hwdep(E) snd_pcm(E) syscopyarea(E) sysfillrect(E) sysimgblt(E) fb_sys_fops(E) snd_timer(E) evdev(E) i2c_algo_bit(E) snd(E) soundcore(E) at24(E) ahci(E) mpt3sas(E) nvmem_core(E) libahci(E) raid_class(E) scsi_transport_sas(E) powernv_rng(E) rng_core(E) uinput(E) kvm_hv(E) kvm(E) ib_srp(E) scsi_transport_srp(E) ofpart(E) powernv_flash(E) mtd(E) nfsd(E) opal_prd(E) auth_rpcgss(E) parport_pc(E) lp(E) parport(E) autofs4(E) nfsv3(E) nfs_acl(E) nfs(E) lockd(E) grace(E) sunrpc(E) fscache(E) ib_ipoib(E) ib_umad(E) rdma_ucm(E) ib_uverbs(E) rdma_cm(E) iw_cm(E) ib_cm(E) ib_sa(E) configfs(E) hid_generic(E) usbhid(E) hid(E) xhci_pci(E) xhci_hcd(E) usbcore(E) tg3(E) usb_common(E) ptp(E) pps_core(E) libphy(E) ib_mthca(E) ib_mad(E) ib_core(E) ib_addr(E)
[ 580.603295] CPU: 112 PID: 12037 Comm: qemu-system-ppc Tainted: G E 4.6.0-2-powerpc64le #1 Debian 4.6.3-1
[ 580.603386] task: c000001f706f0180 ti: c000001c1cdd8000 task.ti: c000001c1cdd8000
[ 580.603456] NIP: d00000001a52cb54 LR: d00000001a52cb88 CTR: 0000000000000000
[ 580.603524] REGS: c000001c1cddb900 TRAP: 0901 Tainted: G E (4.6.0-2-powerpc64le Debian 4.6.3-1)
[ 580.603613] MSR: 9000000000009033 <SF,HV,EE,ME,IR,DR,RI,LE> CR: 24048444 XER: 00000000
[ 580.603784] CFAR: d00000001a52cb18 SOFTE: 1
GPR00: d00000001a52cb88 c000001c1cddbb80 d00000001a53c580 40016e77790fe611
GPR04: 0000000beceac194 00000000019a4544 0000000000000001 0000000000000000
GPR08: 4000000000000000 0000000000000000 0000000000000001 8000000101a9b824
GPR12: c00000000009aea0 c00000000fbbf000
[ 580.604205] NIP [d00000001a52cb54] kvmppc_hv_get_dirty_log+0x1c4/0x570 [kvm_hv]
[ 580.604274] LR [d00000001a52cb88] kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv]
[ 580.604341] Call Trace:
[ 580.604366] [c000001c1cddbb80] [d00000001a52cb88] kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv] (unreliable)
[ 580.604469] [c000001c1cddbc30] [d00000001a524980] kvm_vm_ioctl_get_dirty_log_hv+0xd0/0x170 [kvm_hv]
[ 580.604562] [c000001c1cddbc80] [d00000001a4d4140] kvm_vm_ioctl_get_dirty_log+0x40/0x60 [kvm]
[ 580.604685] [c000001c1cddbcb0] [d00000001a4ca3cc] kvm_vm_ioctl+0x3fc/0x760 [kvm]
[ 580.604765] [c000001c1cddbd40] [c0000000002d9e18] do_vfs_ioctl+0xd8/0x8e0
[ 580.604837] [c000001c1cddbde0] [c0000000002da6f4] SyS_ioctl+0xd4/0xf0
[ 580.604906] [c000001c1cddbe30] [c000000000009260] system_call+0x38/0x108
[ 580.604977] Instruction dump:
[ 580.605012] 2ba90003 419effc4 7fa97000 419effbc 81314310 2f890000 409effb0 7d00b0a8
[ 580.605127] 7d09a039 40820014 7d08a378 7d00b1ad <41e20008> 7e89a378 4c00012c 2fa90000
[ 637.648374] INFO: rcu_sched self-detected stall on CPU
[ 637.648473] 112-...: (21002 ticks this GP) idle=699/140000000000001/0 softirq=5358/5382 fqs=20825
[ 637.648554] (t=21003 jiffies g=19853 c=19852 q=260741)
[ 637.648612] Task dump for CPU 112:
[ 637.648646] qemu-system-ppc R running task 0 12037 11828 0x00040004
[ 637.648719] Call Trace:
[ 637.648745] [c000001c1cddb430] [c0000000000f2710] sched_show_task+0xe0/0x180 (unreliable)
[ 637.648825] [c000001c1cddb4a0] [c0000000001326f4] rcu_dump_cpu_stacks+0xe4/0x150
[ 637.648903] [c000001c1cddb4f0] [c000000000137a04] rcu_check_callbacks+0x6b4/0x9c0
[ 637.648985] [c000001c1cddb610] [c00000000013f7c4] update_process_times+0x54/0xa0
[ 637.649067] [c000001c1cddb640] [c000000000156c28] tick_sched_handle.isra.5+0x48/0xe0
[ 637.649147] [c000001c1cddb680] [c000000000156d24] tick_sched_timer+0x64/0xd0
[ 637.649216] [c000001c1cddb6c0] [c000000000140274] __hrtimer_run_queues+0x124/0x420
[ 637.649296] [c000001c1cddb750] [c00000000014123c] hrtimer_interrupt+0xec/0x2c0
[ 637.649374] [c000001c1cddb810] [c00000000001fe5c] __timer_interrupt+0x8c/0x270
[ 637.649456] [c000001c1cddb860] [c00000000002053c] timer_interrupt+0x9c/0xe0
[ 637.649525] [c000001c1cddb890] [c000000000002750] decrementer_common+0x150/0x180
[ 637.649645] --- interrupt: 901 at kvmppc_hv_get_dirty_log+0x1c4/0x570 [kvm_hv]
[ 637.649645] LR = kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv]
[ 637.649760] [c000001c1cddbc30] [d00000001a524980] kvm_vm_ioctl_get_dirty_log_hv+0xd0/0x170 [kvm_hv]
[ 637.649854] [c000001c1cddbc80] [d00000001a4d4140] kvm_vm_ioctl_get_dirty_log+0x40/0x60 [kvm]
[ 637.649936] [c000001c1cddbcb0] [d00000001a4ca3cc] kvm_vm_ioctl+0x3fc/0x760 [kvm]
[ 637.650014] [c000001c1cddbd40] [c0000000002d9e18] do_vfs_ioctl+0xd8/0x8e0
[ 637.650083] [c000001c1cddbde0] [c0000000002da6f4] SyS_ioctl+0xd4/0xf0
[ 637.650153] [c000001c1cddbe30] [c000000000009260] system_call+0x38/0x108
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1629618/+subscriptions
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Qemu-devel] [Bug 1629618] Re: QEMU causes host hang / reset on PPC64EL
2016-10-02 4:01 [Qemu-devel] [Bug 1629618] [NEW] QEMU causes host hang / reset on PPC64EL Timothy Pearson
` (5 preceding siblings ...)
2016-11-08 7:39 ` Thomas Huth
@ 2017-03-30 14:14 ` Thomas Huth
6 siblings, 0 replies; 8+ messages in thread
From: Thomas Huth @ 2017-03-30 14:14 UTC (permalink / raw)
To: qemu-devel
Closing, since this is a kernel problem, not a QEMU problem.
** Changed in: qemu
Status: New => Invalid
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1629618
Title:
QEMU causes host hang / reset on PPC64EL
Status in QEMU:
Invalid
Bug description:
QEMU causes a host hang / reset on PPC64EL when used in KVM + HV mode
(kvm_hv module).
After a random amount of uptime, starting new QEMU virtual machines
will cause the host to experience a soft CPU lockup. Depending on
configuration and other random factors the host will either checkstop
and reboot, or hang indefinitely. The following stacktrace was pulled
from an instance where the host simply hung after starting a fourth
virtual machine.
Command line:
qemu-system-ppc64 --enable-kvm -M pseries -cpu host -smp
14,cores=14,threads=1,sockets=1 -m 64G -realtime mlock=on -kernel
vmlinux-4.7.0-1-powerpc64le -initrd initrd.img-4.7.0-1-powerpc64le
Lockup trace:
[ 527.393933] KVM guest htab at c000003ae4000000 (order 29), LPID 4
[ 574.637695] INFO: rcu_sched self-detected stall on CPU
[ 574.637799] 112-...: (5249 ticks this GP) idle=699/140000000000001/0 softirq=5358/5382 fqs=5072
[ 574.637877] (t=5250 jiffies g=19853 c=19852 q=64401)
[ 574.637947] Task dump for CPU 112:
[ 574.637982] qemu-system-ppc R running task 0 12037 11828 0x00040004
[ 574.638051] Call Trace:
[ 574.638081] [c000001c1cddb430] [c0000000000f2710] sched_show_task+0xe0/0x180 (unreliable)
[ 574.638164] [c000001c1cddb4a0] [c0000000001326f4] rcu_dump_cpu_stacks+0xe4/0x150
[ 574.638246] [c000001c1cddb4f0] [c000000000137a04] rcu_check_callbacks+0x6b4/0x9c0
[ 574.638328] [c000001c1cddb610] [c00000000013f7c4] update_process_times+0x54/0xa0
[ 574.638409] [c000001c1cddb640] [c000000000156c28] tick_sched_handle.isra.5+0x48/0xe0
[ 574.638489] [c000001c1cddb680] [c000000000156d24] tick_sched_timer+0x64/0xd0
[ 574.638602] [c000001c1cddb6c0] [c000000000140274] __hrtimer_run_queues+0x124/0x420
[ 574.638683] [c000001c1cddb750] [c00000000014123c] hrtimer_interrupt+0xec/0x2c0
[ 574.638765] [c000001c1cddb810] [c00000000001fe5c] __timer_interrupt+0x8c/0x270
[ 574.638847] [c000001c1cddb860] [c00000000002053c] timer_interrupt+0x9c/0xe0
[ 574.638915] [c000001c1cddb890] [c000000000002750] decrementer_common+0x150/0x180
[ 574.639001] --- interrupt: 901 at kvmppc_hv_get_dirty_log+0x1c4/0x570 [kvm_hv]
[ 574.639001] LR = kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv]
[ 574.639114] [c000001c1cddbc30] [d00000001a524980] kvm_vm_ioctl_get_dirty_log_hv+0xd0/0x170 [kvm_hv]
[ 574.639209] [c000001c1cddbc80] [d00000001a4d4140] kvm_vm_ioctl_get_dirty_log+0x40/0x60 [kvm]
[ 574.639291] [c000001c1cddbcb0] [d00000001a4ca3cc] kvm_vm_ioctl+0x3fc/0x760 [kvm]
[ 574.639372] [c000001c1cddbd40] [c0000000002d9e18] do_vfs_ioctl+0xd8/0x8e0
[ 574.639442] [c000001c1cddbde0] [c0000000002da6f4] SyS_ioctl+0xd4/0xf0
[ 574.639512] [c000001c1cddbe30] [c000000000009260] system_call+0x38/0x108
[ 580.601573] NMI watchdog: BUG: soft lockup - CPU#112 stuck for 22s! [qemu-system-ppc:12037]
[ 580.601655] Modules linked in: xt_tcpudp(E) rpcsec_gss_krb5(E) nfsv4(E) dns_resolver(E) ext4(E) ecb(E) crc16(E) jbd2(E) mbcache(E) tun(E) btrfs(E) crc32c_generic(E) raid6_pq(E) xor(E) dm_crypt(E) xts(E) gf128mul(E) algif_skcipher(E) af_alg(E) dm_mod(E) bonding(E) cpufreq_stats(E) iptable_filter(E) ip_tables(E) x_tables(E) bridge(E) stp(E) llc(E) ipmi_devintf(E) ipmi_msghandler(E) i2c_dev(E) fuse(E) raid1(E) md_mod(E) ses(E) sd_mod(E) enclosure(E) sg(E) binfmt_misc(E) radeon(E) ttm(E) drm_kms_helper(E) snd_hda_codec_hdmi(E) snd_hda_intel(E) drm(E) snd_hda_codec(E) snd_hda_core(E) snd_hwdep(E) snd_pcm(E) syscopyarea(E) sysfillrect(E) sysimgblt(E) fb_sys_fops(E) snd_timer(E) evdev(E) i2c_algo_bit(E) snd(E) soundcore(E) at24(E) ahci(E) mpt3sas(E) nvmem_core(E) libahci(E) raid_class(E) scsi_transport_sas(E) powernv_rng(E) rng_core(E) uinput(E) kvm_hv(E) kvm(E) ib_srp(E) scsi_transport_srp(E) ofpart(E) powernv_flash(E) mtd(E) nfsd(E) opal_prd(E) auth_rpcgss(E) parport_pc(E) lp(E) parport(E) autofs4(E) nfsv3(E) nfs_acl(E) nfs(E) lockd(E) grace(E) sunrpc(E) fscache(E) ib_ipoib(E) ib_umad(E) rdma_ucm(E) ib_uverbs(E) rdma_cm(E) iw_cm(E) ib_cm(E) ib_sa(E) configfs(E) hid_generic(E) usbhid(E) hid(E) xhci_pci(E) xhci_hcd(E) usbcore(E) tg3(E) usb_common(E) ptp(E) pps_core(E) libphy(E) ib_mthca(E) ib_mad(E) ib_core(E) ib_addr(E)
[ 580.603295] CPU: 112 PID: 12037 Comm: qemu-system-ppc Tainted: G E 4.6.0-2-powerpc64le #1 Debian 4.6.3-1
[ 580.603386] task: c000001f706f0180 ti: c000001c1cdd8000 task.ti: c000001c1cdd8000
[ 580.603456] NIP: d00000001a52cb54 LR: d00000001a52cb88 CTR: 0000000000000000
[ 580.603524] REGS: c000001c1cddb900 TRAP: 0901 Tainted: G E (4.6.0-2-powerpc64le Debian 4.6.3-1)
[ 580.603613] MSR: 9000000000009033 <SF,HV,EE,ME,IR,DR,RI,LE> CR: 24048444 XER: 00000000
[ 580.603784] CFAR: d00000001a52cb18 SOFTE: 1
GPR00: d00000001a52cb88 c000001c1cddbb80 d00000001a53c580 40016e77790fe611
GPR04: 0000000beceac194 00000000019a4544 0000000000000001 0000000000000000
GPR08: 4000000000000000 0000000000000000 0000000000000001 8000000101a9b824
GPR12: c00000000009aea0 c00000000fbbf000
[ 580.604205] NIP [d00000001a52cb54] kvmppc_hv_get_dirty_log+0x1c4/0x570 [kvm_hv]
[ 580.604274] LR [d00000001a52cb88] kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv]
[ 580.604341] Call Trace:
[ 580.604366] [c000001c1cddbb80] [d00000001a52cb88] kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv] (unreliable)
[ 580.604469] [c000001c1cddbc30] [d00000001a524980] kvm_vm_ioctl_get_dirty_log_hv+0xd0/0x170 [kvm_hv]
[ 580.604562] [c000001c1cddbc80] [d00000001a4d4140] kvm_vm_ioctl_get_dirty_log+0x40/0x60 [kvm]
[ 580.604685] [c000001c1cddbcb0] [d00000001a4ca3cc] kvm_vm_ioctl+0x3fc/0x760 [kvm]
[ 580.604765] [c000001c1cddbd40] [c0000000002d9e18] do_vfs_ioctl+0xd8/0x8e0
[ 580.604837] [c000001c1cddbde0] [c0000000002da6f4] SyS_ioctl+0xd4/0xf0
[ 580.604906] [c000001c1cddbe30] [c000000000009260] system_call+0x38/0x108
[ 580.604977] Instruction dump:
[ 580.605012] 2ba90003 419effc4 7fa97000 419effbc 81314310 2f890000 409effb0 7d00b0a8
[ 580.605127] 7d09a039 40820014 7d08a378 7d00b1ad <41e20008> 7e89a378 4c00012c 2fa90000
[ 637.648374] INFO: rcu_sched self-detected stall on CPU
[ 637.648473] 112-...: (21002 ticks this GP) idle=699/140000000000001/0 softirq=5358/5382 fqs=20825
[ 637.648554] (t=21003 jiffies g=19853 c=19852 q=260741)
[ 637.648612] Task dump for CPU 112:
[ 637.648646] qemu-system-ppc R running task 0 12037 11828 0x00040004
[ 637.648719] Call Trace:
[ 637.648745] [c000001c1cddb430] [c0000000000f2710] sched_show_task+0xe0/0x180 (unreliable)
[ 637.648825] [c000001c1cddb4a0] [c0000000001326f4] rcu_dump_cpu_stacks+0xe4/0x150
[ 637.648903] [c000001c1cddb4f0] [c000000000137a04] rcu_check_callbacks+0x6b4/0x9c0
[ 637.648985] [c000001c1cddb610] [c00000000013f7c4] update_process_times+0x54/0xa0
[ 637.649067] [c000001c1cddb640] [c000000000156c28] tick_sched_handle.isra.5+0x48/0xe0
[ 637.649147] [c000001c1cddb680] [c000000000156d24] tick_sched_timer+0x64/0xd0
[ 637.649216] [c000001c1cddb6c0] [c000000000140274] __hrtimer_run_queues+0x124/0x420
[ 637.649296] [c000001c1cddb750] [c00000000014123c] hrtimer_interrupt+0xec/0x2c0
[ 637.649374] [c000001c1cddb810] [c00000000001fe5c] __timer_interrupt+0x8c/0x270
[ 637.649456] [c000001c1cddb860] [c00000000002053c] timer_interrupt+0x9c/0xe0
[ 637.649525] [c000001c1cddb890] [c000000000002750] decrementer_common+0x150/0x180
[ 637.649645] --- interrupt: 901 at kvmppc_hv_get_dirty_log+0x1c4/0x570 [kvm_hv]
[ 637.649645] LR = kvmppc_hv_get_dirty_log+0x1f8/0x570 [kvm_hv]
[ 637.649760] [c000001c1cddbc30] [d00000001a524980] kvm_vm_ioctl_get_dirty_log_hv+0xd0/0x170 [kvm_hv]
[ 637.649854] [c000001c1cddbc80] [d00000001a4d4140] kvm_vm_ioctl_get_dirty_log+0x40/0x60 [kvm]
[ 637.649936] [c000001c1cddbcb0] [d00000001a4ca3cc] kvm_vm_ioctl+0x3fc/0x760 [kvm]
[ 637.650014] [c000001c1cddbd40] [c0000000002d9e18] do_vfs_ioctl+0xd8/0x8e0
[ 637.650083] [c000001c1cddbde0] [c0000000002da6f4] SyS_ioctl+0xd4/0xf0
[ 637.650153] [c000001c1cddbe30] [c000000000009260] system_call+0x38/0x108
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^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2017-03-30 14:21 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2016-10-02 4:01 [Qemu-devel] [Bug 1629618] [NEW] QEMU causes host hang / reset on PPC64EL Timothy Pearson
2016-10-02 4:01 ` [Qemu-devel] [Bug 1629618] " Timothy Pearson
2016-10-04 9:35 ` T. Huth
2016-10-31 6:31 ` Timothy Pearson
2016-11-01 19:57 ` Timothy Pearson
2016-11-07 20:29 ` Timothy Pearson
2016-11-08 7:39 ` Thomas Huth
2017-03-30 14:14 ` Thomas Huth
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