Description of problem: I installed RHEL56-20101110.0 to intel-w3520 host, when I boot up a rhel56 guest, it hangs(attached a screendump), then host it's too slow. But rhel48, rhel55 guest can boot up successfully. This bug can only be reproduced on intel-w3520 machine. Version-Release number of selected component (if applicable): tree: RHEL5.6-Server-20101110.0 kernel: 2.6.18-231.el5 kmod-kvm-83-207.el5 etherboot-zroms-kvm-5.4.4-13.el5 etherboot-roms-kvm-5.4.4-13.el5 kvm-debuginfo-83-207.el5 kvm-83-207.el5 kvm-qemu-img-83-207.el5 kvm-tools-83-207.el5 kmod-kvm-debug-83-207.el5 How reproducible: 100% on intel-w3520 Steps to Reproduce: 1. install RHEL56-20101110.0 to a intel-w3520 machine 2. boot up a rhel56 guest on it Actual results: rhel56 guest hangs during boot up Expected results: rhel56 guest can boot up succesfully Additional info: # ps aux |grep qemu root 16802 0.7 0.0 685288 3200 ? D 22:48 0:01 /usr/bin/qemu-kvm -name vm1 -monitor unix:/tmp/monitor-humanmonitor1-20101115-153315-vgVU,server,nowait -serial unix:/tmp/serial-20101115-153315-vgVU,server,nowait -drive file=/home/kvm_autotest_root/images/RHEL-Server-5.6-64-virtio.qcow2,index=0,if=ide,cache=none -net nic,vlan=0,model=virtio,macaddr=9a:50:1e:5a:aa:e8 -net tap,vlan=0,ifname=t0-153315-vgVU,script=/etc/qemu-ifup-switch,downscript=no -net nic,vlan=1,model=virtio,macaddr=9a:50:1e:5a:b8:7d -net tap,vlan=1,ifname=t1-153315-vgVU,script=/etc/qemu-ifup-switch,downscript=no -net nic,vlan=2,model=virtio,macaddr=9a:50:1e:5a:e8:ff -net tap,vlan=2,ifname=t2-153315-vgVU,script=/etc/qemu-ifup-switch,downscript=no -net nic,vlan=3,model=virtio,macaddr=9a:50:1e:5a:15:ae -net tap,vlan=3,ifname=t3-153315-vgVU,script=/etc/qemu-ifup-switch,downscript=no -m 512 -smp 2 -redir tcp:5000::22 -vnc :0 => gdb (gdb) info threads 5 Thread 0x41694940 (LWP 17044) 0x000000347b831744 in do_sigwaitinfo () from /lib64/libc.so.6 4 Thread 0x42448940 (LWP 17118) 0x000000347b8cc9f7 in ioctl () from /lib64/libc.so.6 3 Thread 0x42e49940 (LWP 17119) 0x000000347b8cc9f7 in ioctl () from /lib64/libc.so.6 2 Thread 0x4384a940 (LWP 17120) 0x000000347b831744 in do_sigwaitinfo () from /lib64/libc.so.6 * 1 Thread 0x2b7463365150 (LWP 17016) 0x000000347b8cd372 in select () from /lib64/libc.so.6 (gdb) bt #0 0x000000347b8cd372 in select () from /lib64/libc.so.6 #1 0x0000000000409501 in qemu_select (timeout=0) at /usr/src/debug/kvm-83-maint-snapshot-20090205/qemu/vl.c:3938 #2 main_loop_wait (timeout=0) at /usr/src/debug/kvm-83-maint-snapshot-20090205/qemu/vl.c:4037 #3 0x000000000050023a in kvm_main_loop () at /usr/src/debug/kvm-83-maint-snapshot-20090205/qemu/qemu-kvm.c:596 #4 0x000000000040e6b5 in main_loop (argc=33, argv=0x7fff30441278, envp=<value optimized out>) at /usr/src/debug/kvm-83-maint-snapshot-20090205/qemu/vl.c:4100 #5 main (argc=33, argv=0x7fff30441278, envp=<value optimized out>) at /usr/src/debug/kvm-83-maint-snapshot-20090205/qemu/vl.c:6536 (gdb) thread 2 [Switching to thread 2 (Thread 0x4384a940 (LWP 17120))]#0 0x000000347b831744 in do_sigwaitinfo () from /lib64/libc.so.6 (gdb) bt #0 0x000000347b831744 in do_sigwaitinfo () from /lib64/libc.so.6 #1 0x000000347b8317fd in sigwaitinfo () from /lib64/libc.so.6 #2 0x000000000041a8a1 in sigwait_compat (opaque=<value optimized out>) at compatfd.c:38 #3 0x000000347c40673d in start_thread () from /lib64/libpthread.so.0 #4 0x000000347b8d40cd in clone () from /lib64/libc.so.6 (gdb) thread 3 [Switching to thread 3 (Thread 0x42e49940 (LWP 17119))]#0 0x000000347b8cc9f7 in ioctl () from /lib64/libc.so.6 (gdb) bt #0 0x000000347b8cc9f7 in ioctl () from /lib64/libc.so.6 #1 0x000000000052b9ca in kvm_run (kvm=0xe7c6c90, vcpu=1, env=0xe881010) at libkvm.c:911 #2 0x0000000000500399 in kvm_cpu_exec (env=0x0) at /usr/src/debug/kvm-83-maint-snapshot-20090205/qemu/qemu-kvm.c:206 #3 0x0000000000500623 in kvm_main_loop_cpu (_env=<value optimized out>) at /usr/src/debug/kvm-83-maint-snapshot-20090205/qemu/qemu-kvm.c:402 #4 ap_main_loop (_env=<value optimized out>) at /usr/src/debug/kvm-83-maint-snapshot-20090205/qemu/qemu-kvm.c:443 #5 0x000000347c40673d in start_thread () from /lib64/libpthread.so.0 #6 0x000000347b8d40cd in clone () from /lib64/libc.so.6 (gdb) thread 4 [Switching to thread 4 (Thread 0x42448940 (LWP 17118))]#0 0x000000347b8cc9f7 in ioctl () from /lib64/libc.so.6 (gdb) bt #0 0x000000347b8cc9f7 in ioctl () from /lib64/libc.so.6 #1 0x000000000052b9ca in kvm_run (kvm=0xe7c6c90, vcpu=0, env=0xe8676f0) at libkvm.c:911 #2 0x0000000000500399 in kvm_cpu_exec (env=0x0) at /usr/src/debug/kvm-83-maint-snapshot-20090205/qemu/qemu-kvm.c:206 #3 0x0000000000500623 in kvm_main_loop_cpu (_env=<value optimized out>) at /usr/src/debug/kvm-83-maint-snapshot-20090205/qemu/qemu-kvm.c:402 #4 ap_main_loop (_env=<value optimized out>) at /usr/src/debug/kvm-83-maint-snapshot-20090205/qemu/qemu-kvm.c:443 #5 0x000000347c40673d in start_thread () from /lib64/libpthread.so.0 #6 0x000000347b8d40cd in clone () from /lib64/libc.so.6 (gdb) thread 5 [Switching to thread 5 (Thread 0x41694940 (LWP 17044))]#0 0x000000347b831744 in do_sigwaitinfo () from /lib64/libc.so.6 (gdb) bt #0 0x000000347b831744 in do_sigwaitinfo () from /lib64/libc.so.6 #1 0x000000347b8317fd in sigwaitinfo () from /lib64/libc.so.6 #2 0x000000000041a8a1 in sigwait_compat (opaque=<value optimized out>) at compatfd.c:38 #3 0x000000347c40673d in start_thread () from /lib64/libpthread.so.0 #4 0x000000347b8d40cd in clone () from /lib64/libc.so.6 (gdb) thread 1 [Switching to thread 1 (Thread 0x2b7463365150 (LWP 17016))]#0 0x000000347b8cd372 in select () from /lib64/libc.so.6 (gdb) bt #0 0x000000347b8cd372 in select () from /lib64/libc.so.6 #1 0x0000000000409501 in qemu_select (timeout=0) at /usr/src/debug/kvm-83-maint-snapshot-20090205/qemu/vl.c:3938 #2 main_loop_wait (timeout=0) at /usr/src/debug/kvm-83-maint-snapshot-20090205/qemu/vl.c:4037 #3 0x000000000050023a in kvm_main_loop () at /usr/src/debug/kvm-83-maint-snapshot-20090205/qemu/qemu-kvm.c:596 #4 0x000000000040e6b5 in main_loop (argc=33, argv=0x7fff30441278, envp=<value optimized out>) at /usr/src/debug/kvm-83-maint-snapshot-20090205/qemu/vl.c:4100 #5 main (argc=33, argv=0x7fff30441278, envp=<value optimized out>) at /usr/src/debug/kvm-83-maint-snapshot-20090205/qemu/vl.c:6536 => kvm_stat efer_reload 0 0 exits 54202953 901627 fpu_reload 101299 54 halt_exits 56 0 halt_wakeup 1 0 host_state_reload 106040 54 hypercalls 0 0 insn_emulation 21299 0 insn_emulation_fail 0 0 invlpg 0 0 io_exits 106641 18 irq_exits 32980 495 irq_injections 4123 18 irq_window 3770 14 kvm_request_irq 0 0 largepages 0 0 mmio_exits 166 0 mmu_cache_miss 68 0 mmu_flooded 0 0 mmu_pde_zapped 0 0 mmu_pte_updated 0 0 mmu_pte_write 0 0 mmu_recycled 0 0 mmu_shadow_zapped 79 0 mmu_unsync 0 0 mmu_unsync_global 0 0 nmi_injections 0 0 nmi_window 0 0 pf_fixed 150 0 pf_guest 0 0 remote_tlb_flush 2 0 request_nmi 0 0 signal_exits 3 0 tlb_flush 43 0 => top info top - 22:54:12 up 16:41, 3 users, load average: 5.10, 4.89, 3.58 Tasks: 134 total, 1 running, 132 sleeping, 1 stopped, 0 zombie Cpu(s): 0.1%us, 2.6%sy, 0.0%ni, 43.4%id, 52.4%wa, 0.1%hi, 1.5%si, 0.0%st Mem: 8164612k total, 4658552k used, 3506060k free, 7688k buffers Swap: 10223608k total, 0k used, 10223608k free, 4431568k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 2903 root 10 -5 0 0 0 S 5.0 0.0 2:42.81 kondemand/2 16802 root 18 0 669m 3200 2132 D 2.7 0.0 0:03.23 qemu-kvm 16 root 10 -5 0 0 0 S 1.0 0.0 0:10.83 events/2 96 root 10 -5 0 0 0 S 0.7 0.0 0:27.97 kblockd/2 13334 root 15 0 77992 2636 844 S 0.3 0.0 0:02.65 screen 1 root 15 0 10372 636 544 S 0.0 0.0 0:00.63 init 2 root RT -5 0 0 0 S 0.0 0.0 0:00.00 migration/0 3 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/0 4 root RT -5 0 0 0 S 0.0 0.0 0:00.00 watchdog/0 5 root RT -5 0 0 0 S 0.0 0.0 0:00.00 migration/1 6 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/1 7 root RT -5 0 0 0 S 0.0 0.0 0:00.00 watchdog/1 8 root RT -5 0 0 0 S 0.0 0.0 0:00.91 migration/2 9 root 34 19 0 0 0 S 0.0 0.0 0:00.01 ksoftirqd/2 10 root RT -5 0 0 0 S 0.0 0.0 0:00.00 watchdog/2 11 root RT -5 0 0 0 S 0.0 0.0 0:00.00 migration/3 12 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/3 13 root RT -5 0 0 0 S 0.0 0.0 0:00.00 watchdog/3 14 root 10 -5 0 0 0 S 0.0 0.0 0:00.45 events/0 => cpuinfo: processor : 3 vendor_id : GenuineIntel cpu family : 6 model : 26 model name : Intel(R) Xeon(R) CPU W3520 @ 2.67GHz stepping : 5 cpu MHz : 1596.000 cache size : 8192 KB physical id : 0 siblings : 4 core id : 3 cpu cores : 4 apicid : 6 fpu : yes fpu_exception : yes cpuid level : 11 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr sse4_1 sse4_2 popcnt lahf_lm bogomips : 5333.25 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: [8] => meminfo MemTotal: 8164612 kB MemFree: 3502732 kB Buffers: 4992 kB Cached: 4443960 kB SwapCached: 0 kB Active: 57656 kB Inactive: 4426828 kB HighTotal: 0 kB HighFree: 0 kB LowTotal: 8164612 kB LowFree: 3502732 kB SwapTotal: 10223608 kB SwapFree: 10223608 kB Dirty: 467044 kB Writeback: 0 kB AnonPages: 35304 kB Mapped: 16472 kB Slab: 144312 kB PageTables: 4180 kB NFS_Unstable: 0 kB Bounce: 0 kB CommitLimit: 14305912 kB Committed_AS: 181760 kB VmallocTotal: 34359738367 kB VmallocUsed: 267752 kB VmallocChunk: 34359470511 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 Hugepagesize: 2048 kB
Closing this as it has not been reproduced. Please reopen if it can reproduced.