Hi, 1.7.2 is a really old version of qemu; why are you using that? Does it happen with a newer version?
When you say 'Qemu crashed after starting and stopping VM for many times' do you mean starting a VM and shutting it down completely, or do you mean some type of pause/resume? When it crashes, what was on the display - was it still at the BIOS or inside the guest? Which guest OS ? -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1800786 Title: USB assertion `s->csw.sig == cpu_to_le32(0x53425355)' failed Status in QEMU: New Bug description: Qemu crashed after starting and stopping VM for many times, and the final log shows below. qemu-system-x86_64: hw/usb/dev-storage.c:236: usb_msd_send_status: Assertion `s->csw.sig == cpu_to_le32(0x53425355)' failed. 2018-10-05 15:33:11.261+0000: shutting down I got the back trace in coredump file: -----------------------back trace---------------------------------------- #0 0x00007fc890e6cff9 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56 #1 0x00007fc890e700f8 in __GI_abort () at abort.c:89 #2 0x00007fc890e66216 in __assert_fail_base ( fmt=0x7fc890f9dfc0 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=assertion@entry=0x7fc8957cd460 "s->csw.sig == cpu_to_le32(0x53425355)", file=file@entry=0x7fc8957cd2d0 "hw/usb/dev-storage.c", line=line@entry=236, function=function@entry=0x7fc8957cd5e0 <__PRETTY_FUNCTION__.29765> "usb_msd_send_status") at assert.c:92 #3 0x00007fc890e662c2 in __GI___assert_fail ( assertion=assertion@entry=0x7fc8957cd460 "s->csw.sig == cpu_to_le32(0x53425355)", file=file@entry=0x7fc8957cd2d0 "hw/usb/dev-storage.c", line=line@entry=236, function=function@entry=0x7fc8957cd5e0 <__PRETTY_FUNCTION__.29765> "usb_msd_send_status") at assert.c:101 #4 0x00007fc8955dee12 in usb_msd_send_status (s=0x7fc8961588f0, p=<optimized out>) at hw/usb/dev-storage.c:236 #5 0x00007fc8955df092 in usb_msd_handle_data (dev=0x7fc8961588f0, p=0x7fc896105260) at hw/usb/dev-storage.c:507 #6 0x00007fc8955d5940 in usb_handle_packet (dev=<optimized out>, p=p@entry=0x7fc896105260) at hw/usb/core.c:407 #7 0x00007fc8955ea8a8 in uhci_handle_td (s=s@entry=0x7fc896133080, ---Type <return> to continue, or q <return> to quit--- q=0x7fc896197c90, q@entry=0x0, qh_addr=qh_addr@entry=253943810, td=td@entry=0x7ffcc646c0e0, td_addr=<optimized out>, int_mask=int_mask@entry=0x7ffcc646c0cc) at hw/usb/hcd-uhci.c:911 #8 0x00007fc8955eada9 in uhci_process_frame (s=s@entry=0x7fc896133080) at hw/usb/hcd-uhci.c:1091 #9 0x00007fc8955eaff5 in uhci_frame_timer (opaque=0x7fc896133080) at hw/usb/hcd-uhci.c:1190 #10 0x00007fc895636c69 in timerlist_run_timers (timer_list=0x7fc896093af0) at qemu-timer.c:491 #11 0x00007fc895636f01 in qemu_clock_run_timers (type=<optimized out>) at qemu-timer.c:502 #12 qemu_clock_run_all_timers () at qemu-timer.c:608 #13 0x00007fc8955f9b0c in main_loop_wait (nonblocking=<optimized out>) at main-loop.c:507 #14 0x00007fc8954bc750 in main_loop () at vl.c:2021 #15 main (argc=<optimized out>, argv=<optimized out>, envp=<optimized out>) at vl.c:4447 ------------------------------------------------------------------------------- QEMU release version: 1.7.2 QEMU command: qemu-system-x86_64 -enable-kvm -name guest=guest,debug-threads=on -S -object secret,id=masterKey0,format=raw,file=/var/lib/libvirt/qemu/domain-42-guest /master-key.aes -machine pc-i440fx-xenial,accel=kvm,usb=off,dump- guest-core=off -cpu IvyBridge- IBRS,ss=on,vmx=on,pcid=on,hypervisor=on,arat=on,tsc_adjust=on,ssbd=on,xsaveopt=on -m 1024 -realtime mlock=off -smp 1,sockets=1,cores=1,threads=1 -uuid f4fdccb5-8c59-441f-9a78-83d23fbc34f6 -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/domain-42-guest/monitor.sock,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc,driftfix=slew -global kvm-pit.lost_tick_policy=delay -no-hpet -no-shutdown -global PIIX4_PM.disable_s3=1 -global PIIX4_PM.disable_s4=1 -boot menu=off,strict=on -kernel /nfsroot/rootfs/root/bzImage -initrd /nfsroot/rootfs/root/wrlinux- image-initramfs-x86-64-kvm-guest.cpio.gz -device piix3-usb- uhci,id=usb,bus=pci.0,addr=0x1.0x2 -device lsi,id=scsi0,bus=pci.0,addr=0x7 -device ahci,id=sata0,bus=pci.0,addr=0x6 -device virtio-serial-pci,id=virtio- serial0,bus=pci.0,addr=0x5 -drive file=/nfsroot/rootfs.ovp6/wrlinux- image-ovp-kvm- intel-x86-64-20181015084008.rootfs.ext3,format=raw,if=none,id=drive- usb-disk0 -device usb-storage,bus=usb.0,port=1,drive=drive-usb- disk0,id=usb-disk0,bootindex=1,removable=off -netdev tap,fd=26,id=hostnet0 -device e1000,netdev=hostnet0,id=net0,mac=52:54:00:93:6b:0c,bus=pci.0,addr=0x3 -chardev pty,id=charserial0 -device isa- serial,chardev=charserial0,id=serial0 -chardev spicevmc,id=charchannel0,name=vdagent -device virtserialport,bus =virtio- serial0.0,nr=1,chardev=charchannel0,id=channel0,name=com.redhat.spice.0 -spice port=5900,addr=127.0.0.1,disable-ticketing,image- compression=off,seamless-migration=on -device qxl- vga,id=video0,ram_size=67108864,vram_size=67108864,vram64_size_mb=0,vgamem_mb=16,max_outputs=1,bus=pci.0,addr=0x2 -device intel-hda,id=sound0,bus=pci.0,addr=0x4 -device hda- duplex,id=sound0-codec0,bus=sound0.0,cad=0 -device virtio-balloon- pci,id=balloon0,bus=pci.0,addr=0x8 -msg timestamp=on To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1800786/+subscriptions
