On Wed, 07/09 20:50, Andrey Korolyov wrote: > Hello, > > I`ve observed an immediate crash running tagged -rc1 with > virtio-blk(675879f6f3c9463e103735a4e41e9deb0bee9b39). Please take a > look on attached backtrace, hope that the fix still can made its way > to 2.1. 1.6 works well with same config, so it`s clearly a regression.
This one should fix it: http://lists.nongnu.org/archive/html/qemu-devel/2014-07/msg01531.html Fam > /usr/bin/qemu-system-x86_64 -name Windows2008R2 -S -machine > pc-i440fx-2.1,accel=kvm,usb=off -m 4096 -realtime mlock=off -smp > 2,sockets=1,cores=2,threads=2 -numa node,nodeid=0,cpus=0,mem=4096 -uuid > 16e64e7e-2582-3236-c93b-ab37828325ea -no-user-config -nodefaults -chardev > socket,id=charmonitor,path=/var/lib/libvirt/qemu/Windows2008R2.monitor,server,nowait > -mon chardev=charmonitor,id=monitor,mode=control -rtc base=localtime > -no-shutdown -boot strict=on -device > piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -device > virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x3 -drive > file=/dev/virtmachines/win2008r2,if=none,id=drive-virtio-disk0,format=raw,cache=none,aio=native > -device > virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 > -chardev pty,id=charserial0 -device > isa-serial,chardev=charserial0,id=serial0 -chardev > socket,id=charchannel0,path=/var/lib/libvirt/qemu/win2008r2.sock,server,nowait > -device > virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=org.qemu.guest_agent.1 > -device usb-tablet,id=input0 -vnc 127.0.0.1:0 -device > cirrus-vga,id=video0,bus=pci.0,addr=0x2 -cpu qemu64,hv_relaxed -set > device.virtio-disk0.config-wce=off -set device.virtio-disk0.scsi=off -set > device.virtio-disk0.x-data-plane=on -msg timestamp=on > Program received signal SIGSEGV, Segmentation fault. > [Switching to Thread 0x7f79a8bfe700 (LWP 11306)] > 0x00007f79badf323f in virtio_blk_rw_complete (opaque=0x7f79bb9606a0, ret=0) > at > /var/tmp/portage/app-emulation/qemu-2.1.0/work/qemu-2.1.0/hw/block/virtio-blk.c:99 > 99 bdrv_acct_done(req->dev->bs, &req->acct); > (gdb) thread apply all bt > > Thread 5 (Thread 0x7f79aa753700 (LWP 11302)): > #0 0x00007f79b4a87727 in ioctl () from /lib64/libc.so.6 > #1 0x00007f79bade24d9 in kvm_vcpu_ioctl (cpu=cpu@entry=0x7f79bba17eb0, > type=type@entry=44672) at > /var/tmp/portage/app-emulation/qemu-2.1.0/work/qemu-2.1.0/kvm-all.c:1845 > #2 0x00007f79bade2615 in kvm_cpu_exec (cpu=cpu@entry=0x7f79bba17eb0) at > /var/tmp/portage/app-emulation/qemu-2.1.0/work/qemu-2.1.0/kvm-all.c:1714 > #3 0x00007f79badcdd2c in qemu_kvm_cpu_thread_fn (arg=0x7f79bba17eb0) at > /var/tmp/portage/app-emulation/qemu-2.1.0/work/qemu-2.1.0/cpus.c:874 > #4 0x00007f79b7589f3a in start_thread () from /lib64/libpthread.so.0 > #5 0x00007f79b4a8fc3d in clone () from /lib64/libc.so.6 > > Thread 4 (Thread 0x7f79a9f52700 (LWP 11303)): > #0 0x00007f79b4a87727 in ioctl () from /lib64/libc.so.6 > #1 0x00007f79bade24d9 in kvm_vcpu_ioctl (cpu=cpu@entry=0x7f79bba53760, > type=type@entry=44672) at > /var/tmp/portage/app-emulation/qemu-2.1.0/work/qemu-2.1.0/kvm-all.c:1845 > #2 0x00007f79bade2615 in kvm_cpu_exec (cpu=cpu@entry=0x7f79bba53760) at > /var/tmp/portage/app-emulation/qemu-2.1.0/work/qemu-2.1.0/kvm-all.c:1714 > #3 0x00007f79badcdd2c in qemu_kvm_cpu_thread_fn (arg=0x7f79bba53760) at > /var/tmp/portage/app-emulation/qemu-2.1.0/work/qemu-2.1.0/cpus.c:874 > #4 0x00007f79b7589f3a in start_thread () from /lib64/libpthread.so.0 > #5 0x00007f79b4a8fc3d in clone () from /lib64/libc.so.6 > > Thread 3 (Thread 0x7f79a8bfe700 (LWP 11306)): > #0 0x00007f79badf323f in virtio_blk_rw_complete (opaque=0x7f79bb9606a0, > ret=0) at > /var/tmp/portage/app-emulation/qemu-2.1.0/work/qemu-2.1.0/hw/block/virtio-blk.c:99 > #1 0x00007f79bb029a62 in bdrv_co_em_bh (opaque=0x7f789400dc30) at > /var/tmp/portage/app-emulation/qemu-2.1.0/work/qemu-2.1.0/block.c:4666 > #2 0x00007f79bb021597 in aio_bh_poll (ctx=ctx@entry=0x7f79bba37e90) at > /var/tmp/portage/app-emulation/qemu-2.1.0/work/qemu-2.1.0/async.c:81 > #3 0x00007f79bb032d05 in aio_poll (ctx=0x7f79bba37e90, > blocking=blocking@entry=true) at > /var/tmp/portage/app-emulation/qemu-2.1.0/work/qemu-2.1.0/aio-posix.c:188 > #4 0x00007f79baea67b7 in iothread_run (opaque=0x7f79bbc18728) at > /var/tmp/portage/app-emulation/qemu-2.1.0/work/qemu-2.1.0/iothread.c:41 > #5 0x00007f79b7589f3a in start_thread () from /lib64/libpthread.so.0 > #6 0x00007f79b4a8fc3d in clone () from /lib64/libc.so.6 > > Thread 2 (Thread 0x7f789b7ff700 (LWP 11307)): > #0 0x00007f79b758dd0c in pthread_cond_wait () from /lib64/libpthread.so.0 > #1 0x00007f79bb07fcb9 in qemu_cond_wait (cond=cond@entry=0x7f79bbc17e20, > mutex=mutex@entry=0x7f79bbc17e50) at > /var/tmp/portage/app-emulation/qemu-2.1.0/work/qemu-2.1.0/util/qemu-thread-posix.c:135 > #2 0x00007f79bb01c95b in vnc_worker_thread_loop > (queue=queue@entry=0x7f79bbc17e20) at > /var/tmp/portage/app-emulation/qemu-2.1.0/work/qemu-2.1.0/ui/vnc-jobs.c:222 > #3 0x00007f79bb01cd30 in vnc_worker_thread (arg=0x7f79bbc17e20) at > /var/tmp/portage/app-emulation/qemu-2.1.0/work/qemu-2.1.0/ui/vnc-jobs.c:323 > #4 0x00007f79b7589f3a in start_thread () from /lib64/libpthread.so.0 > #5 0x00007f79b4a8fc3d in clone () from /lib64/libc.so.6 > > Thread 1 (Thread 0x7f79bac87980 (LWP 11301)): > #0 0x00007f79b4a86116 in ppoll () from /lib64/libc.so.6 > #1 0x00007f79bb031b19 in ppoll (__ss=0x0, __timeout=0x7fffa40e26e0, > __nfds=<optimized out>, __fds=<optimized out>) at /usr/include/bits/poll2.h:77 > #2 qemu_poll_ns (fds=<optimized out>, nfds=<optimized out>, > timeout=timeout@entry=510000000) at > /var/tmp/portage/app-emulation/qemu-2.1.0/work/qemu-2.1.0/qemu-timer.c:319 > #3 0x00007f79bb030f04 in os_host_main_loop_wait (timeout=510000000) at > /var/tmp/portage/app-emulation/qemu-2.1.0/work/qemu-2.1.0/main-loop.c:229 > #4 main_loop_wait (nonblocking=<optimized out>) at > /var/tmp/portage/app-emulation/qemu-2.1.0/work/qemu-2.1.0/main-loop.c:484 > #5 0x00007f79bad9eb9d in main_loop () at > /var/tmp/portage/app-emulation/qemu-2.1.0/work/qemu-2.1.0/vl.c:2010 > #6 main (argc=<optimized out>, argv=<optimized out>, envp=<optimized out>) > at /var/tmp/portage/app-emulation/qemu-2.1.0/work/qemu-2.1.0/vl.c:4530
